Tracking the reference signal configuration

Abstract

Disclosed are an apparatus, method, and system for tracking a reference signal configuration. One method (700) includes receiving (702) a tracking reference signal configuration. The method (700) includes receiving (704) a tracking reference signal at a tracking reference signal opportunity among a plurality of tracking reference signal opportunities. The plurality of tracking reference signal opportunities are based on the tracking reference signal configuration. The method (700) includes monitoring (706) a paging physical downlink control channel at at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. The at least one paging physical downlink control channel monitoring opportunity is associated with the tracking reference signal opportunity.

Description

Technical Field

[0001] Cross - Reference to Related Applications This application claims priority to U.S. Patent Application No. 63 / 094,823, titled "APPARATUSES, METHODS, AND SYSTEMS FOR PROVISION OF REFERENCE SIGNALS FOR AN IDLE AND / OR AN INACTIVE USER EQUIPMENT," filed on October 21, 2020, by Hyejung Jung, which is hereby incorporated by reference in its entirety.

[0002] The subject matter disclosed herein generally relates to wireless communication, and more particularly to tracking of reference signal configurations.

Background Art

[0003] In certain wireless communication networks, user equipment may operate in an idle mode and / or an inactive mode. In such networks, the user equipment may operate inefficiently.

Summary of the Invention

Means for Solving the Problems

[0004] A method for tracking a reference signal configuration is disclosed. Apparatuses and systems also perform the functions of the method. One embodiment of the method includes receiving tracking of a reference signal configuration at a user equipment. In some embodiments, the method includes receiving a tracking reference signal at a tracking reference signal opportunity among a plurality of tracking reference signal opportunities. The plurality of tracking reference signal opportunities is based on a tracking reference signal configuration. In a particular embodiment, the method includes monitoring a paging physical downlink control channel at at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. The at least one paging physical downlink control channel monitoring opportunity is associated with the tracking reference signal opportunity.

[0005] One device for tracking a reference signal configuration includes user equipment. In some embodiments, the device includes a receiver that receives a tracking reference signal configuration and a tracking reference signal at one of a plurality of tracking reference signal opportunities. The plurality of tracking reference signal opportunities are based on the tracking reference signal configuration. In various embodiments, the device includes a processor that monitors a paging physical downlink control channel at at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. The at least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0006] Another embodiment of the method for tracking a reference signal configuration includes the step of transmitting a tracking reference signal configuration from a network entity. Multiple tracking reference signal opportunities are based on the tracking reference signal configuration. In some embodiments, the method includes the step of transmitting a tracking reference signal at one of the multiple tracking reference signal opportunities. In certain embodiments, the method includes the step of transmitting data on a paging physical downlink control channel at at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. At least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0007] Another device for tracking a reference signal configuration includes a network entity. In some embodiments, the device includes a transmitter that transmits a tracking reference signal configuration, wherein multiple tracking reference signal opportunities transmit based on the tracking reference signal configuration, transmits a tracking reference signal in one of the multiple tracking reference signal opportunities, and transmits data in a paging physical downlink control channel in at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. At least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0008] A more detailed description of the embodiments briefly outlined above is made by reference to specific embodiments shown in the accompanying drawings. Understanding that these drawings illustrate only a few embodiments and should therefore not be considered limiting, the embodiments are described and explained with additional specificity and detail using the accompanying drawings. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic block diagram showing one embodiment of a wireless communication system for tracking a reference signal configuration. [Figure 2] This is a schematic block diagram showing one embodiment of a device that may be used to track a reference signal configuration. [Figure 3] This is a schematic block diagram showing one embodiment of a device that may be used to track a reference signal configuration. [Figure 4] This is a schematic block diagram showing one embodiment of TRS-ResourceSetCommon IE. [Figure 5] This is a schematic block diagram showing another embodiment of the TRS-ResourceSetCommon IE. [Figure 6] This is a schematic block diagram showing one embodiment of TRS-ResourceMapping IE. [Figure 7] This flowchart illustrates one embodiment of a method for tracking a reference signal configuration. [Figure 8] This flowchart illustrates another embodiment of a method for tracking a reference signal configuration. [Modes for carrying out the invention]

[0010] As those skilled in the art will understand, embodiments of an embodiment can be embodied as a system, apparatus, method, or program product. Thus, an embodiment can take the form of a purely hardware embodiment, a purely software embodiment (including firmware, resident software, microcode, etc.), or a combination of software and hardware embodiments, which may be commonly referred to herein as “circuits,” “modules,” or “systems.” Furthermore, an embodiment can take the form of a program product embodied in one or more computer-readable storage devices that store machine-readable code, computer-readable code, and / or program code, hereinafter referred to as code. The storage device may be tangible, non-transient, and / or non-transmitting. The storage device may not embody signals. In certain embodiments, the storage device uses only signals for accessing the code.

[0011] Certain functional units described herein may be labeled as modules to more specifically emphasize the independence of their implementation forms. For example, modules may be implemented as hardware circuits comprising custom very large-scale integrated circuits ("VLSI") or off-the-shelf semiconductors such as gate arrays, logic chips, transistors, or other discrete components. Modules may also be implemented in programmable hardware devices such as field-programmable gate arrays, programmable array logic, and programmable logic devices.

[0012] Modules can also be implemented in code and / or software for execution by various types of processors. An identified module of code may contain one or more physical or logical blocks of executable code, which can be organized, for example, as objects, procedures, or functions. Nevertheless, the executable files of an identified module do not need to be physically located together, but may contain heterogeneous instructions stored in different locations, which, when logically combined, constitute the module and achieve the stated purpose of the module.

[0013] In fact, a module of code may be a single instruction or a number of instructions, and may even be distributed across several different code segments, across different programs and multiple memory devices. Similarly, operational data may be identified and illustrated within a module as herein, embodied in any suitable form, and organized within any suitable type of data structure. Operational data may be collected as a single dataset or distributed across different locations, including different computer-readable storage devices. If a module or part of a module is implemented in software, the software portion may be stored in one or more computer-readable storage devices.

[0014] Any combination of one or more computer-readable media may be used. The computer-readable media may be computer-readable storage media. The computer-readable storage media may be a storage device that stores code. The storage device may be, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, apparatus, or device, or any suitable combination thereof.

[0015] More specific examples of storage devices (a non-exclusive list) include electrical connections having one or more wires, portable computer diskettes, hard disks, random access memory ("RAM"), read-only memory ("ROM"), erasable and programmable read-only memory ("EPROM") or flash memory), portable compact disk read-only memory ("CD-ROM"), optical storage devices, magnetic storage devices, or any suitable combination thereof. In the context of this specification, a computer-readable storage medium may be any tangible medium that can contain or store programs for use by or in connection with an instruction execution system, apparatus, or device.

[0016] The code for performing the operations of the embodiments may consist of any number of lines and may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Python, Ruby, Java, Smalltalk, and C++, and traditional procedural programming languages ​​such as the “C” programming language, and / or machine languages ​​such as assembly language. The code may run entirely on the user’s computer, partially on the user’s computer, as a standalone software package, partially on the user’s computer and partially on a remote computer, or entirely on a remote computer or server. In the latter scenario, the remote computer may be connected to the user’s computer via any type of network, including a local area network (“LAN”) or a wide area network (“WAN”), and may be connected to an external computer (for example, via the Internet using an Internet service provider).

[0017] Throughout this specification, any reference to “one embodiment,” “an embodiment,” or similar terms means that a particular feature, structure, or characteristic described in relation to that embodiment is included in at least one embodiment. Thus, throughout this specification, any appearance of the phrases “in one embodiment,” “in an embodiment,” and similar terms means “one or more but not all embodiments,” although they may all refer to the same embodiment, though this is not necessarily the case. The terms “including,” “comprising,” “having,” and their variations mean “including but not limited to,” unless otherwise explicitly specified. The enumerated list of items does not mean that some or all items are mutually exclusive, unless otherwise explicitly specified. The terms “a,” “an,” and “the” also mean “one or more,” unless otherwise explicitly specified.

[0018] Furthermore, the features, structures, or characteristics described in the embodiments may be combined in any suitable manner. The following description provides numerous specific details, such as examples of programming, software modules, user selection, network transactions, database queries, database structures, hardware modules, hardware circuits, and hardware chips, in order to provide a complete understanding of the embodiments. However, those skilled in the art will recognize that the embodiments may be carried out without one or more of these specific details, or using other methods, components, materials, etc. In other examples, well-known structures, materials, or operations are not illustrated or described in detail to avoid obscuring the aspects of the embodiments.

[0019] Aspects of the embodiments will be described below with reference to schematic flowchart diagrams and / or schematic block diagrams of methods, apparatuses, systems, and program products according to the embodiments. It will be understood that each block of the schematic flowchart diagrams and / or schematic block diagrams, as well as combinations of blocks in the schematic flowchart diagrams and / or schematic block diagrams, can be implemented by code. The code creates means for implementing the functions / operations specified in the blocks of the schematic flowchart diagrams and / or schematic block diagrams by providing instructions that are executed via a processor of a computer or other programmable data processing apparatus. The code can be provided to the processor of a general-purpose computer, a dedicated computer, or other programmable data processing apparatus to create a machine.

[0020] The code can also be stored in a storage device that stores instructions that include instructions for implementing the functions / acts specified in the blocks of the schematic flowchart diagrams and / or schematic block diagrams, enabling a computer, other programmable data processing apparatus, or other device to function in a particular manner.

[0021] The code can also be loaded onto a computer, other programmable data processing apparatus, or other device such that a series of operation steps are executed on the computer, other programmable apparatus, or other device to provide a process for implementing the functions / operations specified in the blocks of the flowchart and / or block diagram, and a process executed by the computer is generated.

