User equipment initiated beam reporting adaptation
Patent Information
- Application Number
- CN202480089835.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2026-10-27
Smart Images

Figure CN122996716A_ABST
Abstract
Description
Technical Field
[0001] All aspects of this disclosure relate to wireless communication in general, and more particularly to techniques, apparatus and methods for user equipment-initiated beam reporting adaptation. Background Technology
[0002] Wireless communication systems are widely deployed to provide a variety of services, including voice, text, messaging, video, data, and / or other services. Services may include unicast, multicast, and / or broadcast services, etc. Typical wireless communication systems employ multiple access radio access technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (e.g., time-domain resources, frequency-domain resources, spatial-domain resources, and / or device transmit power, etc.). Examples of such multiple access RATs include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems.
[0003] The aforementioned Multiple Access RATs have been adopted in various telecommunications standards to provide a common protocol enabling different wireless communication devices to communicate at the city, national, regional, or global level. An example telecommunications standard is New Radio (NR). NR (also known as 5G) is part of the continuous evolution of mobile broadband announced by the 3rd Generation Partnership Project (3GPP). NR (and other mobile broadband evolutions beyond NR) can be designed to better support the Internet of Things (IoT) and reduced-capacity device deployments, industrial connectivity, millimeter-wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployments, sidelinks and other device-to-device direct communication technologies (e.g., cellular vehicle-to-everything (CV2X) communications), massive MIMO, decomposed network architectures and network topology expansion, multi-subscriber implementations, high-precision positioning and / or radio frequency (RF) sensing, and more. As the demand for mobile broadband access continues to grow, further improvements to NR can be implemented, and other radio access technologies (such as 6G) can be introduced to further advance mobile broadband evolution. Summary of the Invention
[0004] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include receiving a first beam report configuration and a second beam report configuration. The method may include the UE using the second beam report configuration to transmit a second beam report at least partially based on the first beam report, wherein the first beam report uses the first beam report configuration and the second beam report is initiated by the UE.
[0005] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving a beam report configuration associated with a first measurement reference signal resource set and a second measurement reference signal resource set. The method may include transmitting a first beam report for the first measurement reference signal resource set. The method may include transmitting a second beam report for the second measurement reference signal resource set after a handover from the first measurement reference signal resource set.
[0006] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be individually or collectively configured to receive a first beam report configuration and a second beam report configuration. The one or more processors may be individually or collectively configured to use the second beam report configuration to transmit a second beam report at least partially based on the first beam report, wherein the first beam report uses the first beam report configuration and the second beam report is initiated by the UE.
[0007] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be individually or collectively configured to receive beam report configurations associated with a first measurement reference signal resource set and a second measurement reference signal resource set. The one or more processors may be individually or collectively configured to transmit a first beam report for the first measurement reference signal resource set. The one or more processors may be individually or collectively configured to transmit a second beam report for the second measurement reference signal resource set after a handover from the first measurement reference signal resource set.
[0008] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive a first beam report configuration and a second beam report configuration. When executed by one or more processors of the UE, the set of instructions enables the UE to use the second beam report configuration to transmit a second beam report at least partially based on the first beam report, wherein the first beam report uses the first beam report configuration and the second beam report is initiated by the UE.
[0009] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive beam report configurations associated with a first measurement reference signal resource set and a second measurement reference signal resource set. When executed by one or more processors of the UE, the set of instructions enables the UE to send a first beam report for the first measurement reference signal resource set. When executed by one or more processors of the UE, the set of instructions enables the UE to send a second beam report for the second measurement reference signal resource set after a handover from the first measurement reference signal resource set.
[0010] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving a first beam report configuration and a second beam report configuration. The apparatus may also include components for the UE to transmit a second beam report, at least partially based on the first beam report, using the second beam report configuration, wherein the first beam report uses the first beam report configuration and the second beam report is initiated by the apparatus.
[0011] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving beam report configurations associated with a first measurement reference signal resource set and a second measurement reference signal resource set. The apparatus may include components for transmitting a first beam report for the first measurement reference signal resource set. The apparatus may include components for transmitting a second beam report for the second measurement reference signal resource set after a switch from the first measurement reference signal resource set.
[0012] Various aspects of this disclosure may be implemented or be implemented as described in whole by or embodied in the methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network nodes, network entities, wireless communication devices and / or processing systems as fully described in the specification and drawings and illustrated in the specification and drawings.
[0013] The preceding paragraphs of this section have broadly summarized some aspects of this disclosure. These and additional aspects and their associated advantages will be described below. The disclosed aspects can serve as the basis for modifying or designing other aspects for performing the same or similar purposes of this disclosure. Such equivalent aspects do not depart from the scope of the appended claims. The characteristics of the aspects disclosed herein, their organization and operation, and their associated advantages will be better understood from the following description taken in conjunction with the accompanying drawings. Attached Figure Description
[0014] The accompanying drawings illustrate some aspects of this disclosure but do not limit its scope, as other aspects can be achieved through this description. Each drawing in the drawings is provided for illustrative and descriptive purposes and not as a definition of limitation of the claims. Identical or similar reference numerals in different drawings may identify identical or similar elements.
[0015] Figure 1 This is a diagram illustrating an example of a wireless communication network according to the present disclosure.
[0016] Figure 2 This is a diagram illustrating an example network node communicating with an example user equipment (UE) in a wireless network according to the present disclosure.
[0017] Figure 3 This is a diagram illustrating an example decomposed base station architecture according to this disclosure.
[0018] Figure 4 This is a diagram illustrating an example of the channel state information (CSI) reference signal beam management process according to this disclosure.
[0019] Figure 5 This is a diagram illustrating an example of UE-based beam reporting adaptation according to this disclosure.
[0020] Figure 6 This is an illustration of an example of the transmission of a second beam report based on a first beam report in accordance with this disclosure.
[0021] Figure 7 This is a diagram illustrating an example of a set of switching measurement reference signals (RS) resources associated with this disclosure.
[0022] Figure 8 This is a diagram illustrating an example of a set of switching measurement RS resources according to this disclosure.
[0023] Figure 9 This is a diagram illustrating an example process performed, for example, at the UE or a device of the UE, according to this disclosure.
[0024] Figure 10 This is a diagram illustrating an example process performed, for example, at the UE or a device of the UE, according to this disclosure.
[0025] Figure 11 This is a diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation
[0026] Various aspects of this disclosure are described below with reference to the accompanying drawings. However, aspects of this disclosure may be embodied in many different forms and should not be construed as limited to any specific aspect illustrated or described with reference to the drawings or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of this disclosure to those skilled in the art. Those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, various combinations or numbers of aspects set forth herein may be used to implement an apparatus or a method of practice. Furthermore, the scope of this disclosure is intended to cover apparatuses having structures and / or functionalities other than those available for practicing the various aspects of this disclosure set forth herein, or methods of practice using those other structures and / or functionalities. Any aspect of this disclosure disclosed herein may be embodied by one or more elements of the claims.
[0027] Various methods, operations, apparatuses, and techniques will now be presented with reference to them. These methods, operations, apparatuses, and techniques will be described in detail below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively, “elements”). These elements may be implemented using hardware, software, or a combination of hardware and software. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole.
[0028] User equipment (UE) can measure reference signals on the channel and provide beam reports (channel state information (CSI) reports) to assist network entities in scheduling communications. The UE can send beam reports or request beam management based at least in part on the detection of beam events. For example, the UE can detect beam events such as the reference signal received power (RSRP) falling below a threshold, the signal-to-interference-plus-noise ratio (SINR) falling below a threshold, or a beam failure. The UE can switch to or activate a beam based at least in part on sending beam reports. The UE can initiate beam switching without receiving an indication from the network entity. UE-initiated beam switching reduces the latency and overhead involved in the network signaling beam switching. However, some events or decision-making still increase latency.
[0029] Various aspects are involved in beam management as a whole. Some aspects are more specifically related to UE-initiated beam reporting adaptation (e.g., changing beam reporting resources). In some aspects, the UE may dynamically initiate a second beam report that is at least partially based on the first beam report. The first beam report may be initiated by a network entity and may involve measurements of a first set of reference signal resources (e.g., CSI Reference Signal (CSI-RS) resources). The second beam report may involve measurements of a second set of reference signal resources (e.g., CSI-RS resources). The UE may have already received a first configuration for the first beam report and a second configuration for the second beam report.
[0030] In one example, when at least one transmit beam corresponding to a second set of CSI-RS resources is better (e.g., greater signal strength, greater signal quality) than the best (e.g., maximum signal strength, maximum signal quality) transmit beam corresponding to a first set of CSI-RS resources, the UE may dynamically initiate a report for the second set of CSI-RS resources. Initiating a second beam report may include sending a request to a network entity to initiate a second beam report.
[0031] Specific aspects of the subject matter described in this disclosure can be implemented to achieve one or more of the following potential advantages. By dynamically initiating reporting of a second beam report based on a first beam report, the UE saves signaling resources and reduces the latency of stopping or starting beam reporting.
[0032] In another scenario, the UE may receive configuration for multiple measurement reference signal (RS) resource sets. A network entity may use a first RS resource set to initiate a first beam report. The UE may measure reference signals from the first RS resource set and transmit the first beam report. In some aspects, the UE may switch from the first RS resource set to a second RS resource set to improve beam selection while reducing latency. The UE may switch to the second RS resource set at least in part based on the first beam report. For example, when at least one transmit beam corresponding to the second CSI-RS resource set is superior to the optimal transmit beam corresponding to the first CSI-RS resource set, the UE may initiate a report for the second CSI-RS resource set (and cease reporting for the first CSI-RS resource set).
[0033] By switching from a first RS set to a second RS set based at least in part on a first beam report, the UE can optimize transmit beam selection to further reduce latency.
[0034] Multiple access radio access technology (RAT) has been adopted in various telecommunications standards to provide a common protocol that enables wireless communication devices to communicate at the city, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of the continuous mobile broadband evolution announced by the 3rd Generation Partnership Project (3GPP). 5G NR supports a variety of technologies and use cases, including enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), massive machine-type communication (mMTC), millimeter wave (mmWave) technology, beamforming, network slicing, edge computing, Internet of Things (IoT) connectivity and management, and network function virtualization (NFV).
