WO2024037632A1 - 通信方法、终端及网络侧设备 - Google Patents

通信方法、终端及网络侧设备 Download PDF

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Publication number
WO2024037632A1
WO2024037632A1 PCT/CN2023/113799 CN2023113799W WO2024037632A1 WO 2024037632 A1 WO2024037632 A1 WO 2024037632A1 CN 2023113799 W CN2023113799 W CN 2023113799W WO 2024037632 A1 WO2024037632 A1 WO 2024037632A1
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WO
WIPO (PCT)
Prior art keywords
slice
information
nssai
terminal
message
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PCT/CN2023/113799
Other languages
English (en)
French (fr)
Inventor
于航
康艳超
孙晓文
Original Assignee
维沃移动通信有限公司
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.)
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Publication of WO2024037632A1 publication Critical patent/WO2024037632A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • This application belongs to the field of communication technology, and specifically relates to a communication method, terminal and network side equipment.
  • the slice may actually be rejected in a tracking area (Registration Area, TA) within the registration area (Registration Area, RA), but the network side will inform the terminal
  • TA tracking area
  • RA Registration Area
  • the slice cannot be used in the entire RA, so that the terminal cannot use the slice in the entire RA.
  • the slice can only be used again until the relevant timer expires, the terminal moves out of the RA, or the terminal is shut down, etc., resulting in slicing
  • the usage efficiency is low.
  • Embodiments of the present application provide a communication method, a terminal and a network-side device, which can solve the problem of communication between the terminal and the network-side device.
  • a communication method applied to a terminal, and the method includes:
  • the terminal sends a first message to the network side device, where the first message is used to request to use the request slice to establish a connection with the network side device;
  • the terminal receives the second message sent by the network side device; the second message carries information indicating whether to support the use of the request slice in the target tracking area TA.
  • a communication method which is applied to network-side devices.
  • the method includes:
  • the network side device receives the first message sent by the terminal; the first message is used to request to use the request slice to establish a connection with the network side device;
  • the network side device sends a second message to the terminal; the second message carries information indicating whether to support the use of the request slice in the target tracking area TA.
  • a communication device including:
  • a sending module configured to send a first message to the network side device, where the first message is used to request to use the request slice to establish a connection with the network side device;
  • the receiving module is configured to receive a second message sent by the network side device; the second message carries information indicating whether the request slice is supported in the target tracking area TA.
  • a communication device including:
  • the receiving module is used to receive the first message sent by the terminal; the first message is used to request to use the request slice to establish a connection with the network side device;
  • a sending module configured to send a second message to the terminal; the second message carries information indicating whether the request slice is supported in the target tracking area TA.
  • a terminal in a fifth aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following implementations are implemented: The method described in one aspect.
  • a terminal including a processor and a communication interface, wherein the communication interface is used to send a first message to a network side device, and the first message is used to request to use the request slice to establish a connection with the network side device; Receive a second message sent by the network side device; the second message carries information indicating whether to support the use of the request slice in the target tracking area TA.
  • a network side device in a seventh aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor.
  • a network side device including a processor and a communication interface, wherein the communication interface is used to receive a first message sent by the terminal; the first message is used to request to use the request slice to establish a connection with the network side device. ; Send a second message to the terminal; the second message carries information indicating whether to support the use of the request slice in the target tracking area TA.
  • a ninth aspect provides a communication system, including: a terminal and a network side device.
  • the terminal can be used to perform the communication method as described in the first aspect.
  • the network side device can be used to perform the communication method as described in the second aspect. Communication methods.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the method as described in the first aspect is implemented, or the method as described in the second aspect is implemented. methods described in this regard.
  • a chip in an eleventh aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. method, or implement a method as described in the second aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement as described in the first aspect communication method.
  • the network side device sends a second message to the terminal on whether to support the use of request slices in the target tracking area TA, so that after receiving the second message, the terminal can select and select slices based on the granularity of the TA. Using it can effectively improve the efficiency of slicing, allowing the terminal to use slicing more efficiently.
  • Figure 1a is a structural diagram of a wireless communication system applicable to the embodiment of the present application.
  • Figure 1b is a schematic diagram of a communication method provided by an embodiment of the present application.
  • FIG. 2 is one of the flow diagrams of the communication method provided by the embodiment of the present application.
  • Figure 3 is one of the schematic diagrams of the information elements of the rejection network slice selection auxiliary information of the communication method provided by the embodiment of the present application;
  • Figure 4 is one of the schematic diagrams of the network slice selection rejection auxiliary information field of the communication method provided by the embodiment of the present application;
  • Figure 5 is one of the schematic diagrams of the information elements of the extended rejection network slice selection auxiliary information of the communication method provided by the embodiment of the present application;
  • Figure 6a is one of the schematic diagrams of the partial expansion rejection network slice selection auxiliary information list field of the communication method provided by the embodiment of the present application;
  • Figure 6b is a second schematic diagram of the partial extension rejection network slice selection auxiliary information list field of the communication method provided by the embodiment of the present application;
  • Figure 7 is a second schematic diagram of the auxiliary information field for rejecting network slice selection in the communication method provided by the embodiment of the present application.
  • Figure 8 is a second schematic diagram of the information elements of the rejection network slice selection auxiliary information of the communication method provided by the embodiment of the present application.
  • Figure 9 is a third schematic diagram of the network slice selection auxiliary information field for rejecting the communication method provided by the embodiment of the present application.
  • Figure 10 is a second schematic diagram of the information elements of the extended rejection network slice selection auxiliary information of the communication method provided by the embodiment of the present application;
  • Figure 11a is the third schematic diagram of the partial extension rejection network slice selection auxiliary information list field of the communication method provided by the embodiment of the present application.
  • Figure 11b is the fourth schematic diagram of the partial extension rejection network slice selection auxiliary information list field of the communication method provided by the embodiment of the present application.
  • Figure 12 is the fourth schematic diagram of the auxiliary information field for rejecting network slice selection in the communication method provided by the embodiment of the present application.
  • Figure 13 is a schematic diagram of the network slice selection auxiliary information service area list information elements of the communication method provided by the embodiment of the present application.
  • Figure 14 is a schematic diagram of the network slice selection auxiliary information service area list field of the communication method provided by the embodiment of the present application.
  • Figure 15a is one of the schematic diagrams of the network slice selection auxiliary information service area list field of the communication method provided by the embodiment of the present application;
  • Figure 15b is the second schematic diagram of the network slice selection auxiliary information service area list field of the communication method provided by the embodiment of the present application.
  • Figure 15c is the third schematic diagram of the network slice selection auxiliary information service area list field of the communication method provided by the embodiment of the present application.
  • Figure 15d is the fourth schematic diagram of the network slice selection auxiliary information service area list field of the communication method provided by the embodiment of the present application.
  • Figure 16 is a schematic diagram of information elements that allow the expansion of the communication method provided by the embodiment of the present application to allow network slicing to select auxiliary information;
  • Figure 17 is a schematic diagram of the auxiliary information field that allows network slice selection in the communication method provided by the embodiment of the present application.
  • Figure 18 is a schematic diagram of terminal capability indication information of the communication method provided by the embodiment of the present application.
  • Figure 19 is the second schematic flowchart of the communication method provided by the embodiment of the present application.
  • Figure 20 is a schematic diagram of the interaction flow of the communication method provided by the embodiment of the present application.
  • Figure 21 is one of the structural schematic diagrams of the communication device provided by the embodiment of the present application.
  • Figure 22 is a second structural schematic diagram of a communication device provided by an embodiment of the present application.
  • Figure 23 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 24 is a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application.
  • Figure 25 is a schematic structural diagram of a network side device according to an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 1a shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • Mobile Internet Device MID
  • AR augmented reality
  • VR virtual reality
  • robots wearable devices
  • VUE vehicle-mounted equipment
  • PUE pedestrian terminal
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • PC personal computers
  • teller machines or self-service Terminal devices such as mobile phones
  • wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), Smart wristbands, smart clothing, etc.
  • the network side device 12 may include an access network device or a core network device, where the access network device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or Wireless access network unit.
  • the access network device 12 may include a base station, a WLAN access point or a WiFi node, etc.
  • the base station may be called a Node B, an evolved Node B (eNB), an access point, a Base Transceiver Station (BTS), a radio Base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Use B node, home evolved B node, Transmitting Receiving Point (TRP) or some other appropriate terminology in the field.
  • eNB evolved Node B
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESS Extended Service Set
  • Home Use B node home evolved B node
  • TRP Transmitting Receiving Point
  • Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc.
  • MME mobility management entities
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • PCF Policy Control Function
  • AMF may establish multiple TAs in an RA area.
  • AMF will allocate a Tracking Area Identity List (TAI list) to the UE (for example, up to 16).
  • TAI list is the registration area (RA) of the terminal.
  • RA registration area
  • the terminal does not need to perform registration update.
  • the terminal moves out of this RA area, the UE needs to actively initiate a mobility registration update. It can be seen that one of the purposes of the network establishing the concepts of RA and TA is to eliminate the need for the UE to frequently initiate mobility registration updates. Only after moving out of the RA does the UE need to actively initiate mobility registration updates to save network time. Signaling load.
  • the terminal will send a registration request message to the network side device, and the terminal will report the requested slice information to the network.
  • the requested slice information contains one or more single network slice selection assistance information (Single Network Slice Selection Assistance Information, S-NSSAI), the network side device determines whether it is allowed to provide services for the requested slice based on the terminal subscription status and the current network conditions. If the requested slice can be served, the slice S-NSSAI will be put into the allowed NSSAI and a reply will be sent to the terminal; if the requested slice cannot be served, the slice S-NSSAI will be put into the rejected NSSAI and returned to the terminal.
  • S-NSSAI Single Network Slice Selection Assistance Information
  • the network side device will also put the unserviceable slice information into extended rejected NSSAI reply to the terminal.
  • 5GMM capability IE terminal capability indication information
  • extended rejected NSSAI extended rejected network slice selection auxiliary information
  • the network side device may carry the cause value "the slice is not available in the current registration area", that is, the slice is not available in the entire RA.
  • the terminal initiated S-NSSAI registration in TA 1 and was rejected in TA 1.
  • the reason value used by the network side is "slice is not available in the current registration area", then the terminal cannot currently Use this slice.
  • the terminal moves to TA 2 or TA 3, these two TAs can support the slice.
  • Existing technology does not support terminals using slices in this area. The efficiency of slicing is greatly reduced. In this way, all TAs in the entire RA are unavailable, and can only be used in the following situations:
  • FIG 2 is one of the flow diagrams of the communication method provided by the embodiment of the present application. As shown in Figure 2, the method provided by this embodiment includes step S201 and step S202.
  • Step 201 The terminal sends a first message to the network side device, where the first message is used to request to use the request slice to establish a connection with the network side device.
  • the terminal sends a first message to the network side device, where the first message is used to request to use the request slice to establish a connection with the network side device; optionally, the first message includes Request slice information.
  • the request slice contains one or more S-NSSAI.
  • the network side device can determine whether the request slice can be used with the terminal based on the request slice information in the first message, the terminal contract status and the current network conditions. Establish connections and communications.
  • Step 202 The terminal receives a second message sent by the network side device; the second message carries information indicating whether to support the use of the request slice in the target tracking area TA.
  • the network side device after the network side device receives the information requesting slices sent by the terminal, the network side device sends a second message to the terminal, where the second message carries an indication whether Supports the use of request slice information in the target tracking area TA, that is, the network side device sends a second message to inform the terminal whether the request slice can be used in the tracking area TA, so that the terminal can use the granularity of the TA after receiving the second message.
  • Select and use slices It enables the terminal to use slices more efficiently, improves the efficiency of slice usage, and solves the problem that slices in all TAs under the same RA cannot be used.
  • the network side device sends the second information to the terminal, carrying information about whether to support the use of request slicing in the target tracking area TA, so that the terminal can perform slicing based on the granularity of the TA after receiving the second message. Selection and use can effectively improve the efficiency of slicing, allowing terminals to use slicing more efficiently.
  • the second message includes at least one of the following:
  • the first indication information is used to indicate that at least one first slice is not available in the current TA; where the first slice is a slice in the request slice; the target tracking area TA includes the current TA; or,
  • the second message includes at least one of the following:
  • the first TA is a TA that does not support the use of the first slice;
  • the second TA is a TA that supports the use of the second slice, and the second indication information is used to indicate that the first slice is in Not available in the first TA; wherein the first slice or the second slice is a slice in the requested slice;
  • the target tracking area TA includes the first TA or the second TA; or,
  • the second message includes at least one of the following:
  • At least one third slice information, third TA information, and third indication information is used to indicate that the third TA is a TA that supports the use of the third slice or a TA that does not support the use of the third slice;
  • the target TA includes The third TA;
  • the third slice is the slice in the request slice.
  • the network side device sends a second message to the terminal regarding whether to support the use of request slicing in the target tracking area TA, so that the terminal can perform slicing based on the granularity of the TA after receiving the second message. Selection and use improve the utilization efficiency of slices.
  • the first TA, the second TA, the third TA and the target TA can be TAs included in the current registration area, or they can be TAs included in other registration areas; optionally, a third TA
  • Each slice corresponds to one or more first TAs, and one second slice corresponds to one or more second TAs; optionally, one first TA corresponds to one or more first slices, and one second TA corresponds to one or more second TAs. Multiple second slices.
  • the second message includes at least one of the following: information about at least one first slice, first indication information; the first indication information is used to indicate that the first slice is not available in the current TA, where the current TA is The TA where the terminal is located when the terminal sends the first message to the network side device, that is, the network side device indicates that the first slice is not available in the current TA through the first indication information in the second message, so that the terminal receives the first After receiving the first indication information and the first slice information in the message, it can be determined that it cannot use the first slice in the current TA. The terminal can select other slices in the current TA to establish connection and communication with the network side device. , when the terminal moves out of the current TA, the first slice can be used again.
  • the network side device After receiving the request from the terminal, the network side device will The applicable situation of multiple TAs under the current TA is notified to the terminal by adding indication information (cause value), so that after receiving the indication information, the terminal can determine the information of the current TA Whether slices can be used in the current TA.
  • indication information cause value
  • the second message includes at least one of the following: information about at least one first slice, information about the first TA corresponding to each first slice in the at least one first slice, information about at least one second slice. information, the information of the second TA corresponding to each second slice in at least one second slice, and the second indication information; that is, the network side device uses the information of the first TA corresponding to the first slice in the second message, and the second indication information.
  • the information of the second TA and the second indication information corresponding to the two slices inform the terminal in which TAs the first slice can be used and in which TAs the second slice cannot be used, so that the terminal can according to the first information in the second message.
  • the information of the first TA corresponding to the slice, the information of the second TA corresponding to the second slice, and the second indication information are used, and the slice is selected and used based on the information of the TA where the terminal is currently located.
  • the second message includes at least one of the following: information about at least one third slice, information about the third TA, and third indication information; the third indication information is used to indicate that the third TA supports the use of the third slice.
  • the TA or the TA does not support the use of the third slice; that is, the network side device uses the third indication message in the second message to indicate which TAs support the use of the third slice and which TAs do not support the use of the third slice.
  • the terminal can determine whether the third slice can be used in the target TA to establish connection and communication with the network side device based on the third indication message in the second message
  • the target TA may be a TA in the current RA or another RA.