[0022] The schematic flowcharts and / or schematic block diagrams in the drawings illustrate the architecture, function, and operation of possible implementations of devices, systems, methods, and program products in various embodiments. In this regard, each block in the schematic flowcharts and / or schematic block diagrams may represent a module, segment, or portion of code containing one or more executable instructions of code for implementing a specified logical function.

[0023] It should also be noted that in some alternative embodiments, the functions described in a block may differ from the order shown in the drawing. For example, two blocks shown consecutively may actually be executed substantially simultaneously, or, depending on the related functions, the blocks may be executed in reverse order. Other steps and methods may be conceivable that are equivalent in function, logic, or effect to one or more blocks or parts thereof in the shown drawing.

[0024] In flowcharts and / or block diagrams, various types of arrows and lines may be used, but it should be understood that these do not limit the scope of the corresponding embodiment. In fact, some arrows or other connectors may be used to show only the logical flow of the illustrated embodiment. For example, an arrow may indicate an unspecified waiting or monitoring period between the enumerated steps of the depicted embodiment. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented by a dedicated hardware-based system or a combination of dedicated hardware and code that performs a specified function or operation.

[0025] The descriptions of elements in each drawing may refer to elements in previous drawings. Similar numbers refer to the same element in all drawings, including alternative embodiments of the same element.

[0026] Figure 1 shows one embodiment of a wireless communication system 100 for tracking a reference signal configuration. In one embodiment, the wireless communication system 100 includes a remote unit 102 and a network unit 104. Although a specific number of remote units 102 and network units 104 are shown in Figure 1, those skilled 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.

[0027] In one embodiment, the remote unit 102 may include computing devices such as desktop computers, laptop computers, personal digital assistants ("PDAs"), tablet computers, smartphones, smart televisions (e.g., Internet-connected televisions), set-top boxes, game consoles, security systems (including security cameras), in-vehicle computers, network devices (e.g., routers, switches, modems), aircraft, drones, and so on. In some embodiments, the remote unit 102 includes wearable devices such as smartwatches, fitness bands, and optical head-mounted displays. Furthermore, the remote unit 102 may be referred to as a subscriber unit, mobile, mobile station, user, terminal, mobile terminal, fixed terminal, subscriber station, UE, user terminal, device, or other terms used in the art. The remote unit 102 may communicate directly with one or more of the network units 104 via UL communication signals. In certain embodiments, the remote unit 102 may communicate directly with other remote units 102 via side-link communication.

[0028] The network unit 104 may be distributed across geographical areas. In certain embodiments, the network unit 104 may also include access points, access terminals, base stations, base stations, location servers, core network ("CN"), radio network entities, node B, evolved node B ("eNB"), 5G node B ("gNB"), home node B, relay nodes, devices, core network, airborne servers, radio access nodes, access points ("AP"), New Radio ("NR"), network entities, access and mobility management functions ("AMF"), integrated data management ("UDM"), integrated data repository ("UDR"), UDM / UDR, policy control functions ("PCF"), radio access network ("RAN"), network slice selection functions ("NSSF"), operations, administration, and maintenance functions ("operations, administration, and Network Unit 104 is generally part of a radio access network that includes one or more controllers commutably coupled to one or more corresponding network units 104. A radio access network is generally commutably coupled to one or more core networks, which may be other networks, including the Internet and public switched telephone networks. These and other elements of radio access and core networks are not illustrated but are generally well known to those skilled in the art.

[0029] In one implementation, the wireless communication system 100 conforms to the NR protocol standardized in the Third Generation Partnership Project ("3GPP"), with the network unit 104 transmitting downlink ("DL") using OFDM modulation and the remote unit 102 transmitting uplink ("UL") using single-carrier frequency division multiple access ("SC-FDMA") or orthogonal frequency division multiplexing ("OFDM"). However, more generally, the wireless communication system 100 may use other open or proprietary communication protocols, for example, other Among the protocols, WiMAX, variations of the Institute of Electrical and Electronics Engineers ("IEEE") 802.11, Global Systems for Mobile Communications ("GSM"), General Packet Radio Services ("GPRS"), Universal Mobile Communications System ("UMTS"), variations of Long-Term Evolution ("LTE"), Code Division Multiple Access 2000 ("CDMA2000"), Bluetooth®, ZigBee, and Sigfoxx may be implemented. This disclosure is not intended to be limited to any particular wireless communication system architecture or protocol implementation.

[0030] The network unit 104 may provide services to several remote units 102 within a service area, such as a cell or cell sector, via a wireless communication link. The network unit 104 transmits DL communication signals to provide services to the remote units 102 in the domains of time, frequency, and / or space.

[0031] In various embodiments, the remote unit 102 may receive a tracking reference signal configuration. In some embodiments, the remote unit 102 may receive a tracking reference signal at one of a plurality of tracking reference signal opportunities. The plurality of tracking reference signal opportunities are based on the tracking reference signal configuration. In certain embodiments, the remote unit 102 may monitor a paging physical downlink control channel at at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. At least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity. Thus, the remote unit 102 may be used to track the reference signal configuration.

[0032] In certain embodiments, the network unit 104 may transmit a tracking reference signal configuration. Multiple tracking reference signal opportunities are based on the tracking reference signal configuration. In some embodiments, the network unit 104 may transmit a tracking reference signal at one of the multiple tracking reference signal opportunities. In certain embodiments, the network unit 104 may transmit data on the paging physical downlink control channel at at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. At least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity. Thus, the network unit 104 can be used to track the reference signal configuration.

[0033] Figure 2 shows one embodiment of a device 200 that may be used to track a reference signal configuration. The device 200 includes one embodiment of a remote unit 200. Furthermore, the remote unit 102 may include a processor 202, 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 coupled to 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, memory 204, transmitter 210, and receiver 212, and may not include the input device 206 and / or display 208.

[0034] In one embodiment, the processor 202 may include any known controller capable of executing computer-readable instructions and / or logical operations. For example, the processor 202 may be a microcontroller, microprocessor, central processing unit ("CPU"), graphics processing unit ("GPU"), auxiliary processing unit, field-programmable gate array ("FPGA"), or similar programmable controller. In some embodiments, the processor 202 executes instructions stored in memory 204 to perform the methods and routines described herein. The processor 202 is communicatively coupled to memory 204, input device 206, display 208, transmitter 210, and receiver 212.

[0035] In one embodiment, memory 204 is a computer-readable storage medium. In some embodiments, memory 204 includes a volatile computer storage medium. For example, memory 204 may include RAM, including dynamic RAM ("DRAM"), synchronous dynamic RAM ("SDRAM"), and / or static RAM ("SRAM"). In some embodiments, memory 204 includes a non-volatile computer storage medium. For example, memory 204 may include a hard disk drive, flash memory, or any other suitable non-volatile computer storage device. In some embodiments, memory 204 includes both volatile and non-volatile computer storage media. In some embodiments, memory 204 also stores program code and associated data, such as an operating system or other controller algorithms running on the remote unit 102.

[0036] In one embodiment, the input device 206 may include any known computer input device, such as a touch panel, buttons, a keyboard, a stylus, or a microphone. 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 so that text can be entered using a virtual keyboard displayed on the touchscreen and / or by writing on the touchscreen. In some embodiments, the input device 206 includes two or more different devices, such as a keyboard and a touch panel.

[0037] In one embodiment, the display 208 may include any known electronically controllable display or display device. The display 208 may be designed to output visual signals, auditory signals, and / or tactile signals. In some embodiments, the display 208 includes an electronic display that can output 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 a similar display device that can output images, text, etc., to a user. In another non-limiting example, the display 208 may include a wearable display such as a smartwatch, smart glasses, or a head-up display. Furthermore, the display 208 may be a component of a smartphone, personal digital assistant, television, table computer, notebook (laptop) computer, personal computer, or vehicle dashboard.

[0038] In certain embodiments, the display 208 includes one or more speakers for generating sound. For example, the display 208 may generate audible alerts or notifications (e.g., beeps or chimes). In some embodiments, the display 208 includes one or more haptic devices for generating vibration, motion, or other tactile feedback. In some embodiments, all or part of the display 208 may be integrated with an input device 206. For example, the input device 206 and the display 208 may form a touchscreen or similar touch-sensitive display. In other embodiments, the display 208 may be positioned near the input device 206.

[0039] In certain embodiments, the receiver 212 receives a tracking reference signal configuration and receives a tracking reference signal at one of a plurality of tracking reference signal opportunities. The plurality of tracking reference signal opportunities are based on the tracking reference signal configuration. In various embodiments, the processor 202 monitors the paging physical downlink control channel at at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. The at least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0040] Although only one transmitter 210 and one receiver 212 are shown, the remote unit 102 may have any appropriate number of transmitters 210 and receivers 212. The transmitters 210 and receivers 212 can be any appropriate type of transmitter and receiver. In one embodiment, the transmitters 210 and receivers 212 may be part of a transceiver.

[0041] Figure 3 shows one embodiment of a device 300 that may be used to track a reference signal configuration. The device 300 includes one embodiment of a network unit 104. Furthermore, the network unit 104 may include a processor 302, memory 304, input device 306, display 308, transmitter 310, and receiver 312. As can be understood, the processor 302, memory 304, input device 306, display 308, transmitter 310, and receiver 312 may be substantially the same as the processor 202, memory 204, input device 206, display 208, transmitter 210, and receiver 212 of the remote unit 102, respectively.

