Method and apparatus in wireless communication system

Abstract

Disclosed are a method and apparatus in a wireless communication system, the method comprising: transmitting information related to a first frequency band listening for a paging occasion; receiving first configuration information related to monitoring of a first signal for wakeup, wherein the first configuration information comprises information related to a first frequency band for monitoring a paging occasion and a second frequency band for monitoring the first signal associated with the first frequency band for monitoring the paging occasion; determining a second frequency band for monitoring the first signal based on the first configuration information; and monitoring the first signal based on the determined second frequency band for monitoring the first signal.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and more specifically, to a method and apparatus in a wireless communication system. Background Technology

[0002] Given the successive generations of wireless communication development, these technologies have primarily been developed for human-oriented services such as voice calls, multimedia services, and data services. With the commercialization of 5th-generation (5G) communication systems, the number of connected devices is expected to grow exponentially. These will increasingly connect to communication networks. Examples of the Internet of Things (IoT) can include vehicles, robots, drones, home appliances, displays, smart sensors connected to various infrastructures, construction machinery, and factory equipment. Mobile devices are expected to evolve in various forms, such as augmented reality glasses, virtual reality headsets, and holographic devices. Efforts are underway to develop improved 6G communication systems to provide a wide range of services by connecting hundreds of billions of devices and things in the sixth-generation (6G) era.

[0003] The 6G communication system, expected to be commercially available around 2030, will significantly improve upon existing 5G communication systems in all aspects. Its peak speed will reach at least 50 Gbit / s, user experience speed will reach at least 300 Mbit / s, air interface latency will be less than 1 ms, and air interface reliability will reach 10^(-5). In addition to these basic communication indicators, the 6G communication system will also possess sensing capabilities, AI-related capabilities, and better security, interoperability, and sustainability.

[0004] To achieve the aforementioned performance indicators for 6G communication systems, more advanced air interface and network technologies are needed. Currently, the evolution of extreme multiple input multiple output (MIMO) is being considered, including the use of very large-scale antenna arrays, the development and evolution of distributed antenna systems, and the design of MIMO air interface algorithms assisted by artificial intelligence (AI). This technology can achieve higher spectral efficiency, greater coverage, and more precise positioning and sensing capabilities. Furthermore, technologies that contribute to improving high-frequency coverage, including metamaterial-based lenses and antennas, novel antenna architectures, and reconfigurable intelligence surfaces (RIS), also require further evolution and development.

[0005] To meet the new functionalities added to 6G communication systems, it is necessary to develop new technologies in areas such as network energy saving, air interface security, and network security, while also studying the feasibility of converged technologies such as integrated communication and sensing.

[0006] In addition, to improve spectrum efficiency and overall network performance, the following technologies have been developed for 6G communication systems: full-duplex technology to enable uplink and downlink transmissions to use the same frequency resources simultaneously; network technologies that utilize satellites, high-altitude platform stations (HAPS), etc., in a comprehensive manner; improved network architecture to support mobile base stations, etc., and to enable network operation optimization and automation; dynamic spectrum sharing technology based on spectrum usage prediction and conflict avoidance; the use of artificial intelligence (AI) in wireless communication to improve overall network operation by utilizing AI from the design phase of 6G development and internalizing end-to-end AI support functions; and next-generation distributed computing technologies that overcome the computing power limitations of user equipment (UE) by leveraging ultra-high-performance communication and computing resources (such as mobile edge computing (MEC), cloud, etc.) achievable on the network. Furthermore, efforts are continuing to enhance connectivity between devices, optimize networks, promote the software-defined networking of network entities, and increase the openness of wireless communications by designing new protocols to be used in 6G communication systems, developing mechanisms for achieving hardware-based secure environments and secure data use, and developing technologies for maintaining privacy.

[0007] The research and development of 6G communication systems, encompassing hyper-connectivity for both person-to-machine (P2M) and machine-to-machine (M2M) interactions, is expected to deliver the next wave of hyper-connected experiences. Specifically, services such as truly immersive extended reality (XR), high-fidelity mobile holograms, and digital replicas are anticipated to be provided through 6G communication systems. Furthermore, services such as remote surgery for enhanced security and reliability, industrial automation, and emergency response will be available via 6G communication systems, enabling the technology to be applied across a wide range of sectors including industry, healthcare, automotive, and home appliances. Summary of the Invention

[0008] According to embodiments of this disclosure, a method performed by a user equipment (UE) in a wireless communication system is provided, comprising: transmitting information related to a first frequency band for listening to a paging timing; receiving first configuration information related to listening to a first signal for wake-up, wherein the first configuration information includes information related to the first frequency band for listening to the paging timing and a second frequency band for listening to the first signal associated with the first frequency band for listening to the paging timing; determining the second frequency band for listening to the first signal based on the first configuration information; and listening to the first signal based on the determined second frequency band for listening to the first signal.

[0009] In some implementations, the first configuration information is received in system information and / or Radio Resource Control (RRC) messages.

[0010] In some implementations, the second frequency band for monitoring the first signal is associated with a plurality of first frequency bands for monitoring the paging timing.

[0011] In some implementations, the method further includes: if the UE reselects the first frequency band for listening to the paging timing, then it does not listen to the first signal, and periodically listens to the paging timing and / or paging early indication.

[0012] In some implementations, the method further includes: if the UE receives a message confirming the reselection of the first frequency band for listening to the paging timing, then after a first time interval, applying the third frequency band for listening to the paging timing.

[0013] In some implementations, the method further includes, if the UE receives a message confirming the reselection of the first frequency band for listening to the paging timing, performing at least one of the following: after a second time interval, listening to the paging timing associated with the first signal on the third frequency band for listening to the paging timing; after a condition for listening to the first signal is met, listening to the first signal associated with the paging frame where the paging timing is located, and / or not periodically listening to the paging timing, wherein the condition includes a measurement value of the second signal of the serving cell where the UE is located being greater than a threshold value; and before a condition for listening to the first signal is met, not listening to the first signal associated with the paging frame where the paging timing is located.

[0014] In some implementations, the method further includes: if, after the UE reselects the first frequency band for listening to the paging opportunity, there is no paging opportunity associated with the first signal within a paging cycle satisfying a second time interval, then performing at least one of the following: listening to a paging opportunity associated with the first signal in the next paging cycle; after satisfying the condition for listening to the first signal, listening to a first signal associated with the paging frame where the paging opportunity is located in the next paging cycle, wherein the condition includes a measurement value of a second signal of the serving cell where the UE is located being greater than a threshold value; and before satisfying the condition for listening to the first signal, not listening to the first signal associated with the paging frame where the paging opportunity is located in the next paging cycle.

[0015] In some implementations, the method further includes: determining the temporal location of the first signal timing based on the start position of the paging frame associated with the paging timing on the first frequency band where the paging timing is monitored, and at least one offset.

[0016] In some implementations, the method further includes: if the subgroup to which the UE is located is associated with a first signal timing resource after the time-domain location of the first signal timing, then not listening to the first signal and / or the paging timing associated with the first signal, and / or periodically listening to the paging timing.

[0017] In some implementations, the method further includes: if the subgroup to which the UE is located is associated with a first signal timing resource following the time-domain location of the first signal timing, then listening to the first signal and / or the next paging timing associated with the first signal, and / or not listening to the first signal associated with the paging frame where the next paging timing is located.