[0035] As the demand for broadband access increases and as the technologies supported by wireless communication networks evolve, further technological improvements can be adopted or implemented in 5G NR or future RATs (such as 6G) to further advance the evolution of wireless communication for a variety of existing and new use cases and applications. Such technological improvements can be associated with new frequency band extensions, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, decomposed network architectures and network topology extensions, device aggregation, advanced duplex communication, sidelinks and other device-to-device direct communication, IoT (including passive or ambient IoT) networks, reduced-capacity (RedCap) UE functionality, industrial connectivity, multi-subscriber implementations, high-precision positioning, radio frequency (RF) sensing and / or artificial intelligence or machine learning (AI / ML), and more. These technological improvements can support use cases such as wireless backhaul, wireless data centers, extended reality (XR) and metaverse applications, meta-services for supporting vehicle connectivity, holographic and mixed reality communications, autonomous and collaborative robots, vehicle platooning and collaborative manipulation, sensor networks, posture monitoring, brain-computer interfaces, digital twin applications, asset management, and general coverage applications using off-ground and / or aerial platforms, among others. The methods, operations, apparatuses, and techniques described herein can implement one or more of the foregoing technologies and / or support one or more of the foregoing use cases.
[0036] Figure 1 This is a diagram illustrating an example of a wireless communication network 100 according to the present disclosure. The wireless communication network 100 may be a 5G (or NR) network or a 6G network, or may include elements of a 5G (or NR) network or elements of a 6G network, etc. The wireless communication network 100 may include a plurality of network nodes 110, shown as network node (NN) 110a, network node 110b, network node 110c, and network node 110d. Network nodes 110 may support communication with a plurality of UEs 120 (shown as UE120a, UE 120b, UE 120c, UE 120d, and UE 120e).
[0037] Network nodes 110 and UEs 120 of wireless communication network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, frequency bands, carriers, and / or channels according to frequency or wavelength. For example, devices of wireless communication network 100 can communicate using one or more operating frequency bands. In some aspects, multiple wireless networks 100 can be deployed in a given geographical area. Each wireless communication network 100 can support a specific RAT (which may also be referred to as an air interface) and can operate on one or more carrier frequencies in one or more frequency ranges. Examples of RATs include 4G RATs, 5G / NRRATs, and / or 6G RATs, etc. In some examples, when multiple RATs are deployed in a given geographical area, each RAT in that geographical area can operate on a different frequency to avoid interference with each other.
[0038] Various operating frequency bands have been defined as frequency ranges designated FR1 (410 MHz to 7.125 GHz), FR2 (24.25 GHz to 52.6 GHz), FR3 (7.125 GHz to 24.25 GHz), FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Although a portion of FR1 is greater than 6 GHz, in some documents and articles, FR1 is often (interchangeably) referred to as the “sub-6 GHz” band. Similarly, in some documents and articles, FR2 is often (interchangeably) referred to as the “millimeter wave” band, but this is different from the Very High Frequency (EHF) band (30 GHz to 300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU). The frequencies between FR1 and FR2 are often referred to as the mid-band frequencies, including FR3. Frequency bands falling within FR3 can inherit FR1 or FR2 characteristics, thereby effectively extending the characteristics of FR1 or FR2 into mid-band frequencies. Therefore, "below 6 GHz" (if used herein) can broadly refer to frequencies less than 6 GHz, within FR1, and / or included in mid-band frequencies. Similarly, the term "millimeter wave" (if used herein) can broadly refer to frequencies included in mid-band frequencies, within FR2, FR4, FR4-a, FR4-1, or FR5, and / or within the EHF band. Higher frequency bands can extend 5G NR operation, 6G operation, and / or other RATs above 52.6 GHz. For example, each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band. In some examples, the wireless communication network 100 can implement dynamic spectrum sharing (DSS), where multiple RATs (e.g., 4G / LTE and 5G / NR) are implemented within a single frequency band using dynamic bandwidth allocation (e.g., based on user demand). It is conceivable that the frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1 and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0039] Network node 110 may include one or more devices, components, or systems that enable communication between UE 120 and one or more devices, components, or systems of wireless communication network 100. Network node 110 may be, may include, or may also be referred to as an NR network node, 5G network node, 6G network node, node B, eNB, gNB, access point (AP), transmit / receive point (TRP), mobility element, core, network entity, network element, network equipment, and / or another type of device, component, or system included in a radio access network (RAN).
[0040] Network node 110 may be implemented as a single physical node (e.g., a single physical structure) or as two or more physical nodes (e.g., two or more different physical structures). For example, network node 110 may be a device or system implementing a portion of a radio protocol stack, a device or system implementing a complete radio protocol stack (such as a complete gNB protocol stack), or a collection of devices or systems collectively implementing a complete radio protocol stack. For example, and as shown, network node 110 may be an aggregated network node (with an aggregated architecture), meaning that network node 110 can implement a complete radio protocol stack physically and logically integrated within a single node (e.g., a single physical structure) in the wireless communication network 100. For example, aggregated network node 110 may consist of a single standalone base station or a single TRP that uses the complete radio protocol stack to implement or facilitate communication between UE 120 and the core network of wireless communication network 100.
[0041] Alternatively, and also as shown in the figure, network node 110 can be a decomposed network node (sometimes referred to as a decomposed base station), meaning that network node 110 can realize a radio protocol stack that is physically distributed and / or logically distributed among two or more nodes in the same or different geographical locations. For example, a decomposed network node may have a decomposed architecture. In some deployments, decomposed network node 110 may be used in integrated access and backhaul (IAB) networks, in open radio access networks (O-RAN) (such as network configurations conforming to O-RAN Alliance standards), or in virtualized radio access networks (vRAN) (also referred to as cloud radio access networks (C-RAN)) to facilitate scaling by decomposing base station functionality into multiple units that can be deployed independently.
[0042] Network nodes 110 of the wireless communication network 100 may include one or more central units (CUs), one or more distributed units (DUs), and / or one or more radio units (RUs). CUs may host one or more higher-layer control functions, such as Radio Resource Control (RRC) functions, Packet Data Convergence Protocol (PDCP) functions, and / or Service Data Adaptation Protocol (SDAP) functions, etc. DUs may host one or more of the Radio Link Control (RLC) layer, Media Access Control (MAC) layer, and / or one or more higher physical (PHY) layers, at least in part, according to functional splits (such as functional splits defined by 3GPP). In some examples, DUs may also host one or more lower PHY layer functions, such as Fast Fourier Transform (FFT), Inverse FFT (iFFT), beamforming, Physical Random Access Channel (PRACH) extraction and filtering, and / or scheduling of resources for one or more UEs 120, etc. RUs may host RF processing functions or lower PHY layer functions, such as FFT, iFFT, beamforming, or PRACH extraction and filtering, etc., according to functional splits (such as lower-layer functional splits). In this architecture, each RU can be operated to handle over-the-air (OTA) communications with one or more UE 120s.
[0043] In some aspects, a single network node 110 may include a combination of one or more Cu, one or more Du, and / or one or more RU. Additionally or alternatively, network node 110 may include one or more near real-time (near RT) RAN Intelligent Controllers (RICs) and / or one or more non-real-time (non-RT) RICs. In some examples, the CU, DU, and / or RU may be implemented as virtual units, such as Virtual Central Units (VCUs), Virtual Distributed Units (VDUs), or Virtual Radio Units (VRUs), etc. Virtual units may be implemented as virtual network functions, such as those associated with cloud deployments.
[0044] Some network nodes 110 (e.g., base stations, RUs, or TRPs) can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to the coverage area of network node 110 or to network node 110 itself, depending on the context in which the term is used. Network node 110 can support one or more (e.g., three) cells. In some examples, network node 110 can provide communication coverage for macro cells, pico cells, femto cells, or another type of cell. A macro cell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access by UE 120 with a service subscription. A pico cell can cover a relatively small geographic area and can allow unrestricted access by UE 120 with a service subscription. A femto cell can cover a relatively small geographic area (e.g., a residential area) and can allow restricted access by UE 120 associated with that femto cell (e.g., UE 120 in a Closed Subscriber Group (CSG)). The network node 110 used for a macro cell can be referred to as a macro network node. Network node 110 used for a picocell may be referred to as a pico network node. Network node 110 used for a femtocell may be referred to as a femto network node or a home network node. In some examples, the cell may not necessarily be stationary. For example, the geographical area of the cell may move depending on the location of the associated mobile network node 110 (e.g., a train, satellite base station, drone, or NTN network node).
[0045] The wireless communication network 100 can be a heterogeneous network, comprising different types of network nodes 110, such as macro network nodes, piconet nodes, femtonet nodes, relay network nodes, aggregation network nodes, and / or decomposition network nodes, etc. Figure 1 In the example shown, network node 110a can be a macro network node for macro cell 130a, network node 110b can be a pico network node for pico cell 130b, and network node 110c can be a femto network node for femto cell 130c. Various types of network nodes 110 can typically transmit at different power levels, serve different coverage areas, and / or have different effects on interference in the wireless communication network 100 compared to other types of network nodes 110. For example, macro network nodes can have high transmit power levels (e.g., 5 watts to 40 watts), while pico network nodes, femto network nodes, and relay network nodes can have lower transmit power levels (e.g., 0.1 watts to 2 watts).
[0046] In some examples, network node 110 may be, may include, or may operate as a RU, TRP, or base station communicating with one or more UEs 120 via a radio access link (which may be referred to as a "Uu" link). The radio access link may include a downlink and an uplink. "Downlink" (or "DL") refers to the communication direction from network node 110 to UE 120, and "uplink" (or "UL") refers to the communication direction from UE 120 to network node 110. Downlink channels may include one or more control channels and one or more data channels. Downlink control channels may be used to transmit downlink control information (DCI) (e.g., scheduling information, reference signals, and / or configuration information) from network node 110 to UE 120. Downlink data channels may be used to transmit downlink data (e.g., user data associated with UE 120) from network node 110 to UE 120. Downlink control channels may include one or more physical downlink control channels (PDCCH), and downlink data channels may include one or more physical downlink shared channels (PDSCH). The uplink channel may similarly include one or more control channels and one or more data channels. The uplink control channel can be used to transmit uplink control information (UCI) from UE 120 to network node 110 (e.g., transmitting corresponding reference signals and / or feedback with one or more downlinks). The uplink data channel can be used to transmit uplink data (e.g., user data associated with UE 120) from UE 120 to network node 110. The uplink control channel may include one or more physical uplink control channels (PUCCH), and the uplink data channel may include one or more physical uplink shared channels (PUSCH). The downlink and uplink may each include a set of resources on which network node 110 and UE 120 can communicate.
