Beam level selection based at least in part on throughput requirements
By estimating the communication throughput requirements in the wireless communication system and selecting the beam level with the lowest power consumption, the problem of inefficient beam level selection in the prior art is solved, and the satisfaction of throughput requirements and optimization of power consumption is achieved.
Patent Information
- Application Number
- CN202380066543.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-27
- Filing Date
- 2023-07-25
- Publication Date
- 2025-05-02
AI Technical Summary
Existing wireless communication systems are difficult to effectively balance throughput requirements and power consumption optimization when selecting beam level, resulting in inefficiency and high thermal costs.
The user equipment (UE) selects a beam level associated with the lowest power consumption among a number of candidate beam levels that can meet the throughput requirements and uses the beam level to communicate among the multiple candidate beam levels that can meet the throughput requirements.
By choosing the beam level with the lowest power consumption, the UE can reduce power and thermal costs while meeting throughput requirements and improving the efficiency and sustainability of wireless communications.
Smart Images

Figure CN119923802A_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Non-Provisional Patent Application No. 17 / 935,798, filed on September 27, 2022, entitled “BEAM-LEVEL SELECTION BASED AT LEAST IN PART ON A THROUGHPUT REQUIREMENT” and assigned to the assignee of this application. The disclosure of the prior application is considered a part of this patent application and is incorporated by reference into this patent application. Technical Field
[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for beam level selection based at least in part on throughput requirements.
[0004] background
[0005] 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 or 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).
[0006] 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.).
[0007] 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) with cyclic prefix (CP) (CP-OFDM) 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, as well as 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
[0008] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include estimating a throughput requirement associated with communication between the UE and a network node. The method may include selecting a beam level associated with a lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement. The method may include communicating with the network node using the beam level.
[0009] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include estimating a throughput requirement associated with communication between the UE and a network node. The method may include generating a set of candidate beams including a corresponding candidate beam at each beam level in a plurality of beam levels, the corresponding candidate beam being associated with a best beam metric based at least in part on a power lag parameter. The method may include selecting a candidate beam to be used for the communication in the set of candidate beams based at least in part on the throughput requirement and a time lag parameter. The method may include communicating with the network node using the candidate beam.
[0010] Some aspects described herein relate to a UE for wireless communication. The UE may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to estimate a throughput requirement associated with communication between the UE and a network node. The one or more processors may be configured to select a beam level associated with a minimum power consumption from a plurality of candidate beam levels that can meet the throughput requirement. The one or more processors may be configured to communicate with the network node using the beam level.
[0011] Some aspects described herein relate to a UE for wireless communication. The UE may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to estimate a throughput requirement associated with communication between the UE and a network node. The one or more processors may be configured to generate a set of candidate beams including a corresponding candidate beam at each beam level in a plurality of beam levels, the corresponding candidate beam being associated with an optimal beam metric based at least in part on a power lag parameter. The one or more processors may be configured to select a candidate beam to be used for the communication in the set of candidate beams based at least in part on the throughput requirement and a time lag parameter. The one or more processors may be configured to communicate with the network node using the candidate beam.
[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to estimate a throughput requirement associated with communication between the UE and a network node. The instruction set, when executed by one or more processors of the UE, may cause the UE to select a beam level associated with a minimum power consumption from a plurality of candidate beam levels that can meet the throughput requirement. The instruction set, when executed by one or more processors of the UE, may cause the UE to communicate with the network node using the beam level.
[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to estimate a throughput requirement associated with communication between the UE and a network node. The instruction set, when executed by one or more processors of the UE, may cause the UE to generate a set of candidate beams including a corresponding candidate beam at each beam level in a plurality of beam levels, the corresponding candidate beam being associated with an optimal beam metric based at least in part on a power lag parameter. The instruction set, when executed by one or more processors of the UE, may cause the UE to select a candidate beam to be used for the communication from the set of candidate beams based at least in part on the throughput requirement and a time lag parameter. The instruction set, when executed by one or more processors of the UE, may cause the UE to communicate with the network node using the candidate beam.
[0014] Some aspects described herein are directed to an apparatus for wireless communication. The apparatus may include means for estimating a throughput requirement associated with communication between the apparatus and a network node. The apparatus may include means for selecting a beam level associated with a lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement. The apparatus may include means for communicating with the network node using the beam level.
[0015] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for estimating a throughput requirement associated with communication between the apparatus and a network node. The apparatus may include means for generating a set of candidate beams including a corresponding candidate beam at each beam level in a plurality of beam levels, the corresponding candidate beam being associated with a best beam metric based at least in part on a power lag parameter. The apparatus may include means for selecting a candidate beam to be used for the communication from the set of candidate beams based at least in part on the throughput requirement and a time lag parameter. The apparatus may include means for communicating with the network node using the candidate beam.
[0016] 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.
[0017] 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 limitations to the claims.
[0018] 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 devices). 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 implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0020] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0021] 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.
[0022] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.
[0023] Figure 4 is a diagram illustrating an example of a channel state information reference signal beam management process according to the present disclosure.
[0024] Figure 5 is a diagram of an example associated with beam level selection based at least in part on throughput requirements in accordance with the present disclosure.
[0025] Figure 6is a diagram of another example associated with beam level selection based at least in part on throughput requirements in accordance with the present disclosure.
[0026] Figure 7 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0027] Figure 8 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0028] Fig. 9 is a diagram of an example apparatus for wireless communications according to the present disclosure.
[0029] Fig.10 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION
[0030] 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 interpreted 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 protection scope of the present disclosure will be fully conveyed to those skilled in the art. It should be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present 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 devices or methods implemented using other structures, functionality, or structures 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 claim.
[0031] 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, or algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0032] 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 5G and beyond (e.g., 6G) RATs.
[0033] Figure 1 1 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)).
[0034] In some examples, the network node 110 is or includes a network node (such as an RU) that communicates with the UE 120 via a radio access link. In some examples, the network node 110 is or includes a network node (such as a DU) that communicates with other network nodes 110 via a fronthaul link or a midhaul link. In some examples, the network node 110 is or includes a network node (such as a CU) that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link. 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. For example, the network node 110 may include an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in 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.
[0035] 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).
[0036] 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 the network node 110. In some aspects, the term "base station" or "network node" may refer to a plurality of 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.
[0037] 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 can relay 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, or the like.
[0038] 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, or 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).
[0039] 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 backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be or may include a CU or a core network device.
[0040] 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.
[0041] 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, which 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 in 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.
[0042] 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 or air interface, etc. Frequency may be referred to as a carrier or 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.
[0043] 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.
[0044] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., according to 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–7.125 GHz) and FR2 (24.25 GHz–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–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).
[0045] 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–24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and therefore 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–71GHz), FR4 (52.6GHz–114.25GHz), and FR5 (114.25GHz–300GHz). Each of these higher frequency bands falls within the EHF band.
[0046] Considering the above examples, unless otherwise explicitly 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 lower than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise explicitly 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.
[0047] In some aspects, the UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may estimate a throughput requirement associated with communication between the UE and the network node 110; select a beam level associated with the lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement; and communicate with the network node 110 using the beam level. In some other aspects, the communication manager 140 may estimate a throughput requirement associated with communication between the UE 120 and the network node 110; generate a set of candidate beams including a corresponding candidate beam at each beam level in the plurality of beam levels, the corresponding candidate beam associated with a best beam metric based at least in part on a power lag parameter; select a candidate beam to be used for the communication among the set of candidate beams based at least in part on the throughput requirement and a time lag parameter; and communicate with the network node 110 using the candidate beam. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0048] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.
[0049] 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.
[0050] At the network node 110, a transmit processor 220 may receive data intended for a UE 120 (or a group 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 provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning 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., pre-coding) 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 further process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).
[0051] At the UE 120, a group 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 group of received signals (e.g., R received signals) to a group 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.
[0052] 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.
