WO2019148398A1 - 寻呼方法和设备 - Google Patents

寻呼方法和设备 Download PDF

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Publication number
WO2019148398A1
WO2019148398A1 PCT/CN2018/074836 CN2018074836W WO2019148398A1 WO 2019148398 A1 WO2019148398 A1 WO 2019148398A1 CN 2018074836 W CN2018074836 W CN 2018074836W WO 2019148398 A1 WO2019148398 A1 WO 2019148398A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
paging
network device
network
access network
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Application number
PCT/CN2018/074836
Other languages
English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP18845431.8A priority Critical patent/EP3541128B1/en
Priority to PCT/CN2018/074836 priority patent/WO2019148398A1/zh
Priority to CN201880003461.0A priority patent/CN109691194B/zh
Priority to US16/329,635 priority patent/US11012971B2/en
Publication of WO2019148398A1 publication Critical patent/WO2019148398A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication

Definitions

  • Embodiments of the present application relate to the field of communications, and more particularly, to paging methods and devices.
  • a paging message is transmitted on a paging moment (Paging Occasion, PO) in a paging radio frame (PF).
  • Paging Occasion PO
  • PF paging radio frame
  • the terminal device may support multiple network slices. Therefore, how to perform paging message transmission on the terminal device based on the network slice of the terminal device becomes an urgent problem to be solved.
  • the embodiment of the present application provides a paging method and device, which can perform paging message transmission on a terminal device based on a network slice of the terminal device.
  • a paging method comprising: a network device sending a paging message to the terminal device based on at least one network slice used by the terminal device.
  • the network device performs paging on the terminal device based on the network slice of the terminal device, which can reduce the paging signaling overhead and prevent the terminal device from frequently interpreting the paging not belonging to itself. Message.
  • the network device is a core network device, and the network device sends a paging message to the terminal device based on the at least one network slice used by the terminal device, including: if the delay requirement is less than a threshold And the core network device determines, in the at least one network slice used by the terminal device, a first network slice that needs to be preferentially paged, and preferentially passes the access network device that supports the first network slice. Sending a paging message to the terminal device.
  • the core network device selects a network slice that needs to be preferentially paged through at least one network slice used by the terminal device, and preferentially passes the access network device supporting the network slice to the terminal.
  • the device performs paging, thereby improving paging efficiency and reducing the overhead of paging signaling.
  • the method further includes: the core network device sending a paging message to the terminal device by using an access network device that supports the second network slice and does not support the first network slice .
  • the first network slice is: a network slice supported by an access network device where the terminal device last established a service, and an access network where the terminal device performs regional update.
  • the network device is a core network device, and the network device sends a paging message to the terminal device based on the at least one network slice used by the terminal device, including: if the delay requirement is greater than a threshold And the core network device sends a paging message to the terminal device by using each access network device that supports the at least one network slice.
  • the network device is an access network device, and the network device sends a paging message to the terminal device based on the at least one network slice used by the terminal device, including: the access network Determining, according to the at least one network slice used by the terminal device, and the correspondence between the plurality of network slices and the plurality of paging packets, determining, by the terminal device, at least one corresponding to the at least one network slice a paging packet; the access network device sends a paging message to the terminal device based on a paging packet to which the terminal device belongs.
  • the access network device sends a paging message to the terminal device based on the paging packet to which the terminal device belongs, including: the access network device is in the at least one homing In the call packet, selecting a target paging packet to be paged, and sending a paging message to the terminal device of the target paging packet;
  • the method further includes: the access network device sending indication information to the terminal device, where the indication information is used to indicate the target paging packet.
  • the access network device selects a network slice that needs to be preferentially paged in at least one network slice used by the terminal device, and preferentially sends a page to the terminal device supporting the network slice. Transmitting, by the indication information, the network slice to the terminal device, so that the terminal device determines that the network slice indicated by the indication information is supported by the terminal device, and receives a paging message sent by the network device for the network slice, so that different slices are
  • the terminal device can still determine whether or not its own paging message is sent, thereby avoiding frequent interpretation of paging messages that do not belong to itself.
  • the paging time PO used by the access network device to send a paging message to a terminal device of a different paging packet is different.
  • the access network device sends the paging message to the terminal device of the different paging group to use the same PO.
  • the access network device uses different POs for sending paging messages to identify different terminal devices.
  • the method further includes: the access network device sending system information to the terminal device, where the system information carries a plurality of paging packets and a plurality of network slices Represent the correspondence.
  • the system information further includes information about the multiple cells.
  • a second aspect provides a paging method, including: receiving, by a terminal device, a paging message sent by an access network device based on at least one network slice used by the terminal device.
  • the terminal device receives the paging message sent by the network device based on the network slice used by the terminal device, and can reduce the paging signaling overhead and avoid the terminal device compared to the paging message sent by the receiving network device to all network slices simultaneously. Frequently interpret paging messages that are not your own.
  • the terminal device receives, according to the at least one network slice used by the terminal device, a paging message sent by the access network device, where the terminal device is based on the terminal device Determining at least one network slice, and a correspondence between the plurality of network slices and the plurality of paging packets, determining at least one paging packet corresponding to the at least one network slice to which the terminal device belongs; the terminal device receiving The indication information sent by the access network device, the indication information is used to indicate a target paging packet in the at least one paging packet; the terminal device receives a paging message sent by the access network device, where The paging message is a paging message sent by the access network device to the terminal device of the target paging packet.
  • the access network device selects a network slice that needs to be preferentially paged, and sends a paging message to the terminal device supporting the network slice, and indicates the network slice, so that the network slice used by the terminal device
  • the paging message sent by the access network is detected, so that the terminal device can receive the paging message based on different network slices used by the terminal device, thereby avoiding frequently interpreting the paging not belonging to itself.
  • the terminal device of different paging packets receives different POs used by the paging message sent by the access network device.
  • the terminal devices of different paging groups receive the same PO used by the paging message sent by the access network device.
  • the POs used by the different terminal devices to receive the paging message sent by the access network device are different.
  • the method further includes: receiving, by the terminal device, system information sent by the access network device, where the system information carries a plurality of paging packets and a plurality of network slices The corresponding relationship.
  • the system information further includes information about the multiple cells.
  • a network device is provided, the network device being operative to perform the operations of the first node in the first aspect or any optional implementation of the first aspect.
  • the network device may comprise a modular unit for performing the operations of the network device in the first aspect or any of the possible implementations of the first aspect described above.
  • a terminal device which can perform the operations of the first node in any of the optional implementations of the second aspect or the second aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the second aspect or the second aspect described above.
  • a network device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the terminal device to implement the terminal provided by the fourth aspect device.
  • a system chip in a seventh aspect, includes an input interface, an output interface, a processor, and a memory, the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The method of any of the first aspect or any of the possible implementations of the first aspect.
  • a system chip in an eighth aspect, includes an input interface, an output interface, a processor, and a memory, the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing A method in any of the possible implementations of the second aspect or the second aspect.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the first aspect or the first aspect of the first aspect.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the above-described second or second aspect of the second aspect.
  • FIG. 1 is a schematic structural diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a paging method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a paging method according to another embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a system chip of an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UPD Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 100 can be a device that communicates with a terminal device.
  • Network device 100 can provide communication coverage for a particular geographic area and can communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • D2D device to device communication
  • D2D device to device
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
  • network entities such as a network controller, a mobility management entity, and the like.
  • the terminal device may support multiple network slices, and paging paging is expensive if paging is performed for each network slice.
  • the terminal device may frequently interpret the download control information (DCI) or even the paging message that does not belong to itself.
