WO2023175559A1

WO2023175559A1 - Configuring measurement and reporting based on a frequency

Info

Publication number: WO2023175559A1
Application number: PCT/IB2023/052588
Authority: WO
Inventors: Hyejung Jung; Hyung-Nam Choi; Joachim Löhr
Original assignee: Lenovo (Singapore) Pte. Ltd.
Priority date: 2022-03-16
Filing date: 2023-03-16
Publication date: 2023-09-21

Abstract

Apparatuses, methods, and systems are disclosed for configuring measurement and reporting based on a frequency. One method (1000) includes selecting (1002), at a user equipment ("UE"), a cell. The method (1000) includes acquiring (1004) a system information block ("SIB") type of the cell. The SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration includes an indication of a frequency. The method (1000) includes performing (1006) a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection.

Description

CONFIGURING MEASUREMENT AND REPORTING BASED ON A FREQUENCY

FIELD

[0001] The subject matter disclosed herein relates generally to wireless communications and more particularly relates to configuring measurement and reporting based on a frequency.

BACKGROUND

[0002] In certain wireless communications networks, there may be terrestrial networks (“TNs”) and non-terrestrial networks (“NTNs”). In such networks, there may be a selection made for the TN and NTN.

BRIEF SUMMARY

[0003] Methods for configuring measurement and reporting based on a frequency are disclosed. Apparatuses and systems also perform the functions of the methods. One embodiment of a method includes selecting, at a user equipment (“UE”), a cell. In some embodiments, the method includes acquiring a system information block (“SIB”) type of the cell. The SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration includes an indication of a frequency. In certain embodiments, the method includes performing a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection.

[0004] One apparatus for configuring measurement and reporting based on a frequency includes a UE. In some embodiments, the apparatus includes a processor that: selects a cell; acquires a SIB type of the cell, wherein the SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration includes an indication of a frequency; and performs a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection.

[0005] Another embodiment of a method for configuring measurement and reporting based on a frequency includes transmitting, from a network device, a first SIB type of a cell. The first SIB type includes an indication about whether a second SIB type of the cell is to be acquired by at least one UE camping on the cell. In some embodiments, the method includes transmitting the second SIB type of the cell. The second SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection by a UE of the at least one UE camping on the cell in response to the first SIB type indicating that the second SIB type of the cell is to be acquired by the at least one UE camping on the cell.

[0006] Another apparatus for configuring measurement and reporting based on a frequency includes a network device. In some embodiments, the apparatus includes a transmitter that: transmits a first SIB type of a cell, wherein the first SIB type includes an indication about whether a second SIB type of the cell is to be acquired by at least one UE camping on the cell; and transmits the second SIB type of the cell. The second SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration includes an indication of a frequency. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection by a UE of the at least one UE camping on the cell in response to the first SIB type indicating that the second SIB type of the cell is to be acquired by the at least one UE camping on the cell.

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 measurement and reporting based on a frequency;

[0009] Figure 2 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for configuring measurement and reporting based on a frequency;

[0010] Figure 3 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for configuring measurement and reporting based on a frequency;

[0011] Figure 4 is a schematic block diagram illustrating one embodiment of a system for a deployment scenario with two NTN-based next generation (“NG”)-radio access networks (“RANs”);

[0012] Figure 5 is a schematic block diagram illustrating one embodiment of a system for a deployment scenario with TN-based and NTN-based NG-RANs;

[0013] Figure 6 is a diagram illustrating one embodiment of a SIB Type X (“SIBx”) information element (“IE”);

[0014] Figures 7A-7D are diagrams illustrating one embodiment of a MeasNTNConfigSIB

IE; [0015] Figure 8 is a diagram illustrating one embodiment of a CellResel ectionPriority IE;

[0016] Figure 9 is a diagram illustrating one embodiment of a CellResel ectionSubPriority

IE;

[0017] Figure 10 is a flow chart diagram illustrating one embodiment of a method for configuring measurement and reporting based on a frequency; and

[0018] Figure 11 is a flow chart diagram illustrating another embodiment of a method for configuring measurement and reporting based on a frequency.

DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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 readonly 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.

[0025] 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).

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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).

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Figure 1 depicts an embodiment of a wireless communication system 100 for configuring measurement and reporting based on a frequency. 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.

[0036] 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 uplink (“UL”) communication signals. In certain embodiments, the remote units 102 may communicate directly with other remote units 102 via sidelink communication.

[0037] 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 (“0AM”), a session management function (“SMF”), a user plane function (“UPF”), an application function, an authentication server function (“AUSF”), security anchor functionality (“SEAF”), trusted non- third generation partnership project (“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.

[0038] In one implementation, the wireless communication system 100 is compliant with NR protocols standardized in 3GPP, wherein the network unit 104 transmits using an orthogonal frequency division multiplexing (“OFDM”) modulation scheme on the downlink (“DL”) and the remote units 102 transmit on the UL using a single-carrier frequency division multiple access (“SC-FDMA”) scheme or an 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.

[0039] 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.