[0047] Downlink and uplink resources may include time-domain resources (frames, subframes, time slots, and / or symbols), frequency-domain resources (bands, component carriers, subcarriers, resource blocks, and / or resource elements), and / or spatial-domain resources (specific transmission directions and / or beam parameters). Frequency-domain resources in some bands may be subdivided into bandwidth portions (BWPs). A BWP may be a contiguous block of frequency-domain resources allocated to one or more UEs 120 (e.g., a contiguous block of resource blocks). A UE 120 may be configured with both an uplink BWP and a downlink BWP (where the uplink BWP and downlink BWP may be the same BWP or different BWPs). BWPs may be dynamically configured and / or reconfigured (e.g., by sending DCI configuration to one or more UEs 120 via network node 110), meaning that BWPs may be adjusted in real-time (or near real-time) based on changing network conditions in the wireless communication network 100 and / or based on the specific requirements of one or more UEs 120. This allows for more efficient use of available frequency domain resources in the wireless communication network 100, as fewer frequency domain resources can be allocated to the BWP for UE 120 (which reduces the number of frequency domain resources that UE 120 needs to monitor), thus allowing more frequency domain resources to be distributed across multiple UE 120s. Therefore, the BWP can also assist in the implementation of such UE 120s by facilitating the configuration of smaller bandwidths for communications performed by lower-capacity UE 120s.
[0048] As described above, in some aspects, the wireless communication network 100 may be an IAB network, may include an IAB network, or may be included in an IAB network. In an IAB network, at least one network node 110 is an anchor network node communicating with a core network. The anchor network node 110 may also be referred to as an IAB donor (or "IAB donor"). The anchor network node 110 may be connected to the core network via a wired backhaul link. For example, the Ng interface of the anchor network node 110 may terminate at the core network. Additionally or alternatively, the anchor network node 110 may be connected to one or more devices in the core network that provide core access and mobility management functions (AMF). An IAB network typically also includes multiple non-anchor network nodes 110, which may also be referred to as relay network nodes or simply IAB nodes (or "IAB-nodes"). Each non-anchor network node 110 can directly communicate with the anchor network node 110 via a wireless backhaul link to access the core network, or can indirectly communicate with the anchor network node 110 via one or more other non-anchor network nodes 110 and an associated wireless backhaul link forming a backhaul path to the core network. Some anchor network nodes 110 or other non-anchor network nodes 110 can also directly communicate with one or more UEs 120 via a wireless access link carrying access services. For example, network resources used for wireless communication (such as time resources, frequency resources, and / or spatial resources) can be shared between the access link and the backhaul link.
[0049] In some examples, any network node 110 relaying communication may be referred to as a relay network node, a relay station, or simply a repeater. A repeater may receive communications from an upstream station (e.g., another network node 110 or UE 120) and transmit communications to a downstream station (e.g., UE 120 or another network node 110). In this case, the wireless communication network 100 may include or be referred to as a "multi-hop network." Figure 1 In the example shown, network node 110d (e.g., a relay network node) can communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. Additionally or alternatively, UE 120 can be a relay station capable of relaying transmissions to or from other UE 120s, or can operate as such a relay station. UE 120 relaying communication can be referred to as a UE repeater or relay UE, etc.
[0050] UE 120 may be physically distributed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile. UE 120 may be, may include, or may be included in the following: access terminal, another terminal, mobile station, or subscriber unit. UE 120 may be, or may include, a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband and / or smart jewelry (such as a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device and / or a satellite radio), an XR device, a vehicle component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning System device or another type of positioning device), a UE function of a network node, and / or any other suitable device or function that can communicate via a wireless medium, or may be coupled to them.
[0051] UE 120 and / or network node 110 may include one or more chips, system-on-a-chip (SoC), chipsets, packages, or devices that individually or collectively constitute or include a processing system. The processing system includes processor (or “processing”) circuitry in the form of one or more processors, microprocessors, processing units (such as central processing units (CPUs), graphics processing units (GPUs), neural processing units (NPUs), and / or digital signal processors (DSPs)), processing blocks, application-specific integrated circuits (ASICs), programmable logic devices (PLDs) (such as field-programmable gate arrays (FPGAs)), or other discrete gate or transistor logic components or circuits (all of which are generally referred to herein individually as “processors” or collectively as “processors” or “processor circuitry”). One or more of these processors may be individually or collectively configured to perform the various functions or operations described herein. A group of processors that can be configured or configured to perform a set of functions may include a first processor that can be configured or configured to perform a first function in the set, and a second processor that can be configured or configured to perform a second function in the set, or may include the entire group of processors that are configured or configured to perform the set of functions.
[0052] The processing system may also include memory circuitry in the form of one or more memory devices, memory blocks, memory elements, or other discrete gate or transistor logic components or circuits, each of which may include tangible storage media such as random access memory (RAM) or read-only memory (ROM) or combinations thereof (all of which are generally referred to herein individually as "memory" or collectively as "memory" or "memory circuitry"). One or more of these memories may be coupled to one or more processors in the processor (e.g., operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) and may store processor-executable code (such as software) individually or collectively, which, when executed by one or more processors in the processor, may configure one or more processors in the processor to perform the various functions or operations described herein. Additionally or alternatively, in some examples, one or more processors in the processor may be pre-configured to perform the various functions or operations described herein without being configured by software. The processing system may also include or be coupled to one or more modems (such as Wi-Fi (e.g., IEEE compliant) modems or cellular (e.g., 3GPP 4G LTE, 5G, or 6G compliant) modems). In some embodiments, one or more processors of the processing system include or implement one or more modems among the modems. The processing system may also include, or be coupled to, multiple radio components (collectively, “radio components”), multiple RF chains, or multiple transceivers, each of which may in turn be coupled to one or more antennas among multiple antennas. In some embodiments, one or more processors of the processing system include or implement one or more of the radio components, RF chains, or transceivers. UE 120 may include, or may be included in, a housing that accommodates components associated with UE 120, including the processing system.
[0053] Some UEs 120 may be considered Machine Type Communication (MTC) UEs, Evolved or Enhanced Machine Type Communication (eMTC) UEs, Further Enhanced eMTC (feMTC) UEs, or Enhanced feMTC (efeMTC) UEs, or further evolutions thereof, all of which may be referred to simply as "MTC UEs". MTC UEs may be, may include, or may be included in or coupled with the following: robots, unmanned aerial vehicles, remote devices, sensors, instruments, monitors, and / or location tags. Some UEs 120 may be considered IoT devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. IoT UEs or NB-IoT devices may be, may include, or may be included in or coupled with the following: industrial machines, appliances, refrigerators, doorbell camera devices, home automation devices, and / or lighting fixtures, etc. Some UEs 120 may be considered customer premises equipment, which may include telecommunications equipment installed at a customer location (such as a home or office) to enable access to a service provider’s network (such as being included in or communicating with the wireless communication network 100).
[0054] Some UEs 120 can be categorized according to different categories associated with varying levels of complexity and / or capabilities. UEs 120 in the first category facilitate large-scale IoT within the wireless communication network 100 and offer lower complexity and / or cost compared to UEs 120 in the second category. UEs 120 in the second category may include mission-critical IoT devices capable of URLLC, enhanced mobile broadband (eMBB), and / or precise positioning within the wireless communication network 100, legacy UEs, baseline UEs, high-level UEs, advanced UEs, full-capability UEs, and / or premium UEs. UEs 120 in the third category may have intermediate-level complexity and / or capabilities (e.g., capabilities between first-category UEs 120 and second-capability UEs 120). UEs 120 in the third category may be referred to as reduced-capability UEs (“RedCap UEs”), intermediate-level UEs, NR lightweight UEs, and / or NR-Lite UEs, etc. RedCap UEs bridge the gap in capabilities and complexity between NB-IoT devices and / or eMTC UEs and mission-critical IoT devices and / or premium UEs. RedCap UEs can include, for example, wearable devices, IoT devices, industrial sensors, and / or cameras associated with limited bandwidth, power capacity, and / or transmission range. RedCap UEs can support healthcare environments, building automation, power distribution, process automation, transportation and logistics, and / or smart city deployments, among others.
[0055] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly with each other using sidelink communication (e.g., without communication through a network node 110 acting as an intermediary). As an example, UE 120a can directly send data, control information, or other signaling to UE 120e as sidelink communication. This contrasts with, for example, UE 120a first sending data to network node 110 in UL communication, and then that network node sending data to UE 120e in DL communication. In various examples, UE 120 can use peer-to-peer (P2P) communication protocols, device-to-device (D2D) communication protocols, vehicle-to-everything (V2X) communication protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, and / or vehicle-to-pedestrian (V2P) protocols), and / or mesh network communication protocols to send and receive sidelink communication. In some deployments and configurations, network node 110 may schedule and / or allocate resources for sidelink communication between UEs 120 in the wireless communication network 100. In some other deployments and configurations, UE 120 (instead of network node 110) may perform or cooperate with or negotiate with one or more other UEs to perform scheduling operations, resource selection operations, and / or other operations for sidelink communication.
[0056] In various examples, in addition to half-duplex operation, some network nodes and UEs in the wireless communication network 100, including network node 110 and UE 120, can also be configured for full-duplex operation. Network node 110 or UE 120 operating in half-duplex mode can perform only one of transmission or reception during a specific time resource period (such as a specific time slot, symbol, or other time period). Half-duplex operation may involve time division duplex (TDD), where the DL transmission of network node 110 and the UL transmission of UE 120 do not occur in the same time resource (i.e., the transmissions do not overlap in time). In contrast, network node 110 or UE 120 operating in full-duplex mode can transmit and receive communications concurrently (e.g., within the same time resource). By operating in full-duplex mode, network node 110 and / or UE 120 can generally increase the capacity of the network and radio access links. In some examples, full-duplex operation may involve frequency division duplex (FDD), in which network node 110 performs DL transmission in a first frequency band or on a first component carrier, and UE 120 performs transmission in a second frequency band or on a second component carrier, the second frequency band or the second component carrier being different from the first frequency band or the first component carrier, respectively. In some examples, full-duplex operation may be enabled for UE 120 but not for network node 110. For example, UE 120 may simultaneously transmit UL to the first network node 110 and receive DL transmissions from the second network node 110 in the same time resources. In some other examples, full-duplex operation may be enabled for network node 110 but not for UE 120. For example, network node 110 may simultaneously transmit DL to the first UE 120 and receive UL transmissions from the second UE 120 in the same time resources. In some other examples, full-duplex operation may be enabled for both network node 110 and UE 120.
