Method and apparatus in wireless communication system

Abstract

The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A method and an apparatus in a wireless communication system are disclosed, the method including: transmitting information related to a first frequency band for paging occasion monitoring; receiving first configuration information related to first signal for wake up monitoring, where the first configuration information includes information related to the first frequency band for paging occasion monitoring and a second frequency band for first signal monitoring that is associated with the first frequency band for paging occasion monitoring; determining the second frequency band for first signal monitoring based on the first configuration information; monitoring a first signal based on the determined second frequency band for first signal monitoring.

Description

METHOD AND APPARATUS IN WIRELESS COMMUNICATION SYSTEM

[0001] The present invention relates to the field of wireless communication technology, and more specifically, to a method and an apparatus in a wireless communication system.

[0002] Considering the development of wireless communication from generation to generation, the technologies have been developed mainly for services targeting humans, such as voice calls, multimedia services, and data services. Following the commercialization of 5th-generation (5G) communication systems, it is expected that the number of connected devices will exponentially grow. Increasingly, these will be connected to communication networks. Examples of connected things may include vehicles, robots, drones, home appliances, displays, smart sensors connected to various infrastructures, construction machines, and factory equipment. Mobile devices are expected to evolve in various form-factors, such as augmented reality glasses, virtual reality headsets, and hologram devices. In order to provide various services by connecting hundreds of billions of devices and things in the 6th-generation (6G) era, there have been ongoing efforts to develop improved 6G communication systems.

[0003] 6G communication systems, which are expected to be commercialized around 2030, have various significantly improved metrics compared to the current 5G communication systems. The peak data rate will reach at least 50 Gbit / s, and the user experienced data rate will reach at least 300 Mbit / s, the air-interface latency will be less than 1 ms, and the air-interface reliability will reach 10-5. In addition to the above basic communication metrics, the 6G communication systems will also have sensing capabilities, AI-related capabilities, better security, better interoperability and better sustainability.

[0004] In order for the 6G communication systems to fulfill the above metrics, more advanced air-interface technologies and network technologies need to be developed. The evolution of extreme Multiple Input Multiple Output (extreme MIMO) has been already under consideration, including the use of ultra-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 enables higher spectral efficiency, greater coverage, and precise localization and sensing capabilities. Additionally, technologies that contribute to improve high-frequency band coverage, including metamaterial-based lenses and antennas, new antenna architectures, and reconfigurable intelligent surface (RIS), etc., need to be better evolved and developed.

[0005] In order to meet some of newly added functions of the 6G communication systems, new technologies need to be developed in the terms of network energy saving, air-interface security, and network security, meanwhile the feasibility of fusion technologies such as Integrated Sensing and Communication, needs to be studied.

[0006] Moreover, in order to improve the spectral efficiency and the overall network performances, the following technologies have been developed for 6G communication systems: a full-duplex technology for enabling an uplink transmission and a downlink transmission to simultaneously use the same frequency resource at the same time; a network technology for utilizing satellites, high-altitude platform stations (HAPS), and the like in an integrated manner; an improved network structure for supporting mobile base stations and the like and enabling network operation optimization and automation and the like; a dynamic spectrum sharing technology via collision avoidance based on a prediction of spectrum usage; an use of artificial intelligence (AI) in wireless communication for improvement of overall network operation by utilizing AI from a designing phase for developing 6G and internalizing end-to-end AI support functions; and a next-generation distributed computing technology for overcoming the limit of user equipment (UE) computing ability through reachable super-high-performance communication and computing resources (such as mobile edge computing (MEC), clouds, and the like) over the network. In addition, through designing new protocols to be used in 6G communication systems, developing mechanisms for implementing a hardware-based security environment and safe use of data, and developing technologies for maintaining privacy, attempts to strengthen the connectivity between devices, optimize the network, promote softwarization of network entities, and increase the openness of wireless communications are continuing.

[0007] It is expected that research and development of 6G communication systems in hyper-connectivity, including person to machine (P2M) as well as machine to machine (M2M), will allow the next hyper-connected experience. Particularly, it is expected that services such as truly immersive extended reality (XR), high-fidelity mobile hologram, and digital replica could be provided through 6G communication systems. In addition, services such as remote surgery for security and reliability enhancement, industrial automation, and emergency response will be provided through the 6G communication system such that the technologies could be applied in various fields such as industry, medical care, automobiles, and home appliances.

[0008] According to an embodiment of the present disclosure, there is provided a method performed by a user equipment (UE) in a wireless communication system including: transmitting information related to a first frequency band for paging occasion monitoring; receiving first configuration information related to first signal for wake up monitoring, where the first configuration information includes information related to the first frequency band for paging occasion monitoring and a second frequency band for first signal monitoring that is associated with the first frequency band for paging occasion monitoring; determining the second frequency band for first signal monitoring based on the first configuration information; monitoring a first signal based on the determined second frequency band for first signal monitoring.

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

[0010] In some implementations, the second frequency band for first signal monitoring is associated with multiple first frequency bands for paging occasion monitoring.

[0011] In some implementations, the method further includes: if the UE reselects the first frequency band for paging occasion monitoring, not monitoring the first signal, and periodically monitoring a paging occasion and / or a paging early indication.

[0012] In some implementations, the method further includes: if the UE receives a message for acknowledging the reselecting of the first frequency band for paging occasion monitoring, applying a third frequency band for paging occasion monitoring after a first time interval.

[0013] In some implementations, the method further includes, if the UE receives a message for acknowledging the reselecting of the first frequency band for paging occasion monitoring, performing at least one of: monitoring the paging occasion associated with the first signal on the third frequency band for paging occasion monitoring after a second time interval; after the condition for first signal monitoring is satisfied, monitoring a first signal associated with a paging frame in which the paging occasion is located, and / or not periodically monitoring the paging occasion, where the condition includes that a measurement value of a second signal of a serving cell in which the UE is located is greater than a threshold value; not monitoring the first signal associated with the paging frame in which the paging occasion is located until the condition for first signal monitoring is satisfied.

[0014] In some implementations, the method further includes: if there are no paging occasion associated with the first signal in a paging cycle satisfying a second time interval after the UE reselects the first frequency band for paging occasion monitoring, performing at least one of: monitoring the paging occasion associated with the first signal in a next paging cycle; monitoring a first signal associated with a paging frame in which the paging occasion is located in the next paging cycle after the condition for first signal monitoring is satisfied, where the condition includes that a measurement value of a second signal of a serving cell in which the UE is located is greater than a threshold value; not monitoring the first signal associated with the paging frame in which the paging occasion is located in the next paging cycle until the condition for first signal monitoring is satisfied.

[0015] In some implementations, the method further includes: determining a time domain position of the first signal occasion based on a start position of a paging frame in which the paging occasion associated with the UE is located on the first frequency band for paging occasion monitoring and at least one offset.

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

[0017] In some implementations, the method further includes: if a subgroup to which the UE belongs is associated with a first signal occasion resource after the time domain location of the first signal occasion, monitoring the first signal and / or a next paging occasion associated with the first signal, and / or not monitoring a first signal associated with a paging frame in which the next paging occasion is located.

[0018] In some implementations, the first signal is used to indicate whether UEs associated with / belonging to a first signal group monitor the paging occasion, and the first signal group is associated with UEs associated with / belonging to all paging occasions with same radio frame number index on first frequency bands for paging occasion monitoring, where all of the first frequency bands are associated with the second frequency band for first signal monitoring.

[0019] In some implementations, the first signal group is associated with UEs associated with / belonging to all paging occasions on one paging frame associated with one first frequency band for paging occasion monitoring, where the one first frequency band is associated with the second frequency band for first signal monitoring.

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

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

[0022] In some implementations, the method further includes: receiving second configuration information related to a first signal occasion and / or third configuration information related to a first signal monitoring occasion.

[0023] In some implementations, the first signal occasion includes multiple first signal monitoring occasions, and the method further includes monitoring the first signal in K*N consecutive first signal monitoring occasions or K non-consecutive first signal monitoring occasions, where K is a number of first signal monitoring occasions in which same and / or different first signal information bits are transmitted in a same beam direction, and N is a number of beams in which the first signal is received.

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

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

[0026] In some implementations, the first signal is further used to indicate whether UEs associated with / belonging to a first signal group set monitor the paging occasion, and the method further includes: determining one or more first signal occasions based on the first signal group or the first signal group set.

[0027] In some implementations, the method further includes: monitoring one or more first signal occasions that are greater than a wake up delay or a first signal monitoring occasion in a latest first signal occasion that satisfies the wake up delay until the first signal is detected and / or the first signal indicates that a subgroup to which the UE belongs is woken up.

[0028] According to an embodiment of the present disclosure, there is provided a method performed by a base station in a wireless communication system including: receiving information related to a first frequency band for paging occasion monitoring; transmitting first configuration information related to first signal for wake up monitoring, where the first configuration information includes information related to the first frequency band for paging occasion monitoring and a second frequency band for first signal monitoring that is associated with the first frequency band for paging occasion monitoring, where the second frequency band for first signal monitoring is determined based on the first configuration information, and a first signal is monitored based on the determined second frequency band for first signal monitoring.

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

[0030] In some implementations, the second frequency band for first signal monitoring is associated with multiple first frequency bands for paging occasion monitoring.

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

[0032] In some implementations, if a message for acknowledging the reselecting of the first frequency band for paging occasion monitoring is transmitted, a third frequency band for paging occasion monitoring is applied after a first time interval.

