Measurement control with low power wake-up signal

Abstract

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method and an apparatus for controlling operation with measurement of a low power signal in a wireless communication system are provided. The method of the UE comprises the following steps: receiving a first signal and a second signal; based on the determination that the measurement result of the first signal meets a first threshold value, skipping the measurement operation of a second signal of the serving cell; and based on a determination that the measurement result of the first signal does not satisfy a first threshold: performing a measurement operation on a second signal of the serving cell; determining whether the measurement result of the second signal meets a second threshold value; and based on the determination that the measurement result of the second signal of the serving cell satisfies the second threshold value, skipping the measurement operation of the signal of the adjacent cell.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communication systems, and more particularly to measurement control using low power signals in wireless communication systems. Background Art

[0002] With all the technical activities around the world for various candidate technologies from industry and academia, the momentum for 5th Generation (5G) or New Radio (NR) mobile communications has been growing recently. Candidate enabling technologies for 5G / NR mobile communications include: massive antenna technology that moves from legacy cellular bands to high frequencies to provide beamforming gain and support increased capacity; new waveforms (e.g., new radio access technologies (RATs)) to flexibly accommodate various services / applications with different requirements; new multiple access schemes to support large-scale connectivity, and more.

[0003] 5G mobile communications technology defines a wide frequency band, enabling high transmission rates and new services. It can be implemented not only in frequency bands "below 6 GHz," such as 3.5 GHz, but also in frequency bands "above 6 GHz," known as millimeter waves (including 28 GHz and 39 GHz). Furthermore, consideration is being given to implementing 6G mobile communications technology in terahertz bands (e.g., the 95 GHz to 3 THz band) (referred to as "beyond 5G systems") to achieve transmission rates fifty times faster than 5G mobile communications technology and ultra-low latency, one-tenth that of 5G mobile communications technology.

[0004] At the beginning of the development of 5G mobile communication technology, in order to support services and meet the performance requirements related to enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications (URLLC) and massive machine-type communications (mMTC), ongoing standardization has involved: beamforming and massive MIMO to mitigate radio wave path loss and increase radio wave transmission distance in millimeter waves, parameter set support for dynamic operation of time slot formats to effectively utilize millimeter wave resources and timeslot formats (for example, operating with multiple subcarrier spacings), initial access technology to support multi-beam transmission and broadband, definition and operation of BWP (bandwidth part), new channel coding methods (such as LDPC (low-density parity check) codes for large-scale data transmission and polar codes for highly reliable transmission of control information), L2 preprocessing, and network slicing for providing dedicated networks dedicated to specific services.

[0005] Currently, discussions are underway on improvements and performance enhancements to initial 5G mobile communication technologies in view of the services they support, and existing physical layer standardization involves technologies such as: V2X (Vehicle-to-Everything) technology, which aims to assist autonomous vehicles in making driving decisions and improve user convenience based on information sent by vehicles about their location and status; NR-U (New Radio Unlicensed) technology, which aims to operate systems that comply with various regulatory requirements in unlicensed bands; NR UE energy-saving technology; Non-Terrestrial Network (NTN) technology, which is direct UE-satellite communication for providing coverage in areas where terrestrial network communications are unavailable; and positioning technology.

[0006] Furthermore, in terms of air interface architecture / protocols, ongoing standardization involves technologies such as: Industrial Internet of Things (IIoT) technologies, which support new services through interoperability and integration with other industries; IAB (Integrated Access and Backhaul) technologies, which provide nodes for expanding network service areas by supporting wireless backhaul links and access links in an integrated manner; mobility enhancements including conditional handover and DAPS (Dual Active Protocol Stack) handover; and two-step random access (2-step RACH for NR) to simplify the random access process. Standardization is also ongoing in terms of system architecture / services, involving technologies such as: 5G baseline architecture (e.g., service-based architecture or service-based interface) for combining network function virtualization (NFV) and software-defined networking (SDN) technologies, and mobile edge computing (MEC) for receiving services based on UE location.

[0007] With the commercialization of 5G mobile communication systems, the number of connected devices, which has already grown exponentially, will be connected to the communication network, and it is expected that the functionality and performance of 5G mobile communication systems and the integrated operation of connected devices will need to be enhanced. To this end, new research is planned to include: effectively supporting extended reality (XR) such as AR (augmented reality), VR (virtual reality), and MR (mixed reality); improving 5G performance and reducing complexity by utilizing artificial intelligence (AI) and machine learning (ML); supporting AI services; supporting the metaverse; and drone communications. Summary of the Invention

[0008] Problem Solution

[0009] A user equipment (UE) in a wireless communication system, the UE comprising: a transceiver configured to receive a first signal and a second signal from a base station (BS) of a serving cell; and a processor operably coupled to the transceiver and configured to: perform a measurement operation on the first signal of the serving cell; determine whether a measurement result of the first signal satisfies a first threshold; skip the measurement operation on the second signal of the serving cell based on the determination that the measurement result of the first signal satisfies the first threshold; and based on the determination that the measurement result of the first signal does not satisfy the first threshold: perform a measurement operation on the second signal of the serving cell; determine whether the measurement result of the second signal satisfies a second threshold; and skip the measurement operation on the signal of a neighboring cell based on the determination that the measurement result of the second signal of the serving cell satisfies the second threshold.

[0010] A method for a user equipment (UE) in a wireless communication system, the method comprising: receiving a first signal and a second signal from a base station (BS) of a serving cell; performing a measurement operation on the first signal of the serving cell; and determining whether a measurement result of the first signal satisfies a first threshold; based on determining that the measurement result of the first signal satisfies the first threshold, skipping the measurement operation on the second signal of the serving cell; and based on determining that the measurement result of the first signal does not satisfy the first threshold: performing a measurement operation on the second signal of the serving cell; determining whether the measurement result of the second signal satisfies a second threshold; and based on determining that the measurement result of the second signal of the serving cell satisfies the second threshold, skipping the measurement operation on the signal of a neighboring cell.

[0011] A base station (BS) in a wireless communication system, the BS comprising: a processor; and a transceiver operably coupled to the processor, the transceiver configured to transmit a first signal and a second signal to a user equipment (UE), wherein: a measurement operation of the first signal of a serving cell including the BS is performed, whether a measurement result of the first signal satisfies a first threshold is determined, based on the determination that the measurement result of the first signal satisfies the first threshold, a measurement operation of the second signal of the serving cell is skipped, and based on the determination that the measurement result of the first signal does not satisfy the first threshold: a measurement operation of the second signal of the serving cell is performed, whether the measurement result of the second signal satisfies a second threshold is determined, and based on the determination that the measurement result of the second signal of the serving cell satisfies the second threshold, a measurement operation of a signal of a neighboring cell is skipped.

[0012] A method performed by a base station (BS) in a wireless communication system, the method comprising: transmitting a first signal and a second signal to a user equipment (UE), wherein: a measurement operation of the first signal of a serving cell including the BS is performed, whether a measurement result of the first signal satisfies a first threshold is determined, based on the determination that the measurement result of the first signal satisfies the first threshold, a measurement operation of the second signal of the serving cell is skipped, and based on a determination that the measurement result of the first signal does not satisfy the first threshold: a measurement operation of the second signal of the serving cell is performed, whether the measurement result of the second signal satisfies a second threshold is determined, and based on the determination that the measurement result of the second signal of the serving cell satisfies the second threshold, a measurement operation of a signal of a neighboring cell is skipped. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] For a more complete understanding of the present disclosure and its advantages, reference is now made to the following description taken in conjunction with the accompanying drawings, in which like reference numerals represent like parts: Figure 1 An example of a wireless network according to an embodiment of the present disclosure is shown; Figure 2 An example of a gNB according to an embodiment of the present disclosure is shown; Figure 3 An example of a UE according to an embodiment of the present disclosure is shown; Figure 4 and Figure 5 shows examples of wireless transmit and receive paths according to the present disclosure; Figure 6 An example of a signaling flow between a UE and a gNB according to an embodiment of the present disclosure is shown; Figure 7 A flowchart of a UE method according to an embodiment of the present disclosure is shown; and Figure 8 A flowchart of a UE method for utilizing measurement control of low-power signals in a wireless communication system according to an embodiment of the present disclosure is shown.

