Performing measurements associated with channel measurement resources using restricted receive beam subsets
By using Rx beams associated with a subset of restricted Rx beams during the time domain restriction window of the wireless communication system to perform channel measurements, the problems of resource waste and reduced measurement accuracy in the prior art are solved, and efficient and accurate channel measurements are achieved.
Patent Information
- Application Number
- CN202280100789.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-12
- Publication Date
- 2025-05-16
AI Technical Summary
In the measurements associated with channel measurement resources (CMR), existing wireless communication systems are difficult to efficiently utilize a limited reception (Rx) beam subset, resulting in waste of resources and reduced measurement accuracy.
Between the user equipment (UE) and the network node, the measurements associated with the CMR are performed by using the Rx beam associated with a subset of the restricted Rx beams during the time domain (TD) restriction window and sending a channel status information (CSI) report to the network node.
By efficiently utilizing the limited Rx beam subset, the accuracy and efficiency of channel measurement are improved, resource waste is reduced, and the overall performance of wireless communication systems is improved.
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Figure CN120019580A_ABST
Abstract
Description
Technical Field
[0001] Aspects of the present disclosure relate generally to wireless communications and techniques and apparatus for performing measurements associated with channel measurement resources (CMRs) using restricted receive (Rx) beam subsets. Background Art
[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0003] A wireless network may include one or more network nodes that support communications for wireless communication devices, such as user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a side link (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).
[0004] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by: improving spectrum efficiency; reducing costs; improving services; utilizing new spectrum; and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink, CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink to better integrate with other open standards; and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention
[0005] In some specific implementations, an apparatus for wireless communication at a user equipment (UE) includes: a memory and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to: receive a request to report a measurement associated with a channel measurement resource (CMR) from a network node; during a time domain (TD) restriction window and at least partially based on the request, perform the measurement associated with the CMR using an Rx beam associated with a restricted receive (Rx) beam subset, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of multiple Rx beams associated with the UE; and send a channel state information (CSI) report to the network node, the channel state information (CSI) report indicating the measurement associated with the CMR.
[0006] In some specific implementations, an apparatus for performing wireless communications at a network node includes: a memory and one or more processors, the one or more processors being coupled to the memory, the one or more processors being configured to: send a request to a UE to report a measurement associated with a CMR; and receive a CSI report from the UE, the CSI report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window.
[0007] In some specific implementations, a method of wireless communication performed by an apparatus of a UE includes: receiving a request to report a measurement associated with a CMR from a network node; during a TD restriction window and based at least in part on the request, performing the measurement associated with the CMR using an Rx beam associated with a restricted Rx beam subset, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of multiple Rx beams associated with the UE; and sending a CSI report to the network node, the CSI report indicating the measurement associated with the CMR.
[0008] In some specific implementations, a method of wireless communication performed by an apparatus of a network node includes: sending a request to a UE to report a measurement associated with a CMR; and receiving a CSI report from the UE, the CSI report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window.
[0009] In some specific implementations, a non-transitory computer-readable medium storing an instruction set for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: receive a request from a network node to report a measurement associated with a CMR; during a TD restriction window and based at least in part on the request, perform the measurement associated with the CMR using an Rx beam associated with a restricted Rx beam subset, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of multiple Rx beams associated with the UE; and send a CSI report to the network node, the CSI report indicating the measurement associated with the CMR.
[0010] In some specific implementations, a non-transitory computer-readable medium storing an instruction set for wireless communication includes one or more instructions that, when executed by one or more processors of a network node, cause the network node to: send a request to a UE to report a measurement associated with a CMR; and receive a CSI report from the UE, the CSI report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window.
[0011] In some specific implementations, an apparatus for wireless communication includes: a component for receiving a request to report a measurement associated with a CMR from a network node; a component for performing the measurement associated with the CMR using an Rx beam associated with a restricted Rx beam subset during a TD restriction window and based at least in part on the request, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of multiple Rx beams associated with the apparatus; and a component for sending a CSI report to the network node, the CSI report indicating the measurement associated with the CMR.
[0012] In some specific implementations, an apparatus for wireless communication includes: a component for sending a request to a UE to report a measurement associated with a CMR; and a component for receiving a CSI report from the UE, the CSI report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window.
[0013] Aspects collectively include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to the drawings and description and as illustrated in the drawings and description.
[0014] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.
[0015] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence equipment). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for specific implementation and practice of the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers). The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user equipment of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to be able to understand the above-mentioned features of the present disclosure in detail, a more specific description briefly summarized above may be obtained by reference to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings illustrate only certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0017] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0018] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.
[0019] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.
[0020] Figure 4 is a diagram illustrating an example of beam management according to the present disclosure.
[0021] Figure 5 is a diagram illustrating an example of predictive beam management based on artificial intelligence / machine learning (AI / ML) according to the present disclosure.
[0022] Figure 6is a diagram illustrating an example of network node-based beam pair prediction according to the present disclosure.
[0023] Figures 7 to 9 is a diagram illustrating an example associated with performing measurements associated with channel measurement resources (CMRs) using a restricted receive (Rx) beam subset according to the present disclosure.
[0024] Figure 10 to Figure 11 is a diagram illustrating an example process associated with performing CMR-associated measurements using a restricted Rx beam subset according to the present disclosure.
[0025] Figure 12 to Figure 13 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION
[0026] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is independently or in combination with any other aspect of the disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functionality, or structure and functionality in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the present invention.
[0027] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0028] Although various aspects may be described herein using terms generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applicable to other RATs, such as 3G RAT, 4G RAT and / or RATs beyond 5G (e.g., 6G).
[0029] Figure 11 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). For another example, the network node 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).
[0030] In some examples, the network node 110 is a network node that communicates with the UE 120 via a radio access link, such as an RU, or includes a network node that communicates with the UE 120 via a radio access link, such as an RU. In some examples, the network node 110 is a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU, or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, the network node 110 is a network node that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link, such as a CU, or includes a network node that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link, such as a CU. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. The network nodes 110 may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, transmit receive points (TRPs), DUs, RUs, CUs, mobility elements of a network, core network nodes, network elements, network equipment, RAN nodes, or combinations thereof. In some examples, the network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in the wireless network 100 via various types of fronthaul interfaces, midhaul interfaces, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks, using any suitable transport network).
[0031] In some examples, the network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of the network node 110 and / or the network node subsystem serving the coverage area, depending on the context in which the term is used. The network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1In the example shown, network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. The network node may support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographic area of the cells may move depending on the location of the mobile network node 110 (e.g., a mobile network node).
[0032] In some aspects, the term "base station" or "network node" may refer to an aggregated base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions (such as those described herein in conjunction with network node 110). In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of a plurality of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeatedly perform at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions, but not another base station function. In this way, a single device may include more than one base station.
[0033] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmit transmissions of data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown, a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communications between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.
[0034] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).
[0035] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless or wired backhaul communication link. In some aspects, the network controller 130 may be, or may include, a CU or a core network device.
[0036] UE 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node, and / or any other suitable device configured to communicate via a wireless or wired medium.
[0037] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0038] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.
[0039] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more side link channels (e.g., without using network node 110 as an intermediary to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.
[0040] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "below 6 GHz" band in various documents and articles. A similar naming problem sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).
[0041] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz to 24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, so the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz to 71GHz), FR4 (52.6GHz to 114.25GHz) and FR5 (114.25GHz to 300GHz). Each of these higher frequency bands falls within the EHF band.
[0042] Considering the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be below 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0043] In some aspects, a 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 request from a network node to report a measurement associated with a channel measurement resource (CMR); perform the measurement associated with the CMR using an Rx beam associated with a restricted receive (Rx) beam subset during a time domain (TD) restriction window and based at least in part on the request, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of a plurality of Rx beams associated with the UE; and send a channel state information (CSI) report to the network node, the channel state information (CSI) report indicating the measurement associated with the CMR. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0044] In some aspects, a network node (e.g., network node 110) may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may send a request to a UE to report a measurement associated with a CMR; and receive a CSI report from the UE, the CSI report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0045] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.
[0046] Figure 2 2 is a diagram illustrating an example 200 of a network node 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.
[0047] At the network node 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a through 232t may transmit a set of downlink signals (eg, T downlink signals) via a corresponding set of antennas 234 (eg, T antennas) (shown as antennas 234a through 234t).
[0048] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.
[0049] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.