[0042] In a particular embodiment, the transmitter 310 transmits a tracking reference signal configuration, wherein multiple tracking reference signal opportunities transmit based on the tracking reference signal configuration, transmit a tracking reference signal in one of the multiple tracking reference signal opportunities, and transmit data in a paging physical downlink control channel in at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. The at least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0043] In certain embodiments, before a user device ("UE") in idle or inactive mode can monitor paging downlink control information ("DCI") in a paging opportunity, the UE may have to perform measurements against at least one synchronization signal ("SS") physical broadcast channel ("PBCH") ("SS / PBCH") block ("SSB") of the camp cell to achieve the necessary time and frequency synchronization in order to select an appropriate SSB and determine a paging DCI monitoring opportunity corresponding to the selected SSB. In such embodiments, multiple SSB measurements may be required if the UE is operating under low signal-to-interference and noise ratio ("SINR") conditions. Furthermore, in some embodiments, certain SSB and paging configurations may result in a large time lag between the SSB opportunity and the UE's paging opportunity, which may degrade time, frequency, and / or beam tracking accuracy. Therefore, in such embodiments, it may be beneficial to provide an additional reference signal ("RS"), such as a channel status information ("CSI") RS ("CSI-RS") opportunity configured as a tracking reference signal ("TRS"), to the idle and / or inactive UE, thereby allowing the idle and / or inactive UE to use those additional RS for serving cell automatic gain control ("AGC") settings, time and / or frequency tracking, and / or radio resource management ("RRM") measurements.

[0044] In various embodiments, there are methods for providing additional RS to idle and / or inactive UEs to save power to the UE and improve time, frequency, and / or beam tracking.

[0045] In certain embodiments, the availability of TRS / CSI-RS in a TRS / CSI-RS opportunity associated with a paging opportunity implicitly indicates whether a paging DCI and / or paging PDSCH will be sent. In such embodiments, the UE must perform blind detection of TRS / CSI-RS, and failure to detect TRS / CSI-RS leads to paging failure.

[0046] In some embodiments, the paging DCI demonstrates the availability of TRS / CSI-RS and also demonstrates an updated configuration of TRS / CSI-RS. In such embodiments, the UE cannot perform TRS / CSI-RS-based time / frequency tracking before decoding the paging DCI.

[0047] In various embodiments, a PPS-PDCCH has been proposed that indicates whether to monitor the paging DCI in one or more paging opportunities of one or more DRX cycles. The RNTI used to scramble the CRC in the PPS-PDCCH is determined based on at least one selected from the paging frame index, the paging opportunity index, and the UE ID.

[0048] CSI-RS can be defined and used for time / frequency tracking, CSI calculations, L1-RSRP calculations, L1-SINR calculations, and mobility.

[0049] For CSI-RS resources associated with an NZP-CSI-RS-ResourceSet where the repetition of higher-layer parameters is set to "on", the UE should not expect to be configured with CSI-RS via symbols, while the UE is also configured to monitor CORESET in other NZP-CSI-RS-ResourceSet configurations. If the UE is configured with CSI-RS resources and search space sets associated with CORESET within the same OFDM symbol, the UE can assume that the CSI-RS and PDCCHDM-RS sent in all search space sets associated with CORESET are quasi-co-located with "QCL-TypeD", if "QCL-TypeD" is applicable. This also applies if the CSI-RS and CORESET are on different in-band component carriers, if "QCL-TypeD" is applicable. Furthermore, the UE should not expect to be configured with CSI-RS in a PRB that overlaps with CORESET within an OFDM symbol occupied by a search space set.

[0050] The UE is not expected to receive CSI-RS and SIB1 messages in overlapping PRBs within the OFDM symbol to which SIB1 is transmitted.

[0051] If the UE is configured with DRX, then 1) if drx-onDurationTimer is not started, the UE is configured to monitor DCI format 2_6 to report CSI by setting the upper layer parameter reportConfigType to "periodic" and reportQuantity to an amount other than "cri-RSRP" and "ssb-Index-RSRP", and is configured with the upper layer parameter ps-TransmitOtherPeriodicCSI, then the most recent CSI measurement opportunity occurs within the DRX active time, or within the time period indicated by drx-onDurationTimer even outside the DRX active time when CSI is reported, and 2) dr If x-onDurationTimer is not started, and the UE is configured to monitor DCI format 2_6 to report L1-RSRP by setting the upper layer parameter reportConfigType to "periodic" and reportQuantity to cri-RSRP, and configured by the upper layer parameter ps-TransmitPeriodicL1-RSRP, then the latest CSI measurement opportunity occurs within the DRX active time or within the time period indicated by drx-onDurationTimer even outside the DRX active time when the CSI is reported; 3) Otherwise, the latest CSI measurement opportunity occurs during the DRX active time when the CSI is reported.

[0052] In RRC connection mode, the UE is expected to receive a top-layer UE-specific configuration of the NZP-CSI-RS-ResourceSet, which is configured with the top-layer parameter trs-Info.

[0053] For an NZP-CSI-RS-ResourceSet configured with the upper-layer parameter trs-Info, the UE assumes that the antenna ports with the same port index are the same for the NZP CSI-RS resources configured in the NZP-CSI-RS-ResourceSet.

[0054] For frequency range 1, the UE may consist of one or more NZP CSI-RS sets, where the NZP-CSI-RS-ResourceSet consists of four periodic NZP CSI-RS resources in two consecutive slots, each containing two periodic NZP CSI-RS resources. If the two consecutive slots are not designated as downlink slots by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigDedicated, the UE may consist of one or more NZP CSI-RS sets, where the NZP-CSI-RS-ResourceSet consists of two periodic NZP CSI-RS resources in one slot.

[0055] For frequency range 2, the UE may consist of one or more NZP CSI-RS sets, where the NZP-CSI-RS-ResourceSet consists of two periodic CSI-RS resources in one slot, or an NZP-CSI-RS-ResourceSet consists of four periodic NZP CSI-RS resources in two consecutive slots, each containing two periodic NZP CSI-RS resources.

[0056] A UE composed of NZP-CSI-RS-ResourceSet(s) configured with the upper layer parameter trs-Info may have 1) periodic CSI-RS resources within the NZP-CSI-RS-ResourceSet configured with the same periodicity, bandwidth, and subcarrier position, and 2) periodic CSI-RS resources in one set and a second set of aperiodic CSI-RS resources, where the aperiodic CSI-RS and periodic CSI-RS resources have the same bandwidth (same RB position), and the aperiodic CSI-RS may have CSI-RS resources configured as "QCL-Type-A" and "QCL-TypeD" with periodic CSI-RS resources, where applicable. For frequency range 2, the UE does not expect the scheduling offset between the last symbol of the PDCCH carrying the trigger DCI and the first symbol of the aperiodic CSI-RS resource to be smaller than the beamSwitchTiming reported by the UE, if the reported value is one of the values ​​{14, 28, 48}. The UE expects that periodic CSI-RS resource sets and aperiodic CSI-RS resource sets consist of the same number of CSI-RS resources and the same number of CSI-RS resources in slots. If an aperiodic CSI-RS resource set is triggered, and the associated periodic CSI-RS resource set consists of four periodic CSI-RS resources with two consecutive slots, each containing two periodic CSI-RS resources, then the upper-layer parameter aperiodicTriggeringOffset indicates the trigger offset for the first slot of the first two CSI-RS resources in the set.

[0057] The UE does not expect that it will consist of a CSI-ReportConfig linked to a CSI-ResourceConfig containing an NZP-CSI-RS-ResourceSet configured with trs-Info, and a CSI-ReportConfig configured with the higher-tier parameter timeRestrictionForChannelMeasurements set to "Configured".

[0058] The UE does not expect a non-periodic NZP CSI-RS resource set composed of trs-Info to be configured with a CSI-ReportConfig in which the upper-level parameter reportQuantity is set to something other than "none".

[0059] The UE does not expect to be configured with a CSI-ReportConfig of a periodic NZP CSI-RS resource set composed of trs-Info.

[0060] The UE does not expect to be configured with an NZP-CSI-RS-ResourceSet consisting of both trs-Info and repetitions.

[0061] Each CSI-RS resource is configured by the upper-layer parameter NZP-CSI-RS-Resource, but with the following limitations: 1) The time domain position of two CSI-RS resources in a slot, or four CSI-RS resources in two consecutive slots (same across two consecutive slots), as defined by the upper-layer parameter CSI-RS-resourceMapping, is given by one of the following: a) For frequency range 1 and frequency range 2, l∈{4, 8}, l∈{5, 9}, or l∈{6, 10}; b) For frequency range 2, l∈{0, 4}, l∈{1, 5}, l∈{2, 6}, l∈{3, 7}, l∈{7, 11}, l∈{8, 12}, or l∈{9, 13}; 2) A single-port CSI-RS resource having a density ρ=3 given by a predetermined table and the upper-layer parameter density configured by CSI-RS-ResourceMapping; 3) Carrier

[0062]

number

[0063]

number

[0064] If μ=0 and the carrier consists of paired spectra, the bandwidth of the CSI-RS resources given by the upper-layer parameter freqBand configured by CSI-RS-ResourceMapping is X resource blocks, and if the UE indicates trs-AddBW-Set1 for the trs-AdditionalBandwidth-r16 function, X≧28 resources, and if the UE indicates trs-AddBW-Set2 for the AdditionalBandwidth-r16 function, X≧32, and in these cases, if the UE is configured with CSI-RS having X<52 resource blocks, the UE does not expect the total number of PRBs that are allocated to DL transmissions but do not overlap with PRBs carrying CSI-RS for tracking to exceed 4, and all CSI-RS resource configurations must span the same set of resource blocks, otherwise the bandwidth of the CSI-RS resources given by the upper-layer parameter freqBand configured by CSI-RS-ResourceMapping is 52 and

[0065]

number

[0066] The minimum value of the resource block, or

[0067]

number

[0068] It becomes equal to a resource block. In the case of operation with shared spectral channel access, the freqBand configured by CSI-RS-ResourceMapping is 48 and

[0069]

number

[0070] The minimum value of the resource block, or

[0071]

number

[0072] Equivalent to a resource block. If the bandwidth of a CSI-RS resource is greater than 52 resource blocks, the UE is 2 μ It is not expected that it will consist of a periodicity of 10 slots. The periodicity and slot offset of the periodic NZP CSI-RS resource, given by the periodityAndOffset of the upper layer parameter configured by NZP-CSI-RS-Resource, is 2 μ X p It is one of the slots, X p =10, 20, 40, or 80, where μ is defined. The same powerControlOffset and powerControlOffsetSS are given by the NZP-CSI-RS-Resource value across all resources.