[0057] In some examples, UE 120 and network node 110 can perform MIMO communication. "MIMO" generally refers to the simultaneous transmission or reception of multiple signals (such as multiple layers or multiple data streams) using the same time and frequency resources. MIMO techniques typically utilize multipath propagation. MIMO can be implemented using various spatial processing or spatial multiplexing operations. In some examples, MIMO can support simultaneous transmission to multiple receivers, which is called multi-user MIMO (MU-MIMO). Some RATs can employ advanced MIMO techniques such as mTRP operations (including redundant transmission or reception on multiple TRPs), reciprocity in the time or frequency domain, single-frequency network (SFN) transmission, or noncoherent joint transmission (NCJT).
[0058] In some respects, the UE (e.g., UE 120) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive a first beam report configuration and a second beam report configuration; and use the second beam report configuration to send a second beam report that is at least partially based on the first beam report, wherein the first beam report uses the first beam report configuration and the second beam report is initiated by the UE.
[0059] In some aspects, the communication manager 140 may receive beam report configurations associated with a first measurement reference signal resource set and a second measurement reference signal resource set; send a first beam report for the first measurement reference signal resource set; and send a second beam report for the second measurement reference signal resource set after a switch from the first measurement reference signal resource set. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0060] As indicated above, Figure 1 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 1 The examples described are different.
[0061] Figure 2 This is a diagram illustrating communication between an example network node 110 and an example UE 120 in a wireless network according to the present disclosure.
[0062] like Figure 2 As shown, network node 110 may include a data source 212, a transmit processor 214, a transmit (TX) MIMO processor 216, a set of modems 232 (shown as 232a to 232t, where t≥1), a set of antennas 234 (shown as 234a to 234v, where v≥1), a MIMO detector 236, a receive processor 238, a data sink 239, a controller / processor 240, a memory 242, a communication unit 244, a scheduler 246, and / or a communication manager, etc. In some configurations, one or a combination of antennas 234, modems 232, MIMO detectors 236, receive processors 238, transmit processors 214, and / or TX MIMO processors 216 may be included in the transceiver of network node 110. The transceiver may be under the control of and used by one or more processors (such as controller / processor 240), and in some respects, may perform aspects of the methods, procedures and / or operations described herein in conjunction with processor-readable code stored in memory 242. In some respects, network node 110 may include one or more interfaces, communication components and / or other components that facilitate communication with UE 120 or another network node.
[0063] The terms “processor,” “controller,” or “controller / processor” can refer to one or more controllers and / or one or more processors. For example, references to “processor,” “controller / processor,” etc. (in the singular) should be understood as referring to a combination of… Figure 2 The processor described refers to any one or more processors, such as a single processor or a combination of multiple different processors. The reference to "one or more processors" should be understood as a combination of references. Figure 2 Any one or more processors described herein. For example, one or more processors of network node 110 may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and / or controller / processor 240. Similarly, one or more processors of UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and / or controller / processor 280.
[0064] In some aspects, a single processor can perform all operations described as being performed by one or more processors. In some aspects, a first set of one or more processors can perform a first operation described as being performed by that one or more processors, and a second set of one or more processors can perform a second operation described as being performed by that one or more processors. The processors in the first set and the processors in the second set can be from the same set of processors or can be from different sets of processors. The reference to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as those in combination. Figure 2 The memory described. For example, an operation described as being performed by one or more memories can be performed by the same subset of the one or more memories or by different subsets of the one or more memories.
[0065] For downlink communication from network node 110 to UE 120, transmitting processor 214 may receive data (“downlink data”) intended for use by UE 120 (or a set of UEs including UE 120) from data source 212 (such as a data pipeline or data queue). In some examples, transmitting processor 214 may select one or more MCSs for UE 120 based on one or more Channel Quality Indicators (CQIs) received from UE 120. Network node 110 may process the data (e.g., including encoding the data) based on the MCS selected for UE 120 for transmission to UE 120 on the downlink, thereby generating data symbols. Transmitting processor 214 may process system information (e.g., semi-static resource partitioning information (SRPI)) and / or control information (e.g., CQI requests, grants, and / or upper-layer signaling) and provide overhead symbols and / or control symbols. The transmitting processor 214 can generate reference symbols for reference signals (e.g., cell-specific reference signal (CRS), demodulation reference signal (DMRS), or CSI-RS) and / or synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)).
[0066] The TX MIMO processor 216 can perform space processing (e.g., pre-decoding) on data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can output a set of symbol streams (e.g., T A set of output symbol streams is provided to modem 232. For example, each output symbol stream may be provided to a corresponding modulator component (shown as MOD) of modem 232. Each modem 232 may use the corresponding modulator component to process (e.g., modulate) the corresponding output symbol stream (e.g., for orthogonal frequency division multiplexing (OFDM)) to obtain an output sample stream. Each modem 232 may further use the corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain a time-domain downlink signal. Modems 232a to 232t may transmit the downlink signal set (e.g., ...) together via the corresponding set of antennas 234. T (One downlink signal).
[0067] Downlink signaling may include DCI communication, MAC control element (MAC CE) communication, RRC communication, downlink reference signaling, or another type of downlink communication. Downlink signaling may be transmitted on the PDCCH, PDSCH, and / or another downlink channel. Downlink signaling may carry one or more transport blocks (TBs) of data. A TB may be a data unit transmitted via the air interface in the wireless communication network 100. A data stream (e.g., from data source 212) may be encoded into multiple TBs for transmission via the air interface. The number of TBs used to carry data associated with a particular data stream may be associated with a TB size shared by multiple TBs. The TB size may be based on the radio channel conditions of the air interface, the MCS used to encode the data, downlink resources allocated for transmitting data, and / or other parameters, or otherwise associated with them. Generally, a larger TB size allows for a larger amount of data to be transmitted in a single transmission, reducing signaling overhead. However, a larger TB size may be more prone to transmission and / or reception errors than a smaller TB size, but such errors can be mitigated through more robust error correction techniques.
[0068] For uplink communication from UE 120 to network node 110, the uplink signal from UE 120 may be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232, shown as DEMOD), detected by MIMO detector 236 (e.g., receive (Rx) MIMO processor) where applicable, and / or further processed by receive processor 238 to obtain decoded data and / or control information. Receive processor 238 may provide the decoded data to data sink 239 (which may be a data pipeline, data queue, and / or another type of data sink) and provide the decoded control information to processors such as controller / processor 240.
[0069] Network node 110 may use scheduler 246 to schedule one or more UEs 120 for downlink or uplink communication. In some aspects, scheduler 246 may use DCI to dynamically schedule DL transmissions to and / or UL transmissions from UE 120. In some examples, scheduler 246 may allocate repetitive time-domain and / or frequency-domain resources that UE 120 may use to transmit and / or receive communication using RRC configuration (e.g., semi-static configuration), for example, to perform semi-persistent scheduling (SPS) or to configure configuration grant (CG) for UE 120.
[0070] One or more of the following may be included in the RF chain of network node 110: transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, and / or controller / processor 240. The RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs), and / or other devices for converting between analog signals (such as those used for transmission or reception via an air interface) and digital signals (such as those used for processing by one or more processors of network node 110). In some aspects, the RF chain may be a transceiver of network node 110, or may be included in such a transceiver.
[0071] In some examples, network node 110 may use communication unit 244 to communicate with the core network and / or other network nodes. Communication unit 244 may support wired and / or wireless communication protocols and / or connections, such as Ethernet, fiber optic, Common Public Radio Interface (CPRI), and / or wired or wireless backhaul, etc. Network node 110 may use communication unit 244 to send and / or receive data associated with UE 120, or to perform network control signaling, etc. Communication unit 244 may include transceivers and / or interfaces, such as network interfaces.
[0072] UE 120 may include a collection of antennas 252 (shown as antennas 252a to 252r, where r ≥ 1), a collection of modems 254 (shown as modems 254a to 254u, where u ≥ 1), a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, a memory 282, and / or a communication manager 140, etc. One or more components of UE 120 may be included in housing 284. In some aspects, one or a combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, or TX MIMO processor 266 may be included in a transceiver included in UE 120. The transceiver may be under the control of and used by one or more processors (such as controller / processor 280), and in some respects, may perform aspects of the methods, procedures, or operations described herein in conjunction with processor-readable code stored in memory 282. In some respects, UE 120 may include another interface, another communication component, and / or another component that facilitates communication with network node 110 and / or another UE 120.
[0073] For downlink communication from network node 110 to UE 120, the set of antennas 252 can receive downlink communication or signals from network node 110, and can receive the set of downlink signals (e.g., R Each received signal is provided to a set of modems 254. For example, each received signal may be provided to a corresponding demodulator component (shown as DEMOD) of modem 254. Each modem 254 may use the corresponding demodulator component to condition (e.g., filter, amplify, down-convert, and / or digitize) the received signal to obtain an input sample. Each modem 254 may use the corresponding demodulator component to further demodulate or process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 may obtain the received symbols from the set of modems 254, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. Receiver processor 258 may process (e.g., decode) the detected symbols, provide the decoded data for UE 120 to data sink 260 (which may include data pipelines, data queues, and / or applications executed on UE 120), and provide the decoded control information and system information to controller / processor 280.
[0074] For uplink communication from UE 120 to network node 110, the transmitting processor 264 may receive and process data (“uplink data”) from data source 262 (such as data pipelines, data queues, and / or applications running on UE 120) and control information from controller / processor 280. The control information may include one or more parameters, feedback, one or more signal measurements, and / or other types of control information. In some aspects, the receiving processor 258 and / or controller / processor 280 may determine one or more parameters related to the transmission of uplink communication for received signals (such as those received from network node 110 or another UE). One or more parameters may include RSRP parameters, Received Signal Strength Indicator (RSSI) parameters, Reference Signal Receive Quality (RSRQ) parameters, CQI parameters, or Transmit Power Control (TPC) parameters, etc. The control information may include indications of RSRP parameters, RSSI parameters, RSRQ parameters, CQI parameters, TPC parameters, and / or other parameters. The control information may facilitate parameter selection and / or scheduling for UE 120 by network node 110.
[0075] Transmit processor 264 can generate reference symbols for one or more reference signals, such as uplink DMRS, uplink sounding reference signal (SRS), and / or another type of reference signal. Symbols from transmit processor 264 can be pre-decoded by TX MIMO processor 266 where applicable, and further processed by a set of modems 254 (e.g., for DFT-s-OFDM or CP-OFDM). TX MIMO processor 266 can perform spatial processing (e.g., pre-decoding) on data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can output a set of symbol streams (e.g., ... U A set of output symbol streams is provided to modem 254. For example, each output symbol stream may be provided to a corresponding modulator component (shown as MOD) of modem 254. Each modem 254 may use the corresponding modulator component to process (e.g., modulate) the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 254 may further use the corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain an uplink signal.