[0018] In some implementations, the first signal is used to indicate whether a UE associated with a first signal group is listening to a paging opportunity, and the first signal group is associated with all paging opportunities associated with the same radio frame number index on a first frequency band that is associated with all paging opportunities that are listening to the first signal on the second frequency band.

[0019] In some implementations, the first signal group is associated with all paging times associated with a paging frame on a first frequency band associated with a paging time associated with a second frequency band that listens to the first signal.

[0020] In some embodiments, the method further includes determining the index of the first signal subgroup associated with the UE based on the UE index, the number of paging frames in the paging period, and / or the number of first signal subgroups associated with the UE in the first signal group.

[0021] In some implementations, the method further includes: determining the index of the first signal subgroup set associated with the UE based on the UE index, the number of paging frames in the paging period, and / or the number of first signal subgroup sets associated with the UE in the first signal group.

[0022] In some embodiments, the method further includes receiving second configuration information related to the timing of the first signal and / or third configuration information related to the timing of the first signal listening.

[0023] In some embodiments, the first signal timing includes multiple first signal listening timings, and the method further includes: listening to the first signal within K*N consecutive first signal listening timings or K non-consecutive first signal listening timings, where K is the number of first signal listening timings that transmit the same and / or different first signal information bits in the same beam direction, and N is the number of beams that receive the first signal.

[0024] In some implementations, the second configuration information includes at least one of the following: one or more minimum time intervals from the end or start position of one or more first signal timings to the start position of a radio frame number associated with the first signal timing, and the duration of the first signal.

[0025] In some implementations, the third configuration information includes at least one of the following: the time interval between the first first signal listening opportunity and the start or end position of the first signal listening opportunity, the time interval between two adjacent first signal listening opportunities, the duration of the first signal listening opportunity, the time interval between the first first signal listening opportunity and the start or end position of the first signal listening opportunity in each UE subgroup set, and the number or duration of the first signal listening opportunities associated with each UE subgroup set.

[0026] In some implementations, the first signal is further used to indicate whether a UE associated with a first signal group set is listening for a paging opportunity, and the method further includes: determining one or more first signal opportunities based on the first signal group or the first signal group set.

[0027] In some implementations, the method further includes: listening for one or more first signal timings that are greater than the wake-up delay or for a first signal timing within the most recent first signal timing that satisfies the wake-up delay, until the first signal is detected and / or the first signal indicates that the subgroup to which the UE belongs has been woken up.

[0028] According to embodiments of this disclosure, a method performed by a base station in a wireless communication system is provided, comprising: receiving information related to a first frequency band for listening to a paging timing; and sending first configuration information related to listening to a first signal for wake-up, wherein the first configuration information includes information related to the first frequency band for listening to the paging timing and information related to a second frequency band for listening to the first signal associated with the first frequency band for listening to the paging timing, wherein the second frequency band for listening to the first signal is determined based on the first configuration information, and the first signal is listened to based on the determined second frequency band for listening to the first signal.

[0029] In some implementations, the first configuration information is sent in system information and / or Radio Resource Control (RRC) messages.

[0030] In some implementations, the second frequency band for monitoring the first signal is associated with a plurality of first frequency bands for monitoring the paging timing.

[0031] In some implementations, if the first frequency band for monitoring the paging timing is reselected, the first signal is not monitored, and the paging timing and / or paging early indication is monitored periodically.

[0032] In some implementations, if a message confirming the reselection of the first frequency band for listening to the paging timing is sent, then after a first time interval, a third frequency band for listening to the paging timing is applied.

[0033] In some implementations, if a message confirming the reselection of the first frequency band for listening to the paging timing is sent, at least one of the following is performed: after a second time interval, the paging timing associated with the first signal is listened to on the third frequency band for listening to the paging timing; after a condition for listening to the first signal is met, the first signal associated with the paging frame in which the paging timing is located is listened to, and / or the paging timing is not periodically listened to, wherein the condition includes a measurement value of the second signal of the serving cell in which the UE is located being greater than a threshold value; before the condition for listening to the first signal is met, the first signal associated with the paging frame in which the paging timing is located is not listened to.

[0034] In some implementations, if, after the first frequency band monitoring the paging opportunity is reselected, there is no paging opportunity associated with the first signal within a paging cycle satisfying the second time interval, then at least one of the following is performed: the paging opportunity associated with the first signal is monitored in the next paging cycle; after the condition for monitoring the first signal is met, the first signal associated with the paging frame containing the paging opportunity in the next paging cycle is monitored, wherein the condition includes a measurement value of the second signal of the serving cell where the UE is located being greater than a threshold value; before the condition for monitoring the first signal is met, the first signal associated with the paging frame containing the paging opportunity in the next paging cycle is not monitored.

[0035] In some implementations, the temporal location of the first signal timing is determined based on the start position of the paging frame associated with the paging timing of the UE on the first frequency band where the paging timing is monitored, and at least one offset.

[0036] In some implementations, if the subgroup to which the UE is located is associated with a first signal timing resource after the time-domain location of the first signal timing, then the first signal and / or the paging timing associated with the first signal are not monitored, and / or the paging timing is monitored periodically.

[0037] In some implementations, if the subgroup to which the UE is located is associated with a first signal timing resource following the time-domain location of the first signal timing, then the first signal and / or the next paging timing associated with the first signal are monitored, and / or the first signal associated with the paging frame to which the next paging timing is located is not monitored.

[0038] In some implementations, the first signal is used to indicate whether a UE associated with a first signal group is listening to a paging opportunity, and the first signal group is associated with all paging opportunities associated with the same radio frame number index on a first frequency band that is associated with all paging opportunities that are listening to the first signal on the second frequency band.

[0039] In some implementations, the first signal group is associated with all paging times associated with a paging frame on a first frequency band associated with a paging time associated with a second frequency band that listens to the first signal.

[0040] In some implementations, the index of the first signal subgroup associated with the UE is determined based on the UE index, the number of paging frames in the paging cycle, and / or the number of first signal subgroups associated with the UE in the first signal group.

[0041] In some implementations, the index of the first signal subgroup set associated with the UE is determined based on the UE index, the number of paging frames in the paging cycle, and / or the number of first signal subgroup sets associated with the UE in the first signal group.

[0042] In some embodiments, the method further includes: sending second configuration information related to the timing of the first signal and / or third configuration information related to the timing of the first signal listening.

[0043] In some implementations, the first signal timing includes multiple first signal listening timings, and the first signal is listened to within K*N consecutive first signal listening timings or K non-consecutive first signal listening timings, where K is the number of first signal listening timings that transmit the same and / or different first signal information bits in the same beam direction, and N is the number of beams that receive the first signal.

[0044] In some implementations, the second configuration information includes at least one of the following: one or more minimum time intervals from the end or start position of one or more first signal timings to the start position of a radio frame number associated with the first signal timing, and the duration of the first signal.

[0045] In some implementations, the third configuration information includes at least one of the following: the first first signal listening timing and the time interval between the start or end position of the first signal timing.

[0046] The time interval between two adjacent first signal listening opportunities, the duration of the first signal listening opportunity, the time interval between the first first signal listening opportunity and the start or end position of the first signal listening opportunity in each UE subgroup set, and the number or duration of the first signal listening opportunities associated with each UE subgroup set.