[0073] If the UE is configured with NZP-CSI-RS-ResourceSet and the upper-layer parameter repetition is configured to "on", the UE may assume that CSI-RS resources within the NZP-CSI-RS-ResourceSet are transmitted with the same downlink spatial domain transmit filter, and that CSI-RS resources within the NZP-CSI-RS-ResourceSet are transmitted with different OFDM symbols. If repetition is configured to "off", the UE does not assume that CSI-RS resources within the NZP-CSI-RS-ResourceSet are transmitted with the same downlink spatial domain transmit filter.

[0074] If a UE is configured with a CSI-ReportConfig where reportQuantity is set to "cri-RSRP", "cri-SINR", or "none", and includes an NZP-CSI-RS-ResourceSet where the CSI-ResourceConfig for channel measurement (upper-layer parameter resourcesForChannelMeasurement) is configured using iterations of the upper-layer parameter and does not have the upper-layer parameter trs-Info, then the UE can only be configured with the same number of ports (1 or 2) as the upper-layer parameter nrofPorts of all CSI-RS resources in the set. If a UE is configured using CSI-RS resources in the same OFDM symbol as an SS / PBCH block, then the UE can assume that the CSI-RS and SS / PBCH block are pseudo-colocated with "QCL-TypeD" if "QCL-TypeD" is applicable. Furthermore, the UE should not expect that the CSI-RS will consist of the PRB of the SS / PBCH block and the PRB that overlaps with it, and the UE should expect that the same subcarrier spacing will be used for both the CSI-RS and the SS / PBCH block.

[0075] If the UE is configured with the upper-level parameter CSI-RS-Resource-Mobility and the upper-level parameter associatedSSB is not configured, the UE may perform measurements based on CSI-RS-Resource-Mobility and may use the timing of the CSI-RS resource based on the timing of the serving cell.

[0076] If the UE is configured with the upper-level parameter CSI-RS-Resource-Mobility and associatedSSB, the UE may base the timing of the CSI-RS resource on the timing of the cell given by the cellId of the CSI-RS resource configuration. Furthermore, if an associated SS / PBCH block is configured for a given CSI-RS resource but is not detected by the UE, the UE does not need to monitor the corresponding CSI-RS resource. The upper-level parameter isQuasiColocated indicates whether the associated SS / PBCH block given by the associated SSB and the CSI-RS resource are pseudo-colocated with respect to "QCL-TypeD", if applicable.

[0077] If the UE is configured with the upper layer parameter CSI-RS-Resource-Mobility and has a periodicity of more than 10 milliseconds in the pair's spectrum, then the UE may assume that the absolute value of the time difference between radio frames i between any two cells listed in the configuration using the upper layer parameter CSI-RS-CellMobility and the same refFreqCSI-RS is less than 153600Ts.

[0078] If the UE is configured with DRX, the UE does not need to perform CSI-RS resource measurements outside of the active time for measurements based on CSI-RS-Resource-Mobility. If the UE is configured to monitor DCI format 2_6, the UE does not need to perform measurements outside of the active time and the time period indicated by drx-onDurationTimer, which is also outside of the active time based on CSI-RS-Resource-Mobility.

[0079] If a UE is configured with DRX and the DRX cycle in use is greater than 80 milliseconds, the UE may not expect CSI-RS resources to be available outside of the active time for measurements based on CSI-RS-Resource-Mobility. If a UE is configured with DRX and is configured to monitor DCI format 2_6 and the DRX cycle in use is greater than 80 milliseconds, the UE may not expect CSI-RS resources to be available outside of the active time and the time period indicated by drx-onDurationTimer, which is also outside of the active time for measurements based on CSI-RS-Resource-Mobility. Otherwise, the UE may assume that CSI-RS is available for measurements based on CSI-RS-Resource-Mobility.

[0080] A UE configured with the upper-layer parameter CSI-RS-Resource-Mobility can expect to consist of 96 or fewer CSI-RS resources per upper-layer parameter MeasObjectNR if 1) all CSI-RS resources configured with the same upper-layer parameter MeasObjectNR are configured with associated SSBs, or 2) all CSI-RS resources are configured without associated SSBs, or only some of the CSI-RS resources are configured with associated SSBs by the same upper-layer parameter MeasObjectNR, and no more than 64 CSI-RS resources per upper-layer parameter MeasObjectNR. In frequency range 1, associated SSBs may exist for each CSI-RS resource. In frequency range 2, associated SSBs either exist for all configured CSI-RS resources or not for any configured CSI-RS resources per upper-layer parameter MeasObjectNR. For any CSI-RS resource configuration, the UE assumes that the value of the parameter cdm-Type is "noCDM" ​​and that there is only one antenna port.

[0081] The UE can be configured with one or more NZP CSI-RS resource set configurations, as indicated by the higher-level parameters CSI-ResourceConfig and NZP-CSI-RS-ResourceSet. Each NZP CSI-RS resource set consists of K≧1 NZP CSI-RS resources.

[0082] The following parameters, which the UE assumes to have non-zero transmit power for CSI-RS resources, are configured via the higher-layer parameters NZP-CSI-RS-Resource, CSI-ResourceConfig, and NZP-CSI-RS-ResourceSet for each CSI-RS resource configuration: 1) nzp-CSI-RS-ResourceId determines the CSI-RS resource configuration ID. 2) periodicityAndOffset defines the CSI-RS periodicity and slot offset for periodic / semi-persistent CSI-RS. All CSI-RS resources in a set are configured with the same period, but the slot offset may be the same or different for different CSI-RS resources. 3) resourceMapping defines the number of ports, CDM type, and OFDM symbol and subcarrier occupancy for a CSI-RS resource in a given slot. 4) nrofPorts in resourceMapping defines the number of CSI-RS ports, for which an allowable value is given. 5) In resourceMapping, density defines the CSI-RS frequency density for each CSI-RS port per PRB, and the CSI-RS PRB offset in the case of a density value of 1 / 2, with tolerances given. In the case of a density of 1 / 2, the odd / even PRB allocation indicated in density refers to the common resource block grid. 6) In resourceMapping, cdm-Type defines the CDM value and pattern, with tolerances given. 7) powerControlOffset: This is the assumed ratio of PDSCH EPRE to NZP CSI-RS EPRE when the UE takes CSI feedback and obtains values ​​in the range of [-8, 15] dB with a step size of 1 dB. 8) powerControlOffsetSS: This is the assumed ratio of NZP CSI-RS EPRE to SS / PBCH block EPRE. 9) scramblingID defines the CSI-RS scrambling ID with a length of 10 bits. 10) The BWP-Id in CSI-ResourceConfig defines the bandwidth portion where the configured CSI-RS is located.11) Repetition in NZP-CSI-RS-ResourceSet is associated with a CSI-RS resource set and defines whether the UE can assume that the CSI-RS resources in the NZP CSI-RS resource set are sent with the same downlink spatial domain transmission filter, and can only be configured if the higher-level parameter reportQuantity, associated with all report settings linked to the CSI-RS resource set, is set to "cri-RSRP", "cri-SINR", or "none". 12) qcl-InfoPeriodicCSI-RS includes a reference to a TCI-State indicating the QCL source RS and QCL type, and if the TCI-State consists of a reference to an RS with a "QCL-TypeD" association, that RS may be an SS / PBCH block located in the same or different CC / DL BWP, or a CSI-RS resource configured as periodic located in the same or different CC / DL BWP. 13) In NZP-CSI-RS-ResourceSet, trs-Info is associated with a CSI-RS resource set, and the UE can assume that the antenna port has the same port index as the NZP CSI-RS resource configured in NZP-CSI-RS-ResourceSet, and can be configured if no report settings are configured, or if the higher-level parameter reportQuantity, which is associated with all report settings linked to the CSI-RS resource set, is set to "none".

[0083] All CSI-RS resources within a single set consist of the same density and the same nrofPorts, with the exception of the NZP CSI-RS resources used for interference measurements.

[0084] The UE expects all CSI-RS resources in the resource set to consist of the same starting RB and number of RBs, as well as the same CDM type.

[0085] The bandwidth and initial Common Resource Block (CRB) index of CSI-RS resources within a BWP are determined based on the upper-layer parameters nrofRBs and startingRB in the CSI-FrequencyOccupation IE, respectively, which are configured by the upper-layer parameter freqBand in the CSI-RS-ResourceMapping IE. Both nrofRBs and startingRB are configured as integer multiples of 4RB, and the reference point for startingRB is CRB 0 on the common resource block grid.

[0086]

number

[0087] In this case, the UE's initial CRB index for the CSI-RS resource is

[0088]

number

[0089] Assume that this is the case, otherwise N initial RB =startingRB

[0090]

number

[0091] In this case, the UE will determine that the bandwidth of the CSI-RS resource is

[0092]

number

[0093] Assuming that this is the case, otherwise

[0094]

number

[0095] Therefore, in all cases, UE is

[0096]

number

[0097] Let's assume that...

[0098] The UE may use discontinuous reception (DRX) in the RRC_IDLE and RRC_INACTIVE states to reduce power consumption. The UE monitors one paging opportunity (PO) per DRX cycle. A PO is a set of PDCCH monitoring opportunities and can consist of multiple time slots (e.g., subframes or OFDM symbols) from which paging DCIs can be transmitted. A paging frame (PF) is a radio frame and may contain one or more POs or the start of a PO.

[0099] In multi-beam operation, the UE assumes that the same paging message and the same short message are repeated on all transmitted beams; therefore, the selection of beams for receiving the paging message and short message depends on the UE's implementation. The paging message is the same in both RAN-driven and CN-driven paging.