[0050] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or may be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.
[0051] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, reference Figures 7 to 13 )Aspects of any of the methods described herein.
[0052] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component (shown as DEMOD) of the modem 232), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication and / or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein (e.g., with reference to Figures 7 to 13 )Aspects of any of the methods described herein.
[0053] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the network node 110 may perform one or more techniques associated with using a restricted Rx beam subset to perform CMR-associated measurements, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Fig.10 The process of 1000 Fig.11 1100 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of network node 110 and / or UE 120, may cause the one or more processors, UE 120, and / or network node 110 to perform or direct, for example, Fig.10 The process of 1000 Fig.11 The process 1100 and / or other processes described herein may include operations. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.
[0054] In some aspects, a UE (e.g., UE 120) includes: a component for receiving a request from a network node to report a measurement associated with a CMR; a component for performing the measurement associated with the CMR using an Rx beam associated with a restricted Rx beam subset during a TD restriction window and based at least in part on the request, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of a plurality of Rx beams associated with the UE; and / or a component for sending a CSI report to the network node, the CSI report indicating the measurement associated with the CMR. In some aspects, the components for the UE to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.
[0055] In some aspects, a network node (e.g., network node 110) includes a component for sending a request to a UE to report a measurement associated with the CMR; and / or a component for receiving a CSI report indicating the measurement associated with the CMR from the UE, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window. In some aspects, the components for the network node to perform the operations described herein may include, for example, one or more of the communication manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.
[0056] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described for the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.
[0057] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.
[0058] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or components in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) that perform base station functionality can be implemented as an aggregated base station (also referred to as an independent base station or a monolithic base station) or a decomposed base station. "Network entity" or "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).
[0059] An aggregated base station (e.g., an aggregated network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station (e.g., a decomposed network node) may be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.
[0060] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.
[0061] Figure 3 3 is a diagram illustrating an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated control units, such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both. The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.
[0062] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces, the one or more interfaces being configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of the units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, the wireless interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, or both.
[0063] In some aspects, the CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific implementations, the CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, the CU 310 may be implemented to communicate with the DU 330 for network control and signaling.
[0064] 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 RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a MAC layer, and one or more high physical (PHY) layers, at least in part, according to a functional partition such as that defined by 3GPP. In some aspects, one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may further host one or more low PHY layers, such as one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc. Each layer (also referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.
[0065] Each RU 340 may implement lower layer functionality. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions or low PHY layer functions based on functional split (e.g., functional split defined by 3GPP) (such as lower layer functional split), such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc. In this architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, real-time and non-real-time aspects of control and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).
[0066] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RTRIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.
[0067] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or communicate with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and O-eNBs with the near-RT RIC 325.
[0068] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).
[0069] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.
[0070] Figure 4 is a diagram illustrating an example 400 of beam management according to the present disclosure.
[0071] As shown in reference numeral 402, the UE may initially be in an RRC idle state or an RRC inactive state. As shown in reference numeral 404, the UE may perform initial access. As shown in reference numeral 406, the UE may perform beam management after entering the RRC connected state. Beam management may include P1, P2 and / or P3 beam management processes. The P1 beam management process may be a beam selection process, an initial beam acquisition process, a beam scanning process, a cell search process and / or a beam search process. The P2 beam management process may be a beam refinement process, a network node beam refinement process, a TRP beam refinement process and / or a transmit (Tx) beam refinement process. The P3 beam management process may be a beam refinement process, a UE beam refinement process and / or an Rx beam refinement process. As shown in reference numeral 408, the UE may also perform beam management using an AI / ML-based approach. Beam management using an AI / ML-based approach may use AI / ML models in the spatial domain (SD), TD, and / or frequency domain (FD), which may reduce signaling overhead and latency and improve beam selection accuracy. The AI / ML model may be associated with lifecycle management, which may involve model training, model deployment, model inference, model monitoring, and / or model updating. As shown in reference numeral 410, the UE may perform beam failure detection (BFD), which may be based at least in part on measurements obtained during beam management after entering RRC connected mode. As shown in reference numeral 412, the UE may perform beam failure recovery (BFR) based at least in part on BFD. As shown in reference numeral 414, when BFR is unsuccessful, the UE may declare a radio link failure (RLF).
[0072] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.
[0073] Figure 5 is a diagram illustrating an example 500 of AI / ML-based predictive beam management in accordance with the present disclosure.
[0074] As shown in reference numeral 502, in AI / ML-based predictive beam management, a network node may send multiple first channel state information reference signals (CSI-RS) or synchronization signal blocks (SSBs) at a first time. The first CSI-RS / SSB may be associated with a first CMR. The UE may perform a first layer 1 RSRP (L1-RSRP) and / or signal to interference plus noise ratio (SINR) measurement based at least in part on the multiple first CSI-RS / SSBs. The UE may report the first L1-RSRP / SINR measurement result to the network node. As shown in reference numeral 504, the network node may send multiple second CSI-RS / SSBs at a second time. The second CSI-RS / SSB may be associated with a second CMR. The UE may perform a second L1-RSRP / SINR measurement based at least in part on the multiple second CSI-RS / SSB results. The UE may report the second L1-RSRP / SINR measurement result to the network node. As shown in reference numeral 506, the network node may send multiple third CSI-RS / SSBs at a third time. The third CSI-RS / SSB may be associated with a third CMR. The UE may perform a third L1-RSRP / SINR measurement based at least in part on the plurality of third CSI-RS / SSBs. The UE may report the third L1-RSRP / SINR measurement result to the network node.
[0075] As shown by reference numeral 508, a time series of L1-RSRP / SINR measurement results (e.g., a first L1-RSRP / SINR measurement result, a second L1-RSRP / SINR measurement result, and a third L1-RSRP / SINR measurement result) may be provided as an input to an AI / ML model capable of performing AI / ML-based beam prediction. The AI / ML model may be run on a network node or a UE. When AI / ML-based beam prediction is performed at a network node, the input may be an L1-RSRP / SINR measurement result reported by a UE. When AI / ML-based beam prediction is performed at a UE, the input may be an L1-RSRP / SINR measurement result measured by a UE. As shown by reference numeral 510, the AI / ML model may generate an output based at least in part on the input, wherein the output may indicate a predicted L1-RSRP / SINR measurement result, a predicted candidate beam, and / or a predicted beam failure / blockage. In other words, the output may be based at least in part on the time series of L1-RSRP / SINR measurement results. AI / ML-based beam prediction can result in reduced UE power or UE-specific reference signal overhead, as well as better latency and throughput.
[0076] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.
[0077] AI / ML-based predictive beam management may involve beam management using AI / ML. In traditional beam management processes, beam quality / failure may be identified via measurement, which may involve more power / overhead required to achieve good performance. Beam accuracy may be limited due to constraints on power / overhead, and latency / throughput may be affected by beam recovery efforts. AI / ML-based predictive beam management may provide predictive beam management in SD, TD and / or FD, which may result in power / overhead reduction and / or accuracy / latency / throughput improvements. AI / ML-based predictive beam management may predict unmeasured beam quality, which may result in lower power / overhead or better accuracy. For example, AI / ML-based predictive beam management may predict future beam blocking / failure, which may result in better latency / throughput. AI / ML-based predictive beam management may be useful because beam prediction is a highly nonlinear problem. Predicting future Tx beam quality may depend on the movement speed / trajectory of the UE, the Rx beam used or to be used, and / or interference, which may be difficult to model via conventional statistical signaling processing techniques.
[0078] AI / ML-based predictive beam management may involve prediction of beams via AI / ML at the UE or at the network node, which may involve a tradeoff between performance and UE power. To predict future DL-Tx beam quality, the UE may have more observations (via measurements) than the network node has (via UE feedback). Therefore, beam prediction at the UE may outperform beam prediction at the network node, but may involve more UE power consumption. Model training may occur at the network node or at the UE. For model training at the network node, data may be collected via the air interface or via application layer methods. For model training at the UE, additional UE computing / buffering capabilities may be used for model training and data storage.