[0040] In various embodiments, a remote unit 102 may select, at a UE, a cell. In some embodiments, the remote unit 102 may acquire a SIB type of the cell. The SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration includes an indication of a frequency. In certain embodiments, the remote unit 102 may perform a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection. Accordingly, the remote unit 102 may be used for configuring measurement and reporting based on a frequency.

[0041] In certain embodiments, a network unit 104 may transmit, from a network device, a first SIB type of a cell. The first SIB type includes an indication about whether a second SIB type of the cell is to be acquired by at least one UE camping on the cell. In some embodiments, the network unit 104 may transmit the second SIB type of the cell. The second SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection by a UE of the at least one UE camping on the cell in response to the first SIB type indicating that the second SIB type of the cell is to be acquired by the at least one UE camping on the cell. Accordingly, the network unit 104 may be used for configuring measurement and reporting based on a frequency.

[0042] Figure 2 depicts one embodiment of an apparatus 200 that may be used for configuring measurement and reporting based on a frequency. 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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 (“UCD”), a light emitting diode (“FED”) display, an organic light emitting diode (“OEED”) 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.

[0047] 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.

[0048] In certain embodiments, the processor 202: selects a cell; acquires a SIB type of the cell, wherein the SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration includes an indication of a frequency; and performs a measurement based on the indicated frequency in response to acquiring the SIB type for cell re -selection. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection.

[0049] 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.

[0050] Figure 3 depicts one embodiment of an apparatus 300 that may be used for configuring measurement and reporting based on a frequency. 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.

[0051] In certain embodiments, the transmitter 310: transmits a first SIB type of a cell, wherein the first SIB type includes an indication about whether a second SIB type of the cell is to be acquired by at least one UE camping on the cell; and transmits the second SIB type of the cell. The second SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration includes an indication of a frequency. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection by a UE of the at least one UE camping on the cell in response to the first SIB type indicating that the second SIB type of the cell is to be acquired by the at least one UE camping on the cell.

[0052] It should be noted that one or more embodiments described herein may be combined into a single embodiment.

[0053] In certain embodiments, such as in rural areas, a TN based radio access may provide a limited data rate and limited reliability at a cell edge. In such embodiments, overlaying a NTN based NGRAN may be beneficial to achieve target service performances in terms of data rate and/or reliability. In underserved areas, multiple NTN-based NG-RANs with different satellite altitudes and orbits can provide partially or fully overlapped coverages.

[0054] In some embodiments, with co-depl oyment of different types of NTN-based RANs and/or co-deployment of TN-based and NTN-based RANs, optimizing a cell selection and reselection procedure for an RRC IDLE or RRC INACTIVE UE may be beneficial for UE power savings, especially for a UE in a high-speed train or a high-speed vehicle.

[0055] In various embodiments, there may be methods of cell selection and re-selection for scenarios of co-deployment of NTN and TN based RANs or of NTN and NTN based RANs.

[0056] In certain embodiments, if a UE camps on a cell, the UE may regularly search for a better cell according to a cell reselection criteria. If a better cell is found, that cell is selected. The change of cell may include a change of radio access technology (“RAT”). The UE may only perform cell reselection evaluation for new radio (“NR”) frequencies and inter-RAT frequencies that are given in system information and for which the UE has a priority provided. The UE may search for a higher priority frequency layer for cell reselection as soon as possible after a change of priority.

[0057] In some embodiments, absolute priorities of different NR frequencies or inter-RAT frequencies may be provided to a UE in system information, in an RRCRelease message, or by inheriting from another RAT at inter-RAT cell selection and/or reselection. For system information, an NR frequency or inter-RAT frequency may be listed without providing a priority (e.g., the field cellReselectionPriority is absent for that frequency). If priorities are provided in dedicated signaling, the UE may ignore all the priorities provided in system information.

[0058] In various embodiments, if a UE is camped on any cell state, the UE may only apply the priorities provided by system information from a current cell, and the UE preserves priorities provided by dedicated signaling and a deprioritisationReq received in an RRCRelease unless specified otherwise. If the UE in camped in a normal state, it only has dedicated priorities other than for a current frequency, then the UE may consider the current frequency to be the lowest priority frequency (e.g., lower than any of the network configured values). The UE may delete priorities provided by dedicated signaling if the UE enters a different RRC state (e.g., if a validity time of dedicated priorities (e.g., T320 timer) expires), the UE receives an RRCRelease message with the field cellReselectionPriorities absent, or a public land mobile network (“PLMN”) selection or stand-alone non -public network (“SNPN”) selection performed on a request by a non- access stratum (“NAS”). The UE, in RRC IDLE state, may inherit the priorities provided by dedicated signaling and the remaining validity time (e.g., T320 in NR and evolved universal terrestrial radio access (“E-UTRA”)), if configured, at inter-RAT cell selection and/or reselection.

[0059] In certain embodiments, a UE may perform location -assisted cell measurement and/or timing information based cell measurement for cell re-selection.