[0053] 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 groups of antenna elements, and / or one or more antenna arrays, etc. An antenna panel, antenna group, group of antenna elements, and / or antenna array may include one or more antenna elements (in a single housing or multiple housings), a group of coplanar antenna elements, a group of non-coplanar antenna elements, and / or 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.
[0054] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a 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 a TX MIMO processor 266, where applicable, further processed by a modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted 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, with reference to Figures 5 to 10 ) any aspects of any of the methods described herein.
[0055] 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 of the modem 232 shown as DEMOD), 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 and / or uplink communications. 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 5 to 10 ) any aspects of any of the methods described herein.
[0056] 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 beam level selection based at least in part on the throughput requirement, 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 Figure 7 The process of 700 Figure 8 800 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 that stores one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly executed, or executed after compilation, conversion, and / or interpretation), may cause the one or more processors, UE 120, and / or network node 110 to perform or direct, for example, Figure 7 The process of 700 Figure 8 The process 800 and / or operations of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.
[0057] In some aspects, the UE 120 includes: means for estimating a throughput requirement associated with communications between the UE 120 and the network node 110; means for selecting a beam level associated with the lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement; and / or means for using the beam level to communicate with the network node 110. Means for the UE 120 to perform operations described herein may include, for example, one or more of the communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0058] In some aspects, the UE 120 includes: means for estimating a throughput requirement associated with communication between the UE 120 and the network node 110; means for generating a set of candidate beams including a corresponding candidate beam at each beam level in a plurality of beam levels, the corresponding candidate beam being associated with a best beam metric based at least in part on a power lag parameter; means for selecting a candidate beam to be used for the communication in the set of candidate beams based at least in part on the throughput requirement and a time lag parameter; and / or means for communicating with the network node 110 using the candidate beam. Means for the UE 120 to perform 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.
[0059] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to 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.
[0060] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.
[0061] 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 architecture or a decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR base station, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) performing 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. A "network entity" or a "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).
[0062] 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.
[0063] 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.
[0064] Figure 3 3 is a diagram illustrating an example decomposed base station architecture 300 according to the present disclosure. The decomposed base station architecture 300 may include a CU 310, which may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed 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.
[0065] Each of these units (including CU 310, DU 330, RU 340) and near-RT RIC 325, non-RTRIC 315 and SMO framework 305) may include or be coupled to one or more interfaces, which are configured to receive or send signals, data or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of these 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 these 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 may include a receiver, a transmitter or a transceiver (such as a radio frequency (RF) transceiver), which is configured to receive signals or send signals to one or more of the other units via a wireless transmission medium, or both.
[0066] In some aspects, 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 CU 310. 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, 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, CU310 may be implemented to communicate with DU 330 for network control and signaling.
[0067] 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 medium access control (MAC) layer, and one or more high physical (PHY) layers, at least in part, depending on a functional split such as defined by 3GPP. In some aspects, the 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 (which may also be 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.
[0068] 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 (such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc.) based on a functional split such as a lower layer functional split (e.g., a functional split defined by 3GPP). In such an 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 communicating with the control plane and user plane of 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).
[0069] 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-RT RIC 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.
[0070] 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 the O-eNB with the near-RT RIC 325.
[0071] 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).
[0072] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.
[0073] Figure 4 4 is a diagram illustrating examples 400, 410, and 420 of a channel state information (CSI) reference signal (CSI-RS) beam management process according to the present disclosure. Figure 4 As shown, examples 400, 410, and 420 include UE 120 communicating with network node 110 in a wireless network (e.g., wireless network 100). Figure 4 The devices shown are provided as examples, and the wireless network may support communication and beam management between other devices (e.g., between UE 120 and network node 110 or TRP, between mobile terminal node and control node, between IAB child node and IAB parent node, and / or between scheduled node and scheduling node). In some aspects, UE 120 and network node 110 may be in a connected state (e.g., RRC connected state).
[0074] like Figure 4 As shown, example 400 may include a network node 110 (e.g., one or more network node devices such as RU, DU and / or CU, etc.) and a UE 120 communicating to perform beam management using CSI-RS. Example 400 depicts a first beam management process (e.g., P1 CSI-RS beam management). The first beam management process may be referred to as a beam selection process, an initial beam acquisition process, a beam scanning process, a cell search process, and / or a beam search process. Figure 4As shown in example 400, CSI-RS may be configured to be sent from network node 110 to UE 120. CSI-RS may be configured to be periodic (e.g., using RRC signaling), semi-persistent (e.g., using MAC control element (MAC-CE) signaling), and / or aperiodic (e.g., using downlink control information (DCI)).
[0075] The first beam management process may include the network node 110 performing beam scanning on multiple transmit (Tx) beams. The network node 110 may use each transmit beam used for beam management to transmit a CSI-RS. In order to enable the UE 120 to perform receive (Rx) beam scanning, the network node may use the transmit beam to transmit each CSI-RS multiple times (e.g., with repetitions) within the same RS resource set, so that the UE 120 can sweep the receive beam in multiple transmit instances. For example, if the network node 110 has a set of N transmit beams and the UE 120 has a set of M receive beams, the CSI-RS may be transmitted M times on each of the N transmit beams, so that the UE 120 can receive M instances of the CSI-RS per transmit beam. In other words, for each transmit beam of the network node 110, the UE 120 may perform beam scanning on the receive beam of the UE 120. Thus, the first beam management process may enable UE 120 to measure CSI-RS on different transmit beams using different receive beams to support selection of a network node 110 transmit beam / UE 120 receive beam pair. UE 120 may report the measurement results to network node 110 to enable network node 110 to select one or more beam pairs for communication between network node 110 and UE 120. Although example 400 has been described in conjunction with CSI-RS, the first beam management process may also use a synchronization signal block (SSB) to perform beam management in a similar manner as described above.
[0076] like Figure 4 As shown, example 410 may include network node 110 and UE 120 communicating to perform beam management using CSI-RS. Example 410 depicts a second beam management procedure (e.g., P2 CSI-RS beam management). The second beam management procedure may be referred to as a beam refinement procedure, a network node beam refinement procedure, a TRP beam refinement procedure, and / or a transmit beam refinement procedure. Figure 4As shown in example 410, the CSI-RS may be configured to be transmitted from the network node 110 to the UE 120. The CSI-RS may be configured to be non-periodic (e.g., using DCI). The second beam management process may include the network node 110 performing beam scanning on one or more transmit beams. The one or more transmit beams may be a subset of all transmit beams associated with the network node 110 (e.g., determined at least in part based on the measurement results reported by the UE 120 in conjunction with the first beam management process). The network node 110 may transmit the CSI-RS using each of the one or more transmit beams used for beam management. The UE 120 may measure each CSI-RS using a single (e.g., the same) receive beam (e.g., determined at least in part based on the measurement performed in conjunction with the first beam management process). The second beam management process may enable the network node 110 to select the best transmit beam based at least in part on the measurement results of the CSI-RS reported by the UE 120 (e.g., measured by the UE 120 using a single receive beam).
[0077] like Figure 4 As shown, example 420 depicts a third beam management process (e.g., P3 CSI-RS beam management). The third beam management process may be referred to as a beam refinement process, a UE beam refinement process, and / or a receive beam refinement process. Figure 4 As shown in example 420, one or more CSI-RS may be configured to be sent from the network node 110 to the UE 120. The CSI-RS may be configured to be non-periodic (e.g., using DCI). The third beam management process may include the network node 110 sending the one or more CSI-RS using a single transmit beam (e.g., determined at least in part based on measurement results reported by the UE 120 in conjunction with the first beam management process and / or the second beam management process). In order to enable the UE 120 to perform receive beam scanning, the network node may use the transmit beam to send the CSI-RS multiple times (e.g., with repetitions) within the same RS resource set, so that the UE 120 can sweep across one or more receive beams in multiple transmission instances. The one or more receive beams may be a subset of all receive beams associated with the UE 120 (e.g., determined at least in part based on measurements performed in conjunction with the first beam management process and / or the second beam management process). The third beam management process may enable the network node 110 and / or the UE 120 to select the best receive beam based at least in part on reported measurement results received from the UE 120 (e.g., the reported measurement results are measurements of the CSI-RS of the transmit beam using the one or more receive beams).