  • DCI download control information
  • the network device performs paging on the terminal device based on the network slice of the terminal device, thereby reducing the overhead of the paging signaling, and avoiding the terminal device frequently interpreting the paging message that does not belong to itself.
  • FIG. 2 is a schematic flowchart of a paging method according to an embodiment of the present application.
  • the network device shown in FIG. 2 may be, for example, the network device 110 shown in FIG. 1, which may be an access network device such as a base station, or a core network device such as access and mobility management functions (Access and Mobility). Management Function, AMF).
  • the paging method 200 includes:
  • Step 210 The network device sends a paging message to the terminal device based on the at least one network slice used by the terminal device.
  • the network device performs paging on the terminal device based on the network slice of the terminal device, which can reduce the paging signaling overhead and prevent the terminal device from frequently interpreting the paging not belonging to itself.
  • the message saves the power consumption of the terminal device.
  • the network slice is also simply referred to as a slice in the embodiment of the present application.
  • the slice can be any of the following types of slices: Enhanced Mobile Broadband (eMBB) slices, Ultra Reliable & Low Latency Communication (URLLC) slices, and Internet of Things (IoT) slices. .
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra Reliable & Low Latency Communication
  • IoT Internet of Things
  • Step 210 is described below for each of the two cases.
  • the network device is a core network device. That is, optimization on the core network side.
  • the network device sends a paging message to the terminal device based on the at least one network slice used by the terminal device, where: if the delay request is less than a threshold, the core network device is used by the terminal device. And determining, by the at least one network slice, a first network slice that needs to be preferentially paged, and preferentially sending a paging message to the terminal device by using an access network device that supports the first network slice.
  • the network device sends a paging message to the terminal device based on the at least one network slice used by the terminal device, including: if the delay request is greater than a threshold, the core network device simultaneously supports the Each access network device of at least one network slice sends a paging message to the terminal device.
  • the core network device selects a network slice that needs to be preferentially paged in at least one network slice used by the terminal device, and preferentially supports the connection of the network slice.
  • the network access device pages the terminal device, thereby improving paging efficiency and reducing the overhead of paging signaling.
  • the method further includes: the core network device sending a paging message to the terminal device by using an access network device that supports the second network slice and does not support the first network slice.
  • the core network device After the core network device pages the terminal device by the access network device supporting the first network slice, if the terminal device is not paged, the core network device can support the second network slice.
  • the access network device pages the terminal device.
  • the The access network device sends a paging message to the terminal device, and then, when paging to the terminal device for the second network slice, the paging message is not sent to the access network device to avoid duplicate Paging, reducing the overhead of paging signaling.
  • the first network slice that is preferentially paged may be a network slice supported by the access network device where the terminal device last established the service; and the network supported by the access network device where the terminal device performs the area update Slice, or the highest priority network slice.
  • the core network device can obtain at least one slice supported by the terminal device, for example, by using slice information registered by the terminal device in the core network.
  • the core network device can obtain an access network device for performing area update by the terminal device by using an area update message.
  • the slice registered by the terminal device in the core network device includes slice 1, slice 2 and slice 3, the core network device is connected with the base station 1, the base station 2 and the base station 3, and the base station 1 supports slice 1, and the base station 2 supports slice 1 and slice 2, base station 3 supports slice 3.
  • the core network device can simultaneously page the terminal device through the base station 1, the base station 2, and the base station 3, that is, the core network simultaneously pages for three slices.
  • the core network device may select one of the slice 1, slice 2, and slice 3 to preferentially page, for example, select slice 1 to preferentially page, at this time, due to the base station Both the base station 2 and the base station 2 support the slice 1, so the core network device preferentially pages to the terminal device through the base station 1 and the base station 2 supporting the slice 1.
  • the core network device can perform the second paging.
  • the paging message can be sent to the base station supporting the slice 2, so that the base station supporting the slice 2 can page the terminal device.
  • the core network device since the base station 2 supports the slice 1 and also supports the slice 2, the core network device has previously made a paging to the terminal device through the base station supporting the slice 1, that is, the base station 2 has already performed the terminal device. The paging is performed. Therefore, when the core network device needs to perform the second paging by the base station supporting the slice 2, it is unnecessary to page the base station 2.
  • the base station 3 supporting the slice 3 can be paged to the terminal device.
  • the network device is an access network device. That is, optimization is performed on the access network side.
  • the network device sends a paging message to the terminal device based on the at least one network slice used by the terminal device, where the access network device selects to be paged in the at least one paging packet.
  • Target paging the packet and sending a paging message to the terminal device of the target paging packet;
  • the method further includes: the access network device sending indication information to the terminal device, where the indication information is used to indicate the target paging packet.
  • the access network device performs paging to the terminal device
  • the network slice that needs to be preferentially paged is selected in at least one network slice used by the terminal device, and preferentially supports the network slice.
  • the terminal device sends a paging message, and indicates the network slice to the terminal device by using the indication information, so that the terminal device determines that it supports the network slice indicated by the indication information, and receives a paging message sent by the network device for the network slice. Therefore, when the POs used by the differently sliced terminal devices overlap, the terminal device can still determine whether its own paging message is sent, thereby avoiding frequent interpretation of paging messages that are not belonging to itself.
  • the POs used by the access network device to send paging messages to different terminal devices may be the same or different.
  • the paging moments PO used by the access network device to send paging messages to terminal devices of different paging packets may be the same or different.
  • the PO used by the paging message of the terminal device may be based on the identity of the terminal device (UE-ID), such as a truncated International Mobile Subscriber Identification Number (IMSI), and some parameters of the system broadcast.
  • UE-ID identity of the terminal device
  • IMSI International Mobile Subscriber Identification Number
  • P-RNTI Paging Radio Network Temporary Identity
  • the paging message is received on the Physical Downlink Shared Channel (PDSCH) according to the decoding result.
  • the paging message includes the identifier information of the upper layer terminal device, such as a Temporary Mobile Subscriber Identity (TSMI), which can be used by the terminal device to determine whether it needs to respond to the paging message sent by the network device.
  • TSMI Temporary Mobile Subscriber Identity
  • the terminal device supporting slice 1 belongs to paging packet 1
  • the terminal device supporting slice 2 belongs to paging packet 2.
  • the terminal device 1 supports slice 1 belonging to paging packet 1
  • terminal device 2 supports slice 2, belonging to paging packet 2. If the POs used by the terminal device 1 and the terminal device 2 for receiving the paging message are the same PO, then the access network device is paged based on the slice supported by the terminal device, so if the PO is currently
  • the paging message is the paging message sent by the access network device to the terminal device of the paging packet 1.
  • the terminal device 1 when it finds itself and belongs to the paging packet 1, it will detect its own paging message on the PO, and when the terminal device 2 receives the indication information indicating the paging packet 1 sent by the access network device, it finds itself and It does not belong to the paging packet 1, so it will not detect its own paging message on the PO, thereby avoiding the terminal device 2 frequently interpreting the paging message that does not belong to itself.
  • the indication information indicating the paging packet 2 is sent, so that when the terminal device 2 receives the indication information indicating the paging packet 2,
  • the PO detects its own paging message.
  • the order in which the access network device pages the terminal devices of the paging packet 1 and the paging packet 2 is not limited in this application.
  • the terminal device of the paging packet corresponding to the network slice with high priority may be preferentially paged according to the priorities of the multiple network slices.
  • the method further includes: the access network device sends system information to the terminal device, where the system information carries the correspondence between the plurality of paging packets and the plurality of network slices.
  • the access network device may also configure the correspondence between the paging packet and the network slice to the terminal device by using dedicated signaling.
  • the system information further includes information about the multiple cells.
  • the terminal device may enter a connection state when entering a cell to obtain the correspondence between the paging packet and the network slice.