[0079] Within the L1-RSRP / L1-SINR reporting framework, the UE may be configured with one or more parameters for joint SSB resource indicator (SSBRI) and / or CSI-RS resource indicator (CRI) and L1-RSRP and / or L1-SINR beam reporting. The UE may report a set of CSI measurement results associated with one or more beams. For example, the UE may be configured with the following parameters for joint SSBRI / CRI and L1-RSRP / L1-SINR beam reporting: ReportQuantity=ssb-Index-RSRP, ssb-Index-SINR, cri-RSRP and / or cri-SINR. In some cases, the UE may report CSI measurement results (e.g., using the parameter nrofReportedRS). The reporting of CSI measurement results may be configured according to the capabilities of the UE (e.g., using RRC). For example, depending on the capabilities of the UE, the parameter nrofReportedRS may be 2 or 4. The UE may report the parameter nrofReportedRS for different SSBRI or CRI configured for each CSI report.
[0080] For L1-RSRP reporting, for the strongest SSBRI (e.g., an SSBRI corresponding to a signal strength and / or quality greater than that of any other SSBRI measured by the UE during a specified time period), seven bits may be used to report the corresponding RSRP (with a 1 dBm step size in the range of [-140, -44] dBm). For the remaining SSBRIs and / or CRIs, four bits may be used to report the differential RSRP with a 2 dB step size in the range of [0, -30] dB and with reference to the L1-RSRP of the strongest SSBRI and / or CRI. For the L1-RSRP of the strongest SSBRI / CRI, the differential RSRP may be reported with a 2 dB step size in the range of [0, -30] dB. 7 =128 but 140-44+1=97, there may be an invalid code point. A mapping between the reported 7-bit code point or 4-bit code point and the actual measured RSRP value may be defined.
[0081] For L1-SINR reporting, for the strongest SSBRI and / or CRI, seven bits may be used to report SINR in the range of [-23,40]dB with a step size of 0.5dB. For the remaining SSBRI / CRI, four bits may be used to report differential SINR in the range of [0,-15]dB with a step size of 1dB and with reference to the L1-SINR of the strongest SSBRI / CRI. There may be no invalid code points for the strongest and remaining SSBRI / CRI, but for the strongest SSBRI / CRI, SINR_0 may represent SINR<-23dB, and DIFFSINR_15 may represent ΔSINR≤-15dB. A mapping between the reported 7-bit code points or 4-bit code points and the actual measured SINR values may be defined.
[0082] For AI / ML based predictive beam management, a first case of beam management and a second case of beam management may be supported for characterization and baseline performance evaluation. In the first case, the SD downlink beam prediction for beam set A may be based at least in part on the measurement results of beam set B. In the second case, the temporal downlink beam prediction for beam set A may be based at least in part on the historical measurement results of beam set B.
[0083] For the first case and the second case, a first alternative and a second alternative may be defined. In the first alternative, the beams in set A and the beams in set B may be in the same frequency range. For the first case, the beams in set B may be a subset of the beams in set A. The number of beams in set A and the number of beams in set B may be defined. The beams in set B may be determined from the beams in set A based at least in part on a fixed pattern or a random pattern. In the second alternative, the beams in set A may be different from the beams in set B (e.g., the beams in set B may not be a subset of the beams in set A). For example, the beams in set A may be associated with narrow beams, and the beams in set B may be associated with wide beams. The number of beams in set A and the number of beams in set B may be defined. A quasi-co-location (QCL) relationship may be defined between the beams in set A and the beams in set B. For the first alternative and the second alternative, set A may be associated with downlink beam prediction, and set B may be associated with downlink beam measurement. A codebook construction of set A and a codebook construction of set B may be defined.
[0084] In the first case, the beams in set A may be different from the beams in set B (e.g., the beams in set B may not be a subset of the beams in set A), or alternatively, the beams in set B may be a subset of the beams in set A. In the second case, the beams in set A may be different from the beams in set B (e.g., the beams in set B may not be a subset of the beams in set A), the beams in set B may be a subset of the beams in set A, or the beams in set A may be the same as the beams in set B. For the first and second cases, set A and set B are associated with different beams and set B is associated with a subset of set A may be supported for AI / ML model training. AI / ML model training may occur at the network side and / or the UE side. For the first and second cases, the predicted beams may be associated with downlink Tx beam prediction, downlink Rx beam prediction, and / or beam pair prediction, where the beam pair may include a downlink Tx beam and a corresponding downlink Rx beam. AI / ML model inference may be facilitated based at least in part on enhanced or new configuration, UE reporting, and / or UE measurements (e.g., enhanced or new beam measurements and / or beam reporting). AI / ML model inference may be facilitated based at least in part on enhanced or new signaling for measurement configuration / triggering, and / or signaling of auxiliary information.
[0085] Figure 6 6 is a diagram illustrating an example 600 of network node-based beam pair prediction according to the present disclosure. Figure 6 As shown, example 600 includes communications between a UE (e.g., UE 120) and a network node (e.g., network node 110). In some aspects, the UE and the network node may be included in a wireless network (such as wireless network 100).
[0086] As shown in reference numeral 602, the UE may send Rx beam information to the network node, which may take into account the hierarchical levels of UE rotation / orientation and Rx beam width. As shown in reference numeral 604, the UE may send an Rx beam recommendation to the network node, which may indicate which Rx beams the network node should measure and report and predict which Rx beams. As shown in reference numeral 606, the UE may send an indication of L1-RSRP / L1-SINR measurement results and reports of Tx-Rx beam pairs to the network node. The network node may send an indication of beam pair prediction to the UE based at least in part on the L1-RSRP / L1-SINR measurement results and reports of the Tx-Rx beam pairs. The beam pair prediction may be based on the beam pair prediction of the network node. As indicated by reference numeral 608, the network node may send to the UE an activation / indication of a predicted transmit configuration indicator (TCI) state regarding an Rx beam or Tx-Rx beam pair for receiving a scheduled physical downlink shared channel (PDSCH). In addition, the network node may indicate to the UE a confidence level associated with an Rx beam or Tx-Rx beam pair for receiving a scheduled PDSCH.
[0087] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.
[0088] The quality of beam pairs (e.g., Tx beams and Rx beams) can be predicted. For example, the network node may rely on the spatially downsampled L1-RSRP measurement results of the beam pair to predict the L1-RSRP measurement results of other beam pairs. Beam pair prediction based on the network node can reduce the UE power consumption associated with running AI / ML models. The UE can report Rx beam pointing direction information, beam width information and / or UE orientation information to the network node, which can facilitate beam pair prediction based on the network node. However, one problem with this approach is that UE-side proprietary information may be disclosed. The specific implementation of the UE Rx beam may conventionally be proprietary information. Another problem with this approach is that the Rx beam may need to be determined and reported by the UE. For beam pair prediction based on the network node, a relatively large overhead may be required for reporting the L1-RSRP measurement results of the beam pair. Additionally, in some cases, the network node may have a better understanding than the UE as to which Rx beams should be used to obtain L1-RSRP measurements based on the current beam prediction (e.g., based on the confidence level of the current beam prediction, because some lost Rx beams may result in a lower beam prediction confidence level and measurements at those lost Rx beams may be required).
[0089] In various aspects of the techniques and apparatus described herein, a UE may receive a request from a network node to report measurements associated with a CMR. The UE may perform measurements associated with the CMR using an Rx beam associated with a restricted Rx beam subset during a TD restriction window and based at least in part on the request. The restricted Rx beam subset may be associated with a TD restriction window. The restricted Rx beam subset may be a subset of a plurality of Rx beams associated with the UE. Different TD restriction windows may be associated with different restricted Rx beam subsets. The UE may send a CSI report to the network node, the CSI report indicating measurements associated with the CMR.
[0090] In some aspects, in order to minimize the public UE-side proprietary information and further reduce the UE reporting overhead for network node-based beam pair prediction, the UE may be configured with a TD restriction window so that the Rx beam used by the UE to measure the Tx beam may be the same within the TD restriction window (or within a certain Rx beam subset). The Rx beam used by the UE may be from a restricted Rx beam subset. For example, a first TD restriction window may be associated with a first Rx beam restriction, a second TD restriction window may be associated with a second Rx beam restriction, and so on. Within a specific TD restriction window, the Rx beam restriction may refer to the Rx beam used by the UE within the TD restriction window, where the Rx beam may be associated with a restricted Rx beam subset. The specific Rx beam (or restricted Rx beam subset) to be used in different TD restriction windows may be standard predefined and / or configured by the network node via RRC signaling. When the UE is configured with a TD restriction window, the UE may not explicitly report its Rx beam information and / or Rx beam orientation about all Rx beams. Instead, the UE may report only a certain number of Rx beam identifiers (IDs) and first-order beam width information. Such Rx beam restriction may reduce L1 reporting overhead compared to reporting beam pair IDs. Alternatively, the network node may dynamically control the specific Rx beam (or Rx beam subset) to be used in the TD restriction window for the corresponding Tx beam. For example, the network node may use a medium access control-control element (MAC-CE) or downlink control information (DCI) to dynamically control the specific Rx beam (or Rx beam subset) to be used in the TD restriction window for the corresponding Tx beam.