  • the network side device after receiving the request from the terminal, notifies the terminal of the TA list information that supports the use of slices and/or refuses to use slices based on the slice granularity based on the application of multiple TAs under the RA; the terminal receives After the TA list information that supports the use of slices and/or refuses to use slices based on the slice granularity is combined with the current TA information, it can be determined whether the slice can be used in the current TA.
  • the network side device carries indication information, slice information and/or TA information in the second message to indicate TA granular slice applicable information to the terminal. That is, the network side device after receiving the request from the terminal , depending on the applicability of slices to multiple TAs under RA, the terminal can be notified of the TA list information that supports the use of slices and/or refuses to use slices based on the slice granularity, or can also use the indication information (new cause value) to set the slice in The information that the current TA is not applicable informs the terminal.
  • the terminal can accurately determine the current TA information based on the information. Whether slices can be used in the current TA.
  • the method of the embodiment of the present application implements multiple methods to accurately indicate whether the terminal can use the requested slice in the tracking area TA, and is highly flexible.
  • the second message includes the reject network slice selection assistance information NSSAI information element IE or the first IE, and the reject NSSAI IE or the first IE includes a reject corresponding to each first slice in at least one first slice.
  • NSSAI domain; the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, first indication information; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice and first indication information.
  • the network side device may indicate to the terminal whether the use of the first slice in the first TA is supported through the reject network slice selection auxiliary information IE or the first IE in the second message; wherein the first IE may is a newly defined information element; optionally, as shown in Figure 3, the deny NSSAI IE includes at least one deny NSSAI domain corresponding to each first slice in the first slice; as shown in Figure 4, each first The reject NSSAI field corresponding to the slice includes at least one of the following: information about the first slice and first indication information; optionally, the first indication information is 0100 or 0011, indicating that the slice is not available in the current TA; optionally, When the indication information is 0000, it means that the network slice is not available in the current network or private network; when the indication information is 0001, it means that the network slice is not available in the current registration area; when the indication information is 0010, it means that the network slice is not available due to the identity of the specific network slice.
  • the terminal can determine that the first slice is not available in the current TA by rejecting the information in the NSSAI domain. Therefore, the terminal can select other slices in the request slice within the current TA to establish communication and connection with the network side device.
  • the network side device can also indicate to the terminal whether the use of the first slice in the first TA is supported through the extended reject NSSAI IE in the second message; optionally, as shown in Figure 5, the extended reject NSSAI IE Includes a partially extended deny NSSAI list field, as shown in Figure 6a and Figure 6b.
  • the partially extended deny NSSAI list field includes: a deny NSSAI field corresponding to each first slice in at least one first slice; optionally, as shown in Figure As shown in 7, the deny NSSAI field in the partial extended deny NSSAI list field includes at least one of the following: information about the first slice and first indication information; optionally, the first indication information is 0100, indicating that the slice is not available in the current TA.
  • the terminal After the terminal receives the reject NSSAI domain information in the extended reject NSSAI IE, it can determine that the first slice is not available in the current TA by rejecting the information in the NSSAI domain, so that the terminal can select the request in the current TA.
  • Other slices in the slice establish communications and connections with network-side devices.
  • the network side device indicates that the slice is not available in the current TA by carrying the information of the first slice and/or the first indication information in the reject NSSAI IE, the first IE or the extended reject NSSAI IE in the second message. Then, after receiving the second message, the terminal can determine that the first slice is not available in the current TA based on the reject NSSAI IE, the first IE or the extended reject NSSAI IE in the second message, so that the terminal can determine in the current TA
  • the TA selects other slices in the request slice to establish communication and connection with the network side device.
  • the network side device can indicate to the terminal whether request slicing can be used in the tracking area TA through multiple methods, and the flexibility is high.
  • the second message includes the reject network slice selection assistance information NSSAI information element IE or the first IE, and the reject NSSAI IE or the first IE includes a reject corresponding to each first slice in at least one first slice.
  • NSSAI domain; the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA.
  • the network side device may indicate to the terminal whether the request slice is supported for use in the target tracking area TA through the reject network slice selection auxiliary information IE or the first IE in the second message; wherein the first IE may be Newly defined information element; optionally, as shown in Figure 8, the deny NSSAI IE includes at least one deny NSSAI domain corresponding to each first slice in the first slice; as shown in Figure 9, each first slice
  • the reject NSSAI field corresponding to the slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA; optionally, the second indication information is 0100, indicating that the first slice is in the first TA is unavailable within the first TA; and then after receiving the reject NSSAI IE in the second message or the reject NSSAI domain information in the first IE, the terminal can determine that the first slice is unavailable in the first TA by rejecting the information in the NSSAI domain. , so the terminal can choose to request other slices in the slice to establish communication and connection with the network-side
  • the network side device can also indicate to the terminal whether it supports the use of request slicing in the target tracking area TA through the extended reject NSSAI IE in the second message; optionally, as shown in Figure 10, the extended reject NSSAI IE includes Partially extended deny NSSAI list fields, as shown in Figure 11a and Figure 11b.
  • Partially extended deny NSSAI list fields include: at least one first slice corresponding deny NSSAI domain; optionally, as shown in Figure 12, deny NSSAI domain Including at least one of the following: information about the first slice, second indication information, and information about the first TA; where the second indication information is 0100, indicating that the first slice is not available in the first TA; and then the terminal receives After extending the reject NSSAI domain information in the reject NSSAI IE, it can be determined that the first slice is not available in the first TA by rejecting the information in the NSSAI domain, so that the terminal can choose to request other slices in the slice to communicate with the network side.
  • the device establishes communication and connection.
  • the network side device carries the first slice information, the second indication information and/or the first TA information in the reject NSSAI IE, the first IE or the extended reject NSSAI IE in the second message, Indicates that the first slice is not available in the first TA; then, after receiving the second message, the terminal can determine that the first slice is in the first TA based on the reject NSSAI IE, the first IE or the extended reject NSSAI IE in the second message. It is not available within a TA, so the terminal can choose to request other slices in the slice to establish communication and connection with the network side device.
  • the network side device can indicate to the terminal whether request slicing can be used in the tracking area TA through multiple methods, and the flexibility is high.
  • the second message includes the NSSAI service area list IE; the NSSAI service area list IE includes at least one NSSAI service area list field, and each NSSAI service area list field includes: the NSSAI field of the third slice, the NSSAI service area
  • the list field, target timer field, and NSSAI service area list field include at least one of the following: third indication information and third TA information.
  • the network side device can indicate to the terminal whether to support the use of the third slice in the third TA through the NSSAI service area list IE in the second message; optionally, as shown in Figure 13, the NSSAI service area list IE includes At least one NSSAI service area list field. As shown in Figure 14, the NSSAI service area list field includes: the NSSAI field of the third slice, the NSSAI service area list field, and the target timer field.
  • the third indication information indicates that the third TA is a TA that does not support the use of the third slice, it carries a target timer field, and the target timer field is used to indicate that the third slice is within the time period corresponding to the target timer field.
  • the terminal may try to use the third slice in the third TA.
  • the NSSAI service area list field includes at least one of the following third indication information and third TA information.
  • the third indication information is used to indicate that the third TA is a TA that supports the use of the third slice or a TA that does not support the use of the third slice; optionally, if the third indication information is 0, it indicates that the third TA is a TA that supports the use of the third slice. For a three-slice TA, the terminal can use the third slice when it is in the third TA.
  • the terminal If the third indication information indicates 1, indicating that the third TA is a TA that does not support the use of the third slice, the terminal is in the third TA. Then the third slice cannot be used.
  • the terminal starts a timer.
  • the timer can be a default value, or it can be configured by the network side device to the terminal in the NSSAI service area list IE in the second message;
  • the third slice can be used by the terminal only when the terminal moves out of the third TA or after the timer expires. The terminal needs to select other slices to establish communication and connection with the network side device when it is in the third TA.
  • the NSSAI service area list field also includes: list type (Type of list) and number of elements (Number of elements).
  • the list type is used to indicate the type of the NSSAI service area list field, for example, represented by at least one bit, 00 represents A list of TACs belonging to one PLMN and having non-consecutive TAC values; 01 indicates a list of TACs belonging to one PLMN and having continuous TAC values; 10 indicates a list of TAIs belonging to different PLMNs; 11 indicates that all TAIs belonging to the PLMN in the registration area are in the allowed area.
  • the format of the NSSAI service area list field may be different for different list types.
  • the third indication information is used to indicate that the third TA is a TA that does not support the use of the third slice, and the number of elements is used to indicate that the use of the third slice contained in the NSSAI service area list field is not supported.
  • the number of TAs; the third indication information is used to indicate that the third TA is a TA that supports the use of the third slice, and the number of elements is used to indicate the number of TAs included in the NSSAI service area list field that support the use of the third slice.
  • tracking area 1 in Figure 15a- Figure 15c can be represented by one byte or multiple bytes, and other tracking areas are similar.
  • one line represents one byte, from left to right, from high to low. Other pictures are similar.
  • the network side device carries one or more S-NSSAI TA lists in the second message, and indicates through the indication information that the TA list is the rejected TA list rejected TAI list and/or the allowed TA list allowed TAI.
  • the rejected TA list rejected TAI list means that the TA in the rejected TA list is refused to use a certain slice
  • the allowed TA list allowed TAI list means that the TA in the allowed TA list is allowed to use a certain slice.
  • the network side device carries the third indication information and the information of the third TA in the NSSAI service area list IE in the second message, indicating that the third TA is a TA that supports the use of the third slice or does not support the use of the third slice.
  • the TA of the third slice then, after receiving the second message, the terminal can determine whether the slice is available in the third TA based on the NSSAI service area list IE in the second message, realizing the terminal's selection and selection of slices based on TA granularity. Used to improve the efficiency of slicing.
  • the second message includes an extended allowed NSSAI IE, which includes an allowed NSSAI domain for each second slice in at least one second slice; the allowed NSSAI domain corresponding to each second slice includes at least one of the following: Items: The length of the allowed NSSAI field, the NSSAI field of the second slice, and the information of the second TA.
  • the network side device can indicate to the terminal whether to support the use of the second slice in the second TA through the extended allowed NSSAI IE in the second message;
  • the extended allowed NSSAI IE includes at least A second slice corresponds to the allowed NSSAI domain;
  • the allowed NSSAI domain includes at least one of the following: the length of the allowed NSSAI field, the NSSAI field of the second slice, and the information of the second TA; then the terminal receives After extending the allowed NSSAI domain information in the Allow NSSAI IE, you can determine that the second slice is available in the second TA by allowing the information in the NSSAI domain, enabling the terminal to select and use slices based on TA granularity.
  • the network side device allows the NSSAI IE to carry the NSSAI field of the second slice and the information of the second TA through the extension in the second message, so that after receiving the second message, the terminal can
  • the extension in the message allows NSSAI IE to determine that the second slice is available in the second TA, enabling the terminal to select and use slices based on TA granularity, and improving the efficiency of slice usage.
  • the first TA includes: a TA that does not support the use of the first slice within a preset time range.
  • the first TA includes a TA that does not support the use of the first slice within the preset time range, that is, the target tracking area TA does not support the use of the first slice within the preset time range.
  • the terminal can Try to use the first slice in the target tracking area, so that the first slice is fully utilized in the target tracking area TA, and the utilization efficiency of the slice is improved.
  • the second message also includes information about the first timer; the first timer is used to indicate that the terminal can use the first slice in the first TA after the first timer expires.
  • the network side device carries the information of the first timer in the second message, where the first timer is To indicate that the terminal can use the first slice in the first TA after the first timer expires, that is, the terminal receives the second message After the first timer expires, the terminal can try to use the first slice in the first TA, so that the first slice is fully utilized in the first TA and improves the efficiency of slicing. utilization efficiency.
  • the network side device when the first TA includes a TA that does not support the use of the first slice within the preset time range, the network side device carries the information of the first timer in the second message so that the terminal can After receiving the first timer in the second message and expiration of the first timer, the terminal can try to use the first slice in the first TA, so that the first slice is fully used in the first TA. Utilization improves the utilization efficiency of slices.
  • the terminal after receiving the second message sent by the network side device, the terminal further includes:
  • the terminal sends a third message to the network side device; the third message is used to indicate that the terminal has received information indicating whether to support the use of the request slice in the target tracking area TA.
  • the terminal may send a third message to the network side device to inform the network side device that the terminal has received a message indicating whether to support the use of request slices in the tracking area TA.
  • network-side devices and terminals can establish connections and communicate based on the request slices that can be used in the target tracking area TA, improving the efficiency of using slices.
  • the terminal after receiving the second message sent by the network side device, the terminal further includes at least one of the following:
  • the terminal For each first TA or current TA, the terminal adds the information of the first slice that the first TA or current TA does not support using to the rejected slice list corresponding to the first TA or current TA;
  • the terminal For each second TA, the terminal adds the information about the second slice supported by the second TA to the allowed slice list corresponding to the second TA;
  • the terminal stores the information of the first slice under each access type and the information of the first TA that does not support the use of the first slice;
  • the terminal stores the information of the second slice under each access type and the information of the second TA that supports the use of the second slice;
  • the second timer is used to indicate that after the second timer expires, the terminal removes the first slice from the rejected slice list under the first TA or the current TA.
  • the terminal is under the first TA or the current TA.
  • the first slice can be used in .
  • the value of the second timer is the same as the value of the first timer.
  • the start time of the first timer and the second timer are the same, and the timing duration is same.
  • the second timer is not started; if the first message does not carry the first timer, the second timer is not started or the second timer is started. default value.
  • the terminal can apply the slice application information indicated in the second message based on the information indicated in the second message whether to support the use of the requested slice in the target tracking area TA.
  • the terminal can add at least one first slice to its corresponding rejected slice list under at least one first TA or the current TA, so that the terminal cannot use the first slice when it is the first TA or the current TA. slice, the terminal needs to select other slices in the requested slice for use; optionally, the terminal can store the information of at least one first slice under each access type and its corresponding at least one slice that does not support the use of the first slice.
  • the access type is a 3rd Generation Partnership Project (3GPP) access type or a non-3GPP access type, that is, the terminal can store the information about the first slice and not If the information of the first TA using the first slice is supported, the first slice cannot be used when the terminal is located in the first TA. Correspondingly, the terminal can use the requested slices except the first slice when it is located in the first TA.
  • 3GPP 3rd Generation Partnership Project
  • the terminal can store the information of the second slice under each access type and the information of the second TA that supports the use of the second slice, so that the terminal can use the second slice when it is located in the second TA, Implements the use of slices based on TA granularity, improving slice utilization efficiency; optionally, the terminal starts a second timer, and after the second timer expires, the terminal changes the first slice from the first TA or the current removed from the rejected slice list under the TA, so that the terminal can use the first slice in the first TA or the current TA, that is, after the second timer expires, the terminal can try to use the first slice in the first TA or the current TA.
  • Cutting slices enables the first slice to be fully utilized in the first TA or the current TA, thereby improving the utilization efficiency of the slices.
  • the terminal saves the first slice as a rejection slice within the current tracking area.
  • the first slice is saved based on the TA granularity, that is, the first slice is associated with the TA.
  • the terminal saves the second slice as an allowed slice in the current tracking area.
  • the second slice is saved based on the TA granularity, that is, the second slice is associated with the TA.
  • the terminal after receiving the second message sent by the network side device, the terminal can process the slice applicable information indicated in the second message, so that the terminal can, based on the slice applicable information indicated in the second message, Accurately and effectively select slices for use based on TA granularity, which improves the efficiency of slice use.