[0078] In some cases, beamforming may be useful in millimeter wave (mmW) bands or similar high frequency bands because such bands may suffer from high propagation losses that may be offset by using narrow beams at UE 120 and / or at network node 110. In such aspects, UE 120 may select a receive beam and / or a transmit beam to optimize reception of a signal of network node 110 at UE 120 during a downlink and / or to optimize reception of a signal of UE 120 at network node 110 during an uplink. In some examples, UE 120 may select a beam level (corresponding to the number n of antenna elements used to generate a receive beam or a transmit beam) based at least in part on performance requirements, such as throughput requirements associated with communications between UE 120 and network node 110. In some cases, throughput may be proportional to the number of antenna elements used (e.g., n). Thus, in some cases, UE 120 may select a candidate beam associated with a maximum number (e.g., a maximum of n) of antenna elements in order to achieve a maximum possible beamforming gain. However, the power consumption and thermal cost of UE 120 may also be proportional to the number of antenna elements used. Thus, by selecting the maximum number of antenna elements (eg, by selecting the highest beam level available), UE 120 may experience high power consumption and thermal cost.
[0079] In addition, in some cases, UE 120 may need to switch between beams in order to maintain high-speed communication and smooth uplink communication and / or downlink communication. Therefore, UE 120 may measure one or more metrics (such as RSRP, signal-to-noise ratio (SNR) or similar metrics) to determine the best beam (e.g., the beam associated with the best metric) for communicating with network node 110. In order to avoid frequent switching between beams (sometimes referred to as ping-pong beam switching), UE 120 may take hysteresis into account when evaluating whether to switch to a new beam (e.g., by performing beam switching based at least in part on a power hysteresis parameter). However, by applying such a power hysteresis parameter, UE 120 may not select a lower beam level and / or a beam associated with a lower power level (even if the lower beam level and / or the beam associated with a lower power level can meet the performance requirements) because the measured metric (e.g., RSRP or SNR, etc.) may be worse than the metric associated with the current beam and / or beam level, and therefore the power hysteresis requirement cannot be met. Therefore, UE 120 may continue to use higher order beams and / or higher power consumption beams even when lower order beams and / or lower power consumption beams would meet performance requirements. Always using higher order beams and / or higher power consumption beams may result in unnecessary power consumption and high thermal costs.
[0080] Some techniques and apparatus described herein enable a UE to select a beam associated with lower power consumption and / or a beam associated with a measured metric that otherwise fails to meet a power hysteresis parameter, so as to reduce power consumption while maintaining certain performance requirements (such as throughput requirements). For example, in some aspects, a UE (e.g., UE 120) may estimate a throughput requirement associated with communication between the UE and a network node (e.g., network node 110), and may select a beam level that can meet the throughput requirement. In some aspects, the UE may select a beam level associated with the lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement. Additionally or alternatively, the UE may select a beam level that can meet the throughput requirement based at least in part on a time hysteresis parameter rather than a power hysteresis parameter, so that the UE may switch to a beam associated with a poorer measured metric (e.g., a lower RSRP, SNR, or similar metric) to reduce power consumption. Thus, the UE 120 may reduce power consumption and thermal costs, and otherwise more efficiently use power resources, computing resources, and network resources to operate.
[0081] As indicated above, Figure 4 is provided as an example of a beam management process. Other examples of beam management processes may be found with respect to Figure 4 For example, UE 120 and network node 110 may perform the third beam management procedure before performing the second beam management procedure, and / or UE 120 and network node 110 may perform a similar beam management procedure to select a UE transmit beam.
[0082] Figure 5 is a diagram of an example 500 associated with beam level selection based at least in part on throughput requirements according to the present disclosure. Figure 5 As shown, a network node 110 (e.g., a CU, DU, and / or RU) may communicate with a UE 120. In some aspects, the network node 110 and the UE 120 may be part of a wireless network (e.g., the wireless network 100). The UE 120 and the network node 110 may be in communication with each other. Figure 5 The wireless connection has been established before the operation shown. For example, UE 120 and network node 110 can be connected via the above-mentioned Figure 4 One or more of the beamforming management processes have established a wireless connection.
[0083] As indicated by reference numeral 505, the network node 110 may send, and the UE 120 may receive, the configuration information. In some aspects, the UE 120 may receive the configuration information via one or more of RRC signaling, one or more MAC-CEs, and / or DCI, etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for selection by the UE 120 (e.g., already known to the UE 120 and / or previously indicated by the network node 110 or other network device), and / or explicit configuration information for use by the UE 120 to configure the UE 120, etc.
[0084] In some aspects, the configuration information may include an indication of a bandwidth associated with communications (e.g., uplink communications and / or downlink communications) between the UE 120 and the network node 110. For example, the network node 110 may send and the UE 120 may receive an RRC configuration message indicating the bandwidth, and / or the network node 110 may send and the UE 120 may receive a MAC-CE message activating the bandwidth. The configuration information may indicate additional information associated with communications between the network node 110 and the UE 120. The UE 120 may configure itself based at least in part on the configuration information. In some aspects, the UE 120 may be configured to perform one or more operations described herein based at least in part on the configuration information.
[0085] As shown by reference numeral 510, UE 120 may estimate a throughput requirement associated with communications (e.g., uplink communications and / or downlink communications) between UE 120 and network node 110. In some aspects, estimating the throughput requirement may be based at least in part on an indication from an upper layer associated with UE 120. In some other aspects, such as when the throughput requirement is not obtained from the upper layer, UE 120 may estimate the throughput requirement based at least in part on the amount of data to be sent via the communication, based at least in part on historical throughput requirements between UE 120 and network node 110, or in other ways. For example, for uplink transmissions, UE 120 may estimate the throughput requirement based at least in part on the size of a data buffer associated with the uplink transmission. And for downlink communications, UE 120 may estimate the throughput requirement based at least in part on an average throughput associated with the number of downlink communications (such as an average downlink throughput over a period of time).
[0086] As shown in reference numeral 515, the UE 120 may determine a plurality of candidate beam levels that can meet the throughput requirement. As described above, the beam level corresponds to the number of antenna elements (e.g., n) used to generate the corresponding beam. Therefore, different beam levels are associated with different numbers of antenna elements used to generate the corresponding beam. In some aspects, the UE 120 may determine the plurality of candidate beam levels in the following manner: based at least in part on a corresponding spectral efficiency (SPEFF) requirement associated with each of the plurality of candidate beam levels, based at least in part on a bandwidth associated with the communication (as described above in conjunction with reference numeral 505, which may be indicated to the UE 120 by the network node 110 via an RRC configuration message or the like) and / or based at least in part on a corresponding estimate of a duty cycle of the network node 110 associated with each of the plurality of candidate beam levels.
[0087] More specifically, in some aspects, the UE 120 may map the throughput requirement to the SPEFF requirement. More specifically, in some aspects, the throughput requirement may be equal to the duty cycle of the network node multiplied by the bandwidth and further multiplied by the SPEFF parameter (e.g., throughput=duty cycle×bandwidth (e.g., in Hz)×SPEFF). Using the SPEFF requirement required to achieve the throughput requirement, the UE 120 may determine a plurality of candidate beam levels that are capable of meeting the threshold requirement by selecting a candidate beam level associated with a SPEFF parameter that is greater than or equal to the SPEFF requirement (e.g., by selecting a candidate beam level associated with a SPEFF parameter that is greater than or equal to the throughput requirement when multiplied by the duty cycle and the bandwidth, as described in more detail below in conjunction with reference numeral 525).