[0091] In some aspects, by implementing a TD restriction window, less UE-specific information may be disclosed while still facilitating network node-based beam pair prediction, and lower UE reporting overhead may be achieved. For example, a UE / modem vendor may perform offline training of an AI / ML model that is specific to certain UEs. The network node may download the AI / ML model from a third-party server that may be operated by the UE / modem vendor. The AI / ML model may be specific to certain UEs and may not be suitable for execution for other types of UEs.
[0092] Figure 7 7 is a diagram illustrating an example 700 of performing CMR-associated measurements using a restricted Rx beam subset according to the present disclosure. Figure 7 As shown, example 700 includes communications between a UE (e.g., UE 120) and a network node (e.g., network node 110). In some aspects, the UE and the network node may be included in a wireless network (such as wireless network 100).
[0093] As indicated by reference numeral 702, the UE may receive a request from a network node to report measurements associated with CMR. The network node may request the UE to report measurements associated with CMR via a CSI report from the UE. The network node may use the measurements associated with CMR for AI / ML-based beam prediction (or beam pair prediction) at the network node.
[0094] As indicated by reference numeral 704, the UE may, during the TD restriction window and based at least in part on the request, use an Rx beam associated with the restricted Rx beam subset to perform measurements associated with the CMR. The restricted Rx beam subset may be associated with a TD restriction window. The restricted Rx beam subset may be a subset of a plurality of Rx beams associated with the UE. Different TD restriction windows may be associated with different restricted Rx beam subsets.
[0095] In some aspects, the UE may use a TD window restricted Rx beam for L1-RSRP measurement reporting. In other words, the Rx beam may be associated with a TD restriction window, and the L1-RSRP measurement report may be for the Rx beam associated with the TD restriction window. The UE may receive a request from a network node to report L1-RSRP / L1-SINR measurement results associated with a set of CMRs. The set of CMRs may be associated with SSBs and / or CSI-RS. The network node may request the UE to report L1-RSRP / L1-SINR measurement results associated with a set of CMRs. During a specific TD restriction window, the Rx beams that can be used by the UE to measure CMRs may be limited to a specific subset of the Rx beams associated with the UE (e.g., a restricted Rx beam subset). In other words, the UE may be configured with a set of Rx beams, but during this specific TD restriction window, the UE may only use a subset of the Rx beams to measure CMRs. The UE may use different subsets of Rx beams during different TD restriction windows.
[0096] In some aspects, during the same TD restriction window, the UE may report a specific ID of an Rx beam within a restricted Rx beam subset and the L1-RSRP / L1-SINR measurement result and the corresponding CMR ID, which Rx beam is actually used to determine the reported L1-RSRP / L1-SINR measurement result for the corresponding CMR. In other words, the UE may report the L1-RSRP / L1-SINR measurement result and the corresponding CMR ID via a CSI report, and indicate (e.g., via the Rx beam ID) which specific Rx beams are used to derive the reported L1-RSRP / L1-SINR measurement result for the corresponding CMR ID. Therefore, the network node may be informed about which Rx beams are used to determine the reported L1-RSRP / L1-SINR measurement result for the corresponding CMR ID.
[0097] In some aspects, the UE may, prior to the request, send to the network node an indication of a number of multiple Rx beams associated with the UE. In some aspects, the UE may, prior to the request, send to the network node beam information indicating a beam level associated with each of the multiple Rx beams associated with the UE and / or an antenna panel associated with each of the multiple Rx beams associated with the UE.
[0098] In some aspects, the UE may report the total number of Rx beams and the first-order beam information to the network node. Before the network node requests the UE to report a CSI report, the UE may report the total number of Rx beams. For example, the UE may report that the UE has a total of 63 Rx beams, and only 7 of the 63 Rx beams should be restricted for use during the TD restriction window. Before the network node requests the UE to report a CSI report, the UE may report the first-order beam information. For example, the UE may report that Rx beam #1 to Rx beam #15 are the widest beams (e.g., level 1 beams), Rx beam #16 to Rx beam #29 are narrow beams (e.g., level 2 beams), and Rx beam #30 to Rx beam #63 are the narrowest beams (e.g., level 3 beams). For another example, the UE may report that Rx beam #1 to Rx beam #21, Rx beam #22 to Rx beam #44, and Rx beam #45 to Rx beam #46 are associated with the first antenna panel, the second antenna panel, and the third antenna panel, respectively.
[0099] In some aspects, the UE may receive an indication from a network node that periodic CSI reporting or semi-persistent CSI reporting is configured or activated. In some aspects, N subsequent consecutive periodic reports or semi-persistent reports may be based at least in part on a restricted Rx beam subset according to a TD restriction window. In some aspects, the Rx beam used to perform measurements associated with CMR may be based at least in part on a restricted Rx beam subset for N consecutive time slots or subframes according to a TD restriction window. In addition, N may be configured via a periodic CSI report setting or a semi-persistent CSI report setting, or may be indicated based at least in part on semi-persistent CSI reporting being activated.
[0100] In some aspects, standard predefined restrictions and / or network node controlled restrictions for the TD restriction window may be associated with the UE Rx beam. In some aspects, the standard predefined may predefine that after the periodic CSI report or semi-persistent CSI report is configured or activated, every N consecutive number of periodic CSI reports or semi-persistent CSI reports should be based at least in part on the same subset of the Rx beam. Within a consecutive number of N time slots, subframes, or milliseconds (ms), the Rx beam may be based at least in part on the same subset of the Rx beam. In some aspects, the network node may configure or indicate the value of N. For example, the value of N may be RRC configured via a periodic CSI report setting or a semi-persistent CSI report setting, and when the semi-persistent CSI report is activated, the value of N may be indicated via MAC-CE. The network node may configure or indicate information about the restrictions on the Rx beam.
[0101] In some aspects, the UE may receive an indication of M restricted Rx beam subsets and corresponding Rx beam identifiers from a network node, wherein the restricted Rx beam subset may be one of the M restricted Rx beam subsets. The M restricted Rx beam subsets may be used in a polling manner between different TD restriction windows. For example, a first restricted Rx beam subset may be used, a second restricted Rx beam subset may be used, a third restricted Rx beam subset may be used, and then the first restricted Rx beam subset may be used again in a polling manner. In some aspects, the UE may determine an Rx beam to be used for performing measurements associated with CMR based on the M restricted Rx beam subsets configured by the network node. In some aspects, the UE may receive an indication of an Rx beam to be used for performing measurements associated with CMR during a TD restriction window from a network node.
[0102] In some aspects, the network node may control the UE Rx beam restriction. The network node may pre-configure M subsets of Rx beams in a periodic CSI reporting setting or a semi-persistent CSI reporting setting, wherein each subset of Rx beams may include an Rx beam ID within the total number of Rx beams reported by the UE. The M subsets of Rx beams may be associated with a restricted Rx beam subset. In some aspects, the network node may pre-configure the M subsets in a polling manner so that the M subsets may be used in a polling manner between different TD restriction windows. In some aspects, the UE may still determine the specific Rx beam to be used, but when reporting the L1-RSRP / L1-SINR measurement results and the corresponding CMR ID, the specific Rx beam ID used may be optionally reported. In some aspects, the network node may configure the specific Rx beam that the UE should use for a specific CMR during the associated TD restriction window, in which case the UE may not report the Rx beam ID when reporting the L1-RSRP / L1-SINR measurement results.
[0103] In some aspects, the UE may receive an indication from a network node to dynamically change an Rx beam to be used to perform measurements associated with CMR or a restricted Rx beam subset associated with a TD restriction window. In some aspects, the UE may receive an indication from a network node to dynamically change a TD restriction window.