[0033] In some implementations, if a message for acknowledging the reselecting of the first frequency band for paging occasion monitoring is transmitted, at least one of the following is performed: a paging occasion associated with the first signal on the third frequency band for paging occasion monitoring being monitored after a second time interval; after a condition for first signal monitoring is satisfied, a first signal associated with a paging frame in which the paging occasion is located being monitored, and / or the paging occasion being not periodically monitored, where the condition includes that a measurement value of a second signal of a serving cell in which the UE is located is greater than a threshold value; the first signal associated with the paging frame in which the paging occasion is located being not monitored until the condition for first signal monitoring is satisfied.

[0034] In some implementations, if there are no paging occasion associated with the first signal in a paging cycle satisfying a second time interval after the UE reselects the first frequency band for paging occasion monitoring, at least one of the following is performed: the paging occasion associated with the first signal in a next paging cycle being monitored; a first signal associated with a paging frame in which the paging occasion is located in the next paging cycle being monitored after a condition for first signal monitoring is satisfied, where the condition includes that a measurement value of a second signal of a serving cell in which the UE is located is greater than a threshold value; the first signal associated with the paging frame in which the paging occasion is located in the next paging cycle being not monitored until the condition for first signal monitoring is satisfied.

[0035] In some implementations, a time domain position of a first signal occasion is determined based on a start position of a paging frame in which a paging occasion associated with the UE is located on the first frequency band for paging occasion monitoring and at least one offset.

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

[0037] In some implementations, if a subgroup to which the UE belongs is associated with a first signal occasion resource after the time domain location of the first signal occasion, the first signal and / or a next paging occasion associated with the first signal is monitored, and / or a first signal associated with a paging frame in which the next paging occasion is located is not monitored.

[0038] In some implementations, the first signal is used to indicate whether UEs associated with / belonging to a first signal group monitor the paging occasion, and the first signal group is associated with UEs associated with / belonging to all paging occasions with same radio frame number index on first frequency bands for paging occasion monitoring, where all of the first frequency bands are associated with the second frequency band for first signal monitoring.

[0039] In some implementations, the first signal group is associated with UEs associated with / belonging to all paging occasions on one paging frame associated with one first frequency band for paging occasion monitoring, where the one first frequency band is associated with the second frequency band for first signal monitoring.

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

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

[0042] In some implementations, the method further includes: transmitting second configuration information related to a first signal occasion and / or third configuration information related to a first signal monitoring occasion.

[0043] In some implementations, the first signal occasion includes multiple first signal monitoring occasions, and the method further includes monitoring the first signal in K*N consecutive first signal monitoring occasions or K non-consecutive first signal monitoring occasions, where K is a number of first signal monitoring occasions in which same and / or different first signal information bits are transmitted in a same beam direction, and N is a number of beams in which the first signal is received.

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

[0045] In some implementations, the third configuration information includes at least one of: a time interval between a first signal monitoring occasion and a start position or an end position of the first signal occasion,

[0046] a time interval between two adjacent first signal monitoring occasions, a duration of the first signal monitoring occasion, a time interval between the first signal monitoring occasion and a start position or an end position of the first signal occasion in each UE subgroup set, and a number or a duration of first signal monitoring occasions associated with each UE subgroup set.

[0047] In some implementations, the first signal is further used to indicate whether UEs associated with / belonging to a first signal group set monitor the paging occasion, and the method further includes: determining one or more first signal occasions based on the first signal group or the first signal group set.

[0048] In some implementations, one or more first signal occasions that are greater than a wake up delay or a first signal monitoring occasion in a latest first signal occasion that satisfies the wake up delay is monitored until the first signal is detected and / or the first signal indicates that a subgroup to which the UE belongs is woken up.

[0049] According to an embodiment of the present disclosure, there is provided a user equipment (UE) in a wireless communication system including: a transceiver; and a controller coupled with the transceiver and configured to perform the aforementioned methods.

[0050] According to an embodiment of the present disclosure, there is provided a base station in a wireless communication system including: a transceiver; and a controller coupled with the transceiver and configured to perform the aforementioned methods.

[0051] 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:

[0052] FIG. 1 illustrates an example wireless network according to embodiments of the present disclosure;

[0053] FIG. 2 illustrates an example base station according to embodiments of the present disclosure;

[0054] FIG. 3 illustrates an example user equipment according to embodiments of the present disclosure;

[0055] FIG. 4 illustrates a flowchart of a method performed by a UE according to an embodiment of the present disclosure;

[0056] FIG. 5 illustrates a flowchart of a method performed by a UE according to an embodiment of the present disclosure;

[0057] FIG. 6 illustrates a diagram of an association between a frequency band for paging occasion monitoring and a wake up signal group according to an embodiment of the present disclosure;

[0058] FIG. 7 illustrates a diagram of an association between a frequency band for paging occasion monitoring and a wake up signal group according to an embodiment of the present disclosure;

[0059] FIG. 8 illustrates a block diagram of a UE according to an embodiment of the present disclosure; and

[0060] FIG. 9 illustrates a block diagram of a base station according to an embodiment of the present disclosure.

[0061] Hereinafter, embodiments of the disclosure will be described in detail with reference to the accompanying drawings.

[0062] In describing the embodiments, descriptions related to technical contents well-known in the art and not associated directly with the disclosure will be omitted. Such an omission of unnecessary descriptions is intended to prevent obscuring of the main idea of the disclosure and more clearly transfer the main idea.

[0063] For the same reason, in the accompanying drawings, some elements may be exaggerated, omitted, or schematically illustrated. Further, the size of each element does not completely reflect the actual size. In the drawings, identical or corresponding elements are provided with identical reference numerals or different reference numerals.

[0064] The advantages and features of the disclosure and ways to achieve them will be apparent by making reference to embodiments as described below in detail in conjunction with the accompanying drawings. However, the disclosure is not limited to the embodiments set forth below, but may be implemented in various different forms. The following embodiments are provided only to completely disclose the disclosure and inform those skilled in the art of the scope of the disclosure, and the disclosure is defined only by the scope of the appended claims. Throughout the specification, the same or like reference numerals designate the same or like elements. Furthermore, in describing the disclosure, a detailed description of known functions or constitution incorporated herein will be omitted in the case that it is determined that the description may make the subject matter of the disclosure unnecessarily unclear. The terms which will be described below are terms defined in consideration of the functions in the disclosure, and may be different according to users, intentions of the operators, or customs. Therefore, the definitions of the terms should be made based on the contents throughout the specification.

[0065] Herein, it will be understood that each block of the flowchart illustrations, and combinations of blocks in the flowchart illustrations, may be performed based on computer program instructions. These computer program instructions may be loaded collectively onto at least one processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which perform through any one of, or in any combination of, the at least one processor of the computer or other programmable data processing apparatus, create means for performing the functions specified in the flowchart block(s). These computer program instructions may also be stored in a non-transitory computer usable or computer-readable memory that may direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer usable or computer-readable memory produce an article of manufacture including instruction means that perform the function specified in the flowchart block(s). The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable data processing apparatus to produce a computer executed process such that the instructions that perform on the computer or other programmable data processing apparatus provide steps for executing the functions specified in the flowchart block(s).

[0066] Further, each block may represent a module, segment, or portion of code, which includes one or more executable instructions for executing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the blocks may occur out of the order. For example, two blocks(or functions) shown in succession may in fact be performed substantially concurrently or the blocks may sometimes be performed in the reverse order, depending upon the functionality involved.

[0067] As used in embodiments of the disclosure, a “~unit” may refer to a software element or a hardware element, such as a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC), which performs a predetermined function. However, the term including the word “~unit” does not always have a meaning limited to software or hardware. The “~unit” may be constructed either to be stored in an addressable storage medium or to execute one or more processors. Therefore, the “~unit” includes, for example, software elements, object-oriented software elements, components such as class elements and task elements, processes, functions, properties, procedures, sub-routines, segments of a program code, drivers, firmware, micro-codes, circuits, data, database, data structures, tables, arrays, and parameters. The components and functions provided by the “~unit” may be either combined into a smaller number of components and a “~unit,” or divided into additional components and a “~unit.” Moreover, the components and “~units” may be implemented to reproduce one or more central processing units (CPUs) within a device or a security multimedia card. Further, in the embodiments, the “~unit” may include one or more processors.

[0068] It should be appreciated that the blocks in each flowchart and combinations of the flowcharts may be performed by one or more computer programs which include instructions. The entirety of the one or more computer programs may be stored in a single memory device or the one or more computer programs may be divided with different portions stored in different multiple memory devices.

[0069] Any of the functions or operations described herein can be processed by one processor or a combination of processors. The one processor or the combination of processors is circuitry performing processing and includes circuitry like an application processor (AP, e.g. a CPU), a communication processor (CP, e.g., a modem), a graphics processing unit (GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a Wi-Fi chip, a Bluetooth® chip, a global positioning system (GPS) chip, a near field communication (NFC) chip, connectivity chips, a sensor controller, a touch controller, a finger-print sensor controller, a display driver integrated circuit (IC), an audio CODEC chip, a universal serial bus (USB) controller, a camera controller, an image processing IC, a microprocessor unit (MPU), a system on chip (SoC), an IC, or the like.

[0070] It will be appreciated that various embodiments of the disclosure according to the claims and description in the specification can be realized in the form of hardware, software or a combination of hardware and software.

[0071] Any such software may be stored in non-transitory computer readable storage media. The non-transitory computer readable storage media store one or more computer programs (software modules), the one or more computer programs include computer-executable instructions that, when executed by one or more processors of an electronic device individually or collectively, cause the electronic device to perform a method of the disclosure.