[0014] Figure 9 The structure of a UE according to an embodiment of the present disclosure is shown.

[0015] Figure 10 The structure of a base station according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0016] The present disclosure relates to wireless communication systems, and more particularly, to measurement control using low-power signals in wireless communication systems.

[0017] In one embodiment, a user equipment (UE) in a wireless communication system is provided. The UE includes a transceiver configured to receive a first signal and a second signal from a base station (BS) of a serving cell. The UE also includes a processor operably coupled to the transceiver, the processor configured to: perform a measurement operation on the first signal of the serving cell, determine whether a measurement result of the first signal meets a first threshold, and based on determining that the measurement result of the first signal meets the first threshold, skip measuring the second signal of the serving cell; and based on determining that the measurement result of the first signal does not meet the first threshold: perform a measurement operation on the second signal of the serving cell, determine whether the measurement result of the second signal meets a second threshold, and based on determining that the measurement result of the second signal of the serving cell meets the second threshold, skip measuring the signal of a neighboring cell.

[0018] In another embodiment, a method for a UE in a wireless communication system is provided. The method includes: receiving a first signal and a second signal from a base station (BS) of a serving cell, performing a measurement operation on the first signal of the serving cell, and determining whether a measurement result of the first signal satisfies a first threshold; skipping the measurement operation on the second signal of the serving cell based on determining that the measurement result of the first signal satisfies the first threshold; and based on determining that the measurement result of the first signal does not satisfy the first threshold: performing a measurement operation on the second signal of the serving cell, determining whether the measurement result of the second signal satisfies a second threshold; and skipping the measurement operation on a signal of a neighboring cell based on determining that the measurement result of the second signal of the serving cell satisfies the second threshold.

[0019] In yet another embodiment, a base station (BS) in a wireless communication system is provided. The BS includes: a processor; and a transceiver operably coupled to the processor, the transceiver configured to transmit a first signal and a second signal to a UE, wherein: a measurement operation is performed on the first signal of a serving cell including the BS, a determination is made as to whether a measurement result of the first signal satisfies a first threshold, based on the determination that the measurement result of the first signal satisfies the first threshold, a measurement operation on the second signal of the serving cell is skipped, and based on the determination that the measurement result of the first signal does not satisfy the first threshold: a measurement operation is performed on the second signal of the serving cell, a determination is made as to whether a measurement result of the second signal satisfies a second threshold, and based on the determination that the measurement result of the second signal of the serving cell satisfies the second threshold, a measurement operation on a signal of a neighboring cell is skipped.

[0020] Other technical features may be apparent to those skilled in the art from the following drawings, descriptions, and claims.

[0021] Before proceeding to the following detailed description, it may be advantageous to set forth the definitions of certain words and phrases used throughout this patent document. The term "coupling" and its derivatives refer to any direct or indirect communication between two or more elements, regardless of whether these elements are in physical contact with each other. The terms "send," "receive," and "communicate" and their derivatives encompass direct and indirect communication. The terms "include" and "comprises" and their derivatives mean, including but not limited to. The term "or" is inclusive, meaning and / or. The phrase "associated with..." and its derivatives mean including, included within, interconnected with, including, contained within, connected to or connected with, coupled to or coupled with, communicable with, collaborative with, interlaced, juxtaposed, adjacent to, coupled to or combined with, having, having characteristics, having a relationship with, or having a relationship with, etc. The term "controller" means any device, system, or part thereof that controls at least one operation. Such a controller can be implemented in hardware or a combination of hardware and software and / or firmware. The functions associated with any particular controller can be centralized or distributed, whether local or remote. The phrase "at least one of" when used with a list of items means that different combinations of one or more of the listed items may be used, and that only one item in the list may be required. For example, "at least one of A, B, and C" includes any of the following combinations: A, B, C, A and B, A and C, B and C, and A, B, and C.

[0022] Furthermore, the various functions described below may be implemented or supported by one or more computer programs, each of which is formed of computer-readable program code and embodied in a computer-readable medium. The terms "application" and "program" refer to one or more computer programs, software components, sets of instructions, procedures, functions, objects, classes, instances, related data, or portions thereof, suitable for implementation in suitable computer-readable program code. The phrase "computer-readable program code" includes any type of computer code, including source code, object code, and executable code. The phrase "computer-readable medium" includes any type of medium that can be accessed by a computer, such as read-only memory (ROM), random-access memory (RAM), hard drives, compact disks (CDs), digital video disks (DVDs), or any other type of memory. "Non-transitory" computer-readable media excludes wired, wireless, optical, or other communication links that transmit transient electrical or other signals. Non-transitory computer-readable media includes media that can permanently store data, as well as media that can store data and subsequently rewrite it, such as rewritable optical disks or erasable memory devices.

[0023] Definitions for certain other words and phrases are provided throughout this patent document. Those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior as well as future uses of such defined words and phrases.

[0024] Discussed below Figures 1 to 8 The various embodiments used to describe the principles of the present disclosure in this patent document are merely illustrative and should not be interpreted in any way as limiting the scope of the present disclosure. Those skilled in the art will understand that the principles of the present disclosure can be implemented in any appropriately arranged system or device.

[0025] To meet the increased demand for wireless data traffic since the deployment of 4G communication systems, and to enable a variety of vertical applications, 5G / NR communication systems have been deployed and are currently being deployed. 5G / NR communication systems are considered to be implemented in higher frequency (millimeter wave) bands (e.g., 28 GHz or 60 GHz bands) to achieve higher data rates, or in lower frequency bands (such as 6 GHz) to achieve robust coverage and mobility support. To reduce radio wave propagation losses and increase transmission distance, beamforming, massive multiple-input multiple-output (MIMO), omnidirectional MIMO (FD-MIMO), array antennas, analog beamforming, and large antenna technologies are being discussed in 5G / NR communication systems.

[0026] In addition, in 5G / NR communication systems, development of system network improvements is underway based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communications, wireless backhaul, mobile networks, cooperative communications, coordinated multi-point (CoMP), and receiver-side interference cancellation.

[0027] The discussion of 5G systems and their associated frequency bands is for reference only, as certain embodiments of the present disclosure may be implemented in 5G systems. However, the present disclosure is not limited to 5G systems or their associated frequency bands, and embodiments of the present disclosure may be used in conjunction with any frequency band. For example, aspects of the present disclosure may also be applied to 5G communication systems, 6G, or even higher-level deployments that may utilize terahertz (THz) frequency bands.

[0028] The following documents are hereby incorporated by reference into the present disclosure as if fully set forth herein: 3GPP TS 38.211, “NR; Physical channels and modulation”; 3GPP TS 38.212, “NR; Multiplexing and channel coding”; 3GPP TS 38.213, “NR; Physical Layer Procedures for Control”; 3GPP TS 38.214, “NR; Physical Layer Procedures for data”; 3GPP TS 38.304, “NR; User Equipment (UE) procedures in idle mode and RRC inactive state”; 3GPP TS 38.331, “NR; Radio Resource Control (RRC) protocol specification”; 3GPP TS 23.122, “NAS functions NAS functions related to Mobile Station (MS) in RRC_IDLE state"; 3GPP TS 38.133, "NR: Requirements for Support of Radio Resource Management"; and 3GPP TS 38.101-1, "NR; User Equipment (UE) radiotransmission and reception; Part 1: Range 1 Standalone".