  • the sixth TA is one or more
  • the terminal can use the first slice:
  • the terminal moves out of the first TA or the current TA;
  • the terminal is in the second TA
  • the first timer is configured by the network side device
  • the second timer After the second timer expires; the second timer is started by the terminal after receiving the second message;
  • the first timer or the second timer is used to indicate that after the timer expires, the terminal can use the first slice in the first TA or the current TA.
  • embodiments of the present application may try to use the first slice when the following target conditions are met, so that the first slice can be fully utilized in the tracking area TA and improve the utilization of slices. efficiency.
  • the terminal can try to use the first slice; optionally, the terminal can try to use the first slice when it moves out of the first TA or the current TA, or when the terminal is in the second TA; it can
  • the terminal can try to use the first slice; optionally, the network side device in the second message Carrying the first timer, after the first timer or the second timer expires, the terminal can try to use the first slice; that is, when the tracking area TA where the terminal is located changes or the configuration information of the terminal changes.
  • the terminal can try to use the first slice, so that the first slice can be
  • the terminal can try to use the first slice. piece;
  • the terminal's TA in the second TA information can use the second slice.
  • the terminal moves out of the TA in the second TA information and is still under the current RA, the second slice is no longer allowed to be used, the terminal saves the second slice as a rejected slice within the current tracking area;
  • the terminal cannot use the first slice in the TA in the first TA. If the terminal is under a TA in the first TA, the terminal moves the first slice into the rejected slice list;
  • the terminal moves the second slice into the allowed slice list, and the terminal can use the second slice in the second TA.
  • the terminal when the target conditions are met, the terminal can try to use the first slice, so that the first slice can be fully utilized in the TA, effectively meeting the needs of the terminal to establish connection and communication with the network side device, and improving Improve the utilization efficiency of slices.
  • the terminal when the terminal meets at least one target condition, the terminal performs at least one of the following operations:
  • the terminal removes the first slice from the rejected slice list corresponding to the sixth TA;
  • the terminal updates the first slice to the slice that can be used in the sixth TA;
  • the terminal sends a fourth message to the network side device, where the fourth message includes at least one of the following:
  • the first capability is to receive and use information indicating whether to support the use of the requested slice in the target TA. ability.
  • the terminal can promptly update the application of its stored slices in the TA and try to request the use of the first slice in the TA, so as to improve the utilization efficiency of the TA and satisfy the requirements between the terminal and the network side. Requirements for devices to establish connections and communicate.
  • the terminal may remove the first slice from the rejected slice list under the first TA or the current TA or update the first slice to be usable within the first TA or the current TA.
  • the terminal can try to use the first slice in the first TA or the current TA, so that the first slice is fully utilized in the TA and improves the utilization efficiency of the slice; optionally, the terminal
  • the terminal can send a fourth message to the network side device, that is, send the slice information that the terminal expects to use and the terminal capability indication information as shown in Figure 18 to the network side device.
  • the terminal capability indication information is used to indicate that the terminal supports network slicing. Expand the characteristics of the TA list information so that the network side device can timely and accurately indicate to the terminal whether it supports the use of request slicing in the target tracking area TA based on the updated request slicing information.
  • the network side device if the terminal capability indication information indicates that the terminal supports the first capability, the network side device carries information indicating whether to support the use of request slices in the target tracking area TA in the second message; if the terminal capability indication information indicates that the terminal If the first capability is not supported, the network side device does not carry information indicating whether to support the use of the request slice in the target tracking area TA in the second message,
  • the terminal when the terminal meets the target conditions, the terminal can promptly update the application status of its stored slices in the TA and try to request the use of slices in the TA, which can effectively improve the utilization efficiency of slices and satisfy the needs of the terminal and the network. Requirements for side devices to establish connections and communicate.
  • the terminal receives the slice information of the first target network configuration sent by the network side device;
  • the terminal deletes the second target slice information from the rejected slice list and stops the second timer associated with the second target slice information.
  • timing; the fourth TA is the TA corresponding to the first target network.
  • the terminal when the terminal receives the new slice configuration information under the first target network (such as the public land mobile communication network PLMN or the independent non-public network SNPN) sent by the network side device, if the slice information in the rejected slice list is included in When the new slice configuration information under the target PLMN or SNPN network is included, the terminal will delete the information that does not support the use of slices in the corresponding TA from the rejected slice list, and stop the timing of its association timer, so that the terminal can based on the update
  • the final slice application information can be used accurately and effectively in TA, which improves the utilization efficiency of slices.
  • the terminal receives the slicing information of the first target network configuration sent by the network side device, and compares the slicing information in the rejected slicing list stored by the terminal itself according to the slicing information of the first target network configuration sent by the network side device.
  • the update enables the terminal to accurately and effectively use slices in the TA based on the updated slice applicable information, thereby improving the utilization efficiency of slices.
  • the terminal receives the slice information allowed by the second target network sent by the network side device;
  • the terminal deletes the third target slice information from the rejected slice list and stops the second timing associated with the third target slice information.
  • the timing of the device; the fifth TA is the TA corresponding to the second target network.
  • the terminal when the terminal receives the slice information allowed by the network under the second target network (such as the target PLMN or SNPN network) sent by the network side device, if the slice information in the rejected slice list includes the slice information under the target PLMN or SNPN network, When the slicing information is allowed by the network, the terminal will delete the information that does not support the use of slicing in the corresponding TA from the rejected slicing list, and stop the timing of its associated timer, so that the terminal can Slices are used in TA accurately and effectively based on the updated slice applicable information, thereby improving the utilization efficiency of slices.
  • the second target network such as the target PLMN or SNPN network
  • the terminal receives the slicing information allowed by the second target network sent by the network side device, and uses the slicing information allowed by the second target network sent by the network side device to slice information in the denied slicing list stored in the terminal itself.
  • the update enables the terminal to accurately and effectively use slices in the TA based on the updated slice applicable information, thereby improving the utilization efficiency of slices.
  • the first message includes at least one of the following:
  • terminal capability indication information is used to indicate whether the terminal supports the first capability.
  • the first capability is the ability to receive and use information indicating whether to support the use of requesting slices in the target TA.
  • the first message may include information requesting slices and terminal capability indication information, where the information requesting slices is the slice information that the terminal requests to use to establish a connection with the network side device;
  • the terminal capability indication information is used to indicate whether the terminal supports not using the request slice in the target TA and/or using the request slice in the target TA, so that after receiving the request slice information and the terminal capability indication information sent by the terminal, the terminal can Determine whether it is necessary to indicate to the terminal slice application information based on TA granularity and/or to accurately indicate to the terminal the application of the requested slice in the target tracking area.
  • the terminal sends a second message including request slicing information and terminal capability indication information to the network side device, so that the network side device can determine whether it is necessary to indicate to the terminal TA granularity-based slicing applicable information and based on the second message. /Or accurately indicate to the terminal the application of the request slice in the target tracking area, so that the terminal and the network side device can efficiently use the request slice to establish connection and communication.
  • Figure 19 is the second schematic flowchart of the communication method provided by the embodiment of the present application. As shown in Figure 19, the method provided by this embodiment includes:
  • Step 1901 The network side device receives the first message sent by the terminal; the first message is used to request to use the request slice to establish a connection with the network side device;
  • Step 1902 The network side device sends a second message to the terminal; the second message carries information indicating whether to support the use of the request slice in the target tracking area TA.
  • the second message includes at least one of the following:
  • the first indication information is used to indicate that at least one first slice is not available in the current TA; where the first slice is a slice in the request slice; the target tracking area TA includes the current TA; or,
  • the second message includes at least one of the following:
  • the first TA is a TA that does not support the use of the first slice
  • the second TA is a TA that supports the use of the second slice, and the second indication information is used to indicate that the first slice is not available in the first TA; where the first slice or the second slice is a slice in the requested slice; target tracking Area TA includes the first TA or the second TA; or,
  • the second message includes at least one of the following:
  • At least one third slice, third TA information, and third indication information is used to indicate that the third TA is a TA that supports the use of the third slice or a TA that does not support the use of the third slice; the target TA includes the third TA, the third slice is the slice in the request slice.
  • the second message includes a reject network slice selection auxiliary information NSSAI information element IE or a first IE, and the reject NSSAI IE or first IE includes a reject NSSAI domain corresponding to each first slice in at least one first slice.
  • the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, first indication information; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice and first indication information.
  • the second message includes a reject network slice selection auxiliary information NSSAI information element IE or a first IE
  • the reject NSSAI IE or first IE includes a reject NSSAI domain corresponding to each first slice in at least one first slice.
  • the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA.
  • the second message includes the NSSAI service area list IE; each NSSAI service area list IE includes at least one NSSAI service area list field, and the NSSAI service area list field includes: the NSSAI field of the third slice, the NSSAI service area list field , the target timer field, and the NSSAI service area list field include at least one of the following: third indication information, third TA information.
  • the second message includes an extended allowed NSSAI IE
  • the extended allowed NSSAI IE includes at least one allowed NSSAI domain corresponding to the second slice
  • the allowed NSSAI domain corresponding to each second slice includes at least one of the following: allowed NSSAI domain length, the NSSAI field of the second slice, and the information of the second TA.
  • the first TA includes: a TA that does not support the use of the first slice within a preset time range.
  • the second message also includes information about the first timer; the first timer is used to indicate that the terminal can use the first slice in the first TA after the first timer expires.
  • the network side device receives a third message sent by the terminal; the third message is used to indicate that the terminal has received information indicating whether to support the use of the request slice in the target tracking area TA.
  • the first message includes at least one of the following:
  • terminal capability indication information is used to indicate whether the terminal supports the first capability.
  • the first capability is the ability to receive and use information indicating whether to support the use of requesting slices in the target TA.
  • Step 1 The terminal sends a first message to the first core network element AMF.
  • the first message is used to establish an N1 connection between the terminal and the network.
  • the first message can be a registration request message.
  • the first message carries the following At least one:
  • the terminal capability indication information is used to indicate whether the terminal supports the first capability.
  • the first capability is a capability slice that receives and uses information indicating whether to support the use of request slices in the target TA;
  • Request slice information which contains one or more single network slice selection auxiliary information S-NSSAI;
  • the network side device When receiving a slicing request from the terminal, the network side device (for example, the first core network element AMF) performs at least one of the following operations:
  • the first core network element AMF queries the second core network element (such as the unified data management unit UDM/network slice selection network element MSSF) and confirms that the S-NSSAI in the requested slice information is currently and/or other Applicability of each TA under RA.
  • the applicable situation refers to allowing the provision of services for the requested slice or denying the provision of services for the requested slice. If the provision of services is allowed, the slice will be put into the allowed network slice selection auxiliary information field S-NSSAIallowed S-NSSAI and replied to the terminal. If it is refused, To provide services, put the slice into the rejected network slice selection auxiliary information field rejected S-NSSAI and reply to the terminal;
  • Step 3 The first core network element AMF sends a second message to the terminal.
  • the second message is used to indicate whether the N1 connection between the terminal and the network is successfully established or failed.
  • the first core network element AMF carries one or more network slice selection auxiliary information field rejected S-NSSAI in the second message.
  • the network slice selection auxiliary information field rejected S-NSSAI indicates that the slice is in the current registration area. (RA) is not available within the range, and carries the first reason value: the slice is not available in the current registration area, optionally, carries a timer a, which is used to instruct the terminal to wait for the expiration of the timer a before trying to use the slice to initiate a request;
  • the second message may include at least one of the following:
  • At least one first slice of information, first indication information or,
  • the second message includes at least one of the following:
  • the second message includes at least one of the following:
  • At least one request slice, third TA information, and third indication information At least one request slice, third TA information, and third indication information.
  • the first core network element AMF after receiving the request from the terminal, notifies the terminal of the TA list information that supports the use of slices and/or refuses to use slices based on the slice granularity based on the application of multiple TAs under the RA; After receiving the TA list information that supports the use of slices and/or refuses to use slices based on the slice granularity, the terminal combines the information of the current TA to determine whether the slice can be used in the current TA.
  • the first core network element AMF places the information that the terminal does not support the request slice in the target TA into the reject network in the registration completion message.
  • the information element of the slice selection auxiliary information and/or the information element of the extended rejection network slice selection auxiliary information and/or the newly defined first IE are carried to the terminal, and the information that the terminal supports the use of the requested slice in the target TA is placed in the registration completion.
  • the extension in the message allows the network slice to select the information element of the auxiliary information and/or carry it to the terminal in the newly defined IE;
  • the first core network element AMF places the information that the terminal does not support the use of the requested slice in the target TA into the rejection network slice selection auxiliary information in the registration rejection message.
  • the information element and/or the information element of the extension rejection network slice selection auxiliary information and/or the newly defined first IE are carried to the terminal.
  • Step 4 After the terminal receives the second message, if the second message indicates that the N1 connection between the terminal and the network is successful, and if the second message contains the first TA information and/or the second TA information based on the slice granularity and /or indication information, the terminal sends a third message to the first core network element AMF.
  • the third message is used to confirm that the terminal has received the first TA information and/or the second TA information and/or instructions based on the slice granularity.
  • Information that is, used to confirm that the terminal has received information indicating whether to support the use of request slices in the tracking area TA.
  • Step 5 After receiving the second message, the first slice cannot be used in the first TA. The terminal cannot use the slice until the timer expires or moves to the second TA range.
  • Step 6 the terminal can use the first slice, and the terminal performs at least one of the following operations:
  • the terminal sends the following instruction information to the first core network element AMF for mobility or periodic registration updates:
  • the terminal sends a fourth message to the network side device.
  • the fourth message is a request message, including at least one of the following:
  • the terminal capability indication information is used to indicate that the terminal supports the function of initiating slice requests in TAs supported by the same RA.
  • the function of initiating slice requests in TAs supported by the same RA refers to when the request When a slice is rejected in the current TA but is acceptable in other TAs under the same RA, the terminal can use request slices when moving to other TAs;
  • Request slice information, and the requested slice information contains one or more first slices
  • Step 7 After receiving the terminal message and confirming that the current network can provide services for the requested slice, the first core network element AMF indicates that the N1 connection between the terminal and the network is successful.
  • the fifth message contains the first slice information that can be used in the target tracking area; optionally, the fifth message can be a registration acceptance message;
  • Step 8 After receiving the registration acceptance message, the terminal sends a sixth message to the first core network element AMF.
  • the sixth message is used to confirm that the terminal has received the instruction indicating whether the terminal supports not using request slices and/or in the target TA. Or the request slice information is used in the target TA.
  • the sixth message may be a registration completion message.
  • the execution subject may be a virtual device.
  • a communication method performed by a virtual device is used as an example to describe the communication device provided by the embodiment of the present application.
  • Figure 21 is one of the structural schematic diagrams of a communication device provided by an embodiment of the present application. As shown in Figure 21, the communication device provided by this embodiment includes:
  • the sending module 2101 is configured to send a first message to the network side device, where the first message is used to request to use the request slice to establish a connection with the network side device;
  • the receiving module 2102 is configured to receive a second message sent by the network side device; the second message carries information indicating whether the request slice is supported in the target tracking area TA.