[0104] In some aspects, the network node may dynamically change the UE Rx beam limitation. For example, the semi-persistent CSI report setting may indicate multiple Rx beam subset options, and the MAC-CE that activates the semi-persistent CSI report may indicate one of the options. As another example, the MAC-CE that activates the semi-persistent CSI report may explicitly indicate the Rx beam that the UE should use before the semi-persistent CSI report is deactivated. As another example, the aperiodic CSI report trigger state configuration may configure the Rx beam that the UE should use for aperiodic CSI reporting, and when the UE is triggered via DCI using aperiodic CSI reporting, the UE may identify a specific Rx beam and reporting option. As another example, the UE may receive a DCI including a dedicated field to change the UE's Rx beam limitation to an alternative option for a specific CSI report. In some aspects, the semi-persistent CSI reporting setting, the MAC-CE activating the semi-persistent CSI reporting, and / or the aperiodic CSI reporting trigger state configuration may indicate whether the restricted Rx beam subset is used in a round-robin manner between different TD restriction windows, whether the UE determines the specific Rx beam to be used, and / or whether the network node configures the specific Rx beam that the UE should use for a specific CMR during the associated TD restriction window.
[0105] In some aspects, the network node may dynamically change the TD restriction window. For example, a MAC-CE activating semi-persistent CSI reporting may indicate a value of N, which may be explicitly indicated or may be based at least in part on an option ID among a plurality of options configured in an associated CSI reporting setting. For another example, a UE may receive a DCI including a dedicated field to change the value of N to an alternative value for a specific CSI report.
[0106] In some aspects, the UE may send an indication of a recommendation for one or more of an Rx beam, a restricted Rx beam subset, or a TD restriction window to a network node. The UE may receive configuration of one or more of an Rx beam, a restricted Rx beam subset, or a TD restriction window from the network node based at least in part on the indication of the recommendation.
[0107] In some aspects, the UE may report an Rx beam limitation mode. The options configured or indicated by the network node may be reported by the UE as recommendations instead. For example, the UE may recommend to the network node a time domain window limitation on the UE Rx beam, N consecutive numbers of periodic CSI reports or semi-persistent CSI reports, M subsets of the Rx beam, and / or dynamically changing UE Rx beam limitations or TD limitation windows. The network node configuration or indication may be used as a confirmation or change of the UE recommendation. In other words, the network node may configure the UE based at least in part on the UE recommendation, or the network node may configure the UE without considering the UE recommendation. Alternatively, the network node configuration or indication may be suppressed, and the Rx beam limitation may depend solely on the UE report. Such UE reports may be carried by UE capability reports, which may be via RRC signaling or via uplink MAC-CE.
[0108] As indicated by reference numeral 706, the UE may send a CSI report to the network node, the CSI report indicating measurements associated with the CMR, wherein the measurements associated with the CMR may be based at least in part on an Rx beam associated with the restricted Rx beam subset and the TD restriction window. In some aspects, the CSI report may indicate an identifier of an Rx beam associated with the restricted Rx beam subset, the Rx beam used to perform the measurements associated with the CMR. Thus, the network node may be able to determine which specific Rx beams the CSI report applies to.
[0109] As indicated above, Figure 7 are provided as examples. Other examples can be found in the Figure 7 The examples described are different.
[0110] Figure 8 is a diagram illustrating an example 800 of performing measurements associated with CMR using a restricted Rx beam subset according to the present disclosure.
[0111] like Figure 8As shown, the UE may be configured with a TD restriction window, during which the Rx beam used by the UE to measure the Tx beam may be the same. In other words, the UE may use the same Rx beam to measure the Tx beam during the TD restriction window. For example, a first TD restriction window may be associated with a first Rx beam restriction, a second TD restriction window may be associated with a second Rx beam restriction, and a third TD restriction window may be associated with a third Rx beam restriction. The first Rx beam restriction may correspond to an Rx beam that the UE may use during the first TD restriction window, the second Rx beam restriction may correspond to an Rx beam that the UE may use during the second TD restriction window, and the third Rx beam restriction may correspond to an Rx beam that the UE may use during the third TD restriction window.
[0112] In some aspects, the UE may send an L1 report to the network node (e.g., for the second TD restriction window). The L1 report may indicate the L1-RSRP measurement results for the corresponding CMR ID and Rx beam ID. For example, the L1 report may indicate an L1-RSRP measurement result of -86dBm for CMR ID#3 and Rx beam ID#0, an L1-RSRP measurement result of -88dBm for CMR ID#4 and Rx beam ID#2, an L1-RSRP measurement result of -94dBm for CMR ID#2 and Rx beam ID#6, and an L1-RSRP measurement result of -100dBm for CMR#6 and Rx beam ID#7. The bit width associated with the Rx beam ID may be based at least in part on the number of Rx beams restricted by the current TD restriction window (e.g., the second TD restriction window).
[0113] As indicated above, Figure 8 are provided as examples. Other examples can be found in the Figure 8 The examples described are different.
[0114] Fig. 9 is a diagram illustrating an example 900 of performing CMR-associated measurements using a restricted Rx beam subset according to the present disclosure.
[0115] As indicated by reference numeral 902, the UE may report Rx beam total number information. The Rx beam total number information may indicate a level 1 beam, which may be associated with the widest beam. The Rx beam total number information may indicate a level 2 beam, which may be associated with a narrow beam. The Rx beam total number information may indicate a level 3 beam, which may be associated with the most narrow beams.
[0116] As indicated by reference numeral 904, the UE may report first-order beam information about the Rx beams. The first-order beam information may indicate which Rx beams are the widest relative to other Rx beams, which Rx beams are narrower relative to other Rx beams, and / or which Rx beams are the narrowest relative to other Rx beams. The first-order beam information may indicate which Rx beams belong to which antenna panel. For example, each antenna panel may be associated with 8 Rx beams.
[0117] As indicated above, Fig. 9 are provided as examples. Other examples can be found in the Fig. 9 The examples described are different.
[0118] Fig.10 is a diagram illustrating an example process 1000 performed, for example, by a UE according to the present disclosure. The example process 1000 is an example in which the UE (eg, UE 120) performs operations associated with performing measurements associated with CMR using a restricted Rx beam subset.
[0119] like Fig.10 As shown, in some aspects, process 1000 may include receiving a request from a network node to report measurements associated with a CMR (block 1010). For example, the UE (e.g., using Fig.12 The depicted communications manager 140 and / or receiving component 1202) can receive a request from a network node to report measurements associated with a CMR, as described above.
[0120] like Fig.10 As further shown, in some aspects, process 1000 may include: during a TD restriction window and based at least in part on the request, performing the measurement associated with the CMR using an Rx beam associated with a restricted Rx beam subset, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of a plurality of Rx beams associated with the UE (block 1020). For example, the UE (e.g., using Fig.12 The depicted communication manager 140 and / or measurement component 1208) may, during the TD restriction window and based at least in part on the request, perform the measurement associated with the CMR using an Rx beam associated with a restricted Rx beam subset, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of multiple Rx beams associated with the UE, as described above.
[0121] like Fig.10 As further shown, in some aspects, process 1000 may include sending a CSI report to the network node, the CSI report indicating the measurement associated with the CMR (block 1030). Fig.12The depicted communications manager 140 and / or transmitting component 1204) may transmit a CSI report to the network node indicating the measurement associated with the CMR, as described above.
[0122] 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 herein.
[0123] In a first aspect, the CSI report indicates an identifier of the Rx beam associated with the restricted Rx beam subset, the Rx beam being used to perform the measurement associated with the CMR.
[0124] In a second aspect, either alone or in combination with the first aspect, different TD limit windows are associated with different restricted Rx beam subsets.
[0125] In a third aspect, alone or in combination with one or more of the first aspect and the second aspect, process 1000 includes: before the request, sending an indication of the number of the multiple Rx beams associated with the UE to the network node.
[0126] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 1000 includes: before the request, sending beam information to the network node, the beam information indicating one or more of the following: a beam level associated with each of the multiple Rx beams associated with the UE, or an antenna panel associated with each of the multiple Rx beams associated with the UE.
[0127] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 1000 includes: receiving an indication from the network node that periodic CSI reporting or semi-persistent CSI reporting is configured or activated, wherein N subsequent consecutive periodic reports or semi-persistent reports are at least partially based on the restricted Rx beam subset according to the TD restriction window, or the Rx beam used to perform the measurement associated with the CMR is at least partially based on the restricted Rx beam subset of N consecutive time slots or subframes according to the TD restriction window, and wherein N is configured via a periodic CSI report setting or a semi-persistent CSI report setting, or is indicated at least partially based on the semi-persistent CSI report being activated.