[0060] In some embodiments, if at-Service of a serving cell is present in a SIB, a UE may start to perform intra-frequency, inter-frequency, or inter-RAT measurements before the t-Service, regardless of the distance between the UE and the serving cell reference location or whether the serving cell fulfils Srxlev SintraSearchP and Squal SintraSearchQ, or Srxlev S no nintra Search? and Squal > SnonintraSearchQ. For a quasi-earth fixed cell (e.g., an NTN cell fixed with respect to a certain geographic area on the earth during a certain time duration), the UE may perform measurements of higher priority NR inter-frequency or inter-RAT frequencies regardless of the remaining service time of the serving cell.

[0061] In some embodiments, such as in one deployment scenario, a UE camps on a transparent NTN-based NG-RAN and may reselect a terrestrial NG-RAN, or vice versa. In such embodiments, it is assumed that an NTN gateway is located in a public land mobile network (“PLMN”) area of a terrestrial access network and that there is an Xn interface between a gNB of the NTN-based NG-RAN and a gNB of the terrestrial NG-RAN.

[0062] In various embodiments, such as in another deployment scenario, a UE camps on a transparent NTN-based NG-RAN using geostationary earth orbit (“GEO”) satellites and may reselect another transparent NTN-based NG-RAN using low earth orbit (“LEO”) satellites, or vice versa. This deployment may be applicable to provide service to UEs in unserved areas. The LEO NTN-based NG-RAN featuring relatively low latency may be suitable to support a delay of sensitive traffics while the GEO NTN-based NG-RAN may be used for serving high-mobility UEs.

[0063] In certain embodiments, such as in yet another deployment scenario, a UE camps on a regenerative NTN-based NG-RAN with gNB on board using GEO satellites and may reselect another regenerative NTN-based NG-RAN with gNB on board using LEO satellites, or vice versa. An Xn interface between on-board gNBs can be realized using inter satellite links.

[0064] In some embodiments, such as in other deployment scenarios, a UE camps on a regenerative NTN-based NG-RAN with a gNB -distributed unit (“DU”) on board and a gNB- central unit (“CU”) on the ground and may reselect a terrestrial NG-RAN, or vice versa. It is assumed that there is an Xn interface between the gNB-CU of the NTN-based NG-RAN and a gNB of the terrestrial NG-RAN. An Fl interface in the NTN-based NG-RAN may need to adapt to a much longer roundtrip time of satellite radio interface (“SRI”).

[0065] In some embodiments, enhancements may be applicable to geosynchronous orbit (“GSO”) and non-GSO (“NGSO”), for example, LEO, medium earth orbit (“MEO”), highly elliptical orbit (“HEO”), based satellite access, high altitude platform station (“HAPS”) and air to ground (“ATG”) scenarios, and fixed and mobile very-small-aperture terminal (“VSAT”), e.g., airborne and maritime.

[0066] In various embodiments, NTN and TN may either operate in two different frequency bands (e.g., one band in frequency range 1 (“FR1”) corresponding to 410 MHz - 7125 MHz and another band in frequency range 2 (“FR2”) corresponding to 24250 MHz - 52600 MHz), or in a same frequency band (e.g., a band in FR1 or FR2). Frequency division duplex (“FDD”) mode is assumed for satellite operation above 10 GHz, while time division duplex (“TDD”) mode is assumed for terrestrial operation in FR2.

[0067] In one example, a UE (e.g., outdoor handheld UEs) has TN and NTN connectivity capabilities and has omni-directional antenna type applicable to both TN and NTN connectivity. The NTN access may operate in frequency bands below or above 6 GHz. In another example, a relay UE on vehicles, ships, high speed trains, or airplanes is assumed to have TN and NTN connectivity capabilities and provides service to TN-only capable UEs outdoor or inside buildings, vehicles or trains and/or airplanes, respectively. The relay UE may have different antenna types for TN and NTN connectivity. The NTN access may operate in frequency bands below or above 6 GHz.

[0068] Figure 4 is a schematic block diagram illustrating one embodiment of a system 400 for a deployment scenario with two NTN-based NG-RANs. The system 400 includes a first gateway (gNBl) 402, a satellite 1 at time T1 404 (e.g., there is a feeder link 405 between the first gateway 402 and the satellite 1 at time T1 404), a satellite 1 at time T2 406, a second gateway (gNB2) 408, and a satellite 2410. Moreover, there is a feeder link 412 between the second gateway 408 and the satellite 2 410. The satellite 1 at time T1 404, the satellite 1 at time T2 406, and the satellite 2 410 all communicate with various UEs. [0069] Figure 5 is a schematic block diagram illustrating one embodiment of a system 500 for a deployment scenario with TN-based and NTN-based NG-RANs. The system 500 includes a satellite 502 that communicates with a gateway (gNB) 504, and multiple gNBs 506. The satellite 502 communicates with the gateway 504 via a feeder link 508.

[0070] In certain embodiments, if a UE with both TN and NTN based connectivity capabilities camps on a cell that broadcasts a SIB carrying at least one cell-specific (or system information (“SI”) area specific) measurement and reporting configuration (e.g., reporting is applicable to UEs in RRC_CONNECTED), the UE prioritizes cells and/or frequency layers indicated in the at least one cell-specific (or SI area specific) measurement and reporting configuration for cell re-selection. In one example, the UE may consider the indicated frequency layers to be the highest priority frequency for cell re-selection (e.g., higher than any of network configured cell re-selection priority values). In another example, SIB type 1 (“SIB1”) of the cell indicates whether UEs in RRC IDLE or RRC INACTIVE camping on the cell acquire the SIB carrying the at least one cell -specific (or SI area specific) measurement and reporting configuration.