[0047] In some implementations, the first signal is further used to indicate whether a UE associated with a first signal group set is listening for a paging opportunity, and one or more first signal opportunities are determined based on the first signal group or the first signal group set.

[0048] In some implementations, a first signal listening time within one or more first signal timings that are greater than the wake-up delay or within the most recent first signal timing that satisfies the wake-up delay is monitored until the first signal is detected and / or the first signal indicates that the subgroup to which the UE belongs has been woken up.

[0049] According to embodiments of this disclosure, a user equipment (UE) in a wireless communication system is provided, including: a transceiver; and a controller coupled to the transceiver and configured to perform the aforementioned method.

[0050] According to embodiments of this disclosure, a base station in a wireless communication system is provided, comprising: a transceiver; and a controller coupled to the transceiver and configured to perform the aforementioned method. Attached Figure Description

[0051] To gain a more complete understanding of this disclosure and its advantages, reference is now made to the following description in conjunction with the accompanying drawings, wherein like reference numerals denote like parts:

[0052] Figure 1 An example wireless network according to an embodiment of the present disclosure is shown;

[0053] Figure 2 An example base station according to an embodiment of the present disclosure is shown;

[0054] Figure 3 An example user equipment according to an embodiment of the present disclosure is shown;

[0055] Figure 4 A flowchart illustrating a method performed by a UE according to an embodiment of the present disclosure is shown;

[0056] Figure 5 A flowchart illustrating a method performed by a UE according to an embodiment of the present disclosure is shown;

[0057] Figure 6 A diagram illustrating the association between frequency bands for listening paging timing and wake-up signal groups according to embodiments of the present disclosure is shown.

[0058] Figure 7 A diagram illustrating the association between the frequency band of the listening paging timing and the wake-up signal group according to an embodiment of the present disclosure is shown;

[0059] Figure 8 A block diagram of a UE according to an embodiment of the present disclosure is shown; and

[0060] Figure 9 A block diagram of a base station according to an embodiment of the present disclosure is shown. Detailed Implementation

[0061] Before proceeding with the following detailed description, it may be advantageous to define certain words and phrases used throughout the patent literature. The term “connection” and its derivatives refer to any direct or indirect communication between two or more elements, regardless of whether those elements are physically in contact with each other. The terms “transmit,” “receive,” and “transmit,” and their derivatives encompass both direct and indirect communication. The terms “comprise” and “include,” and their derivatives mean inclusion without limitation. The term “or” is concurrent, meaning both and / or. The phrase “associated with,” and its derivatives mean including, being included in, interconnected with, containing, being contained within, connected to or connected with, coupled to or coupled with, able to communicate with, cooperate with, intertwine, juxtapose, proximate, bound to or bound with, having, possessing attributes, 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 may be implemented in hardware or in a combination of hardware and software and / or firmware. The functionality associated with any particular controller, whether local or remote, can be centralized or distributed. The phrase "at least one" when used to list items means that different combinations of one or more of the listed items can be used, and it is possible that only one item in the list is needed. 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 only A, only B, and only C. Similarly, the term "set" means one or more. Therefore, a set of items can be a single item or a set of two or more items.

[0062] Furthermore, the various functions described below can be implemented or supported by one or more computer programs, each function being formed by 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, instruction sets, procedures, functions, objects, classes, instances, associated data, or portions thereof suitable for implementation in appropriate 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 accessible by a computer, such as read-only memory (ROM), random access memory (RAM), hard disk drive, compact disc (CD), digital video disc (DVD), or any other type of storage. "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 in which data can be permanently stored and media such as rewritable optical discs or erasable memory devices in which data can be stored and later rewritten.

[0063] Definitions for certain other words and phrases are provided throughout this patent document. Those skilled in the art will understand that, in many, if not the most, instances, such definitions apply to both prior and future use of the words and phrases defined in this way.

[0064] The figures and various embodiments included herein, used to illustrate the principles of this disclosure, are merely illustrative and should not be construed in any way as limiting the scope of this disclosure. Furthermore, those skilled in the art will understand that the principles of this disclosure can be implemented in any suitably arranged wireless communication system.

[0065] The following Figures 1 to 3 Various embodiments of this disclosure implemented in wireless communication systems are described. Figures 1 to 3 The description does not imply any physical or architectural limitations on the ways in which different embodiments can be implemented. Different embodiments of this disclosure can be implemented in any suitably arranged communication system.

[0066] Figure 1 An example wireless network according to an embodiment of this disclosure is shown. Figure 1 The embodiments of the wireless network shown are for illustrative purposes only. Other embodiments of the wireless network 100 may be used without departing from the scope of this disclosure.

[0067] like Figure 1As shown, the wireless network includes a base station (next generation nodeB, gNB or gNodeB) 101, 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, Internet Protocol (IP) networks, or other data networks.

[0068] gNB 102 provides wireless broadband access to network 130 to multiple first user equipments (UEs) within coverage area 120 of gNB 102. The multiple first UEs include UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R1); UE 115, which may be located in a second residence (R2); and UE 116, which may be a mobile device (M) such as a cellular phone, wireless laptop, or wireless personal digital assistant (PDA). gNB 103 provides wireless broadband access to network 130 to multiple second UEs within coverage area 125 of gNB 103. The multiple second UEs include UE 115 and UE 116, and subscriber stations (SS, such as UEs) 117, 118, and 119. In some embodiments, one or more of gNBs 101 and 103 may communicate with each other and UEs 111 and 116 using existing wireless communication technologies, and one or more of UEs 111 and 119 may communicate directly with each other (e.g., UEs 117 and 119) using other existing or proposed wireless communication technologies.

[0069] Depending on the network type, the term "base station" or "BS" can refer to any component (or set of components) configured to provide wireless access to a network, such as a transmit point (TP), transmit-receive point (TRP), enhanced (or "evolved") base station (eNodeB or eNB), 5G base station (gNB), macro cell, femtocell, wireless fidelity (WiFi) access point (AP), or other wireless-capable devices. A base station can provide wireless access according to one or more wireless communication protocols, such as 3GPP 5G new radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE A), high-speed packet access (HSPA), WiFi 802.11a / b / g / n / ac, etc. For convenience, various names for base station type devices and functions may be used interchangeably in this patent document to refer to network infrastructure components that provide wireless access to remote terminals. Furthermore, depending on the network type, the term "User Equipment" (UE) can refer to any component such as a mobile station (MS), user station (SS), remote terminal, wireless terminal, receiving point, or user device. For convenience, various names for user equipment type devices and functions may be used interchangeably in this patent document to refer to remote wireless devices that wirelessly access the BS regardless of whether the UE is a mobile device (such as a mobile phone or smartphone) or is generally considered a fixed device (such as a desktop computer or vending machine).

[0070] The dashed lines indicate the approximate extent of coverage areas 120 and 125, which are shown as roughly circular for illustrative and explanatory purposes only. It should be clearly understood that coverage areas such as 120 and 125 associated with the gNB 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.

[0071] As described in more detail below, one or more of UEs 111 and 119 include circuitry, programming, or a combination thereof. In some embodiments, one or more of gNBs 101 and 103 include circuitry, programming, or a combination thereof.