[0100] When the UE receives RAN-initiated paging, it initiates the RRC connection reactivation procedure. If the UE receives CN-initiated paging while in the RRC_INACTIVE state, the UE transitions to RRC_IDLE and notifies the NAS.

[0101] The paging PF and PO are determined by the following formula. The SFN of the PF is determined by (SFN + PF_offset) mod T = (T div N) * (UE_ID mod N).

[0102] The index (i_s) indicating the index of the PO is determined by i_s = floor(UE_ID / N) mod Ns.

[0103] The PDCCH monitoring opportunity for paging is determined according to pagingSearchSpace, firstPDCCH-MonitoringOccasionOfPO, and nrofPDCCH-MonitoringOccasionPerSSB-InPO, if configured. If SearchSpaceId=0 is configured for pagingSearchSpace, the PDCCH monitoring opportunity for paging is the same as RMSI.

[0104] If SearchSpaceId=0 is configured in pagingSearchSpace, then Ns is either 1 or 2. If Ns=1, there is only one PO that starts from the first PDCCH monitoring opportunity in paging in the PF. If Ns=2, the PO is in either the first frame (i_s=0) or the second frame (i_s=1) of the PF.

[0105] If pagingSearchSpace has a non-zero SearchSpaceId, the UE monitors the (i_s+1)th PO. A PO is a set of "S*X" consecutive PDCCH monitoring opportunities, where "S" is the number of SSBs actually sent, determined according to ssb-PositionsInBurst in SIB1, and X is equal to nrofPDCCH-MonitoringOccasionPerSSB-InPO if configured, otherwise equal to 1. The [x*S+K]th PDCCH monitoring opportunity for paging in a PO corresponds to the Kth sent SSB, where x=0, 1, ..., X-1, K=1, 2, ..., S. PDCCH monitoring opportunities for paging that do not overlap with UL symbols (determined according to tdd-UL-DL-ConfigurationCommon) are numbered sequentially from zero, starting with the first PDCCH monitoring opportunity for paging in the PF. If firstPDCCH-MonitoringOccasionOfPO exists, the starting PDCCH monitoring opportunity number for the (i_s+1)th PO is the (i_s+1)th value of the firstPDCCH-MonitoringOccasionOfPO parameter; otherwise, it is equal to i_s*S*X. If X>1, and the UE detects a PDCCH transmission destined for P-RNTI within that PO, the UE does not need to monitor subsequent PDCCH monitoring opportunities for this PO.

[0106] Note that a PO associated with a PF can be initiated during or after the PF. Furthermore, a PO's PDCCH monitoring opportunity can span multiple wireless frames. If a non-zero SearchSpaceId is configured for paging-SearchSpace, a PO's PDCCH monitoring opportunity can span multiple periods of the paging search space.

[0107] The following parameters are used in the calculation of PF and i_s above: 1) T: DRX cycles of the UE (T is determined by the shortest UE-specific DRX value and the default DRX value broadcast in the system information, if it is composed of RRC and / or upper layers. In the RRC_IDLE state, the default value is applied if the UE-specific DRX is not composed of upper layers). 2) N: Total number of paging frames in T. 3) Ns: Number of paging cycles of PF. 4) PF_offset: Offset used to determine PF. 5) UE_ID: 5G-S-TMSI mod 1024.

[0108] The parameters Ns, nAndPagingFrameOffset, nrofPDCCH-MonitoringOccasionPerSSB-InPO, and the default DRX cycle length are communicated in SIB1. The values ​​of N and PF_offset are derived from the parameter nAndPagingFrameOffset. The parameter first-PDCCH-MonitoringOccasionOfPO is communicated in SIB1 for paging in the initial DL BWP. For paging in DL BWPs other than the initial DL BWP, the parameter first-PDCCH-MonitoringOccasionOfPO is communicated in the corresponding BWP configuration.

[0109] If a UE does not have a 5G-S-TMSI, for example, if the UE has not yet registered with the network, the UE should use UE_ID=0 as the default ID in the PF and i_s expressions above. A 5G-S-TMSI is a 48-bit bit string. In the above expressions, the 5G-S-TMSI is interpreted as a binary number where the leftmost bit represents the most significant bit.

[0110] In certain embodiments, a UE may be configured to monitor a Paging Power Saving ("PPS") physical downlink control channel ("PDCCH") ("PPS-PDCCH") at the same or multiple frequency as the Paging and / or discontinuous cycle ("DRX"), and the PPS-PDCCH may indicate that it does not monitor the Paging DCI, or monitors the Paging DCI over one or more Paging and / or DRX cycles. In one example, if the UE does not receive a PPS-PDCCH, the UE monitors the Paging DCI in the Paging and / or DRX cycle. If the UE has already decided whether to monitor the Paging DCI in a given Paging and / or DRX cycle by receiving an instruction to skip or not skip monitoring the Paging DCI in that Paging and / or DRX cycle, the UE may skip monitoring the PPS-PDCCH in a configured PPS-PDCCH monitoring opportunity associated with the UE's Paging opportunity in the given Paging and / or DRX cycle.

[0111] In some embodiments, when multiple SS / PBCH blocks are transmitted in a single cell, each PPS-PDCCH monitoring opportunity in the set of PPS-PDCCH monitoring opportunities may be associated with a specific SS / PBCH block, and / or a specific TRS and / or CSI-RS resource (e.g., a specific downlink beam), and the UE may only need to monitor the PPS-PDCCH for the PPS-PDCCH monitoring opportunities associated with the selected SS / PBCH block, TRS resource, and / or CSI-RS resource.

[0112] In various embodiments, a network entity may or may not share TRS and / or CSI-RS opportunities configured for a connected mode UE with an idle and / or inactive mode UE. Furthermore, in certain embodiments, a network entity may or may not transmit TRS and / or CSI-RS at a TRS and / or CSI-RS opportunity. In one implementation, TRS and / or CSI-RS opportunities are configured to occur periodically.

[0113] In some embodiments, the UE receives a cell-specific TRS configuration (e.g., TRS-ResourceSetCommon) via a system information block or via a dedicated RRC message (e.g., in the CellGroupConfig information element ("IE")). The cell-specific TRS configuration may include information about multiple paging frames in each of multiple paging frames from which the UE may receive an associated TRS, and additional multiple paging opportunities. In various embodiments, as described in Example 1, the total number of paging frames in a paging and / or DRX cycle may depend on the SSB periodicity. In certain embodiments, whether a TRS is required for time and frequency tracking may depend on the distance from the nearest SSB opportunity prior to the paging PDCCH monitoring opportunity for the paging frame. In such embodiments, if the paging PDCCH monitoring opportunity is temporally far from the nearest SSB opportunity, a network entity (e.g., gNB) may configure a TRS opportunity associated with the paging PDCCH monitoring opportunity. In one example, it is assumed that the TRS in a TRS opportunity and the Paging PDCCH Demodulation ("DM") Reference Signal ("RS") ("DM-RS") in a Paging PDCCH Monitoring opportunity are pseudo-colocated ("QCL") with respect to a first set of large-scale properties, including delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters (e.g., "QCL-TypeA": {Doppler shift, Doppler spread, average delay, delay spread} and "QCL-TypeD": {spatial Rx parameters}). The SSB opportunity closest to the TRS may be assumed to be QCL with respect to a second set of large-scale properties (e.g., "QCL-TypeC": {Doppler shift, average delay} and "QCL-TypeD": {spatial Rx parameters}). A QCL relationship may be indicated by showing a Transmit Configuration Indicator ("TCI") state ("TCI state") that provides the QCL source and QCL type.

[0114] In some embodiments, a TRS opportunity may be associated with at least one paging PDCCH monitoring opportunity of a paging frame, and the paging opportunity and paging frame are from a plurality of paging opportunities and a plurality of paging frames from which the associated TRS can be received by the UE. Furthermore, in such embodiments, a TRS opportunity may have the same QCL information as the at least one paging PDCCH monitoring opportunity associated with it. In one example, a TRS opportunity and the at least one paging PDCCH monitoring opportunity associated with it are pseudo-colocated with a particular SSB with respect to "QCL-TypeD". In the example shown herein as Example 2, a TRS opportunity may be defined as the number of slot offsets prior to the earliest PDCCH monitoring opportunity of the at least one PDCCH monitoring opportunity associated with it (e.g., parameter "offset-PO"). In another example shown herein as Example 3, a TRS opportunity is determined based on periodicity and / or slot offsets which may be configured considering the SSB period, DRX and / or paging cycle period, the number of paging frames per DRX and / or paging cycle, and the number of paging opportunities per paging frame. For example, a TRS opportunity may be configured as a set of periodic non-zero-power ("NZP") CSI-RS resources having a periodicity of 10, 20, 40, or 80 milliseconds.

[0115] In various embodiments, frequency domain resource mapping information in a TRS resource set configuration is communicated once to apply to all NZP-CSI-RS resources within the TRS resource set.

[0116] In certain embodiments, first time-domain resource mapping information (e.g., assigned orthogonal frequency division multiplexing ("OFDM") symbols) is communicated for a first NZP-CSI-RS resource, and the UE can derive time-domain resource mappings for the remaining NZP-CSI-RS resources in the TRS resource set based on the first time-domain resource mapping information. In one example, the time-domain positions of two NZP-CSI-RS resources in a slot, or four NZP-CSI-RS resources in two consecutive slots (e.g., the same across two consecutive slots), are given by 1) for frequency ranges 1 and 2, l∈{4, 8}, l∈{5, 9}, or l∈{6, 10}, and 2) for frequency range 2, one of l∈{0, 4}, l∈{1, 5}, l∈{2, 6}, l∈{3, 7}, l∈{7, 11}, l∈{8, 12}, or l∈{9, 13}.

[0117] In such an embodiment, by receiving the instruction of the preceding OFDM symbol, the UE can determine the OFDM symbol index of the subsequent OFDM symbol.