  • the second message includes at least one of the following:
  • the first indication information is used to indicate that at least one first slice is not available in the current TA; where the first slice is a slice in the request slice; the target tracking area TA includes the current TA; or,
  • the second message includes at least one of the following:
  • the second slice corresponds to one or more second TA information and second indication information respectively;
  • the first TA is a TA that does not support the use of the first slice;
  • the second TA is a TA that supports the use of the second slice, and the second indication information
  • the information is used to indicate that the first slice is not available in the first TA; wherein the first slice or the second slice is a slice in the requested slice;
  • the target tracking area TA includes the first TA or the second TA; or,
  • the second message includes at least one of the following:
  • At least one third slice information, third TA information, and third indication information is used to indicate that the third TA is a TA that supports the use of the third slice or a TA that does not support the use of the third slice;
  • the target TA includes The third TA and the third slice are the slices in the request slice.
  • the second message includes a reject network slice selection auxiliary information NSSAI information element IE or a first IE, and the reject NSSAI IE or first IE includes a reject NSSAI domain corresponding to each first slice in at least one first slice.
  • the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, first indication information; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice and first indication information.
  • the second message includes a reject network slice selection auxiliary information NSSAI information element IE or a first IE
  • the reject NSSAI IE or first IE includes a reject NSSAI domain corresponding to each first slice in at least one first slice.
  • the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA.
  • the second message includes the NSSAI service area list IE; the NSSAI service area list IE includes at least one NSSAI service area list field, and each NSSAI service area list field includes: the NSSAI field of the third slice, the NSSAI service area list field , the target timer field, and the NSSAI service area list field include at least one of the following: third indication information, third TA information.
  • the second message includes an extended allowed NSSAI IE
  • the extended allowed NSSAI IE includes at least one allowed NSSAI domain corresponding to the second slice
  • the allowed NSSAI domain corresponding to each second slice includes at least one of the following: allowed NSSAI domain length, the NSSAI field of the second slice, and the information of the second TA.
  • the first TA includes: a TA that does not support the use of the first slice within a preset time range.
  • the second message also includes information about the first timer; the first timer is used to indicate that the terminal can use the first slice in the first TA after the first timer expires.
  • the sending module 2101 is also configured to send a third message to the network side device; the third message is used to indicate that the terminal has received information indicating whether to support the use of the request slice in the target tracking area TA.
  • the receiving module 2102 is also configured to, for each first TA or the current TA, the terminal adds the information of the first slice that the first TA or the current TA does not support the use of to the rejection slice corresponding to the first TA or the current TA. list;
  • the terminal For each second TA, the terminal adds the information about the second slice supported by the second TA to the allowed slice list corresponding to the second TA;
  • the second timer is used to indicate that after the second timer expires, the terminal can use the first slice in the first TA or the current TA.
  • the receiving module 2102 is also configured to: for any first slice among the at least one first slice, if the first slice is included in the rejected slice list corresponding to the sixth TA, the sixth TA For one or more first TAs or any one of the current TAs, the first slice can be used when at least one of the following target conditions is met:
  • the terminal moves out of the first TA or the current TA;
  • the terminal is in the second TA
  • the first timer is configured by the network side device
  • the second timer After the second timer expires; the second timer is started by the terminal after receiving the second message;
  • the first timer or the second timer is used to indicate that after the timer expires, the terminal can use the first slice in the first TA or the current TA.
  • the receiving module 2102 is also configured to perform at least one of the following operations when at least one target condition is met:
  • the first capability is to receive and use information indicating whether to support the use of the requested slice in the target TA. ability.
  • the receiving module 2102 is also configured to receive the slice information of the first target network configuration sent by the network side device;
  • the slice information includes the second target slice information in the rejected slice list corresponding to the fourth TA
  • the second target slice information is deleted from the rejected slice list, and the second timer associated with the second target slice information is stopped.
  • Timing; the fourth TA is the TA corresponding to the first target network.
  • the receiving module 2102 is also configured to receive the slice information allowed by the second target network sent by the network side device;
  • the allowed slice information includes the third target slice information in the rejected slice list corresponding to the fifth TA
  • the third target slice information is deleted from the rejected slice list, and the second timer associated with the third target slice information is stopped.
  • timing; the fifth TA is the TA corresponding to the second target network.
  • the first message includes at least one of the following:
  • terminal capability indication information is used to indicate whether the terminal supports the first capability.
  • the first capability is the ability to receive and use information indicating whether to support the use of requesting slices in the target TA.
  • the device of this embodiment can be used to execute the method of any of the foregoing terminal-side method embodiments. Its specific implementation process and technical effects are the same as those in the first device-side method embodiment. For details, please refer to the terminal-side method embodiment. The detailed introduction will not be repeated here.
  • Figure 22 is a second structural schematic diagram of a communication device provided by an embodiment of the present application. As shown in Figure 22, the communication device provided by this embodiment includes:
  • the receiving module 2201 is used to receive the first message sent by the terminal; the first message is used to request to use the request slice to establish a connection with the network side device;
  • the sending module 2202 is configured to send a second message to the terminal; the second message carries information indicating whether the request slice is supported in the target tracking area TA.
  • the second message includes at least one of the following:
  • the first indication information is used to indicate that at least one first slice is not available in the current TA; where the first slice is a slice in the request slice; the target tracking area TA includes the current TA; or,
  • the second message includes at least one of the following:
  • the first TA is a TA that does not support the use of the first slice
  • the second TA is a TA that supports the use of the second slice, and the second indication information Used to indicate that the first slice is not available in the first TA
  • the target tracking area TA includes the first TA or the second TA; or,
  • the second message includes at least one of the following:
  • At least one third slice, third TA information, and third indication information is used to indicate that the third TA is a TA that supports the use of the third slice or a TA that does not support the use of the third slice; the target TA includes the third TA, the third slice is the slice in the request slice.
  • the second message includes a reject network slice selection auxiliary information NSSAI information element IE or a first IE, and the reject NSSAI IE or first IE includes a reject NSSAI domain corresponding to each first slice in at least one first slice.
  • the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, first indication information; and/or,
  • the second message includes the extended reject NSSAI IE, the extended reject NSSAI IE includes: a partial extended reject NSSAI list field, and the partial extended reject NSSAI list field includes: each first slice in at least one first slice The corresponding reject NSSAI domain; the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice and first indication information.
  • the second message includes a reject network slice selection auxiliary information NSSAI information element IE or a first IE
  • the reject NSSAI IE or first IE includes a reject NSSAI domain corresponding to each first slice in at least one first slice.
  • the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA.
  • the second message includes the NSSAI service area list IE; the NSSAI service area list IE includes at least one NSSAI service area list field, and each NSSAI service area list field includes: the NSSAI field of the third slice, the NSSAI service area list field , the target timer field, and the NSSAI service area list field include at least one of the following: third indication information, third TA information.
  • the second message includes an extended allowed NSSAI IE
  • the extended allowed NSSAI IE includes at least one allowed NSSAI domain corresponding to the second slice
  • the allowed NSSAI domain corresponding to each second slice includes at least one of the following: allowed NSSAI domain length, the NSSAI field of the second slice, and the information of the second TA.
  • the first TA includes: a TA that does not support the use of the first slice within a preset time range.
  • the second message also includes information about the first timer; the first timer is used to indicate that the terminal can use the first slice in the first TA after the first timer expires.
  • the receiving module 2201 is also configured to receive a third message sent by the terminal; the third message is used to indicate that the terminal has received information indicating whether to support the use of the request slice in the target tracking area TA.
  • the first message includes at least one of the following:
  • terminal capability indication information is used to indicate whether the terminal supports the first capability.
  • the first capability is the ability to receive and use information indicating whether to support the use of requesting slices in the target TA.
  • the device of this embodiment can be used to perform the method of any of the foregoing network device side method embodiments. Its specific implementation process and technical effects are the same as those in the first device side method embodiment. For details, please refer to the network device side method. The detailed introduction in the embodiment will not be repeated here.
  • the communication device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • NAS Network Attached Storage
  • this embodiment of the present application also provides a communication device 2300, including a processor 2301 and a memory 2302.
  • the memory 2302 stores programs or instructions that can be run on the processor 2301, for example, the When the communication device 2300 is a terminal, when the program or instruction is executed by the processor 2301, each step of the above communication method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 2300 is a network-side device, when the program or instruction is executed by the processor 2301, each step of the above communication method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details will not be described here.
  • Embodiments of the present application also provide a terminal, including a processor and a communication interface.
  • the communication interface is used to send a first message to a network side device.
  • the first message is used to request to use the request slice to establish a connection with the network side device; receive the network side device.
  • the second message sent; the second message carries information indicating whether the use of the request slice in the target tracking area TA is supported.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 24 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 1000 includes but is not limited to: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, processor 1010, etc. at least some parts of it.
  • the terminal 1000 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 1010 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in Figure 24 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
  • the input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042.
  • the graphics processor 10041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • the display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072 .
  • Touch panel 10071 also known as touch screen.
  • the touch panel 10071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 1001 after receiving downlink data from the network side device, can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network side device.
  • the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 1009 may be used to store software programs or instructions as well as various data.
  • the memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage program or instruction area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, image playback function, etc.), etc.
  • memory 1009 may include volatile memory or nonvolatile memory, or memory 1009 may include both volatile and nonvolatile memory.
  • non-volatile memory can also include non-volatile memory, where the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), programmable read-only memory (Programmable ROM, PROM), Erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM programmable read-only memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable programmable read-only memory
  • EPROM electrically erasable programmable read-only memory
  • flash memory electrically erasable programmable read-only memory
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • Memory 1009 in embodiments of the present application includes, but is not limited to, these and any other suitable type of memory such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, where the application processor mainly processes operating systems, user interfaces, application programs or instructions, etc. In operation, the modem processor mainly processes wireless communication signals, such as the baseband processor. It can be understood that the above modem processor may not be integrated into the processor 1010.
  • the radio frequency unit 1001 is used to send a first message to the network side device, and the first message is used to request to use the request slice to establish a connection with the network side device;
  • the second message includes at least one of the following:
  • the first indication information is used to indicate that at least one first slice is not available in the current TA; where the first slice is a slice in the request slice; the target tracking area TA includes the current TA; or,
  • the second message includes at least one of the following:
  • the second slice corresponds to one or more second TA information and second indication information respectively;
  • the first TA is a TA that does not support the use of the first slice;
  • the second TA is a TA that supports the use of the second slice, and the second indication information Information used to indicate that the first slice is in the first TA Not available within;
  • the first slice or the second slice is a slice in the request slice;
  • the target tracking area TA includes the first TA or the second TA; or,
  • the second message includes at least one of the following:
  • At least one third slice information, third TA information, and third indication information is used to indicate that the third TA is a TA that supports the use of the third slice or a TA that does not support the use of the third slice;
  • the target TA includes The third TA and the third slice are the slices in the request slice.
  • the second message includes a reject network slice selection auxiliary information NSSAI information element IE or a first IE, and the reject NSSAI IE or first IE includes a reject NSSAI domain corresponding to each first slice in at least one first slice.
  • the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, first indication information; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice and first indication information.
  • the second message includes a reject network slice selection auxiliary information NSSAI information element IE or a first IE
  • the reject NSSAI IE or first IE includes a reject NSSAI domain corresponding to each first slice in at least one first slice.
  • the reject NSSAI domain corresponding to each first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA; and/or,
  • the second message includes an extended reject NSSAI IE
  • the extended reject NSSAI IE includes: a partial extended reject NSSAI list field
  • a partial extended reject NSSAI list field includes: a reject NSSAI field corresponding to each first slice in at least one first slice; each The reject NSSAI field corresponding to the first slice includes at least one of the following: information about the first slice, second indication information, and information about the first TA.
  • the second message includes the NSSAI service area list IE; the NSSAI service area list IE includes at least one NSSAI service area list field, and each NSSAI service area list field includes: the NSSAI field of the third slice, the NSSAI service area list field , the target timer field, and the NSSAI service area list field include at least one of the following: third indication information, third TA information.
  • the second message includes an extended allowed NSSAI IE
  • the extended allowed NSSAI IE includes at least one allowed NSSAI domain corresponding to the second slice
  • the allowed NSSAI domain corresponding to each second slice includes at least one of the following: allowed NSSAI domain length, the NSSAI field of the second slice, and the information of the second TA.
  • the first TA includes: a TA that does not support the use of the first slice within a preset time range.
  • the second message also includes information about the first timer; the first timer is used to indicate that the terminal can use the first slice in the first TA after the first timer expires.
  • the radio frequency unit 1001 is also configured to send a third message to the network side device; the third message is used to indicate that the terminal has received information indicating whether to support the use of the request slice in the target tracking area TA.
  • processor 1010 is also used to
  • the terminal For each first TA or current TA, the terminal adds the information of the first slice that the first TA or current TA does not support using to the rejected slice list corresponding to the first TA or current TA;
  • the terminal For each second TA, the terminal adds the information about the second slice supported by the second TA to the allowed slice list corresponding to the second TA;
  • the second timer is used to indicate that after the second timer expires, the terminal can use the first slice in the first TA or the current TA.
  • the processor 1010 is also configured to: for any first slice among the at least one first slice, if the first slice is included in the rejected slice list corresponding to the sixth TA, the sixth TA For one or more first TAs or any one of the current TAs, the first slice can be used when at least one of the following target conditions is met:
  • the terminal moves out of the first TA or the current TA;
  • the terminal is in the second TA
  • the first timer is configured by the network side device
  • the second timer After the second timer expires; the second timer is started by the terminal after receiving the second message;
  • the first timer or the second timer is used to indicate that after the timer expires, the terminal can use the first slice in the first TA or the current TA.
  • processor 1010 is also configured to perform at least one of the following operations when at least one target condition is met:
  • the first capability is to receive and use information indicating whether to support the use of the requested slice in the target TA. ability.
  • the radio frequency unit 1001 is also configured to receive the slice information of the first target network configuration sent by the network side device;
  • the slice information includes the second target slice information in the rejected slice list corresponding to the fourth TA
  • the second target slice information is deleted from the rejected slice list, and the second timer associated with the second target slice information is stopped.
  • Timing; the fourth TA is the TA corresponding to the first target network.
  • the radio frequency unit 1001 is also configured to receive the slice information allowed by the second target network sent by the network side device;
  • the allowed slice information includes the third target slice information in the rejected slice list corresponding to the fifth TA
  • the third target slice information is deleted from the rejected slice list, and the second timer associated with the third target slice information is stopped.
  • timing; the fifth TA is the TA corresponding to the second target network.
  • the first message includes at least one of the following:
  • terminal capability indication information is used to indicate whether the terminal supports the first capability.
  • the first capability is the ability to receive and use information indicating whether to support the use of requesting slices in the target TA.
  • Embodiments of the present application also provide a network-side device, including a processor and a communication interface.
  • the communication interface is used to receive a first message sent by the terminal; the first message is used to request to use the request slice to establish a connection with the network-side device; send to the terminal The second message; the second message carries information indicating whether the request slice is supported in the target tracking area TA.
  • This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device.
  • the network side device 1100 includes: a processor 1101, a network interface 1102, and a memory 1103.
  • the network interface 1102 is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network side device 1100 in the embodiment of the present application also includes: instructions or programs stored in the memory 1103 and executable on the processor 1101.
  • the processor 1101 calls the instructions or programs in the memory 1103 to execute each of the steps shown in Figure 22.
  • the method of module execution and achieving the same technical effect will not be described in detail here to avoid duplication.
  • Embodiments of the present application also provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above communication method embodiment is implemented and the same technical effect can be achieved. , to avoid repetition, will not be repeated here.
  • Readable storage media includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks or optical disks.