[0076] Modems 254a to 254u can transmit uplink signal sets (e.g., via corresponding sets of antennas 252) R One uplink signal or U Uplink signals may include UCI communication, MAC CE communication, RRC communication, or another type of uplink communication. Uplink signals may be transmitted on PUSCH, PUCCH, and / or another type of uplink channel. Uplink signals may carry one or more TBs of data. Sidelink data and control transmission (i.e., transmission directly between two or more UEs 120) may typically use techniques similar to those described for uplink data and control transmission, and may use sidelink-specific channels such as the Physical Sidelink Shared Channel (PSSCH), Physical Sidelink Control Channel (PSCCH), and / or Physical Sidelink Feedback Channel (PSFCH).
[0077] One or more antennas in the set of antennas 252 or the set of antennas 234 may include one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, etc., or may be included in one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, or with one or more transmitting or receiving components (such as...) Figure 2 An antenna module is a combination of one or more antenna elements coupled to one or more components. As used herein, "antenna" can mean one or more antennas, one or more antenna panels, one or more antenna groups, one or more collections of antenna elements, or one or more antenna arrays. "Antenna panel" can mean a group of antennas (such as antenna elements) arranged in an array or panel that can facilitate beamforming by manipulating the parameters of that group of antennas. "Antenna module" can mean a circuit that includes one or more antennas, and may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.
[0078] In some examples, each antenna element of antenna 234 or antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit the cross-polarized signal. Antenna elements may include patch antennas, dipole antennas, and / or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. The spacing between antenna elements can allow signals with a desired wavelength transmitted individually by the antenna elements to interact or interfere (e.g., to form a desired beam) in various directions. For example, given a desired wavelength or frequency range, the spacing may provide a quarter wavelength, half a wavelength, or another fraction of the wavelength between adjacent antenna elements to allow desired constructive and destructive interference modes of signals transmitted by individual antenna elements within that desired range.
[0079] The amplitude and / or phase of signals transmitted via antenna elements and / or sub-elements can be modulated and (e.g., by manipulating phase shifts, phase offsets, and / or amplitudes) shifted relative to each other to generate one or more beams; this is known as beamforming. The term "beam" can refer to the directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction. "Beam" can also generally refer to the direction associated with such directional signal transmission, the set of directional resources associated with the signal transmission (e.g., angle of arrival, horizontal direction, and / or vertical direction), and / or a set of parameters indicating one or more aspects of the directional signal, the direction associated with the signal, and / or the set of directional resources associated with the signal. In some implementations, antenna elements can be individually selected or deselected for the directional transmission of a signal (or multiple signals) by controlling the amplitude of one or more corresponding amplifiers and / or the phase of the signal to form one or more beams. The shape of the beam (such as amplitude, width, and / or the presence of sidelobes) and / or the direction of the beam (such as the angle of the beam relative to the surface of the antenna array) can be dynamically controlled by modifying the phase shifts, phase offsets, and / or amplitudes of multiple signals relative to each other.
[0080] Different UEs 120 or network nodes 110 may include different numbers of antenna elements. For example, UE 120 may include a single antenna element, two antenna elements, four antenna elements, eight antenna elements, or different numbers of antenna elements. As another example, network node 110 may include eight antenna elements, 24 antenna elements, 64 antenna elements, 128 antenna elements, or different numbers of antenna elements. Generally speaking, a larger number of antenna elements provides increased control over the parameters used for beamforming compared to a smaller number of antenna elements, while a smaller number of antenna elements may be less complex to implement and can use less power. Multiple antenna elements can support multi-layer transmission, in which the same time and frequency resources are used to utilize spatial multiplexing to transmit a first layer of communication (which may include a first data stream) and a second layer of communication (which may include a second data stream).
[0081] Although Figure 2 The boxes in the diagram are illustrated as different components, but the functions described above with respect to these boxes may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.
[0082] Figure 3This is an illustration of an example disaggregated base station architecture 300 according to the present disclosure. One or more components of the example disaggregated base station architecture 300 may be one or more network nodes (such as one or more network nodes 110), may include, or may be included in one or more network nodes. The disaggregated base station architecture 300 may include a CU 310, which may communicate directly with the core network 320 via a backhaul link, or may communicate indirectly with the core network 320 via one or more disaggregated control units (such as non-RT RIC 350 and / or near-RT RIC 370 associated with a Service Management and Orchestration (SMO) framework 360 (e.g., via an E2 link)). The CU 310 may communicate with one or more DU 330 via a corresponding midhaul link (such as via an F1 interface). Each DU 330 may communicate with one or more RU 340 via a corresponding fronthaul link. Each RU 340 may communicate with one or more UE 120 via a corresponding RF access link. In some deployments, UE 120 can be served by multiple RU 340s simultaneously.
[0083] Each component in the components of the decomposed base station architecture 300 (including CU 310, DU 330, RU 340, near-RT RIC 370, non-RT RIC 350, and SMO frame 360) may include one or more interfaces or may be coupled to one or more interfaces for receiving or transmitting signals, such as data or information, via wired or wireless transmission media.
[0084] In some respects, the CU 310 can be logically divided into one or more CU user plane (CU-UP) units and one or more CU control plane (CU-CP) units. When implemented in an O-RAN configuration, the CU-UP units can communicate bidirectionally with the CU-CP units via an interface such as an E1 interface. The CU 310 can be deployed to communicate with one or more DU 330s for network control and signaling, as needed. Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RU 340s. For example, the DU 330 may host various layers, such as the RLC layer, MAC layer, or one or more PHY layers (such as one or more high PHY layers or one or more low PHY layers). Each layer (which may also be referred to as a module) can be implemented using an interface for signaling to other layers (and modules) hosted by the DU 330, or for signaling to control functions hosted by the CU 310. Each RU 340 may implement lower-layer functionality. In some respects, the real-time and non-real-time aspects of communication with the control plane and user plane of the RU 340 can be controlled by the corresponding DU 330.
[0085] The SMO framework 360 supports RAN deployment and provisioning for both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 360 supports the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, the SMO framework 360 can interact with cloud computing platforms such as the Open Cloud (O-Cloud) platform 390 to perform network element lifecycle management (such as instantiating virtualized network elements) via cloud computing platform interfaces such as the O2 interface. Virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 350, and / or near-RT RIC 370. In some aspects, the SMO framework 360 can communicate with hardware aspects of the 4G RAN, 5G NR RAN, and / or 6G RAN (such as the Open eNB (O-eNB) 380) via the O1 interface. Additionally or alternatively, the SMO framework 360 can communicate directly with each of one or more RUs 340 via the corresponding O1 interface. In some deployments, this configuration enables each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0086] The non-RT RIC 350 may include or implement logic functions that enable non-real-time control and optimization of RAN elements and resources, including AI / ML workflows for model training and updates, and / or policy-based guidance of applications and / or features in the near-RT RIC 370. The non-RT RIC 350 may be coupled to or communicate with the near-RT RIC 370, such as via an A1 interface. The near-RT RIC 370 may include or implement logic functions that enable near real-time control and optimization of RAN elements and resources via an interface, such as an E2 interface, through data collection and action, connecting one or more CU 310s, one or more DU 330s, and / or O-eNBs to the near-RT RIC 370.
[0087] In some aspects, to generate AI / ML models to be deployed in the near-RT RIC 370, the non-RT RIC 350 may receive parameters or external enrichment information from an external server. This information can be utilized by the near-RT RIC 370 and can be received from non-network data sources or network functions at the SMO framework 360 or the non-RT RIC 350. In some examples, the non-RT RIC 350 or near-RT RIC 370 may modulate RAN behavior or performance. For example, the non-RT RIC 350 may monitor long-term trends and patterns in performance and may perform corrective actions using AI / ML models via the SMO framework 360 (such as reconfiguration via the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).
[0088] As indicated above, Figure 3 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 3 The examples described are different.
[0089] Figure 1 , Figure 2 or Figure 3 Network node 110, its controller / processor 240, UE 120, UE 120's controller / processor 280, CU 310, DU 330, RU 340, or any other component may implement one or more techniques associated with UE-initiated beamforming adaptation or perform one or more operations associated with UE-initiated beamforming adaptation, as described in more detail elsewhere herein. For example, network node 110's controller / processor 240, UE 120's controller / processor 280, CU 310, DU 330, RU 340, or any other component may implement one or more techniques associated with UE-initiated beamforming adaptation or perform one or more operations associated with UE-initiated beamforming adaptation, as described in more detail elsewhere herein. Figure 2 Any other component, CU 310, DU 330, or RU 340 can perform or direct, for example... Figure 9 The process 900 Figure 10The operation of process 1000 or other processes as described herein (alone or in combination with one or more other processors). Memory 242 may store data and program code for network node 110, CU 310, DU 330, or RU 340. Memory 282 may store data and program code for UE 120. In some examples, memory 242 or memory 282 may include a non-transitory computer-readable medium storing a set of instructions (e.g., code or program code) for wireless communication. Memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same or different types). Memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same or different types). For example, the set of instructions may be executed by one or more processors of network node 110, UE 120, CU 310, DU 330, or RU 340 (e.g., directly, or after compilation, transformation, or interpretation). Figure 9 The process 900 Figure 10 The process 1000 or other processes as described herein. In some examples, the execution instructions may include run instructions, transform instructions, compile instructions and / or interpret instructions, etc.
[0090] In some aspects, the UE (e.g., UE 120) includes components for receiving a first beam report configuration and a second beam report configuration; and / or components for the UE to transmit a second beam report, at least in part based on the first beam report, using the second beam report configuration and the second beam report being initiated by the UE.
[0091] In some aspects, the UE includes components for receiving beam report configurations associated with a first measurement reference signal resource set and a second measurement reference signal resource set; components for transmitting a first beam report for the first measurement reference signal resource set; and / or components for transmitting a second beam report for the second measurement reference signal resource set after a handover from the first measurement reference signal resource set. Components enabling the UE to perform the operations described herein may include, for example, one or more of the following: a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.
[0092] As indicated above, Figure 3 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 3 The examples described are different.
[0093] Figure 4 These are illustrations of examples 400, 410, and 420 illustrating the CSI-RS beam management process according to this disclosure. Figure 4 As shown, Examples 400, 410, and 420 include UE 120 communicating with network node 110 in a wireless network (e.g., wireless network 100). However, Figure 4 The device shown is provided as an example, and the wireless network can support communication and beam management between other devices (e.g., between UE 120 and network node 110 or TRP, between mobile terminal node and control node, between IAB child node and IAB parent node, and / or between scheduled node and scheduling node). In some aspects, UE 120 and network node 110 may be in a connected state (e.g., RRC connected state).
