EP4569709A1

EP4569709A1 - Configuring carrier bandwidths for communication

Info

Publication number: EP4569709A1
Application number: EP23758729.0A
Authority: EP
Inventors: Hyejung Jung; Vijay Nangia
Original assignee: Lenovo Singapore Pte Ltd
Current assignee: Lenovo Singapore Pte Ltd
Priority date: 2022-08-09
Filing date: 2023-08-09
Publication date: 2025-06-18
Also published as: GB202501134D0; GB2635995A; WO2024033840A1; CN119586067A

Abstract

Apparatuses, methods, and systems are disclosed for configuring carrier bandwidths for communication. One method (800) includes receiving (802), at a user equipment, information indicating at least one carrier configuration of a wireless communication link for SCS. Each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth. The method (800) includes receiving (804) a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. The method (800) includes communicating (806) with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS.

Description

CONFIGURING CARRIER BANDWIDTHS FOR COMMUNICATION FIELD [0001] The subject matter disclosed herein relates generally to wireless communications and more particularly relates to configuring carrier bandwidths for communication. BACKGROUND [0002] In certain wireless communications systems, excess energy may be used if an entire carrier bandwidth is used. In such systems, an amount of traffic over a carrier may also increase energy use. BRIEF SUMMARY [0003] Methods for configuring carrier bandwidths for communication are disclosed. Apparatuses and systems also perform the functions of the methods. One embodiment of a method includes receiving, at a user equipment (“UE"), information indicating at least one carrier configuration of a wireless communication link for SCS. Each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth. In some embodiments, the method includes receiving a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In certain embodiments, the method includes communicating with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS. [0004] One apparatus for configuring carrier bandwidths for communication includes a receiver to: receive information indicating at least one carrier configuration of a wireless communication link for SCS, wherein each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth; and receive a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In some embodiments, the apparatus includes a processor to communicate with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS. [0005] Another embodiment of a method for configuring carrier bandwidths for communication includes transmitting, at a network entity, information indicating at least one carrier configuration of a wireless communication link for SCS. Each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth. In some embodiments, the method includes transmitting a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In certain embodiments, the method includes communicating with a UE within a carrier bandwidth of the active carrier configuration based on the SCS. [0006] Another apparatus for configuring carrier bandwidths for communication includes a transmitter to: transmit information indicating at least one carrier configuration of a wireless communication link for SCS, wherein each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth; and transmit a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In some embodiments, the apparatus includes a processor to communicate with a UE within a carrier bandwidth of the active carrier configuration based on the SCS. BRIEF DESCRIPTION OF THE DRAWINGS [0007] A more particular description of the embodiments briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only some embodiments and are not therefore to be considered to be limiting of scope, the embodiments will be described and explained with additional specificity and detail through the use of the accompanying drawings, in which: [0008] Figure 1 is a schematic block diagram illustrating one embodiment of a wireless communication system for configuring carrier bandwidths for communication; [0009] Figure 2 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for configuring carrier bandwidths for communication; [0010] Figure 3 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for configuring carrier bandwidths for communication; [0011] Figure 4 is a diagram illustrating one embodiment of an SCS-SpecificCarrier-r18 IE; [0012] Figure 5 is a schematic block diagram illustrating one embodiment of a system having multiple carrier configurations for a given SCS; [0013] Figure 6 is a diagram illustrating one embodiment of a BWP IE; [0014] Figure 7 is a schematic block diagram illustrating one embodiment of a system having multiple bandwidth configurations for a given BWP; [0015] Figure 8 is a flow chart diagram illustrating one embodiment of a method for configuring carrier bandwidths for communication; and [0016] Figure 9 is a flow chart diagram illustrating another embodiment of a method for configuring carrier bandwidths for communication. DETAILED DESCRIPTION [0017] As will be appreciated by one skilled in the art, aspects of the embodiments may be embodied as a system, apparatus, method, or program product. Accordingly, embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc.) or an embodiment combining software and hardware aspects that may all generally be referred to herein as a “circuit,” “module” or “system.” Furthermore, embodiments may take the form of a program product embodied in one or more computer readable storage devices storing machine readable code, computer readable code, and/or program code, referred hereafter as code. The storage devices may be tangible, non-transitory, and/or non-transmission. The storage devices may not embody signals. In a certain embodiment, the storage devices only employ signals for accessing code. [0018] Certain of the functional units described in this specification may be labeled as modules, in order to more particularly emphasize their implementation independence. For example, a module may be implemented as a hardware circuit comprising custom very-large-scale integration (“VLSI”) circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like. [0019] Modules may also be implemented in code and/or software for execution by various types of processors. An identified module of code may, for instance, include one or more physical or logical blocks of executable code which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may include disparate instructions stored in different locations which, when joined logically together, include the module and achieve the stated purpose for the module. [0020] Indeed, a module of code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Similarly, operational data may be identified and illustrated herein within modules, and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different computer readable storage devices. Where a module or portions of a module are implemented in software, the software portions are stored on one or more computer readable storage devices. [0021] Any combination of one or more computer readable medium may be utilized. The computer readable medium may be a computer readable storage medium. The computer readable storage medium may be a storage device storing the code. The storage device may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. [0022] More specific examples (a non-exhaustive list) of the storage device would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (“RAM”), a read-only memory (“ROM”), an erasable programmable read-only memory (“EPROM” or Flash memory), a portable compact disc read- only memory (“CD-ROM”), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. [0023] Code for carrying out operations for embodiments may be any number of lines and may be written in any combination of one or more programming languages including an object oriented programming language such as Python, Ruby, Java, Smalltalk, C++, or the like, and conventional procedural programming languages, such as the "C" programming language, or the like, and/or machine languages such as assembly languages. The code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a local area network (“LAN”) or a wide area network (“WAN”), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider). [0024] Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment, but mean “one or more but not all embodiments” unless expressly specified otherwise. The terms “including,” “comprising,” “having,” and variations thereof mean “including but not limited to,” unless expressly specified otherwise. An enumerated listing of items does not imply that any or all of the items are mutually exclusive, unless expressly specified otherwise. The terms “a,” “an,” and “the” also refer to “one or more” unless expressly specified otherwise. [0025] Furthermore, the described features, structures, or characteristics of the embodiments may be combined in any suitable manner. In the following description, numerous specific details are provided, such as examples of programming, software modules, user selections, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc., to provide a thorough understanding of embodiments. One skilled in the relevant art will recognize, however, that embodiments may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of an embodiment. [0026] Aspects