[0029] the following Figures 1 to 3 Various embodiments are described for implementation using Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) communication techniques in a wireless communication system. Figures 1 to 3The description is not meant to imply physical or architectural limitations to the manner in which different embodiments may be implemented. Different embodiments of the present disclosure may be implemented in any suitably arranged communications system.

[0030] Figure 1 An exemplary wireless network according to an embodiment of the present disclosure is shown. Figure 1 The embodiment of the wireless network shown is for illustration only. Other embodiments of the wireless network 100 may be used without departing from the scope of this disclosure.

[0031] like Figure 1 As shown, the wireless network includes gNB 101 (e.g., base station, BS), gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one network 130, such as the Internet, a proprietary Internet Protocol (IP) network, or other data network.

[0032] gNB 102 provides wireless broadband access to network 130 for a plurality of first user equipment (UEs) located within gNB 102's coverage area 120. The plurality of first UEs include: UE 111, which may be located in a small business; UE 112, which may be located in an enterprise; UE 113, which may be a WiFi hotspot; UE 114, which may be located in a first residence; UE 115, which may be located in a second residence; and UE 116, which may be a mobile device such as a cellular phone, a wireless laptop, a wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 for a plurality of second UEs within gNB 103's coverage area 125. The plurality of second UEs include UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 may communicate with each other and with UEs 111-116 using 5G / NR, Long Term Evolution (LTE), Long Term Evolution Advanced (LTE-A), WiMAX, WiFi, or other wireless communication technologies.

[0033] Depending on the network type, the term "base station" or "BS" can refer to any component (or collection of components) configured to provide wireless access to a network, such as a transmission point (TP), a transmit-receive point (TRP), an enhanced base station (eNodeB or eNB), a 5G / NR base station (gNB), a macrocell, a femtocell, a WiFi access point (AP), or other wireless-enabled devices. A base station can provide wireless access according to one or more wireless communication protocols, such as 5G / NR Third Generation Partnership Project (3GPP) NR, Long Term Evolution (LTE), LTE-Advanced (LTE-A), High-Speed ​​Packet Access (HSPA), Wi-Fi 802.11a / b / g / n / ac, and others. For convenience, the terms "BS" and "TRP" are used interchangeably in this patent document to refer to a network infrastructure component that provides wireless access to a remote terminal. Additionally, depending on the network type, the term "user equipment" or "UE" can refer to any component, such as a "mobile station," "subscriber station," "remote terminal," "wireless terminal," "reception point," or "user device." For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to a remote wireless device that wirelessly accesses a BS, whether the UE is a mobile device (such as a mobile phone or smartphone) or a generally considered fixed device (such as a desktop computer or vending machine).

[0034] Dashed lines illustrate the approximate extents of coverage areas 120 and 125, which are shown as generally circular for purposes of illustration and explanation. It should be clearly understood that coverage areas associated with gNBs, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the wireless environment associated with natural and man-made obstacles.

[0035] As described in more detail below, one or more of UEs 111-116 include circuitry, procedures, or a combination thereof for utilizing low-power signals in a wireless communication system for measurement control. In certain embodiments, one or more of gNBs 101-103 include circuitry, procedures, or a combination thereof for supporting measurement control utilizing low-power signals in a wireless communication system.

[0036] Although Figure 1 An example of a wireless network is shown, but Figure 1Various changes may be made. For example, the wireless network can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can each communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. Furthermore, gNBs 101, 102, and / or 103 can provide access to other or additional external networks, such as an external telephone network or other type of data network.

[0037] Figure 2 An exemplary gNB 102 according to an embodiment of the present disclosure is shown. Figure 2 The embodiment of the gNB 102 shown is for illustration only, and Figure 1 gNBs 101 and 103 may have the same or similar configurations. However, gNBs have a wide variety of configurations, and Figure 2 The scope of this disclosure is not limited to any particular implementation of the gNB.

[0038] like Figure 2 As shown, gNB 102 includes multiple antennas 205a to 205n, multiple transceivers 210a to 210n, a controller / processor 225, memory 230, and a backhaul or network interface 235.

[0039] RF transceivers 210a to 210n receive incoming RF signals from antennas 205a to 205n, such as signals transmitted by UEs in network 100. Transceivers 210a to 210n downconvert the incoming RF signals to generate IF signals or baseband signals. The IF signals or baseband signals are processed by receive (RX) processing circuitry within transceivers 210a to 210n and / or controller / processor 225, which filters, decodes, and / or digitizes the baseband signals or IF signals to generate processed baseband signals. Controller / processor 225 may further process the baseband signals.

[0040] The transmit (TX) processing circuitry in transceivers 210a to 210n and / or the controller / processor 225 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 225. The TX processing circuitry encodes, multiplexes, and / or digitizes the output baseband data to generate processed baseband signals or IF signals. Transceivers 210a to 210n up-convert the baseband signals or IF signals into RF signals that are transmitted via antennas 205a to 205n.

[0041] The controller / processor 225 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 225 may control the transceivers 210a through 210n to receive uplink (UL) channel signals and transmit downlink (DL) channel signals in accordance with well-known principles. The controller / processor 225 may also support additional functionality, such as more advanced wireless communication capabilities. For example, the controller / processor 225 may support beamforming or directional routing operations, which weight incoming and outgoing signals to and from the multiple antennas 205a through 205n differently to effectively steer outgoing signals in a desired direction. The controller / processor 225 in the gNB 102 may also support any of a wide variety of other functions.

[0042] The controller / processor 225 can also execute programs and other processes, such as an OS, residing in the memory 230. The controller / processor 225 can move data into or out of the memory 230 as needed by the executing process. The controller / processor 225 can also execute programs and other processes residing in the memory 230, such as processes for supporting measurement control using low-power signals in wireless communication systems.

[0043] The controller / processor 225 is also coupled to a backhaul or network interface 235. The backhaul or network interface 235 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. The interface 235 can support communication over any suitable wired or wireless connection. For example, when the gNB 102 is implemented as part of a cellular communication system (such as one supporting 5G / NR, LTE, or LTE-A), the interface 235 can allow the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the interface 235 can allow the gNB 102 to communicate over a wired or wireless local area network (LAN) or with a larger network (such as the Internet) via a wired or wireless connection. The interface 235 includes any suitable structure that supports communication over a wired or wireless connection, such as Ethernet or a transceiver.

[0044] Memory 230 is coupled to controller / processor 225. A portion of memory 230 may include RAM, and another portion of memory 230 may include flash memory or other ROM.

[0045] Although Figure 2 An example of a gNB 102 is shown, but the Figure 2 For example, gNB 102 may include any number of Figure 2 Each component shown. In addition, Figure 2The various components in the diagram may be combined, further subdivided, or omitted, and additional components may be added according to specific needs.

[0046] Figure 3 An exemplary UE 116 is shown in accordance with an embodiment of the present disclosure. Figure 3 The embodiment of the UE 116 shown is for illustration only, and Figure 1 UEs 111 to 115 may have the same or similar configurations. However, UEs have a wide variety of configurations, and Figure 3 The scope of this disclosure is not limited to any particular implementation of the UE.

[0047] like Figure 3 As shown, UE 116 includes antenna 305, transceiver 310, and microphone 320. UE 116 also includes speaker 330, processor 340, input / output (I / O) interface (IF) 345, input device 350, display 355, and memory 360. Memory 360 includes operating system (OS) 361 and one or more applications 362.