[0072] Any such software may be stored in the form of volatile or non-volatile storage such as, for example, a storage device like read only memory (ROM), whether erasable or rewritable or not, or in the form of memory such as, for example, random access memory (RAM), memory chips, device or integrated circuits or on an optically or magnetically readable medium such as, for example, a compact disk (CD), digital versatile disc (DVD), magnetic disk or magnetic tape or the like. It will be appreciated that the storage devices and storage media are various embodiments of non-transitory machine-readable storage that are suitable for storing a computer program or computer programs comprising instructions that, when executed, implement various embodiments of the disclosure. Accordingly, various embodiments of the present disclosure may provide a program comprising code for implementing apparatus or a method as claimed in any one of the claims of this specification and a non-transitory machine-readable storage storing such a program.

[0073] Hereinafter, the determination of priority between A and B in the present disclosure may refer to various actions such as selecting the one having a higher priority based on a predefined priority rule and performing an operation corresponding thereto, or omitting or dropping an operation corresponding to the one having a lower priority.

[0074] Hereinafter, "A or B" as described in the present disclosure may be understood as "A and / or B," which may include A, or B, or both A and B.

[0075] In addition, "at least one of A, B, and C" as described in the present disclosure may be understood to include A, or B, or C, or any combination of A, B, and C.

[0076] In addition, "at least one of A, B, or C" as described in the present disclosure may be understood to include A, or B, or C, or any combination of A, B, and C.

[0077] Furthermore, "A / B" as described in the present disclosure may be understood as "A and / or B," which may include A, or B, or both A and B.

[0078] Furthermore, "A, B" as described in the present disclosure may be understood as "A and / or B," which may include A, or B, or both A and B.

[0079] Furthermore, "A and B" as described in the present disclosure may be understood as "A and / or B," which may include A, or B, or both A and B.

[0080] Furthermore, “if condition A and condition B are satisfied,” as described in the present disclosure, may not be limited to a case where both condition A and condition B are satisfied, but may be understood to include a case where either condition A or condition B is individually satisfied, both condition A and condition B are satisfied, or one or more additional conditions are satisfied in combination.

[0081] Furthermore, throughout this disclosure, ordinal terms such as "first," "second," "third," etc., (and similar qualifiers) are used merely to distinguish between different instances, occurrences, configurations, messages, stages, or aspects of elements, operations, or information as described herein. Unless the context clearly dictates otherwise, the use of such ordinal terms does not itself require that the elements, operations, or information distinguished by these terms be structurally different, numerically distinct, or substantively dissimilar. For example, a "first signal" and a "second signal" may refer to instances of the same signal transmitted at different times or containing the same core information despite minor variations, or they may refer to signals with different content or characteristics, depending on the specific context. Similarly, a "first value" and a "second value" may represent the same magnitude but measured or applied in different circumstances, or they may represent different magnitudes. The interpretation should be guided by the specific technical context, function, and relationship described in the relevant portion of the specification and claims.

[0082] Furthermore, the terms “first ~”, “second ~”, etc., as described in the present disclosure with respect to various elements (e.g., information, objects, operation, sequences, or the like), should not limit those elements. These terms may only be intended to distinguish one element from another, and may not be intended to indicate a specific order. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element.

[0083] Furthermore, even if “first ~” and “second ~” are described in the present disclosure, it may be understood that element(s) referred to by “first ~” and “second ~” may be the same or different. For example, in case of element(s) being information, first information and second information may both be same information and, in some cases, are separate and different information.

[0084] In addition, the terms “if ~” and “in case that ~” as used in the disclosure or claims may be interpreted to include the meanings of “when (or upon) ~,” “in response to ~,” “based on ~,” or “according to ~,” and may be used interchangeably with these expressions. In addition, expressions other than those exemplified herein may also be used, as long as they have substantially the same meaning and do not impair the technical features of the present disclosure.

[0085] For example, the physical layer signaling may be referred to as Layer 1 (L1) signaling and may include downlink control information (DCI). In addition, the higher layer signaling may include a medium access control (MAC) control message, a radio resource control (RRC) signaling message, a non-access stratum (NAS) signaling message, or an application layer message. The RRC signaling message may be referred to as L3 (layer 3) signaling. It should be noted, however, that the higher layer signaling is not limited to the aforementioned examples.

[0086] In addition, the term "not perform" as used in the present disclosure or claims may, in context, be understood to mean that the corresponding step is omitted or skipped. Such a term may be replaced with other terms having the same or substantially equivalent meaning.

[0087] In addition, "transmitting a message including A and B" as described in the present disclosure, may be understood as encompassing both (i) transmitting A and B in a single message, and (ii) transmitting A and B separately via multiple messages (e.g., transmitting a first message including A and a second message including B). This interpretation may also apply to messages that include two or more items (e.g., A, B, C), transmitted either together or separately.

[0088] In addition, "transmitting a message including A and transmitting a message including B" may also be interpreted as transmitting a message including A and B in a single message.

[0089] In the specific embodiments of the present disclosure described below, terms or components included in the disclosure may be expressed in singular or plural form depending on the specific embodiments presented. However, such singular or plural expressions are selected appropriately for convenience of description, and the present disclosure is not limited to a singular or plural number of components. A component expressed in the plural form may be implemented as a single component, and a component expressed in the singular form may be implemented as multiple components.

[0090] The drawings or flowcharts described below illustrate exemplary methods that may be implemented according to the principles of the present disclosure, and various modifications may be made to the methods illustrated in the flowcharts of the present disclosure. For example, although illustrated as a series of steps, various steps in each drawing or flowchart may overlap, occur in parallel, occur in a different order, or be repeated. In other examples, any step may be omitted or replaced with another step.

[0091] The methods and apparatuses proposed in the embodiments of the present disclosure are not limited to each embodiment individually, but may also be applied in combination of all or some of the embodiments proposed in the disclosure. Therefore, the embodiments of the present disclosure may be modified and applied without significantly departing from the scope of the present disclosure, as would be understood by those skilled in the art.

[0092] In this case, even if certain wordings are described differently across embodiments, they may be used interchangeably or in substitution or in combination if their underlying concepts are equivalent. For example, for the same or equivalent concept, even if one embodiment uses the expression "A" and another embodiment uses the expression "B", such expressions may be understood interchangeably, in substitution, or in combination.

[0093] The terms used in the following description to refer to access nodes, network entities, messages, interfaces between network entities, various types of identification information, and the like, are provided merely for the convenience of explanation by way of example. Therefore, the present disclosure is not limited to the terms described below, and other terms having equivalent technical meanings may also be used. Such terms may also be interchangeable with terms defined in any 3rd generation partnership project　(3GPP) technical specifications (TS) where appropriate.

[0094] Hereinafter, a base station is an entity that allocates resources to terminals, and may be at least one of a gNode B, an eNode B, a Node B, a base station (BS), a wireless access unit, a BS controller, or a node on a network.

[0095] Furthermore, the base station of the present disclosure may include a split architecture comprising a central unit (CU) and a distributed unit (DU). In this structure, the CU is configured to process the higher layers of the control and user planes, while the DU is configured to process lower-layer radio resource functions. The embodiments of the present disclosure may be equally applicable to 5G base station architectures in which such CU and DU functional splits are implemented.

[0096] A terminal may include a UE, a mobile station (MS), a cellular phone, a smartphone, a computer, or a multimedia system capable of performing communication functions.

[0097] In the disclosure, a downlink (DL) refers to a radio link through which a BS transmits a signal to a UE, and an uplink (UL) refers to a radio link through which a UE transmits a signal to a BS.

[0098] Furthermore, hereinafter, 5th generation (5G) mobile communication technologies (e.g., 5G new radio (NR)), 6th generation (6G) mobile communication technologies may be described by way of example, but the embodiments of the present disclosure may also be applied to other communication systems having similar technical backgrounds or channel types. For example, newly evolved mobile communication systems developed after 5G and 6G may be included. Furthermore, based on determinations by those skilled in the art, the embodiments of the present disclosure may also be applied to other communication systems (e.g., Wi-Fi systems) through some modifications without significantly departing from the scope of the present disclosure

[0099] In the following description, the terms physical channel and signal may be used interchangeably with data or control signal. For example, the term physical downlink shared channel (PDSCH) refers to a physical channel through which data is transmitted, but the term PDSCH may also be used to refer to the data itself. That is, in the present disclosure, the expression "transmit a physical channel" may be interpreted as being equivalent to the expression "transmit data or a signal via a physical channel."

[0100] Hereinafter, in the context of the present disclosure, higher layer signaling may refer to signaling corresponding to at least one or any combination of the following: master information block (MIB), system information block (SIB) or SIB M (M = 1, 2, ...), radio resource control (RRC), or medium access control (MAC) control element (CE), or a non-access stratum (NAS) signaling message, or an application layer message. The RRC signaling message may be referred to as L3 (layer 3) signaling.

[0101] In addition, L1 signaling may refer to signaling corresponding to at least one or any combination of signaling techniques using the at least one or any combination of the following physical layer channels or signaling: physical downlink control channel (PDCCH), downlink control information (DCI), user equipment (UE)-specific DCI, group-common DCI, common DCI, scheduling DCI (e.g., DCI used for scheduling downlink or uplink data), non-scheduling DCI (e.g., DCI not used for scheduling downlink or uplink data) physical uplink control channel (PUCCH), or uplink control information (UCI). The L1 signaling message may be referred to as a physical layer signaling.

[0102] Hereinafter, the expression that information is configured by the BS, as used in the present disclosure or claims, may, in context, be understood to mean that the terminal receives the corresponding information from the BS via a physical layer signaling or a higher layer signaling. Such an expression may be replaced with other terms having the same or substantially equivalent meaning.