  • the embodiment of the present application also provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement each process of the above communication method embodiment, and can achieve the same technology. The effect will not be described here to avoid repetition.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement each process of the above communication method embodiment, and can achieve the same technical effect, so to avoid repetition, we will not repeat them here.
  • Embodiments of the present application also provide a communication system, including: a terminal and a network-side device.
  • the terminal can be used to perform the steps of the above communication method
  • the network-side device can be used to perform the steps of the above communication method.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods of various embodiments of the present application.

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Abstract

本申请公开了一种通信方法、终端及网络侧设备，属于通信领域，本申请实施例的通信方法包括：终端向网络侧设备发送第一消息，第一消息用于请求使用请求切片与网络侧设备建立连接；终端接收网络侧设备发送的第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。

Description

通信方法、终端及网络侧设备
相关申请的交叉引用
本申请要求享有于2022年8月19日提交的名称为“通信方法、终端及网络侧设备”的中国专利申请202211003981.6的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请属于通信技术领域，具体涉及一种通信方法、终端及网络侧设备。
背景技术
在当前标准中，终端请求的切片如果被拒，实际上该切片可能只是在注册区域(Registration Area，RA)内的某个跟踪区(Registration Area，TA)中被拒绝，但网络侧会告知终端在整个RA内都无法使用该切片，以致于终端在整个RA内都无法使用该切片，只有等到相关计时器到期、终端移动出该RA或者终端关机等情况，才能再次使用该切片，导致切片的使用效率较低。
发明内容
本申请实施例提供一种通信方法、终端及网络侧设备，能够解决终端与网络侧设备通信的问题。
第一方面，提供了一种通信方法，应用于终端，该方法包括：
终端向网络侧设备发送第一消息，第一消息用于请求使用请求切片与网络侧设备建立连接；
终端接收网络侧设备发送的第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
第二方面，提供了一种通信方法，应用于网络侧设备，该方法包括：
网络侧设备接收终端发送的第一消息；第一消息用于请求使用请求切片与网络侧设备建立连接；
网络侧设备向终端发送第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
第三方面，提供了一种通信装置，包括：
发送模块，用于向网络侧设备发送第一消息，第一消息用于请求使用请求切片与网络侧设备建立连接；
接收模块，用于接收网络侧设备发送的第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
第四方面，提供了一种通信装置，包括：
接收模块，用于接收终端发送的第一消息；第一消息用于请求使用请求切片与网络侧设备建立连接；
发送模块，用于向终端发送第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
第五方面，提供了一种终端，该终端包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法。
第六方面，提供了一种终端，包括处理器及通信接口，其中，所述通信接口用于向网络侧设备发送第一消息，第一消息用于请求使用请求切片与网络侧设备建立连接；接收网络侧设备发送的第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
第七方面，提供了一种网络侧设备，该网络侧设备包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第二方面所述的方法。
第八方面，提供了一种网络侧设备，包括处理器及通信接口，其中，所述通信接口用于接收终端发送的第一消息；第一消息用于请求使用请求切片与网络侧设备建立连接；向终端发送第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
第九方面，提供了一种通信系统，包括：终端及网络侧设备，所述终端可用于执行如第一方面所述的通信方法，所述网络侧设备可用于执行如第二方面所述的通信方法。
第十方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法，或者实现如第二方面所述的方法。
第十一方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法，或实现如第二方面所述的方法。
第十二方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的通信方法。
在本申请实施例中，通过网络侧设备向终端发送是否支持在目标跟踪区TA内使用请求切片的第二消息，使得终端在接收到第二消息后就可以基于TA的粒度进行切片的选择和使用，可以有效的提升切片的使用效率，使得终端可以更加高效的使用切片。
附图说明
图1a是本申请实施例可应用的无线通信系统的结构图；
图1b是本申请实施例提供的通信方法示意图；
图2是本申请实施例提供的通信方法的流程示意图之一；
图3是本申请实施例提供的通信方法的拒绝网络切片选择辅助信息的信息元素的示意图之一；
图4是本申请实施例提供的通信方法的拒绝网络切片选择辅助信息域的示意图之一；
图5是本申请实施例提供的通信方法的扩展拒绝网络切片选择辅助信息的信息元素的示意图之一；
图6a本申请实施例提供的通信方法的部分扩展拒绝网络切片选择辅助信息列表域的示意图之一；
图6b本申请实施例提供的通信方法的部分扩展拒绝网络切片选择辅助信息列表域的示意图之二；
图7是本申请实施例提供的通信方法的拒绝网络切片选择辅助信息域的示意图之二；
图8是本申请实施例提供的通信方法的拒绝网络切片选择辅助信息的信息元素的示意图之二；
图9是本申请实施例提供的通信方法的拒绝网络切片选择辅助信息域的示意图之三；
图10是本申请实施例提供的通信方法的扩展拒绝网络切片选择辅助信息的信息元素的示意图之二；
图11a本申请实施例提供的通信方法的部分扩展拒绝网络切片选择辅助信息列表域的示意图之三；
图11b本申请实施例提供的通信方法的部分扩展拒绝网络切片选择辅助信息列表域的示意图之四；
图12是本申请实施例提供的通信方法的拒绝网络切片选择辅助信息域的示意图之四；
图13是本申请实施例提供的通信方法的网络切片选择辅助信息服务区域列表信息元素示意图；
图14是本申请实施例提供的通信方法的网络切片选择辅助信息服务区域列表域的示意图；
图15a是本申请实施例提供的通信方法的网络切片选择辅助信息服务区域列表字段的示意图之一；
图15b是本申请实施例提供的通信方法的网络切片选择辅助信息服务区域列表字段的示意图之二；
图15c是本申请实施例提供的通信方法的网络切片选择辅助信息服务区域列表字段的示意图之三；
图15d是本申请实施例提供的通信方法的网络切片选择辅助信息服务区域列表字段的示意图之四；
图16是本申请实施例提供的通信方法的扩展允许网络切片选择辅助信息的信息元素的示意图；
图17是本申请实施例提供的通信方法的允许网络切片选择辅助信息域的示意图；
图18是本申请实施例提供的通信方法的终端能力指示信息的示意图；
图19是本申请实施例提供的通信方法的流程示意图之二；
图20是本申请实施例提供的通信方法的交互流程示意图；
图21是本申请实施例提供的通信装置的结构示意图之一；
图22是本申请实施例提供的通信装置的结构示意图之二；
图23是本申请实施例提供的通信设备的结构示意图；
图24是本申请实施例提供的终端的硬件结构示意图；
图25是本申请实施例的网络侧设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6th Generation，6G)通信系统。
图1a示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(VUE)、行人终端(PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备，其中，接入网设备12也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备12可以包括基站、WLAN接入点或WiFi节点等，基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、家 用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point，TRP)或领域中其他某个合适的术语，只要达到相同的技术效果，基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例进行介绍，并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项：核心网节点、核心网功能、移动管理实体(Mobility Management Entity，MME)、接入移动管理功能(Access and Mobility Management Function，AMF)、会话管理功能(Session Management Function，SMF)、用户平面功能(User Plane Function，UPF)、策略控制功能(Policy Control Function，PCF)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function，EASDF)、统一数据管理(Unified Data Management，UDM)，统一数据仓储(Unified Data Repository，UDR)、归属用户服务器(Home Subscriber Server，HSS)、集中式网络配置(Centralized network configuration，CNC)、网络存储功能(Network Repository Function，NRF)，网络开放功能(Network Exposure Function，NEF)、本地NEF(Local NEF，或L-NEF)、绑定支持功能(Binding Support Function，BSF)、应用功能(Application Function，AF)等。需要说明的是，在本申请实施例中仅以NR系统中的核心网设备为例进行介绍，并不限定核心网设备的具体类型。
为了便于更加清晰地理解本申请各实施例，首先对一些相关的背景知识进行如下介绍。
RA和TA
在网络部署时，AMF可能在一个RA区域里建立了多个TA。当终端发起注册，AMF会给UE分配一个跟踪区列表(Tracking Area Identity List，TAI list)(例如最多16个)，这个TAI list就是终端的注册区域(RA)。在此RA内，终端无需进行注册更新，当终端移动出此RA区域时，UE需要主动发起移动性注册更新。可以看到，网络建立RA和TA的概念的目的之一是为了无需让UE频繁的发起移动性注册更新，只有在移动出了RA之后才需要UE主动发起移动性的注册更新，以节省网络的信令负载。
切片的允许和拒绝
在注册流程中，首先终端会发送注册请求消息给网络侧设备，终端会将请求切片信息上报给网络，请求切片信息中包含一个或多个单个网络切片选择辅助信息(Single Network Slice Selection Assistance Information，S-NSSAI)，网络侧设备根据终端签约情况以及当前网络状况，判断是否允许为请求切片提供服务。如果可以为请求切片提供服务，则将该切片S-NSSAI放入允许allowed NSSAI中回复给终端；如果无法为请求切片提供服务，则将该切片S-NSSAI放入拒绝rejected NSSAI中回复给终端。可选 的，如果终端在注册请求消息中的终端能力指示信息(5GMM capability IE)中指示支持扩展拒绝网络切片选择辅助信息(extended rejected NSSAI)，那么网络侧设备还会将无法服务的切片信息放入extended rejected NSSAI中回复给终端。
在回复rejected NSSAI时，网络侧设备可能会携带原因(cause)值“切片在当前注册区域不可用”，即该切片在整个RA内都是不可用的。例如，如图1b所示，终端在TA 1中发起S-NSSAI的注册，并且在TA1中被拒了，网络侧使用的原因值是“切片在当前注册区域不可用”，那么终端当前是不能使用该切片的。但是当终端移动到了TA 2或者TA 3时，这两个TA是可以支持该切片的。现有技术不支持终端在该区域使用切片。切片的使用效率就被大大降低了。这样切片整个RA中的所有TA都是不可用的，只有以下情形可以使用：
关闭终端、终端移出当前注册区域，删除包含全球用户识别卡(Universal Subscriber Identity Module，USIM)的通用集成电路卡(Universal Integrated Circuit Card，UICC)，更新具有当前独立非公共网络(Stand-alone Non-Public Network，SNPN)的独立非公共网络SNPN标识的“用户数据列表”条目，或者删除或删除被拒绝的S-NSSAI。
下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的通信方法进行详细地说明。
图2是本申请实施例提供的通信方法的流程示意图之一。如图2所示，本实施例提供的方法，包括步骤S201和步骤S202。
步骤201、终端向网络侧设备发送第一消息，第一消息用于请求使用请求切片与网络侧设备建立连接。
具体地，为了实现终端与网络侧设备的通信，终端向网络侧设备发送第一消息，其中，第一消息用于请求使用请求切片与网络侧设备建立连接；可选地，第一消息中包括请求切片的信息，请求切片中包含一个或多个S-NSSAI，进而网络侧设备就可以基于第一消息中的请求切片的信息、终端签约情况以及当前网络状况，确定是否可以使用请求切片与终端建立连接和通信。
步骤202、终端接收网络侧设备发送的第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
具体地，在当前标准中，终端请求的切片如果被拒，网络侧会告知终端在整个RA内都无法使用该切片，导致切片的使用效率较低。为了解决上述切片使用效率低的问题，本申请实施例中网络侧设备在接收到终端发送的请求切片的信息后，网络侧设备向终端发送第二消息，其中，第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息，即网络侧设备通过发送第二消息告知终端在跟踪区TA内是否可以使用请求切片，从而终端在接收到第二消息后就可以基于TA的粒度进行切片的选择和使 用，使得终端可以更加高效的使用切片，提升了切片的使用效率，解决了在同一RA下所有TA内切片均无法使用的问题。
上述实施例的方法，通过网络侧设备向终端发送第二信息，携带是否支持在目标跟踪区TA内使用请求切片的信息，使得终端在接收到第二消息后就可以基于TA的粒度进行切片的选择和使用，可以有效的提升切片的使用效率，使得终端可以更加高效的使用切片。
在一实施例中，第二消息包括以下至少一项：
至少一个第一切片的信息、第一指示信息；第一指示信息用于指示至少一个第一切片在当前TA内不可用；其中，第一切片为请求切片中的切片；目标跟踪区TA包括当前TA；或，
第二消息包括以下至少一项：
至少一个第一切片的信息、至少一个第一切片中每个第一切片对应的第一TA的信息、至少一个第二切片的信息、至少一个第二切片中每个第二切片对应的第二TA的信息、第二指示信息；第一TA为不支持使用第一切片的TA；第二TA为支持使用第二切片的TA，第二指示信息用于指示第一切片在第一TA内不可用；其中，第一切片或第二切片为请求切片中的切片；目标跟踪区TA包括第一TA或第二TA；或，
第二消息包括以下至少一项：
至少一个第三切片的信息、第三TA的信息、第三指示信息；第三指示信息用于指示第三TA为支持使用第三切片的TA或不支持使用第三切片的TA；目标TA包括第三TA；第三切片为请求切片中的切片。