[0094] like Figure 4 As shown, Example 400 may include a network node 110 (e.g., one or more network node devices such as RU, DU, and / or CU) communicating with UE 120 to perform beam management using CSI-RS. Example 400 depicts a first beam management procedure (e.g., P1 CSI-RS beam management). The first beam management procedure may be referred to as a beam selection procedure, an initial beam acquisition procedure, a beam scanning procedure, a cell search procedure, and / or a beam search procedure. Figure 4 As shown in Example 400, CSI-RS can be configured to be transmitted from network node 110 to UE 120. CSI-RS can be configured to be periodic (e.g., using RRC signaling), semi-persistent (e.g., using MAC CE signaling), and / or non-periodic (e.g., using DCI).
[0095] The first beam management process may include network node 110 performing beam scanning on multiple transmit (Tx) beams. Network node 110 may use each transmit beam for beam management to transmit CSI-RS. To enable UE 120 to perform receive (Rx) beam scanning, the network node may use the transmit beams to transmit (e.g., with repetition) each CSI-RS multiple times within the same RS resource set, allowing UE 120 to scan the receive beams in several transmit instances. For example, if network node 110 has a set of N transmit beams and UE 120 has a set of M receive beams, CSI-RS may be transmitted M times on each of the N transmit beams, allowing UE 120 to receive M instances of CSI-RS per transmit beam. In other words, for each transmit beam of network node 110, UE 120 may perform beam scanning of UE 120's receive beams. Therefore, the first beam management procedure enables UE 120 to measure CSI-RS on different transmit beams using different receive beams to support the selection of beam pairs for the transmit beam of network node 110 / receive beam of UE 120. UE 120 may report the measurements to network node 110 so that network node 110 can select one or more beam pairs for communication between network node 110 and UE 120. Although Example 400 has been described in conjunction with CSI-RS, the first beam management procedure may also use synchronization signal blocks (SSBs) to perform beam management in a similar manner as described above.
[0096] like Figure 4 As shown, Example 410 may include network node 110 and UE 120 communicating to perform beam management using CSI-RS. Example 410 depicts a second beam management procedure (e.g., P2 CSI-RS beam management). This second beam management procedure may be referred to as a beam refinement procedure, a network node beam refinement procedure, a TRP beam refinement procedure, and / or a transmit beam refinement procedure. Figure 4As shown in Example 410, CSI-RS can be configured to be transmitted from network node 110 to UE 120. The CSI-RS can be configured to be aperiodic (e.g., using DCI). A second beam management procedure may include network node 110 performing beam scanning on one or more transmit beams. The one or more transmit beams may be a subset of all transmit beams associated with network node 110 (e.g., determined at least in part based on measurements reported by UE 120 in conjunction with the first beam management procedure). Network node 110 may transmit CSI-RS using each of the one or more transmit beams used for beam management. UE 120 may measure each CSI-RS using a single (e.g., the same) receive beam (e.g., determined at least in part based on measurements performed in conjunction with the first beam management procedure). This second beam management procedure enables network node 110 to select the optimal transmit beam at least in part based on (e.g., measurements taken by UE 120 using a single receive beam) the measurements of CSI-RS reported by UE 120.
[0097] like Figure 4 As shown, Example 420 depicts a third beam management process (e.g., P3 CSI-RS beam management). This third beam management process may be referred to as a beam refinement process, a UE beam refinement process, and / or a receive beam refinement process. Figure 4 As shown in Example 420, one or more CSI-RS can be configured to be transmitted from network node 110 to UE 120. The CSI-RS can be configured to be non-periodic (e.g., using DCI). The third beam management procedure may include network node 110 transmitting one or more CSI-RS using a single transmit beam (e.g., determined at least in part based on measurements reported by UE 120 in conjunction with the first beam management procedure and / or the second beam management procedure). To enable UE 120 to perform receive beam scanning, the network node may transmit (e.g., with repetition) CSI-RS multiple times within the same RS resource set using the transmit beam, allowing UE 120 to scan one or more receive beams in several transmission instances. The one or more receive beams may be a subset of all receive beams associated with UE 120 (e.g., determined at least in part based on measurements performed in conjunction with the first beam management procedure and / or the second beam management procedure). This third beam management process enables network node 110 and / or UE 120 to select the optimal receive beam based at least in part on reported measurements received from UE 120 (e.g., reported measurements of the CSI-RS of the transmit beam using one or more receive beams).
[0098] However, beam management involves decision-making and signaling by network entities, which increases latency. In some ways, the UE can initiate beam reporting (CSI reports). For example, the UE can detect beam events such as RSRP falling below a threshold, SINR falling below a threshold, or beam failure. The UE can send beam reports or request beam management based at least in part on the detection of beam events. This UE-initiated reporting reduces the latency and overhead involved in network requests for beam reporting. However, some events or decision-making still increase latency.
[0099] As indicated above, Figure 4 This is provided as an example of a beam management process. Other examples of beam management processes can be found in relation to [the relevant documentation / information]. Figure 4 The examples described are different. For example, UE 120 and network node 110 may perform the third beam management procedure before performing the second beam management procedure, and / or UE 120 and network node 110 may perform a similar beam management procedure to select the UE transmit beam.
[0100] Figure 5 This is an illustration of example 500 of UE-based beam reporting adaptation according to this disclosure.
[0101] The UE may receive a first configuration for a first set of first beam reporting and / or reference signal resources (e.g., CSI-RS resources) and a second configuration for a second set of second beam reporting and / or reference signal resources (e.g., CSI-RS resources). A network entity may initiate a first beam report. The UE may measure the CSI-RS from the first set of CSI-RS resources and send the first beam report.
[0102] Based on the various aspects described herein, the UE can dynamically initiate a second beam report, at least in part, based on the first beam report. The second beam report may involve measurements of a second set of CSI-RS resources. In one example, the UE can dynamically initiate a second beam report when at least one transmitted beam corresponding to the second set of CSI-RS resources is better (e.g., greater signal strength, greater signal quality) than the best (e.g., maximum signal strength, maximum signal quality) transmitted beam corresponding to the first set of CSI-RS resources. This determination can be made when measuring the first set of CSI-RS resources. Initiating a second beam report may include sending a request to a network entity to initiate the second beam report. By dynamically initiating a second beam report based on the first beam report, the UE saves signaling resources and reduces the latency of stopping or starting beam reporting.
[0103] Example 500 illustrates a first reference signal (RS) resource set 502 for a first beam reporting and a second RS resource set 504 for a second beam reporting. The RS resource sets may include CSI-RS resource sets. The first RS resource set 502 can be configured via a first configuration, and the second RS resource set 504 can be configured via a second configuration.
[0104] The UE can receive a first configuration and a second configuration. The first beam report may include periodic measurements and reports, as shown in Example 500 with a periodic reference signal and beam report. The UE can receive a reference signal 506 from a first RS resource set 502. The UE can measure the reference signal 506 and send a first beam report 508. The first beam report may be initiated by a network entity.
[0105] The UE may initiate a second beam report based at least in part on measurements of the transmit beams of the first RS resource set 502. For example, the UE may initiate a second beam report if the RSRP of at least one transmit beam corresponding to the second RS resource set 504 is better than the RSRP of the best transmit beam corresponding to the first RS resource set 504. In another example, the UE may initiate a second beam report if the RSRP of the best transmit beam corresponding to the first RS resource set 504 is below a threshold. The network entity may send the second RS resource set 504 based at least in part on a UE request from the UE or at least in part on receiving the first beam report 508. The request may indicate a configuration ID of a second configuration. The UE may measure a reference signal 510 of the second RS resource set 504 and send a second beam report 512. The second RS resource set 504 may correspond to a set of candidate beams within the beam span of, for example, a second best reference signal (e.g., a second best measurement for the SSB).
[0106] In some respects, the second beam report may begin at a time offset 514 after the first beam report 508 has been sent. The time offset 514 may be between the first beam report 508 and the reference signal 510 of the second RS set 504. The network entity may configure the time offset 514 between the two beam reports before the second beam report becomes valid.
[0107] As indicated above, Figure 5 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 5 The examples described are different.
[0108] Figure 6 This is an illustration of example 600 associated with transmitting a second beam report based on a first beam report, according to this disclosure. Figure 6As shown, network entity 610 (e.g., network node 110) and UE 620 (e.g., UE 120) can communicate with each other via a wireless network (e.g., wireless communication network 100).
[0109] As shown by reference numeral 625, network entity 610 may send a first beam report configuration and a second beam report configuration. Network entity 610 may initiate a first beam report with the first beam report configuration. The first beam report may include a periodic reference signal. As shown by reference numeral 630, network entity 610 may send a reference signal (e.g., CSI-RS). The reference signal may originate from a first RS resource set (e.g., a CSI-RS resource set). UE 620 may measure this reference signal. As shown by reference numeral 635, network entity 610 may send a first beam report that is at least partially based on the measurement.
[0110] As shown by reference numeral 640 in the attached figure, UE 620 can determine that the transmit beam corresponding to the second RS resource set is superior to the transmit beam corresponding to the first RS resource set. That is, the transmit beam corresponding to the second RS resource set can provide a greater signal or quality than any beam corresponding to the first RS resource set. This determination can be based at least in part on the most recent measurement of the transmit beam corresponding to the first RS resource set. That is, the measurements and beam reports for the second RS resource set can be determined at least in part based on the measurements and beam reports for the first RS resource set.
[0111] As shown by reference numeral 645, network entity 610 may transmit a reference signal from a second RS resource set. UE 620 may measure the reference signal and initiate a second beam report, which may include the measurement of the reference signal from the second RS resource set. UE 620 may send a request to initiate a second beam report, and network entity 610 may respond using an indication to continue the second beam report. As shown by reference numeral 650, UE 620 may transmit a second beam report that is at least partially based on the measurement of the reference signal from the second RS resource set. In some aspects, UE 620 may transmit the second beam report at a time offset of 646 after transmitting the first beam report. By triggering a second beam report based on the first beam report, UE 620 may optimize the transmission beam selection to further reduce latency.
[0112] As indicated above, Figure 6 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 6 The examples described are different.
[0113] Figure 7 This is a diagram illustrating example 700 associated with a set of switching measurement RS resources according to this disclosure.