[0071] In an example shown in Figure 4, satellite 1 is moving with an Earth moving beam footprint. Accordingly, UEs in a first cell provided by the statellite 1 at time T1 are expected to observe gradual cell quality degragation with satellite 1 moving away and may need to handover to a second cell provided by satellite 2 that provides a wider coverage. Since all UEs served by the first cell are likely to be handed over to the second cell eventually (e.g., when the first cell does not exist any more due to satellite 1 ’s movement, or when the cell has moved to a diffent location along satellite Us movement), a measurement and reporting configuration for the second cell can be common to all UEs served by the first cell and can be broadcast as a SIBx by the first cell. Similarly, UEs in RRC INACTIVE or RRC IDLE camping on the first cell re-selects the second cell as the first cell moves away. Thus, the UEs in RRC INACTIVE or RRC IDLE camping on the first cell can prioritize cells and/or frequency layers indicated in the broadcast measurement and reporting configuration of the SIBx for cell re-selection.

[0072] In one implementation, a UE selecting a cell upon entering RRC IDLE or RRC INACTIVE from RRC CONNECTED may consider cells and/or frequency layers indicated in a cell-specific (or SI area specific) measurement and reporting configuration of SIBx of the cell as being in the highest priority for cell re-selection, if the parameter cellReselectionPriorities is not included in an RRC release message. If the UE was served by the cell while in an RRC CONNECTED state, the UE has already acquired the up-to date SIBx and, accordingly, a network entity may not include UE-specific cell re-selection priorities, but let the UE prioritize cells and frequency layers indicated in the SIBx. [0073] In another implementation, a cell-specific (or SI area specific) measurement and reporting configuration of SIBx of a cell includes an indication of cell re-selection priority (e.g., parameter cellReselectionPriority and additionally parameter cellReselectionSubPriority) for an indicated frequency layer (e.g., parameter ssbFrequency). A UE camping on the cell may consider both priorities provided in dedicated signalling (e.g., if any) and a priority provided in the SIBx.

[0074] In some embodiments, if a UE with both TN and NTN based connectivity capabilities camps on a cell that broadcasts a SIB carrying a cell-specific (or SI area specific) measurement and reporting configuration, the UE receives an indication that a physical downlink control channel (“PDCCH”) for an SI message including the SIB is transmitted in at least one PDCCH monitoring occasion corresponding to each synchronization signal (“SS”) and/or physical broadcast channel (“PBCH”) block (“SSB”) (“SS/PBCH”) of a subset of SSBs from transmitted SSBs in a SSB burst of the cell, and the UE detects at least one SSB of the subset of SSBs, the UE prioritizes cells and/or frequency layers indicated in the cell-specific (or SI area specific) measurement and reporting configuration for cell re-selection. In one example, the UE may consider the indicated frequency layer to be the highest priority frequency for cell re-selection. In another example, a parameter ssb-PositionsInBurstforSIBx that indicates the subset of SSBs for the SIB transmission is included in SIB1.

[0075] In an example shown in Figure 5, UEs served by or camping on an overlaying NTN cell may be configured with a cell-specific (or SI area specific) measurement and reporting configuration via a broadcast system information message (e.g., including SIBx) of the NTN cell. The cell-specific (or SI area specific) measurement and reporting configuration includes an indication of a set of cells (e.g., TN cells) that have coverages overlapping with a coverage of the NTN cell. In one implementation, the NTN cell transmits a first number of SSBs in an SSB burst set and performs beam sweeping of the system information message with PDCCHs and/or physical downlink shared channel (“PDSCHs”), where each PDCCH and/or PDSCH is quasi-co-located with each SSB of a second number of SSBs of the SSB burst set, where the second number is smaller than the first number. The NTN cell provides an indication of a set of transmitted SSBs in the SSB burst set and further provides an indication of a subset of SSBs selected from the set of transmitted SSBs in the SSB burst set for beam sweeping of the SIBx, where each PDSCH carrying the system information messages is quasi-co-located with each SSB of the subset of SSBs. That is, the NTN cell may broadcast the SIBx carrying the cell-specific (or SI area specific) measurement and reporting configuration with a subset of beams selected from a set of SSB transmission beams of the NTN cell. The subset of SSBs corresponding to the subset of beams may be spatially related to coverages of the indicated set of cells (e.g., TN cells in Figure 5) in the cell-specific (or SI area specific) measurement and reporting configuration. Thus, if a UE camping on the cell detects at least one SSB of the subset of SSBs and receives and decodes a PDSCH carrying the SIBx successfully, the UE may prioritize the indicated set of cells and a corresponding frequency layer for cell re-selection. In one implementation, if a UE is configured with more frequencies than the UE can measure or report, the UE prioritizes frequencies to measure or report configured in a cell-specific (or SI area specific) measurement and reporting configuration provided by SIBx of a camped cell. In another implementation, if a UE is in high mobility state, the UE prioritizes an NTN cell over an TN cell for cell selection and re-selection. If the UE is in a low or medium mobility sate, the UE prioritize a TN cell over an NTN cell for cell selection and re-selection.