  • FIG. 3 is a schematic flowchart of a paging method according to an embodiment of the present application.
  • the terminal device shown in Fig. 3 can be, for example, the terminal device 120 shown in Fig. 1.
  • the paging method 300 includes:
  • Step 210 The terminal device receives a paging message sent by the access network device based on the at least one network slice used by the terminal device.
  • the terminal device receives the paging message sent by the network device based on the network slice used by the terminal device, and can reduce the paging signaling overhead and avoid the terminal device compared to the paging message sent by the receiving network device to all network slices simultaneously. Frequently interpret paging messages that are not your own.
  • the terminal device receives, according to the at least one network slice used by the terminal device, a paging message sent by the access network device, where the terminal device is based on the at least one network slice used by the terminal device.
  • Corresponding relationship between the plurality of network slices and the plurality of paging packets determining at least one paging packet corresponding to the at least one network slice to which the terminal device belongs; the terminal device receiving the indication sent by the access network device Information, the indication information is used to indicate a target paging packet in the at least one paging packet; the terminal device receives a paging message sent by the access network device, where the paging message is that the access network device searches for the target A paging message sent by the terminal device of the packet.
  • the access network device selects a network slice that needs to be preferentially paged, and sends a paging message to the terminal device supporting the network slice, and indicates the network slice, so that the network slice used by the terminal device
  • the paging message sent by the access network is detected, so that the terminal device can receive the paging message based on different network slices used by the terminal device, thereby avoiding frequently interpreting the paging not belonging to itself.
  • the POs used by the access network device to send paging messages to different terminal devices may be the same or different.
  • the paging moments PO used by the access network device to send paging messages to terminal devices of different paging packets may be the same or different.
  • the method further includes: receiving, by the terminal device, system information sent by the access network device, where the system information carries the correspondence between the plurality of paging packets and the plurality of network slices.
  • the system information further includes information about the multiple cells.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application.
  • the implementation of the examples constitutes any limitation.
  • FIG. 4 is a schematic block diagram of a network device 400 in accordance with an embodiment of the present application.
  • the network device 400 includes a transceiver unit 410.
  • the transceiver unit 410 is configured to: send a paging message to the terminal device based on at least one network slice used by the terminal device.
  • the network device performs paging on the terminal device based on the network slice of the terminal device, which can reduce the paging signaling overhead and prevent the terminal device from frequently interpreting the paging not belonging to itself. Message.
  • the network device is a core network device
  • the transceiver unit 410 is specifically configured to: if the time delay requirement is less than a threshold, the core network device is in the at least one network slice used by the terminal device, Determining a first network slice that needs to be preferentially paged, and preferentially sending a paging message to the terminal device through an access network device supporting the first network slice.
  • the core network device selects a network slice that needs to be preferentially paged in at least one network slice used by the terminal device, and preferentially supports the connection of the network slice.
  • the network access device pages the terminal device, thereby improving paging efficiency and reducing the overhead of paging signaling.
  • the transceiver unit 410 is further configured to: send a paging message to the terminal device by using an access network device that supports the second network slice and does not support the first network slice.
  • the first network slice is: a network slice supported by the access network device where the terminal device newly establishes a service, and a network supported by the access network device where the terminal device performs regional update. Slice, or the highest priority network slice.
  • the network device is a core network device
  • the transceiver unit 410 is specifically configured to: if the time delay requirement is greater than a threshold, the core network device simultaneously supports each access network device that supports the at least one network slice Sending a paging message to the terminal device.
  • the network device is an access network device, where the access network device further includes a determining unit, where the determining unit is configured to: based on the at least one network slice used by the terminal device, and multiple networks Determining, by the slice and the plurality of paging packets, the at least one paging packet corresponding to the at least one network slice to which the terminal device belongs; the transceiver unit 410 is specifically configured to: be based on the terminal device The paging packet sends a paging message to the terminal device.
  • the access network device further includes a determining unit, where the determining unit is configured to: based on the at least one network slice used by the terminal device, and multiple networks Determining, by the slice and the plurality of paging packets, the at least one paging packet corresponding to the at least one network slice to which the terminal device belongs; the transceiver unit 410 is specifically configured to: be based on the terminal device The paging packet sends a paging message to the terminal device.
  • the transceiver unit 410 is specifically configured to: in the at least one paging packet, select a target paging packet to be paged, and send a paging message to the terminal device of the target paging packet;
  • the transceiver unit 410 is further configured to: send the indication information to the terminal device, where the indication information is used to indicate the target paging packet.
  • the access network device performs paging to the terminal device
  • the network slice that needs to be preferentially paged is selected in at least one network slice used by the terminal device, and preferentially supports the network slice.
  • the terminal device sends a paging message, and indicates the network slice to the terminal device by using the indication information, so that the terminal device determines that it supports the network slice indicated by the indication information, and receives a paging message sent by the network device for the network slice. Therefore, when the POs used by the differently sliced terminal devices overlap, the terminal device can still determine whether its own paging message is sent, thereby avoiding frequent interpretation of paging messages that are not belonging to itself.
  • the access network device uses the same or different POs used to send paging messages to identify different terminal devices.
  • the PO used by the access network device to send the paging message to the terminal device of the different paging packet is the same or different.
  • the transceiver unit 410 is further configured to: send system information to the terminal device, where the system information carries the correspondence between multiple paging packets and multiple network slices.
  • the system information further includes information about the multiple cells.
  • the network device 400 may correspond to the network device in the method 200, and the operations implemented by the network device in the method 200 may be implemented. For brevity, no further details are provided herein.
  • FIG. 5 is a schematic block diagram of a terminal device 500 according to an embodiment of the present application.
  • the terminal device 500 includes a transceiver unit 510.
  • the transceiver unit 510 is configured to: receive, according to the at least one network slice used by the terminal device, a paging message sent by the access network device.
  • the terminal device receives the paging message sent by the network device based on the network slice used by the terminal device, and can reduce the paging signaling overhead and avoid the terminal device compared to the paging message sent by the receiving network device to all network slices simultaneously. Frequently interpret paging messages that are not your own.
  • the terminal device further includes a determining unit, configured to: based on the at least one network slice used by the terminal device, and a correspondence between multiple network slices and multiple paging packets Determining, by the terminal device, at least one paging packet corresponding to the at least one network slice; the transceiver unit 510 is specifically configured to: receive indication information sent by the access network device, where the indication information is used Determining a target paging packet in the at least one paging packet; receiving a paging message sent by the access network device, wherein the paging message is a terminal of the access network device to the target paging packet The paging message sent by the device.
  • a determining unit configured to: based on the at least one network slice used by the terminal device, and a correspondence between multiple network slices and multiple paging packets Determining, by the terminal device, at least one paging packet corresponding to the at least one network slice; the transceiver unit 510 is specifically configured to: receive indication information sent by the access network device
  • the access network device selects a network slice that needs to be preferentially paged, and sends a paging message to the terminal device supporting the network slice, and indicates the network slice, so that the network slice used by the terminal device
  • the paging message sent by the access network is detected, so that the terminal device can receive the paging message based on different network slices used by the terminal device, thereby avoiding frequently interpreting the paging not belonging to itself.
  • the POs used by the different terminal devices to receive the paging message sent by the access network device are the same or different.
  • the terminal devices of different paging groups receive the same or different POs used by the paging message sent by the access network device.
  • the transceiver unit 510 is further configured to: receive system information sent by the access network device, where the system information carries the correspondence between multiple paging packets and multiple network slices.
  • the system information further includes information about the multiple cells.
  • terminal device 500 may correspond to the terminal device in the method 300, and the operations implemented by the terminal device in the method 300 may be implemented. For brevity, details are not described herein again.