of the embodiments are described below with reference to schematic flowchart diagrams and/or schematic block diagrams of methods, apparatuses, systems, and program products according to embodiments. It will be understood that each block of the schematic flowchart diagrams and/or schematic block diagrams, and combinations of blocks in the schematic flowchart diagrams and/or schematic block diagrams, can be implemented by code. The code may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the schematic flowchart diagrams and/or schematic block diagrams block or blocks. [0027] The code may also be stored in a storage device that can direct a computer, other programmable data processing apparatus, or other devices to function in a particular manner, such that the instructions stored in the storage device produce an article of manufacture including instructions which implement the function/act specified in the schematic flowchart diagrams and/or schematic block diagrams block or blocks. [0028] The code may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the code which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. [0029] The schematic flowchart diagrams and/or schematic block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses, systems, methods and program products according to various embodiments. In this regard, each block in the schematic flowchart diagrams and/or schematic block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions of the code for implementing the specified logical function(s). [0030] It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the Figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. Other steps and methods may be conceived that are equivalent in function, logic, or effect to one or more blocks, or portions thereof, of the illustrated Figures. [0031] Although various arrow types and line types may be employed in the flowchart and/or block diagrams, they are understood not to limit the scope of the corresponding embodiments. Indeed, some arrows or other connectors may be used to indicate only the logical flow of the depicted embodiment. For instance, an arrow may indicate a waiting or monitoring period of unspecified duration between enumerated steps of the depicted embodiment. It will also be noted that each block of the block diagrams and/or flowchart diagrams, and combinations of blocks in the block diagrams and/or flowchart diagrams, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and code. [0032] The description of elements in each figure may refer to elements of proceeding figures. Like numbers refer to like elements in all figures, including alternate embodiments of like elements. [0033] Figure 1 depicts an embodiment of a wireless communication system 100 for configuring carrier bandwidths for communication. In one embodiment, the wireless communication system 100 includes remote units 102 and network units 104. Even though a specific number of remote units 102 and network units 104 are depicted in Figure 1, one of skill in the art will recognize that any number of remote units 102 and network units 104 may be included in the wireless communication system 100. [0034] In one embodiment, the remote units 102 may include computing devices, such as desktop computers, laptop computers, personal digital assistants (“PDAs”), tablet computers, smart phones, smart televisions (e.g., televisions connected to the Internet), set-top boxes, game consoles, security systems (including security cameras), vehicle on-board computers, network devices (e.g., routers, switches, modems), aerial vehicles, drones, or the like. In some embodiments, the remote units 102 include wearable devices, such as smart watches, fitness bands, optical head-mounted displays, or the like. Moreover, the remote units 102 may be referred to as subscriber units, mobiles, mobile stations, users, terminals, mobile terminals, fixed terminals, subscriber stations, UE, user terminals, a device, or by other terminology used in the art. The remote units 102 may communicate directly with one or more of the network units 104 via UL communication signals. In certain embodiments, the remote units 102 may communicate directly with other remote units 102 via sidelink communication. [0035] The network units 104 may be distributed over a geographic region. In certain embodiments, a network unit 104 may also be referred to and/or may include one or more of an access point, an access terminal, a base, a base station, a location server, a core network (“CN”), a radio network entity, a Node-B, an evolved node-B (“eNB”), a 5G node-B (“gNB”), a Home Node-B, a relay node, a device, a core network, an aerial server, a radio access node, an access point (“AP”), new radio (“NR”), a network entity, an access and mobility management function (“AMF”), a unified data management (“UDM”), a unified data repository (“UDR”), a UDM/UDR, a policy control function (“PCF”), a radio access network (“RAN”), a network slice selection function (“NSSF”), an operations, administration, and management (“OAM”), a session management function (“SMF”), a user plane function (“UPF”), an application function, an authentication server function (“AUSF”), security anchor functionality (“SEAF”), trusted non- 3GPP gateway function (“TNGF”), or by any other terminology used in the art. The network units 104 are generally part of a radio access network that includes one or more controllers communicably coupled to one or more corresponding network units 104. The radio access network is generally communicably coupled to one or more core networks, which may be coupled to other networks, like the Internet and public switched telephone networks, among other networks. These and other elements of radio access and core networks are not illustrated but are well known generally by those having ordinary skill in the art. [0036] In one implementation, the wireless communication system 100 is compliant with NR protocols standardized in third generation partnership project (“3GPP”), wherein the network unit 104 transmits using an OFDM modulation scheme on the downlink (“DL”) and the remote units 102 transmit on the uplink (“UL”) using a single-carrier frequency division multiple access (“SC-FDMA”) scheme or an orthogonal frequency division multiplexing (“OFDM”) scheme. More generally, however, the wireless communication system 100 may implement some other open or proprietary communication protocol, for example, WiMAX, institute of electrical and electronics engineers (“IEEE”) 802.11 variants, global system for mobile communications (“GSM”), general packet radio service (“GPRS”), universal mobile telecommunications system (“UMTS”), long term evolution (“LTE”) variants, code division multiple access 2000 (“CDMA2000”), Bluetooth®, ZigBee, Sigfox, among other protocols. The present disclosure is not intended to be limited to the implementation of any particular wireless communication system architecture or protocol. [0037] The network units 104 may serve a number of remote units 102 within a serving area, for example, a cell or a cell sector via a wireless communication link. The network units 104 transmit DL communication signals to serve the remote units 102 in the time, frequency, and/or spatial domain. [0038] In various embodiments, a remote unit 102 may receive information indicating at least one carrier configuration of a wireless communication link for SCS. Each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth. In some embodiments, the remote unit 102 may receive a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In certain embodiments, the remote unit 102 may communicate with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS. Accordingly, the remote unit 102 may be used for configuring carrier bandwidths for communication. [0039] In certain embodiments, a network unit 104 may transmit information indicating at least one carrier configuration of a wireless communication link for SCS. Each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth. In some embodiments, the network unit 104 may transmit a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In certain embodiments, the network unit 104 may communicate with a UE within a carrier bandwidth of the active carrier configuration based on the SCS. Accordingly, the network unit 104 may be used for configuring carrier bandwidths for communication. [0040] Figure 2 depicts one embodiment of an apparatus 200 that may be used for configuring carrier bandwidths for communication. The apparatus 200 includes one embodiment of the remote unit 102. Furthermore, the remote unit 102 may include a processor 202, a memory 204, an input device 206, a display 208, a transmitter 210, and a receiver 212. In some embodiments, the input device 206 and the display 208 are combined into a single device, such as a touchscreen. In certain embodiments, the remote unit 102 may not include any input device 206 and/or display 208. In various embodiments, the remote unit 102 may include one or more of the processor 202, the memory 204, the transmitter 210, and the receiver 212, and may not include the input device 206 and/or the display 208. [0041] The processor 202, in one embodiment, may include any known controller capable of executing computer-readable instructions and/or capable of performing logical operations. For example, the processor 202 may be a microcontroller, a microprocessor, a