[0103] Hereinafter, the operational principle of the present disclosure will be described in detail with reference to the accompanying drawings.

[0104] FIGS. 1-3 below describe various embodiments of the present disclosure implemented in wireless communications systems. The descriptions of FIGS. 1-3 are 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.

[0105] FIG. 1 illustrates an example wireless network according to embodiments of the present disclosure. The embodiment of the wireless network shown in FIG. 1 is for illustration only. Other embodiments of the wireless network 100 could be used without departing from the scope of the present disclosure.

[0106] As shown in FIG. 1, the wireless network includes a base station (next generation nodeB, gNB or gNodeB) 101, a gNB 102, and a gNB 103. The gNB 101 communicates with the gNB 102 and the gNB 103. The gNB 101 also communicates with at least one network 130, such as the Internet, a proprietary Internet Protocol (IP) network, or other data network.

[0107] The gNB 102 provides wireless broadband access to the network 130 for a first plurality of user equipments (UEs) within a coverage area 120 of the gNB 102. The first plurality of UEs includes a UE 111, which may be located in a small business; a UE 112, which may be located in an enterprise (E); a UE 113, which may be located in a WiFi hotspot (HS); a UE 114, which may be located in a first residence (R1); a UE 115, which may be located in a second residence (R2); and a UE 116, which may be a mobile device (M), such as a cell phone, a wireless laptop, a wireless personal digital assistant (PDA), or the like. The gNB 103 provides wireless broadband access to the network 130 for a second plurality of UEs within a coverage area 125 of the gNB 103. The second plurality of UEs includes the UE 115 and the UE 116, as well as subscriber stations (SS, for example, UEs) 117, 118 and 119. In some embodiments, one or more of the gNBs 101-103 may communicate with each other and with the UEs 111-116 using existing wireless communication techniques, and one or more of the UE 111-119 may communicate directly with each other (e.g., UEs 117-119) using other existing or proposed wireless communication techniques.

[0108] 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 transmit point (TP), transmit-receive point (TRP), an enhanced (or "evolved" base station (eNodeB or eNB), a 5G base station (gNB), a macrocell, a femtocell, a wireless fidelity (WiFi) access point (AP), or other wirelessly enabled devices. Base stations may provide wireless access in accordance with one or more wireless communication protocols, e.g., 3GPP 5G New Radio (NR), Long Term Evolution (LTE), LTE Advanced (LTE-A), high speed packet access (HSPA), Wi-Fi 802.11a / b / g / n / ac, etc. For the sake of convenience, the various names for a base station-type apparatus and functionality are used interchangeably in this patent document to refer to network infrastructure components that provide wireless access to remote terminals. Also, depending on the network type, the term "user equipment"(UE) can refer to any component such as a mobile station (MS), subscriber station (SS), remote terminal, wireless terminal, receive point, or user device. For the sake of convenience, the various names for a user equipment-type device and functionality are used interchangeably in this patent document to refer to remote wireless equipment that wirelessly accesses a BS, whether the UE is a mobile device (such as a mobile telephone or smartphone) or is normally considered a stationary device (such as a desktop computer or vending machine).

[0109] Dotted lines show the approximate extents of the coverage areas 120 and 125, which are shown as approximately circular for the purposes of illustration and explanation only. It should be clearly understood that the coverage areas associated with gNBs, such as the coverage areas 120 and 125, may have other shapes, including irregular shapes, depending upon the configuration of the gNBs and variations in the radio environment associated with natural and man-made obstructions.

[0110] As described in more detail below, one or more of the UEs 111-119 include circuitry, programing, or a combination thereof. In certain embodiments, and one or more of the gNBs 101-103 includes circuitry, programing, or a combination thereof.

[0111] Although FIG. 1 illustrates one example of a wireless network, various changes may be made to FIG. 1. For example, the wireless network could include any number of gNBs and any number of UEs in any suitable arrangement. Also, the gNB 101 could communicate directly with any number of UEs and provide those UEs with wireless broadband access to the network 130. Similarly, each gNB 102-103 could communicate directly with the network 130 and provide UEs with direct wireless broadband access to the network 130. Further, the gNBs 101, 102, and / or 103 could provide access to other or additional external networks, such as external telephone networks or other types of data networks.

[0112] FIG. 2 illustrates an example base station according to embodiments of the present disclosure. The embodiment of the gNB 102 illustrated in FIG. 2 is for illustration only, and the gNBs 101 and 103 of FIG. 1 could have the same or similar configuration. However, gNBs come in a wide variety of configurations, and FIG. 2 does not limit the scope of the present disclosure to any particular implementation of a gNB.

[0113] As shown in FIG 2, the 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. The gNB 102 also includes a controller / processor 205, a memory 206, and a backhaul or network interface 207.

[0114] The RF transceivers 201a-201n receive, from the antennas 200a-200n, incoming RF signals, such as signals transmitted by UEs in the network 100. The RF transceivers 201a-201n down-convert the incoming RF signals to generate intermediate frequency (IF) or baseband signals. The IF or baseband signals are sent to the RX processing circuitry 204, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. The RX processing circuitry 204 transmits the processed baseband signals to the controller / processor 205 for further processing.

[0115] The TX processing circuitry 203 receives analog or digital data (such as voice data, web data, electronic mail, or interactive video game data) from the controller / processor 205. The TX processing circuitry 203 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. The RF transceivers 201a-201n receive the outgoing processed baseband or IF signals from the TX processing circuitry 203 and up-converts the baseband or IF signals to RF signals that are transmitted via the antennas 201a-201n.

[0116] The controller / processor 205 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 205 could control the reception of forward channel signals and the transmission of reverse channel signals by the RF transceivers 201a-201n, the RX processing circuitry 204, and the TX processing circuitry 203 in accordance with well-known principles. The controller / processor 205 could support additional functions as well, such as more advanced wireless communication functions.

[0117] For instance, the controller / processor 205 could support beam forming or directional routing operations in which outgoing signals from multiple antennas 200a-200n are weighted differently to effectively steer the outgoing signals in a desired direction. Any of a wide variety of other functions could be supported in the gNB 102 by the controller / processor 205.

[0118] The controller / processor 205 is also capable of executing programs and other processes resident in the memory 206, such as an operating system (OS). The controller / processor 205 can move data into or out of the memory 206 as required by an executing process.

[0119] The controller / processor 205 is also coupled to the backhaul or network interface 207. The backhaul or network interface 207 allows the gNB 102 to communicate with other devices or systems over a backhaul connection or over a network. The interface 207 could support communications over any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as one supporting 5G, LTE, or LTE-A), the interface 207 could allow the gNB 102 to communicate with other gNBs over a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the interface 207 could allow the gNB 102 to communicate over a wired or wireless local area network or over a wired or wireless connection to a larger network (such as the Internet). The interface 207 includes any suitable structure supporting communications over a wired or wireless connection, such as an Ethernet or RF transceiver.

[0120] The processor 205 may control general operations of the BS 102 according to embodiments of the disclosure. The processor 205 may be implemented by one or more integrated circuit (or circuitry) (IC) chips and may execute various data processings. The processor 205 may include at least one electric circuit, and may execute instructions (or a program, codes, data, etc.) stored in the memory 206, individually, collectively or in any combination thereof. Further, the processor 205 may include a single-core processor or multi-core processor, and may include a processor assembly including a plurality of processing circuits (circuitry) according to a specific implementation scheme.

[0121] The processor 205 may be electrically, operatively, or communicatively coupled to the transceiver 210a-210n to control the transceiver 210a-210n.

[0122] The processor 205 may include at least one processor (or processing circuitry), and the at least one processor may perform the following operations individually, collectively or in any combination thereof. In a specific embodiment, at least a part of the processor 205 may be included in one chip and the other part of the processor 205 may be included in another chip. Otherwise, at least one processor may be included in another component, for example, the transceiver 210a-210n or the memory 206.

[0123] The processor 205 may perform or control or cause an operation of the BS 102 for executing at least one or a combination of methods according to embodiments of the disclosure. For example, the processor 205 may control operations of the BS 102 for generating and transmitting a downlink signal to a UE or processing an uplink signal received from a UE. Otherwise, the BS 102 may transmit or receive a signal to or from a neighboring BS, transfer a signal received from a UE to an upper node of the network, or transmit a signal transferred from an upper node of the network to a UE. To this end, the processor 205 may execute a computer program, codes, or instructions stored in the memory 206, so as to control other components of the BS 102 to enable execution of various operations.

[0124] The memory 206 is coupled to the controller / processor 205. Part of the memory 206 could include a random access memory (RAM), and another part of the memory 206 could include a Flash memory or other read only memory (ROM).

[0125] The memory 206 corresponds to a hardware storage device capable of temporarily or permanently storing information and may include one or more storage media. For example, the memory 206 may include a memory assembly including one or more storage media. For example, the one or more storage media may include permanent memory, such as a hard drive, flash memory, or read-only memory (ROM), semipermanent memory, such as random access memory (RAM), cache memory, or a combination thereof.

[0126] The memory 206 may be electrically, operatively, or communicatively coupled to the processor 205 and may be accessed by the processor 205.

[0127] The memory 206 may store a computer program, codes, or instructions executable by the processor 205. According to an embodiment, a computer program, codes, or instructions executable by the processor 205 may be either stored in a single memory device or separated and distributedly stored in two or more memory devices. By executing the instructions stored in the memory 206, the processor 205 may perform various functions according to an embodiment of the disclosure.