[0048] Transceiver 310 receives incoming RF signals from antenna 305, transmitted by a gNB of network 100. Transceiver 310 downconverts the incoming RF signals to generate an intermediate frequency (IF) signal or a baseband signal. The IF signal or baseband signal is processed by RX processing circuitry within transceiver 310 and / or processor 340, which filters, decodes, and / or digitizes the baseband signal or IF signal to generate a processed baseband signal. The RX processing circuitry transmits the processed baseband signal to speaker 330 (e.g., for voice data) or is processed by processor 340 (e.g., for web browsing data).

[0049] The TX processing circuitry and / or processor 340 in transceiver 310 receives analog or digital voice data from microphone 320, or receives other outgoing baseband data (such as web data, email, or interactive video game data) from processor 340. The TX processing circuitry encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband signal or IF signal. Transceiver 310 up-converts the baseband signal or IF signal into an RF signal that is transmitted via antenna 305.

[0050] The processor 340 may include one or more processors or other processing devices and execute the OS 361 stored in the memory 360 to control the overall operation of the UE 116. For example, the processor 340 may control the transceiver 310 to receive downlink channel signals and transmit uplink channel signals according to well-known principles. In some embodiments, the processor 340 includes at least one microprocessor or microcontroller.

[0051] Processor 340 is also capable of executing other processes and programs residing in memory 360, such as processes for measurement control utilizing low-power signals in wireless communication systems. Processor 340 can move data into or out of memory 360 as needed by the executing processes. In some embodiments, processor 340 is configured to execute application 362 based on OS 361 or in response to signals received from a gNB or an operator. Processor 340 is also coupled to I / O interface 345, which provides UE 116 with the ability to connect to other devices, such as laptops and handheld computers. I / O interface 345 provides a communication path between these accessories and processor 340.

[0052] The processor 340 is also coupled to an input device 350 (which includes, for example, a touch screen, a keypad, etc.) and a display 355. An operator of the UE 116 can use the input device 350 to enter data into the UE 116. The display 355 can be a liquid crystal display, a light emitting diode display, or other display capable of presenting text and / or at least limited graphics (such as from a website).

[0053] Memory 360 is coupled to processor 340. A portion of memory 360 may include random access memory (RAM), and another portion of memory 360 may include flash memory or other read-only memory (ROM).

[0054] Although Figure 3 An example of a UE 116 is shown, but the Figure 3 Make various changes. For example, Figure 3 Various components in the can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, processor 340 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). In another example, transceiver 310 can include any number of transceivers and signal processing chains and can be connected to any number of antennas. In addition, although Figure 3 The UE 116 is shown configured as a mobile phone or smartphone, but the UE may also be configured to operate as other types of mobile or stationary devices.

[0055] Figure 4 and Figure 5Example wireless transmit and receive paths according to the present disclosure are shown. In the following description, transmit path 400 may be described as being implemented in a gNB (such as gNB 102), while receive path 500 may be described as being implemented in a UE (such as UE 116). However, it is understood that receive path 500 may also be implemented in a gNB, and transmit path 400 may also be implemented in a UE. In some embodiments, receive path 500 is configured to support measurement control using low-power signals in a wireless communication system.

[0056] like Figure 4 The illustrated transmit path 400 includes a channel coding and modulation block 405, a serial to parallel conversion (S to P) block 410, an inverse fast Fourier transform (IFFT) block of size N 415, a parallel to serial conversion (P to S) block 420, an add cyclic prefix block 425, and an upconverter (UC) 430. Figure 5 The illustrated receive path 500 includes a downconverter (DC) 555 , a remove cyclic prefix block 560 , a serial-to-parallel conversion (S to P) block 565 , a size-N fast Fourier transform (FFT) block 570 , a parallel-to-serial conversion (P to S) block 575 , and a channel decoding and demodulation block 580 .

[0057] like Figure 4 As shown, channel coding and modulation block 405 receives a set of information bits, applies coding (such as low-density parity check (LDPC) coding), and modulates the input bits (such as with quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulation symbols.

[0058] Serial-to-parallel conversion block 410 converts (e.g., demultiplexes) the serially modulated symbols into parallel data to generate N parallel symbol streams, where N is the IFFT / FFT size used in gNB 102 and UE 116. Size-N IFFT block 415 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial conversion block 420 converts (e.g., multiplexes) the parallel time-domain output symbols from Size-N IFFT block 415 to generate a serial time-domain signal. Add cyclic prefix block 425 inserts a cyclic prefix into the time-domain signal. Upconverter 430 modulates (e.g., upconverts) the output of Add cyclic prefix block 425 to RF frequency for transmission via a wireless channel. The signal may also be filtered at baseband before conversion to RF frequency.

[0059] The RF signal transmitted from gNB 102 reaches UE 116 after passing through the wireless channel, and operations opposite to those at gNB 102 are performed at UE 116.

[0060] like Figure 5 As shown, downconverter 555 downconverts the received signal to baseband frequency, and cyclic prefix removal block 560 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel conversion block 565 converts the time-domain baseband signal into parallel time-domain signals. Size-N FFT block 570 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 575 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 580 demodulates and decodes the modulated symbols to recover the original input data stream.

[0061] Each of gNBs 101 to 103 may implement a similar method for transmitting in the downlink to UEs 111 to 116. Figure 4 The transmission path 400 is shown and can be implemented similarly to the reception from UEs 111 to 116 in the uplink. Figure 5 Receive path 500 is shown. Similarly, each of UEs 111-116 may implement transmit path 400 for transmitting in the uplink to gNBs 101-103 and may implement receive path 500 for receiving in the downlink from gNBs 101-103.

[0062] Can be implemented using hardware only, or a combination of hardware and software / firmware Figure 4 and Figure 5 As a specific example, Figure 4 and Figure 5 At least some of the components in can be implemented in software, while other components can be implemented in configurable hardware, or a mixture of software and configurable hardware. For example, FFT block 570 and IFFT block 415 can be implemented as configurable software algorithms, where the value of size N can be modified according to the implementation.

[0063] Furthermore, although described as using FFT and IFFT, this is merely illustrative and should not be construed as limiting the scope of the present disclosure. Other types of transforms, such as discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) functions, may also be used. It will be appreciated that the value of the variable N for the DFT and IDFT functions may be any integer (such as 1, 2, 3, 4, etc.), while the value of the variable N for the FFT and IFFT functions may be any integer that is a power of two (such as 1, 2, 4, 8, 16, etc.).

[0064] although Figure 4 and Figure 5 Examples of wireless transmit and receive paths are shown, but Figure 4 and Figure 5 Make various changes. For example, Figure 4 and Figure 5 The various components in the can be combined, further subdivided or omitted, and additional components can be added according to specific needs. Figure 4 and Figure 5 It is intended to illustrate examples of the types of transmit and receive paths that may be used in a wireless network. Any other suitable architecture may be used to support wireless communications in a wireless network.

[0065] In the 3GPP wireless standards, New Radio (NR, Radio Access Technology (RAT)) has been specified as 5G wireless communications. One of the features of NR is UE energy saving. NR supports discontinuous reception (DRX) for UEs in RRC idle / inactive mode / state or RRC connected state, allowing the UE to stop receiving signals or channels during the DRX inactive period within a DRX cycle, thereby saving power. In Rel-16, enhanced DRX for RRC connected state (C-DRX) was introduced, using a new DCI format to help UEs skip the DRX on-duration within the C-DRX cycle, enabling further energy savings.

[0066] In Rel-17, enhancements to DRX for RRC idle / inactive mode / state were introduced, using a Paging Early Indication (PEI) to allow the UE to skip monitoring paging occasions, enabling additional energy savings. However, in order for the UE to monitor the new DCI format including the PEI, the UE still needs to perform synchronization and / or measurements based on the Synchronization Signal Block (SSB) and decode the PDCCH according to the PEI monitoring / reception occasions in the time domain, preventing the UE's radio from being completely shut down for long durations. To avoid this and achieve further energy savings, an additional radio receiver is considered, where the additional radio receiver is only used to monitor a specific set of signals (hereinafter referred to as a Low Power Wake-up Signal (LP-WUS)) with extremely low power consumption, and the main radio receiver can be shut down or operated at extremely low power for long durations.