central processing unit (“CPU”), a graphics processing unit (“GPU”), an auxiliary processing unit, a field programmable gate array (“FPGA”), or similar programmable controller. In some embodiments, the processor 202 executes instructions stored in the memory 204 to perform the methods and routines described herein. The processor 202 is communicatively coupled to the memory 204, the input device 206, the display 208, the transmitter 210, and the receiver 212. [0042] The memory 204, in one embodiment, is a computer readable storage medium. In some embodiments, the memory 204 includes volatile computer storage media. For example, the memory 204 may include a RAM, including dynamic RAM (“DRAM”), synchronous dynamic RAM (“SDRAM”), and/or static RAM (“SRAM”). In some embodiments, the memory 204 includes non-volatile computer storage media. For example, the memory 204 may include a hard disk drive, a flash memory, or any other suitable non-volatile computer storage device. In some embodiments, the memory 204 includes both volatile and non-volatile computer storage media. In some embodiments, the memory 204 also stores program code and related data, such as an operating system or other controller algorithms operating on the remote unit 102. [0043] The input device 206, in one embodiment, may include any known computer input device including a touch panel, a button, a keyboard, a stylus, a microphone, or the like. In some embodiments, the input device 206 may be integrated with the display 208, for example, as a touchscreen or similar touch-sensitive display. In some embodiments, the input device 206 includes a touchscreen such that text may be input using a virtual keyboard displayed on the touchscreen and/or by handwriting on the touchscreen. In some embodiments, the input device 206 includes two or more different devices, such as a keyboard and a touch panel. [0044] The display 208, in one embodiment, may include any known electronically controllable display or display device. The display 208 may be designed to output visual, audible, and/or haptic signals. In some embodiments, the display 208 includes an electronic display capable of outputting visual data to a user. For example, the display 208 may include, but is not limited to, a liquid crystal display (“LCD”), a light emitting diode (“LED”) display, an organic light emitting diode (“OLED”) display, a projector, or similar display device capable of outputting images, text, or the like to a user. As another, non-limiting, example, the display 208 may include a wearable display such as a smart watch, smart glasses, a heads-up display, or the like. Further, the display 208 may be a component of a smart phone, a personal digital assistant, a television, a table computer, a notebook (laptop) computer, a personal computer, a vehicle dashboard, or the like. [0045] In certain embodiments, the display 208 includes one or more speakers for producing sound. For example, the display 208 may produce an audible alert or notification (e.g., a beep or chime). In some embodiments, the display 208 includes one or more haptic devices for producing vibrations, motion, or other haptic feedback. In some embodiments, all or portions of the display 208 may be integrated with the input device 206. For example, the input device 206 and display 208 may form a touchscreen or similar touch-sensitive display. In other embodiments, the display 208 may be located near the input device 206. [0046] In certain embodiments, the receiver 212 to: receive information indicating at least one carrier configuration of a wireless communication link for SCS, wherein each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth; and receive a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In some embodiments, the processor 202 to communicate with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS. [0047] Although only one transmitter 210 and one receiver 212 are illustrated, the remote unit 102 may have any suitable number of transmitters 210 and receivers 212. The transmitter 210 and the receiver 212 may be any suitable type of transmitters and receivers. In one embodiment, the transmitter 210 and the receiver 212 may be part of a transceiver. [0048] Figure 3 depicts one embodiment of an apparatus 300 that may be used for configuring carrier bandwidths for communication. The apparatus 300 includes one embodiment of the network unit 104. Furthermore, the network unit 104 may include a processor 302, a memory 304, an input device 306, a display 308, a transmitter 310, and a receiver 312. As may be appreciated, the processor 302, the memory 304, the input device 306, the display 308, the transmitter 310, and the receiver 312 may be substantially similar to the processor 202, the memory 204, the input device 206, the display 208, the transmitter 210, and the receiver 212 of the remote unit 102, respectively. [0049] In certain embodiments, the transmitter 310 to: transmit information indicating at least one carrier configuration of a wireless communication link for SCS, wherein each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth; and transmit a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In some embodiments, the processor 302 to communicate with a UE within a carrier bandwidth of the active carrier configuration based on the SCS. [0050] It should be noted that one or more embodiments described herein may be combined into a single embodiment. [0051] In certain embodiments, there may be network energy savings for new radio (“NR”). In some embodiments, gNB and/or UE changes may be made to improve network energy savings in terms of both base station (“BS”) transmission and reception, these changes may include: 1) information for how to achieve more efficient operation dynamically and/or semi- statically and finer granularity adaptation of transmissions and/or receptions in one or more of network energy saving techniques in time, frequency, spatial, and power domains with potential support and/or feedback from the UE, and potential UE assistance information; and/or 2) information exchange and/or coordination over network interfaces. [0052] In various embodiments, an operating radio frequency (“RF”) bandwidth of a network entity may have substantial impact on energy consumption of the network entity. Hence, reduction of the operating RF bandwidth of the network entity for light traffic may provide energy saving gains. [0053] In certain embodiments, there may be a flexible adaptation of a carrier bandwidth for network energy savings. [0054] In some embodiments, a UE configured for operation in bandwidth parts (“BWPs”) of a serving cell may be configured by higher layers for a serving cell with a set of at multiple BWPs (e.g., up to 4) for receptions by the UE (e.g., downlink (“DL”) BWP set) in a DL bandwidth by a parameter BWP-Downlink or by a parameter initialDownlinkBWP with a set of parameters configured by BWP-DownlinkCommon and BWP-DownlinkDedicated, and a set of multiple BWPs (e.g., up to 4) for transmissions by the UE (e.g., uplink (“UL”) BWP set) in an UL bandwidth by parameter BWP-Uplink or by parameter initialUplinkBWP with a set of parameters configured by BWP-UplinkCommon and BWP-UplinkDedicated. [0055] In various embodiments, for each DL BWP or UL BWP in a set of DL BWPs or UL BWPs, respectively, the UE is provided the following parameters for the serving cell: 1) a SCS by subcarrierSpacing; 2) a cyclic prefix by cyclicPrefix; 3) a common resource block (“RB”) ^_^ ^{^^} ^^{^^} ^^{^} = ^_^^^^^^^ + ^^_^^^^^ and a number of contiguous RBs ^_^ ^{^^} ^^{^^} ^ = ^_^^ provided by that indicates an offset ^^_^^^^^ and a length ^_^^ as a resource indicator value (RIV), setting ^_^ ^{^^} ^^{^^} ^ = 275 , and a value ^_^^^^^^^ provided by offsetToCarrier for the subcarrierSpacing; 4) an index in the set of DL BWPs or UL BWPs by respective BWP-Id; and/or 5) a set of BWP-common and a set of BWP-dedicated parameters by BWP-DownlinkCommon and BWP-DownlinkDedicated for the DL BWP, or BWP-UplinkCommon and BWP- UplinkDedicated for the UL BWP. [0056] In certain embodiments, if a bandwidth part indicator field is configured in a downlink control indicator (“DCI”) format, the bandwidth part indicator field value indicates an active DL BWP, from a configured DL BWP set, for DL receptions. If a bandwidth part indicator field is configured in a DCI format, the bandwidth part indicator field value indicates an active UL BWP, from a configured UL BWP set, for UL transmissions. [0057] In some embodiments, if a bandwidth part indicator field is configured in a DCI format 0_1 and indicates an active UL BWP with different subcarrier spacing (“SCS”) configuration ^, or with different number ^_^ ^{^} ^^{^} ^^{^} ^_^^,^^ of RB sets, than a current active UL BWP, the UE determines an uplink frequency domain resource allocation Type 2 based on ^′ bits and ^′ bits that are generated by independently truncating or padding the ^ most significant bits (“MSBs”) and the ^ least significant bits (“LSBs”) of the frequency domain resource assignment field of DCI format 0_1, where truncation starts from the MSBs of the X bits or the Y bits, zero- padding prepends zeros to the X bits or the Y bits, and 1) if the indicated active UL BWP has SCS configuration ^ = 1 and the current active BWP has SCS configuration ^ = 0, the ^ MSBs are truncated to ^^! = ^ − 1 bits, or if the indicated active UL BWP has SCS