  • FIG. 6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device includes a processor 610, a transceiver 620, and a memory 630, wherein the processor 610, the transceiver 620, and the memory 630 communicate with each other through an internal connection path.
  • the memory 630 is configured to store instructions for executing the instructions stored by the memory 630 to control the transceiver 620 to receive signals or transmit signals.
  • the processor 610 can call the program code stored in the memory 630 to perform the corresponding operations of the method 200 performed by the network device in the method embodiment.
  • the processor 610 can call the program code stored in the memory 630 to perform the corresponding operations of the method 200 performed by the network device in the method embodiment.
  • the processor 610 can call the program code stored in the memory 630 to perform the corresponding operations of the method 300 performed by the terminal device in the method embodiment.
  • the processor 610 can call the program code stored in the memory 630 to perform the corresponding operations of the method 300 performed by the terminal device in the method embodiment.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • FIG. 7 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the system chip 700 of FIG. 7 includes an input interface 701, an output interface 702, at least one processor 703, and a memory 704.
  • the input interface 701, the output interface 702, the processor 703, and the memory 704 are interconnected by an internal connection path.
  • the processor 703 is configured to execute code in the memory 704.
  • the processor 703 can implement the method 200 performed by the network device in a method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 703 can implement the method 300 performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one monitoring unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请公开了一种寻呼方法、网络设备和终端设备，该方法包括：网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息。因此，网络设备基于终端设备的网络切片向终端设备进行寻呼，相比于同时对全部网络切片进行寻呼，能够降低寻呼信令的开销，并避免终端设备频繁解读不属于自己的寻呼消息。

Description

寻呼方法和设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及寻呼方法和设备。
背景技术
在长期演进(Long Term Evolution，LTE)系统中，寻呼(paging)消息是在寻呼无线帧(Paging Frame，PF)中的一个寻呼时刻(Paging Occasion，PO)上传输的。在新无线(New Radio，NR)系统中，终端设备可能支持多个网络切片，因此，如何基于终端设备的网络切片对终端设备进行寻呼消息传输成为亟待解决的问题。
发明内容
本申请实施例提供了一种寻呼方法和设备，能够基于终端设备的网络切片对终端设备进行寻呼消息传输。
第一方面，提供了一种寻呼方法，包括：网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息。
因此，网络设备基于终端设备的网络切片向终端设备进行寻呼，相比于同时对全部网络切片进行寻呼，能够降低寻呼信令的开销，并避免终端设备频繁解读不属于自己的寻呼消息。
在一种可能的实现方式中，所述网络设备为核心网设备，所述网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息，包括：若时延要求小于阈值，则所述核心网设备在所述终端设备使用的所述至少一个网络切片中，确定需要优先进行寻呼的第一网络切片，并优先通过支持所述第一网络切片的接入网设备，向所述终端设备发送寻呼消息。
因此，核心网设备在向终端设备进行寻呼时，通过在该终端设备使用的至少一个网络切片中选择需要优先进行寻呼的网络切片，并优先通过支持该网络切片的接入网设备向终端设备进行寻呼，从而能够提高寻呼效率，降低寻呼信令的开销。
在一种可能的实现方式中，所述方法还包括：所述核心网设备通过支持第二网络切片且不支持所述第一网络切片的接入网设备，向所述终端设备发 送寻呼消息。
在一种可能的实现方式中，所述第一网络切片为：所述终端设备最近一次建立业务所在的接入网设备所支持的网络切片、所述终端设备进行区域更新后所在的接入网设备所支持的网络切片、或者优先级最高的网络切片。
在一种可能的实现方式中，所述网络设备为核心网设备，所述网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息，包括：若时延要求大于阈值，则所述核心网设备同时通过支持所述至少一个网络切片的各个接入网设备，向所述终端设备发送寻呼消息。
在一种可能的实现方式中，所述网络设备为接入网设备，所述网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息，包括：所述接入网设备基于所述终端设备使用的所述至少一个网络切片，以及多个网络切片与多个寻呼分组之间的对应关系，确定所述终端设备所属的与所述至少一个网络切片对应的至少一个寻呼分组；所述接入网设备基于所述终端设备所属的寻呼分组，向所述终端设备发送寻呼消息。
在一种可能的实现方式中，所述接入网设备基于所述终端设备所属的寻呼分组，向所述终端设备发送寻呼消息，包括：所述接入网设备在所述至少一个寻呼分组中，选择待寻呼的目标寻呼分组，并向所述目标寻呼分组的终端设备发送寻呼消息；
其中，所述方法还包括：所述接入网设备向所述终端设备发送指示信息，所述指示信息用于指示所述目标寻呼分组。
因此，接入网设备在向终端设备进行寻呼时，通过在该终端设备使用的至少一个网络切片中选择需要优先进行寻呼的网络切片，并优先向支持该网络切片的终端设备发送寻呼消息，并通过指示信息向该终端设备指示该网络切片，从而该终端设备判断自己支持该指示信息指示的网络切片时，接收网络设备发送的针对该网络切片的寻呼消息，从而当不同切片的终端设备使用的PO重叠时，终端设备仍能确定自己的寻呼消息是否被发送，从而避免了频繁地解读不属于自己的寻呼消息。