[0118] In the examples shown herein as Example 2 and Example 3, the powerControlOffset and powerControlOffsetSS values ​​shown in the TRS resource set may be assumed to apply across all NZP-CSI-RS resources within the TRS resource set.

[0119] In some embodiments, the UE may assume that each NZP-CSI-RS resource in the TRS resource set has a single antenna port. Furthermore, in such embodiments, the UE may assume that all NZP-CSI-RS resources in the TRS resource set have the same antenna port.

[0120] In various embodiments, a network entity can dynamically switch between periodic and / or semi-persistent TRS and aperiodic TRS via a DCI or Media Access Control ("MAC") control element ("CE") display, based on a given Radio Resource Control ("RRC") configuration of a TRS resource set, or based on two or more TRS resource set configurations (e.g., one set is periodic and another is aperiodic). Depending on the number of UEs camping in a cell (and its change over time), and / or the average paging rate (and its change over time) in a tracking area or Radio Access Network ("RAN") paging area, a network entity (e.g., a gNB) can switch between periodic and / or semi-persistent TRS operation and aperiodic TRS operation. Dynamic switching allows the gNB to adjust the TRS transmission overhead and / or TRS availability display overhead as needed, reducing the burden on UEs checking the TRS availability display.

[0121] In certain embodiments, the UE receives an indication in the PPS-PDCCH that a TRS transmission is periodic (or semi-persistent) or aperiodic. If a periodic and / or semi-persistent TRS is indicated, the UE may assume that the TRS is transmitted on TRS opportunities configured in one or more DRX and / or paging cycles. If aperiodic TRS is indicated, the UE may check the availability of the TRS on at least one configured TRS opportunity. The UE may further receive TRS availability information on at least one configured TRS within the PPS-PDCCH. For example, a PPS-PDCCH monitoring opportunity associated with a particular SSB in a cell may be configured for at least one DRX and / or paging cycle (for example, the monitoring opportunity occurs a few slots before the start of at least one DRX and / or paging cycle). A single bit in the PPS-PDCCH directed to all UEs camping in the cell may indicate whether a TRS transmission is periodic. If the TRS transmission is indicated to be aperiodic, the UE assumes that the subsequent bit field containing X bits indicates the availability of TRS in X paging frames (or groups of X paging frames) composed of TRS opportunities (for example, each bit in the X-bit bitmap corresponds to a paging frame (or group of paging frames) composed of TRS opportunities in the DRX and / or paging cycle).

[0122] In one example, the UE may assume that a TRS is transmitted at a TRS opportunity if the UE is instructed to monitor the paging DCI at a paging PDCCH monitoring opportunity associated with a TRS opportunity. The UE does not have to measure a TRS at a TRS opportunity if it is instructed not to monitor the paging DCI at a paging PDCCH monitoring opportunity associated with a TRS opportunity. In some embodiments, if the UE is indicated that a TRS is transmitted at a TRS opportunity, the UE monitors the paging DCI at at least one paging PDCCH monitoring opportunity associated with the TRS opportunity. In another example, the UE is individually indicated in the PPS-PDCCH whether a TRS is transmitted at a TRS opportunity in at least one subsequent DRX cycle, and whether the UE needs to monitor a paging PDCCH monitoring opportunity in at least one subsequent DRX cycle.

[0123] In various embodiments, the UE receives information that the TRS transmission is periodic (or semi-persistent) or aperiodic in the paging DCI format detected in the first DRX and / or paging cycle. In such embodiments, the received information is applicable from the second DRX and / or paging cycle, which starts later than the first DRX and / or paging cycle.

[0124] In some embodiments, the TRS configuration (e.g., TRS-ResourceSetCommon) includes multiple periodic NZP-CSI-RS resources and multiple aperiodic NZP-CSI-RS resources. In one example, all NZP-CSI-RS resources in the TRS-ResourceSet are configured with the same bandwidth and subcarrier position, and all periodic NZP-CSI-RS resources are configured with the same period. In another example, the powerControlOffset value and powerControlOffsetSS value are configured separately for the periodic NZP-CSI-RS resources and the aperiodic NZP-CSI-RS resources, respectively.

[0125] In the first example (Example 1), we have the determination of the total number (N) of paging frames in the DRX and / or paging cycle (T). If pagingSearchSpace is set to zero and the multiplexing pattern of SS / PBCH blocks and control resource sets ("CORESET") is 2 or 3, then: 1) For ssb-periodicityServingCells of 5 milliseconds or 10 milliseconds, N can be set to any of {T, T / 2, T / 4, T / 8, T / 16}; 2) For ssb-periodicityServingCells of 20 milliseconds, N can be set to any of {T / 2, T / 4, T / 8, T / 16}; 3) For ssb-periodicityServingCells of 40 milliseconds, N can be set to any of {T / 4, T / 8, T / 16}; 4) For ssb-periodicityServingCells of 80 milliseconds, N can be set to any of {T / 8, T / 16}; 5) For ssb-periodicityServingCells of 160 milliseconds, N can be set to T / 16. If pagingSearchSpace is set to zero and the SS / PBCH block and CORESET multiplexing pattern is 1, N can be set to one of {T / 2, T / 4, T / 8, T / 16}. If pagingSearchSpace is not set to zero, N can be configured to one of {T, T / 2, T / 4, T / 8, T / 16}.

[0126] In the second example (Example 2), a common parameter (TRS-ResourceSetCommon) may exist. The IE TRS-ResourceSetCommon is used to configure a cell-specific set of NZP CSI-RS resources in the cell containing the IE and may be configured so that idle or inactive UEs are measured. Periodic and aperiodic configuration changes of the TRS-ResourceSetCommon may be supported. Figure 4 is a schematic block diagram 400 showing one embodiment of the TRS-ResourceSetCommon IE. In Figure 4, n-NZP-CSI-RS may be the total number of NZP-CSI-RS resources in the TRS resource set, powerControlOffset may be a power offset in dB from the physical downlink shared channel ("PDSCH") resource element ("RE") to the NZP CSI-RS RE, and powerControlOffsetSS may be a power offset in dB from the NZP CSI-RS RE to the secondary synchronization signal ("SSS") RE.

[0127] In a third example (Example 3), another common parameter (TRS-ResourceSetCommon) may exist. The IE TRS-ResourceSetCommon is used to configure a cell-specific set of NZP CSI-RS resources in the cell containing the IE and may be configured to measure idle or inactive UEs. Periodic and aperiodic configuration changes of the TRS-ResourceSet may be supported. Figure 5 is a schematic block diagram 500 showing another embodiment of the TRS-ResourceSetCommon IE.

[0128] In the fourth example (Example 4), resource mapping (TRS-ResourceMapping) may be present. IE TRS-ResourceMapping can be used to configure resource element mapping for at least one TRS resource in the time domain and frequency domain. Figure 6 is a schematic block diagram 600 showing one embodiment of TRS-ResourceMapping IE.

[0129] Figure 7 is a flowchart illustrating one embodiment of method 700 for tracking a reference signal configuration. In some embodiments, method 700 is performed by a device such as a remote unit 102. In certain embodiments, method 700 may be performed by a processor that executes program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0130] In various embodiments, method 700 includes step 702 of receiving a tracking reference signal configuration. In some embodiments, method 700 includes step 704 of receiving a tracking reference signal in a tracking reference signal opportunity among a plurality of tracking reference signal opportunities. The plurality of tracking reference signal opportunities are based on a tracking reference signal configuration. In a particular embodiment, method 700 includes step 706 of monitoring a paging physical downlink control channel in at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. At least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0131] In certain embodiments, each paging frame in a plurality of paging frames in a discontinuous reception cycle is associated with at least one tracking reference signal opportunity among a plurality of tracking reference signal opportunities. In some embodiments, method 700 further comprises the steps of receiving first information relating to a first non-zero power channel state information reference signal resource of a tracking reference signal configuration, and determining second information relating to a second non-zero power channel state information reference signal resource of a tracking reference signal configuration based on the first information. In various embodiments, the first information comprises time domain mapping information for the first non-zero power channel state information reference signal resource, frequency domain mapping information for the first non-zero power channel state information reference signal resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof.

[0132] In one embodiment, at least one paging physical downlink control channel monitoring opportunity and a tracking reference signal opportunity are pseudo-collocated with a synchronization signal block. In a particular embodiment, it is assumed that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity, and the step of receiving a tracking reference signal comprises the step of receiving a tracking reference signal in a tracking reference signal opportunity, based on the assumption that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity.

[0133] In some embodiments, the method 700 further comprises the step of receiving information indicating whether a tracking reference signal is transmitted by a network entity at a tracking reference signal opportunity, the step of receiving a tracking reference signal comprising the step of receiving a tracking reference signal at a tracking reference signal opportunity in response to a tracking reference signal transmitted by a network entity at a tracking reference signal opportunity.

[0134] In various embodiments, Method 700 further comprises the steps of receiving a paging power saving physical downlink control channel configuration, wherein the paging power saving physical downlink control channel configuration includes a paging power saving physical downlink control channel monitoring configuration, and receiving a paging power saving physical downlink control channel based on the paging power saving physical downlink control channel monitoring configuration, wherein the paging power saving physical downlink control channel provides information on the availability of a tracking reference signal in a tracking reference signal opportunity.

[0135] In one embodiment, the tracking reference signal and the paging power-saving physical downlink control channel are pseudo-colocated. In certain embodiments, the tracking reference signal configuration is a cell-specific tracking reference signal configuration, and the tracking reference signal configuration is received via a system information block or a dedicated radio resource control message. In some embodiments, multiple tracking reference signal opportunities are determined based on periodicity, slot offset, or a combination thereof.