[0067] The specific signal set may also include a compact synchronization signal and / or measurement reference signal, so the specific signal set may also be used for measurement purposes. The present disclosure focuses on using the LP-WUS that can be received by an additional wireless receiver to perform measurement control on the serving cell and / or neighboring cells.

[0068] In the 3GPP standard specification, for the current NR synchronization signal block (SSB), the measurement rules for cell reselection are defined in Table 1 as follows.

[0069] Table 1. NR SSB measurement rules

[0070] For Table 1, the following parameters are provided, as shown in Table 2.

[0071] Table 2. Parameters of Table 1

[0072] In the present disclosure, the following operations are provided for the measurement rules of the cell reselection operation.

[0073] Table 3. Measurement rules for cell reselection

[0074] Table 4. Relaxation measures

[0075] The above relaxation measurement and no measurement do not apply to VarMeasIdleConfig frequencies included in the UE (if configured and the UE supports dual connectivity or carrier aggregation between those frequencies and the frequency of the current serving cell).

[0076] Table 5. Relaxation measurement criteria

[0077] Table 6. Relaxation measurement criteria

[0078] Table 7. Relaxation measurement criteria

[0079] Table 8. Relaxation measurement criteria

[0080] Figure 6 An example of a signaling flow between a UE and a gNB according to an embodiment of the present disclosure is shown. The method signaling flow 600 may be performed by a UE (e.g., Figure 1 111 to 116) and base stations (e.g., as shown Figure 1 101 to 103) are performed as shown. Figure 6 The illustrated embodiment of signaling flow 600 is for illustration only. Figure 6 One or more of the components shown may be implemented in dedicated circuitry configured to perform the functions described, or one or more components may be implemented by one or more processors executing instructions to perform the functions described.

[0081] Figure 7 700 is a flowchart of a UE method according to an embodiment of the present disclosure. Figure 1 111 to 116 ) are performed. Figure 7 The illustrated embodiment of method 700 is for illustration only. Figure 7 One or more of the components shown may be implemented in dedicated circuitry configured to perform the functions described, or one or more components may be implemented by one or more processors executing instructions to perform the functions described.

[0082] Figure 6 and Figure 7 An example of an embodiment of how a UE controls measurements on a serving cell and / or neighboring cells using SSB and LP-WUS is described. Note that, here, LP-WUS refers only to the LP-WUS of the serving cell. Figure 6 This section describes an example signaling flow between a UE and a serving gNB. 601 indicates a UE that supports LP-WUS-based synchronization and measurement in addition to SSB-based synchronization and measurement. For example, this UE is in the RRC Idle / Inactive state. However, this embodiment is also applicable to UEs in an RRC connection. 605 indicates the gNB controlling the serving cell of UE 601. 611 indicates that the LP-WUS configuration of the serving cell (e.g., frequency and / or time domain resource information, LP-WUS sequence code-related information, etc.), Threshold 1, Threshold 2, Threshold 3, Timer 1, Timer 2, and / or existing parameters of the measurement rules described above are transmitted via system information.

[0083] It should be noted that the system information may not configure all of them. Once the UE receives 611 the system information, in 621 the UE performs synchronization and / or measurement on the LP-WUS and SSB according to the measurement rules, which Figure 7 It should be noted that if the UE is in the RRC connected state, a UE-specific RRC message may be used in 611 to configure the LP-WUS and the corresponding measurement control instead of the system information.

[0084] Figure 7An example flowchart of UE behavior is described. 701 indicates that the UE has received the LP-WUS configuration, threshold 1, threshold 2, threshold 3, timer 1, timer 2, and / or existing parameters for measurement rules via system information (SI). It should be noted that the UE may receive some of these parameters via system information, such as the LP-WUS configuration, threshold 1, threshold 2, threshold 3, and existing parameters for measurement rules for the serving cell, or the LP-WUS configuration, timer 1, timer 2, and existing parameters for measurement rules, or any other combination. The UE then monitors the LP-WUS and performs synchronization and / or measurements based on the LP-WUS. It should be noted that once the UE performs synchronization and / or measurements based on the LP-WUS, it may no longer perform synchronization and / or measurements based on the SSB.

[0085] Alternatively, as described in 751 , if the 751 condition is satisfied (yes), the UE monitors the LP-WUS and performs synchronization and / or measurement based on the LP-WUS ( 711 ), otherwise, the UE performs synchronization and / or measurement based on the SSB ( 731 ).

[0086] Assuming that thresholds 1, 2, and 3 are configured in 701, the UE checks in 721 whether the measurement result from 711 is (equal to or) worse than threshold 1. Examples of measurement results may be RSRP and / or RSRQ measured for the LP-WUS. If both RSRP and RSRQ measured based on the LP-WUS are used, separate thresholds may be configured for RSRP and RSRQ in 701, such as threshold 1-A and threshold 1-B. If {RSRP measured based on the LP-WUS is (equal to or) worse than threshold 1-A} and / or {RSRQ measured based on the LP-WUS is (equal to or) worse than threshold 1-B}, then the condition 721 is satisfied. Alternatively, the UE may check whether an equation based on the measurement result from 711 is (equal to or) worse than threshold 1. Similar equations such as Srxlev and / or Squal may be used, for example. Note that in this case, RSRP and / or RSRQ are derived from LP-WUS based measurements and, possibly, separate offsets and / or thresholds may be configured / used in the equations (in addition to the offsets and thresholds used in the current Srxlev and / or Squal equations).

[0087] It should be noted that the use of a common offset and / or threshold used in the current Srxlev and / or Squal is not precluded. If different equations are used for RSRP and RSRQ (e.g., Srxlev based on RSRP and Squal based on RSRQ), separate thresholds may be configured for the equations, e.g., threshold 1-A, threshold 1-B, and if {the equation based on RSRP measured for the LP-WUS is (equal to or) worse than threshold 1-A} and / or {the equation based on RSRQ measured for the LP-WUS is (equal to or) worse than threshold 1-B}, the condition 721 is satisfied. If the measurement result for the LP-WUS (or the equation based on the measurement result) is not (equal to or) worse than threshold 1 (i.e., if the condition 721 is not satisfied), the UE continues to perform synchronization and / or measurement based only on the LP-WUS (711).

[0088] If the measurement result of the LP-WUS (or an equation based on the measurement result) is (equal to or) worse than threshold 1 (i.e., if the condition in 721 is satisfied), the UE performs synchronization and / or measurement based on the SSB of the serving cell in 731. Once the UE starts performing synchronization and / or measurement on the SSB of the serving cell in 731, the UE applies existing measurement rules for measurement of neighboring cells based on the measurement result of the SSB of the serving cell in 741.

[0089] Note that in 731, the UE may perform synchronization and / or measurements only on the SSB of the serving cell (i.e., not perform synchronization and / or measurements based on the LP-WUS and / or not monitor / receive the LP-WUS). Alternatively, in addition to synchronization and / or measurements based on the LP-WUS, the UE may also perform synchronization and / or measurements based on the SSB of the serving cell. Once the UE has performed synchronization and / or measurements based on the SSB of the serving cell in 731, in 751, the UE checks whether the Srxlev derived from the measurement results of the SSB is (equal to or) better than a threshold value 2. If the Srxlev derived from the measurement results of the SSB is (equal to or) better than the threshold value 2 (i.e., if the condition in 751 is satisfied), the UE switches back to performing synchronization and / or measurements based only on the LP-WUS in 711. If Srxlev derived based on the measurement result of the SSB is not (equal to or) better than threshold 2 (i.e., if the condition 751 is not satisfied), the UE continues to perform synchronization and / or measurement on the SSB of the serving cell and / or the SSB of the neighboring cell in 731 and 741.