configuration ^ = 0 and the current active BWP has SCS configuration ^ = 1, the ^ MSBs are zero-padded to ^^! = ^ + 1 bits, a) otherwise, the ^ MSBs are unchanged; and 2) the ^ LSBs are truncated or zero-padded to &_' ⁽ ₍ ^{/0 (/0} ^′ = #log _)*+,,-. ^1& _'()*+,,-. ²³⁴ $ % _$ 56 bits where ^_^ ^{^} ^^{^} ^^{^} ^_^^,^^ is a number of RB sets configured for the indicated active UL BWP. [0058] In various embodiments, a bandwidth part indicator field may be configured in DCI formats 0_1, 0_2, 1_1, and 1_2 for dynamic switching of an active BWP as follows: 1) BWP indicator – 0, 1 or 2 bits as determined by the number of uplink (“UL”) (or DL) BWPs n ^BWP,RRC configured by higher layers, excluding the initial UL (or DL) bandwidth part - the bitwidth for this field is determined as ^{^log2( n BWP) ^} bits, where a) ^{nBWP ^ nBWP,RRC ^ 1} if ^{n BWP,RRC ^ 3} , in which case the bandwidth part to the BWP- Id, and b) otherwise n^BWP ^ n^{BWP, RRC} , in which case the bandwidth part indicator is defined in Table 1. If a UE does not support active BWP change via DCI, the UE ignores this bit field. Table 1: BWP Indicator Value of BWP indicator 1 2 3 4 [0059] In certain embodiments, such as in NR, for each numerology and carrier, a resource size grid of N , ^ g_{rid, x} N RB sc subcarriers and ^ subframe,7 symb orthogonal frequency division multiplex (“OFDM”) symbols is defined, starting at block ^ start,7, where the carrier ban size,7 grid dwidth ^grid, 8 for subcarrier spacing configuration ^ is given by layer parameter carrierBandwidth ion ^ start, and the starting posit 7 grid for subcarrier ^ is given by the higher-layer parameter SCS-SpecificCarrier information element (“IE”). There is one set of resource grids per direction (uplink, downlink, or sidelink) with the subscript : set to DL, UL, and sidelink (“SL”) for downlink, uplink, and sidelink, respectively. There is one resource grid for a given antenna port ;, subcarrier spacing configuration ^, and transmission direction (downlink, uplink, or sidelink). [0060] In one embodiment, a UE receives multiple carrier configurations for a given numerology configured in a downlink (or an uplink), where each of the multiple carrier configurations includes an offset in frequency domain between Point A (e.g., the lowest subcarrier of common RB 0) and the lowest usable subcarrier on this carrier (e.g., in number of physical resource blocks (“PRBs”)), a carrier bandwidth, and/or a location of a transmitter (“TX”) direct current (“DC”) subcarrier. Further, the UE receives a dynamic indication of an applicable carrier configuration selected from the multiple carrier configurations. In one implementation, the dynamic indication is received via a medium access control (“MAC”) control element (“CE”) or downlink control information (“DCI”). Upon applying the dynamically indicated carrier configuration, the UE does not expect to receive (or does not expect to transmit) on resources scheduled outside a carrier bandwidth of the dynamically indicated carrier configuration of the downlink (or the uplink). The UE does not receive (or does not transmit) on configured resources that are not within the carrier bandwidth of the applied carrier configuration of the downlink (or uplink). In one example, the UE is not expected to receive (or transmit) on scheduled and/or configured resources that partially overlap with the resources within the carrier bandwidth of the applied carrier configuration of the downlink (or uplink). [0061] In another implementation, a UE assumes that a dynamically indicated carrier configuration is applicable no earlier than X time units (e.g., slots, symbols) after an ending symbol (or slot) of physical downlink control channel (“PDCCH”) or physical downlink shared channel (“PDSCH”) carrying the dynamic indication of the carrier configuration. [0062] In a further implementation, an initial downlink BWP configured with a first SCS is within bandwidths of all of multiple downlink carrier configurations for the first SCS; in other words, each of the multiple downlink carrier configurations includes resources corresponding to an initial downlink BWP. Similarly, an initial uplink BWP with a second SCS is within bandwidths of all of multiple uplink carrier configurations for the second SCS; in other words, each of the multiple uplink carrier configurations includes resources corresponding to an initial uplink BWP. [0063] In one implementation, a UE receives association information between a downlink carrier configuration of multiple downlink carrier configurations and an uplink carrier configuration of multiple uplink carrier configurations and jointly updates (or determines) active downlink and uplink carrier configurations based on the association information. For example, the UE assumes that an uplink carrier and a downlink carrier with the same carrier configuration identity (“ID”) (e.g., carrierConfigId) are associated. The UE receives a dynamic indication of a carrier configuration ID and determines both an active downlink carrier configuration and an active uplink carrier configuration based on the indicated carrier configuration ID. [0064] In another implementation, a UE receives a dynamic indication of an active carrier configuration in DCI with a cyclic redundancy check (“CRC”) scrambled with a system information (“SI”)-radio network temporary identifier (“RNTI”). In one example, a validity period for the dynamic indication of the active DL (or UL) carrier configuration is configured or predefined to be the same as, a fraction of, or a multiple of a system information block type 1 (“SIB1”) repetition transmission period or a SIB1 periodicity (e.g., 160 milliseconds). In another example, the validity period of the dynamic indication is the same as, a fraction of, or a multiple of a system information (“SI”) modification period. For example, the following information is transmitted by means of a DCI format 1_0 with a CRC scrambled by an SI RNTI (“SI-RNTI”): 1) frequency domain resource assignment – ^lo DL, BWP DL, BWP DL, BWP ^^g2^(N RB ^(N RB ^{^1)/2) ^} bits (^{N RB} is the size of a control resource set (“CORESET”) 0); 2) time domain resource assignment – 4 bits; 3) VRB-to- PRB mapping – 1 bit; 4) modulation and coding scheme – 5 bits; 5) redundancy version – 2 bits; 6) system information indicator – 1 bit; 7) carrier configuration indicator – N (e.g., the number of configured SCS in a cell) bits, up to 2 pairs of UL and DL carrier configurations configured per SCS and each bit corresponding to each SCS of N configured SCS - the most significant bit (“MSB”) indicates a pair of UL and DL carrier configurations for the configured smallest SCS, and the least significant bit (“LSB”) indicates a pair of UL and DL carrier configuration for the configured largest SCS; and/or 8) reserved bits – (17-N) bits for operation in a cell with shared spectrum channel access in frequency range 1 or for operation in a cell in frequency range 2-2; otherwise (15-N) bits. [0065] In one example, a UE in an RRC_CONNECTED mode monitors a dynamic indication of an active DL (or UL) carrier configuration in PDCCH with CRC scrambled with SI- RNTI, if the UE detects paging DCI indicating a change of the active DL (or UL) carrier configuration. This can accommodate both network and UE energy savings. A short message field in paging DCI (e.g., DCI format 1_0 with CRC scrambled by a paging (“P”) RNTI (“P-RNTI”)) can be specified as follows (Bit 1 is the most significant bit): Table 2: Short Messages Bit Short Message 1 systemInfoModification g n [0066] In one implementation, a UE is configured to monitor a DCI format with a new RNTI in a common search space, where the DCI format with the new RNTI indicates active DL and UL carrier configurations for all configured SCS. [0067] In another implementation, a UE receives an indication of a default DL (or UL) carrier configuration for a given SCS. The UE assumes that the default DL (or UL) carrier configuration for the SCS is an active DL (or UL) carrier configuration for the SCS upon expiry of a validity period of a dynamic indication of an active DL (or UL) carrier configuration and until detecting a new dynamic indication. In one example, the default DL (or UL) carrier configuration can be implicitly indicated based on a DL (or UL) carrier configuration ID for the SCS (e.g., the smallest ID value or the largest ID value). Using the default DL (or UL) carrier configuration is beneficial for network energy savings. A network entity can transmit a dynamic indication of an active DL (or UL) carrier configuration only when the active DL (or UL) carrier configuration is different than the default DL (or UL) carrier configuration. [0068] Figure 4 is a diagram illustrating one embodiment of an SCS-SpecificCarrier-r18 IE 400. Specifically, Figure 4 illustrates multiple carrier configurations of different bandwidths for a given SCS in a cell. Depending on traffic loads in the cell, a network entity may change an active carrier bandwidth dynamically and indicate to the UE the active carrier bandwidth. [0069] The SCS-SpecificCarrier-r18 IE 400 provides parameters determining the location and width of the actual carrier or the carrier bandwidth. It is defined specifically for a numerology (e.g., SCS) and in relation (e.g., frequency offset) to Point A. Field descriptions for the SCS- SpecificCarrier-r18 IE 400 are shown in Table 3. Table 3: SCS-SpecificCarrier-r18 Field Descriptions carrierConfigId Id ntit f thi rri r nfi r ti n rri rC nfi . 