[0088] In some aspects, the UE 120 may estimate the duty cycle associated with each beam level. For example, a corresponding estimate of the duty cycle of the network node 110 associated with each of the plurality of candidate beam levels may be based at least in part on a corresponding past duty cycle of the network node 110 associated with each of the plurality of candidate beam levels. In other words, if the network node 110 regularly uses a particular duty cycle for a particular beam level, the UE 120 may determine that if there is no beam level change, it is likely that the duty cycle will be used in an upcoming grant, and may therefore estimate the duty cycle based at least in part on the past duty cycle.
[0089] As indicated by reference numeral 520, the UE 120 may estimate corresponding power consumption associated with each of the plurality of candidate beam levels. In some aspects, the UE 120 may estimate corresponding power consumption associated with each of the plurality of candidate beam levels based at least in part on an estimated consumed power associated with the corresponding candidate beam level (which, in some aspects, may be based at least in part on a consumed power lookup table, as described in greater detail below) and an estimated duty cycle associated with the corresponding beam level (e.g., power consumption may be equal to a consumed power parameter associated with the n antenna elements multiplied by the duty cycle associated with the n antenna elements).
[0090] In some aspects, estimating the consumed power is based at least in part on a consumed power lookup table. More specifically, the UE 120 may be configured, preconfigured, hard-coded, or otherwise provided with a consumed power lookup table that may associate one or more power consumption parameters with a beam level, a number of antenna elements (e.g., n), and / or a frequency band, etc. In some aspects, using a higher beam level (e.g., using more antenna elements) may result in reduced power consumption of the UE 120 compared to using a lower beam level (e.g., using fewer antenna elements). This may be because when the UE 120 selects a lower beam level (e.g., a beam associated with a relatively low number of antenna elements), the network node 110 may increase the duty cycle in order to achieve a target data rate, etc., which may ultimately result in higher power consumption. Therefore, selecting the beam level associated with the lowest power consumption may not always result in the UE 120 selecting the minimum number of antenna elements that can meet the throughput requirement.
[0091] For example, in some aspects, UE 120 may be able to communicate using one of three different beam levels (sometimes referred to as L1, L2, and L3), where L1 corresponds to a beam associated with a minimum number of antenna elements and L3 corresponds to a beam associated with a maximum number of antenna elements. In such aspects, under some conditions, L1 may be associated with the lowest power consumption; under other conditions, L2 may be associated with the lowest power consumption; and under still other conditions, L3 may be associated with the lowest power consumption. More specifically, in the downlink, L3 may result in the lowest power consumption for communications associated with relatively low SNRs (e.g., SNRs less than about 2.5); L2 may result in the lowest power consumption for communications associated with mid-range SNRs (e.g., SNRs greater than about 2.5 and less than about 17); and L1 may result in the lowest power consumption for communications associated with relatively high SNRs (e.g., SNRs greater than about 17). In the uplink, L2 may result in the lowest power consumption for communications associated with relatively low SNRs (e.g., SNRs less than approximately 2.5); and L1 may result in the lowest power consumption for communications associated with mid-range SNRs and relatively high SNRs (e.g., SNRs greater than approximately 2.5).
[0092] As shown in reference numeral 525, the UE 120 may select a beam level from a plurality of candidate beam levels that can meet a throughput requirement based at least in part on the beam level being associated with the lowest power consumption. In this way, the UE 120 may save power resources and thermal costs compared to an example in which the UE 120 always selects a beam that can meet a throughput requirement or other performance requirement associated with a minimum number or a maximum number of antenna elements, etc. More specifically, in some aspects, the UE 120 may select a beam level associated with a minimum product (sometimes referred to as argmin_n) of the following items: an estimated power consumption associated with the beam level (e.g., power consumption on n antenna elements) and an estimated duty cycle associated with the beam level (e.g., an estimated duty cycle of n antenna elements). In some aspects, the UE 120 may select a beam level associated with a minimum product (e.g., argmin_n) of the following items: an estimated power consumption associated with the beam level and an estimated duty cycle associated with the beam level meeting the performance requirement (such as a throughput requirement) that can be supported. In other words, UE 120 may select a beam level associated with the lowest power consumption (e.g., associated with the minimum consumed power on n antenna elements multiplied by the estimated duty cycle of the n antenna elements), where the product of a SPEFF parameter associated with the beam level, an estimated duty cycle associated with the beam level, and a bandwidth associated with the communication is greater than or equal to the throughput requirement (e.g., where SPEFF on n antenna elements × estimated duty cycle of n antenna elements × bandwidth (e.g., in Hz) ≥ throughput requirement).
[0093] As shown by reference numeral 530, the UE 120 may communicate with the network node 110 using the selected beam level, which, as described above, may be associated with the lowest power consumption while still being able to meet a throughput requirement or similar performance requirement. In this manner, based at least in part on the UE 120 selecting the beam level associated with the lowest power consumption among a plurality of candidate beam levels that are able to meet the throughput requirement, the UE 120 and / or the network node 110 may conserve computing resources, power resources, network resources, and / or communication resources that may otherwise be consumed using other candidate beam levels, such as by always using the beam level associated with the minimum number or the maximum number of antenna elements. For example, based at least in part on the UE 120 selecting the beam level associated with the lowest power consumption among a plurality of candidate beam levels that are able to meet the throughput requirement, the UE 120 and the network node 110 may communicate with reduced power consumption and / or reduced thermal costs while still meeting an uplink data rate requirement and a downlink data rate requirement, as described.
[0094] As indicated above, Figure 5 are provided as examples. Other examples can be found in relation to Figure 5 The examples described are different.
[0095] Figure 6 6 is a diagram of another example 600 associated with beam level selection based at least in part on throughput requirements according to the present disclosure. Figure 6 As shown, a network node 110 (e.g., a CU, DU, and / or RU) may communicate with a UE 120. In some aspects, the network node 110 and the UE 120 may be part of a wireless network (e.g., the wireless network 100). The UE 120 and the network node 110 may be in communication with each other. Figure 6 The wireless connection has been established before the operation shown. For example, UE 120 and network node 110 can be connected via the above-mentioned Figure 4 One or more of the beamforming management processes have established a wireless connection.
[0096] As indicated by reference numeral 605, the network node 110 may send, and the UE 120 may receive, the configuration information. In some aspects, the UE 120 may receive the configuration information via one or more of RRC signaling, one or more MAC-CEs, and / or DCI, etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for selection by the UE 120 (e.g., already known to the UE 120 and / or previously indicated by the network node 110 or other network device), and / or explicit configuration information for use by the UE 120 to configure the UE 120, etc.
[0097] Similar to the configuration information described above in conjunction with reference numeral 505, in some aspects, the configuration information may include an indication of a bandwidth associated with communications (e.g., uplink communications and / or downlink communications) between the UE 120 and the network node 110. For example, the network node 110 may send and the UE 120 may receive an RRC configuration message indicating the bandwidth, and / or the network node 110 may send and the UE 120 may receive a MAC-CE message activating the bandwidth. The configuration information may indicate additional information associated with communications between the network node 110 and the UE 120. The UE 120 may configure itself based at least in part on the configuration information. In some aspects, the UE 120 may be configured to perform one or more operations described herein based at least in part on the configuration information.
[0098] As shown by reference numeral 610, UE 120 may estimate the throughput requirement associated with the communication between UE 120 and network node 110 in a manner similar to that described above in connection with reference numeral 510. More specifically, UE 120 may estimate the throughput requirement based at least in part on an indication from an upper layer associated with UE 120. In some other aspects, such as when the throughput requirement is not obtained from the upper layer, UE 120 may estimate the throughput requirement based at least in part on the amount of data to be sent via the communication, based at least in part on historical throughput requirements between UE 120 and network node 110, or in other ways. For example, for uplink transmissions, UE 120 may estimate the throughput requirement based at least in part on the size of a data buffer associated with the uplink transmission. And for downlink communications, UE 120 may estimate the throughput requirement based at least in part on an average throughput associated with the number of downlink communications, such as an average downlink throughput over a period of time.