在一种可能的实现方式中，所述接入网设备向不同寻呼分组的终端设备发送寻呼消息所使用的寻呼时刻PO不同。
在一种可能的实现方式中，所述接入网设备向不同寻呼分组的终端设备发送寻呼消息所使用的PO相同。
在一种可能的实现方式中，所述接入网设备向标识不同的终端设备发送寻呼消息所使用的PO不同。
在一种可能的实现方式中，所述方法还包括：所述接入网设备向所述终端设备发送系统信息，所述系统信息中携带多个寻呼分组与多个网络切片之间的所述对应关系。
在一种可能的实现方式中，若所述接入网设备的多个小区中的所述对应关系均相同，则所述系统信息还包括所述多个小区的信息。
第二方面，提供了一种寻呼方法，包括：终端设备基于所述终端设备使用的至少一个网络切片，接收接入网设备发送的寻呼消息。
因此，终端设备基于其所使用的网络切片接收网络设备发送的寻呼消息，相比于接收网络设备同时向全部网络切片发送的寻呼消息，能够降低寻呼信令的开销，并避免终端设备频繁解读不属于自己的寻呼消息。
在一种可能的实现方式中，所述终端设备基于所述终端设备使用的至少一个网络切片，接收接入网设备发送的寻呼消息，包括：所述终端设备基于所述终端设备使用的所述至少一个网络切片，以及多个网络切片与多个寻呼分组之间的对应关系，确定所述终端设备所属的与所述至少一个网络切片对应的至少一个寻呼分组；所述终端设备接收所述接入网设备发送的指示信息，所述指示信息用于指示所述至少一个寻呼分组中的目标寻呼分组；所述终端设备接收所述接入网设备发送的寻呼消息，所述寻呼消息为所述接入网设备向所述目标寻呼分组的终端设备发送的寻呼消息。
因此，该实施例中，接入网设备选择需要优先进行寻呼的网络切片，并向支持该网络切片的终端设备发送寻呼消息，同时指示该网络切片，从而当终端设备使用的网络切片中包括该接入网设备指示的切片时，检测该接入网发送的寻呼消息，从而使得终端设备可以基于自己使用的不同网络切片接收寻呼消息，避免了频繁地解读不属于自己的寻呼消息。
在一种可能的实现方式中，不同寻呼分组的终端设备接收所述接入网设备发送的寻呼消息所使用的PO不同。
在一种可能的实现方式中，不同寻呼分组的终端设备接收所述接入网设备发送的寻呼消息所使用的PO相同。
在一种可能的实现方式中，标识不同的终端设备接收所述接入网设备发送的寻呼消息所使用的PO不同。
在一种可能的实现方式中，所述方法还包括：所述终端设备接收所述接入网设备发送的系统信息，所述系统信息中携带多个寻呼分组与多个网络切片之间的所述对应关系。
在一种可能的实现方式中，若所述接入网设备的多个小区中的所述对应关系均相同，则所述系统信息还包括所述多个小区的信息。
第三方面，提供了一种网络设备，该网络设备可以执行上述第一方面或第一方面的任意可选的实现方式中的第一节点的操作。具体地，该网络设备可以包括用于执行上述第一方面或第一方面的任意可能的实现方式中的网络设备的操作的模块单元。
第四方面，提供了一种终端设备，该终端设备可以执行上述第二方面或第二方面的任意可选的实现方式中的第一节点的操作。具体地，该终端设备可以包括用于执行上述第二方面或第二方面的任意可能的实现方式中的终端设备的操作的模块单元。
第五方面，提供了一种网络设备，该网络设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该网络设备执行第一方面或第一方面的任意可能的实现方式中的方法，或者该执行使得该网络设备实现第三方面提供的网络设备。
第六方面，提供了一种终端设备，该终端设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该终端设备执行第二方面或第二方面的任意可能的实现方式中的方法，或者该执行使得该终端设备实现第四方面提供的终端设备。
第七方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第一方面或第一方面的任意可能的实现方式中的方法。
第八方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行 时，该处理器可以实现前述第二方面或第二面的任意可能的实现方式中的方法。
第九方面，提供了一种包括指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得该计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十方面，提供了一种包括指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得该计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法。
附图说明
图1是本申请实施例的一种应用场景的示意性架构图。
图2是本申请实施例的寻呼方法的示意性流程图。
图3是本申请另一实施例的寻呼方法的示意性流程图。
图4是本申请实施例的网络设备的示意性框图。
图5是本申请实施例的终端设备的示意性框图。
图6是本申请实施例的通信设备的示意性框图。
图7是本申请实施例的系统芯片的示意性框图。
具体实施方式
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，简称为“GSM”)系统、码分多址(Code Division Multiple Access，简称为“CDMA”)系统、宽带码分多址(Wideband Code Division Multiple Access，简称为“WCDMA”)系统、通用分组无线业务(General Packet Radio Service，简称为“GPRS”)、长期演进(Long Term Evolution，简称为“LTE”)系统、LTE频分双工(Frequency Division Duplex，简称为“FDD”)系统、LTE时分双工(Time Division Duplex，简称为“TDD”)、通用移动通信系统(Universal Mobile Telecommunication System，简称为“UMTS”)、全球互联微波接入(Worldwide Interoperability for Microwave Access，简称为“WiMAX”)通信系统或未来的5G系统等。
图1示出了本申请实施例应用的无线通信系统100。该无线通信系统100可以包括网络设备110。网络设备100可以是与终端设备通信的设备。网络 设备100可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备(例如UE)进行通信。可选地，该网络设备100可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该无线通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。终端设备120可以是移动的或固定的。可选地，终端设备120可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G系统或网络还可以称为新无线(New Radio，NR)系统或网络。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
在NR系统中，终端设备可能支持多个网络切片，如果针对每个网络切片都进行寻呼，则寻呼信令开销很大。另外，如果针对不同网络切片的寻呼消息使用的寻呼时刻PO相同，则终端设备可能频繁地解读不属于自己的下 行控制信息(Download Control Information，DCI)甚至寻呼消息。
本申请实施例中，网络设备基于终端设备的网络切片向终端设备进行寻呼，从而降低了寻呼信令的开销，避免了终端设备频繁解读不属于自己的寻呼消息。
图2是本申请实施例的寻呼方法的示意性流程图。图2中所示的网络设备例如可以为图1中所示的网络设备110，该网络设备可以为接入网设备例如基站，或者为核心网设备例如接入与移动性管理功能(Access and Mobility Management Function，AMF)。如图2所示，该寻呼方法200包括：
步骤210，网络设备基于终端设备使用的至少一个网络切片，向该终端设备发送寻呼消息。
因此，网络设备基于终端设备的网络切片向终端设备进行寻呼，相比于同时对全部网络切片进行寻呼，能够降低寻呼信令的开销，并避免终端设备频繁解读不属于自己的寻呼消息，节省终端设备的功耗。
本申请实施例中也将网络切片简称为切片。该切片可以为以下任意一种类型的切片：增强移动宽带(Enhance Mobile Broadband，eMBB)切片、高可靠低时延通信(Ultra Reliable&Low Latency Communication，URLLC)切片和物联网(Internet of Things，IoT)切片。