9 t [0070] Figure 5 is a schematic block diagram illustrating one embodiment of a system 500 having multiple carrier configurations for a given SCS. The system 500 illustrates a maximum carrier bandwidth 502 having a first carrier configuration 504 (e.g., carrier config 1), a second carrier bandwidth 506 (e.g., carrier bandwidth 2) having a second carrier configuration 508 (e.g., carrier config 2), and a third carrier bandwidth 510 (e.g., carrier bandwidth 3) having a third carrier configuration 512 (carrier config 3). [0071] In certain embodiments, there may be a dynamic bandwidth adaptation within a BWP. In NR, a UE reports transmitter DC locations for configured serving cells and BWPs in a RRCReconfigurationComplete or RRCResumeComplete message if requested by a network entity. The higher-layer parameter txDirectCurrentLocation in the UplinkTxDirectCurrentBWP IE indicates a location of a transmitter DC subcarrier in the uplink for each of configured bandwidth parts, including whether the DC subcarrier location is offset by 7.5 kHz relative to the center of the indicated subcarrier or not. Values in the range 0 – 3299 represent the number of the DC subcarrier, the value 3300 indicates that the DC subcarrier is located outside the resource grid, and the value 3301 indicates that the position of the DC subcarrier in the uplink is undetermined. The frequency location of a subcarrier refers to the center frequency of that subcarrier. [0072] For a secondary serving cell (“SCell”) of a UE, the UE may be informed of a dynamic change of a carrier bandwidth via UE-specific signalling. [0073] In one embodiment, a UE receives multiple bandwidth configurations in a BWP configuration, where each of the multiple bandwidth configurations comprises information of a starting RB (and/or an ending RB) and a bandwidth. A bandwidth of each bandwidth configuration is within a first bandwidth of a first bandwidth configuration of the multiple bandwidth configurations, where the first bandwidth is the largest bandwidth among bandwidths of the multiple bandwidth configurations. The UE further dynamically receives an indication of an applicable bandwidth configuration of an active BWP via DCI or medium access control coverage element (“MAC CE”). Upon applying the dynamically indicated bandwidth configuration of the active BWP, the UE does not (or is not expected to) receive (or does not transmit) on scheduled or configured resources that are not within a bandwidth of the dynamically indicated bandwidth configuration of the active BWP. Further, the UE does not expect to receive scheduling information indicating transmission or reception on resources that are not within the bandwidth of the dynamically indicated bandwidth configuration of the active BWP. In one example, the UE is not expected to receive (or transmit) on scheduled and/or configured resources that partially overlap with the resources within the bandwidth of the dynamically indicated bandwidth configuration of the active BWP. [0074] In one implementation, an indication of an applicable bandwidth configuration of a BWP is jointly encoded with an indication of an active BWP in a DCI bitfield. For example, an extended bandwidth part indicator field is shown in Table 4. Table 4: Extended BWP Indicator Value of extended BWP indicator Bandwidth art Bandwidth of the bandwidth art p , ive UL BWP or DL BWP different from an active bandwidth of the active UL BWP or DL BWP, respectively, in a DCI format, the UE, for each information field in the DCI format: 1) if a size of an information field is smaller than the one required for the DCI format interpretation for the dynamically indicated bandwidth of the active UL BWP or DL BWP, the UE prepends zeros to the information field until its size is the one required for the interpretation of the information field for the dynamically indicated bandwidth of the active UL BWP or DL BWP prior to interpreting the DCI format information fields, respectively; and 2) if the size of the information field is larger than the one required for the DCI format interpretation for the dynamically indicated bandwidth of the active UL BWP or DL BWP, the UE uses a number of least significant bits of the DCI format equal to the one required for the dynamically indicated bandwidth of the active UL BWP or DL BWP prior to interpreting the DCI format information fields, respectively. [0076] In another implementation, if a UE receives an indication of a bandwidth of an active UL BWP or DL BWP different from an active bandwidth of the active UL BWP or DL BWP, respectively, in a DCI format, the UE assumes that a size of each information field in the DCI format is determined based on a default bandwidth of the active UL BWP or DL BWP, respectively. [0077] In a further implementation, a UE assumes that a dynamically indicated bandwidth of an active BWP without changing the active BWP is applicable from an earliest slot after a slot where DCI carrying the dynamic indication of the bandwidth of the active BWP is detected. [0078] Figure 6 is a diagram illustrating one embodiment of a BWP IE 600. The BWP IE 600 is used to configure generic parameters of a bandwidth part. Table 5: BWP Field Descriptions cyclicPrefix Indicates whether to use the extended cyclic prefix for this bandwidth part. If not set, the UE th - z ve [0079] In one example, a resource indication value (“RIV”) corresponding to a starting virtual resource block (e.g., ^{RB start} ) and a length in terms of contiguously allocated resource blocks (e.g., ^{L RBs} ) is defined by: if ^{(L ^ size} ^{RBs 1) ^ ^ NBWP /2 ^} then R^{IV ^ N} size BWP ^(LRBs ^{^ 1 ) ^ RB} start ) . [0080] Figure 7 is a schematic illustrating one embodiment of a system 700 having multiple bandwidth configurations for a given BWP. The system 700 includes a maximum carrier bandwidth 702. Moreover, the system 700 includes a BWP0704, a BWP1-BW config 1 706, and a BWP2-BW config 1 708. Furthermore, the system 700 includes a second carrier bandwidth 710 (e.g., carrier bandwidth 2), a BWP1-BW config 2712, and a BWP2-BW config 2 714. [0081] Further, Figure 7 illustrates multiple bandwidth configurations of different bandwidths in a given BWP configuration. Depending on traffic loads in the cell, a network entity may change an active carrier bandwidth dynamically and inform a UE operating in a BWP affected by the change of the active carrier bandwidth of a change of a bandwidth of the BWP via dedicated signaling (e.g., PDCCH) in a UE-specific search space. [0082] Figure 8 is a flow chart diagram illustrating one embodiment of a method 800 for configuring carrier bandwidths for communication. In some embodiments, the method 800 is performed by an apparatus, such as the remote unit 102. In certain embodiments, the method 800 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like. [0083] In various embodiments, the method 800 includes receiving 802 information indicating at least one carrier configuration of a wireless communication link for SCS. Each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth. In some embodiments, the method 800 includes receiving 804 a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In certain embodiments, the method 800 includes communicating 806 with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS. [0084] In certain embodiments, the wireless communication link comprises uplink or downlink. In some embodiments, the at least one carrier configuration comprises a plurality of downlink carrier configurations and a plurality of uplink carrier configurations for the SCS; wherein the method further comprises receiving association information between a downlink carrier configuration of the plurality of downlink carrier configurations and an uplink carrier configuration of the plurality of uplink carrier configurations; and wherein the dynamic indication jointly indicates an active downlink carrier configuration and an active uplink carrier configuration based on the association information. In various embodiments, the indicated active carrier configuration is applied no earlier than a first number of time units after an ending time unit of a physical downlink channel carrying the dynamic indication, and each time unit of the first number of time units comprises a symbol or a slot. [0085] In one embodiment, an initial BWP of the wireless communication link configured with the SCS is within the carrier bandwidth of the at least one carrier configuration of the wireless communication link for the SCS. In certain embodiments, the dynamic indication of the active carrier configuration is received in DCI with CRC scrambled with a SI-RNTI. In some embodiments, a validity period for the active carrier configuration is based on a SIB1 repetition transmission period. [0086] In various embodiments, each carrier configuration of the at least one carrier configuration comprises an offset in frequency domain between a lowest subcarrier of a lowest common resource block and a lowest usable subcarrier corresponding to the carrier configuration, a carrier bandwidth, a location of a transmitter direct current subcarrier, or some combination thereof. In one embodiment, communicating with the network entity within the carrier bandwidth of the active carrier configuration further comprises cancelling scheduled