[0099] As indicated by reference numeral 615, the UE 120 may periodically measure the plurality of beams at each of the plurality of beam levels (e.g., may periodically measure power levels associated with reference signals received on the plurality of beams) to determine a corresponding candidate beam associated with an optimal beam metric. The "optimal beam metric" may refer to the highest value of any beam metric that can be measured, such as the highest value of an RSRP metric, an SNR metric, an SPEFF metric, or the like. In this regard, the UE 120 may periodically measure (e.g., every 80 milliseconds) the plurality of beams associated with each of the plurality of beam levels (each beam level being associated with a different number (n) of antenna elements, such as described above in conjunction with the antenna elements). Figure 5The UE 120 may select and / or maintain a beam at each beam level based at least in part on the measured metric (e.g., the UE 120 may select and / or maintain a beam at each beam level based at least in part on the beam being associated with the best (e.g., highest) measured metric of all beams at that beam level).
[0100] In some aspects, selecting the best beam at each beam level may be based at least in part on a power hysteresis parameter. The power hysteresis parameter may be associated with a threshold amount (sometimes referred to as P, which in some aspects may be in decibels (dB)) such that a measured metric of a candidate beam must be greater than a corresponding measured metric of a current best beam by a threshold amount (e.g., P) in order for the UE 120 to select the candidate beam as the best beam for the beam level. This may avoid ping-ponging between beams at a given beam level. For example, the UE 120 may maintain a best beam associated with a given beam level and may periodically measure other beams associated with the given beam level to ensure that the best beam is not outdated. If during the periodic measurement, another beam surpasses the best beam by a threshold amount (e.g., if the other beam satisfies the power hysteresis parameter), the UE 120 may select the other beam as the best beam for the given beam level. Additionally or alternatively, in some aspects UE 120 may select the best beam at each beam level based at least in part on one or more filtering techniques.
[0101] As shown in reference numeral 620, the UE 120 may generate a set of candidate beams including a corresponding candidate beam at each beam level of the plurality of beam levels, the corresponding candidate beam being associated with a best beam metric based at least in part on a power hysteresis parameter. In other words, the UE 120 may generate a set of candidate beams including the best beam from each beam level determined by periodic beam measurement and / or based at least in part on a power hysteresis parameter, as described above in conjunction with reference numeral 615.
[0102] As shown by reference numeral 625, UE 120 may select a candidate beam to be used for communication (e.g., uplink communication or downlink communication) between UE 120 and network node 110 from the set of candidate beams based at least in part on the throughput requirement and the time lag parameter. Figure 4 and Figure 5As described, in some aspects, selecting a beam based at least in part on throughput requirements may result in switching from a beam associated with a better measured metric (e.g., a higher RSRP metric) to a beam associated with a worse measured metric (e.g., a lower RSRP metric), such as to save power resources, etc. Therefore, using a power hysteresis parameter when switching between beam levels may not be sustainable because the UE 120 will never switch to a beam level associated with a worse measured metric, thereby failing to achieve power savings benefits or other benefits as described above. However, without employing any hysteresis parameters, the UE 120 may continuously switch between beams (e.g., may experience ping-pong switching) as the measured power metric, etc., changes over time.
[0103] Thus, in some aspects, switching between beam levels is based at least in part on a time lag parameter. The time lag parameter can be associated with a threshold time period (sometimes referred to as T) such that a metric of a candidate beam level must be greater than a corresponding metric of a current beam level within a threshold amount of time (e.g., T) in order for the UE 120 to select the candidate beam level as the current beam level. This can avoid ping-pong switching between beam levels. For example, the UE 120 can switch to another beam level (e.g., using a best beam associated with the other beam level) if the other beam level is able to meet a performance requirement (e.g., a throughput requirement) within a threshold amount of time (e.g., T).
[0104] In some aspects, UE 120 may select a candidate beam based at least in part on the candidate beam being associated with a lowest beam level that can support a throughput requirement within a threshold amount of time. In other words, UE 120 may select the lowest available beam level (e.g., a beam level associated with a lowest number (n) of antenna elements) as long as the beam level can support the throughput requirement, which in some aspects may reduce power consumption and / or thermal costs.
[0105] In some aspects, selecting a beam level (e.g., selecting a candidate beam from a set of candidate beams) may be based at least in part on whether one or more beam levels can support the throughput requirement. For example, a set of candidate beams may include two beams (e.g., "beam A" and "beam B"), where beam B is associated with a lower beam level than beam A. If beam A is the current serving beam, UE 120 may measure beam A and beam B for T rounds (corresponding to a time lag parameter) to see whether beam A and / or beam B can meet the throughput requirement. In aspects where both beam A and beam B can meet the throughput requirement during each of the T rounds, UE 120 may switch from beam A to beam B (e.g., to reduce power consumption and / or thermal costs) based at least in part on beam B being associated with a lower beam level.
[0106] However, when none of the candidate beams in the set of candidate beams is able to support aspects of the throughput requirement (e.g., during each of the T rounds, both beam A and beam B are unable to meet the throughput requirement), UE 120 may select the candidate beam based at least in part on the candidate beam being associated with the highest beam metric. In other words, when none of the candidate beam levels meet the throughput requirement, UE 120 may select any one of the beams associated with the highest RSRP, the highest SNR, the highest SPEFF, or a similar measured metric.
[0107] Furthermore, in aspects where one of the beams (e.g., beam A) does not meet the throughput requirement during round T but another beam (e.g., beam B) does meet the throughput requirement, UE 120 may select a beam that can support the throughput requirement. In other words, in some aspects, UE 120 may select a candidate beam based at least in part on the candidate beam being able to support the throughput requirement and no other candidate beams in a set of candidate beams being able to support the throughput requirement.
[0108] In some aspects, a time period associated with a time lag parameter (e.g., T) may be based at least in part on the number of candidate beams in a set of candidate beams that can support the throughput requirement. For example, a first time period may be associated with the time lag parameter when more or less than one candidate beam in a set of candidate beams can support the throughput requirement; and a second time period shorter than the first time period may be associated with the time lag parameter when only one candidate beam in a set of candidate beams can support the throughput requirement. This may be because when only one candidate beam is able to support the throughput requirement, it may be more critical to quickly switch to the beam in order to ensure that a particular data rate is met, and thus a lower T may be used to support faster beam selection. However, in various situations where no beam is able to meet the throughput requirement or when each beam in a plurality of beams is able to support the throughput requirement, switching beams may not significantly affect the data rate, but may help reduce power consumption, etc., and thus a higher T may be used to avoid ping-pong switching between candidate beams.
[0109] As shown by reference numeral 630, the UE 120 may communicate with the network node 110 using the selected candidate beam, which, as described above, may be associated with the lowest beam that can meet the throughput requirement, or with the beam associated with the best measured metric when no beam level can meet the throughput requirement. In this way, based at least in part on the UE 120 selecting a candidate beam from a set of candidate beams, based at least in part on the throughput requirement and the time lag parameter, the UE 120 and / or the network node 110 (such as by always using the beam level associated with the largest number of antenna elements) may conserve computational resources, power resources, network resources, and / or communication resources that may otherwise be consumed using other candidate beams and / or beam levels. For example, based at least in part on the UE 120 selecting a candidate beam from a set of candidate beams, based at least in part on the throughput requirement and the time lag parameter, the UE 120 and the network node 110 may communicate with reduced power consumption and / or reduced thermal costs while avoiding frequent switching or ping-pong switching between candidate beams, as described.
[0110] As indicated above, Figure 6 are provided as examples. Other examples can be found in relation to Figure 6 The examples described are different.
[0111] Figure 7 7 is a diagram illustrating an example process 700 performed, for example, by a UE in accordance with the present disclosure. Example process 700 is an example in which the UE (eg, UE 120) performs operations associated with beam level selection based at least in part on throughput requirements.