[0128] According to an embodiment of the disclosure, operations of the BS 102 may be caused to be performed based on execution of instructions (or a computer program or codes) stored in the memory 206 by at least one processor (or processing circuitry) configured to execute the same individually, collectively, or in any combination thereof, based on processing circuitry that is not configured to execute instructions, and / or based on components of processing circuitry that is not configured to execute instructions.

[0129] Although FIG. 2 illustrates one example of gNB 102, various changes may be made to FIG. 2. For example, the gNB 102 could include any number of each component shown in FIG. 2. As a particular example, an access point could include a number of interfaces 207, and the controller / processor 205 could support routing functions to route data between different network addresses. As another particular example, while shown as including a single instance of TX processing circuitry 203 and a single instance of RX processing circuitry 204, the gNB 102 could include multiple instances of each (such as one per RF transceiver). Also, various components in FIG. 2 could be combined, further subdivided, or omitted and additional components could be added according to particular needs.

[0130] FIG. 3 illustrates an example user equipment according to embodiments of the present disclosure. The embodiment of the UE 116 illustrated in FIG. 3 is for illustration only, and the UEs 111-115 and 117-119 of FIG. 1 could have the same or similar configuration. However, UEs come in a wide variety of configurations, and FIG. 3 does not limit the scope of the present disclosure to any particular implementation of a UE.

[0131] As shown in FIG. 3, the UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, TX processing circuitry 303, a microphone 304, and receive (RX) processing circuitry 305. The 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 a memory 311. The memory 311 includes an OS 312 and one or more applications 313.

[0132] The RF transceiver 302 receives, from the antenna 301, an incoming RF signal transmitted by a gNB of the network 100. The RF transceiver 302 down-converts the incoming RF signal to generate an IF or baseband signal. The IF or baseband signal is sent to the RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. The RX processing circuitry 305 transmits the processed baseband signal to the speaker 306 (such as for voice data) or to the processor 307 for further processing (such as for web browsing data).

[0133] The TX processing circuitry 303 receives analog or digital voice data from the microphone 304 or other outgoing baseband data (such as web data, e-mail, or interactive video game data) from the processor 307. The TX processing circuitry 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver 302 receives the outgoing processed baseband or IF signal from the TX processing circuitry 303 and up-converts the baseband or IF signal to an RF signal that is transmitted via the antenna 301.

[0134] The processor 307 can include one or more processors or other processing devices and execute the OS 312 stored in the memory 311 in order to control the overall operation of the UE 116. For example, the processor 307 could control the reception of forward channel signals and the transmission of reverse channel signals by the RF transceiver 302, the RX processing circuitry 305, and the TX processing circuitry 303 in accordance with well-known principles. In some embodiments, the processor 307 includes at least one microprocessor or microcontroller.

[0135] The processor 307 is also capable of executing other processes and programs resident in the memory 311, such as processes for CSI reporting on uplink channel. The processor 307 can move data into or out of the memory 311 as required by an executing process. In some embodiments, the processor 307 is configured to execute the applications 313 based on the OS 312 or in response to signals received from gNBs or an operator. The processor 307 is also coupled to the I / O interface 308, which provides the UE 116 with the ability to connect to other devices, such as laptop computers and handheld computers. The I / O interface 308 is the communication path between these accessories and the processor 307.

[0136] The processor 307 may control general operations of the UE 116 according to embodiments of the disclosure. The processor 307 may be implemented by one or more integrated circuit (or circuitry) (IC) chips and may execute various data processings. The processor 307 may include at least one electric circuit, and may execute instructions (or a program, codes, data, etc.) stored in the memory 311, individually, collectively or in any combination thereof. Further, the processor 307 may include a single-core processor or multi-core processor, and may include a processor assembly including a plurality of processing circuits (circuitry) according to a specific implementation scheme.

[0137] The processor 307 may be electrically, operatively, or communicatively coupled to the transceiver 302 to control the antennas 301.

[0138] The processor 307 may include at least one processor (or processing circuitry), and the at least one processor may perform the following operations individually, collectively or in any combination thereof. For example, the processor 307 may include a communication processor (CP) configured to control communication operations and an application processor (AP) configured to control execution of an upper layer (for example, an application layer). In a specific embodiment, at least a part of the processor 307 may be included in one chip and the other part of the processor 307 may be included in another chip. Otherwise, at least one processor may be included in another component, for example, the transceiver 302 or the memory 311.

[0139] The processor 307 may perform or control or cause an operation of the UE 116 for executing at least one or a combination of methods according to embodiments of the disclosure. For example, the processor 307 may control operations of the UE 116 for processing a downlink signal received from a BS or generating and transmitting an uplink signal to a BS. To this end, the processor 307 may execute a computer program, codes, or instructions stored in the memory 311, so as to control other components of the UE 116 to enable execution of various operations.

[0140] The processor 307 is also coupled to the touchscreen display 310. The user of the UE 116 can use the touchscreen display 310 to enter data into the UE 116. The touchscreen display 310 may be a liquid crystal display, light emitting diode display, or other display capable of rendering text and / or at least limited graphics, such as from web sites.

[0141] The memory 311 is coupled to the processor 307. Part of the memory 311 could include RAM, and another part of the memory 311 could include a Flash memory or other ROM.

[0142] The memory 311 corresponds to a hardware storage device capable of temporarily or permanently storing information and may include one or more storage media. For example, the memory 311 may include a memory assembly including one or more storage media. For example, the one or more storage media may include permanent memory, such as a hard drive, flash memory, or read-only memory (ROM), semipermanent memory, such as random access memory (RAM), cache memory, or a combination thereof.

[0143] The memory 311 may be electrically, operatively, or communicatively coupled to the processor 307 and may be accessed by the processor 307.

[0144] The memory 311 may store a computer program, codes, or instructions executable by the processor 307. According to an embodiment, a computer program, codes, or instructions executable by the processor 307 may be either stored in a single memory device or separated and distributedly stored in two or more memory devices. By executing the instructions stored in the memory 311, the processor 307 may perform various functions according to an embodiment of the disclosure.

[0145] According to an embodiment of the disclosure, operations of the UE 116 may be caused to be performed based on execution of instructions (or a computer program or codes) stored in the memory 311 by at least one processor (or processing circuitry) configured to execute the same individually, collectively, or in any combination thereof, based on processing circuitry that is not configured to execute instructions, and / or based on components of processing circuitry that is not configured to execute instructions.

[0146] Although FIG. 3 illustrates one example of UE 116, various changes may be made to FIG. 3. For example, various components in FIG. 3 could be combined, further subdivided, or omitted and additional components could be added according to particular needs. As a particular example, the processor 307 could be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Also, while FIG. 3 illustrates the UE 116 configured as a mobile telephone or smartphone, UEs could be configured to operate as other types of mobile or stationary devices.

[0147] The text and drawings are provided as examples only to help readers understand the present disclosure. They are not intended and should not be interpreted as limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, based on the content disclosed herein, it is obvious to those skilled in the art that modifications to the illustrated embodiments and examples can be made without departing from the scope of the present disclosure.

[0148] A transmission link of a wireless communication system mainly includes: a downlink communication link from a 5G New Radio (NR) gNB to a user equipment (UE), an uplink communication link from a UE to a network, and a sidelink communication link from a UE to a UE.

[0149] In a wireless communication system, such as the current wireless communication system, in order to reduce energy consumption at a terminal side, a Low Power Wake Up Signal (LPWUS) is introduced. When a UE monitors the wake up signal and the wake up signal indicates the UE to monitor a Paging Occasion (PO), the UE expects to monitor the associated PO. A receiver of the UE includes two modules, one is a main wireless communication module (Main Radio, MR) used to receive regular signals / channels transmitted by a base station, the other is a low power wake up signal receiving module (Lower Power Wake Up Receiver, LPWUR) used to receive wake up signals transmitted by the base station. The dedicated module is used to receive the wake up signal, because the LPWUS is a waveform modulated further based on Amplitude Shift Keying (ASK) modulation on the basis of using an Orthogonal Frequency Division Multiplexing (OFDM) based waveform of the existing NR system, the LPWUR can monitor the wake up signal with an extremely low power. Once the UE monitors the wake up signal and the wake up signal indicates the UE to monitor the PO, the LPWUR can trigger the MR to switch from a dormant time to an active time, and monitor an Paging Early Indication (PEI) and / or the PO. Optionally, On-Off Keying (OOK) modulation is a special case of the Amplitude Shift Keying (ASK) modulation. The LPWUR includes two different types of receivers: an OOK-based receiver that performs synchronization and RRM measurement based on a Low Power-Synchronization Signal (LP-SS) and an OFDM-based receiver that performs synchronization and RRM measurement based on a synchronization signal and physical broadcast channel block (SSB).

[0150] Considering that deploying a low power wake up signal on a fixed frequency band contributes to reducing cost and power overhead of the low power wake up signal receiver LR, and a coverage of the LR is larger when the low power wake up signal is deployed on a low frequency band, the wireless communication system may deploy the low power wake up signal on a frequency band different from a frequency band where the UE monitors the PO. Therefore, when the frequency band where the UE monitors the paging occasion and a frequency band for low power wake up signal monitoring are different, how to monitor the low power wake up signal is a problem that needs to be solved.

[0151] Specifically, in the present invention, a method and a device for low power wake up signal monitoring will be introduced. In the embodiment, a wake up signal is used for an exemplary introduction, where the wake up signal includes but is not limited to a low power wake up signal, and the introduced method may also be used for monitoring, configuration and transmission of other signals. In addition, the method of the present invention may be applicable to the case where the low power wake up signal triggers Physical Downlink Control Channel (PDCCH) monitoring in a Radio Resource Control (RRC) idle state and / or inactive state and / or connected state.