具体地，本申请实施例中，网络侧设备通过向终端发送是否支持在目标跟踪区TA内使用请求切片的第二消息，使得终端在接收到第二消息后就可以基于TA的粒度进行切片的选择和使用，提高了切片的利用效率。可选地，本申请实施例中第一TA、第二TA、第三TA和目标TA可以为当前注册区域所包含的TA，也可以是其他注册区域所包含的TA；可选地，一个第一切片对应一个或多个第一TA、一个第二切片对应一个或多个第二TA；可选地，一个第一TA对应一个或多个第一切片、一个第二TA对应一个或多个第二切片。
可选地，第二消息中包括以下至少一项：至少一个第一切片的信息、第一指示信息；第一指示信息用于指示第一切片在当前TA内不可用其中，当前TA为终端向网络侧设备发送第一消息时终端所处的TA，即网络侧设备通过第二消息中的第一指示信息，指示第一切片在当前TA内不可用，从而使得终端在接收到第二消息中的第一指示信息和第一切片的信息后，就可以确定其在当前TA内不可以使用第一切片，终端可以在当前TA内选择其他切片与网络侧设备建立连接和通信，当终端移出当前TA时，第一切片则可以被再次使用。也就是网络侧设备在收到终端的请求之后，根据切片在RA 下的多个TA的适用情况，通过新增指示信息(原因cause值)将切片在当前TA不适用的信息告知终端，从而终端在收到指示信息之后，结合当前所在的TA信息，就可以确定是否可以在当前的TA中使用切片。
可选地，第二消息中包括以下至少一项：至少一个第一切片的信息、至少一个第一切片中每个第一切片对应的第一TA的信息、至少一个第二切片的信息、至少一个第二切片中每个第二切片对应的第二TA的信息、第二指示信息；也就是网络侧设备通过第二消息中的第一切片对应的第一TA的信息、第二切片对应的第二TA的信息及第二指示信息，告知终端第一切片在哪些TA可以使用及第二切片在哪些TA不可以使用，从而使得终端可以根据第二消息中的第一切片对应的第一TA的信息、第二切片对应的第二TA的信息及第二指示信息，并基于终端目前所在的TA信息，进行切片的选择和使用。
可选地，第二消息中包括以下至少一项：至少一个第三切片的信息、第三TA的信息、第三指示信息；第三指示信息用于指示第三TA为支持使用第三切片的TA或不支持使用第三切片的TA；也就是网络侧设备通过第二消息中的第三指示消息，指示哪些TA为支持使用第三切片的TA，哪些TA为不支持使用第三切片的TA，从而使得终端在接收到第二消息中的第三指示消息后，就可以基于第二消息中的第三指示消息确定是否可以在目标TA中使用第三切片与网络侧设备建立连接和通信，可选地，目标TA可以为当前RA或其它RA中的TA。即网络侧设备在收到终端的请求之后，根据切片在RA下的多个TA的适用情况，将基于切片粒度的支持使用切片和/或拒绝使用切片的TA列表信息告知终端；终端在收到基于切片粒度的支持使用切片和/或拒绝使用切片的TA列表信息之后，结合当前所在的TA信息，就可以确定是否可以在当前的TA中使用切片。
上述实施例的方法，网络侧设备通过在第二消息中携带指示信息、切片信息和/或TA信息，向终端进行TA粒度的切片适用信息指示，也就是网络侧设备在收到终端的请求之后，根据切片在RA下的多个TA的适用情况，可以将基于切片粒度的支持使用切片和/或拒绝使用切片的TA列表信息告知终端，也可以通过指示信息(新增cause值)将切片在当前TA不适用的信息告知终端进而终端在接收到指示信息和/或基于切片粒度的支持使用切片和/或拒绝使用切片的TA列表信息之后，终端就可以结合当前所在的TA信息，准确的确定是否可以在当前的TA中使用切片。本申请实施例的方法实现了多种方式对终端在跟踪区TA内是否可以使用请求切片的准确指示，灵活性较高。
在一实施例中，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝 NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第一指示信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第一指示信息。
具体地，网络侧设备可以通过第二消息中的拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，向终端指示是否支持在第一TA内使用第一切片；其中，第一IE可以为新定义的信息元素；可选地，如图3所示，拒绝NSSAI IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；如图4所示，各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第一指示信息；可选地，第一指示信息为0100或0011，指示切片在当前TA不可用；可选地，当指示信息为0000时，表示网络切片在当前网络或专网不可用；当指示信息为0001时，表示网络切片在当前注册区域不可用；当指示信息为0010时，表示由于特定网络切片的身份验证和授权失败或已撤销，切片不可用；进而终端在接收到拒绝NSSAI IE或第一IE中的拒绝NSSAI域信息后，就可以通过拒绝NSSAI域中的信息确定第一切片在当前TA不可用，从而终端也就可以在当前TA内选择请求切片中的其他切片与网络侧设备建立通信和连接。
可选地，网络侧设备也可以通过第二消息中的扩展拒绝NSSAI IE，向终端指示是否支持在第一TA内使用第一切片；可选地，如图5所示，扩展拒绝NSSAI IE包括部分扩展拒绝NSSAI列表域，如图6a、图6b所示，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；可选地，如图7所示，部分扩展拒绝NSSAI列表域中的拒绝NSSAI域包括以下至少一项：第一切片的信息、第一指示信息；可选地，第一指示信息为0100，指示切片在当前TA不可用；进而终端在接收到扩展拒绝NSSAI IE中的拒绝NSSAI域信息后，就可以通过拒绝NSSAI域中的信息确定第一切片在当前TA不可用，从而终端也就可以在当前TA内选择请求切片中的其他切片与网络侧设备建立通信和连接。
上述实施例的方法，网络侧设备通过在第二消息中的拒绝NSSAI IE、第一IE或扩展拒绝NSSAI IE中携带第一切片的信息和/或第一指示信息，指示切片在当前TA不可用；进而终端在接收到第二消息后，就可以基于第二消息中的拒绝NSSAI IE、第一IE或扩展拒绝NSSAI IE确定第一切片在当前TA不可用，从而终端也就可以在当前TA内选择请求切片中的其他切片与网络侧设备建立通信和连接。本申请实施例中网络侧设备可以通过多种方式向终端指示在跟踪区TA内是否可以使用请求切片，灵活性较高。
在一实施例中，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息。
具体地，网络侧设备可以通过第二消息中的拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，向终端指示是否支持在目标跟踪区TA内使用请求切片；其中，第一IE可以为新定义的信息元素；可选地，如图8所示，拒绝NSSAI IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；如图9所示，各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息；可选地，第二指示信息为0100，指示第一切片在第一TA内不可用；进而终端在接收到第二消息中的拒绝NSSAI IE或第一IE中的拒绝NSSAI域信息后，就可以通过拒绝NSSAI域中的信息确定第一切片在第一TA内不可用，从而终端也就可以选择请求切片中的其他切片与网络侧设备建立通信和连接。
可选地，网络侧设备也可以通过第二消息中的扩展拒绝NSSAI IE，向终端指示是否支持在目标跟踪区TA内使用请求切片；可选地，如图10所示，扩展拒绝NSSAI IE包括部分扩展拒绝NSSAI列表域，如图11a、图11b所示，部分扩展拒绝NSSAI列表域包括：至少一个第一切片分别对应的拒绝NSSAI域；可选地，如图12所示，拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息；其中，第二指示信息为0100，指示第一切片在第一TA内不可用；进而终端在接收到扩展拒绝NSSAI IE中的拒绝NSSAI域信息后，就可以通过拒绝NSSAI域中的信息确定第一切片在第一TA内不可用，从而终端也就可以选择请求切片中的其他切片与网络侧设备建立通信和连接。
上述实施例的方法，网络侧设备通过在第二消息中的拒绝NSSAI IE、第一IE或扩展拒绝NSSAI IE中携带第一切片的信息、第二指示信息和/或第一TA的信息，指示第一切片在第一TA内不可用；进而终端在接收到第二消息后，就可以基于第二消息中的拒绝NSSAI IE、第一IE或扩展拒绝NSSAI IE确定第一切片在第一TA内不可用，从而终端也就可以选择请求切片中的其他切片与网络侧设备建立通信和连接。本申请实施例中网络侧设备可以通过多种方式向终端指示在跟踪区TA内是否可以使用请求切片，灵活性较高。
在一实施例中，第二消息包括NSSAI服务区域列表IE；NSSAI服务区域列表IE中包括至少一个NSSAI服务区域列表域，每个NSSAI服务区域列表域包括：第三切片的NSSAI字段、NSSAI服务区域列表字段、目标计时器字段，NSSAI服务区域列表字段包括以下至少一项：第三指示信息、第三TA的信息。
具体地，网络侧设备可以通过第二消息中的NSSAI服务区域列表IE，向终端指示是否支持在第三TA内使用第三切片；可选地，如图13所示NSSAI服务区域列表IE中包括至少一个NSSAI服务区域列表域，如图14所示NSSAI服务区域列表域包括：第三切片的NSSAI字段、NSSAI服务区域列表字段、目标计时器字段。可选地，当第三指示信息指示第三TA为不支持使用第三切片的TA时携带目标计时器字段，目标计时器字段用于指示在目标计时器字段对应的时间段内第三切片在第三TA内不可用，在目标计时器字段对应的时间段之后，终端可尝试在第三TA内使用第三切片。可选地，如图15a-图15d所示，NSSAI服务区域列表字段包括以下至少一项第三指示信息、第三TA的信息。其中，第三指示信息用于指示第三TA为支持使用第三切片的TA或不支持使用第三切片的TA；可选地，若第三指示信息为0，指示第三TA为支持使用第三切片的TA，则终端处于第三TA时则可以使用该第三切片，若第三指示信息指示为1，指示第三TA为不支持使用第三切片的TA，则终端处于第三TA时则不可以使用该第三切片，可选地，终端启动计时器，计时器可以为默认设置的值，也可以是网络侧设备在第二消息中的NSSAI服务区域列表IE中配置给终端的；可选地，只有当终端移动出第三TA时或者计时器到期之后第三切片才能被终端使用，终端需要在处于第三TA时选择其他切片与网络侧设备建立通信和连接。可选地，NSSAI服务区域列表域还包括：列表类型(Type of list)和元素数量(Number of elements)，列表类型用于指示NSSAI服务区域列表域的类型，例如通过至少一个比特表示，00表示属于一个PLMN且具有非连续TAC值的TAC列表；01表示属于一个PLMN且具有连续TAC值的TAC列表；10表示属于不同PLMN的TAI列表；11表示注册区域中属于PLMN的所有TAI都在允许区域内。例如对于不同的列表类型，NSSAI服务区域列表字段的格式可能不同。如图15a、图15b所示，在第三指示信息用于指示第三TA为不支持使用第三切片的TA，元素数量用于指示NSSAI服务区域列表域中所包含的不支持使用第三切片的TA的数量；在第三指示信息用于指示第三TA为支持使用第三切片的TA，元素数量用于指示NSSAI服务区域列表域中所包含的支持使用第三切片的TA的数量。
图15a-图15c中跟踪区1的信息可以通过一个字节或多个字节表示，其它跟踪区类似，图15a-图15c中一行表示一个字节，从左到右表示从高位到低位，其它图类似。
例如，网络侧设备在第二消息中携带一个或多个S-NSSAI的TA列表，并通过指示信息指示TA列表为拒绝TA列表rejected TAI list和/或允许TA列表allowed TAI  list，可选地，拒绝TA列表rejected TAI list表示在该拒绝TA列表中的TA中拒绝使用某个切片，允许TA列表allowed TAI list表示在该允许TA列表中的TA中允许某个切片使用。
上述实施例的方法，网络侧设备通过在第二消息中的NSSAI服务区域列表IE中携带第三指示信息、第三TA的信息，指示第三TA为支持使用第三切片的TA或不支持使用第三切片的TA；进而终端在接收到第二消息后，就可以基于第二消息中的NSSAI服务区域列表IE确定在第三TA内切片是否可用，实现了终端基于TA粒度对切片的选择和使用，提高了切片的使用效率。
在一实施例中，第二消息包括扩展允许NSSAI IE，扩展允许NSSAI IE中包括至少一个第二切片中每个第二切片的允许NSSAI域；各个第二切片对应的允许NSSAI域包括以下至少一项：允许NSSAI域的长度、第二切片的NSSAI字段、第二TA的信息。
具体地，网络侧设备可以通过第二消息中的扩展允许NSSAI IE，向终端指示是否支持在第二TA内使用第二切片；可选地，如图16所示，扩展允许NSSAI IE中包括至少一个第二切片分别对应的允许NSSAI域；如图17所示，允许NSSAI域包括以下至少一项：允许NSSAI域的长度、第二切片的NSSAI字段、第二TA的信息；进而终端在接收到扩展允许NSSAI IE中的允许NSSAI域信息后，就可以通过允许NSSAI域中的信息确定第二切片在第二TA内可用，实现了终端基于TA粒度对切片的选择和使用。
上述实施例的方法，网络侧设备通过在第二消息中的扩展允许NSSAI IE中携带第二切片的NSSAI字段、第二TA的信息，使得终端在接收到第二消息后，就可以基于第二消息中的扩展允许NSSAI IE确定第二切片在第二TA内可用，实现了终端基于TA粒度对切片的选择和使用，提高了切片的使用效率。
在一实施例中，第一TA包括：在预设时间范围内不支持使用第一切片的TA。
具体地，第一TA包括在预设时间范围内不支持使用第一切片的TA，也就是在预设时间范围内目标跟踪区TA不支持使用第一切片，预设时间范围后终端可以尝试在目标跟踪区内使用第一切片，使得第一切片在目标跟踪区TA内得到了充分的利用，提高了切片的利用效率。
可选地，第二消息还包括第一计时器的信息；第一计时器用于指示在第一计时器到期后终端在第一TA中可使用第一切片。
具体地，在第一TA包括在预设时间范围内不支持使用第一切片的TA的情况下，网络侧设备通过在第二消息中携带第一计时器的信息，其中，第一计时器用于指示在第一计时器到期后终端在第一TA中可使用第一切片，也就使得终端在接收到第二消息 中的第一计时器并在第一计时器到期后，终端就可以尝试在第一TA中使用第一切片，使得第一切片在第一TA内得到了充分的利用，提高了切片的利用效率。
上述实施例的方法，在第一TA包括在预设时间范围内不支持使用第一切片的TA的情况下，网络侧设备通过在第二消息中携带第一计时器的信息，使得终端在接收到第二消息中的第一计时器并在第一计时器到期后，终端就可以尝试在第一TA中使用第一切片，使得第一切片在第一TA内得到了充分的利用，提高了切片的利用效率。
在一实施例中，终端接收网络侧设备发送的第二消息之后，还包括：
终端向网络侧设备发送第三消息；第三消息用于指示终端已接收到用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
具体地，终端接收网络侧设备发送的第二消息之后，终端可以向网络侧设备发送第三消息，用于告知网络侧设备终端已接收到用于指示是否支持在跟踪区TA内使用请求切片的信息，进而网络侧设备和终端就可以基于目标跟踪区TA内可以使用的请求切片建立连接及通信，提高了切片的使用效率。
在一实施例中，终端接收网络侧设备发送的第二消息之后，还包括以下至少一项：
针对每个第一TA或当前TA，终端将第一TA或当前TA不支持使用的第一切片的信息加入第一TA或当前TA对应的拒绝切片列表；
针对每个第二TA，终端将第二TA支持使用的第二切片的信息加入第二TA对应的允许切片列表；
终端存储每一种接入类型下第一切片的信息及不支持使用第一切片的第一TA的信息；
终端存储每一种接入类型下第二切片的信息及支持使用第二切片的第二TA的信息；
启动第二计时器；第二计时器用于指示在第二计时器到期后，终端将第一切片从第一TA或当前TA下的拒绝切片列表中移出，终端在第一TA或当前TA中可使用第一切片。
可选地，如果第一消息中携带了第一计时器，则第二计时器的值和第一计时器的值相同，例如第一计时器和第二计时器的起始时间相同，计时时长相同。特别的，如果第一计时器的值为0或者负值，则不启动第二计时器；如果第一消息中没有携带第一计时器，则不启动第二计时器或者启动第二计时器为默认值。
具体地，终端在接收到网络侧设备发送的第二消息后，就可以基于第二消息中指示的是否支持在目标跟踪区TA内使用请求切片的信息，对第二消息中指示的切片适用信息进行处理，可选地，终端可以将至少一个第一切片加入其对应的至少一个第一TA或当前TA下的拒绝切片列表，从而终端在第一TA或当前TA时不可以使用第一切 片，终端需要选择请求切片中的其他切片进行使用；可选地，终端可以存储每一种接入类型下至少一个第一切片的信息及其对应的至少一个不支持使用第一切片的第一TA的信息，可选地，接入类型为第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)接入类型或非3GPP接入类型，即终端可以存储第一切片的信息及不支持使用第一切片的第一TA的信息，则当终端位于第一TA时不可以使用第一切片，相应的，终端位于第一TA时可以使用请求切片中除过第一切片外其他的切片；可选地，终端可以存储每一种接入类型下第二切片的信息及支持使用第二切片的第二TA的信息，从而终端在位于第二TA时可以使用第二切片，实现了基于TA粒度对切片的使用，提高了切片的利用效率；可选地，终端启动第二计时器，并在第二计时器到期后，终端将第一切片从第一TA或当前TA下的拒绝切片列表中移出，从而终端在第一TA或当前TA中可使用第一切片，也就是在第二计时器到期后，终端可以尝试在第一TA或当前TA中使用第一切片，使得第一切片在第一TA或当前TA内得到了充分的利用，提高了切片的利用效率。