下面分别针对两种情况对步骤210进行描述。
情况1
该网络设备为核心网设备。即对核心网侧进行的优化。
可选地，在步骤210中，网络设备基于终端设备使用的至少一个网络切片，向该终端设备发送寻呼消息，包括：若时延要求小于阈值，则该核心网设备在该终端设备使用的该至少一个网络切片中，确定需要优先进行寻呼的第一网络切片，并优先通过支持该第一网络切片的接入网设备，向该终端设备发送寻呼消息。
或者，可选地，在步骤210中，网络设备基于终端设备使用的至少一个网络切片，向该终端设备发送寻呼消息，包括：若时延要求大于阈值，则该核心网设备同时通过支持该至少一个网络切片的各个接入网设备，向该终端设备发送寻呼消息。
因此，该实施例中，核心网设备在向终端设备进行寻呼时，通过在该终端设备使用的至少一个网络切片中选择需要优先进行寻呼的网络切片，并优 先通过支持该网络切片的接入网设备向终端设备进行寻呼，从而能够提高寻呼效率，降低寻呼信令的开销。
可选地，该方法还包括：该核心网设备通过支持第二网络切片且不支持该第一网络切片的接入网设备，向该终端设备发送寻呼消息。
也就是说，在该核心网设备通过支持第一网络切片的接入网设备向终端设备进行寻呼之后，如果没有寻呼到该终端设备，则该核心网设备可以通过支持第二网络切片的接入网设备向该终端设备进行寻呼。
其中，如果支持第一网络切片的至少一个接入网设备中存在即支持第一网络切片又支持第二网络切片的接入网设备，那么由于之前针对第一网络切片进行寻呼时，已经通过该接入网设备向终端设备发送了寻呼消息，则之后再针对该第二网络切片向该终端设备进行寻呼时，就不用再向该接入网设备发送寻呼消息，以避免重复的进行寻呼，降低寻呼信令的开销。
其中，优先进行寻呼的该第一网络切片可以为该终端设备最近一次建立业务所在的接入网设备所支持的网络切片；该终端设备进行区域更新后所在的接入网设备所支持的网络切片、或者优先级最高的网络切片。
该核心网设备例如可以通过终端设备在核心网注册的切片信息，来获取该终端设备支持的至少一个切片。
该核心网设备例如可以通过区域更新消息，来获取终端设备进行区域更新的接入网设备。
举例来说，终端设备在该核心网设备注册的切片包括切片1、切片2和切片3，该核心网设备连接有基站1、基站2和基站3，且基站1支持切片1，基站2支持切片1和切片2，基站3支持切片3。一些情况下，例如对于不紧急的寻呼，该核心网设备可以通过基站1、基站2和基站3同时对该终端设备进行寻呼，即该核心网同时针对三个切片进行寻呼。另一些情况下，例如对于较为紧急的寻呼，该核心网设备可以在切片1、切片2和切片3中选择一个切片优先进行寻呼，例如选择切片1优先进行寻呼，此时，由于基站1和基站2都支持切片1，因此该核心网设备优先通过支持切片1的基站1和基站2向该终端设备进行寻呼。
如果没有寻呼到该终端设备，则该核心网设备可以进行第二次寻呼，此时可以向支持切片2的基站发送寻呼消息，从而通过支持切片2的基站向该终端设备进行寻呼。这里应注意，由于基站2即支持切片1也支持切片2， 那么该核心网设备由于之前已经优先通过支持切片1的基站向该终端设备进行了寻呼，即已经通过基站2向该终端设备进行了寻呼，因此，该核心网设备需要通过支持切片2的基站进行第二次寻呼时，就不必再对该基站2进行寻呼了。
同样，如果第二次寻呼之后，仍旧没有寻呼到该终端设备，则类似地，可以通过支持切片3的基站3向该终端设备进行寻呼。
情况2
该网络设备为接入网设备。即对接入网侧进行的优化。
可选地，在210中，网络设备基于终端设备使用的至少一个网络切片，向该终端设备发送寻呼消息，包括：该接入网设备在该至少一个寻呼分组中，选择待寻呼的目标寻呼分组，并向该目标寻呼分组的终端设备发送寻呼消息；
其中，该方法还包括：该接入网设备向该终端设备发送指示信息，该指示信息用于指示该目标寻呼分组。
因此，该实施例中，接入网设备在向终端设备进行寻呼时，通过在该终端设备使用的至少一个网络切片中选择需要优先进行寻呼的网络切片，并优先向支持该网络切片的终端设备发送寻呼消息，并通过指示信息向该终端设备指示该网络切片，从而该终端设备判断自己支持该指示信息指示的网络切片时，接收网络设备发送的针对该网络切片的寻呼消息，从而当不同切片的终端设备使用的PO重叠时，终端设备仍能确定自己的寻呼消息是否被发送，从而避免了频繁地解读不属于自己的寻呼消息。
可选地，该接入网设备向标识不同的终端设备发送寻呼消息所使用的PO可能相同或不同。
可选地，该接入网设备向不同寻呼分组的终端设备发送寻呼消息所使用的寻呼时刻PO可能相同或不同。
终端设备的寻呼消息在传输时所使用的PO可以根据终端设备的标识(UE-ID)例如截短的国际移动用户识别码(International Mobile Subscriber Identification Number，IMSI)，以及系统广播的一些参数来计算用于接收寻呼消息的PF和PO，并检测物理下行控制信道(Physical Downlink Control Channel，PDCCH)，并且使用寻呼无线网络临时标识(Paging Radio Network Temporary Identity，P-RNTI)进行解码，然后根据解码结果在物理下行共享 信道(Physical Downlink Shared Channel，PDSCH)上去接收寻呼消息。该寻呼消息中包括上层的终端设备的标识信息例如临时移动用户标识码(Temporary Mobile Subscriber Identity，TSMI)，可以供终端设备判断是否需要回应网络设备发送的寻呼消息。
举例来说，假设支持切片1的中的终端设备属于寻呼分组1，支持切片2的中的终端设备属于寻呼分组2。终端设备1支持切片1，属于寻呼分组1，终端设备2支持切片2，属于寻呼分组2。如果终端设备1和终端设备2各自计算得到的用于接收寻呼消息的PO为同一个PO，那么，由于接入网设备是基于终端设备支持的切片进行寻呼的，因此，若当前该PO上的寻呼消息为该接入网设备向寻呼分组1的终端设备发送的寻呼消息，那么，该终端设备1接收到该接入网设备发送的指示寻呼分组1的指示信息时，发现自己并属于寻呼分组1，就会在该PO上检测自己的寻呼消息，而该终端设备2接收到该接入网设备发送的指示寻呼分组1的该指示信息时，发现自己并不属于寻呼分组1，因此就不会在该PO上检测自己的寻呼消息，从而避免了终端设备2频繁地解读不属于自己的寻呼消息。
当接入网设备对寻呼分组2的终端设备进行寻呼时，会发送指示寻呼分组2的指示信息，从而当终端设备2接收到指示寻呼分组2的该指示信息时，才会在该PO上检测自己的寻呼消息。
其中，该接入网设备对寻呼分组1和寻呼分组2的终端设备进行寻呼的先后顺序，本申请不作任何限定。例如，若终端设备支持多个网络切片，则可以根据这多个网络切片的优先级，优先寻呼优先级高的网络切片对应的寻呼分组的终端设备。
可选地，该方法还包括：该接入网设备向该终端设备发送系统信息，该系统信息中携带多个寻呼分组与多个网络切片之间的该对应关系。
或者，接入网设备也可以通过专用信令将寻呼分组与网络切片之间的该对应关系配置给终端设备。
可选地，若该接入网设备的多个小区中的该对应关系均相同，则该系统信息还包括该多个小区的信息。
终端设备可以在进入一个小区时先进入连接状态，以获取寻呼分组与网络切片之间的该对应关系。
图3是本申请实施例的寻呼方法的示意性流程图。图3中所示的终端设 备例如可以为图1中所示的终端设备120。如图2所示，该寻呼方法300包括：
步骤210，终端设备基于该终端设备使用的至少一个网络切片，接收接入网设备发送的寻呼消息。
因此，终端设备基于其所使用的网络切片接收网络设备发送的寻呼消息，相比于接收网络设备同时向全部网络切片发送的寻呼消息，能够降低寻呼信令的开销，并避免终端设备频繁解读不属于自己的寻呼消息。
可选地，在步骤210中，该终端设备基于该终端设备使用的至少一个网络切片，接收接入网设备发送的寻呼消息，包括：该终端设备基于该终端设备使用的该至少一个网络切片，以及多个网络切片与多个寻呼分组之间的对应关系，确定该终端设备所属的与该至少一个网络切片对应的至少一个寻呼分组；该终端设备接收该接入网设备发送的指示信息，该指示信息用于指示该至少一个寻呼分组中的目标寻呼分组；该终端设备接收该接入网设备发送的寻呼消息，该寻呼消息为该接入网设备向该目标寻呼分组的终端设备发送的寻呼消息。
因此，该实施例中，接入网设备选择需要优先进行寻呼的网络切片，并向支持该网络切片的终端设备发送寻呼消息，同时指示该网络切片，从而当终端设备使用的网络切片中包括该接入网设备指示的切片时，检测该接入网发送的寻呼消息，从而使得终端设备可以基于自己使用的不同网络切片接收寻呼消息，避免了频繁地解读不属于自己的寻呼消息。