[0152] FIG. 4 illustrates a flowchart of a method performed by a UE according to an embodiment of the present disclosure.

[0153] Referring to FIG. 4, at step S401, the UE transmits information related to a first frequency band for paging occasion monitoring. At step 402, the UE receives first configuration information related to first signal for wake up monitoring. Optionally, the first configuration information includes information related to the first frequency band for paging occasion monitoring and a second frequency band for first signal monitoring that is associated with the first frequency band for paging occasion monitoring. At step S403, the UE determines the second frequency band for first signal monitoring based on the first configuration information. At step S404, the UE monitors the first signal based on the determined second frequency band for first signal monitoring.

[0154] FIG. 5 illustrates a flowchart of a method performed by a UE according to an embodiment of the present disclosure. The method performed by the UE according to an embodiment of the present disclosure will be described below with reference to FIG. 5.

[0155] Referring to FIG. 5, at step S501, the UE reports support of receiving frequency band of paging occasion through UE capability. At step 502, the UE determines first configuration information of wake up signal occasion LO and second configuration information of wake up signal monitoring occasion according to SIB configuration, where the first configuration information includes association between frequency band for monitoring wake up signal and frequency band for monitoring paging occasion, and offset from start position of paging frame to end position of LO. At step S503, the UE determines resource of LO based on configuration information and start position of paging frame associated with UE. At step S504, the UE determines, based on resource, time domain position of wake up signal monitoring occasion according to association between UE and wake up signal group and / or subgroup and / or subgroup set, and association between wake up signal group and / or subgroup set and wake up signal monitoring occasion. At step S505, the UE monitors wake up signal based on determined wake up signal monitoring occasion.

[0156] Hereinafter, each step of FIG. 5 will be described in detail.

[0157] A method for the UE to determine a frequency domain location for low power wake up signal monitoring will be described below.

[0158] In an embodiment, the UE reports a supported frequency band for PO monitoring through UE capabilities. Optionally, the frequency band for PO monitoring may be a frequency band selected from X candidates, where X is an integer greater than 1. Optionally, the supported frequency band for PO monitoring reported by the UE may be reported before RRC release. If the UE reports information of the supported frequency band for PO monitoring, the UE determines an associated wake up signal group based on the reported information of the frequency band, and when a condition for enabling wake up signal monitoring is satisfied, on a wake up signal occasion (LPWUS Occasion, LO) corresponding to the associated wake up signal group, the wake up signal is monitored. The condition includes a Reference Signal Received Power (RSRP) and / or a Reference Signal Received Quality (RSRQ) of an SSB of a serving cell measured by the MR being greater than a configured first threshold value, and / or an RSRP and / or an RSRQ of an SSB or an LP-SS of the serving cell measured by the LR being greater than a configured second threshold value; if the UE does not report the information of the supported frequency band for PO monitoring, the UE does not enable wake up signal monitoring. The operation is to consider that if the UE does not report the information of the supported frequency band, since a network is unsure which frequency band the UE monitors PO on, the network will transmit a wake up signal on a wake up signal group associated with each UE_ID. After transmitting the wake up signal, the network transmits a paging message on a paging frame associated with the wake up signal group on each frequency band, even if the UE does not support reception of the paging message on a certain frequency band. At this time, resource overhead of the network is too large, and in order to reduce the resource overhead of the network, if the UE does not report the supported frequency band for PO monitoring, the UE does not enable wake up signal monitoring, and the UE periodically monitors PO and / or Paging Early Indication (PEI).

[0159] In an implementation, the UE may determine an association between a frequency band for wake up signal monitoring and a frequency band for PO monitoring by a method of preconfiguration or predefinition. The method of preconfiguration may be broadcasting through system information such as SIB information. Optionally, the association may be a fixed association, that is, one frequency band for wake up signal monitoring is associated with more than one fixed frequency band for PO monitoring, as defined in Table 1, and the UE may determine the associated frequency band for wake up signal monitoring based on the UE capability of the reported frequency band for PO monitoring. The method can enable the UE to determine the frequency band for wake up signal monitoring through the supported frequency band for PO monitoring, that is, determining a frequency domain location for wake up signal monitoring, and the method can reduce the resource overhead of transmitting the paging message on multiple frequency bands by the network.

[0160] Table 1. association between frequency band for wake up signal monitoring and frequency band for PO monitoring

[0161]

[0162] In an implementation, if the UE reselects the frequency band for PO monitoring, the UE should report a request to update or reselect the frequency band for PO monitoring and / or information related to the updated or reselected frequency band for PO monitoring in an RRC resume request message of MSG3 or in a UL small data transmission (SDT) message. The plan to change the frequency band for PO monitoring by the UE may be but is not limited to the case where the UE hands over or camps to another base station. If the UE reselects the frequency band for PO monitoring, the UE does not expect to monitor the wake up signal, and the UE periodically monitors PO and / or PEI. The operation enables the UE to, after changing the frequency band for PO monitoring, continue to determine the frequency domain location for wake up signal monitoring based on the updated or reselected frequency band of PO, so that the network can transmit the paging message on the updated or reselected frequency band for PO monitoring.

[0163] In an implementation, the UE updates or reselects the frequency band for PO monitoring after the UE receives a message of MSG4 or DL SDT for acknowledging the updating or reselecting of the frequency band for PO monitoring and a time interval T1, where time interval T1 may be preconfigured or predefined. The method enables UEs in the network to use the same time interval to determine a time unit where PO is monitored on the updated or reselected frequency band for PO monitoring, which facilitates the management of UEs by the network.

[0164] In an implementation, after the UE receives the message of MSG4 or DL SDT for acknowledging the updating or reselecting of the frequency band for PO monitoring in slot n on the frequency band for PO monitoring before the update or reselection, the UE expects to periodically monitor the associated PO on the updated or reselected frequency band for PO monitoring after + time interval T2, and / or the UE expects to monitor a wake up signal corresponding to a paging frame where the associated PO is located after a condition for wake up signal monitoring is satisfied, and / or the UE no longer periodically monitors the associated PO, and / or the UE does not expect to monitor the wake up signal until the condition for wake up signal monitoring is satisfied. If there is no associated PO in the current paging cycle after the UE updates or reselects the frequency band for PO monitoring, the UE expects to monitor an associated PO in the next paging cycle, and / or the UE expects to monitor a wake up signal corresponding to a paging frame where the associated PO in the next paging cycle is located after the condition for wake up signal monitoring is satisfied, and / or the UE does not expect to monitor the wake up signal corresponding to the paging frame where the associated PO in the next paging cycle is located until the condition for wake up signal monitoring is satisfied. The time interval T2 includes but is not limited to a Radio Frequency (RF) adjustment time. μor DL SDT carrying the message for acknowledging the updating or reselecting of the frequency band for PO monitoring, and is a number of slots included in one subframe when the configured subcarrier spacing is μUE with a capability of faster frequency band switching can monitor PO on the updated or reselected frequency band for PO monitoring more quickly.

[0165] The method for the UE to determine the time domain location for low power wake up signal monitoring will be described below.

[0166] In an embodiment, the UE determines an end position of an LO through a start position of an associated paging frame and configured one or more offsets and / or RF adjustment time, the offset including but not limited to a low power wake up signal processing time, an MR transition time, an MR time-frequency synchronization time.

[0167] In an implementation, the offset further includes an RF adjustment time.

[0168] In an implementation, the RF adjustment time may be a predefined or preconfigured RF adjustment time, and the UE is required to report the RF adjustment time of the UE before RRC release so that the UE and the network have the same understanding of the end position of the LO.

[0169] In an implementation, the UE determines the end position of the LO through a UE-specific RF adjustment time. If a subgroup to which the UE belongs is associated with a resource after the end position of the LO, the UE does not expect to monitor the wake up signal and / or the UE does not expect to monitor PO associated with the wake up signal, and / or the UE periodically monitors PO. The operation avoids the case where the UE monitors the wake up signal on the resource after the end position of the LO and / or the wake up signal indicates the UE to wake up and the UE cannot be woken up to monitor the associated PO.

[0170] In an implementation, the UE determines the end position of the LO through the UE-specific RF adjustment time. If the subgroup to which the UE belongs is associated with the resource after the end position of the LO, the UE expects to monitor the wake up signal and / or the UE expects to monitor the next PO associated with the wake up signal, and / or the UE no longer monitors a first signal associated with a paging frame where the next paging occasion is located. The operation is suitable for the case where after the end position of the LO, the UE monitors the wake up signal and / or the wake up signal indicates the UE to wake up, but the UE cannot be woken up to monitor the associated PO due to a too long wake up delay. The method enables the UE to still monitor the wake up signal to reduce the power overhead of the UE.

[0171] The method of determining an association between the low power wake up signal group / subgroup / subgroup set and the UE will be described below (in the present application, " / "may be used interchangeably with "and / or".