[0128] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 1000 includes: receiving an indication of M restricted Rx beam subsets and corresponding Rx beam identifiers from the network node, wherein the restricted Rx beam subset is a restricted Rx beam subset among the M restricted Rx beam subsets, and using the M restricted Rx beam subsets in a polling manner between different TD restriction windows.
[0129] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 1000 includes: determining the Rx beam to be used to perform the measurement associated with the CMR based on M restricted Rx beam subsets configured by the network node.
[0130] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 1000 includes: receiving, from the network node, an indication of the Rx beam to be used to perform the measurement associated with the CMR during the TD restriction window.
[0131] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 1000 includes: receiving an indication from the network node to dynamically change the Rx beam to be used to perform the measurement associated with the CMR or the restricted Rx beam subset associated with the TD limit window.
[0132] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, process 1000 includes: receiving an indication to dynamically change the TD limit window from the network node.
[0133] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 1000 includes: sending an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD limit window to the network node; and receiving a configuration for one or more of the Rx beam, the restricted Rx beam subset, or the TD limit window from the network node based at least in part on the indication of the recommendation.
[0134] although Fig.10 Example blocks of process 1000 are shown, but in some aspects, process 1000 may include Fig.10 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1000 may be performed in parallel.
[0135] Fig.11is a diagram illustrating an example process 1100 performed, for example, by a network node according to the present disclosure. The example process 1100 is an example in which the network node (eg, the network node 110) performs operations associated with performing measurements associated with CMR using a restricted Rx beam subset.
[0136] like Fig.11 As shown, in some aspects, process 1100 may include sending a request to the UE to report measurements associated with the CMR (block 1110). For example, a network node (e.g., using Fig.13 Depicted transmitting component 1304) can transmit a request to the UE to report measurements associated with the CMR, as described above.
[0137] like Fig.11 As further shown, in some aspects, process 1100 may include receiving, from the UE, a CSI report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window (block 1120). For example, a network node (e.g., using Fig.13 The depicted receiving component 1302) may receive a CSI report from the UE, the CSI report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window, as described above.
[0138] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.
[0139] In a first aspect, process 1100 includes, prior to the request, receiving, from the UE, an indication of a number associated with a plurality of Rx beams associated with the UE.
[0140] In a second aspect, alone or in combination with the first aspect, process 1100 includes: before the request, receiving beam information from the UE, the beam information indicating one or more of: a beam level associated with each of the multiple Rx beams associated with the UE, or an antenna panel associated with each of the multiple Rx beams associated with the UE.
[0141] In a third aspect, alone or in combination with one or more of the first aspect and the second aspect, process 1100 includes: sending an indication of M restricted Rx beam subsets and corresponding Rx beam identifiers to the UE, wherein the restricted Rx beam subset is a restricted Rx beam subset among the M restricted Rx beam subsets, and wherein the M restricted Rx beam subsets are used in a polling manner between different TD restriction windows.
[0142] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 1100 includes sending to the UE an indication of the Rx beam to be used for performing the measurement associated with the CMR during the TD restriction window.
[0143] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 1100 includes: sending an indication to the UE to dynamically change the Rx beam to be used to perform the measurement associated with the CMR or the restricted Rx beam subset associated with the TD restriction window.
[0144] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 1100 includes: sending an indication to the UE to dynamically change the TD restriction window.
[0145] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 1100 includes: receiving an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window from the UE; and sending a configuration of one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window to the UE based at least in part on the indication of the recommendation.
[0146] although Fig.11 Example blocks of process 1100 are shown, but in some aspects, process 1100 may include Fig.11 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1100 may be performed in parallel.
[0147] Fig.121 is a diagram of an example apparatus 1200 for wireless communication according to the present disclosure. Apparatus 1200 may be a UE, or a UE may include apparatus 1200. In some aspects, apparatus 1200 includes a receiving component 1202 and a transmitting component 1204, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1200 may communicate with another apparatus 1206 (such as a UE, a base station, or another wireless communication device) using receiving component 1202 and transmitting component 1204. As further shown, apparatus 1200 may include a communication manager 140. Communication manager 140 may include measurement component 1208, etc.
[0148] In some aspects, the apparatus 1200 may be configured to perform Figures 7 to 9 Additionally or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as Fig.10 The process 1000. In some aspects, Fig.12 The device 1200 and / or one or more components shown may include a combination of Figure 2 One or more components of the UE. Additionally or alternatively, Fig.12 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.
[0149] The receiving component 1202 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1206. The receiving component 1202 may provide the received communications to one or more other components of the device 1200. In some aspects, the receiving component 1202 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to the one or more other components of the device 1200. In some aspects, the receiving component 1202 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the UE.
[0150] The transmitting component 1204 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1206. In some aspects, one or more other components of the device 1200 may generate communications and may provide the generated communications to the transmitting component 1204 for transmission to the device 1206. In some aspects, the transmitting component 1204 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1206. In some aspects, the transmitting component 1204 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the UE. In some aspects, the transmit component 1204 can be co-located with the receive component 1202 in a transceiver.
[0151] The receiving component 1202 may receive a request for reporting a measurement associated with the CMR from a network node. The measuring component 1208 may perform the measurement associated with the CMR using an Rx beam associated with a restricted Rx beam subset during a TD restriction window and based at least in part on the request, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of a plurality of Rx beams associated with the UE. The sending component 1204 may send a CSI report to the network node, the CSI report indicating the measurement associated with the CMR.
[0152] The sending component 1204 may, prior to the request, send to the network node an indication of a number of the multiple Rx beams associated with the UE. The sending component 1204 may, prior to the request, send to the network node beam information indicating one or more of: a beam level associated with each of the multiple Rx beams associated with the UE, or an antenna panel associated with each of the multiple Rx beams associated with the UE.
[0153] The receiving component 1202 may receive an indication from the network node that periodic CSI reporting or semi-persistent CSI reporting is configured or activated, wherein N subsequent consecutive periodic reports or semi-persistent reports are at least partially based on the restricted Rx beam subset according to the TD restriction window, or the Rx beam used to perform the measurement associated with the CMR is at least partially based on the restricted Rx beam subset of N consecutive time slots or subframes according to the TD restriction window, and wherein N is configured via a periodic CSI report setting or a semi-persistent CSI report setting, or is indicated at least partially based on the semi-persistent CSI report being activated.
[0154] The receiving component 1202 may receive, from the network node, an indication of M restricted Rx beam subsets and corresponding Rx beam identifiers, wherein the restricted Rx beam subset is one of the M restricted Rx beam subsets, and wherein the M restricted Rx beam subsets are used in a round-robin manner between different TD restriction windows. The receiving component 1202 may receive, from the network node, an indication of the Rx beam to be used for performing the measurement associated with the CMR during the TD restriction window.
[0155] The receiving component 1202 may receive an indication from the network node to dynamically change the Rx beam to be used to perform the measurement associated with the CMR or the restricted Rx beam subset associated with the TD limit window. The receiving component 1202 may receive an indication from the network node to dynamically change the TD limit window. The sending component 1204 may send an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD limit window to the network node. The receiving component 1202 may receive a configuration of one or more of the Rx beam, the restricted Rx beam subset, or the TD limit window from the network node based at least in part on the indication of the recommendation.
[0156] Fig.12 The number and arrangement of components shown are provided as examples. Fig.12 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.12 Two or more components shown may be implemented in a single component, or Fig.12 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.12 The illustrated set of component(s) may be described as being executable by Fig.12 Another collection of components shown performs one or more functions.
[0157] Fig.13 1 is a diagram of an example apparatus 1300 for wireless communication according to the present disclosure. Apparatus 1300 may be a network node, or a network node may include apparatus 1300. In some aspects, apparatus 1300 includes a receiving component 1302 and a sending component 1304, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1300 may communicate with another apparatus 1306 (such as a UE, a base station, or another wireless communication device) using receiving component 1302 and sending component 1304.
[0158] In some aspects, the apparatus 1300 may be configured to perform Figures 7 to 9Additionally or alternatively, the apparatus 1300 may be configured to perform one or more processes described herein, such as Fig.11 The process 1100. In some aspects, Fig.13 The device 1300 and / or one or more components shown may include a combination of Figure 2 One or more components of the network node. Additionally or alternatively, Fig.13 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.
[0159] The receiving component 1302 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1306. The receiving component 1302 may provide the received communications to one or more other components of the device 1300. In some aspects, the receiving component 1302 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to the one or more other components of the device 1300. In some aspects, the receiving component 1302 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the network node.