例如，终端将第一切片保存为在当前跟踪区域内的拒绝切片，对于每一种接入类型，第一切片是基于TA粒度进行保存的，即第一切片与TA关联。
例如，终端将第二切片保存为在当前跟踪区域内的允许切片，对于每一种接入类型，第二切片是基于TA粒度进行保存的，即第二切片与TA关联。
上述实施例的方法，终端在接收到网络侧设备发送的第二消息后，就可以对第二消息中指示的切片适用信息进行处理，从而使得终端可以基于第二消息中指示的切片适用信息，基于TA粒度准确有效的选择切片进行使用，提高了切片的使用效率。
在一实施例中，针对至少一个第一切片中的任一第一切片，在第一切片包括在第六TA对应的拒绝切片列表中的情况下，第六TA为一个或多个第一TA或当前TA中的任一TA，终端在满足以下至少一项目标条件时，终端可使用第一切片：
终端关机重启之后；
终端移出第一TA或当前TA；
终端处于第二TA内；
终端的全球用户识别卡USIM移除之后；
终端所在的当前网络带有网络标识的签约数据更新之后；
第一计时器到期后；第一计时器为网络侧设备配置的；
第二计时器到期后；第二计时器为终端在接收到第二消息后启动的；
第一计时器或第二计时器用于指示计时器到期后，终端在第一TA或当前TA中可使用第一切片。
具体地，为了提高切片的利用效率，本申请实施例在满足如下目标条件时，可以尝试使用第一切片，使得第一切片在跟踪区TA内得到充分的利用，提高了切片的利用 效率。可选地，在终端关机重启之后，终端可以尝试使用第一切片；可选地，终端在移出第一TA或当前TA，或终端处于第二TA内时可以尝试使用第一切片；可选地，终端的全球用户识别卡USIM移除之后或终端所在的当前网络带有网络标识的签约数据更新之后，终端可以尝试使用第一切片；可选地，网络侧设备在第二消息中携带第一计时器，在第一计时器或第二计时器到期后，终端可以尝试使用第一切片；也就是在终端所在的跟踪区TA发生变化或终端的配置信息发生变化的情况下，终端可以尝试使用第一切片，使得第一切片在TA内得到充分的利用，有效满足终端与网络侧设备建立连接和通信的需求，提高了切片的利用效率。
例如，如果收到基于切片粒度的第一TA信息，终端在第一TA信息中的TA无法使用第一切片，当终端移动出第一TA信息中的TA时，终端可以尝试使用第一切片；
如果收到基于切片粒度的第二TA信息，终端在第二TA信息中的TA可以使用第二切片，当终端移动出第二TA信息中的TA时并且依旧处于当前的RA下，第二切片不再被允许使用，终端将第二切片存为在当前跟踪区域内的拒绝切片；
若收到基于切片粒度的第一TA信息，终端在第一TA中的TA中无法使用第一切片。若终端处于第一TA中的TA下，则终端将第一切片移入拒绝切片列表中；
若收到基于切片粒度的第二TA信息，如果终端处于第二TA信息中的TA下，则终端将第二切片移入允许切片列表中，终端在第二TA中可以使用第二切片。
上述实施例的方法，在满足目标条件时，终端可以通过尝试使用第一切片，使得第一切片在TA内得到充分的利用，有效满足终端与网络侧设备建立连接和通信的需求，提高了切片的利用效率。
在一实施例中，在终端满足至少一项目标条件的情况下，终端执行以下至少一项操作：
终端将第一切片从第六TA对应的拒绝切片列表中移出；
终端将第一切片更新为第六TA内可使用的切片；
终端向网络侧设备发送第四消息，第四消息包括以下至少一项：
期望使用的第一目标切片信息、终端能力指示信息；终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力。
具体地，在终端满足目标条件的情况下，终端可以及时更新自身存储的切片在TA内的适用情况并尝试请求在TA内使用第一切片，以提高TA的利用效率，满足终端与网络侧设备建立连接和通信的需求。可选地，在满足目标条件的情况下，终端可以将第一切片从第一TA或当前TA下的拒绝切片列表中移出或将第一切片更新为第一TA或当前TA内可使用的切片，进而终端也就可以尝试在第一TA或当前TA中使用第一切片，使得第一切片在TA中得到了充分的利用，提高了切片的利用效率；可选地，终 端可以向网络侧设备发送第四消息，即将终端期望使用的切片信息和如图18所示的终端能力指示信息发送至网络侧设备，可选地，终端能力指示信息用于表征终端支持网络切片拓展TA列表信息的特性，从而网络侧设备基于更新后的请求切片信息就可以及时准确地向终端指示是否支持在目标跟踪区TA内使用请求切片。
可选地，如果终端能力指示信息指示终端支持第一能力，则网络侧设备在第二消息中携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息；如果终端能力指示信息指示终端不支持第一能力，则网络侧设备在第二消息中不携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息，
上述实施例的方法，在终端满足目标条件的情况下，终端可以及时更新自身存储的切片在TA内的适用情况并尝试请求在TA内使用切片，可以有效提高切片的利用效率，满足终端与网络侧设备建立连接和通信的需求。
在一实施例中，终端接收网络侧设备发送的第一目标网络配置的切片信息；
在切片信息中包括第四TA下的拒绝切片列表中的第二目标切片信息，则终端从拒绝切片列表中将第二目标切片信息删除，并停止与第二目标切片信息关联的第二计时器的计时；第四TA为第一目标网络对应的TA。
具体地，当终端接收到网络侧设备发送的第一目标网络(例如公用陆地移动通信网PLMN或者独立非公共网络SNPN)下的新的切片配置信息时，如果拒绝切片列表中的切片信息包括在目标PLMN或者SNPN网络下的新的切片配置信息中时，则终端从拒绝切片列表中将不支持在相应TA中使用切片的信息删除，并停止其关联计时器的计时，从而使得终端可以基于更新后的切片适用信息准确有效的在TA内进行切片的使用，提高了切片的利用效率。
上述实施例的方法，终端通过接收网络侧设备发送的第一目标网络配置的切片信息，并根据网络侧设备发送的第一目标网络配置的切片信息对终端自身存储的拒绝切片列表中的切片信息进行更新，使得终端可以基于更新后的切片适用信息准确有效的在TA内进行切片的使用，提高了切片的利用效率。
在一实施例中，终端接收网络侧设备发送的第二目标网络允许的切片信息；
在允许的切片信息中包括第五TA下的拒绝切片列表中的第三目标切片信息，则终端拒绝切片列表中将第三目标切片信息删除，并停止与第三目标切片信息关联的第二计时器的计时；第五TA为第二目标网络对应的TA。
具体地，当终端接收到网络侧设备发送的第二目标网络(例如目标PLMN或者SNPN网络)下的网络允许的切片信息时，如果拒绝切片列表中的切片信息包括在目标PLMN或者SNPN网络下的网络允许的切片信息中时，则终端从拒绝切片列表中将不支持在相应TA中使用切片的信息删除，并停止其关联计时器的计时，从而使得终端可 以基于更新后的切片适用信息准确有效的在TA内进行切片的使用，提高了切片的利用效率。
上述实施例的方法，终端通过接收网络侧设备发送的第二目标网络允许的切片信息，并根据网络侧设备发送的第二目标网络允许的切片信息对终端自身存储的拒绝切片列表中的切片信息进行更新，使得终端可以基于更新后的切片适用信息准确有效的在TA内进行切片的使用，提高了切片的利用效率。
在一实施例中，第一消息包括以下至少一项：
请求切片的信息、终端能力指示信息；终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力。
具体地，终端在向网络侧设备发送第一消息时，第一消息中可包括请求切片的信息和终端能力指示信息，其中请求切片的信息为终端请求使用与网络侧设备建立连接的切片信息；终端能力指示信息用于指示终端是否支持在目标TA内不使用请求切片和/或在目标TA内使用请求切片，从而终端在接收到终端发送的请求切片的信息和终端能力指示信息后，就可以确定是否需要向终端指示基于TA粒度的切片适用信息和/或向终端准确的指示请求切片在目标跟踪区的适用情况。
上述实施例的方法，终端通过向网络侧设备发送包括请求切片信息和终端能力指示信息的第二消息，使得网络侧设备可以基于第二消息确定是否需要向终端指示基于TA粒度的切片适用信息和/或向终端准确的指示请求切片在目标跟踪区的适用情况，从而使得终端和网络侧设备可以高效的利用请求切片建立连接和通信。
图19是本申请实施例提供的通信方法的流程示意图之二。如图19所示，本实施例提供的方法，包括：
步骤1901、网络侧设备接收终端发送的第一消息；第一消息用于请求使用请求切片与网络侧设备建立连接；
步骤1902、网络侧设备向终端发送第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
可选地，第二消息包括以下至少一项：
至少一个第一切片的信息、第一指示信息；第一指示信息用于指示至少一个第一切片在当前TA内不可用；其中，第一切片为请求切片中的切片；目标跟踪区TA包括当前TA；或，
第二消息包括以下至少一项：
至少一个第一切片的信息、至少一个第一切片中每个第一切片对应的一个或多个第一TA的信息、至少一个第二切片的信息、至少一个第二切片中每个第二切片对应的一个或多个第二TA的信息、第二指示信息；第一TA为不支持使用第一切片的TA； 第二TA为支持使用第二切片的TA，第二指示信息用于指示第一切片在第一TA内不可用；其中，第一切片或第二切片为请求切片中的切片；目标跟踪区TA包括第一TA或第二TA；或，
第二消息包括以下至少一项：
至少一个第三切片、第三TA的信息、第三指示信息；第三指示信息用于指示第三TA为支持使用第三切片的TA或不支持使用第三切片的TA；目标TA包括第三TA，第三切片为请求切片中的切片。
可选地，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第一指示信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第一指示信息。
可选地，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息。
可选地，第二消息包括NSSAI服务区域列表IE；每个NSSAI服务区域列表IE中包括至少一个NSSAI服务区域列表域，NSSAI服务区域列表域包括：第三切片的NSSAI字段、NSSAI服务区域列表字段、目标计时器字段，NSSAI服务区域列表字段包括以下至少一项：第三指示信息、第三TA的信息。
可选地，第二消息包括扩展允许NSSAI IE，扩展允许NSSAI IE中包括至少一个第二切片分别对应的允许NSSAI域；各个第二切片对应的允许NSSAI域包括以下至少一项：允许NSSAI域的长度、第二切片的NSSAI字段、第二TA的信息。
可选地，第一TA包括：在预设时间范围内不支持使用第一切片的TA。
可选地，第二消息还包括第一计时器的信息；第一计时器用于指示在第一计时器到期后终端在第一TA中可使用第一切片。
可选地，网络侧设备接收终端发送的第三消息；第三消息用于指示终端已接收到用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
可选地，第一消息包括以下至少一项：
请求切片的信息、终端能力指示信息；终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力。
示例性的，本申请实施例提供的通信方法的交互流程示意图之一如图20所示：
步骤1、终端向第一核心网网元AMF发送第一消息，第一消息用于建立终端与网络之间的N1连接，可选地，第一消息可以为注册请求消息，第一消息携带以下至少一项：
(1)终端能力指示信息，终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力片；
(2)请求切片信息，请求切片信息中包含一个或多个单个网络切片选择辅助信息S-NSSAI；
网络侧设备(例如第一核心网网元AMF)在收到终端的切片请求时，执行如下至少一项操作：
步骤2、第一核心网网元AMF向第二核心网网元(例如统一数据管理单元UDM/网路切片选择网元MSSF)查询并确认请求切片信息中的S-NSSAI在当前和/或其他RA下的每一个TA的适用情况。其中，适用情况指允许为请求切片提供服务或拒绝为请求切片提供服务，如果允许提供服务，则将该切片放入允许网络切片选择辅助信息域S-NSSAIallowed S-NSSAI中回复给终端，如果拒绝提供服务，则将该切片放入拒绝网络切片选择辅助信息域rejected S-NSSAI中回复给终端；
步骤3、第一核心网网元AMF向终端发送第二消息，第二消息用于指示终端与网络之间的N1连接建立成功或者建立失败。
可选地，第一核心网网元AMF在第二消息中携带一个或多个拒绝网络切片选择辅助信息域rejected S-NSSAI，拒绝网络切片选择辅助信息域rejected S-NSSAI表示切片在当前注册区域(RA)范围内不可用，且携带第一原因值：切片在当前注册区域不可用，可选的，携带计时器a，用于指示终端等待计时器a到期之后可以尝试使用切片发起请求；
可选地，第二消息中可以包括以下至少一项：
至少一个第一切片的信息、第一指示信息；或，
第二消息包括以下至少一项：
至少一个第一切片的信息、至少一个第一切片分别对应的第一TA的信息、至少一个第二切片的信息、至少一个第二切片分别对应的第二TA的信息、第二指示信息；或，
第二消息包括以下至少一项：
至少一个请求切片、第三TA的信息、第三指示信息。
即第一核心网网元AMF在收到终端的请求之后，根据切片在RA下的多个TA的适用情况，将基于切片粒度的支持使用切片和/或拒绝使用切片的TA列表信息告知终端；终端在收到基于切片粒度的支持使用切片和/或拒绝使用切片的TA列表信息之后，结合当前所在的TA信息，来判断是否可以在当前的TA中使用切片。
可选地，若网络侧设备指示终端与网络之间的N1连接成功，则第一核心网网元AMF将终端不支持在目标TA内不使用请求切片的信息放在注册完成消息中的拒绝网络切片选择辅助信息的信息元素和/或扩展拒绝网络切片选择辅助信息的信息元素和/或新定义的第一IE中携带给终端，将终端支持在目标TA内使用请求切片的信息放在注册完成消息中的扩展允许网络切片选择辅助信息的信息元素和/或新定义的IE中携带给终端；
若网络侧设备指示终端与网络之间的N1连接失败，则第一核心网网元AMF将终端不支持在目标TA内不使用请求切片的信息放在注册拒绝消息中的拒绝网络切片选择辅助信息的信息元素和/或扩展拒绝网络切片选择辅助信息的信息元素和/或新定义的第一IE中携带给终端。
步骤4、终端在收到第二消息之后，如果第二消息指示终端与网络之间的N1连接成功，并且如果第二消息中包含基于切片粒度的第一TA信息和/或第二TA信息和/或指示信息，终端则向第一核心网网元AMF发送第三消息，第三消息用于确认终端已收到包含基于切片粒度的第一TA信息和/或第二TA信息和/或指示信息，也就是用于确认终端已接收到用于指示是否支持在跟踪区TA内使用请求切片的信息。
步骤5、在收到第二消息之后，在第一TA中第一切片无法使用，直到计时器到期或者移动到第二TA范围，终端才可以使用切片。
步骤6、当满足上述使用条件时，终端能够使用第一切片，终端执行如下至少一项操作：
(1)将第一切片移出当前跟踪区域内的拒绝切片列表，移出之后标识该切片可以被用于正常请求；
(2)根据业务需求和切片选择，终端向第一核心网网元AMF发送如下指示一项信息，用于移动性或周期性注册更新：
可选地，终端向网络侧设备发送第四消息，第四消息为请求消息，包括如下至少一项：
A、终端能力指示信息，终端能力指示信息用于指示终端支持在同RA下支持的TA中发起切片请求的功能，其中，在同RA下支持的TA中发起切片请求的功能指的是当请求切片在当前的TA中被拒绝但是在同一个RA下的其他TA中是可以接受的时候，终端可以在移动到其他TA中时使用请求切片；
B、请求切片信息，请求切片信息中包含一个或多个第一切片；
步骤7、第一核心网网元AMF在收到终端消息之后，确认在当前网络可以为请求切片提供服务之后，则指示终端与网络之间的N1连接成功。可选地，第五消息中包含可以在目标跟踪区使用的第一切片信息；可选地，第五消息可以为注册接受消息；
步骤8、终端在收到注册接受消息之后，终端向第一核心网网元AMF发送第六消息，第六消息用于确认终端已收到指示终端是否支持在目标TA内不使用请求切片和/或在目标TA内使用请求切片的信息，可选地，第六消息可以为注册完成消息。
本申请实施例提供的通信方法，执行主体可以为虚拟装置。本申请实施例中以虚拟装置执行通信方法为例，说明本申请实施例提供的通信装置。
图21是本申请实施例提供的通信装置的结构示意图之一。如图21所示，本实施例提供的通信装置，包括：
发送模块2101，用于向网络侧设备发送第一消息，第一消息用于请求使用请求切片与网络侧设备建立连接；
接收模块2102，用于接收网络侧设备发送的第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
可选地，第二消息包括以下至少一项：
至少一个第一切片的信息、第一指示信息；第一指示信息用于指示至少一个第一切片在当前TA内不可用；其中，第一切片为请求切片中的切片；目标跟踪区TA包括当前TA；或，
第二消息包括以下至少一项：
至少一个第一切片的信息、至少一个第一切片中每个第一切片对应的一个或多个第一TA的信息、至少一个第二切片的信息、至少一个第二切片中每个第二切片分别对应的一个或多个第二TA的信息、第二指示信息；第一TA为不支持使用第一切片的TA；第二TA为支持使用第二切片的TA，第二指示信息用于指示第一切片在第一TA内不可用；其中，第一切片或第二切片为请求切片中的切片；目标跟踪区TA包括第一TA或第二TA；或，
第二消息包括以下至少一项：