[0172] In an embodiment, one wake up signal group may be associated with UEs associated with / belonging to all POs with the same radio frame number (SFN) index on all frequency bands for PO monitoring associated with the frequency band for wake up signal monitoring, as shown in Table 2. The radio frame number index includes at least one paging frame. The association between the wake up signal group and the UE may be determined by a paging frame offset, a paging cycle and a number of POs included in one paging cycle that are configured on each frequency band of all frequency bands for PO monitoring, for example, by (SFN + PF_offset) mod T = (T div N) * (UE_ID mod N), where SFN is an SFN index value on each frequency band, PF_offset is a paging frame offset configured separately on each frequency band, T is a paging cycle configured separately on each frequency band, N is a number of POs included in the paging cycle configured separately on each frequency band, and UE_ID is UE-specific UE index calculated by the UE based on a TMSI. Through an association between the SFN index and the UE_ID on each frequency band, UE index with the same SFN index on all frequency bands for PO monitoring associated with the frequency band for wake up signal monitoring is associated with the same wake up signal group. The same wake up signal group may be associated with one or more LOs, and UEs belonging to one wake up signal group monitor the same one or more LOs. If the UE monitors the wake up signal and / or the wake up signal indicates the UE to wake up, the UE monitors an associated PO in a paging frame associated with the one or more LOs on a supported or reported frequency band, as shown in FIG. 6. The operation method enables the associated UEs in the wake up signal group to change as the frequency band for PO monitoring in the network changes, and can implement further subgrouping of the associated UEs on the currently associated frequency band for PO monitoring more flexibly, which facilitates using fewer information bits by the wake up signal to indicate the subgroup to wake up and reduce the resource overhead.

[0173] Table 2. association between frequency band for PO monitoring and wake up signal group

[0174]

[0175] In an embodiment, one wake up signal group may be associated with UEs associated with / belonging to all POs on one paging frame associated with one frequency band for PO monitoring associated with the frequency band for wake up signal monitoring. The operation method enables the UEs in the wake up signal group not to change according to whether other frequency bands for PO monitoring exist in the network, making the operation on the wake up signal group more convenient. The association between one wake up signal group and the UE may be determined by a paging frame offset, a paging cycle, and a number of POs included in the paging cycle that are configured in a frequency band where the UE monitors PO, for example, by (SFN + PF_offset) mod T = (T div N) * (UE_ID mod N). Through an association between the SFN index and the UE_ID on a frequency band where the UE is located, it is determined that 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 of SFN index corresponding to the same paging frame in more than one frequency band for PO monitoring associated with one frequency band for wake up signal monitoring are associated with one wake up signal group set. In a wake up signal group set, wake up signal group index is sorted according to the association between the frequency band for wake up signal monitoring and the frequency band for PO monitoring, in an order of the frequency band for PO monitoring from low to high corresponding to the wake up signal group index from small to large, as shown in Table 3. One wake up signal group set is associated with the same one or more LOs. If the UE monitors the wake up signal and / or the wake up signal indicates wake up signal group index to which the UE belongs, the UE monitors an associated PO in a paging frame associated with one or more LOs on a supported or reported frequency band, as shown in FIG. 7. Since the power consumption of monitoring the wake up signal by the UE is lower than that of monitoring a PDCCH, the operation enables the UE to monitor the wake up signal once in each paging cycle, only monitor the PEI when the wake up signal indicates the UE to wake up, and determine whether to monitor the associated PO. The UE is not required to monitor the PDCCH when it is not indicated to wake up. Therefore, compared with PEI, the method can reduce the power consumption of monitoring the PDCCH by the UE.

[0176] Table 3. association between frequency band for PO monitoring and wake up signal group index

[0177]

[0178] In an embodiment, the UE determines 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 a number of PFs included in a paging cycle configured on the frequency band for PO monitoring where the UE is located, Z is a number of wake up signal subgroups, and Z may be determined by at least one of the following methods:

[0179] o Z is a preconfigured or predefined integer; optionally, a value of Z may be an integer multiple of a configured number X of information bits of the wake up signal or 2 to the power of X;

[0180] o Z is equal to the configured number X of information bits of the wake up signal or 2 to the power of X.

[0181] When each bit information of the wake up signal indicates whether one wake up signal subgroup is woken up, Z is equal to the configured X, and the information bits of the wake up signal from high to low correspond to wake up signal subgroup index from small to large in one wake up signal group respectively. If a bit associated with a wake up signal subgroup corresponding to the UE has a value of "0", the UE does not expect to monitor the associated PO; if the bit associated with the wake up signal subgroup corresponding to the UE has a value of "1", the wake up signal subgroup corresponding to the UE is woken up. When all information bits of the wake up signal indicate whether one wake up signal subgroup is woken up, Z is equal to 2 to the power of X, and the information bits of the wake up signal indicate one wake up signal subgroup index. If the UE detects the wake up signal and / or the wake up signal carries the wake up signal subgroup index, the UE monitors the associated PO, otherwise, the UE does not expect to monitor the associated PO. The operation can make a number of UEs in one wake up signal subgroup smaller. When the network transmits the wake up signal to indicate one UE in one wake up signal subgroup to wake up to receive a paging message, a number of other UEs in the wake up signal subgroup that are woken up at the same time is smaller, thereby reducing the power loss of the UE.

[0182] In an embodiment, in order to further reduce the power loss of the UE, more wake up signal subgroups may 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 X of information bits of one wake up signal or 2 to the power of X, the UE determines a number of subgroup sets based on the number X of information bits of one wake up signal or 2 to the power of X, for example, the UE determines that the number of subgroup sets is L by L = sup(Z / X) or L = sup(Z / 2^X), where sup is rounding up. The UE determines subgroup set index in the associated wake up signal group based on the UE index, and 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 through 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 one 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 monitor the same wake up signal. When each bit information of the wake up signal indicates whether one wake up signal subgroup in the associated subgroup set is woken up, the information bits of the wake up signal from high to low correspond to the wake up signal subgroup index from small to large in the associated subgroup set respectively. If a bit associated with the wake up signal subgroup corresponding to the UE has a value of "0", the UE does not expect to monitor the associated PO; if the bit associated with the wake up signal subgroup corresponding to the UE has a value of "1", the wake up signal subgroup corresponding to the UE is woken up. When all information bits of the wake up signal indicate whether the wake up signal subgroup in one associated subgroup set is woken up, the information bit of the wake up signal indicate one 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 the wake up signal subgroup index, the UE monitors the associated PO, otherwise, the UE does not expect to monitor the associated PO.

[0183] The method of determining the association between the low power wake up signal group / subgroup set and the LO / MO will be described below

[0184] In an embodiment, a UE acquires configuration information of an LO and configuration information of a wake up signal Monitoring Occasion (MO) through an SIB message, where each LO may include multiple wake up signal MOs, and the UE may monitor wake up signals in K*N consecutive MOs or K non-consecutive MOs, where K is a number of MOs where the same and / or different wake up signal information bits are transmitted in the same beam direction, and N is a number of beams where the wake up signal is received. K and N are predefined or preconfigured values, and K and N are integers greater than or equal to 1. The configuration information of the LO includes at least one of the following parameters: one or more minimum time intervals from an end position or a start position of one or more LOs to an end position or a start position of one SFN associated with the LO; a duration of the LO, which may optionally be the maximum duration of the LO. If the UE receives the wake up signal after the maximum duration of the LO or 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: a (time) interval between the first wake up signal MO and the start position or end position of the LO, an interval between two adjacent wake up signal MOs, a duration of the wake up signal MO, a (time) interval between the first wake up signal MO and the start position or end position of the LO in each UE subgroup set, a number or a length (duration) of MOs associated with each UE subgroup set.

[0185] In an embodiment, the UE determines unique one or more LOs through the associated wake up signal group or wake up signal group set, where multiple LOs may be determined by a UE capability with different wake up delays that is reported by the UE. UEs associated with the same wake up signal group or wake up signal group set monitor one or more LOs that are greater than the wake up delay reported by the UE, or the UE monitors an MO in the latest LO that satisfies the wake up delay reported by the UE until a wake up signal is detected and / or the wake up signal indicates a subgroup to which the UE belongs to wake up, or whichever is earlier. A wake up signal may be used to indicate whether a subgroup in the wake up signal group associated with the UE is woken up. Alternatively, a wake up signal may be used to indicate whether a wake up signal group in the wake up signal group set associated with the UE is woken up.

[0186] In an embodiment, the UE determines unique one or more LOs through the associated wake up signal group set, where multiple LOs may be determined by a UE capability with different wake up delays that is reported by the UE. UEs associated with one wake up signal group set monitors one or more LOs that are greater than the wake up delay reported by the UE, or the UE monitors a group of MOs associated with the wake up signal group set index in the latest LO that satisfies the wake up delay reported by the UE, or until a wake up signal is detected and / or the wake up signal indicates that a subgroup to which the UE belongs to wake up, or whichever is earlier. The UE determines a group of multiple consecutive or non-consecutive MOs in unique one or more LOs through the associated wake up signal group set index. A wake up signal may be used to indicate whether subgroups in the wake up signal subgroup set associated with the UE are woken up. The association between the wake up signal group set index and the MO may be association of the wake up signal group set index from small to large to the MO groups from left to right in the LO.

[0187] The behavior of monitoring the wake up signal by the UE will be described below

[0188] In an embodiment, the UE determines a frequency domain location for wake up signal monitoring based on a frequency band reported by a UE capability and an association between a predefined or preconfigured frequency band for wake up signal monitoring and a frequency band for PO monitoring, and the UE determines an end position of the LO through a start position of the associated paging frame and configured one or more offsets and / or RF adjustment time according to configuration by an SIB. The UE determines associated SFN index based on a frequency band reported by the UE capability and a paging frame offset, a paging cycle and a number of POs included in the paging cycle that are configured on the frequency band for PO monitoring, determines a unique associated wake up signal group based on the SFN index, and monitors all LO / MO resources corresponding to a group or subgroup to which the UE belongs based on the association between the wake up signal group or wake up signal group index and the LO / MO and / or the association between the wake up signal subgroup set and the LO / MO, or until a wake up signal is detected and / or the wake up signal indicates a subgroup to which the UE belongs to wake up, or whichever is earlier. If the UE monitors the 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 monitors a PO associated with the UE in a paging frame associated with the corresponding wake up signal group on a supported or reported frequency band, otherwise, the UE does not expect to monitor the associated PO.