[0072] although Figure 1 An example of a wireless network is shown, but more can be found on... Figure 1Various modifications can be made. For example, wireless network 100 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 or 103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. Additionally, gNBs 101, 102, and / or 103 can provide access to other or additional external networks, such as external telephone networks or other types of data networks.

[0073] Figure 2 An example base station according to an embodiment of the present disclosure is shown. Figure 2 The embodiment of gNB 102 shown is for illustrative purposes only, and Figure 1 gNBs 101 and 103 can have the same or similar configurations. However, gNBs come in a variety of configurations, and Figure 2 This disclosure is not intended to limit the scope to any particular implementation of gNB.

[0074] like Figure 2 As shown, gNB 102 includes multiple antennas 200a 200n, multiple radio frequency (RF) transceivers 201a 201n, transmit (TX) processing circuitry 203, and receive (RX) processing circuitry 204. gNB 102 also includes a controller / processor 205, a memory 206, and a backhaul or network interface 207.

[0075] RF transceivers 201a and 201n receive incoming RF signals, such as signals transmitted by the UE in network 100, from antennas 200a and 200n. RF transceivers 201a and 201n down-convert the incoming RF signals to generate intermediate frequency (IF) or baseband signals. The IF or baseband signal is sent to RX processing circuitry 204, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 204 sends the processed baseband signal to controller / processor 205 for further processing.

[0076] TX processing circuit 203 receives analog or digital data (such as voice data, web data, email, or interactive video game data) from controller / processor 205. TX processing circuit 203 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 201a and 201n receive the processed baseband or IF signal from TX processing circuit 203 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 201a and 201n.

[0077] The controller / processor 205 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 205 may control the reception of forward channel signals and the transmission of reverse channel signals by the RF transceivers 201a 201n, the RX processing circuit 204, and the TX processing circuit 203, according to known principles. The controller / processor 205 may also support additional functions, such as more advanced wireless communication capabilities.

[0078] For example, the controller / processor 205 can support beamforming or directional routing operations, where outgoing signals from multiple antennas 200a 200n are weighted differently to effectively redirect the outgoing signals in the desired direction. Any of a variety of other functions can be supported in the gNB 102 via the controller / processor 205.

[0079] The controller / processor 205 is also capable of executing programs and other processes located in the memory 206, such as the operating system (OS). The controller / processor 205 can move data into or out of the memory 206 as needed by the executing process.

[0080] The controller / processor 205 is also connected to a backhaul or network interface 207. The backhaul or network interface 207 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. Interface 207 can support communication via any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G, LTE, or LTE A), interface 207 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, interface 207 can allow the gNB 102 to communicate via a wired or wireless local area network or via a wired or wireless connection to a larger network (such as the Internet). Interface 207 includes any suitable structure that supports communication via wired or wireless connections such as Ethernet or RF transceivers.

[0081] Memory 206 is connected to controller / processor 205. A portion of memory 206 may include random access memory (RAM), and another portion of memory 206 may include flash memory or other read-only memory (ROM).

[0082] although Figure 2 An example of gNB 102 is shown, but it is possible to see more. Figure 2 Various changes can be made. For example, gNB 102 can include any number of Figure 2 Each component is shown in the diagram. As a specific example, an access point may include multiple interfaces 207, and the controller / processor 205 may support routing functionality to route data between different network addresses. As another specific example, although shown as a single instance of TX processing circuitry 203 and a single instance of RX processing circuitry 204, gNB102 may include multiple instances of each (such as one per RF transceiver). For example, Figure 2 The various components can be combined, further subdivided, or omitted, and additional components can be added as needed.

[0083] Figure 3 An example user equipment according to an embodiment of the present disclosure is shown. Figure 3 The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1 UEs 111, 115, 117, and 119 can have the same or similar configurations. However, UEs appear in multiple configurations, and Figure 3 This disclosure is not intended to limit the scope to any particular implementation of the UE.

[0084] like Figure 3 As shown, UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, a TX processing circuit 303, a microphone 304, and a receive (RX) processing circuit 305. UE 116 also includes a speaker 306, a controller or processor 307, an input / output (I / O) interface (IF) 308, an input device 309, a touchscreen display 310, and memory 311. Memory 311 includes an OS 312 and one or more applications 313.

[0085] RF transceiver 302 receives incoming RF signals transmitted by gNB of network 100 from antenna 301. RF transceiver 302 down-converts the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 305, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 305 sends the processed baseband signals to speaker 306 (e.g., for voice data) or processor 307 for further processing (e.g., for web browsing data).

[0086] TX processing circuit 303 receives analog or digital voice data from microphone 304 or other outgoing baseband data (such as web data, email, or interactive video game data) from processor 307. TX processing circuit 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceiver 302 receives the processed baseband or IF signal from TX processing circuit 303 and up-converts the baseband or IF signal into an RF signal transmitted via antenna 301.

[0087] Processor 307 may include one or more processors or other processing devices and executes OS 312 stored in memory 311 to control the overall operation of UE 116. For example, processor 307 may control the reception of forward channel signals and the transmission of reverse channel signals by RF transceiver 302, RX processing circuitry 305, and TX processing circuitry 303 according to known principles. In some embodiments, processor 307 includes at least one microprocessor or microcontroller.

[0088] Processor 307 is also capable of executing other processes and programs located in memory 311, such as processes for CSI reporting on the uplink channel. Processor 307 can move data into or out of memory 311 as needed for executing processes. In some embodiments, processor 307 is configured to execute application 313 based on OS 312 or in response to signals received from gNB or operator. Processor 307 is also coupled to I / O interface 308, which provides UE 116 with the ability to connect to other devices such as laptops and laptops. I / O interface 308 is the communication path between these accessories and processor 307.

[0089] The processor 307 is also connected to the touchscreen display 310. The user of the UE 116 can use the touchscreen display 310 to input data into the UE 116. The touchscreen display 310 can be a liquid crystal display, a light-emitting diode display, or other display capable of rendering text and / or at least limited graphics such as those from a website.

[0090] Memory 311 is connected to processor 307. A portion of memory 311 may include RAM, and another portion of memory 311 may include flash memory or other ROM.

[0091] although Figure 3 An example of UE 116 is shown, but it is possible to modify it. Figure 3 Make various changes. For example, Figure 3 The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, processor 307 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Moreover, although... Figure 3 The UE 116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0092] The text and accompanying drawings are provided by way of example only to aid the reader in understanding this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

[0093] The transmission links of a wireless communication system mainly include: the downlink communication link from the 5G New Radio (NR) gNB to the User Equipment (UE), the uplink communication link from the UE to the network, and the sidelink communication link from the UE to the UE.

