Methods and apparatus of paging message management in network slicing environment in mobile communications
By embedding network slice information in paging messages, UE intelligently filters connection attempts, addressing resource wastage and battery consumption in network slicing environments, ensuring efficient data delivery.
Patent Information
- Application Number
- PCT/CN2025/116165
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-08-26
- Filing Date
- 2025-08-21
- Publication Date
- 2026-03-05
AI Technical Summary
Managing paging messages in a network slicing environment to avoid resource wastage and inefficient battery consumption in user equipment (UE) due to futile connection attempts when the UE is outside the supported area of a specific network slice.
Enhancing paging messages with network slice information, such as S-NSSAI, NSAG ID, or PDU session ID, allowing UE to intelligently determine whether to ignore or proceed with connection attempts based on the availability of the intended network slice in its current location.
Conserves UE battery power and network resources by preventing unnecessary connection attempts, ensuring efficient resource utilization and delivery of downlink data only when the UE is within a supported network slice area.
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Figure CN2025116165_05032026_PF_FP_ABST
Abstract
Description
METHODS AND APPARATUS OF PAGING MESSAGE MANAGEMENT IN NETWORK SLICING ENVIRONMENT IN MOBILE COMMUNICATIONSCROSS REFERENCE TO RELATED PATENT APPLICATION (S)
[0001] The present disclosure is part of a non-provisional application claiming the priority benefit of U.S. Patent Application No. 63 / 686,899, filed 26 August 2024, the content of which herein being incorporated by reference in its entirety.TECHNICAL FIELD
[0002] The present disclosure is generally related to mobile communications and, more particularly, to paging message management in a network slicing environment in mobile communications.BACKGROUND
[0003] Unless otherwise indicated herein, approaches described in this section are not prior art to the claims listed below and are not admitted as prior art by inclusion in this section.
[0004] Fifth generation (5G) network architecture developed by the 3rd generation partnership project (3GPP) supports network slicing. Specifically, a common physical infrastructure can be partitioned into multiple slices of logical networks. Different network slices can have different supported features and network function optimizations, and thus can be adapted to different use cases. A specific network slice can be identified by a parameter called single-network slice selection assistance information (S-NSSAI) .
[0005] On the other hand, paging serves as a procedure for locating and notifying user equipment (UE) in an idle or inactive state when network communication is required. If the UE remains in an area that does not support the S-NSSAI, it cannot activate the user plane resources of its protocol data unit (PDU) session associated with that S-NSSAI, according to the current 3GPP standard. Managing paging messages originating from the network within a network slicing environment to avoid resource wastage poses a significant challenge.SUMMARY
[0006] The following summary is illustrative only and is not intended to be limiting in any way. That is, the following summary is provided to introduce concepts, highlights, benefits and advantages of the novel and non-obvious techniques described herein. Select implementations are further described below in the detailed description. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.
[0007] An objective of the present disclosure is to propose solutions or schemes that address the aforementioned issues pertaining to paging message management in a network slicing environment in mobile communications.
[0008] In one aspect, a method may involve an apparatus receiving a paging message comprising a network slice information. The method may also involve the apparatus determining whether to ignore the paging message based on the network slice information.
[0009] In another aspect, an apparatus may comprise a transceiver which, during operation, wirelessly communicates with a network node of a wireless network. The apparatus may also comprise a processor communicatively coupled to the transceiver. The processor, during operation, may perform operations comprising receiving, via the transceiver, a paging message comprising a network slice information. The processor, during operation, may further perform operations comprising determining whether to ignore the paging message based on the network slice information.
[0010] In yet another aspect, a method may involve a network node including a network slice information into a paging message. The method may also involve the network node transmitting the paging message to a user equipment (UE) .
[0011] It is noteworthy that, although description provided herein may be in the context of certain radio access technologies, networks and network topologies such as Long-Term Evolution (LTE) , LTE-Advanced, LTE-Advanced Pro, 5th Generation (5G) , New Radio (NR) , Internet-of-Things (IoT) and Narrow Band Internet of Things (NB-IoT) , Industrial Internet of Things (IIoT) , and 6th Generation (6G) , the proposed concepts, schemes and any variation (s) / derivative (s) thereof may be implemented in, for and by other types of radio access technologies, networks and network topologies. Thus, the scope of the present disclosure is not limited to the examples described herein.BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of the present disclosure. The drawings illustrate implementations of the disclosure and, together with the description, serve to explain the principles of the disclosure. It is appreciable that the drawings are not necessarily in scale as some components may be shown to be out of proportion than the size in actual implementation in order to clearly illustrate the concept of the present disclosure.