[0076] In a first example (e.g., Example 1), there may be a SIBx. The SIBx contains cellspecific (or SI area specific) neighbouring cell measurement and reporting information in RRC_CONNECTED and cell selection and/or re-selection measurement information in RRC IDLE and in RRC INACTIVE.

[0077] Figure 6 is a diagram illustrating one embodiment of a SIBx IE 600.

[0078] In a second example (e.g., Example 2), there may be a MeasNTNConfigSIB IE. The MeasNTNConfigSIB IE is used to convey information to the UE about measurements and reporting requested to be done for NTN neighboring cells while in RRC_CONNECTED and optionally measurement requested to be done in RRC IDLE and RRC INACTIVE. Criteria for triggering of an NR measurement reporting event or of a handover (“HO”) or of a conditional handover (“CHO”) or conditional primary secondary cell group (“SCG”) cell (“PSCell”) change (“CPC”) or dual active protocol stack (“DAPS”) event are included. For events labelled AN with N equal to 1, 2 and so on, measurement reporting events and CHO or CPC events are based on cell measurement results, which is derived based on SS/PBCH block. Such events may include: 1) Event Al: serving becomes better than absolute threshold; 2) Event A2: serving becomes worse than absolute threshold; 3) Event A3: neighbor becomes amount of offset better than primary cell (“PCell”) and/or PSCell; 4) Event A4: neighbor becomes better than absolute threshold; 5) Event A5 : PCell and/or PSCell becomes worse than absolute threshold 1 AND neighbor and/or secondary cell (“SCell”) becomes better than another absolute threshold 2; 6) Event A6: neighbor becomes amount of offset better than SCell; 7) CondEvent A3: conditional reconfiguration candidate becomes amount of offset better than PCell and/or PSCell; and/or 8) CondEvent A5: PCell and/or PSCell becomes worse than absolute threshold 1 AND conditional reconfiguration candidate becomes better than another absolute threshold 2. [0079] Figures 7A through 7D are diagrams illustrating one embodiment of a MeasNTNConfigSIB IE 700.

[0080] In various embodiments, there may be a measAndReporNTNCarrierNR-ID for a measurement and report configuration identity for an NR carrier. [0081] In a third example, there may be a CellReselectionPriority. A

CellReselectionPriority IE concerns an absolute priority of a concerned carrier frequency as used by a cell reselection procedure. A value 0 means a lowest priority.

[0082] Figure 8 is a diagram illustrating one embodiment of a CellReselectionPriority IE 800. [0083] In a fourth example, there may be a CellReselectionSubPriority. A

CellReselectionSubPriority IE indicates a fractional value to be added to the value of CellReselectionPriority to obtain the absolute priority of the concerned carrier frequency for E- UTRA and NR. Value oDot2 corresponds to 0.2, value oDot4 corresponds to 0.4, and so on.

[0084] Figure 9 is a diagram illustrating one embodiment of a CellReselectionSubPriority IE 900.

[0085] In a fifth example, there may be measurement rules for cell re-selection. The rules of Table 1 may be used by the UE to limit needed measurements.

Table 1

[0086] Figure 10 is a flow chart diagram illustrating one embodiment of a method 1000 for configuring measurement and reporting based on a frequency. In some embodiments, the method 1000 is performed by an apparatus, such as the remote unit 102. In certain embodiments, the method 1000 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. [0087] In various embodiments, the method 1000 includes selecting 1002, at a UE, a cell. In some embodiments, the method 1000 includes acquiring 1004 a SIB type of the cell. The SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration includes an indication of a frequency. In certain embodiments, the method 1000 includes performing 1006 a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell reselection.

[0088] In certain embodiments: selecting the cell comprises selecting the cell upon receiving a RRC release message; and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell re-selection in response to the RRC release message not including information indicating at least one cell re-selection priority. In some embodiments, the method 1000 further comprises receiving an indication of a cell re-selection priority in the at least one measurement and reporting configuration, wherein the indicated frequency in the at least one measurement and reporting configuration is set to the indicated cell re-selection priority. In various embodiments, the method 1000 further comprises: receiving at least one cell re-selection priority via dedicated signaling; and re-selecting another cell based on the cell re-selection priority of the indicated frequency and the at least one cell re-selection priority received via the dedicated signaling.

[0089] In one embodiment: the SIB type is a first SIB type; and acquiring the first SIB type comprises: acquiring a second SIB type that includes an indication about whether the first SIB type is to be acquired by at least one UE camping on the cell; and acquiring the first SIB type based on the indication about whether the first SIB type is to be acquired by the at least one UE camping on the cell. In certain embodiments, the at least one measurement and reporting configuration comprises a cell-specific or system information area specific measurement and reporting configuration applicable in response to the UE being in an RRC CONNECTED state.