可选地，该接入网设备向标识不同的终端设备发送寻呼消息所使用的PO可能相同或不同。
可选地，该接入网设备向不同寻呼分组的终端设备发送寻呼消息所使用的寻呼时刻PO可能相同或不同。
可选地，该方法还包括：该终端设备接收该接入网设备发送的系统信息，该系统信息中携带多个寻呼分组与多个网络切片之间的该对应关系。
可选地，若该接入网设备的多个小区中的该对应关系均相同，则该系统信息还包括该多个小区的信息。
应理解，终端设备接收寻呼消息的过程的具体细节，可以参考前述图2中对网络设备的描述，为了简洁，这里不再赘述。
还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意 味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中详细描述了根据本申请实施例的寻呼方法，下面将结合图4至图7，描述根据本申请实施例的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图4是根据本申请实施例的网络设备400的示意性框图。如图4所示，该网络设备400包括收发单元410。其中，该收发单元410用于：基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息。
因此，网络设备基于终端设备的网络切片向终端设备进行寻呼，相比于同时对全部网络切片进行寻呼，能够降低寻呼信令的开销，并避免终端设备频繁解读不属于自己的寻呼消息。
可选地，所述网络设备为核心网设备，所述收发单元410具体用于：若时延要求小于阈值，则所述核心网设备在所述终端设备使用的所述至少一个网络切片中，确定需要优先进行寻呼的第一网络切片，并优先通过支持所述第一网络切片的接入网设备，向所述终端设备发送寻呼消息。
因此，该实施例中，核心网设备在向终端设备进行寻呼时，通过在该终端设备使用的至少一个网络切片中选择需要优先进行寻呼的网络切片，并优先通过支持该网络切片的接入网设备向终端设备进行寻呼，从而能够提高寻呼效率，降低寻呼信令的开销。
可选地，所述收发单元410还用于：通过支持第二网络切片且不支持所述第一网络切片的接入网设备，向所述终端设备发送寻呼消息。
可选地，所述第一网络切片为：所述终端设备最近一次建立业务所在的接入网设备所支持的网络切片、所述终端设备进行区域更新后所在的接入网设备所支持的网络切片、或者优先级最高的网络切片。
可选地，所述网络设备为核心网设备，所述收发单元410具体用于：若时延要求大于阈值，则所述核心网设备同时通过支持所述至少一个网络切片的各个接入网设备，向所述终端设备发送寻呼消息。
可选地，所述网络设备为接入网设备，所述接入网设备还包括确定单元，所述确定单元用于：基于所述终端设备使用的所述至少一个网络切片，以及多个网络切片与多个寻呼分组之间的对应关系，确定所述终端设备所属的与所述至少一个网络切片对应的至少一个寻呼分组；所述收发单元410具体用 于：基于所述终端设备所属的寻呼分组，向所述终端设备发送寻呼消息。
可选地，所述收发单元410具体用于：在所述至少一个寻呼分组中，选择待寻呼的目标寻呼分组，并向所述目标寻呼分组的终端设备发送寻呼消息；所述收发单元410还用于：向所述终端设备发送指示信息，所述指示信息用于指示所述目标寻呼分组。
因此，该实施例中，接入网设备在向终端设备进行寻呼时，通过在该终端设备使用的至少一个网络切片中选择需要优先进行寻呼的网络切片，并优先向支持该网络切片的终端设备发送寻呼消息，并通过指示信息向该终端设备指示该网络切片，从而该终端设备判断自己支持该指示信息指示的网络切片时，接收网络设备发送的针对该网络切片的寻呼消息，从而当不同切片的终端设备使用的PO重叠时，终端设备仍能确定自己的寻呼消息是否被发送，从而避免了频繁地解读不属于自己的寻呼消息。
可选地，所述接入网设备向标识不同的终端设备发送寻呼消息所使用的PO相同或者不同。
可选地，所述接入网设备向不同寻呼分组的终端设备发送寻呼消息所使用的PO相同或者不同。
可选地，所述收发单元410还用于：向所述终端设备发送系统信息，所述系统信息中携带多个寻呼分组与多个网络切片之间的所述对应关系。
可选地，若所述接入网设备的多个小区中的所述对应关系均相同，则所述系统信息还包括所述多个小区的信息。
应理解，该网络设备400可以对应于方法200中的网络设备，可以实现该方法200中的网络设备实现的操作，为了简洁，在此不再赘述。
图5是根据本申请实施例的终端设备500的示意性框图。如图5所示，该终端设备500包括收发单元510。其中，该收发单元510用于：基于所述终端设备使用的至少一个网络切片，接收接入网设备发送的寻呼消息。
因此，终端设备基于其所使用的网络切片接收网络设备发送的寻呼消息，相比于接收网络设备同时向全部网络切片发送的寻呼消息，能够降低寻呼信令的开销，并避免终端设备频繁解读不属于自己的寻呼消息。
可选地，所述终端设备还包括确定单元，所述确定单元用于：基于所述终端设备使用的所述至少一个网络切片，以及多个网络切片与多个寻呼分组之间的对应关系，确定所述终端设备所属的与所述至少一个网络切片对应的 至少一个寻呼分组；所述收发单元510具体用于：接收所述接入网设备发送的指示信息，所述指示信息用于指示所述至少一个寻呼分组中的目标寻呼分组；接收所述接入网设备发送的寻呼消息，其中所述寻呼消息为所述接入网设备向所述目标寻呼分组的终端设备发送的寻呼消息。
因此，该实施例中，接入网设备选择需要优先进行寻呼的网络切片，并向支持该网络切片的终端设备发送寻呼消息，同时指示该网络切片，从而当终端设备使用的网络切片中包括该接入网设备指示的切片时，检测该接入网发送的寻呼消息，从而使得终端设备可以基于自己使用的不同网络切片接收寻呼消息，避免了频繁地解读不属于自己的寻呼消息。
可选地，标识不同的终端设备接收所述接入网设备发送的寻呼消息所使用的PO相同或不同。
可选地，不同寻呼分组的终端设备接收所述接入网设备发送的寻呼消息所使用的PO相同或不同。
可选地，所述收发单元510还用于：接收所述接入网设备发送的系统信息，所述系统信息中携带多个寻呼分组与多个网络切片之间的所述对应关系。
可选地，若所述接入网设备的多个小区中的所述对应关系均相同，则所述系统信息还包括所述多个小区的信息。
应理解，该终端设备500可以对应于方法300中的终端设备，可以实现该方法300中的终端设备实现的操作，为了简洁，在此不再赘述。
图6是根据本申请实施例的通信设备600的示意性结构图。如图6所示，该通信设备包括处理器610、收发器620和存储器630，其中，该处理器610、收发器620和存储器630之间通过内部连接通路互相通信。该存储器630用于存储指令，该处理器610用于执行该存储器630存储的指令，以控制该收发器620接收信号或发送信号。
可选地，该处理器610可以调用存储器630中存储的程序代码，执行方法实施例中的网络设备执行的方法200的相应操作，为了简洁，在此不再赘述。
可选地，该处理器610可以调用存储器630中存储的程序代码，执行方法实施例中的终端设备执行的方法300的相应操作，为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
图7是本申请实施例的系统芯片的一个示意性结构图。图7的系统芯片700包括输入接口701、输出接口702、至少一个处理器703、存储器704， 所述输入接口701、输出接口702、所述处理器703以及存储器704之间通过内部连接通路互相连接。所述处理器703用于执行所述存储器704中的代码。
可选地，当所述代码被执行时，所述处理器703可以实现方法实施例中由网络设备执行的方法200。为了简洁，这里不再赘述。
可选地，当所述代码被执行时，所述处理器703可以实现方法实施例中由终端设备执行的方法300。为了简洁，这里不再赘述。
应理解，在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
还应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方， 或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个监测单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (34)

  1. 一种寻呼方法，其特征在于，所述方法包括：
    网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息。
  2. 根据权利要求1所述的方法，其特征在于，所述网络设备为核心网设备，所述网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息，包括：