[0160] Transmit component 1304 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1306. In some aspects, one or more other components of device 1300 may generate communications and may provide the generated communications to transmit component 1304 for transmission to device 1306. In some aspects, transmit component 1304 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to device 1306. In some aspects, transmit component 1304 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the network node. In some aspects, the transmit component 1304 can be co-located with the receive component 1302 in a transceiver.
[0161] The sending component 1304 can send a request to the UE to report a measurement associated with the CMR. The receiving component 1302 can receive a CSI report from the UE, the CSI report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a TD restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window.
[0162] The receiving component 1302 may receive, from the UE, an indication of a number of multiple Rx beams associated with the UE prior to the request. The receiving component 1302 may receive, from the UE, beam information prior to the request, the beam information indicating one or more of: a beam level associated with each of the multiple Rx beams associated with the UE, or an antenna panel associated with each of the multiple Rx beams associated with the UE. The sending component 1304 may send, to the UE, an indication of M restricted Rx beam subsets and corresponding Rx beam identifiers, wherein the restricted Rx beam subset is one of the M restricted Rx beam subsets, and wherein the M restricted Rx beam subsets are used in a polling manner between different TD restriction windows.
[0163] The sending component 1304 may send an indication to the UE of the Rx beam to be used for performing the measurement associated with the CMR during the TD restriction window. The sending component 1304 may send an indication to the UE to dynamically change the Rx beam to be used for performing the measurement associated with the CMR or the restricted Rx beam subset associated with the TD restriction window. The sending component 1304 may send an indication to the UE to dynamically change the TD restriction window. The receiving component 1302 receives an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window from the UE. The sending component 1304 may send a configuration of one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window to the UE based at least in part on the indication of the recommendation.
[0164] Fig.13 The number and arrangement of components shown are provided as examples. Fig.13 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.13 Two or more components shown may be implemented in a single component, or Fig.13 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.13 The illustrated set of component(s) may be described as being executable by Fig.13Another collection of components shown performs one or more functions.
[0165] The following provides an overview of some aspects of the disclosure:
[0166] Aspect 1: A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving a request to report measurements associated with a channel measurement resource (CMR) from a network node; performing the measurements associated with the CMR using an Rx beam associated with a restricted receive (Rx) beam subset during a time domain (TD) restriction window and at least partially based on the request, wherein the restricted Rx beam subset is associated with the TD restriction window and wherein the restricted Rx beam subset is a subset of multiple Rx beams associated with the UE; and sending a channel state information (CSI) report to the network node, the channel state information (CSI) report indicating the measurements associated with the CMR.
[0167] Aspect 2: The method according to aspect 1, wherein the CSI report indicates an identifier of the Rx beam associated with the restricted Rx beam subset, the Rx beam being used to perform the measurement associated with the CMR.
[0168] Aspect 3: The method according to any one of Aspects 1 to 2, wherein different TD limit windows are associated with different restricted Rx beam subsets.
[0169] Aspect 4: According to the method according to any one of Aspects 1 to 3, the method further includes: before the request, sending an indication of the number of the multiple Rx beams associated with the UE to the network node.
[0170] Aspect 5: According to the method described in any one of Aspects 1 to 4, the method further includes: before the request, sending beam information to the network node, the beam information indicating one or more of the following: a beam level associated with each of the multiple Rx beams associated with the UE, or an antenna panel associated with each of the multiple Rx beams associated with the UE.
[0171] Aspect 6: According to the method described in any one of Aspects 1 to 5, the method further includes: receiving an indication from the network node that periodic CSI reporting or semi-persistent CSI reporting is configured or activated, wherein N subsequent consecutive periodic reports or semi-persistent reports are at least partially based on the restricted Rx beam subset according to the TD restriction window, or the Rx beam used to perform the measurement associated with the CMR is at least partially based on the restricted Rx beam subset of N consecutive time slots or subframes according to the TD restriction window, and wherein N is configured via a periodic CSI report setting or a semi-persistent CSI report setting, or is indicated at least partially based on the semi-persistent CSI report being activated.
[0172] Aspect 7: According to the method described in any one of Aspects 1 to 6, the method further includes: receiving an indication of M restricted Rx beam subsets and corresponding Rx beam identifiers from the network node, wherein the restricted Rx beam subset is a restricted Rx beam subset among the M restricted Rx beam subsets, and wherein the M restricted Rx beam subsets are used in a polling manner between different TD restriction windows.
[0173] Aspect 8: The method according to any one of Aspects 1 to 7, wherein the Rx beam to be used for performing the measurement associated with the CMR is determined from M restricted Rx beam subsets configured by the network node.
[0174] Aspect 9: According to the method according to any one of aspects 1 to 8, the method further includes: receiving, from the network node, an indication of the Rx beam to be used for performing the measurement associated with the CMR during the TD restriction window.
[0175] Aspect 10: According to the method according to any one of Aspects 1 to 9, the method also includes: receiving an indication from the network node to dynamically change the Rx beam to be used to perform the measurement associated with the CMR or the restricted Rx beam subset associated with the TD restriction window.
[0176] Aspect 11: According to the method according to any one of aspects 1 to 10, the method further comprises: receiving an instruction to dynamically change the TD limit window from the network node.
[0177] Aspect 12: According to the method described in any one of Aspects 1 to 11, the method further includes: sending an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window to the network node; and receiving a configuration for one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window from the network node based at least in part on the indication of the recommendation.
[0178] Aspect 13: A method of wireless communication performed by a device of a network node, the method comprising: sending a request to a user equipment (UE) to report measurements associated with a channel measurement resource (CMR); and receiving a channel state information (CSI) report indicating the measurements associated with the CMR from the UE, wherein the measurements associated with the CMR are associated with a time domain (TD) restriction window and are performed at least in part based on an Rx beam associated with a restricted receive (Rx) beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window.
[0179] Aspect 14: The method according to aspect 13 further includes: before the request, receiving, from the UE, an indication of the number of multiple Rx beams associated with the UE.
[0180] Aspect 15: According to the method described in any one of Aspects 13 to 14, the method further includes: before the request, receiving beam information from the UE, the beam information indicating one or more of the following: a beam level associated with each of the multiple Rx beams associated with the UE, or an antenna panel associated with each of the multiple Rx beams associated with the UE.
[0181] Aspect 16: According to the method described in any one of Aspects 13 to 15, the method further includes: sending an indication of M restricted Rx beam subsets and corresponding Rx beam identifiers to the UE, wherein the restricted Rx beam subset is one restricted Rx beam subset among the M restricted Rx beam subsets, and wherein the M restricted Rx beam subsets are used in a polling manner between different TD restriction windows.
[0182] Aspect 17: According to the method of any one of Aspects 13 to 16, the method further includes: sending to the UE an indication of the Rx beam to be used for performing the measurement associated with the CMR during the TD restriction window.
[0183] Aspect 18: According to the method according to any one of Aspects 13 to 17, the method also includes: sending an indication to the UE to dynamically change the Rx beam to be used to perform the measurement associated with the CMR or the restricted Rx beam subset associated with the TD restriction window.
[0184] Aspect 19: According to the method according to any one of Aspects 13 to 18, the method further comprises: sending an indication to the UE to dynamically change the TD restriction window.
[0185] Aspect 20: According to the method described in any one of Aspects 13 to 19, the method further includes: receiving an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window from the UE; and sending a configuration of one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window to the UE based at least in part on the indication of the recommendation.
[0186] Aspect 21: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 12.
[0187] Aspect 22: A device for wireless communication, the device comprising: a memory and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 12.
[0188] Aspect 23: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 1 to 12.
[0189] Aspect 24: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 12.
[0190] Aspect 25: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 12.
[0191] Aspect 26: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 13 to 20.
[0192] Aspect 27: A device for wireless communication, the device comprising: a memory and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 13 to 20.
[0193] Aspect 28: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 13 to 20.
[0194] Aspect 29: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 13 to 20.
[0195] Aspect 30: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 13 to 20.
[0196] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the various aspects.
[0197] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes and / or functions, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, there is no reference to a specific software code herein to describe the operation and behavior of the system and / or method, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.
[0198] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.
[0199] Although the specific combination of features is set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically described in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (which includes a single member). For example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (for example, a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other ordering of a, b and c).