[0094] In wireless communication systems, such as current wireless communication systems, a Low Power Wake Up Signal (LPWUS) is introduced to reduce power consumption on the terminal side. When the UE hears the wake-up signal and the wake-up signal indicates that the UE is listening for a paging opportunity (PO), the UE expects to listen for the associated PO. The UE's receiver contains two modules: a Main Radio (MR) module for receiving regular signals / channels transmitted by the base station, and a Low Power Wake Up Receiver (LPWUR) module for receiving the wake-up signal transmitted by the base station. A dedicated module is used to receive the wake-up signal because LPWUS is a waveform based on amplitude shift keying (ASK) modulation, which is based on the existing NR system's orthogonal frequency division multiplexing (OFDM) waveform. LPWUR can listen for the wake-up signal at extremely low power. Once the UE hears the wake-up signal and the wake-up signal indicates that the UE is listening for a PO, LPWUR can trigger the MR to switch from the dormant period to the active period to listen for the paging early indication (PEI) and / or the PO. Optionally, On-Off Keying (OOK) modulation is a special case of Amplitude Shift Keying (ASK) modulation. LPWUR includes two different types of receivers: OOK-based receivers and OFDM-based receivers. OOK-based receivers perform synchronization and RRM measurements based on a low-power synchronization signal (LP-SS), while OFDM-based receivers perform synchronization and RRM measurements based on the synchronization signal and a physical broadcast channel block (SSB).

[0095] Considering that deploying low-power wake-up signals on a fixed frequency band helps reduce the cost and power consumption of the low-power wake-up signal receiver module (LR), and that the LR has a wider coverage area when deployed in a lower frequency band, wireless communication systems can deploy low-power wake-up signals on a frequency band different from the frequency band where the UE listens for the paging request (PO). Therefore, how to listen for the low-power wake-up signal when the frequency band for listening for paging requests differs from the frequency band for listening for the low-power wake-up signal is a problem that urgently needs to be solved.

[0096] Specifically, this invention will introduce a method and apparatus for monitoring low-power wake-up signals. In this embodiment, a wake-up signal is used as an example, wherein the wake-up signal includes, but is not limited to, a low-power wake-up signal. The described method can also be used for monitoring, configuring, and transmitting other signals. Furthermore, the method of this invention can be applied to situations where a low-power wake-up signal triggers physical downlink control channel (PDCCH) monitoring in the Radio Resource Control (RRC) idle state and / or inactive state and / or connected state.

[0097] Figure 4 A flowchart of a method performed by a UE according to an embodiment of the present disclosure is shown.

[0098] refer to Figure 4 In step S401, the UE sends information related to a first frequency band for listening to paging timing. In step 402, the UE receives first configuration information related to listening to a first signal used for wake-up. Optionally, the first configuration information includes information related to the first frequency band for listening to paging timing and a second frequency band for listening to the first signal associated with the first frequency band for listening to paging timing. In step S403, the UE determines the second frequency band for listening to the first signal based on the first configuration information. In step S404, the UE listens to the first signal based on the determined second frequency band for listening to the first signal.

[0099] Figure 5 A flowchart illustrating a method performed by a UE according to an embodiment of the present disclosure is shown. Reference will be made below. Figure 5 Describes a method performed by a UE according to embodiments of this disclosure.

[0100] The following describes a method for the UE to determine the frequency domain location of the low-power wake-up signal listener.

[0101] In one embodiment, the UE reports a supported listening PO frequency band through its UE capabilities. Optionally, the frequency band of the listening PO can be a frequency band selected from X candidates, where X is an integer greater than 1. Optionally, the UE can report the frequency band of the supported listening PO before the RRC is released. If the UE reports the frequency band information of the supported listening PO, the UE determines the associated wake-up signal group based on the reported frequency band information. When the conditions for enabling wake-up signal listening are met, the UE listens for the wake-up signal at the wake-up signal timing (LPWUS Occasion, LO) corresponding to the associated wake-up signal group. These conditions include the reference signal received power (RSRP) and / or reference signal received quality (RSRQ) of the serving cell's SSB measured by MR being greater than a configured first threshold, and / or the RSRP and / or RSRQ of the serving cell's SSB or LP-SS measured by LR being greater than a configured second threshold. If the UE does not report the frequency band information of the supported listening PO, the UE does not enable wake-up signal listening. This operation takes into account that if the UE does not report supported frequency band information, since the network is unsure which frequency band the UE is listening to the PO, the network will send a wake-up signal on the wake-up signal group associated with each UE_ID. After sending the wake-up signal, the network will send a paging message on the paging frame associated with the wake-up signal group on each frequency band. Even if the UE does not support receiving paging messages on a certain frequency band, the network resource overhead is too high. In order to reduce the network resource overhead, if the UE does not report the frequency band of the supported PO, the UE does not enable wake-up signal listening, and the UE periodically listens to the PO and / or Paging Early Indication (PEI).

[0102] In one implementation, the UE can determine the association between the wake-up signal listening band and the listening PO band through pre-configuration or pre-definition. The pre-configuration method can be through system information such as SIB information broadcast. Optionally, the association can be a fixed association, where one wake-up signal listening band is associated with more than one fixed listening PO band. For example, as defined in Table 1, the UE can determine the associated wake-up signal listening band based on the UE's capabilities for a reported listening PO band. This method allows the UE to determine the wake-up signal listening band by using the supported listening PO bands, i.e., to determine the frequency domain location for listening to the wake-up signal. Furthermore, this method can reduce the resource overhead of the network sending paging messages across multiple bands.

[0103] Table 1 shows the relationship between the wake-up signal monitoring frequency band and the monitoring PO frequency band.

[0104]

[0105] In one implementation, if the UE reselects the frequency band for listening to the PO, the UE should report the request to update or reselect the frequency band for listening to the PO and / or information related to the updated or reselected frequency band for listening to the PO in the RRC recovery request message of MSG3 or the UL Small Data Transmission (SDT) message. The UE's plan to change the frequency band for listening to the PO may include, but is not limited to, situations where the UE has switched over or is temporarily camping at another base station. If the UE reselects the frequency band for listening to the PO, the UE does not expect to listen to wake-up signals; the UE periodically listens to the PO and / or PEI. This operation allows the UE to continue determining the frequency domain location for listening to wake-up signals based on the updated or reselected PO frequency band after changing the listening PO frequency band, enabling the network to send paging messages on the updated or reselected listening PO frequency band.

[0106] In one implementation, after the UE receives an acknowledgment message from MSG4 or DL ​​SDT confirming the update or reselection of the frequency band for listening to the PO and a time interval T1, the UE updates or reselects the frequency band for listening to the PO. The time interval T1 can be pre-configured or predefined. This approach allows UEs in the network to use the same time interval to determine the time unit for listening to the PO on the updated or reselected frequency band, facilitating network management of the UE.

[0107] In one implementation, after the UE receives an MSG4 or DL ​​SDT confirmation message for updating or reselecting the frequency band of the listening PO in time slot n of the frequency band before the update or reselection, the UE... And / or after the wake-up signal listening condition is met, the UE expects to listen to the wake-up signal corresponding to the paging frame of the associated PO, and / or the UE no longer periodically listens to the associated PO, and / or the UE does not expect to listen to the wake-up signal before the wake-up signal listening condition is met. If the UE updates or reselects the frequency band for listening to the PO, and there is no associated PO in the current paging period, the UE expects to listen to the associated PO in the next paging period, and / or after the wake-up signal listening condition is met, the UE expects to listen to the wake-up signal corresponding to the paging frame of the associated PO in the next paging period, and / or before the wake-up signal listening condition is met, the UE does not expect to listen to the wake-up signal corresponding to the paging frame of the associated PO in the next paging period. Time interval T2 includes, but is not limited to, radio frequency (RF) adjustment time. Wherein, μ is the subcarrier spacing configuration of MSG4 or DL ​​SDT carrying the confirmation message for updating or reselecting the frequency band for listening to the PO. This refers to the number of time slots contained in a subframe when the configured subcarrier spacing is μ. This method ensures that the UE has more flexibility, allowing UEs with faster frequency band switching capabilities to listen to the PO on the updated or reselected frequency band more quickly.