communication on a resource that is not within the carrier bandwidth of the active carrier configuration. In certain embodiments, the method 800 further comprises receiving an indication of a default carrier configuration for the SCS, wherein the default carrier configuration for the SCS is used as an active carrier configuration for the SCS upon expiry of a validity duration of the dynamic indication, upon not detecting a new dynamic indication, or a combination thereof. [0087] In some embodiments, the method 800 further comprises receiving a bandwidth part configuration, wherein the bandwidth part configuration comprises a plurality of bandwidth configurations, and each bandwidth configuration of the plurality of bandwidth configurations comprises a distinctive bandwidth. In various embodiments, the method 800 further comprises receiving a dynamic indication of an active bandwidth configuration of the bandwidth part configuration. In one embodiment, each bandwidth configuration of the plurality of bandwidth configurations is within a first bandwidth configuration of the plurality of bandwidth configurations, and the first bandwidth configuration comprises the largest bandwidth among bandwidths of the plurality of bandwidth configurations. [0088] Figure 9 is a flow chart diagram illustrating another embodiment of a method 900 for configuring carrier bandwidths for communication. In some embodiments, the method 900 is performed by an apparatus, such as the network unit 104. In certain embodiments, the method 900 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like. [0089] In various embodiments, the method 900 includes transmitting 902 information indicating at least one carrier configuration of a wireless communication link for SCS. Each carrier configuration of the at least one carrier configuration includes a distinctive carrier bandwidth. In some embodiments, the method 900 includes transmitting 904 a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS. In certain embodiments, the method 900 includes communicating 906 with a UE within a carrier bandwidth of the active carrier configuration based on the SCS. [0090] In certain embodiments, the wireless communication link comprises uplink or downlink. In some embodiments, the at least one carrier configuration comprises a plurality of downlink carrier configurations and a plurality of uplink carrier configurations for the SCS; wherein the method further comprises transmitting association information between a downlink carrier configuration of the plurality of downlink carrier configurations and an uplink carrier configuration of the plurality of uplink carrier configurations; and wherein the dynamic indication jointly indicates an active downlink carrier configuration and an active uplink carrier configuration based on the association information. In various embodiments, the indicated active carrier configuration is applied no earlier than a first number of time units after an ending time unit of a physical downlink channel carrying the dynamic indication, and each time unit of the first number of time units comprises a symbol or a slot. [0091] In one embodiment, an initial BWP of the wireless communication link configured with the SCS is within the carrier bandwidth of the at least one carrier configuration of the wireless communication link for the SCS. In certain embodiments, the dynamic indication of the active carrier configuration is transmitted in DCI with CRC scrambled with a SI-RNTI. In some embodiments, a validity period for the active carrier configuration is based on a SIB1 repetition transmission period. [0092] In various embodiments, each carrier configuration of the at least one carrier configuration comprises an offset in frequency domain between a lowest subcarrier of a lowest common resource block and a lowest usable subcarrier corresponding to the carrier configuration, a carrier bandwidth, a location of a transmitter direct current subcarrier, or some combination thereof. In one embodiment, the method 900 further comprises transmitting an indication of a default carrier configuration for the SCS, wherein the default carrier configuration for the SCS is used as an active carrier configuration for the SCS upon expiry of a validity duration of the dynamic indication, upon not detecting a new dynamic indication, or a combination thereof. [0093] In certain embodiments, the method 900 further comprises transmitting a bandwidth part configuration, wherein the bandwidth part configuration comprises a plurality of bandwidth configurations, and each bandwidth configuration of the plurality of bandwidth configurations comprises a distinctive bandwidth. In some embodiments, the method 900 further comprises transmitting a dynamic indication of an active bandwidth configuration of the bandwidth part configuration. [0094] In one embodiment, an apparatus comprises: a receiver to: receive information indicating at least one carrier configuration of a wireless communication link for SCS, wherein each carrier configuration of the at least one carrier configuration comprises a distinctive carrier bandwidth; and receive a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS; and a processor to communicate with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS. [0095] In certain embodiments, the wireless communication link comprises uplink or downlink. [0096] In some embodiments, the at least one carrier configuration comprises a plurality of downlink carrier configurations and a plurality of uplink carrier configurations for the SCS; wherein the receiver further to receive association information between a downlink carrier configuration of the plurality of downlink carrier configurations and an uplink carrier configuration of the plurality of uplink carrier configurations; and wherein the dynamic indication jointly indicates an active downlink carrier configuration and an active uplink carrier configuration based on the association information. [0097] In various embodiments, the indicated active carrier configuration is applied no earlier than a first number of time units after an ending time unit of a physical downlink channel carrying the dynamic indication, and each time unit of the first number of time units comprises a symbol or a slot. [0098] In one embodiment, an initial BWP of the wireless communication link configured with the SCS is within the carrier bandwidth of the at least one carrier configuration of the wireless communication link for the SCS. [0099] In certain embodiments, the dynamic indication of the active carrier configuration is received in DCI with CRC scrambled with a system information SI-RNTI. [0100] In some embodiments, a validity period for the active carrier configuration is based on a SIB1 repetition transmission period. [0101] In various embodiments, each carrier configuration of the at least one carrier configuration comprises an offset in frequency domain between a lowest subcarrier of a lowest common resource block and a lowest usable subcarrier corresponding to the carrier configuration, a carrier bandwidth, a location of a transmitter direct current subcarrier, or some combination thereof. [0102] In one embodiment, communicating with the network entity within the carrier bandwidth of the active carrier configuration further comprises cancelling scheduled communication on a resource that is not within the carrier bandwidth of the active carrier configuration. [0103] In certain embodiments, the receiver further to receive an indication of a default carrier configuration for the SCS, and the default carrier configuration for the SCS is used as an active carrier configuration for the SCS upon expiry of a validity duration of the dynamic indication, upon not detecting a new dynamic indication, or a combination thereof. [0104] In some embodiments, the receiver further to receive a bandwidth part configuration, and the bandwidth part configuration comprises a plurality of bandwidth configurations, and each bandwidth configuration of the plurality of bandwidth configurations comprises a distinctive bandwidth. [0105] In various embodiments, the receiver further to receive a dynamic indication of an active bandwidth configuration of the bandwidth part configuration. [0106] In one embodiment, each bandwidth configuration of the plurality of bandwidth configurations is within a first bandwidth configuration of the plurality of bandwidth configurations, and the first bandwidth configuration comprises the largest bandwidth among bandwidths of the plurality of bandwidth configurations. [0107] In one embodiment, a method at a UE, the method comprises: receiving information indicating at least one carrier configuration of a wireless communication link for SCS, wherein each carrier configuration of the at least one carrier configuration comprises a distinctive carrier bandwidth; receiving a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS; and communicating with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS. [0108] In certain embodiments, the wireless communication link comprises uplink or downlink. [0109] In some embodiments, the at least one carrier configuration comprises a plurality of downlink carrier configurations and a plurality of uplink carrier configurations for the SCS; wherein the method further comprises receiving association information between a downlink carrier configuration of the