[0112] like Figure 7 As shown, in some aspects, process 700 may include estimating a throughput requirement associated with communications between the UE and a network node (block 710). For example, the UE (e.g., using Fig. 9 The communication manager 140 and / or estimation component 908 depicted in FIG. 1 may estimate throughput requirements associated with communications between the UE and the network node, as described above.
[0113] like Figure 7 As further shown, in some aspects, process 700 may include selecting a beam level associated with the lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement (block 720). Fig. 9 The communication manager 140 and / or selection component 910 depicted in FIG. 1 may select a beam level associated with the lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement, as described above.
[0114] like Figure 7As further shown, in some aspects, process 700 may include: communicating with the network node using the beam level (block 730). Fig. 9 The communication manager 140, receiving component 902 and / or sending component 904 depicted in can use the beam level to communicate with the network node, as described above.
[0115] Process 700 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.
[0116] In a first aspect, estimating the throughput requirement is based at least in part on a size of a data buffer associated with an uplink transmission.
[0117] In a second aspect, alone or in combination with the first aspect, estimating the throughput requirement is based at least in part on an indication from an upper layer associated with the UE.
[0118] In a third aspect, alone or in combination with one or more of the first aspect and the second aspect, estimating the throughput requirement is based at least in part on an average throughput associated with a number of downlink communications.
[0119] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 700 includes: determining the plurality of candidate beam levels.
[0120] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, determining the plurality of candidate beam levels is based at least in part on a corresponding spectral efficiency requirement associated with each of the plurality of candidate beam levels.
[0121] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, determining the plurality of candidate beam levels is based at least in part on a bandwidth associated with the communication.
[0122] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the one or more processors are further configured to receive an indication of the bandwidth from the network node.
[0123] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, determining the plurality of candidate beam levels is based at least in part on a corresponding estimate of a duty cycle of the network node associated with each of the plurality of candidate beam levels.
[0124] In a ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the corresponding estimate of the duty cycle of the network node associated with each of the multiple candidate beam levels is based at least in part on a corresponding past duty cycle of the network node associated with each of the multiple candidate beam levels.
[0125] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, process 700 includes estimating corresponding power consumption associated with each of the plurality of candidate beam levels.
[0126] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 700 includes: selecting the beam level based at least in part on the beam level being associated with: the minimum product of an estimated consumed power associated with a corresponding candidate beam level and an estimated duty cycle associated with the corresponding beam level among a plurality of products associated with the plurality of candidate beam levels; and a product of a spectral efficiency parameter associated with the beam level, an estimated duty cycle associated with the beam level, and a bandwidth associated with the communication that is greater than or equal to the throughput requirement.
[0127] In a twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, the estimated consumed power is based at least in part on a consumed power lookup table.
[0128] although Figure 7 Example blocks of process 700 are shown, but in some aspects, process 700 may include Figure 7 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 700. Additionally or alternatively, two or more blocks of the blocks of process 700 may be performed in parallel.
[0129] Figure 8 8 is a diagram illustrating an example process 800 performed, for example, by a UE in accordance with the present disclosure. Example process 800 is an example in which the UE (eg, UE 120) performs operations associated with beam level selection based at least in part on throughput requirements.
[0130] like Figure 8 As shown, in some aspects, process 800 may include estimating a throughput requirement associated with communications between the UE and a network node (block 810). For example, the UE (e.g., using Fig.10 The communication manager 140 and / or estimation component 1008 depicted in FIG. 1 may estimate throughput requirements associated with communications between the UE and the network node, as described above.
[0131] like Figure 8 As further shown, in some aspects, process 800 may include generating a set of candidate beams including a corresponding candidate beam at each beam level of a plurality of beam levels, the corresponding candidate beam associated with a best beam metric based at least in part on a power hysteresis parameter (block 820). Fig.10 The communication manager 140 and / or beamforming component 1010 depicted in the drawings may generate a set of candidate beams including corresponding candidate beams at each of a plurality of beam levels, the corresponding candidate beams being associated with an optimal beam metric based at least in part on a power lag parameter, as described above.
[0132] like Figure 8 As further shown, in some aspects, process 800 may include: selecting a candidate beam in the set of candidate beams to be used for the communication based at least in part on the throughput requirement and the time lag parameter (block 830). Fig.10 The communication manager 140 and / or selection component 1012 depicted in FIG. 1 may select a candidate beam from the set of candidate beams to be used for the communication based at least in part on the throughput requirement and the time lag parameter, as described above.
[0133] like Figure 8 As further shown, in some aspects, process 800 may include: communicating with the network node using the candidate beam (block 840). Fig.10 The communication manager 140, receiving component 1002 and / or sending component 1004 depicted in can use the candidate beam to communicate with the network node, as described above.
[0134] Process 800 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.
[0135] In a first aspect, the best beam metric is one of a reference signal received power metric, a signal-to-noise ratio metric, or a spectral efficiency metric.
[0136] In a second aspect, alone or in combination with the first aspect, process 800 includes periodically measuring a plurality of beams at each of the plurality of beam levels to determine the corresponding candidate beam associated with the best beam metric.
[0137] In a third aspect, either alone or in combination with one or more of the first and second aspects, selecting the candidate beam is based at least in part on the candidate beam being associated with a lowest beam level capable of supporting the throughput requirement.
[0138] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, none of the set of candidate beams is able to support the throughput requirement, and the candidate beam is selected at least in part based on the candidate beam being associated with a highest best beam metric.
[0139] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the candidate beam is selected at least in part based on the candidate beam being able to support the throughput requirement and no other candidate beam in the set of candidate beams being able to support the throughput requirement.
[0140] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the time period associated with the time lag parameter is based at least in part on the number of candidate beams in a set of candidate beams that can support the throughput requirement.
[0141] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, when more or less than one candidate beam in the set of candidate beams is capable of supporting the throughput requirement, a first time period is associated with the time lag parameter; and when only one candidate beam in the set of candidate beams is capable of supporting the throughput requirement, a second time period shorter than the first time period is associated with the time lag parameter.
[0142] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 800. Additionally or alternatively, two or more blocks of the blocks of process 800 may be performed in parallel.
[0143] Fig. 9 900 is a diagram of an example apparatus 900 for wireless communication according to the present disclosure. The apparatus 900 may be a UE (e.g., UE 120), or the UE may include the apparatus 900. In some aspects, the apparatus 900 includes a receiving component 902 and a sending component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 900 may communicate with another apparatus 906 (such as UE 120, network node 110, or another wireless communication device) using the receiving component 902 and the sending component 904. As further shown, the apparatus 900 may include a communication manager 140. The communication manager 140 may include one or more of an estimation component 908, a selection component 910, or a determination component 912, etc.
[0144] In some aspects, the apparatus 900 may be configured to perform Figure 5 Additionally or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as Figure 7 The process 700. In some aspects, Fig. 9 The device 900 and / or one or more components shown may include a combination of Figure 2 One or more components of the UE 120. Additionally or alternatively, Fig. 9 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in a set of components 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 that are stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.
[0145] The receiving component 902 may receive communications from the device 906, such as reference signals, control information, data communications, or combinations thereof. The receiving component 902 may provide the received communications to one or more other components of the device 900. In some aspects, the receiving component 902 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 900. In some aspects, the receiving component 902 may include combining Figure 2 The UE 120 may include one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof.
[0146] Transmit component 904 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 906. In some aspects, one or more other components of device 900 may generate communications and may provide the generated communications to transmit component 904 for transmission to device 906. In some aspects, transmit component 904 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 906. In some aspects, transmit component 904 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 120. In some aspects, the transmit component 904 can be co-located with the receive component 902 in a transceiver.