[0108] The following describes a method for the UE to determine the time-domain location of the low-power wake-up signal listener.

[0109] In one embodiment, the UE determines the end position of the LO by the start position of the associated paging frame and one or more configured offsets and / or RF adjustment time, wherein the offsets include, but are not limited to, low-power wake-up signal processing time, MR conversion time, and MR time-frequency synchronization time.

[0110] In one implementation, the offset also includes the RF adjustment time.

[0111] In one implementation, the RF adjustment time can be a predefined or preconfigured RF adjustment time. The UE needs to report the UE's RF adjustment time before the RRC is released so that the UE and the network have the same understanding of the end position of the LO.

[0112] In one implementation, the UE determines the end position of the Loop (LO) by adjusting the UE-specific RF timing. If the UE's subgroup is associated with a resource after the LO end position, the UE does not want to listen to the wake-up signal and / or does not want to listen to the PO (Program Point) associated with the wake-up signal, and / or the UE periodically listens to the PO. This operation is to avoid the UE listening to the wake-up signal on a resource after the LO end position and / or the wake-up signal instructing the UE to wake up but being unable to wake up to listen to the associated PO.

[0113] In one implementation, the UE determines the end position of the Loop (LO) using a UE-specific RF adjustment time. If the UE's subgroup is associated with a resource after the LO end position, the UE expects to listen for a wake-up signal and / or expects to listen for the next Point of Purchase (PO) associated with the wake-up signal, and / or the UE no longer listens for the first signal associated with the paging frame where the next paging opportunity occurs. This operation is applicable when the UE hears a wake-up signal after the LO end position and / or the wake-up signal instructs the UE to wake up, but the UE cannot be woken up to listen for the associated PO due to excessive wake-up delay. This method allows the UE to still listen for the wake-up signal, thus reducing the UE's power consumption.

[0114] The following describes a method for determining the association between a low-power wake-up signal group / subgroup / set of subgroups and the UE (in this application, " / " can be used interchangeably with "and / or").

[0115] In one embodiment, a wake-up signal group can be associated with all UEs associated with the same SFN index on the frequency band of all listening POs associated with the wake-up signal listening frequency band, as shown in Table 2. The SFN index contains at least one paging frame. The association between the wake-up signal group and the UE can be determined by the paging frame offset, paging period, and the number of POs contained in a paging period configured on each frequency band of all listening POs. For example, it can be determined by (SFN+PF_offset)mod T=(T div N)*(UE_ID mod N), where SFN is the SFN index value on each frequency band, PF_offset is the paging frame offset configured separately on each frequency band, T is the paging period configured separately on each frequency band, N is the number of POs contained in a paging period configured separately on each frequency band, and UE_ID is the UE-specific UE index calculated by the UE based on TMSI. Based on the association between the SFN index and UE_ID on each frequency band, UE indices with the same SFN index on all listening POs associated with the wake-up signal listening frequency band are associated with the same wake-up signal group. A wake-up signal group can be associated with one or more LOs. UEs belonging to the same wake-up signal group listen to the same one or more LOs. If the UE hears a wake-up signal and / or the wake-up signal instructs the UE to wake up, the UE listens to the POs associated with the one or more LOs within the paging frame on the supported or reported frequency bands. Figure 6 As shown. This operation mode allows the UEs associated with the wake-up signal group to change with the frequency band of the listening PO in the network, enabling more flexible subgrouping of UEs associated with the currently associated listening PO frequency band. This facilitates the use of fewer information bits in the wake-up signal to instruct the subgroup to wake up and reduces resource overhead.

[0116] Table 2. Correlation between the frequency band of the monitoring PO and the wake-up signal group

[0117]

[0118] In another embodiment, a wake-up signal group can be associated with all UEs associated with a single paging frame on a frequency band of a listening PO associated with the wake-up signal listening band. This operation method ensures that the UEs within the wake-up signal group do not change based on the presence or absence of other listening POs in the network, making operations on the wake-up signal group more convenient. The association between a wake-up signal group and UEs can be determined by the paging frame offset, paging period, and the number of POs contained within a paging period configured in the frequency band of the UE's listening PO, for example, by (SFN+PF_offset)mod T=(Tdiv N)*(UE_ID mod N). By using the association between the SFN index and UE_ID on the frequency band where the UE is located, UEs with the same SFN index on the frequency band where the UE is located are associated with the same wake-up signal group. UEs with the same SFN index corresponding to a paging frame in frequency bands associated with more than one listening PO of a wake-up signal listening band are associated with a set of wake-up signal groups. In a wake-up signal group set, the wake-up signal group index is determined by the association between the wake-up signal listening frequency band and the listening PO frequency band. The listening PO frequency bands are sorted from low to high according to the wake-up signal group index in ascending order, as shown in Table 3. A wake-up signal group set is associated with one or more LOs. If the UE listens to a wake-up signal and / or the wake-up signal indicates the wake-up signal group index to which the UE belongs, the UE listens to the PO associated within the paging frame of the one or more LOs on the supported or reported frequency bands, such as... Figure 7 As shown. Since the power consumption of UE listening to the wake-up signal is lower than that of listening to the PDCCH, this operation allows the UE to listen to the wake-up signal once in each paging cycle, and only listen to the PEI when the wake-up signal indicates that the UE is awake, to determine whether to listen to the associated PO. When not indicated to be awake, the UE does not need to listen to the PDCCH. Therefore, compared with PEI, the method can reduce the power consumption of UE listening to the PDCCH.

[0119] Table 3 shows the correlation between the frequency band of the monitoring PO and the wake-up signal group index.

[0120]

[0121] In one embodiment, the UE determines the wake-up signal subgroup index in the associated wake-up signal group based on the UE index. For example, the wake-up signal subgroup index of the UE in the associated wake-up signal group is equal to floor(UE_ID / N) mod Z, where N is the number of PFs configured in one paging cycle on the frequency band of the UE's listening PO, and Z is the number of wake-up signal subgroups. Z can be determined in at least one of the following ways:

[0122] o Z is a pre-configured or pre-defined integer; optionally, the value of Z can be the number of information bits of the configured wake-up signal X or an integer multiple of 2 raised to the power of X;

[0123] o equals the number of information bits in the configured wake-up signal X or 2 raised to the power of X.

[0124] When each bit of the wake-up signal indicates whether a wake-up signal subgroup has been woken up, Z equals the configured X. The information bits of the wake-up signal, from high to low, correspond to the wake-up signal subgroup indices within a wake-up signal group, from smallest to largest. If the bit associated with the wake-up signal subgroup corresponding to the UE is '0', the UE does not expect to listen to the associated PO; if the bit associated with the wake-up signal subgroup corresponding to the UE is '1', the wake-up signal subgroup corresponding to the UE is woken up. When all the information bits of the wake-up signal indicate whether a wake-up signal subgroup has been woken up, Z equals 2 raised to the power of X. The information bits of the wake-up signal indicate a wake-up signal subgroup index. If the UE detects the wake-up signal and / or the wake-up signal carries a wake-up signal subgroup index, the UE listens to the associated PO. Otherwise, the UE does not expect to listen to the associated PO. This operation can reduce the number of UEs within a wake-up signal subgroup. When the network sends a wake-up signal to indicate that a UE within a wake-up signal subgroup is woken up to receive a paging message, the number of other UEs within the wake-up signal subgroup that are woken up simultaneously is reduced, thereby reducing UE power consumption.