[0090] Alternatively, in 751, the UE may check {(whether Srxlev derived based on the SSB measurement results is better than threshold 2) and / or (whether Squal derived based on the SSB measurement results is better than threshold 3)}. If this condition is met, the UE switches back to performing synchronization and / or measurements based solely on the LP-WUS in 711. Otherwise, the UE continues to perform synchronization and / or measurements on the SSB of the serving cell and / or the SSB of the neighboring cell in 731 and 741. Assuming that Timer 1 and Timer 2 are configured in 701, in 711, the UE performs synchronization and / or measurements based on the LP-WUS during the period when Timer 1 is running. If Timer 1 expires / stops, the UE stops performing synchronization and / or measurements based on the LP-WUS. During the period when Timer 2 is running, the UE performs synchronization and / or measurements based on the SSB of the serving cell and / or the SSB of the neighboring cell in 731 and 741.

[0091] If Timer 2 expires / stops, the UE stops performing synchronization and / or measurements based on the SSB of the serving cell. Alternatively, a single timer (e.g., Timer 1) may be used to switch between performing synchronization and / or measurements based on the LP-WUS and based on the SSB of the serving cell. For example, if Timer 1 is running, the UE performs synchronization and / or measurements based on the LP-WUS, and if Timer 1 expires / stops, the UE performs synchronization and / or measurements based on the SSB of the serving cell.

[0092] Alternatively, timing information indicating when the UE performs synchronization and / or measurement based on the LP-WUS and when the UE performs synchronization and / or measurement on the SSB of the serving cell (e.g., system frame number (SFN), subframe number, time slot number, duration for performing synchronization and / or measurement based on the LP-WUS or the SSB of the serving cell, time interval between two consecutive durations, and / or offset indicating the start time of the first duration, etc.) may be configured / used. Note that the threshold and the timer may be used together. For example, if threshold 1, threshold 2, threshold 3, timer 1, and timer 2 are configured, the UE performs synchronization and / or measurement based only on the LP-WUS in 711 unless {the measurement result of the LP-WUS (or an equation based on the measurement result) is (equal to or) worse than threshold 1} or {timer 1 expires / stops} is satisfied (i.e., when both {the measurement result of the LP-WUS (or an equation based on the measurement result) is better than threshold 1} and {timer 1 is running} are satisfied, the UE performs synchronization or measurement based only on the LP-WUS in 711). When {the measurement result obtained from the LP-WUS (or an equation based on the measurement result) is (equal to or) worse than threshold 1} or {timer 2 is running} is satisfied, the UE switches to performing synchronization and / or measurement on the SSB of the serving cell and / or the SSB of the neighboring cell in 731 and 741.

[0093] Then, when both {Srxlev (and Squal) obtained based on the measurement result of the SSB of the serving cell is better than threshold 2 (and threshold 3)} and {Timer 2 expires / stops} are satisfied, the UE switches back to performing synchronization and / or measurement based only on the LP-WUS in 711. It should be noted that in 711, when the UE triggers the execution of synchronization and / or measurement based on the LP-WUS, Timer 1 may be started, and in 731, when the UE triggers the execution of synchronization and / or measurement on the SSB of the serving cell, Timer 2 may be started.

[0094] Alternatively, when timer 1 is started, in 711, the UE may trigger synchronization and / or measurement based on the LP-WUS (if the timing of timer 1 (re)start and stop is semi-statically configured, for example, by SFN, subframe number, time slot number, timer 1 duration, a timer interval between two consecutive timer 1 durations, and / or an offset indicating a time instance at which the first timer 1 is run), and when timer 2 is started, in 731, the UE may trigger synchronization and / or measurement on the SSB of the serving cell (if the timing of timer 2 (re)start and stop is semi-statically configured, for example, by SFN, subframe number, time slot number, timer 2 duration, a timer interval between two consecutive timer 2 durations, and / or an offset indicating a time instance at which the first timer 2 is run).

[0095] As another example of a combination of a threshold and a timer, if the UE sets a timer based on the measurement result of the LP-WUS and the configured threshold (for example, if Figure 7 If the UE switches from performing synchronization and / or measurement based on the LP-WUS to performing synchronization and / or measurement based on the SSB of the serving cell (condition 721 in the UE), the UE starts a timer configured for the previous signal (LP-WUS) in addition to the synchronization and / or measurement based on the SSB of the serving cell in 731 and performs synchronization and / or measurement based on the previous signal (LP-WUS) during the time period when the timer is running. By performing additional measurement on the LP-WUS in addition to the timer, the UE can check whether the UE Figure 7 , and if the condition 721 is not satisfied (ie, the answer is No in the condition 721), the UE performs synchronization and / or measurement based only on the LP-WUS (rather than performing synchronization and / or measurement based on the SSB of the serving cell).

[0096] The above example illustrates a UE switching from performing synchronization and / or measurements based on LP-WUS to performing synchronization and / or measurements based on the serving cell's SSB. However, this also applies to the case where the UE switches from performing synchronization and / or measurements based on the serving cell's SSB to performing synchronization and / or measurements based on LP-WUS. As another example, the UE can detect its context (e.g., stationary, driving, using an application, etc.). Based on this context, the UE can adjust its measurement strategy and / or thresholds. For example, when the UE is stationary and engaged in low-data tasks, it can rely on LP-WUS to maintain connectivity while saving power. However, when the UE is engaged in high-data tasks (e.g., streaming media) and / or driving, it may require detailed measurements and, therefore, SSB. Furthermore, the UE can adaptively adjust the threshold for switching between LP-WUS and SSB. For example, if the UE determines it is in an area with poor signal quality (based on historical measurements), it can lower the threshold for switching to SSB. Alternatively, LP-WUS can be disabled based on user preferences (for which performance is a higher priority and battery life is less of a concern).

[0097] Figure 8 8 is a flow chart illustrating a UE method 800 for utilizing measurement control of low power signals in a wireless communication system. The method 800 may be performed by a UE (e.g., Figure 1 111 to 116 ) are performed. Figure 8 The illustrated embodiment of method 800 is for illustration only. Figure 8 One or more of the components shown may be implemented in dedicated circuitry configured to perform the functions described, or one or more components may be implemented by one or more processors executing instructions to perform the functions described.

[0098] like Figure 8 As shown, the method 800 starts at step 802. In step 802, the UE receives a first signal and a second signal from a BS of a serving cell.

[0099] In step 802, the first signal of the serving cell is LP-WUS, and the second signal of the serving cell is SSB.

[0100] In step 804, the UE performs a measurement operation on a first signal of the serving cell. In step 806, the UE determines whether the measurement result of the first signal meets a first threshold. In step 808, the UE skips the measurement operation on a second signal of the serving cell based on determining that the measurement result of the first signal meets the first threshold.

[0101] In step 810, the UE performs a measurement operation on a second signal of the serving cell based on determining that the measurement result of the first signal does not meet the first threshold. In step 812, the UE determines whether the measurement result of the second signal meets the second threshold. In step 814, the UE skips measuring the signal of the neighboring cell based on determining that the measurement result of the second signal of the serving cell meets the second threshold. In step 814, the signal of the neighboring cell is SSB.

[0102] In one embodiment, the UE receives system information from the BS, the system information including a first threshold for the first signal and a second threshold for the second signal.

[0103] In one embodiment, when initiating the measurement operation on the second signal of the serving cell, the UE performs the measurement operation on the first signal and the second signal of the serving cell, or performs the measurement operation on the second signal of the serving cell.