[0147] The estimation component 908 can estimate a throughput requirement associated with communication between the UE and a network node (e.g., the network node 110). The selection component 910 can select a beam level associated with the lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement. The receiving component 902 and / or the transmitting component 904 can communicate with the network node using the beam level.
[0148] Determining component 912 can determine the plurality of candidate beam levels.
[0149] Estimation component 908 can estimate corresponding power consumption associated with each candidate beam level of the plurality of candidate beam levels.
[0150] The selection component 910 may select the beam level based at least in part on association of the beam level with: a minimum product of an estimated consumed power associated with a corresponding candidate beam level and an estimated duty cycle associated with the corresponding beam level, among a plurality of products associated with the plurality of candidate beam levels; and a product of a spectral efficiency parameter associated with the beam level, an estimated duty cycle associated with the beam level, and a bandwidth associated with the communication that is greater than or equal to the throughput requirement.
[0151] Fig. 9 The number and arrangement of components shown are provided as examples. In practice, there may be Fig. 9 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig. 9 Two or more components shown may be implemented in a single component, or Fig. 9 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig. 9 The illustrated set (one or more) of components may be described as being executable by Fig. 9 Another group of components shown performs one or more functions.
[0152] Fig.101 is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a UE (e.g., UE 120), or a UE may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a transmitting component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as UE 120, network node 110, or another wireless communication device) using receiving component 1002 and transmitting component 1004. As further shown, apparatus 1000 may include a communication manager 140. Communication manager 140 may include one or more of an estimation component 1008, a beamforming component 1010, a selection component 1012, or a measurement component 1014, etc.
[0153] In some aspects, the apparatus 1000 may be configured to perform Figure 6 Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 8 The process 800. In some aspects, Fig.10 The device 1000 and / or one or more components shown may include a combination of Figure 2 One or more components of the UE 120. Additionally or alternatively, Fig.10 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in a set of components 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 that are stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.
[0154] The receiving component 1002 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1006. The receiving component 1002 may provide the received communications to one or more other components of the device 1000. In some aspects, the receiving component 1002 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1000. In some aspects, the receiving component 1002 may include combining Figure 2 The UE 120 may include one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof.
[0155] The transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1006. In some aspects, one or more other components of the device 1000 may generate communications and may provide the generated communications to the transmitting component 1004 for transmission to the device 1006. In some aspects, the transmitting component 1004 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 1006. In some aspects, the transmitting component 1004 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 120. In some aspects, the transmit component 1004 can be co-located with the receive component 1002 in a transceiver.
[0156] The estimating component 1008 can estimate a throughput requirement associated with communication between the UE and a network node (e.g., network node 110). The beamforming component 1010 can generate a set of candidate beams including a corresponding candidate beam at each beam level in a plurality of beam levels, the corresponding candidate beam associated with an optimal beam metric based at least in part on a power lag parameter. The selecting component 1012 can select a candidate beam to be used for the communication from the set of candidate beams based at least in part on the throughput requirement and a time lag parameter. The receiving component 1002 and / or the transmitting component 1004 can communicate with the network node using the candidate beam.
[0157] The measuring component 1014 can periodically measure the plurality of beams at each of the plurality of beam levels to determine the corresponding candidate beam associated with the best beam metric.
[0158] Fig.10 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.10 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.10 Two or more components shown may be implemented in a single component, or Fig.10 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.10 The illustrated set (one or more) of components may be described as being executable by Fig.10 Another group of components shown performs one or more functions.
[0159] The following provides an overview of some aspects of the disclosure:
[0160] Aspect 1: A method of wireless communication performed by a UE, the method comprising: estimating a throughput requirement associated with communication between the UE and a network node; selecting a beam level associated with lowest power consumption from a plurality of candidate beam levels that can meet the throughput requirement; and communicating with the network node using the beam level.
[0161] Aspect 2: The method according to aspect 1, wherein estimating the throughput requirement is based at least in part on a size of a data buffer associated with an uplink transmission.
[0162] Aspect 3: The method according to any one of aspects 1 to 2, wherein estimating the throughput requirement is based at least in part on an indication from an upper layer associated with the UE.
[0163] Aspect 4: The method according to any one of aspects 1 to 3, wherein estimating the throughput requirement is based at least in part on an average throughput associated with a number of downlink communications.
[0164] Aspect 5: According to the method according to any one of aspects 1 to 4, the method further comprises: determining the multiple candidate beam levels.
[0165] Aspect 6: The method according to aspect 5, wherein determining the plurality of candidate beam levels is based at least in part on a corresponding spectral efficiency requirement associated with each of the plurality of candidate beam levels.
[0166] Aspect 7: The method according to any one of aspects 5 to 6, wherein determining the plurality of candidate beam levels is based at least in part on a bandwidth associated with the communication.
[0167] Aspect 8: The method according to aspect 7, the method further comprising: receiving an indication of bandwidth from the network node.
[0168] Aspect 9: A method according to any one of aspects 5 to 8, wherein determining the multiple candidate beam levels is at least partly based on a corresponding estimate of a duty cycle of the network node associated with each of the multiple candidate beam levels.
[0169] Aspect 10: A method according to Aspect 9, wherein the corresponding estimate of the duty cycle of the network node associated with each of the multiple candidate beam levels is at least partially based on the corresponding past duty cycle of the network node associated with each of the multiple candidate beam levels.
[0170] Aspect 11: The method according to any one of aspects 1 to 10, the method further comprising: estimating corresponding power consumption associated with each candidate beam level of the plurality of candidate beam levels.
[0171] Aspect 12: According to the method described in any one of Aspects 1 to 11, the method further includes: selecting the beam level based at least in part on the association of the beam level with the following items: the minimum product of the estimated power consumption associated with the corresponding candidate beam level and the estimated duty cycle associated with the corresponding beam level among multiple products associated with the multiple candidate beam levels; and the product of the spectral efficiency parameter associated with the beam level, the estimated duty cycle associated with the beam level, and the bandwidth associated with the communication that is greater than or equal to the throughput requirement.
[0172] Aspect 13: The method of aspect 12, wherein the estimated consumed power is based at least in part on a consumed power lookup table.
[0173] Aspect 14: A method of wireless communication performed by a UE, the method comprising: estimating a throughput requirement associated with communication between the UE and a network node; generating a set of candidate beams including corresponding candidate beams at each beam level in a plurality of beam levels, the corresponding candidate beams being associated with an optimal beam metric based at least in part on a power lag parameter; selecting a candidate beam to be used for the communication from the set of candidate beams based at least in part on the throughput requirement and a time lag parameter; and communicating with the network node using the candidate beams.
[0174] Aspect 15: The method according to aspect 14, wherein the best beam metric is one of a reference signal received power metric, a signal-to-noise ratio metric, or a spectrum efficiency metric.
[0175] Aspect 16: The method according to any one of Aspects 14 to 15, comprising: periodically measuring multiple beams at each beam level of the multiple beam levels to determine the corresponding candidate beam associated with the best beam metric.
[0176] Aspect 17: The method according to any one of aspects 14 to 16, wherein selecting the candidate beam is based at least in part on the candidate beam being associated with a lowest beam level capable of supporting the throughput requirement.
[0177] Aspect 18: A method according to any one of Aspects 14 to 17, wherein none of the set of candidate beams is able to support the throughput requirement, and wherein the selection of the candidate beam is based at least in part on the candidate beam being associated with a highest best beam metric.
[0178] Aspect 19: A method according to any one of Aspects 14 to 18, wherein selecting the candidate beam is at least partly based on the candidate beam being able to support the throughput requirement, and no other candidate beam in the set of candidate beams is able to support the throughput requirement.
[0179] Aspect 20: A method according to any one of aspects 14 to 19, wherein the time period associated with the time lag parameter is based at least in part on the number of candidate beams in a set of candidate beams that can support the throughput requirement.