[0090] In some embodiments, the method 1000 further comprises: receiving a first indication that indicates a set of SSBs in a SSB burst set, wherein the set of SSBs are transmitted by a network entity; and receiving a second indication that indicates a subset of SSBs selected from the set of SSBs, wherein a SI message including the SIB type is transmitted by the network entity based on the subset of SSBs, and the SIB type is acquired and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell- reselection in response to detecting at least one SSB of the subset of SSBs. In various embodiments, the method 1000 further comprises receiving information indicating at least one cell in the at least one measurement and reporting configuration, wherein the cell comprises a NTN cell and the at least one cell comprises a TN cell.

[0091] Figure 11 is a flow chart diagram illustrating another embodiment of a method 1100 for configuring measurement and reporting based on a frequency. In some embodiments, the method 1100 is performed by an apparatus, such as the network unit 104. In certain embodiments, the method 1100 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.

[0092] In various embodiments, the method 1100 includes transmitting 1102, from a network device, a first SIB type of a cell. The first SIB type includes an indication about whether a second SIB type of the cell is to be acquired by at least one UE camping on the cell. In some embodiments, the method 1100 includes transmitting 1104 the second SIB type of the cell. The second SIB type includes at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency. The indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection by a UE of the at least one UE camping on the cell in response to the first SIB type indicating that the second SIB type of the cell is to be acquired by the at least one UE camping on the cell.

[0093] In certain embodiments, the method 1100 further comprises: transmitting a first indication that indicates a set of SSBs in a SSB burst set, the first SIB type being transmitted by the network device based on the set of SSBs; and transmitting a second indication that indicates a subset of SSBs selected from the set of SSBs, wherein a SI message including the second SIB type is transmitted by the network device based on the subset of SSBs, and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell reselection in response to at least one SSB of the subset of SSBs being detected by the UE. In some embodiments, the method 1100 further comprises transmitting an indication of a cell re-selection priority in the at least one measurement and reporting configuration, wherein the indicated frequency in the at least one measurement and reporting configuration is set to the indicated cell re-selection priority. In various embodiments, the method 1100 further comprises transmitting at least one cell re-selection priority via dedicated signaling to the UE.

[0094] In one embodiment, the first SIB type further comprises scheduling information of the second SIB type. In certain embodiments, the at least one measurement and reporting configuration comprises a cell-specific or system information area specific measurement and reporting configuration applicable in response to the UE being in an RRC CONNECTED state. In some embodiments, the method 1100 further comprises transmitting information indicating at least one cell in the at least one measurement and reporting configuration, wherein the cell comprises aNTN cell and the at least one cell comprises a TN cell.

[0095] In one embodiment, an apparatus comprises a UE. The apparatus further comprises: a processor that: selects a cell; acquires a SIB type of the cell, wherein the SIB type comprises at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency; and performs a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection, wherein the indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection.

[0096] In certain embodiments: the processor selecting the cell comprises selecting the cell upon receiving a RRC release message; and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell re-selection in response to the RRC release message not including information indicating at least one cell reselection priority.

[0097] In some embodiments, the apparatus further comprises a receiver that receives an indication of a cell re-selection priority in the at least one measurement and reporting configuration, wherein the indicated frequency in the at least one measurement and reporting configuration is set to the indicated cell re-selection priority.

[0098] In various embodiments, the apparatus further comprises a receiver, wherein: the receiver receives at least one cell re-selection priority via dedicated signaling; and the processor re-selects another cell based on the cell re-selection priority of the indicated frequency and the at least one cell re-selection priority received via the dedicated signaling.

[0099] In one embodiment: the SIB type is a first SIB type; and the processor acquiring the first SIB type comprises the processor: acquiring a second SIB type that includes an indication about whether the first SIB type is to be acquired by at least one UE camping on the cell; and acquiring the first SIB type based on the indication about whether the first SIB type is to be acquired by the at least one UE camping on the cell.

[0100] In certain embodiments, the at least one measurement and reporting configuration comprises a cell-specific or system information area specific measurement and reporting configuration applicable in response to the UE being in an RRC CONNECTED state.

[0101] In some embodiments, the apparatus further comprises a receiver, wherein the receiver: receives a first indication that indicates a set of SSBs in a SSB burst set, wherein the set of SSBs are transmitted by anetwork entity; and receives a second indication that indicates a subset of SSBs selected from the set of SSBs, wherein a SI message including the SIB type is transmitted by the network entity based on the subset of SSBs, and the SIB type is acquired and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell-reselection in response to detecting at least one SSB of the subset of SSBs.

[0102] In various embodiments, the apparatus further comprises a receiver that receives information indicating at least one cell in the at least one measurement and reporting configuration, wherein the cell comprises a NTN cell and the at least one cell comprises a TN cell.

[0103] In one embodiment, a method in a UE comprises: selecting a cell; acquiring a SIB type of the cell, wherein the SIB type comprises at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency; and performing a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection, wherein the indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection.