[0104] In one embodiment, the UE receives system information including a third threshold, and switches from measuring the second signal of the serving cell to measuring the first signal of the serving cell when the measurement result of the second signal of the serving cell meets the third threshold.

[0105] In one embodiment, the UE receives system information from the BS, the system information including a first timer and a second timer for a measurement operation.

[0106] In one embodiment, the UE performs a measurement operation on a first signal of the serving cell until a first timer expires, and initiates a measurement operation on a second signal of the serving cell after the first timer expires.

[0107] In one embodiment, the UE performs a measurement operation on the second signal of the serving cell until a second timer expires, and initiates a measurement operation on the first signal of the serving cell after the second timer expires.

[0108] In one embodiment, a user equipment (UE) in a wireless communication system includes: a transceiver configured to receive a first signal and a second signal from a base station (BS) of a serving cell; and a processor operably coupled to the transceiver, the processor configured to: perform a measurement operation on the first signal of the serving cell; determine whether a measurement result of the first signal meets a first threshold; skip the measurement operation on the second signal of the serving cell based on the determination that the measurement result of the first signal meets the first threshold; and based on the determination that the measurement result of the first signal does not meet the first threshold: perform a measurement operation on the second signal of the serving cell; determine whether the measurement result of the second signal meets a second threshold; and skip the measurement operation on the signal of a neighboring cell based on the determination that the measurement result of the second signal of the serving cell meets the second threshold.

[0109] In one embodiment, the first signal of the serving cell is a low power wake-up signal (LP-WUS); the second signal of the serving cell is a synchronization signal / physical broadcast channel block (SSB); and the signal of the neighboring cell is an SSB.

[0110] In one embodiment, the transceiver is further configured to receive system information from the BS, where the system information includes a first threshold for the first signal and a second threshold for the second signal.

[0111] In one embodiment, when initiating the measurement operation on the second signal of the serving cell, the processor is further configured to: perform the measurement operation on the first signal and the second signal of the serving cell; or perform the measurement operation on the second signal of the serving cell.

[0112] In one embodiment, the transceiver is further configured to receive system information including a third threshold; and when the measurement result of the second signal of the serving cell meets the third threshold, the processor is further configured to switch from the measurement operation of the second signal of the serving cell to the measurement operation of the first signal of the serving cell.

[0113] In one embodiment, the transceiver is further configured to receive system information from the BS, where the system information includes a first timer and a second timer for the measurement operation.

[0114] In one embodiment, the processor is further configured to: perform a measurement operation on a first signal of the serving cell until a first timer expires; and initiate a measurement operation on a second signal of the serving cell after the first timer expires.

[0115] In one embodiment, the processor is further configured to: perform a measurement operation on the second signal of the serving cell until a second timer expires; and initiate a measurement operation on the first signal of the serving cell after the second timer expires.

[0116] In one embodiment, a method for a user equipment (UE) in a wireless communication system includes: receiving a first signal and a second signal from a base station (BS) of a serving cell; performing a measurement operation on the first signal of the serving cell; and determining whether a measurement result of the first signal satisfies a first threshold; skipping the measurement operation on the second signal of the serving cell based on determining that the measurement result of the first signal satisfies the first threshold; and performing a measurement operation on the second signal of the serving cell based on determining that the measurement result of the first signal does not satisfy the first threshold; determining whether the measurement result of the second signal satisfies a second threshold; and skipping the measurement operation on a signal of a neighboring cell based on determining that the measurement result of the second signal of the serving cell satisfies the second threshold.

[0117] In one embodiment, wherein: the first signal of the serving cell is a low power wake-up signal (LP-WUS); the second signal of the serving cell is a synchronization signal / physical broadcast channel block (SSB); and the signal of the neighboring cell is an SSB.

[0118] In one embodiment, the method further includes: receiving system information from a BS, the system information including a first threshold for the first signal and a second threshold for the second signal.

[0119] In one embodiment, the method further includes: when initiating the measurement operation on the second signal of the serving cell, performing the measurement operation on the first signal and the second signal of the serving cell, or performing the measurement operation on the second signal of the serving cell.

[0120] In one embodiment, the method further includes: receiving system information including a third threshold, and switching from measuring the second signal of the serving cell to measuring the first signal of the serving cell when the measurement result of the second signal of the serving cell meets the third threshold.

[0121] In one embodiment, the further step includes: receiving system information from the BS, where the system information includes a first timer and a second timer for the measurement operation.

[0122] In one embodiment, the method further includes: performing a measurement operation on a first signal of the serving cell until a first timer expires; and initiating a measurement operation on a second signal of the serving cell after the first timer expires.

[0123] In one embodiment, the method further includes: performing a measurement operation on the second signal of the serving cell until a second timer expires; and initiating a measurement operation on the first signal of the serving cell after the second timer expires.

[0124] In one embodiment, a base station (BS) in a wireless communication system includes: a processor; and a transceiver operably coupled to the processor, the transceiver configured to send a first signal and a second signal to a user equipment (UE), wherein: a measurement operation of a first signal of a serving cell of the BS is performed, whether a measurement result of the first signal satisfies a first threshold is determined, based on the determination that the measurement result of the first signal satisfies the first threshold, a measurement operation of a second signal of the serving cell is skipped, and based on a determination that the measurement result of the first signal does not satisfy the first threshold, a measurement operation of the second signal of the serving cell is performed, whether the measurement result of the second signal satisfies a second threshold is determined, and based on the determination that the measurement result of the second signal of the serving cell satisfies the second threshold, a measurement operation of a signal of a neighboring cell is skipped.

[0125] In one embodiment, wherein: the first signal of the serving cell is a low power wake-up signal (LP-WUS); and the second signal of the serving cell is a synchronization signal / physical broadcast channel block (SSB).

[0126] In one embodiment, the signal of the neighboring cell is LP-WUS.

[0127] In one embodiment, the transceiver is further configured to send system information to the UE, the system information including at least one of the following: a first threshold for the first signal and a second threshold for the second signal, a third threshold, and a first timer and a second timer for measurement operations.

[0128] Figure 9 The structure of a UE according to an embodiment of the present disclosure is shown.

[0129] like Figure 9 As shown, the UE according to the embodiment may include a transceiver 910, a memory 920, and a processor 930. The transceiver 910, the memory 920, and the processor 930 of the UE may operate according to the communication method of the UE described above. However, the components of the UE are not limited thereto. For example, the UE may include more or fewer components than the above components. In addition, the processor 930, the transceiver 910, and the memory 920 may be implemented as a single chip. In addition, the processor 930 may include at least one processor. In addition, Figure 9 The UEs correspond to Figure 1 UEs 111, 112, 113, 114, 115, and 116.

[0130] The transceiver 910 is collectively referred to as a UE receiver and a UE transmitter, and can transmit and receive signals to and from a base station or a network entity. The signals transmitted to and received from the base station or network entity may include control information and data. The transceiver 910 may include an RF transmitter for up-converting and amplifying the frequency of transmitted signals, and an RF receiver for amplifying, reducing noise, and down-converting the frequency of received signals. However, this is merely an example of the transceiver 910, and the components of the transceiver 910 are not limited to an RF transmitter and an RF receiver.

[0131] In addition, the transceiver 910 may receive a signal through a wireless channel and output it to the processor 930 , and transmit a signal output from the processor 930 through a wireless channel.

[0132] The memory 920 may store programs and data required for the UE to operate. In addition, the memory 920 may store control information or data included in signals obtained by the UE. The memory 920 may be a storage medium such as a read-only memory (ROM), a random access memory (RAM), a hard disk, a CD-ROM, a DVD, or a combination of storage media.

[0133] The processor 930 may control a series of processes so that the UE operates as described above. For example, the transceiver 910 may receive a data signal including a control signal sent by a base station or a network entity, and the processor 930 may determine a result of receiving the control signal and the data signal sent by the base station or the network entity.