[0114] The UE can receive configurations for multiple measurement RS resource sets. Network entity 610 can use a first RS resource set to initiate a first beam report. UE 620 can measure a reference signal from the first RS resource set and send the first beam report. In some aspects, the UE can switch from the first RS resource set to a second RS resource set to improve beam selection while reducing latency. UE 620 can switch to the second RS resource set at least in part based on the first beam report. By switching from the first RS set to the second RS set at least in part based on the first beam report, UE 620 can optimize transmit beam selection to further reduce latency.
[0115] In one example, a first RS resource set (e.g., a CSI-RS resource set) may correspond to, for example, a set of candidate beams within the beam span of the optimal SSB. A second RS resource set (e.g., a CSI-RS resource set) may correspond to, for example, a set of candidate beams within the beam span of the second optimal SSB. In some aspects, when at least one transmit beam corresponding to the second CSI-RS resource set is superior to the optimal transmit beam corresponding to the first CSI-RS resource set, the UE 620 may initiate a report for the second CSI-RS resource set (and cease reporting for the first CSI-RS resource set).
[0116] Example 700 illustrates a first RS set 702 and a second RS set 704. A network entity has already used the first RS set 702 to initiate a first beam report. That is, the first RS set 702 is measured, and the second RS set 704 is not measured. The UE may measure a reference signal from RS set 702 and send a first beam report 706. The UE may switch to a second beam report, wherein the second RS set 704 is measured at least in part based on the first beam report 706. This may involve comparing the transmitted beam corresponding to the first RS set 702 with the transmitted beam corresponding to the second RS set 704. The UE may measure a reference signal from the second RS set 704 and send an associated beam report 710.
[0117] As indicated above, Figure 7 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 7 The examples described are different.
[0118] Figure 8 This is a diagram illustrating an example 800 associated with a set of switching measurement RS resources according to this disclosure.
[0119] Example 800 illustrates a measurement RS resource set handover. As shown by reference numeral 825, network entity 610 may send a beam report configuration. The beam report configuration may be associated with a first RS resource set (e.g., a first CSI-RS resource set) and a second RS resource set (e.g., a second CSI-RS resource set). Network entity 610 may utilize the first CSI-RS resource set to initiate a first beam report. The first beam report may include periodic CSI-RS. As shown by reference numeral 830, network entity 610 may send a reference signal (e.g., CSI-RS) from the first CSI-RS resource set. UE 620 may measure this reference signal. As shown by reference numeral 835, network entity 610 may send a first beam report based on the measurement.
[0120] As shown by reference numeral 840 in the attached figure, UE 620 can determine the CSI-RS resource set to be switched. UE 620 can determine that the transmit beam corresponding to the second CSI-RS resource set will be superior to the transmit beam corresponding to the first CSI-RS resource set. That is, the transmit beam corresponding to the second CSI-RS resource set can provide a greater signal or quality than any beam corresponding to the first CSI-RS resource set.
[0121] As shown by reference numeral 845, network entity 610 may transmit CSI-RS from a second CSI-RS resource set. UE 620 may measure a reference signal and initiate a second beam report, which may include measurements of the reference signal from the second CSI-RS resource set. UE 620 may send a request for a second beam report (initiating a second beam report), and network entity 610 may respond using an indication to continue the second beam report. As shown by reference numeral 850, UE 620 may transmit a second beam report that is at least partially based on measurements of CSI-RS from the second RS resource set. In some aspects, UE 620 may transmit the second beam report at a time offset of 646 after transmitting the first beam report. By switching the CSI-RS resource set based on the first beam report, UE 620 can optimize the transmission beam selection to further reduce latency.
[0122] As indicated above, Figure 8 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 8 The examples described are different.
[0123] Figure 9 This is a diagram illustrating an example process 900 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 900 is an example in which a device or UE (e.g., UE 120, UE 620) performs operations associated with UE-initiated beam reporting adaptation.
[0124] like Figure 9 As shown, in some aspects, process 900 may include receiving a first beam report configuration and a second beam report configuration (block 910). For example, the UE (e.g., using...) Figure 11 The described receiving component 1102 and / or communication manager 1106 can receive a first beam report configuration and a second beam report configuration, as described above.
[0125] like Figure 9 As further shown, in some aspects, process 900 may include sending a second beam report using a second beam report configuration, the second beam report being initiated by the UE and at least partially based on a first beam report using a first beam report configuration (box 920). For example, the UE (e.g., using...) Figure 11 The transmission component 1104 and / or communication manager 1106 described may use a second beam report configuration to transmit a second beam report that is initiated by the UE and is at least in part based on a first beam report using a first beam report configuration, as described above.
[0126] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.
[0127] In a first aspect, the first beam reporting configuration is associated with a first measurement reference signal resource set, and the second beam reporting configuration is associated with a second measurement reference signal resource set.
[0128] In a second aspect, either alone or in combination with the first aspect, transmitting the second beam report, which is at least partially based on the first beam report, includes transmitting the second beam report based at least partially on at least one transmit beam corresponding to the second set of measurement reference signals having a greater intensity than the transmit beam with the maximum intensity corresponding to the first set of measurement reference signals.
[0129] In a third aspect, transmitting the second beam report, either alone or in combination with one or more of the first and second aspects, at least partially based on the first beam report, includes transmitting the second beam report at least partially based on at least one transmit beam corresponding to the second measurement reference signal resource set having a higher quality than the highest quality transmit beam corresponding to the first measurement reference signal resource set.
[0130] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, the first measurement reference signal resource set includes a first CSI-RS resource set, and the second measurement reference signal resource set includes a second CSI-RS resource set.
[0131] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 900 includes sending a request to initiate the second beam report.
[0132] In the sixth aspect, transmitting the second beam report, either alone or in combination with one or more of the first to fifth aspects, includes transmitting the second beam report at a time offset following the transmission of the first beam report.
[0133] although Figure 9 An example box of process 900 is shown, but in some respects, process 900 may include... Figure 9 The boxes depicted in the diagram may be fewer, different, or arranged differently than additional boxes. Alternatively, two or more boxes in the process 900 may be executed in parallel.
[0134] Figure 10 This is a diagram illustrating an example process 1000 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 1000 is an example in which a device or UE (e.g., UE 120, UE 620) performs operations associated with UE-initiated beam reporting adaptation.
[0135] like Figure 10 As shown, in some aspects, process 1000 may include receiving beam reporting configurations associated with a first measurement reference signal resource set and a second measurement reference signal resource set (block 1010). For example, the UE (e.g., using...) Figure 11 The depicted receiving component 1102 and / or communication manager 1106 can receive beam report configurations associated with the first measurement reference signal resource set and the second measurement reference signal resource set, as described above.
[0136] like Figure 10 As further shown, in some aspects, process 1000 may include sending a first beam report for a first set of measurement reference signal resources (block 1020). For example, the UE (e.g., using...) Figure 11 The described transmitting component 1104 and / or communication manager 1106 can transmit a first beam report for a first set of measurement reference signal resources, as described above.
[0137] like Figure 10 As further shown, in some aspects, process 1000 may include sending a second beam report for a second set of measurement reference signal resources (box 1030) after a switch from a first set of measurement reference signal resources. For example, the UE (e.g., using...) Figure 11The described transmitting component 1104 and / or communication manager 1106 can transmit a second beam report for a second measurement reference signal resource set after switching from the first measurement reference signal resource set, as described above.
[0138] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.
[0139] In a first aspect, the switching is based at least in part on the fact that at least one transmit beam corresponding to the second set of measurement reference signals has a greater strength than the maximum strength transmit beam corresponding to the first set of measurement reference signals.
[0140] In a second aspect, either alone or in combination with the first aspect, the switching is based at least in part on the fact that at least one transmit beam corresponding to the second set of measurement reference signals has a higher quality than the highest quality transmit beam corresponding to the first set of measurement reference signals.
[0141] In a third aspect, either alone or in combination with one or more of the first and second aspects, the first measurement reference signal resource set includes a first CSI-RS resource set, and the second measurement reference signal resource set includes a second CSI-RS resource set.
[0142] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the first CSI-RS resource set corresponds to a first set of candidate beams with the maximum signal strength or quality of the SSB measurement set within the beam span of the SSB, and the second CSI-RS resource set corresponds to a second set of candidate beams with the second maximum signal strength or quality of the SSB measurement set within the beam span of the SSB.
[0143] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 1000 includes sending a request to initiate the use of the second set of measurement reference signal resources.
[0144] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the request includes an identifier of the second set of measurement reference signal resources.
[0145] In the seventh aspect, the switching to the second set of measurement reference signal resources, either alone or in combination with one or more of the first to sixth aspects, occurs at a time offset after the transmission of the first beam report.
[0146] although Figure 10An example box of process 1000 is shown, but in some respects, process 1000 may include... Figure 10 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Additionally or alternatively, two or more boxes in the process 1000 may be executed in parallel.
[0147] Figure 11 This is a diagram of an example device 1100 for wireless communication according to the present disclosure. Device 1100 may be a UE, or a UE may include device 1100. In some aspects, device 1100 includes a receiving component 1102, a transmitting component 1104, and / or a communication manager 1106 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, the communication manager 1106 is combined with... Figure 1 The described communication manager 140. As shown, device 1100 can communicate with another device 1108 (such as a UE or a network node (such as a CU, DU, RU or base station)) using receiving component 1102 and transmitting component 1104.
[0148] In some respects, device 1100 can be configured to perform the functions described herein. Figures 1 to 8 The described one or more operations. Additionally or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as Figure 9 The process 900 Figure 10 The process 1000 or a combination thereof. In some respects, Figure 11 The illustrated device 1100 and / or one or more components may include a combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 11 One or more components shown can be combined Figure 2 Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.
[0149] Receiver 1102 may receive communications from device 1108, such as reference signals, control information, data communications, or combinations thereof. Receiver 1102 may provide the received communications to one or more other components of device 1100. In some aspects, receiver 1102 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications, and may provide the processed signals to one or more other components of device 1100. In some aspects, receiver 1102 may include combinations of... Figure 2 The described UE includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof.
[0150] Transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1108. In some aspects, one or more other components of device 1100 may generate communications and provide the generated communications to transmitting component 1104 for transmission to device 1108. In some aspects, transmitting component 1104 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to device 1108. In some aspects, transmitting component 1104 may include combinations of... Figure 2 The described UE may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1104 may co-located with the receive component 1102 in one or more transceivers.
[0151] The communication manager 1106 may support the operation of the receiving component 1102 and / or the transmitting component 1104. For example, the communication manager 1106 may receive information associated with configuring the reception of communications by the receiving component 1102 and / or the transmission of communications by the transmitting component 1104. Additionally or alternatively, the communication manager 1106 may generate control information and / or provide control information to the receiving component 1102 and / or the transmitting component 1104 to control the reception and / or transmission of communications.