[0104] In certain embodiments: selecting the cell comprises selecting the cell upon receiving a RRC release message; and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell re-selection in response to the RRC release message not including information indicating at least one cell re-selection priority.

[0105] In some embodiments, the method further comprises receiving an indication of a cell re-selection priority in the at least one measurement and reporting configuration, wherein the indicated frequency in the at least one measurement and reporting configuration is set to the indicated cell re-selection priority.

[0106] In various embodiments, the method further comprises: receiving at least one cell re-selection priority via dedicated signaling; and re-selecting another cell based on the cell reselection priority of the indicated frequency and the at least one cell re-selection priority received via the dedicated signaling.

[0107] In one embodiment: the SIB type is a first SIB type; and acquiring the first SIB type comprises: acquiring a second SIB type that includes an indication about whether the first SIB type is to be acquired by at least one UE camping on the cell; and acquiring the first SIB type based on the indication about whether the first SIB type is to be acquired by the at least one UE camping on the cell.

[0108] In certain embodiments, the at least one measurement and reporting configuration comprises a cell-specific or system information area specific measurement and reporting configuration applicable in response to the UE being in an RRC CONNECTED state. [0109] In some embodiments, the method further comprises: receiving a first indication that indicates a set of SSBs in a SSB burst set, wherein the set of SSBs are transmitted by a network entity; and receiving a second indication that indicates a subset of SSBs selected from the set of SSBs, wherein a SI message including the SIB type is transmitted by the network entity based on the subset of SSBs, and the SIB type is acquired and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell-reselection in response to detecting at least one SSB of the subset of SSBs.

[0110] In various embodiments, the method further comprises receiving information indicating at least one cell in the at least one measurement and reporting configuration, wherein the cell comprises a NTN cell and the at least one cell comprises a TN cell.

[0111] In one embodiment, an apparatus comprises a network device. The apparatus further comprises: a transmitter that: transmits a first SIB type of a cell, wherein the first SIB type comprises an indication about whether a second SIB type of the cell is to be acquired by at least one UE camping on the cell; and transmits the second SIB type of the cell, wherein the second SIB type comprises at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency; wherein the indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection by a UE of the at least one UE camping on the cell in response to the first SIB type indicating that the second SIB type of the cell is to be acquired by the at least one UE camping on the cell.

[0112] In certain embodiments, the transmitter: transmits a first indication that indicates a set of SSBs in a SSB burst set, the first SIB type being transmitted by the network device based on the set of SSBs; and transmits a second indication that indicates a subset of SSBs selected from the set of SSBs, wherein a SI message including the second SIB type is transmitted by the network device based on the subset of SSBs, and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell re-selection in response to at least one SSB of the subset of SSBs being detected by the UE.

[0113] In some embodiments, the transmitter transmits an indication of a cell re-selection priority in the at least one measurement and reporting configuration, and the indicated frequency in the at least one measurement and reporting configuration is set to the indicated cell re-selection priority.

[0114] In various embodiments, the transmitter transmits at least one cell re-selection priority via dedicated signaling to the UE. [0115] In one embodiment, the first SIB type further comprises scheduling information of the second SIB type.

[0116] In certain embodiments, the at least one measurement and reporting configuration comprises a cell-specific or system information area specific measurement and reporting configuration applicable in response to the UE being in an RRC CONNECTED state.

[0117] In some embodiments, the transmitter transmits information indicating at least one cell in the at least one measurement and reporting configuration, and the cell comprises a NTN cell and the at least one cell comprises a TN cell.

[0118] In one embodiment, a method in a network device comprises: transmitting a first SIB type of a cell, wherein the first SIB type comprises an indication about whether a second SIB type of the cell is to be acquired by at least one UE camping on the cell; and transmitting the second SIB type of the cell, wherein the second SIB type comprises at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency; wherein the indicated frequency in the at least one measurement and reporting configuration is set to a highest priority for cell re-selection by a UE of the at least one UE camping on the cell in response to the first SIB type indicating that the second SIB type of the cell is to be acquired by the at least one UE camping on the cell.

[0119] In certain embodiments, the method further comprises: transmitting a first indication that indicates a set of SSBs in a SSB burst set, the first SIB type being transmitted by the network device based on the set of SSBs; and transmitting a second indication that indicates a subset of SSBs selected from the set of SSBs, wherein a SI message including the second SIB type is transmitted by the network device based on the subset of SSBs, and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell reselection in response to at least one SSB of the subset of SSBs being detected by the UE.

[0120] In some embodiments, the method further comprises transmitting an indication of a cell re-selection priority in the at least one measurement and reporting configuration, wherein the indicated frequency in the at least one measurement and reporting configuration is set to the indicated cell re-selection priority.

[0121] In various embodiments, the method further comprises transmitting at least one cell re-selection priority via dedicated signaling to the UE.

[0122] In one embodiment, the first SIB type further comprises scheduling information of the second SIB type. [0123] In certain embodiments, the at least one measurement and reporting configuration comprises a cell-specific or system information area specific measurement and reporting configuration applicable in response to the UE being in an RRC CONNECTED state.