[0200] Any element, action or instruction used herein should not be interpreted as key or necessary, unless explicitly described as such. In addition, as used herein, the article "one" is intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If only one project is intended to be referred to, the phrase "only one" or similar terms will be used. In addition, as used herein, the terms "have", "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "an element with" A can also have B). In addition, the phrase "based on" is intended to represent "based at least in part on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and used interchangeably with "and / or" unless explicitly stated otherwise (e.g., if used in conjunction with "either" or "only one of").
Claims
1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: Memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to: receiving a request from a network node to report measurements associated with a channel measurement resource (CMR); performing the measurement associated with the CMR using a restricted receive (Rx) beam subset associated with an Rx beam during a time domain (TD) restriction window and based at least in part on the request, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of a plurality of Rx beams associated with the UE; as well as A channel state information (CSI) report is sent to the network node, the channel state information (CSI) report indicating the measurement associated with the CMR. 2 . The apparatus according to claim 1 , wherein the CSI report indicates an identifier of the Rx beam associated with the restricted Rx beam subset, the Rx beam being used to perform the measurement associated with the CMR. 3 . The apparatus of claim 1 , wherein different TD restriction windows are associated with different restricted Rx beam subsets.
4. The apparatus of claim 1 , wherein the one or more processors are further configured to: Prior to the request, an indication of a number associated with the plurality of Rx beams associated with the UE is sent to the network node.
5. The apparatus of claim 1 , wherein the one or more processors are further configured to: Prior to the request, beam information is sent to the network node, the beam information indicating one or more of: a beam level associated with each of the multiple Rx beams associated with the UE, or an antenna panel associated with each of the multiple Rx beams associated with the UE.
6. The apparatus of claim 1, wherein the one or more processors are further configured to: An indication is received from the network node that periodic CSI reporting or semi-persistent CSI reporting is configured or activated, wherein N subsequent consecutive periodic reports or semi-persistent reports are at least partially based on the restricted Rx beam subset according to the TD restriction window, or the Rx beam used to perform the measurement associated with the CMR is at least partially based on the restricted Rx beam subset of N consecutive time slots or subframes according to the TD restriction window, and wherein N is configured via a periodic CSI report setting or a semi-persistent CSI report setting, or is indicated at least partially based on the semi-persistent CSI report being activated.
7. The apparatus of claim 1, wherein the one or more processors are further configured to: An indication of M restricted Rx beam subsets and corresponding Rx beam identifiers is received from the network node, wherein the restricted Rx beam subset is one restricted Rx beam subset among the M restricted Rx beam subsets, and wherein the M restricted Rx beam subsets are used in a round-robin manner between different TD restriction windows. 8 . The apparatus of claim 1 , wherein the Rx beam to be used to perform the measurement associated with the CMR is determined from M restricted Rx beam subsets configured by the network node.
9. The apparatus of claim 1, wherein the one or more processors are further configured to: An indication of the Rx beam to be used for performing the measurements associated with the CMR during the TD restriction window is received from the network node.
10. The apparatus of claim 1, wherein the one or more processors are further configured to: An indication is received from the network node to dynamically change the Rx beam to be used for performing the measurement associated with the CMR or the restricted Rx beam subset associated with the TD restriction window.
11. The apparatus of claim 1 , wherein the one or more processors are further configured to: An indication to dynamically change the TD limit window is received from the network node.
12. The apparatus of claim 1, wherein the one or more processors are further configured to: sending an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window to the network node; and Based at least in part on the indication of the recommendation, receiving, from the network node, configuration of one or more of the Rx beam, the restricted Rx beam subset, or the TD limit window.
13. An apparatus for wireless communication at a network node, the apparatus comprising: Memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to: sending a request to a user equipment (UE) to report measurements associated with a channel measurement resource (CMR); as well as A channel state information (CSI) report is received from the UE, the channel state information (CSI) report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a time domain (TD) restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window.
14. The apparatus of claim 13, wherein the one or more processors are further configured to: Prior to the request, an indication of a number associated with a plurality of Rx beams associated with the UE is received from the UE.
15. The apparatus of claim 13, wherein the one or more processors are further configured to: Prior to the request, beam information is received from the UE, the beam information indicating one or more of: a beam level associated with each of a plurality of Rx beams associated with the UE, or an antenna panel associated with each of the plurality of Rx beams associated with the UE.
16. The apparatus of claim 13, wherein the one or more processors are further configured to: An indication of M restricted Rx beam subsets and corresponding Rx beam identifiers is sent to the UE, wherein the restricted Rx beam subset is one restricted Rx beam subset among the M restricted Rx beam subsets, and wherein the M restricted Rx beam subsets are used in a polling manner between different TD restriction windows.
17. The apparatus of claim 13, wherein the one or more processors are further configured to: An indication of the Rx beam to be used for performing the measurement associated with the CMR during the TD restriction window is sent to the UE.
18. The apparatus of claim 13, wherein the one or more processors are further configured to: An indication of dynamically changing the Rx beam to be used for performing the measurement associated with the CMR or the restricted Rx beam subset associated with the TD restriction window is sent to the UE.
19. The apparatus of claim 13, wherein the one or more processors are further configured to: An instruction to dynamically change the TD restriction window is sent to the UE.
20. The apparatus of claim 13, wherein the one or more processors are further configured to: receiving, from the UE, an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window; and Based at least in part on the indication of the recommendation, a configuration of one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window is sent to the UE.
21. A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving a request from a network node to report measurements associated with a channel measurement resource (CMR); performing the measurement associated with the CMR using a restricted receive (Rx) beam subset associated with an Rx beam during a time domain (TD) restriction window and based at least in part on the request, wherein the restricted Rx beam subset is associated with the TD restriction window, and wherein the restricted Rx beam subset is a subset of a plurality of Rx beams associated with the UE; as well as A channel state information (CSI) report is sent to the network node, the channel state information (CSI) report indicating the measurement associated with the CMR.
22. The method according to claim 21, further comprising: Prior to the request, an indication of a number associated with the plurality of Rx beams associated with the UE is sent to the network node.
23. The method according to claim 21, further comprising: Prior to the request, beam information is sent to the network node, the beam information indicating one or more of: a beam level associated with each of the multiple Rx beams associated with the UE, or an antenna panel associated with each of the multiple Rx beams associated with the UE.
24. The method according to claim 21, further comprising: An indication is received from the network node that periodic CSI reporting or semi-persistent CSI reporting is configured or activated, wherein N subsequent consecutive periodic reports or semi-persistent reports are at least partially based on the restricted Rx beam subset according to the TD restriction window, or the Rx beam used to perform the measurement associated with the CMR is at least partially based on the restricted Rx beam subset of N consecutive time slots or subframes according to the TD restriction window, and wherein N is configured via a periodic CSI report setting or a semi-persistent CSI report setting, or is indicated at least partially based on the semi-persistent CSI report being activated.
25. The method according to claim 21, further comprising: An indication of M restricted Rx beam subsets and corresponding Rx beam identifiers is received from the network node, wherein the restricted Rx beam subset is one restricted Rx beam subset among the M restricted Rx beam subsets, and wherein the M restricted Rx beam subsets are used in a round-robin manner between different TD restriction windows.
26. The method according to claim 21, further comprising: An indication of the Rx beam to be used for performing the measurements associated with the CMR during the TD restriction window is received from the network node.
27. The method according to claim 21, further comprising: An indication is received from the network node to dynamically change the Rx beam to be used for performing the measurement associated with the CMR or the restricted Rx beam subset associated with the TD restriction window.
28. The method according to claim 21, further comprising: An indication to dynamically change the TD limit window is received from the network node.
29. The method according to claim 21, further comprising: sending an indication of a recommendation for one or more of the Rx beam, the restricted Rx beam subset, or the TD restriction window to the network node; as well as Based at least in part on the indication of the recommendation, receiving, from the network node, configuration of one or more of the Rx beam, the restricted Rx beam subset, or the TD limit window.
30. A method of wireless communication performed by an apparatus of a network node, the method comprising: sending a request to a user equipment (UE) to report measurements associated with a channel measurement resource (CMR); as well as A channel state information (CSI) report is received from the UE, the channel state information (CSI) report indicating the measurement associated with the CMR, wherein the measurement associated with the CMR is associated with a time domain (TD) restriction window and is performed at least in part based on an Rx beam associated with a restricted Rx beam subset, and wherein the restricted Rx beam subset is associated with the TD restriction window.