plurality of downlink carrier configurations and an uplink carrier configuration of the plurality of uplink carrier configurations; and wherein the dynamic indication jointly indicates an active downlink carrier configuration and an active uplink carrier configuration based on the association information. [0110] In various embodiments, the indicated active carrier configuration is applied no earlier than a first number of time units after an ending time unit of a physical downlink channel carrying the dynamic indication, and each time unit of the first number of time units comprises a symbol or a slot. [0111] In one embodiment, an initial BWP of the wireless communication link configured with the SCS is within the carrier bandwidth of the at least one carrier configuration of the wireless communication link for the SCS. [0112] In certain embodiments, the dynamic indication of the active carrier configuration is received in DCI with CRC scrambled with a SI-RNTI. [0113] In some embodiments, a validity period for the active carrier configuration is based on a SIB1 repetition transmission period. [0114] In various embodiments, each carrier configuration of the at least one carrier configuration comprises an offset in frequency domain between a lowest subcarrier of a lowest common resource block and a lowest usable subcarrier corresponding to the carrier configuration, a carrier bandwidth, a location of a transmitter direct current subcarrier, or some combination thereof. [0115] In one embodiment, communicating with the network entity within the carrier bandwidth of the active carrier configuration further comprises cancelling scheduled communication on a resource that is not within the carrier bandwidth of the active carrier configuration. [0116] In certain embodiments, the method further comprises receiving an indication of a default carrier configuration for the SCS, wherein the default carrier configuration for the SCS is used as an active carrier configuration for the SCS upon expiry of a validity duration of the dynamic indication, upon not detecting a new dynamic indication, or a combination thereof. [0117] In some embodiments, the method further comprises receiving a bandwidth part configuration, wherein the bandwidth part configuration comprises a plurality of bandwidth configurations, and each bandwidth configuration of the plurality of bandwidth configurations comprises a distinctive bandwidth. [0118] In various embodiments, the method further comprises receiving a dynamic indication of an active bandwidth configuration of the bandwidth part configuration. [0119] In one embodiment, each bandwidth configuration of the plurality of bandwidth configurations is within a first bandwidth configuration of the plurality of bandwidth configurations, and the first bandwidth configuration comprises the largest bandwidth among bandwidths of the plurality of bandwidth configurations. [0120] In one embodiment, an apparatus comprises: a transmitter to: transmit information indicating at least one carrier configuration of a wireless communication link for SCS, wherein each carrier configuration of the at least one carrier configuration comprises a distinctive carrier bandwidth; and transmit a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS; and a processor to communicate with a UE within a carrier bandwidth of the active carrier configuration based on the SCS. [0121] In certain embodiments, the wireless communication link comprises uplink or downlink. [0122] In some embodiments, the at least one carrier configuration comprises a plurality of downlink carrier configurations and a plurality of uplink carrier configurations for the SCS; wherein the transmitter to transmit association information between a downlink carrier configuration of the plurality of downlink carrier configurations and an uplink carrier configuration of the plurality of uplink carrier configurations; and wherein the dynamic indication jointly indicates an active downlink carrier configuration and an active uplink carrier configuration based on the association information. [0123] In various embodiments, the indicated active carrier configuration is applied no earlier than a first number of time units after an ending time unit of a physical downlink channel carrying the dynamic indication, and each time unit of the first number of time units comprises a symbol or a slot. [0124] In one embodiment, an initial BWP of the wireless communication link configured with the SCS is within the carrier bandwidth of the at least one carrier configuration of the wireless communication link for the SCS. [0125] In certain embodiments, the dynamic indication of the active carrier configuration is transmitted in DCI with CRC scrambled with a SI-RNTI. [0126] In some embodiments, a validity period for the active carrier configuration is based on a SIB1 repetition transmission period. [0127] In various embodiments, each carrier configuration of the at least one carrier configuration comprises an offset in frequency domain between a lowest subcarrier of a lowest common resource block and a lowest usable subcarrier corresponding to the carrier configuration, a carrier bandwidth, a location of a transmitter direct current subcarrier, or some combination thereof. [0128] In one embodiment, the transmitter further to transmit an indication of a default carrier configuration for the SCS, and the default carrier configuration for the SCS is used as an active carrier configuration for the SCS upon expiry of a validity duration of the dynamic indication, upon not detecting a new dynamic indication, or a combination thereof. [0129] In certain embodiments, the transmitter further to transmit a bandwidth part configuration, and the bandwidth part configuration comprises a plurality of bandwidth configurations, and each bandwidth configuration of the plurality of bandwidth configurations comprises a distinctive bandwidth. [0130] In some embodiments, the transmitter further to transmit a dynamic indication of an active bandwidth configuration of the bandwidth part configuration. [0131] In one embodiment, a method at a network entity, the method comprises: transmitting information indicating at least one carrier configuration of a wireless communication link for SCS, wherein each carrier configuration of the at least one carrier configuration comprises a distinctive carrier bandwidth; transmitting a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS; and communicating with a UE within a carrier bandwidth of the active carrier configuration based on the SCS. [0132] In certain embodiments, the wireless communication link comprises uplink or downlink. [0133] In some embodiments, the at least one carrier configuration comprises a plurality of downlink carrier configurations and a plurality of uplink carrier configurations for the SCS; wherein the method further comprises transmitting association information between a downlink carrier configuration of the plurality of downlink carrier configurations and an uplink carrier configuration of the plurality of uplink carrier configurations; and wherein the dynamic indication jointly indicates an active downlink carrier configuration and an active uplink carrier configuration based on the association information. [0134] In various embodiments, the indicated active carrier configuration is applied no earlier than a first number of time units after an ending time unit of a physical downlink channel carrying the dynamic indication, and each time unit of the first number of time units comprises a symbol or a slot. [0135] In one embodiment, an initial BWP of the wireless communication link configured with the SCS is within the carrier bandwidth of the at least one carrier configuration of the wireless communication link for the SCS. [0136] In certain embodiments, the dynamic indication of the active carrier configuration is transmitted in DCI with CRC scrambled with a SI-RNTI. [0137] In some embodiments, a validity period for the active carrier configuration is based on a SIB1 repetition transmission period. [0138] In various embodiments, each carrier configuration of the at least one carrier configuration comprises an offset in frequency domain between a lowest subcarrier of a lowest common resource block and a lowest usable subcarrier corresponding to the carrier configuration, a carrier bandwidth, a location of a transmitter direct current subcarrier, or some combination thereof. [0139] In one embodiment, the method further comprises transmitting an indication of a default carrier configuration for the SCS, wherein the default carrier configuration for the SCS is used as an active carrier configuration for the SCS upon expiry of a validity duration of the dynamic indication, upon not detecting a new dynamic indication, or a combination thereof. [0140] In certain embodiments, the method further comprises transmitting a bandwidth part configuration, wherein the bandwidth part configuration comprises a plurality of bandwidth configurations, and each bandwidth configuration of the plurality of bandwidth configurations comprises a distinctive bandwidth. [0141] In some embodiments, the method further comprises transmitting a dynamic indication of an active bandwidth configuration of the bandwidth part configuration. [0142] Embodiments may be practiced in other specific forms. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