[0124] In some embodiments, the method further comprises transmitting information indicating at least one cell in the at least one measurement and reporting configuration, wherein the cell comprises a NTN cell and the at least one cell comprises a TN cell.

[0125] 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

1 . An apparatus comprising: a processor; and a memory coupled to the processor, the memory comprising instructions executable by the processor to cause the apparatus to: select a cell; acquire a system information block (SIB) type of the cell, wherein the SIB type comprises at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency; perform a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection; and set the indicated frequency in the at least one measurement and reporting configuration to a highest priority for cell re-selection.

2. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: select the cell comprises selecting the cell upon receiving a radio resource control (RRC) release message; and set the indicated frequency in the at least one measurement and reporting configuration to the highest priority for cell re-selection in response to the RRC release message not including information indicating at least one cell re -selection priority.

3. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to receive an indication of a cell re-selection priority in the at least one measurement and reporting configuration, and set the indicated frequency in the at least one measurement and reporting configuration to the indicated cell re-selection priority.

4. The apparatus of claim 3, wherein the instructions are further executable by the processor to cause the apparatus to: receive at least one cell re-selection priority via dedicated signaling; and re-select another cell based on the cell re-selection priority of the indicated frequency and the at least one cell re-selection priority received via the dedicated signaling. The apparatus of claim 1, wherein: the SIB type is a first SIB type; and the instructions are further executable by the processor to cause the apparatus to: acquire a second SIB type that includes an indication about whether the first SIB type is to be acquired by at least one user equipment (UE) camping on the cell; and acquire the first SIB type based on the indication about whether the first SIB type is to be acquired by the at least one UE camping on the cell. The apparatus of claim 1, wherein the at least one measurement and reporting configuration comprises a cell-specific or system information area specific measurement and reporting configuration applicable in response to the apparatus being in an

RRC CONNECTED state. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: receive a first indication that indicates a set of synchronization signal and physical broadcast channel blocks (SSBs) in a SSB burst set, wherein the set of SSBs are transmitted by a network entity; and receive a second indication that indicates a subset of SSBs selected from the set of SSBs, wherein a system information (SI) message including the SIB type is transmitted by the network entity based on the subset of SSBs, and the SIB type is acquired and the indicated frequency in the at least one measurement and reporting configuration is set to the highest priority for cell-reselection in response to detecting at least one SSB of the subset of SSBs. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to receive information indicating at least one cell in the at least one measurement and reporting configuration, wherein the cell comprises a non-terrestrial network (NTN) cell and the at least one cell comprises a terrestrial network (TN) cell. A method in a user equipment (UE), the method comprising: selecting a cell; acquiring a system information block (SIB) type of the cell, wherein the SIB type comprises at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency; performing a measurement based on the indicated frequency in response to acquiring the SIB type for cell re-selection; and setting the indicated frequency in the at least one measurement and reporting configuration to a highest priority for cell re-selection. The method of claim 9, wherein: selecting the cell comprises selecting the cell upon receiving a radio resource control (RRC) release message; and setting the indicated frequency in the at least one measurement and reporting configuration to the highest priority for cell re-selection in response to the RRC release message not including information indicating at least one cell re -selection priority. The method of claim 9, further comprising receiving an indication of a cell re-selection priority in the at least one measurement and reporting configuration, and setting the indicated frequency in the at least one measurement and reporting configuration to the indicated cell re-selection priority. The method of claim 11, further comprising: receiving at least one cell re-selection priority via dedicated signaling; and re-selecting another cell based on the cell re-selection priority of the indicated frequency and the at least one cell re-selection priority received via the dedicated signaling. An apparatus comprising: a processor; and a memory coupled to the processor, the memory comprising instructions executable by the processor to cause the apparatus to: transmit a first system information block (SIB) type of a cell, wherein the first SIB type comprises an indication about whether a second SIB type of the cell is to be acquired by at least one user equipment (UE) camping on the cell; transmits the second SIB type of the cell, wherein the second SIB type comprises at least one measurement and reporting configuration, and the at least one measurement and reporting configuration comprises an indication of a frequency; and setting the indicated frequency in the at least one measurement and reporting configuration to a highest priority for cell re-selection by a UE of the at least one UE camping on the cell in response to the first SIB type indicating that the second SIB type of the cell is to be acquired by the at least one UE camping on the cell. The apparatus of claim 13, wherein the instructions are further executable by the processor to cause the apparatus to: transmit a first indication that indicates a set of synchronization signal and physical broadcast channel blocks (SSBs) in a SSB burst set, the first SIB type being transmitted by the apparatus based on the set of SSBs; transmit a second indication that indicates a subset of SSBs selected from the set of SSBs, wherein a system information (SI) message including the second SIB type is transmitted by the apparatus based on the subset of SSBs; and set the indicated frequency in the at least one measurement and reporting configuration to the highest priority for cell re-selection in response to at least one SSB of the subset of SSBs being detected by the UE. The apparatus of claim 13, wherein the instructions are further executable by the processor to cause the apparatus to transmit an indication of a cell re-selection priority in the at least one measurement and reporting configuration, and set the indicated frequency in the at least one measurement and reporting configuration to the indicated cell reselection priority.