[0180] Aspect 21: A method according to Aspect 20, wherein, when more or less than one candidate beam in the set of candidate beams is capable of supporting the throughput requirement, a first time period is associated with the time lag parameter; and wherein, when only one candidate beam in the set of candidate beams is capable of supporting the throughput requirement, a second time period shorter than the first time period is associated with the time lag parameter.
[0181] Aspect 22: 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 13.
[0182] Aspect 23: A device for wireless communication, the device comprising: a memory and 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 13.
[0183] Aspect 24: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 13.
[0184] Aspect 25: 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 13.
[0185] Aspect 26: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, 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 13.
[0186] Aspect 27: 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 14 to 21.
[0187] Aspect 28: A device for wireless communication, the device comprising: a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 14 to 21.
[0188] Aspect 29: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 14 to 21.
[0189] Aspect 30: 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 14 to 21.
[0190] Aspect 31: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 14 to 21.
[0191] While the foregoing disclosure provides illustration and description, it is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of these aspects.
[0192] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of 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, executables, threads of execution, processes and / or functions, etc. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by different forms of hardware and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, no reference is made to specific software codes to describe the operation and behavior of the systems and / or methods herein, because those skilled in the art will understand that software and hardware can be designed to implement the systems and / or methods based at least in part on the description herein.
[0193] As used herein, "satisfying a threshold" may mean that a value is 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, or not equal to a threshold, etc., depending on the context.
[0194] Although specific combinations of features are 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 set forth 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). As an example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other ordering of a, b and c).
[0195] Any element, action or instruction used herein should not be interpreted as key or necessary unless clearly described as such. In addition, as used herein, the articles "one" and "a kind of" are 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 "group" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If only one item is intended to be referred to, the phrase "only one" or similar terms are used. Moreover, as used herein, the term "having" etc. is intended to be an open term, which does not limit the elements they modify (for example, "having" A elements can also have B). In addition, the phrase "based on" is intended to mean "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 expressly stated otherwise (e.g., if used in conjunction with "either" or "only one of").
Claims
1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory and configured to: estimating a throughput requirement associated with communications between the UE and a network node; selecting a beam level associated with lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement; and Communicating with the network node using the beam level.
2. The UE of claim 1, wherein estimating the throughput requirement is based at least in part on a size of a data buffer associated with an uplink transmission.
3. The UE of claim 1, wherein estimating the throughput requirement is based at least in part on an indication from an upper layer associated with the UE. 4 . The UE of claim 1 , wherein estimating the throughput requirement is based at least in part on an average throughput associated with a number of downlink communications.
5. The UE of claim 1, wherein the one or more processors are further configured to determine the plurality of candidate beam levels.
6. The UE of claim 5, wherein determining the plurality of candidate beam levels is based at least in part on a corresponding spectral efficiency requirement associated with each of the plurality of candidate beam levels.
7. The UE of claim 5, wherein determining the plurality of candidate beam levels is based at least in part on a bandwidth associated with the communication.
8. The UE of claim 7, wherein the one or more processors are further configured to receive an indication of the bandwidth from the network node.
9. The UE of claim 5, wherein determining the plurality of candidate beam levels is based at least in part on a corresponding estimate of a duty cycle of the network node associated with each of the plurality of candidate beam levels.
10. The UE of claim 9, wherein the corresponding estimate of the duty cycle of the network node associated with each of the plurality of candidate beam levels is based at least in part on a corresponding past duty cycle of the network node associated with each of the plurality of candidate beam levels.
11. The UE of claim 1 , wherein the one or more processors are further configured to estimate corresponding power consumption associated with each of the plurality of candidate beam levels.
12. The UE of claim 1 , wherein the one or more processors are further configured to select the beam level based at least in part on the beam level being associated with: a minimum product of an estimated consumed power associated with a corresponding candidate beam level and an estimated duty cycle associated with the corresponding beam level among a plurality of products associated with the plurality of candidate beam levels; and A product of a spectral efficiency parameter associated with the beam level, an estimated duty cycle associated with the beam level, and a bandwidth associated with the communication that is greater than or equal to the throughput requirement.
13. The UE of claim 12, wherein the estimated consumed power is based at least in part on a consumed power lookup table.
14. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory and configured to: estimating a throughput requirement associated with communications between the UE and a network node; generating a set of candidate beams including, at each beam level of a plurality of beam levels, a corresponding candidate beam associated with a best beam metric based at least in part on a power hysteresis parameter; selecting, from the set of candidate beams, a candidate beam to be used for the communication based at least in part on the throughput requirement and a time lag parameter; as well as Communicating with the network node using the candidate beam.
15. The UE of claim 14, wherein the best beam metric is one of a reference signal received power metric, a signal-to-noise ratio metric, or a spectrum efficiency metric.
16. The UE of claim 14, wherein the one or more processors are further configured to periodically measure a plurality of beams at each of the plurality of beam levels to determine the corresponding candidate beam associated with the best beam metric.
17. The UE of claim 14, wherein selecting the candidate beam is based at least in part on the candidate beam being associated with a lowest beam level that can support the throughput requirement.
18. The UE of claim 14, wherein none of the set of candidate beams is capable of supporting the throughput requirement, and wherein selecting the candidate beam is based at least in part on the candidate beam being associated with a highest best beam metric.
19. The UE of claim 14, wherein selecting the candidate beam is based at least in part on the candidate beam being able to support the throughput requirement, and no other candidate beam in the set of candidate beams being able to support the throughput requirement.
20. The UE of claim 14, wherein a time period associated with the time lag parameter is based at least in part on a number of candidate beams in a set of candidate beams that can support the throughput requirement.
21. The UE according to claim 20, wherein: When more or less than one candidate beam from the set of candidate beams is capable of supporting the throughput requirement, a first time period is associated with the time lag parameter; and wherein, when only one candidate beam from the set of candidate beams is capable of supporting the throughput requirement, a second time period shorter than the first time period is associated with the time lag parameter.
22. A method of wireless communication performed by a user equipment (UE), the method comprising: estimating a throughput requirement associated with communications between the UE and a network node; selecting a beam level associated with lowest power consumption among a plurality of candidate beam levels that can meet the throughput requirement; and Communicating with the network node using the beam level.
23. The method according to claim 22, further comprising: The plurality of candidate beam levels are determined.
24. The method of claim 23, wherein determining the plurality of candidate beam levels is based at least in part on a corresponding estimate of a duty cycle of the network node associated with each of the plurality of candidate beam levels.
25. The method according to claim 22, further comprising: A corresponding power consumption associated with each candidate beam level of the plurality of candidate beam levels is estimated.
26. The method according to claim 22, further comprising: The beam level is selected based at least in part on being associated with: a minimum product of an estimated consumed power associated with a corresponding candidate beam level and an estimated duty cycle associated with the corresponding beam level among a plurality of products associated with the plurality of candidate beam levels; and A product of a spectral efficiency parameter associated with the beam level, an estimated duty cycle associated with the beam level, and a bandwidth associated with the communication that is greater than or equal to the throughput requirement.
27. A method of wireless communication performed by a user equipment (UE), the method comprising: estimating a throughput requirement associated with communications between the UE and a network node; generating a set of candidate beams including, at each beam level of a plurality of beam levels, a corresponding candidate beam associated with a best beam metric based at least in part on a power hysteresis parameter; selecting, from the set of candidate beams, a candidate beam to be used for the communication based at least in part on the throughput requirement and a time lag parameter; as well as Communicating with the network node using the candidate beam.
28. The method of claim 27, wherein selecting the candidate beam is based at least in part on the candidate beam being associated with a lowest beam level that can support the throughput requirement.
29. The method of claim 27, wherein none of the set of candidate beams is capable of supporting the throughput requirement, and wherein selecting the candidate beam is based at least in part on the candidate beam being associated with a highest best beam metric.
30. The method of claim 27, wherein selecting the candidate beam is based at least in part on the candidate beam being able to support the throughput requirement, and no other candidate beam in the set of candidate beams being able to support the throughput requirement.