[0136] Figure 8 is a flowchart illustrating another embodiment of method 800 for tracking a reference signal configuration. In some embodiments, method 800 is performed by a device such as a network unit 104. In certain embodiments, method 800 may be performed by a processor that executes program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0137] In various embodiments, method 800 includes step 802 of transmitting a tracking reference signal configuration. Multiple tracking reference signal opportunities are based on the tracking reference signal configuration. In some embodiments, method 800 includes step 804 of transmitting a tracking reference signal in one of the multiple tracking reference signal opportunities. In a particular embodiment, method 800 includes step 806 of transmitting data in a paging physical downlink control channel in at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal. At least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0138] In certain embodiments, each paging frame in a plurality of paging frames in a discontinuous reception cycle is associated with at least one tracking reference signal opportunity among a plurality of tracking reference signal opportunities. In some embodiments, method 800 further comprises the step of transmitting first information relating to a first non-zero power channel state information reference signal resource of a tracking reference signal configuration, wherein second information relating to a second non-zero power channel state information reference signal resource of a tracking reference signal configuration is based on the first information. In various embodiments, the first information comprises time domain mapping information for the first non-zero power channel state information reference signal resource, frequency domain mapping information for the first non-zero power channel state information reference signal resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof.

[0139] In one embodiment, at least one paging physical downlink control channel monitoring opportunity and a tracking reference signal opportunity are pseudo-collocated with a synchronization signal block. In certain embodiments, it is assumed that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity, and the step of transmitting a tracking reference signal comprises the step of transmitting a tracking reference signal in a tracking reference signal opportunity based on the assumption that the plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity. In some embodiments, method 800 further comprises the step of transmitting information indicating whether a tracking reference signal is transmitted by a network entity in a tracking reference signal opportunity, and the step of transmitting a tracking reference signal includes the step of transmitting a tracking reference signal in a tracking reference signal opportunity in response to a tracking reference signal transmitted by a network entity in a tracking reference signal opportunity.

[0140] In various embodiments, Method 800 further comprises the steps of transmitting a paging power saving physical downlink control channel configuration, wherein the paging power saving physical downlink control channel configuration includes a paging power saving physical downlink control channel monitoring configuration; and transmitting a paging power saving physical downlink control channel based on the paging power saving physical downlink control channel monitoring configuration, wherein the paging power saving physical downlink control channel provides information on the availability of the tracking reference signal in a tracking reference signal opportunity. In one embodiment, the tracking reference signal and the paging power saving physical downlink control channel are pseudo-collocated. In a particular embodiment, the tracking reference signal configuration is a cell-specific tracking reference signal configuration, and the tracking reference signal configuration is transmitted via a system information block or a dedicated radio resource control message. In some embodiments, the multiple tracking reference signal opportunities are based on periodicity, slot offset, or a combination thereof.

[0141] In one embodiment, the user equipment method comprises the steps of receiving a tracking reference signal configuration, receiving a tracking reference signal in a tracking reference signal opportunity among a plurality of tracking reference signal opportunities, wherein the plurality of tracking reference signal opportunities are based on the tracking reference signal configuration, and monitoring a paging physical downlink control channel in at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal, wherein at least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0142] In certain embodiments, each paging frame in a discontinuous reception cycle is associated with at least one tracking reference signal opportunity among a plurality of tracking reference signal opportunities.

[0143] In some embodiments, the method further comprises the steps of receiving first information relating to a first non-zero power channel state information reference signal resource of a tracking reference signal configuration, and determining second information relating to a second non-zero power channel state information reference signal resource of the tracking reference signal configuration based on the first information.

[0144] In various embodiments, the first information comprises time domain mapping information of a first non-zero power channel state information reference signal resource, frequency domain mapping information of the first non-zero power channel state information reference signal resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof.

[0145] In one embodiment, at least one paging physical downlink control channel monitoring opportunity and a tracking reference signal opportunity are pseudo-collocated with a synchronization signal block.

[0146] In a particular embodiment, it is assumed that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity, and the step of receiving a tracking reference signal comprises the step of receiving a tracking reference signal at a tracking reference signal opportunity, based on the assumption that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity.

[0147] In some embodiments, the method further comprises the step of receiving information indicating whether a tracking reference signal is transmitted by a network entity at a tracking reference signal opportunity, the step of receiving a tracking reference signal comprising the step of receiving a tracking reference signal at a tracking reference signal opportunity in response to a tracking reference signal transmitted by a network entity at a tracking reference signal opportunity.

[0148] In various embodiments, the method further comprises the steps of receiving a paging power saving physical downlink control channel configuration, wherein the paging power saving physical downlink control channel configuration includes a paging power saving physical downlink control channel monitoring configuration, and receiving a paging power saving physical downlink control channel based on the paging power saving physical downlink control channel monitoring configuration, wherein the paging power saving physical downlink control channel provides information on the availability of a tracking reference signal in a tracking reference signal opportunity.

[0149] In one embodiment, the tracking reference signal and the paging power-saving physical downlink control channel are pseudo-colocated.

[0150] In certain embodiments, the tracking reference signal configuration is a cell-specific tracking reference signal configuration, and the tracking reference signal configuration is received via a system information block or a dedicated radio resource control message.

[0151] In some embodiments, multiple tracking reference signal opportunities are determined based on periodicity, slot offset, or a combination thereof.

[0152] In one embodiment, the device comprises user equipment. The device further comprises a receiver that receives a tracking reference signal configuration and a tracking reference signal in a tracking reference signal opportunity among a plurality of tracking reference signal opportunities, wherein the plurality of tracking reference signal opportunities receive based on the tracking reference signal configuration, and a processor that monitors a paging physical downlink control channel in at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal, wherein the at least one paging physical downlink control channel monitoring opportunity is associated with a tracking reference signal opportunity.

[0153] In certain embodiments, each paging frame in a discontinuous reception cycle is associated with at least one tracking reference signal opportunity among a plurality of tracking reference signal opportunities.

[0154] In some embodiments, the receiver receives first information relating to a first non-zero power channel state information reference signal resource of the tracking reference signal configuration, and the processor determines second information relating to a second non-zero power channel state information reference signal resource of the tracking reference signal configuration based on the first information.

[0155] In various embodiments, the first information comprises time domain mapping information of a first non-zero power channel state information reference signal resource, frequency domain mapping information of the first non-zero power channel state information reference signal resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof.

[0156] In one embodiment, at least one paging physical downlink control channel monitoring opportunity and a tracking reference signal opportunity are pseudo-collocated with a synchronization signal block.

[0157] In certain embodiments, the processor assumes that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity, and the receiver that receives the tracking reference signals includes a receiver that receives the tracking reference signals in a tracking reference signal opportunity, based on the assumption that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity.

[0158] In some embodiments, a receiver receives information indicating whether a tracking reference signal is transmitted by a network entity at a tracking reference signal opportunity, and a receiver that receives a tracking reference signal includes a receiver that receives a tracking reference signal at a tracking reference signal opportunity in response to a tracking reference signal transmitted by a network entity at a tracking reference signal opportunity.

[0159] In various embodiments, the receiver receives a paging power saving physical downlink control channel configuration, the paging power saving physical downlink control channel configuration includes a paging power saving physical downlink control channel monitoring configuration, the receiver receives a paging power saving physical downlink control channel based on the paging power saving physical downlink control channel monitoring configuration, and the paging power saving physical downlink control channel provides information on the availability of a tracking reference signal in a tracking reference signal opportunity.

[0160] In one embodiment, the tracking reference signal and the paging power-saving physical downlink control channel are pseudo-colocated.

[0161] In certain embodiments, the tracking reference signal configuration is a cell-specific tracking reference signal configuration, and the tracking reference signal configuration is received via a system information block or a dedicated radio resource control message.

[0162] In some embodiments, multiple tracking reference signal opportunities are determined based on periodicity, slot offset, or a combination thereof.

[0163] In one embodiment, the network entity method comprises the steps of transmitting a tracking reference signal configuration, wherein a plurality of tracking reference signal opportunities are associated with the tracking reference signal configuration; transmitting a tracking reference signal in one of the plurality of tracking reference signal opportunities; and transmitting data in a paging physical downlink control channel in at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal, wherein at least one paging physical downlink control channel monitoring opportunity is associated with the tracking reference signal opportunity.

[0164] In certain embodiments, each paging frame in a discontinuous reception cycle is associated with at least one tracking reference signal opportunity among a plurality of tracking reference signal opportunities.

[0165] In some embodiments, the method further comprises the step of transmitting first information relating to a first non-zero power channel state information reference signal resource of a tracking reference signal configuration, wherein second information relating to a second non-zero power channel state information reference signal resource of the tracking reference signal configuration is based on the first information.

[0166] In various embodiments, the first information comprises time domain mapping information of a first non-zero power channel state information reference signal resource, frequency domain mapping information of the first non-zero power channel state information reference signal resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof.

[0167] In one embodiment, at least one paging physical downlink control channel monitoring opportunity and a tracking reference signal opportunity are pseudo-collocated with a synchronization signal block.

[0168] In certain embodiments, it is assumed that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity, and the step of transmitting a tracking reference signal includes the step of transmitting a tracking reference signal in a tracking reference signal opportunity, based on the assumption that the plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity.

[0169] In some embodiments, the method further comprises the step of transmitting information indicating whether a tracking reference signal is transmitted by a network entity at a tracking reference signal opportunity, the step of transmitting a tracking reference signal includes transmitting a tracking reference signal at a tracking reference signal opportunity in response to a tracking reference signal transmitted by a network entity at a tracking reference signal opportunity.

[0170] In various embodiments, the method further comprises the steps of transmitting a paging power saving physical downlink control channel configuration, wherein the paging power saving physical downlink control channel configuration includes a paging power saving physical downlink control channel monitoring configuration; and transmitting a paging power saving physical downlink control channel based on the paging power saving physical downlink control channel monitoring configuration, wherein the paging power saving physical downlink control channel provides information on the availability of a tracking reference signal in a tracking reference signal opportunity.

[0171] In one embodiment, the tracking reference signal and the paging power-saving physical downlink control channel are pseudo-colocated.