[0013] FIG. 1 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0014] FIG. 2A is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0015] FIG. 2B is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0016] FIG. 3 is a block diagram of an example communication system in accordance with an implementation of the present disclosure.
[0017] FIG. 4 is a flowchart of an example process in accordance with an implementation of the present disclosure.
[0018] FIG. 5 is a flowchart of an example process in accordance with an implementation of the present disclosure. DETAILED DESCRIPTION OF PREFERRED IMPLEMENTATIONS
[0019] Detailed embodiments and implementations of the claimed subject matters are disclosed herein. However, it shall be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matters which may be embodied in various forms. The present disclosure may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that description of the present disclosure is thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. In the description below, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations. Overview
[0020] Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and / or solutions pertaining to paging message management in network slicing environment in mobile communications. According to the present disclosure, a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
[0021] FIG. 1 illustrates an example scenario 100 of a communication environment in which various solutions and schemes in accordance with the present disclosure may be implemented. Scenario 100 involves a user equipment (UE) 110 in wireless communication with a wireless network (e.g., an LTE network, a 5G / NR network, an IoT network, or a 6G network) consisting of an access network 120 and a core network 130. The UE 110 may be a smart phone, a wearable device, an IoT device, and a tablet, etc. Alternatively, the UE 110 may be a notebook (NB) or personal computer (PC) inserted or installed with a data card which includes a modem and radio frequency (RF) transceiver (s) to provide the functionality of wireless communication. In one embodiment, the access network 120 is connected to the core network 130 by means of the NG interface, more specifically to a user plane function (UPF) by means of the NG user-plane part (NG-u) , and to an access and mobility management function (AMF) by means of the NG control-plane part (NG-c) . The access network 120 may include a base station (BS) 121 which may be connected to multiple UPFs / AMFs for the purpose of load sharing and redundancy. In addition, the core network may include other entities, such as a session management function (SMF) and a unified data management (UDM) , etc. In some embodiments, the access network 120 may include multiple BSs, each of which may provide communication coverage for a geographic coverage area where communications with the UE 110 are supported.
[0022] In one embodiment, the wireless network in scenario 100 may support network slicing, such as the partial network slice (PNS) feature and / or the network slice area of service (NS-AoS) feature. For the PNS feature, the AMF is configured to create a registration area (RA) supporting a single-network slice selection assistance information (S-NSSAI) within a subset of the RA's tracking areas (TAs) . If a UE has an established protocol data unit (PDU) session with an S-NSSAI included in the partially allowed NSSAI, activation of the user plane resources of the PDU session is permitted solely when the UE resides in a TA listed among those associated with that S-NSSAI. While the PNS feature addresses localized S-NSSAI support within TAs, the NS-AoS feature provides granular geographical availability, often defined by cells, for specific network slices. To be specific, the NS-AoS feature introduces network slices with geographical availability that is not limited by existing TA boundaries. When both the UE and AMF support NS-AoS, the AMF may configure the UE with S-NSSAI location validity information. This applies to S-NSSAIs not supported across entire TAs and is defined by a list of cell global identities (CGIs) . If the S-NSSAI is in the partially allowed NSSAI or in the allowed NSSAI and the UE is in a cell within the RA but outside the NS-AoS of the S-NSSAI, the UE is prohibited from activating user plane resources for any already established PDU session with that S-NSSAI.
[0023] In the present disclosure, when the UE is in idle mode and the AMF needs to page the UE for downlink data associated with an S-NSSAI operating under PNS or NS-AoS features, the UE will not unconditionally initiate a connection request to the network. Instead, the UE may determine whether to ignore or disregard the paging message based on network slice information provided by the paging message. Specifically, the paging message is extended to include the network slice information, which may be one or a combination of an S-NSSAI value, a network slice access stratum (AS) group (NSAG) identity (ID) , a PDU session ID, or another identifier associated with the S-NSSAI of the downlink data. In one example, the network slice information may be included in the paging record element (e.g., PagingRecord) of the paging message; however, the present disclosure is not limited thereto.
[0024] FIGs. 2A and 2B are diagrams depicting example scenarios of paging message management in a network slicing environment in accordance with implementations of the present disclosure. As shown in scenario 200a of FIG. 2A, upon receiving a paging message, the UE may determine whether to ignore or disregard it based on the network slice information included therein. The UE may ignore or disregard the paging message if its current area (e.g., the current cell or the current TA) does not support the S-NSSAI of the downlink data, or if it is not in an allowed area of a network slice. This proactive assessment by the UE, leveraging the S-NSSAI value and / or other network slice information embedded in, for example, the PagingRecord element, prevents the device from initiating a futile connection attempt in an area where the intended network slice service is unavailable. Such an attempt would otherwise consume valuable battery power for the UE and squander network signaling resources for the AMF and other network elements.