[0189] FIG. 8 illustrates a block diagram of a UE 800 according to various embodiments of the present disclosure.

[0190] Referring to FIG. 8, the UE 800 according to various embodiments of the present disclosure 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. The UE 800 may be referred to as the UE 116 in FIG. 3.

[0191] FIG. 9 illustrates a block diagram of a base station 900 according to various embodiments of the present disclosure.

[0192] Referring to FIG. 9, the base station 900 according to various embodiments of the present disclosure 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. The base station 900 may be referred to as the base station 102 in FIG. 2.

[0193] Those skilled in the art will understand that the above illustrative embodiments are described herein and are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein may 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 of the disclosure as generally described herein and shown in the drawings may be arranged, replaced, combined, separated and designed in various different configurations, all of which are contemplated herein.

[0194] Those skilled in the art will understand that the various illustrative logical blocks, modules, circuits, and steps described in the present application may be implemented as hardware, software, or a combination of both. To clearly illustrate this interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above in the form of their functional sets. Whether such function sets are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Technicians may implement the described functional sets in different ways for each specific application, but such design decisions should not be interpreted as causing a departure from the scope of the present application.

[0195] The various illustrative logic blocks, modules, and circuits described in the present application may be implemented or performed by 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 devices, discrete gates or transistor logics, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general purpose processor may be a microprocessor, but in an alternative, 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, more than one microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0196] The steps of the method or algorithm described in the present application may be embodied directly in hardware, in a software module executed by a processor, or in a combination thereof. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, register, hard disk, removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor to enable the processor to read and write information from / to the storage media. In an alternative, the storage medium may be integrated into the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and the storage medium may reside in the user terminal as discrete components.

[0197] In one or more exemplary designs, the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, each function may be stored as one or more pieces of instructions or codes on a computer-readable medium or delivered through it. The computer-readable medium includes both a computer storage medium and a communication medium, the latter including any medium that facilitates the transfer of computer programs from one place to another. The storage medium may be any available medium that can be accessed by a general purpose or special purpose computer. In addition, computer-readable storage media may be provided in the form of non-transitory storage media. The 'non-transitory storage medium' is a tangible device and only means that it does not contain a signal (e.g., electromagnetic waves). This term does not distinguish a case in which data is stored semi-permanently in a storage medium from a case in which data is temporarily stored. For example, the non-transitory recording medium may include a buffer in which data is temporarily stored.

[0198] In conjunction with the accompanying drawings, the description set forth herein describes example methods and apparatuses, and does not represent all examples that may be implemented or that are within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration" not "preferred" or "superior to other examples". The detailed description includes specific details intended to provide an understanding of the described technology. However, it is possible to practice the technology without these specific details. In some cases, well-known structures and devices are illustrated in block diagram form to avoid blurring the concepts of the described examples.

[0199] Although this specification contains a plurality of specific implementation details, these should not be construed as limitations on any disclosure or the scope of the claimed protection, but rather as descriptions of particular features of particular embodiments of particular disclosures. Certain features described in this specification in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable sub-combination. Furthermore, although features may be described above as functioning in certain combinations and even initially being so claimed for protection, in some cases, one or more features from the combination for which protection is claimed may be removed from the combination, and the combination for which protection is claimed may be directed to a sub-combination or a variation of the sub-combination. Any of the above variation embodiments can be utilized independently or in combination with at least one other variation embodiment. The above flowchart(s) illustrate example methods that can be implemented in accordance with the principles of the present disclosure and various changes could be made to the methods illustrated in the flowcharts herein. For example, while shown as a series of steps, various steps in each figure could overlap, occur in parallel, occur in a different order, or occur multiple times. In another example, steps may be omitted or replaced by other steps.

[0200] The above description is only an exemplary implementation of the present invention, and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

[0201] Meanwhile, although specific embodiments of the present disclosure have been described in detail, various modifications may be made without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be defined by the claims and equivalents thereof.

Claims

1.A method performed by a user equipment (UE) in a wireless communication system, comprising:transmitting information related to a first frequency band for paging occasion monitoring;receiving first configuration information related to first signal for wake up monitoring, wherein the first configuration information comprises information related to the first frequency band for paging occasion monitoring and a second frequency band for first signal monitoring that is associated with the first frequency band for paging occasion monitoring;determining the second frequency band for first signal monitoring based on the first configuration information; andmonitoring a first signal based on the determined second frequency band for first signal monitoring.2.The method of claim 1, wherein the second frequency band for first signal monitoring is associated with multiple first frequency bands for paging occasion monitoring.3.The method of claim 1, further comprising:if the UE reselects the first frequency band for paging occasion monitoring, not monitoring the first signal, and periodically monitoring a paging occasion and / or a paging early indication.4.The method of claim 3, further comprising:if the UE receives a message for acknowledging the reselecting of the first frequency band for paging occasion monitoring, applying a third frequency band for paging occasion monitoring after a first time interval.5.The method of claim 4, further comprising, if the UE receives the message for acknowledging the reselecting of the first frequency band for paging occasion monitoring, performing at least one of:monitoring the paging occasion associated with the first signal on the third frequency band for paging occasion monitoring after a second time interval;after a condition for first signal monitoring is satisfied, monitoring a first signal associated with a paging frame in which the paging occasion is located, and / or not periodically monitoring the paging occasion, wherein the condition comprises that a measurement value of a second signal of a serving cell in which the UE is located is greater than a threshold value; ornot monitoring the first signal associated with the paging frame in which the paging occasion is located until the condition for first signal monitoring is satisfied.6.The method of claim 4, further comprising:if there are no paging occasion associated with the first signal in a paging cycle satisfying a second time interval after the UE reselects the first frequency band for paging occasion monitoring, performing at least one of:monitoring the paging occasion associated with the first signal in a next paging cycle;monitoring a first signal associated with a paging frame in which the paging occasion is located in the next paging cycle after a condition for first signal monitoring is satisfied, wherein the condition comprises that a measurement value of a second signal of a serving cell in which the UE is located is greater than a threshold value; ornot monitoring the first signal associated with the paging frame in which the paging occasion is located in the next paging cycle until the condition for first signal monitoring is satisfied.7.The method of claim 1, further comprising:determining a time domain position of a first signal occasion based on a start position of a paging frame in which a paging occasion associated with the UE is located on the first frequency band for paging occasion monitoring and at least one offset.8.The method of claim 7, further comprising:if a subgroup to which the UE belongs is associated with a first signal occasion resource after the time domain location of the first signal occasion, not monitoring the first signal and / or a paging occasion associated with the first signal, and / or periodically monitoring the paging occasion.9.The method of claim 7, further comprising:if a subgroup to which the UE belongs is associated with a first signal occasion resource after the time domain location of the first signal occasion, monitoring the first signal and / or a next paging occasion associated with the first signal, and / or not monitoring a first signal associated with a paging frame in which the next paging occasion is located.10.The method of claim 1, wherein the first signal is used to indicate whether UEs belonging to a first signal group monitor the paging occasion, andwherein the first signal group is associated with UEs belonging to all paging occasions with same radio frame number index on first frequency bands for paging occasion monitoring, where all of the first frequency bands are associated with the second frequency band for first signal monitoring.11.The method of claim 10, wherein the first signal group is associated with UEs belonging to all paging occasions on one paging frame associated with one first frequency band for paging occasion monitoring, where the one first frequency band is associated with the second frequency band for first signal monitoring.12.The method of claim 10, further comprising:determining first signal subgroup index associated with the UE based on UE index, a number of paging frames in a paging cycle, and / or a number of first signal subgroups associated with the UE in the first signal group; ordetermining first signal subgroup set index associated with the UE based on UE index, a number of paging frames in a paging cycle, and / or a number of first signal subgroup sets associated with the UE in the first signal group.13.The method of claim 10, wherein the first signal is further used to indicate whether UEs belonging to a first signal group set monitor the paging occasion, and the method further comprises:determining one or more first signal occasions based on the first signal group or the first signal group set; andmonitoring one or more first signal occasions that are greater than a wake up delay or a first signal monitoring occasion in a latest first signal occasion that satisfies the wake up delay until the first signal is detected and / or the first signal indicates that a subgroup to which the UE belongs is woken up.14.A user equipment (UE) in a wireless communication system, comprising:at least one transceiver; andat least one processor operably coupled to the transceiver,at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor to cause the UE to:transmit information related to a first frequency band for paging occasion monitoring;receive first configuration information related to first signal for wake up monitoring, wherein the first configuration information comprises information related to the first frequency band for paging occasion monitoring and a second frequency band for first signal monitoring that is associated with the first frequency band for paging occasion monitoring;determine the second frequency band for first signal monitoring based on the first configuration information; andmonitor a first signal based on the determined second frequency band for first signal monitoring15.A base station in a wireless communication system, comprising:at least one transceiver; andat least one processor operably coupled to the transceiver,at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor to cause the base station to:receive information related to a first frequency band for paging occasion monitoring; andtransmit first configuration information related to first signal for wake up monitoring, wherein the first configuration information comprises information related to the first frequency band for paging occasion monitoring and a second frequency band for first signal monitoring that is associated with the first frequency band for paging occasion monitoring,wherein the second frequency band for first signal monitoring is determined based on the first configuration information, and a first signal is monitored based on the determined second frequency band for first signal monitoring.

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