    若时延要求小于阈值，则所述核心网设备在所述终端设备使用的所述至少一个网络切片中，确定需要优先进行寻呼的第一网络切片，并优先通过支持所述第一网络切片的接入网设备，向所述终端设备发送寻呼消息。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    所述核心网设备通过支持第二网络切片且不支持所述第一网络切片的接入网设备，向所述终端设备发送寻呼消息。
  4. 根据权利要求2或3所述的方法，其特征在于，所述第一网络切片为：
    所述终端设备最近一次建立业务所在的接入网设备所支持的网络切片、所述终端设备进行区域更新后所在的接入网设备所支持的网络切片、或者优先级最高的网络切片。
  5. 根据权利要求1所述的方法，其特征在于，所述网络设备为核心网设备，所述网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息，包括：
    若时延要求大于阈值，则所述核心网设备同时通过支持所述至少一个网络切片的各个接入网设备，向所述终端设备发送寻呼消息。
  6. 根据权利要求1所述的方法，其特征在于，所述网络设备为接入网设备，所述网络设备基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息，包括：
    所述接入网设备基于所述终端设备使用的所述至少一个网络切片，以及多个网络切片与多个寻呼分组之间的对应关系，确定所述终端设备所属的与所述至少一个网络切片对应的至少一个寻呼分组；
    所述接入网设备基于所述终端设备所属的寻呼分组，向所述终端设备发送寻呼消息。
  7. 根据权利要求6所述的方法，其特征在于，所述网络设备基于所述终端设备所属的寻呼分组，向所述终端设备发送寻呼消息，包括：
    所述接入网设备在所述至少一个寻呼分组中，选择待寻呼的目标寻呼分组，并向所述目标寻呼分组的终端设备发送寻呼消息；
    其中，所述方法还包括：
    所述接入网设备向所述终端设备发送指示信息，所述指示信息用于指示所述目标寻呼分组。
  8. 根据权利要求6或7所述的方法，其特征在于，所述接入网设备向标识不同的终端设备发送寻呼消息所使用的PO相同或者不同。
  9. 根据权利要求6或7所述的方法，其特征在于，所述接入网设备向不同寻呼分组的终端设备发送寻呼消息所使用的PO相同或者不同。
  10. 根据权利要求6至9中任一项所述的方法，其特征在于，所述方法还包括：
    所述接入网设备向所述终端设备发送系统信息，所述系统信息中携带多个寻呼分组与多个网络切片之间的所述对应关系。
  11. 根据权利要求10所述的方法，其特征在于，若所述接入网设备的多个小区中的所述对应关系均相同，则所述系统信息还包括所述多个小区的信息。
  12. 一种寻呼方法，其特征在于，包括：
    终端设备基于所述终端设备使用的至少一个网络切片，接收接入网设备发送的寻呼消息。
  13. 根据权利要求12所述的方法，其特征在于，所述终端设备基于所述终端设备使用的至少一个网络切片，接收接入网设备发送的寻呼消息，包括：
    所述终端设备基于所述终端设备使用的所述至少一个网络切片，以及多个网络切片与多个寻呼分组之间的对应关系，确定所述终端设备所属的与所述至少一个网络切片对应的至少一个寻呼分组；
    所述终端设备接收所述接入网设备发送的指示信息，所述指示信息用于指示所述至少一个寻呼分组中的目标寻呼分组；
    所述终端设备接收所述接入网设备发送的寻呼消息，其中，所述寻呼消息为所述接入网设备向所述目标寻呼分组的终端设备发送的寻呼消息。
  14. 根据权利要求13所述的方法，其特征在于，标识不同的终端设备接收所述接入网设备发送的寻呼消息所使用的PO相同或不同。
  15. 根据权利要求13或14所述的方法，其特征在于，不同寻呼分组的终端设备接收所述接入网设备发送的寻呼消息所使用的PO相同或不同。
  16. 根据权利要求12至15中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收所述接入网设备发送的系统信息，所述系统信息中携带多个寻呼分组与多个网络切片之间的所述对应关系。
  17. 根据权利要求16所述的方法，其特征在于，若所述接入网设备的多个小区中的所述对应关系均相同，则所述系统信息还包括所述多个小区的信息。
  18. 一种网络设备，其特征在于，所述网络设备包括：
    收发单元，用于基于终端设备使用的至少一个网络切片，向所述终端设备发送寻呼消息。
  19. 根据权利要求18所述的网络设备，其特征在于，所述网络设备为核心网设备，所述收发单元具体用于：
    若时延要求小于阈值，则所述核心网设备在所述终端设备使用的所述至少一个网络切片中，确定需要优先进行寻呼的第一网络切片，并优先通过支持所述第一网络切片的接入网设备，向所述终端设备发送寻呼消息。
  20. 根据权利要求19所述的网络设备，其特征在于，所述收发单元还用于：
    通过支持第二网络切片且不支持所述第一网络切片的接入网设备，向所述终端设备发送寻呼消息。
  21. 根据权利要求19或20所述的网络设备，其特征在于，所述第一网络切片为：
    所述终端设备最近一次建立业务所在的接入网设备所支持的网络切片、所述终端设备进行区域更新后所在的接入网设备所支持的网络切片、或者优先级最高的网络切片。
  22. 根据权利要求18所述的网络设备，其特征在于，所述网络设备为核心网设备，所述收发单元具体用于：
    若时延要求大于阈值，则所述核心网设备同时通过支持所述至少一个网 络切片的各个接入网设备，向所述终端设备发送寻呼消息。
  23. 根据权利要求18所述的网络设备，其特征在于，所述网络设备为接入网设备，所述接入网设备还包括确定单元，所述确定单元用于：
    基于所述终端设备使用的所述至少一个网络切片，以及多个网络切片与多个寻呼分组之间的对应关系，确定所述终端设备所属的与所述至少一个网络切片对应的至少一个寻呼分组；
    所述收发单元具体用于：基于所述终端设备所属的寻呼分组，向所述终端设备发送寻呼消息。
  24. 根据权利要求23所述的网络设备，其特征在于，所述收发单元具体用于：
    在所述至少一个寻呼分组中，选择待寻呼的目标寻呼分组，并向所述目标寻呼分组的终端设备发送寻呼消息；
    所述收发单元还用于：向所述终端设备发送指示信息，所述指示信息用于指示所述目标寻呼分组。
  25. 根据权利要求24所述的网络设备，其特征在于，所述接入网设备向标识不同的终端设备发送寻呼消息所使用的PO相同或者不同。
  26. 根据权利要求24或25所述的网络设备，其特征在于，所述接入网设备向不同寻呼分组的终端设备发送寻呼消息所使用的PO相同或者不同。
  27. 根据权利要求23至26中任一项所述的网络设备，其特征在于，所述收发单元还用于：
    向所述终端设备发送系统信息，所述系统信息中携带多个寻呼分组与多个网络切片之间的所述对应关系。
  28. 根据权利要求27所述的网络设备，其特征在于，若所述接入网设备的多个小区中的所述对应关系均相同，则所述系统信息还包括所述多个小区的信息。
  29. 一种终端设备，其特征在于，包括：
    收发单元，用于基于所述终端设备使用的至少一个网络切片，接收接入网设备发送的寻呼消息。
  30. 根据权利要求29所述的终端设备，其特征在于，所述终端设备还包括确定单元，所述确定单元用于：
    基于所述终端设备使用的所述至少一个网络切片，以及多个网络切片与 多个寻呼分组之间的对应关系，确定所述终端设备所属的与所述至少一个网络切片对应的至少一个寻呼分组；
    所述收发单元具体用于：接收所述接入网设备发送的指示信息，所述指示信息用于指示所述至少一个寻呼分组中的目标寻呼分组；接收所述接入网设备发送的寻呼消息，其中所述寻呼消息为所述接入网设备向所述目标寻呼分组的终端设备发送的寻呼消息。
  31. 根据权利要求30所述的终端设备，其特征在于，标识不同的终端设备接收所述接入网设备发送的寻呼消息所使用的PO相同或不同。
  32. 根据权利要求30或31所述的终端设备，其特征在于，不同寻呼分组的终端设备接收所述接入网设备发送的寻呼消息所使用的PO相同或不同。
  33. 根据权利要求29至32中任一项所述的终端设备，其特征在于，所述收发单元还用于：
    接收所述接入网设备发送的系统信息，所述系统信息中携带多个寻呼分组与多个网络切片之间的所述对应关系。
  34. 根据权利要求33所述的终端设备，其特征在于，若所述接入网设备的多个小区中的所述对应关系均相同，则所述系统信息还包括所述多个小区的信息。
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