[0025] As illustrated in scenario 200b of FIG. 2B, the UE's response to a paging message is also intelligently conditional. While it might ignore or disregard a paging message under certain circumstances (as shown in scenario 200a) , it may also intelligently proceed with connection establishment. Specifically, upon receiving a paging message, the UE evaluates the embedded network slice information. If this information indicates that its current geographical area, be it the current cell or the current TA, supports the S-NSSAI associated with the downlink data, the UE is then enabled to take action. Alternatively, if the network slice information confirms that the UE is located within the designated allowed area for that specific network slice, it will likewise proceed. In either of these affirmative cases, the UE is permitted to initiate a service request procedure. This action aims to activate the user plane connection for an already established PDU session, facilitating the delivery of the waiting downlink data and ensuring efficient resource utilization by avoiding unnecessary connection attempts outside a supported network slice.
[0026] To facilitate paging management in mobile communication networks, the paging messages are enhanced to carry critical network slice information. This extension includes the S-NSSAI value, NSAG ID, PDU session ID, or other relevant identifiers that are associated with the S-NSSAI of the downlink data triggering the page. Upon receiving such a paging message, the UE performs a crucial preliminary check. Specifically, if the UE's current serving cell or TA does not support the S-NSSAI related to the downlink data, as determined by evaluating the S-NSSAI value, NSAG ID, PDU Session ID, or other identifiers present in the received paging message, the UE will autonomously ignore the paging message. This intelligent filtering mechanism prevents the UE from initiating unnecessary connection attempts in areas where the desired network slice service is unavailable, thereby conserving both UE battery power and network signaling resources. Illustrative Implementations
[0027] FIG. 3 illustrates an example communication system 300 having an example communication apparatus 310 and an example network apparatus 320 in accordance with an implementation of the present disclosure. Each of communication apparatus 310 and network apparatus 320 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to paging message management in network slicing in mobile communications, including scenarios / schemes described above as well as process 400 and process 500 described below.
[0028] Communication apparatus 310 may be a part of an electronic apparatus, which may be a UE such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus, or a computing apparatus. For instance, communication apparatus 310 may be implemented in a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing equipment such as a tablet computer, a laptop computer, or a notebook computer. Communication apparatus 310 may also be a part of a machine type apparatus, which may be an IoT, NB-IoT, or IIoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a wire communication apparatus or a computing apparatus. For instance, communication apparatus 310 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center. Alternatively, communication apparatus 310 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction set computing (RISC) processors, or one or more complex-instruction-set-computing (CISC) processors. Communication apparatus 310 may include at least some of those components shown in FIG. 3 such as a processor 312, for example. Communication apparatus 310 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and / or user interface device) , and, thus, such component (s) of communication apparatus 310 are neither shown in FIG. 3 nor described below in the interest of simplicity and brevity.
[0029] Network apparatus 320 may be a part of a network apparatus, which may be a network node such as a satellite, a base station, a small cell, a router, a gateway, or other network element. For instance, network apparatus 320 may be implemented in an eNodeB in an LTE network, in a gNB in a 5G / NR, IoT, NB-IoT or IIoT network or in a satellite or base station in a 6G network. In some example, network apparatus 320 may be implemented in a core network device such as AMF. Alternatively, network apparatus 320 may be implemented in the form of one or more IC chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, or one or more RISC or CISC processors. Network apparatus 320 may include at least some of those components shown in FIG. 3 such as a processor 322, for example. Network apparatus 320 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and / or user interface device) , and, thus, such component (s) of network apparatus 320 are neither shown in FIG. 3 nor described below in the interest of simplicity and brevity.
[0030] In one aspect, each of processor 312 and processor 322 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though a singular term “aprocessor” is used herein to refer to processor 312 and processor 322, each of processor 312 and processor 322 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure. In another aspect, each of processor 312 and processor 322 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and / or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure. In other words, in at least some implementations, each of processor 312 and processor 322 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including paging message management in a network slicing environment in accordance with various implementations of the present disclosure.
[0031] In some implementations, communication apparatus 310 may also include a transceiver 316 coupled to processor 312 and capable of wirelessly transmitting and receiving data. In some implementations, communication apparatus 310 may further include a memory 314 coupled to processor 312 and capable of being accessed by processor 312 and storing data therein. In some implementations, network apparatus 320 may also include a transceiver 326 coupled to processor 322 and capable of wirelessly transmitting and receiving data. In some implementations, network apparatus 320 may further include a memory 324 coupled to processor 322 and capable of being accessed by processor 322 and storing data therein. Accordingly, communication apparatus 310 and network apparatus 320 may wirelessly communicate with each other via transceiver 316 and transceiver 326, respectively.