[0172] In certain embodiments, the tracking reference signal configuration is a cell-specific tracking reference signal configuration, and the tracking reference signal configuration is transmitted via a system information block or a dedicated radio resource control message.

[0173] In some embodiments, multiple tracking reference signal opportunities are based on periodicity, slot offset, or a combination thereof.

[0174] In one embodiment, the device comprises a network entity. The device further comprises a transmitter that transmits a tracking reference signal configuration, wherein a plurality of tracking reference signal opportunities transmit based on the tracking reference signal configuration, transmits a tracking reference signal in one of the multiple tracking reference signal opportunities, and transmits data in a paging physical downlink control channel in at least one paging physical downlink control channel monitoring opportunity based on the tracking reference signal, the at least one paging physical downlink control channel monitoring opportunity is associated with the tracking reference signal opportunity.

[0175] In certain embodiments, each paging frame in a discontinuous reception cycle is associated with at least one tracking reference signal opportunity among a plurality of tracking reference signal opportunities.

[0176] In some embodiments, the transmitter transmits first information relating to a first non-zero power channel state information reference signal resource of the tracking reference signal configuration, and second information relating to a second non-zero power channel state information reference signal resource of the tracking reference signal configuration is based on the first information.

[0177] In various embodiments, the first information comprises time domain mapping information of a first non-zero power channel state information reference signal resource, frequency domain mapping information of the first non-zero power channel state information reference signal resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof.

[0178] In one embodiment, at least one paging physical downlink control channel monitoring opportunity and a tracking reference signal opportunity are pseudo-collocated with a synchronization signal block.

[0179] In certain embodiments, it is assumed that a plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity, and the step of transmitting a tracking reference signal includes the step of transmitting a tracking reference signal in a tracking reference signal opportunity, based on the assumption that the plurality of tracking reference signal opportunities include a plurality of tracking reference signals transmitted by a network entity.

[0180] In some embodiments, the transmitter transmits information indicating whether a tracking reference signal is transmitted by a network entity at a tracking reference signal opportunity, and the transmitters that transmit the tracking reference signal include transmitters that transmit the tracking reference signal at a tracking reference signal opportunity in response to a tracking reference signal transmitted by a network entity at a tracking reference signal opportunity.

[0181] In various embodiments, the transmitter transmits a paging power saving physical downlink control channel configuration, the paging power saving physical downlink control channel configuration includes a paging power saving physical downlink control channel monitoring configuration, the transmitter transmits a paging power saving physical downlink control channel based on the paging power saving physical downlink control channel monitoring configuration, and the paging power saving physical downlink control channel provides information on the availability of the tracking reference signal in tracking reference signal opportunities.

[0182] In one embodiment, the tracking reference signal and the paging power-saving physical downlink control channel are pseudo-colocated.

[0183] In certain embodiments, the tracking reference signal configuration is a cell-specific tracking reference signal configuration, and the tracking reference signal configuration is transmitted via a system information block or a dedicated radio resource control message.

[0184] In some embodiments, multiple tracking reference signal opportunities are based on periodicity, slot offset, or a combination thereof.

[0185] The embodiments described may be carried out in other specific forms. The embodiments described should be considered in all respects as illustrative and not restrictive. Accordingly, the scope of the invention is indicated by the appended claims rather than by the foregoing description. All modifications that fall within the meaning and scope of equivalence of the claims should be encompassed within that scope. [Explanation of Symbols]

[0186] 100 Wireless Communication Systems 102 Remote Unit 104 Network Units 200 equipment 202 processors 204 memory 206 Input Devices 208 displays 210 Transmitter 212 Receiver 300 equipment 302 Processors 304 memory 306 Input Devices 308 displays 310 Transmitter 312 Receiver 400 Schematic Block Diagram 500 Schematic Block Diagram 600 Schematic Block Diagram 700 methods 800 ways

Claims

1. A method using user equipment (UE), The steps include receiving a tracking reference signal (TRS) configuration, A step of receiving a TRS in one of several TRS opportunities, wherein the multiple TRS opportunities are based on the TRS configuration, A step of monitoring a paging physical downlink control channel (PDCCH) in at least one PDCCH monitoring opportunity based on the TRS, wherein the at least one PDCCH monitoring opportunity is associated with the TRS. Equipped with, A step of receiving a paging power saving PDCCH configuration, wherein the paging power saving PDCCH configuration includes a paging power saving PDCCH monitoring configuration. A step of receiving a paging power saving PDCCH based on the paging power saving PDCCH monitoring configuration, wherein the paging power saving PDCCH provides information on the availability of the TRS at the TRS opportunity. Methods to further prepare.

2. The method according to claim 1, wherein each paging frame in a plurality of paging frames in a discontinuous reception (DRX) cycle is associated with at least one TRS opportunity among the plurality of TRS opportunities.

3. The steps include receiving first information regarding the first non-zero power channel state information reference signal (NZP-CSI-RS) resource of the TRS configuration, The steps include determining second information regarding a second NZP-CSI-RS resource of the TRS configuration based on the first information described above, and The method according to claim 1, further comprising:

4. The method according to claim 3, wherein the first information comprises time domain mapping information for the first NZP-CSI-RS resource, frequency domain mapping information for the first NZP-CSI-RS resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof.

5. The method according to claim 1, wherein the at least one paging PDCCH monitoring opportunity and the TRS opportunity are quasi-co-located (QCL) with a synchronization signal block (SSB).

6. The step further includes assuming that the plurality of TRS opportunities include a plurality of TRS transmitted by a network entity, The method of claim 1, wherein the step of receiving the TRS comprises the step of receiving the TRS at the TRS opportunity, based on the assumption that the plurality of TRS opportunities include the plurality of TRS transmitted by the network entity.

7. The TRS further comprises the step of receiving information indicating whether it is transmitted by a network entity in the TRS opportunity, The method according to claim 1, wherein the step of receiving the TRS comprises the step of receiving the TRS at the TRS opportunity in response to the TRS transmitted by the network entity at the TRS opportunity.

8. The method according to claim 1, wherein the TRS and the paging power saving PDCCH are quasi-co-located (QCL).

9. The method according to claim 1, wherein the TRS configuration is a cell-specific TRS configuration, and the TRS configuration is received via a system information block or a dedicated radio resource control (RRC) message.

10. The method according to claim 1, wherein the plurality of TRS opportunities are determined based on periodicity, slot offset, or a combination thereof.

11. A device for wireless communication, Processor and A memory coupled to the processor, with respect to the device, Receiving a tracking reference signal (TRS) configuration, Receiving a TRS in one of several TRS opportunities, wherein the multiple TRS opportunities receive a TRS based on the TRS configuration. Based on the TRS, monitoring the paging physical downlink control channel (PDCCH) in at least one paging PDCCH monitoring opportunity, wherein the at least one paging PDCCH monitoring opportunity is associated with the TRS and to monitor A memory containing instructions executable by the processor for performing the following: Equipped with, The aforementioned instruction is directed to the device, Receiving a paging power saving PDCCH configuration, wherein the paging power saving PDCCH configuration includes a paging power saving PDCCH monitoring configuration. Based on the aforementioned paging power saving PDCCH monitoring configuration, to receive the paging power saving PDCCH, wherein the paging power saving PDCCH provides information on the availability of the TRS at the TRS opportunity. A device that is executable by the processor to further perform the following.

12. Each paging frame in a discontinuous reception (DRX) cycle is associated with at least one of the multiple TRS opportunities. The apparatus according to claim 11.

13. The aforementioned instruction is directed to the device, Receiving first information regarding the first non-zero power channel state information reference signal (NZP-CSI-RS) resource of the TRS configuration, Based on the first information, second information regarding the second NZP-CSI-RS resource of the TRS configuration is determined. To further perform the task, the processor can perform the following actions The apparatus according to claim 11.

14. The first information comprises time domain mapping information for the first NZP-CSI-RS resource, frequency domain mapping information for the first NZP-CSI-RS resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof. The apparatus according to claim 13.

15. The at least one paging PDCCH monitoring opportunity and the TRS opportunity are quasi-co-located (QCL) with the synchronization signal block (SSB). The apparatus according to claim 11.

16. The aforementioned instruction is directed to the device, Assuming that the aforementioned multiple TRS opportunities include multiple TRSs transmitted by network entities To further perform this, it is executable by the aforementioned processor, Receiving the TRS comprises receiving the TRS at the TRS opportunity, based on the assumption that the plurality of TRS opportunities include the plurality of TRS transmitted by the network entity. The apparatus according to claim 11.

17. A method in network entities, A step of transmitting a tracking reference signal (TRS) configuration, wherein multiple TRS opportunities are based on the TRS configuration, The steps include: sending a TRS at one of the TRS opportunities among the plurality of TRS opportunities; A step of transmitting data in a paging PDCCH in at least one paging physical downlink control channel (PDCCH) monitoring opportunity based on the TRS, wherein the at least one paging PDCCH monitoring opportunity is associated with the TRS. Equipped with, A step of transmitting a paging power saving PDCCH configuration, wherein the paging power saving PDCCH configuration includes a paging power saving PDCCH monitoring configuration. A step of transmitting a paging power saving PDCCH based on the paging power saving PDCCH monitoring configuration, wherein the paging power saving PDCCH provides information on the availability of the TRS at the TRS opportunity; Methods to further prepare.

18. The method according to claim 17, further comprising the step of transmitting first information relating to a first non-zero power channel state information reference signal (NZP-CSI-RS) resource of the TRS configuration, wherein second information relating to a second NZP-CSI-RS resource of the TRS configuration is based on the first information.

19. The method according to claim 18, wherein the first information comprises time domain mapping information for the first NZP-CSI-RS resource, frequency domain mapping information for the first NZP-CSI-RS resource, a scrambling identifier, at least one downlink power control parameter, or a combination thereof.

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