[0134] Figure 10 The structure of a base station according to an embodiment of the present disclosure is shown.

[0135] like Figure 10 As shown, the base station according to the embodiment may include a transceiver 1010, a memory 1020, and a processor 1030. The transceiver 1010, the memory 1020, and the processor 1030 of the base station may operate according to the communication method of the above-mentioned base station. However, the components of the base station are not limited thereto. For example, the base station may include more or fewer components than the above-mentioned components. In addition, the processor 1030, the transceiver 1010, and the memory 1020 may be implemented as a single chip. In addition, the processor 1030 may include at least one processor. In addition, Figure 10 The base station corresponds to a base station (eg, Figure 1 BS 101, 102, 103).

[0136] The transceiver 1010 is collectively referred to as a base station receiver and a base station transmitter, and can transmit and receive signals to and from a terminal (UE) or a network entity. Signals transmitted to and received from a terminal or a network entity may include control information and data. The transceiver 1010 may include an RF transmitter for up-converting and amplifying the frequency of transmitted signals, and an RF receiver for amplifying, reducing noise, and down-converting the frequency of received signals. However, this is merely an example of the transceiver 1010, and the components of the transceiver 1010 are not limited to an RF transmitter and an RF receiver.

[0137] In addition, the transceiver 1010 may receive a signal through a wireless channel and output it to the processor 1030 , and transmit a signal output from the processor 1030 through a wireless channel.

[0138] The memory 1020 may store programs and data required for the base station to operate. In addition, the memory 1020 may store control information or data included in signals received by the base station. The memory 1020 may be a storage medium such as a read-only memory (ROM), a random access memory (RAM), a hard disk, a CD-ROM, a DVD, or a combination of storage media.

[0139] The processor 1030 may control a series of processes so that the base station operates as described above. For example, the transceiver 1010 may receive a data signal including a control signal transmitted by a terminal, and the processor 1030 may determine a result of receiving the control signal and the data signal transmitted by the terminal.

[0140] The above flowcharts illustrate exemplary methods that can be implemented according to the principles of the present disclosure, and various modifications can be made to the methods shown in the flowcharts herein. For example, although shown as a series of steps, the individual steps in each figure can overlap, occur in parallel, occur in a different order, or occur multiple times. In another example, a step can be omitted or replaced by another step.

[0141] Although the present disclosure has been described using exemplary embodiments, various changes and modifications may be suggested to those skilled in the art. The present disclosure is intended to encompass such changes and modifications as fall within the scope of the appended claims. Nothing in this application should be construed as implying that any particular element, step, or function is essential to be included within the scope of the claims. The scope of a patented subject matter is defined by the claims.

Claims

1. A user equipment (UE) in a wireless communication system, the UE comprising: a transceiver configured to receive a first signal and a second signal from a base station BS of a serving cell, and a processor, operatively coupled to the transceiver, configured to: performing a measurement operation on the first signal of the serving cell, determining whether a measurement result of the first signal satisfies a first threshold, skipping the measurement operation of the second signal of the serving cell based on determining that the measurement result of the first signal meets the first threshold, and Based on determining that the measurement result of the first signal does not meet the first threshold: performing a measurement operation on the second signal of the serving cell, determining whether the measurement result of the second signal satisfies a second threshold, and Based on determining that the measurement result of the second signal of the serving cell meets the second threshold, the measurement operation of the signal of the neighboring cell is skipped.

2. The UE according to claim 1, wherein: The first signal of the serving cell is a low power wake-up signal LP-WUS; The second signal of the serving cell is a synchronization signal / physical broadcast channel block SSB; and The signal of the adjacent cell is SSB.

3. The UE according to claim 1, wherein: The transceiver is further configured to receive system information from the BS, the system information including the first threshold for the first signal and the second threshold for the second signal.

4. The UE according to claim 1, wherein: When initiating a measurement operation on the second signal of the serving cell, the processor is further configured to: performing a measurement operation on the first signal and the second signal of the serving cell; or A measurement operation is performed on the second signal of the serving cell.

5. The UE according to claim 1, wherein: The transceiver is further configured to: receive system information including a third threshold; and When the measurement result of the second signal of the serving cell meets the third threshold, the processor is further configured to: switch from the measurement operation of the second signal of the serving cell to the measurement operation of the first signal of the serving cell. The UE according to claim 1 , wherein: The transceiver is further configured to receive system information from the BS, the system information including a first timer and a second timer for the measurement operation.

7. The UE according to claim 6, wherein: The processor is further configured to: performing a measurement operation on the first signal of the serving cell until the first timer expires; and After the first timer expires, a measurement operation of the second signal of the serving cell is initiated.

8. The UE according to claim 6, wherein: The processor is further configured to: performing a measurement operation on the second signal of the serving cell until the second timer expires; and After the second timer expires, a measurement operation on the first signal of the serving cell is initiated.

9. A method for a user equipment (UE) in a wireless communication system, the method comprising: receiving a first signal and a second signal from a base station BS of a serving cell; performing a measurement operation on the first signal of the serving cell; as well as Determining whether a measurement result of the first signal meets a first threshold: skipping the measurement operation of the second signal of the serving cell based on determining that the measurement result of the first signal meets the first threshold, and Based on determining that the measurement result of the first signal does not meet the first threshold: performing a measurement operation on the second signal of the serving cell, determining whether the measurement result of the second signal satisfies a second threshold, and Based on determining that the measurement result of the second signal of the serving cell meets the second threshold, the measurement operation of the signal of the neighboring cell is skipped.

10. The method according to claim 9, wherein: The first signal of the serving cell is a low power wake-up signal LP-WUS; The second signal of the serving cell is a synchronization signal / physical broadcast channel block SSB; and The signal of the adjacent cell is SSB.

11. A base station (BS) in a wireless communication system, the BS comprising: processor; as well as a transceiver, operatively coupled to the processor, configured to transmit a first signal and a second signal to a user equipment UE, in: A measurement operation of the first signal of a serving cell including the BS is performed, It is determined whether the measurement result of the first signal meets a first threshold, Based on a determination that the measurement result of the first signal satisfies the first threshold, a measurement operation on the second signal of the serving cell is skipped, and Based on a determination that the measurement result of the first signal does not satisfy the first threshold: A measurement operation of the second signal of the serving cell is performed, It is determined whether the measurement result of the second signal meets a second threshold, and Based on a determination that the measurement result of the second signal of the serving cell satisfies the second threshold, a measurement operation on a signal of a neighboring cell is skipped.

12. The BS according to claim 11, wherein: The first signal of the serving cell is a low power wake-up signal LP-WUS; and The second signal of the serving cell is a synchronization signal / physical broadcast channel block SSB.

13. The base station according to claim 11, wherein: The signal of the neighboring cell is LP-WUS.

14. The BS according to claim 11, wherein: The transceiver is further configured to: send system information to the UE, where the system information includes at least one of the following: the first threshold for the first signal and the second threshold for the second signal; a third threshold; and A first timer and a second timer are used for the measuring operation.

15. A method performed by a base station (BS) in a wireless communication system, the method comprising: sending a first signal and a second signal to a user equipment UE, in: A measurement operation of the first signal of a serving cell including the BS is performed, It is determined whether the measurement result of the first signal meets a first threshold, Based on a determination that the measurement result of the first signal satisfies the first threshold, a measurement operation on the second signal of the serving cell is skipped, and Based on a determination that the measurement result of the first signal does not satisfy the first threshold: A measurement operation of the second signal of the serving cell is performed, It is determined whether the measurement result of the second signal meets a second threshold, and Based on a determination that the measurement result of the second signal of the serving cell satisfies the second threshold, a measurement operation on a signal of a neighboring cell is skipped.

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