[0032] To aid better understanding, the following description of the operations, functionalities and capabilities of each of communication apparatus 310 and network apparatus 320 is provided in the context of a mobile communication environment in which communication apparatus 310 is implemented in or as a communication apparatus or a UE and network apparatus 320 is implemented in or as a network node of a communication network. Illustrative Processes
[0033] FIG. 4 illustrates an example process 400 in accordance with an implementation of the present disclosure. Process 400 may be an example implementation of above scenarios / schemes, whether partially or completely, with respect to paging message management in a network slicing environment of the present disclosure. Process 400 may represent an aspect of implementation of features of communication apparatus 310. Process 400 may include one or more operations, actions, or functions as illustrated by one or more of blocks 410 to 420. Although illustrated as discrete blocks, various blocks of process 400 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 400 may be executed in the order shown in FIG. 4 or, alternatively, in a different order. Process 400 may be implemented by communication apparatus 310 or any suitable UE or machine type devices. Solely for illustrative purposes and without limitation, process 400 is described below in the context of communication apparatus 310. Process 400 may begin at block 410.
[0034] At block 410, process 400 may involve processor 312 of communication apparatus 310 receiving, via transceiver 316, a paging message comprising a network slice information. For example, the paging message may be sent from a network node (e.g., network apparatus 320) . Process 400 may proceed from block 410 to block 420.
[0035] At block 420, process 400 may involve processor 312 of communication apparatus 310 determining whether to ignore the paging message based on the network slice information.
[0036] In some implementations, process 400 may involve processor 312 of communication apparatus 310 ignoring the paging message in an event that the apparatus is not in an allowed area of a network slice based on the network slice information.
[0037] In some implementations, process 400 may involve processor 312 of communication apparatus 310 ignoring the paging message in an event that a current area of the apparatus does not support an S-NSSAI of downlink data based on the network slice information. The current area is, for example, a current cell or a current TA.
[0038] In some implementations, process 400 may involve processor 312 of communication apparatus 310 performing a service request procedure in an event that the apparatus is in an allowed area of a network slice based on the network slice information.
[0039] In some implementations, process 400 may involve processor 312 of communication apparatus 310 performing a service request procedure in an event that a current area of the apparatus supports an S-NSSAI of downlink data based on the network slice information. The current area may be a current cell or a current TA.
[0040] In some implementations, the network slice information may include one or a combination of an S-NSSAI value, an NSAG ID, a PDU session ID, and an ID associated with S-NSSAI of downlink data.
[0041] In some implementations, the network slice information is included in a paging record element of the paging message.
[0042] FIG. 5 illustrates an example process 500 in accordance with an implementation of the present disclosure. Process 500 may be an example implementation of above scenarios / schemes, whether partially or completely, with respect to paging message management in network slicing environment in mobile communications. Process 500 may represent an aspect of implementation of features of network apparatus 320. Process 500 may include one or more operations, actions, or functions as illustrated by one or more of blocks 510 to 520. Although illustrated as discrete blocks, various blocks of process 500 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 500 may be executed in the order shown in FIG. 5 or, alternatively, in a different order. Process 500 may be implemented by network apparatus 320 or any base stations or network nodes (e.g., AMF) . Solely for illustrative purposes and without limitation, process 500 is described below in the context of network apparatus 320. Process 500 may begin at block 510.
[0043] At block 510, process 500 may involve processor 322 of network apparatus 320 including a network slice information into a paging message. Process 500 may proceed from block 510 to block 520.
[0044] At block 520, process 500 may involve processor 322 transmitting, via transceiver 326, the paging message to a UE (e.g., the communication apparatus 310) .
[0045] In some implementations, the network slice information may include one or a combination of an S-NSSAI value, an NSAG ID, a PDU session ID, and an ID associated with S-NSSAI of downlink data.
[0046] In some implementations, the network slice information is included in a paging record element of the paging message. Additional Notes
[0047] The herein-described subject matter sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected" , or "operably coupled" , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably couplable" , to each other to achieve the desired functionality. Specific examples of operably couplable include but are not limited to physically mateable and / or physically interacting components and / or wirelessly interactable and / or wirelessly interacting components and / or logically interacting and / or logically interactable components.
[0048] Further, with respect to the use of substantially any plural and / or singular terms herein, those having skill in the art can translate from the plural to the singular and / or from the singular to the plural as is appropriate to the context and / or application. The various singular / plural permutations may be expressly set forth herein for sake of clarity.