[0125] In one embodiment, to further reduce the power consumption of the UE, more wake-up signal subgroups can be configured for the wake-up signal group to which the UE belongs. If the number Z of wake-up signal subgroups is greater than the number of information bits X of a wake-up signal or a power of 2, the UE determines the number of subgroup sets based on the number of information bits X of a wake-up signal or a power of 2. For example, the UE determines the number of subgroup sets as L by L = sup(Z / X) or L = sup(Z / 2^X). Here, sup is the floor function. The UE determines the subgroup set index in the associated wake-up signal group based on the UE index. The wake-up signal subgroup set index of the UE in the associated wake-up signal group is equal to floor(UE_ID / N) mod L. The UE determines the wake-up signal subgroup index in the wake-up signal group based on the UE index using the configured number Z of wake-up signal subgroups. For example, the wake-up signal subgroup index SG of the UE in the associated wake-up signal group is equal to floor(UE_ID / N) mod Z or floor(UE_ID / N) mod 2^Z. The UE determines the wake-up signal subgroup index in a subgroup set based on the wake-up signal subgroup index SG in the associated wake-up signal group. For example, the wake-up signal subgroup index of the UE in the associated subgroup set is equal to SG mod L. UEs associated with the same wake-up signal subgroup set index listen to the same wake-up signal. When each bit of the wake-up signal indicates whether a wake-up signal subgroup in the associated subgroup set has been woken up, the information bits of the wake-up signal, from high to low, correspond to the wake-up signal subgroup index in the associated subgroup set from smallest to largest. If the bit associated with the wake-up signal subgroup corresponding to the UE is '0', the UE does not expect to listen to the associated PO; if the bit associated with the wake-up signal subgroup corresponding to the UE is '1', the wake-up signal subgroup corresponding to the UE is woken up. When all the information bits of the wake-up signal indicate whether a wake-up signal subgroup in an associated subgroup set has been woken up, the information bits of the wake-up signal indicate a wake-up signal subgroup index in the associated subgroup set. If the UE detects the wake-up signal and / or the wake-up signal carries a wake-up signal subgroup index, the UE listens to the associated PO. Otherwise, the UE does not expect to listen to the associated PO.

[0126] The following describes the method for determining the association between the low-power wake-up signal group / subgroup set and the LO / MO.

[0127] In one embodiment, the UE obtains configuration information of the Locator (LO) and the monitoring occupancy (MO) configuration information via an SIB message. Each LO may contain multiple MOs, and the UE can monitor the MOs within K*N consecutive MOs or K non-consecutive MOs. K is the number of MOs that transmit the same and / or different MO information bits in the same beam direction, and N is the number of beams receiving the MOs. K and N are predefined or preconfigured values, and are integers greater than or equal to 1. The LO configuration information includes at least one of the following parameters: one or more minimum time intervals from the end or start position of one or more LOs to the end or start position of an SFN associated with the LO; the duration of the LO, optionally, the duration may be the maximum duration of the LO. If the UE receives a MO after the maximum duration of the LO or after the end position of the LO, the UE does not expect to monitor the associated PO. The configuration information of the wake-up signal MO includes at least one of the following parameters: the (time) interval between the first wake-up signal MO and the start or end position of LO, the interval between two adjacent wake-up signals MO, the duration of the wake-up signal MO, the (time) interval between the first wake-up signal MO and the start or end position of LO in each UE subgroup set, and the number or length (duration) of MOs associated with each UE subgroup set.

[0128] In one embodiment, the UE determines one or more unique Loops (LOs) through an associated wake-up signal group or set of wake-up signal groups, wherein multiple LOs can be determined by a UE capability reported by the UE with different wake-up delays. UEs associated with the same wake-up signal group or set of wake-up signal groups listen to one or more LOs with a wake-up delay greater than the wake-up delay reported by the UE, or listen to MOs within the most recent LO that meets the wake-up delay reported by the UE, until a wake-up signal is detected and / or the wake-up signal indicates that the subgroup to which the UE belongs has been woken up, or whichever is earlier. A wake-up signal can be used to indicate whether a subgroup within a wake-up signal group associated with the UE has been woken up. Or a wake-up signal can be used to indicate whether a wake-up signal group within a set of wake-up signal groups associated with the UE has been woken up.

[0129] In one embodiment, the UE determines one or more unique Loops (LOs) through an associated set of wake-up signal groups. Multiple LOs can be determined by a UE capability reported by the UE that has different wake-up delays. A UE associated with a set of wake-up signal groups listens on one or more LOs with a wake-up delay greater than the UE's reported wake-up delay, or listens on a set of MOs associated with the wake-up signal group set index within the most recent LO that satisfies the UE's reported wake-up delay, or until a wake-up signal is detected and / or the wake-up signal indicates that the UE's subgroup is awake, or whichever is earlier. The UE determines a set of multiple MOs, either consecutive or non-consecutive, within the unique set of one or more LOs through the associated wake-up signal group set index. A wake-up signal can be used to indicate whether a subgroup within the UE's associated set of wake-up signal subgroups has been awakened. The association between the wake-up signal group set index and the MOs can be through the wake-up signal group set index being associated with the MO groups from left to right in the LOs in ascending order.

[0130] The following describes the behavior of the UE listening for wake-up signals.

[0131] In one embodiment, the UE determines the frequency domain position for listening to the wake-up signal based on the association between a frequency band reported by the UE capability and the predefined or pre-configured wake-up signal listening frequency band and the frequency band for listening to POs. The UE determines the end position of the LO based on the start position of the associated paging frame and one or more configured offsets and / or RF adjustment time, according to the UE's SIB configuration. The UE determines the associated SFN index based on a frequency band reported by the UE capability and the paging frame offset, paging period, and the number of POs contained within a paging period configured on the frequency band for listening to POs. Based on the SFN index, a unique associated wake-up signal group is determined. According to the association between the wake-up signal group or wake-up signal group index and LO / MO, and / or the association between the wake-up signal subgroup set and LO / MO, the UE listens to all LO / MO resources corresponding to its group or subgroup, or until a wake-up signal is detected and / or the wake-up signal indicates that the UE's subgroup is awake, or whichever is earlier. If the UE detects a wake-up signal and the wake-up signal carries a wake-up indication of the wake-up signal subgroup associated with the UE, the UE will listen to the PO associated with the UE in the paging frame associated with the corresponding wake-up signal group on a supported or reported frequency band; otherwise, the UE does not expect to listen to the associated PO.

[0132] Figure 8 A block diagram of a UE 800 according to an embodiment of the present disclosure is shown.

[0133] refer to Figure 8 According to embodiments of the present disclosure, the UE 800 may include a transceiver 801 and a controller 802. For example, the transceiver 801 may be configured to transmit and receive signals. For example, the controller 802 may be coupled to the transceiver 801 and configured to perform the aforementioned methods.