CLAIMS 1. A user equipment (UE), comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the UE to: receive information indicating at least one carrier configuration of a wireless communication link for subcarrier spacing (SCS), wherein each carrier configuration of the at least one carrier configuration comprises a distinctive carrier bandwidth; receive a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS; and communicate with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS.

2. The UE of claim 1, wherein the wireless communication link comprises uplink or downlink.

3. The UE of claim 1: wherein the at least one carrier configuration comprises a plurality of downlink carrier configurations and a plurality of uplink carrier configurations for the SCS; wherein the at least one processor is configured to cause the UE to receive association information between a downlink carrier configuration of the plurality of downlink carrier configurations and an uplink carrier configuration of the plurality of uplink carrier configurations; and wherein the dynamic indication jointly indicates an active downlink carrier configuration and an active uplink carrier configuration based on the association information.

4. The UE of claim 1, wherein the indicated active carrier configuration is applied no earlier than a first number of time units after an ending time unit of a physical downlink channel carrying the dynamic indication, and each time unit of the first number of time units comprises a symbol or a slot.

5. The UE of claim 1, wherein an initial bandwidth part (BWP) of the wireless communication link configured with the SCS is within the carrier bandwidth of the at least one carrier configuration of the wireless communication link for the SCS.

6. The UE of claim 1, wherein the dynamic indication of the active carrier configuration is received in downlink control information (DCI) with cyclic redundancy check (CRC) scrambled with a system information (SI)-radio network temporary identifier (RNTI).

7. The UE of claim 6, wherein a validity period for the active carrier configuration is based on a system information block type 1 (SIB1) repetition transmission period.

8. The UE of claim 1, wherein each carrier configuration of the at least one carrier configuration comprises an offset in frequency domain between a lowest subcarrier of a lowest common resource block and a lowest usable subcarrier corresponding to the carrier configuration, a carrier bandwidth, a location of a transmitter direct current subcarrier, or a combination thereof.

9. The UE of claim 1, wherein communicating with the network entity within the carrier bandwidth of the active carrier configuration further comprises cancelling scheduled communication on a resource that is not within the carrier bandwidth of the active carrier configuration.

10. The UE of claim 1, wherein the at least one processer is configured to cause the UE to receive an indication of a default carrier configuration for the SCS, and the default carrier configuration for the SCS is used as an active carrier configuration for the SCS upon expiry of a validity duration of the dynamic indication, upon not detecting a new dynamic indication, or a combination thereof.

11. The UE of claim 1, wherein the at least one processer is configured to cause the UE to receive a bandwidth part configuration, and the bandwidth part configuration comprises a plurality of bandwidth configurations, and each bandwidth configuration of the plurality of bandwidth configurations comprises a distinctive bandwidth.

12. The UE of claim 11, wherein the at least one processer is configured to cause the UE to receive a dynamic indication of an active bandwidth configuration of the bandwidth part configuration.

13. The UE of claim 11, wherein each bandwidth configuration of the plurality of bandwidth configurations is within a first bandwidth configuration of the plurality of bandwidth configurations, and the first bandwidth configuration comprises the largest bandwidth among bandwidths of the plurality of bandwidth configurations.

14. A method performed by a user equipment (UE), the method comprising: receiving information indicating at least one carrier configuration of a wireless communication link for subcarrier spacing (SCS), wherein each carrier configuration of the at least one carrier configuration comprises a distinctive carrier bandwidth; receiving a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS; and communicating with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS.

15. A processor for wireless communication, comprising: at least one controller coupled with at least one memory and configured to cause the processor to: receive information indicating at least one carrier configuration of a wireless communication link for subcarrier spacing (SCS), wherein each carrier configuration of the at least one carrier configuration comprises a distinctive carrier bandwidth; receive a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS; and communicate with a network entity within a carrier bandwidth of the active carrier configuration based on the SCS.

16. An apparatus for performing a network function, the apparatus comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the apparatus to: transmit information indicating at least one carrier configuration of a wireless communication link for subcarrier spacing (SCS), wherein each carrier configuration of the at least one carrier configuration comprises a distinctive carrier bandwidth; transmit a dynamic indication indicating an active carrier configuration from the at least one carrier configuration for the SCS; and communicate with a user equipment (UE) within a carrier bandwidth of the active carrier configuration based on the SCS.

17. The apparatus of claim 16, wherein the wireless communication link comprises uplink or downlink.

18. The apparatus of claim 16: wherein the at least one carrier configuration comprises a plurality of downlink carrier configurations and a plurality of uplink carrier configurations for the SCS; wherein the at least one processer is configured to cause the apparatus to transmit association information between a downlink carrier configuration of the plurality of downlink carrier configurations and an uplink carrier configuration of the plurality of uplink carrier configurations; and wherein the dynamic indication jointly indicates an active downlink carrier configuration and an active uplink carrier configuration based on the association information.

19. The apparatus of claim 16, wherein the indicated active carrier configuration is applied no earlier than a first number of time units after an ending time unit of a physical downlink channel carrying the dynamic indication, and each time unit of the first number of time units comprises a symbol or a slot.

20. The apparatus of claim 16, wherein an initial bandwidth part (BWP) of the wireless communication link configured with the SCS is within the carrier bandwidth of the at least one carrier configuration of the wireless communication link for the SCS.