[0049] Moreover, it will be understood by those skilled in the art that, in general, terms used herein, and especially in the appended claims, e.g., bodies of the appended claims, are generally intended as “open” terms, e.g., the term “including” should be interpreted as “including but not limited to, ” the term “having” should be interpreted as “having at least, ” the term “includes” should be interpreted as “includes but is not limited to, ” etc. It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to implementations containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an, " e.g., “a” and / or “an” should be interpreted to mean “at least one” or “one or more; ” the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should be interpreted to mean at least the recited number, e.g., the bare recitation of "two recitations, " without other modifiers, means at least two recitations, or two or more recitations. Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. In those instances where a convention analogous to “at least one of A, B, or C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. It will be further understood by those within the art that virtually any disjunctive word and / or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B. ”
[0050] From the foregoing, it will be appreciated that various implementations of the present disclosure have been described herein for purposes of illustration, and that various modifications may be made without departing from the scope and spirit of the present disclosure. Accordingly, the various implementations disclosed herein are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
Claims
1.A method, comprising:receiving, by a processor of an apparatus, a paging message comprising a network slice information; anddetermining, by the processor, whether to ignore the paging message based on the network slice information.2.The method of Claim 1, further comprising:ignoring, by the processor, the paging message in an event that the apparatus is not in an allowed area of a network slice based on the network slice information.3.The method of Claim 1, further comprising:ignoring, by the processor, the paging message in an event that a current area of the apparatus does not support a single-network slice selection assistance information (S-NSSAI) of downlink data based on the network slice information.4.The method of Claim 3, wherein the current area comprises a current cell or a current tracking area (TA) .5.The method of Claim 1, further comprising:performing, by the processor, a service request procedure in an event that the apparatus is in an allowed area of a network slice based on the network slice information.6.The method of Claim 1, further comprising:performing, by the processor, a service request procedure in an event that a current area of the apparatus supports a single-network slice selection assistance information (S-NSSAI) of downlink data based on the network slice information.7.The method of Claim 6, wherein the current area comprises a current cell or a current tracking area (TA) .8.The method of Claim 1, wherein the network slice information comprises one or a combination of a single-network slice selection assistance information (S-NSSAI) value, a network slice access stratum (AS) group (NSAG) identity (ID) , a protocol data unit (PDU) session ID, and an ID associated with S-NSSAI of downlink data.9.The method of Claim 1, wherein the network slice information is included in a paging record element of the paging message.10.An apparatus, comprising:a transceiver which, during operation, communicates wirelessly; anda processor communicatively coupled to the transceiver such that, during operation, the processor performs operations comprising:receiving, via the transceiver, a paging message comprising a network slice information; anddetermining whether to ignore the paging message based on the network slice information.11.The apparatus of Claim 10, wherein during operation, the processor further performs operations comprising:ignoring the paging message in an event that the apparatus is not in an allowed area of a network slice based on the network slice information.12.The apparatus of Claim 10, wherein during operation, the processor further performs operations comprising:ignoring the paging message in an event that a current area of the apparatus does not support a single-network slice selection assistance information (S-NSSAI) of downlink data based on the network slice information.13.The apparatus of Claim 12, wherein the current area comprises a current cell or a current tracking area (TA) .14.The apparatus of Claim 10, wherein during operation, the processor further performs operations comprising:performing a service request procedure in an event that the apparatus is in an allowed area of a network slice based on the network slice information.15.The apparatus of Claim 10, wherein during operation, the processor further performs operations comprising:performing a service request procedure in an event that a current area of the apparatus supports a single-network slice selection assistance information (S-NSSAI) of downlink data based on the network slice information.16.The apparatus of Claim 15, wherein the current area comprises a current cell or a current tracking area (TA) .17.The apparatus of Claim 10, wherein the network slice information comprises one or a combination of a single-network slice selection assistance information (S-NSSAI) value, a network slice access stratum (AS) group (NSAG) identity (ID) , a protocol data unit (PDU) session ID, and an ID associated with S-NSSAI of downlink data.18.The apparatus of Claim 10, wherein the network slice information is included in a paging record element of the paging message.19.A method, comprising:including, by a processor of a network node, a network slice information into a paging message; andtransmitting, by the processor, the paging message to a user equipment (UE) .20.The method of Claim 19, wherein:the network slice information comprises one or a combination of a single-network slice selection assistance Information (S-NSSAI) value, a network slice access stratum (AS) group (NSAG) identity (ID) , a protocol data unit (PDU) session ID, and an ID associated with S-NSSAI of downlink data; orthe network slice information is included in a paging record element of the paging message.
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