[0152] In some respects, receiving component 1102 may receive a first beam report configuration and a second beam report configuration. Transmitting component 1104 may use the second beam report configuration to transmit a second beam report, which is initiated by the UE and is at least partially based on a first beam report using the first beam report configuration. Transmitting component 1104 may send a request to initiate a second beam report.
[0153] In some aspects, receiving component 1102 may receive beam report configurations associated with a first measurement reference signal resource set and a second measurement reference signal resource set. Transmitting component 1104 may transmit a first beam report for the first measurement reference signal resource set. Transmitting component 1104 may transmit a second beam report for the second measurement reference signal resource set after a switch from the first measurement reference signal resource set. Transmitting component 1104 may transmit a request to initiate the use of the second measurement reference signal resource set.
[0154] Figure 11 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 11 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 11 The two or more components shown can be implemented within a single component, or Figure 11 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 11 The collection of (one or more) components shown is executable and described as being composed of Figure 11 Another set of components shown performs one or more functions.
[0155] The following provides an overview of some aspects of this disclosure: Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a first beam report configuration and a second beam report configuration by the UE; and transmitting a second beam report by the UE using the second beam report configuration, which is at least partially based on the first beam report, wherein the first beam report uses the first beam report configuration and the second beam report is initiated by the UE.
[0156] Aspect 2: According to the method of aspect 1, wherein the first beam report configuration is associated with a first measurement reference signal resource set, and the second beam report configuration is associated with a second measurement reference signal resource set.
[0157] Aspect 3: According to the method of aspect 2, wherein transmitting the second beam report, which is at least partially based on the first beam report, includes transmitting the second beam report, which is at least partially based on the fact that at least one transmit beam corresponding to the second measurement reference signal resource set has a greater strength than the maximum strength transmit beam corresponding to the first measurement reference signal resource set.
[0158] Aspect 4: According to the method of aspect 2, wherein transmitting the second beam report, which is at least partially based on the first beam report, includes transmitting the second beam report based at least partially on the fact that at least one transmit beam corresponding to the second measurement reference signal resource set has a higher quality than the highest quality transmit beam corresponding to the first measurement reference signal resource set.
[0159] Aspect 5: According to the method of aspect 2, the first measurement reference signal resource set includes a first channel state information reference signal (CSI-RS) resource set, and the second measurement reference signal resource set includes a second CSI-RS resource set.
[0160] Aspect 6: The method according to any one of aspects 1 to 5, the method further includes sending a request to initiate a report of the second beam.
[0161] Aspect 7: The method according to any one of Aspects 1 to 6, wherein sending the second beam report includes sending the second beam report at a time offset after sending the first beam report.
[0162] Aspect 8: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving, by the UE, a beam report configuration associated with a first measurement reference signal resource set and a second measurement reference signal resource set; transmitting, by the UE, a first beam report for the first measurement reference signal resource set; and transmitting, by the UE, a second beam report for the second measurement reference signal resource set after a handover from the first measurement reference signal resource set.
[0163] Aspect 9: According to the method of aspect 8, the switching is at least in part based on at least one transmit beam corresponding to the second measurement reference signal resource set having a greater intensity than the maximum intensity transmit beam corresponding to the first measurement reference signal resource set.
[0164] Aspect 10: The method according to any one of Aspects 8 to 9, wherein the switching is based at least in part on at least one transmit beam corresponding to the second measurement reference signal resource set having a higher quality than the highest quality transmit beam corresponding to the first measurement reference signal resource set.
[0165] Aspect 11: The method according to any one of Aspects 8 to 10, wherein the first measurement reference signal resource set includes a first channel state information reference signal (CSI-RS) resource set, and wherein the second measurement reference signal resource set includes a second CSI-RS resource set.
[0166] Aspect 12: According to the method of aspect 11, wherein the first CSI-RS resource set corresponds to a first set of candidate beams with the maximum signal strength or quality of the SSB measurement set within the beam span of the Synchronous Signal Block (SSB), and wherein the second CSI-RS resource set corresponds to a second set of candidate beams with the second maximum signal strength or quality of the SSB measurement set within the beam span of the SSB.
[0167] Aspect 13: The method according to any one of aspects 8 to 12, the method further comprising sending a request to initiate the use of the second set of measurement reference signal resources.
[0168] Aspect 14: The method according to aspect 13, wherein the request includes an identifier of the second measurement reference signal resource set.
[0169] Aspect 15: The method according to any one of Aspects 8 to 14, wherein the switching to the second set of measurement reference signal resources is at a time offset after the first beam report is sent.
[0170] Aspect 16: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1 to 15.
[0171] Aspect 17: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1 to 15.
[0172] Aspect 18: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 15.
[0173] Aspect 19: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by one or more processors to perform the methods described in one or more of aspects 1 to 15.
[0174] Aspect 20: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 15.
[0175] Aspect 21: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1 to 15.
[0176] Aspect 22: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform the method according to one or more of aspects 1 to 15.
[0177] While the foregoing disclosure provides examples and descriptions, it is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or from various forms of practice.
[0178] As used herein, the term "component" is intended to be broadly interpreted as hardware or a combination of hardware and at least one of software or firmware. "Software" should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable programs, threads of execution, procedures, or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. As used herein, a "processor" is implemented in hardware or a combination of hardware and software. It will be apparent that the systems or methods described herein may be implemented in various forms of hardware or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems or methods is not limited in any way. Therefore, the operation and behavior of these systems or methods are described herein without reference to specific software code, as those skilled in the art will understand that the software and hardware can be designed to implement these systems or methods, at least in part, based on the description herein. Unless otherwise stated, a component configured to perform a function means that the component has the capability to perform that function, but it is not necessary for the component to actually perform that function.
[0179] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.
[0180] As used in this article, the phrase “at least one of” in a list of items refers to any combination of these items, including a single member. As an example, “at least one of the following: a, b, or c” is intended to cover a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination with multiple of the same element (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).
[0181] No element, action, or instruction used herein should be construed as essential or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are used interchangeably with “one or more.” Furthermore, as used herein, the article “described” is intended to include one or more items mentioned in connection with the article “described” and is used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and are used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “having” and similar terms are intended as open-ended terms that do not limit the elements they modify (e.g., “having” A may also have B). Furthermore, the phrase “based on” is intended to mean “based on or otherwise related to” unless otherwise explicitly stated. Furthermore, as used herein, the term “or” is intended to be inclusive when used consecutively and is interchangeable with “and / or” unless otherwise explicitly stated (e.g., if used in conjunction with “either of the two” or “only one of them”). It should be understood that “one or more” is equivalent to “at least one”.
[0182] Although specific combinations of features are set forth in the claims or disclosed in the description, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically stated in the claims or disclosed in the description. The disclosure of various aspects includes each dependent claim in combination with each other claim in the claim set.
Claims
1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: One or more memory units; and One or more processors, which are configured individually or jointly and at least in part based on information stored in the one or more memories, to: Receive first beam report configuration and second beam report configuration; as well as The second beam report is sent using the second beam report configuration, which is at least partially based on the first beam report, wherein the first beam report uses the first beam report configuration and the second beam report is initiated by the UE.
2. The apparatus of claim 1, wherein the first beam reporting configuration is associated with a first measurement reference signal resource set, and the second beam reporting configuration is associated with a second measurement reference signal resource set.
3. The apparatus of claim 2, wherein, in order to transmit the second beam report, which is at least partially based on the first beam report, the one or more processors are individually or jointly configured to transmit the second beam report based at least partially on at least one transmit beam corresponding to the second measurement reference signal resource set having a greater intensity than the maximum intensity transmit beam corresponding to the first measurement reference signal resource set.
4. The apparatus of claim 2, wherein, in order to transmit the second beam report, which is at least partially based on the first beam report, the one or more processors are individually or jointly configured to transmit the second beam report based at least partially on the fact that at least one transmit beam corresponding to the second measurement reference signal resource set has a higher quality than the highest quality transmit beam corresponding to the first measurement reference signal resource set.
5. The apparatus of claim 2, wherein the first measurement reference signal resource set includes a first channel state information reference signal (CSI-RS) resource set, and wherein the second measurement reference signal resource set includes a second CSI-RS resource set.
6. The apparatus of claim 1, wherein the one or more processors are individually or jointly configured to send a request to initiate the second beam report.
7. The apparatus of claim 1, wherein, in order to transmit the second beam report, the one or more processors are individually or jointly configured to transmit the second beam report at a time offset following the transmission of the first beam report.
8. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: One or more memory units; and One or more processors, which are configured individually or jointly and at least in part based on information stored in the one or more memories, to: Receive beam report configurations associated with the first measurement reference signal resource set and the second measurement reference signal resource set; Send a first beam report for the first set of measurement reference signal resources; as well as A second beam report is sent for the second measurement reference signal resource set after switching from the first measurement reference signal resource set.
9. The apparatus of claim 8, wherein the switching is at least partially based on at least one transmit beam corresponding to the second set of measurement reference signals having a greater intensity than the maximum intensity transmit beam corresponding to the first set of measurement reference signals.
10. The apparatus of claim 8, wherein the switching is based at least in part on at least one transmit beam corresponding to the second measurement reference signal resource set having a higher quality than the highest quality transmit beam corresponding to the first measurement reference signal resource set.
11. The apparatus of claim 8, wherein the first measurement reference signal resource set includes a first channel state information reference signal (CSI-RS) resource set, and wherein the second measurement reference signal resource set includes a second CSI-RS resource set.
12. The apparatus of claim 11, wherein the first CSI-RS resource set corresponds to a first set of candidate beams with the maximum signal strength or quality of the SSB measurement set within the beam span of the synchronization signal block, and wherein the second CSI-RS resource set corresponds to a second set of candidate beams with the second maximum signal strength or quality of the SSB measurement set within the beam span of the SSB.
13. The apparatus of claim 8, wherein the one or more processors are individually or collectively configured to send a request to initiate the use of the second set of measurement reference signal resources.
14. The apparatus of claim 13, wherein the request includes an identifier of the second set of measurement reference signal resources.
15. The apparatus of claim 8, wherein the switching to the second set of measurement reference signal resources is at a time offset after the first beam report is sent.
16. A method for wireless communication performed by a user equipment (UE), the method comprising: The UE receives the first beam report configuration and the second beam report configuration; as well as The UE uses the second beam report configuration to send a second beam report that is at least partially based on the first beam report, wherein the first beam report uses the first beam report configuration and the second beam report is initiated by the UE.