[0134] Figure 9 A block diagram of a base station 900 according to an embodiment of the present disclosure is shown.

[0135] refer to Figure 9 According to embodiments of the present disclosure, a base station 900 may include a transceiver 901 and a controller 902. For example, the transceiver 901 may be configured to transmit and receive signals. For example, the controller 902 may be coupled to the transceiver 901 and configured to perform the aforementioned methods.

[0136] Those skilled in the art will understand that the illustrative embodiments described above are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein can be combined in any combination. Furthermore, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that aspects of the invention disclosed herein, as generally described herein and illustrated in the accompanying drawings, can be arranged, substituted, combined, separated, and designed in a variety of different configurations, all of which are contemplated herein.

[0137] Those skilled in the art will understand that the various illustrative logic blocks, modules, circuits, and steps described herein can be implemented in hardware, software, or a combination of both. To clearly illustrate this interchangeability between hardware and software, the various illustrative components, blocks, modules, circuits, and steps are described above in the form of sets of functions. Whether such sets of functions are implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art may implement the described sets of functions in different ways for each specific application, but such design decisions should not be construed as departing from the scope of this application.

[0138] The various illustrative logic blocks, modules, and circuits described in this application may be implemented or performed using a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but in alternatives, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0139] The steps of the methods or algorithms described in this application may be embodied directly in hardware, in a software module executed by a processor, or in a combination of both. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read and write information to / from the storage medium. In an alternative, the storage medium may be integrated into the processor. The processor and storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and storage medium may reside as discrete components in the user terminal.

[0140] In one or more exemplary designs, the functionality may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functionality may be stored or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, the latter including any medium that facilitates the transfer of a computer program from one location to another. Storage media may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0141] The above description is merely an exemplary embodiment of this application and is not intended to limit the scope of protection of this application. The scope of protection of this application is determined by the appended claims.

Claims

1. A method performed by a user equipment (UE) in a wireless communication system, comprising: Send information related to the first frequency band for listening to paging opportunities; Receive first configuration information related to listening to a first signal for wake-up, wherein the first configuration information includes information related to a first frequency band for listening to the paging timing and a second frequency band for listening to the first signal associated with the first frequency band for listening to the paging timing; Based on the first configuration information, determine the second frequency band for monitoring the first signal; Based on the determined second frequency band for monitoring the first signal, the first signal is monitored.

2. The method according to claim 1, wherein, The first configuration information is received in system information and / or Radio Resource Control (RRC) messages.

3. The method according to claim 1, wherein, The second frequency band for monitoring the first signal is associated with a first frequency band for monitoring multiple paging opportunities.

4. The method according to claim 1, further comprising: If the UE reselects the first frequency band for listening to the paging timing, it will not listen to the first signal and will periodically listen to the paging timing and / or paging early indication.

5. The method according to claim 4, further comprising: If the UE receives a message confirming the reselection of the first frequency band for listening to the paging timing, then after the first time interval, the third frequency band for listening to the paging timing is applied.

6. The method according to claim 5, further comprising, if the UE receives a message confirming the reselection of the first frequency band for listening to the paging timing, performing at least one of the following: After the second time interval, a paging opportunity associated with the first signal is monitored on the third frequency band where the paging opportunity is monitored; After the condition for listening to the first signal is met, the first signal associated with the paging frame where the paging timing occurs is listened to, and / or the paging timing is not periodically listened to, wherein the condition includes the measurement value of the second signal of the serving cell where the UE is located being greater than a threshold value; The first signal associated with the paging frame where the paging timing occurs is not monitored until the conditions for monitoring the first signal are met.

7. The method according to claim 5, further comprising: If, after the UE reselects the first frequency band for listening to the paging opportunity, there is no paging opportunity associated with the first signal within a paging cycle that satisfies the second time interval, then at least one of the following is performed: Listen for the paging opportunity associated with the first signal in the next paging cycle; After the condition for listening to the first signal is met, the first signal associated with the paging frame where the paging timing occurs in the next paging cycle is listened to, wherein the condition includes the measurement value of the second signal of the serving cell where the UE is located being greater than a threshold value. Before the conditions for listening to the first signal are met, the first signal associated with the paging frame where the paging timing occurs in the next paging cycle is not listened to.

8. The method according to claim 1, further comprising: The temporal location of the first signal timing is determined based on the starting position of the paging frame associated with the UE on the first frequency band where the paging timing is monitored, and at least one offset.

9. The method according to claim 8, further comprising: If the subgroup to which the UE is located is associated with a first signal timing resource after the time domain position of the first signal timing, then the first signal and / or the paging timing associated with the first signal will not be monitored, and / or the paging timing will be monitored periodically.

10. The method of claim 8, further comprising: If the subgroup to which the UE is located is associated with a first signal timing resource after the time domain position of the first signal timing, then the first signal and / or the next paging timing associated with the first signal are monitored, and / or the first signal associated with the paging frame where the next paging timing is located is not monitored.

11. The method according to claim 1, wherein, The first signal is used to indicate whether the UE associated with the first signal group is listening for paging opportunities, and The first signal group is associated with all UEs that have the same radio frame number index on the first frequency band of all paging opportunities associated with the second frequency band of the first signal.

12. The method according to claim 11, wherein, The first signal group is associated with all UEs associated with a paging time on a paging frame on a first frequency band associated with a paging time associated with a second frequency band that listens to the first signal.

13. The method of claim 11, further comprising: The index of the first signal subgroup associated with the UE is determined based on the UE index, the number of paging frames in the paging cycle, and / or the number of first signal subgroups associated with the UE in the first signal group.

14. The method of claim 11, further comprising: The index of the first signal subgroup set associated with the UE is determined based on the UE index, the number of paging frames in the paging cycle, and / or the number of first signal subgroup sets associated with the UE in the first signal group.

15. The method according to claim 1, further comprising: Receive second configuration information related to the timing of the first signal and / or third configuration information related to the timing of the first signal monitoring.

16. The method according to claim 11, wherein, The first signal is also used to indicate whether a UE associated with the first signal group set is listening for a paging opportunity, and the method further includes: Based on the first signal group or the set of the first signal groups, determine one or more first signal timings.

17. The method of claim 16, further comprising: Listen for one or more first signal timings that are greater than the wake-up delay or for a first signal timing within the most recent first signal timing that meets the wake-up delay, until the first signal is detected and / or the first signal indicates that the subgroup to which the UE belongs has been woken up.

18. A method performed by a base station in a wireless communication system, comprising: Receive information related to the first frequency band when listening for paging; Sending first configuration information related to listening for a first signal used for wake-up, wherein the first configuration information includes information related to a first frequency band for listening to the paging timing and a second frequency band for listening to the first signal associated with the first frequency band for listening to the paging timing. The second frequency band for monitoring the first signal is determined based on the first configuration information, and the first signal is monitored based on the determined second frequency band for monitoring the first signal.

19. A user equipment (UE) in a wireless communication system, comprising: transceiver; as well as A controller, coupled to the transceiver, is configured to perform the method according to any one of claims 1-17.

20. A base station in a wireless communication system, comprising: transceiver; as well as A controller, coupled to the transceiver, is configured to perform the method according to claim 18.

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