至少一个第三切片的信息、第三TA的信息、第三指示信息；第三指示信息用于指示第三TA为支持使用第三切片的TA或不支持使用第三切片的TA；目标TA包括第三TA，第三切片为请求切片中的切片。
可选地，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域中包括以下至少一项：第一切片的信息、第一指示信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域中包括以下至少一项：第一切片的信息、第一指示信息。
可选地，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息。
可选地，第二消息包括NSSAI服务区域列表IE；NSSAI服务区域列表IE中包括至少一个NSSAI服务区域列表域，每个NSSAI服务区域列表域包括：第三切片的NSSAI字段、NSSAI服务区域列表字段、目标计时器字段，NSSAI服务区域列表字段包括以下至少一项：第三指示信息、第三TA的信息。
可选地，第二消息包括扩展允许NSSAI IE，扩展允许NSSAI IE中包括至少一个第二切片分别对应的允许NSSAI域；各个第二切片对应的允许NSSAI域包括以下至少一项：允许NSSAI域的长度、第二切片的NSSAI字段、第二TA的信息。
可选地，第一TA包括：在预设时间范围内不支持使用第一切片的TA。
可选地，第二消息还包括第一计时器的信息；第一计时器用于指示在第一计时器到期后终端在第一TA中可使用第一切片。
可选地，发送模块2101，还用于向网络侧设备发送第三消息；第三消息用于指示终端已接收到用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
可选地，接收模块2102，还用于针对每个第一TA或当前TA，终端将第一TA或当前TA不支持使用的第一切片的信息加入第一TA或当前TA对应的拒绝切片列表；
针对每个第二TA，终端将第二TA支持使用的第二切片的信息加入第二TA对应的允许切片列表；
存储每一种接入类型下第一切片的信息及不支持使用第一切片的第一TA的信息；
存储每一种接入类型下第二切片的信息及支持使用第二切片的第二TA的信息；
启动第二计时器；第二计时器用于指示在第二计时器到期后，终端在第一TA或当前TA中可使用第一切片。
可选地，接收模块2102，还用于针对至少一个第一切片中的任一第一切片，在第一切片包括在第六TA对应的拒绝切片列表中的情况下，第六TA为一个或多个第一TA或当前TA中的任一TA，在满足以下至少一项目标条件时，可使用第一切片：
终端关机重启之后；
终端移出第一TA或当前TA；
终端处于第二TA内；
终端的全球用户识别卡USIM移除之后；
终端所在的当前网络带有网络标识的签约数据更新之后；
第一计时器到期后；第一计时器为网络侧设备配置的；
第二计时器到期后；第二计时器为终端在接收到第二消息后启动的；
第一计时器或第二计时器用于指示计时器到期后，终端在第一TA或当前TA中可使用第一切片。
可选地，接收模块2102，还用于在满足至少一项目标条件的情况下，执行以下至少一项操作：
将第一切片从第六TA对应的拒绝切片列表中移出；
将第一切片更新为第六TA内可使用的切片；
向网络侧设备发送第四消息，第四消息包括以下至少一项：
期望使用的第一目标切片信息、终端能力指示信息；终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力。
可选地，接收模块2102，还用于接收网络侧设备发送的第一目标网络配置的切片信息；
在切片信息中包括第四TA对应的拒绝切片列表中的第二目标切片信息，则从拒绝切片列表中将第二目标切片信息删除，并停止与第二目标切片信息关联的第二计时器的计时；第四TA为第一目标网络对应的TA。
可选地，接收模块2102，还用于接收网络侧设备发送的第二目标网络允许的切片信息；
在允许的切片信息中包括第五TA对应的拒绝切片列表中的第三目标切片信息，则拒绝切片列表中将第三目标切片信息删除，并停止与第三目标切片信息关联的第二计时器的计时；第五TA为第二目标网络对应的TA。
可选地，第一消息包括以下至少一项：
请求切片的信息、终端能力指示信息；终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力。
本实施例的装置，可以用于执行前述终端侧方法实施例中任一实施例的方法，其具体实现过程与技术效果与第一设备侧方法实施例中相同，具体可以参见终端侧方法实施例中的详细介绍，此处不再赘述。
图22是本申请实施例提供的通信装置的结构示意图之二。如图22所示，本实施例提供的通信装置，包括：
接收模块2201，用于接收终端发送的第一消息；第一消息用于请求使用请求切片与网络侧设备建立连接；
发送模块2202，用于向终端发送第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
可选地，第二消息包括以下至少一项：
至少一个第一切片的信息、第一指示信息；第一指示信息用于指示至少一个第一切片在当前TA内不可用；其中，第一切片为请求切片中的切片；目标跟踪区TA包括当前TA；或，
第二消息包括以下至少一项：
至少一个第一切片的信息、至少一个第一切片中每个第一切片对应的一个或多个第一TA的信息、至少一个第二切片的信息、至少一个第二切片中每个第二切片对应的一个或多个第二TA的信息、第二指示信息；第一TA为不支持使用第一切片的TA；第二TA为支持使用第二切片的TA，第二指示信息用于指示第一切片在第一TA内不可用；其中，第一切片或第二切片为请求切片中的切片；目标跟踪区TA包括第一TA或第二TA；或，
第二消息包括以下至少一项：
至少一个第三切片、第三TA的信息、第三指示信息；第三指示信息用于指示第三TA为支持使用第三切片的TA或不支持使用第三切片的TA；目标TA包括第三TA，第三切片为请求切片中的切片。
可选地，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第一指示信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片 对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第一指示信息。
可选地，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息。
可选地，第二消息包括NSSAI服务区域列表IE；NSSAI服务区域列表IE中包括至少一个NSSAI服务区域列表域，每个NSSAI服务区域列表域包括：第三切片的NSSAI字段、NSSAI服务区域列表字段、目标计时器字段，NSSAI服务区域列表字段包括以下至少一项：第三指示信息、第三TA的信息。
可选地，第二消息包括扩展允许NSSAI IE，扩展允许NSSAI IE中包括至少一个第二切片分别对应的允许NSSAI域；各个第二切片对应的允许NSSAI域包括以下至少一项：允许NSSAI域的长度、第二切片的NSSAI字段、第二TA的信息。
可选地，第一TA包括：在预设时间范围内不支持使用第一切片的TA。
可选地，第二消息还包括第一计时器的信息；第一计时器用于指示在第一计时器到期后终端在第一TA中可使用第一切片。
可选地，接收模块2201，还用于接收终端发送的第三消息；第三消息用于指示终端已接收到用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
第一消息包括以下至少一项：
请求切片的信息、终端能力指示信息；终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力。
本实施例的装置，可以用于执行前述网络设备侧方法实施例中任一实施例的方法，其具体实现过程与技术效果与第一设备侧方法实施例中相同，具体可以参见网络设备侧方法实施例中的详细介绍，此处不再赘述。
本申请实施例中的通信装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之外的其他设备。示例性的，终端可以包括但不限于上述所列举的终端11的类型，其他设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)等，本申请实施例不作具体限定。
可选地，如图23所示，本申请实施例还提供一种通信设备2300，包括处理器2301和存储器2302，存储器2302上存储有可在处理器2301上运行的程序或指令，例如，该通信设备2300为终端时，该程序或指令被处理器2301执行时实现上述通信方法实施例的各个步骤，且能达到相同的技术效果。该通信设备2300为网络侧设备时，该程序或指令被处理器2301执行时实现上述通信方法实施例的各个步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种终端，包括处理器和通信接口，通信接口用于向网络侧设备发送第一消息，第一消息用于请求使用请求切片与网络侧设备建立连接；接收网络侧设备发送的第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。该终端实施例与上述终端侧方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中，且能达到相同的技术效果。具体地，图24为实现本申请实施例的一种终端的硬件结构示意图。
该终端1000包括但不限于：射频单元1001、网络模块1002、音频输出单元1003、输入单元1004、传感器1005、显示单元1006、用户输入单元1007、接口单元1008、存储器1009、以及处理器1010等中的至少部分部件。
本领域技术人员可以理解，终端1000还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器1010逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图24中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元1004可以包括图形处理单元(Graphics Processing Unit，GPU)10041和麦克风10042，图形处理器10041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1006可包括显示面板10061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板10061。用户输入单元1007包括触控面板10071以及其它输入设备10072中的至少一种。触控面板10071，也称为触摸屏。触控面板10071可包括触摸检测装置和触摸控制器两个部分。其它输入设备10072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元1001将接收来自网络侧设备的下行数据接收后，可以传输给处理器1010进行处理；另外，射频单元1001可以将上行的数据发送给向网络侧设备发送上行数据。通常，射频单元1001包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1009可用于存储软件程序或指令以及各种数据。存储器1009可主要包括存储程序或指令的第一存储区和存储数据的第二存储区，其中，第一存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器1009可以包括易失性存储器或非易失性存储器，或者，存储器1009可以包括易失性和非易失性存储器两者。包括高速随机存取存储器，还可以包括非易失性存储器，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)，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，DDRSDRAM)、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(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器1009包括但不限于这些和任意其它适合类型的存储器例如至少一个磁盘存储器件、闪存器件、或其它非易失性固态存储器件。
处理器1010可包括一个或多个处理单元；可选的，处理器1010可集成应用处理器和调制解调处理器，其中，应用处理器主要处理涉及操作系统、用户界面和应用程序或指令等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器1010中。
其中，射频单元1001，用于向网络侧设备发送第一消息，第一消息用于请求使用请求切片与网络侧设备建立连接；
接收网络侧设备发送的第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
可选地，第二消息包括以下至少一项：
至少一个第一切片的信息、第一指示信息；第一指示信息用于指示至少一个第一切片在当前TA内不可用；其中，第一切片为请求切片中的切片；目标跟踪区TA包括当前TA；或，
第二消息包括以下至少一项：
至少一个第一切片的信息、至少一个第一切片中每个第一切片对应的一个或多个第一TA的信息、至少一个第二切片的信息、至少一个第二切片中每个第二切片分别对应的一个或多个第二TA的信息、第二指示信息；第一TA为不支持使用第一切片的TA；第二TA为支持使用第二切片的TA，第二指示信息用于指示第一切片在第一TA 内不可用；其中，第一切片或第二切片为请求切片中的切片；目标跟踪区TA包括第一TA或第二TA；或，
第二消息包括以下至少一项：
至少一个第三切片的信息、第三TA的信息、第三指示信息；第三指示信息用于指示第三TA为支持使用第三切片的TA或不支持使用第三切片的TA；目标TA包括第三TA，第三切片为请求切片中的切片。
可选地，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域中包括以下至少一项：第一切片的信息、第一指示信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域中包括以下至少一项：第一切片的信息、第一指示信息。
可选地，第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，拒绝NSSAI IE或第一IE中包括至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息；和/或，
第二消息包括扩展拒绝NSSAI IE，扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，部分扩展拒绝NSSAI列表域包括：至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个第一切片对应的拒绝NSSAI域包括以下至少一项：第一切片的信息、第二指示信息、第一TA的信息。
可选地，第二消息包括NSSAI服务区域列表IE；NSSAI服务区域列表IE中包括至少一个NSSAI服务区域列表域，每个NSSAI服务区域列表域包括：第三切片的NSSAI字段、NSSAI服务区域列表字段、目标计时器字段，NSSAI服务区域列表字段包括以下至少一项：第三指示信息、第三TA的信息。
可选地，第二消息包括扩展允许NSSAI IE，扩展允许NSSAI IE中包括至少一个第二切片分别对应的允许NSSAI域；各个第二切片对应的允许NSSAI域包括以下至少一项：允许NSSAI域的长度、第二切片的NSSAI字段、第二TA的信息。
可选地，第一TA包括：在预设时间范围内不支持使用第一切片的TA。
可选地，第二消息还包括第一计时器的信息；第一计时器用于指示在第一计时器到期后终端在第一TA中可使用第一切片。
可选地，射频单元1001，还用于向网络侧设备发送第三消息；第三消息用于指示终端已接收到用于指示是否支持在目标跟踪区TA内使用请求切片的信息。
可选地，处理器1010，还用于
针对每个第一TA或当前TA，终端将第一TA或当前TA不支持使用的第一切片的信息加入第一TA或当前TA对应的拒绝切片列表；
针对每个第二TA，终端将第二TA支持使用的第二切片的信息加入第二TA对应的允许切片列表；
存储每一种接入类型下第一切片的信息及不支持使用第一切片的第一TA的信息；
存储每一种接入类型下第二切片的信息及支持使用第二切片的第二TA的信息；
启动第二计时器；第二计时器用于指示在第二计时器到期后，终端在第一TA或当前TA中可使用第一切片。
可选地，处理器1010，还用于针对至少一个第一切片中的任一第一切片，在第一切片包括在第六TA对应的拒绝切片列表中的情况下，第六TA为一个或多个第一TA或当前TA中的任一TA，在满足以下至少一项目标条件时，可使用第一切片：
终端关机重启之后；
终端移出第一TA或当前TA；
终端处于第二TA内；
终端的全球用户识别卡USIM移除之后；
终端所在的当前网络带有网络标识的签约数据更新之后；
第一计时器到期后；第一计时器为网络侧设备配置的；
第二计时器到期后；第二计时器为终端在接收到第二消息后启动的；
第一计时器或第二计时器用于指示计时器到期后，终端在第一TA或当前TA中可使用第一切片。
可选地，处理器1010，还用于在满足至少一项目标条件的情况下，执行以下至少一项操作：
将第一切片从第六TA对应的拒绝切片列表中移出；
将第一切片更新为第六TA内可使用的切片；
向网络侧设备发送第四消息，第四消息包括以下至少一项：
期望使用的第一目标切片信息、终端能力指示信息；终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力。
可选地，射频单元1001，还用于接收网络侧设备发送的第一目标网络配置的切片信息；
在切片信息中包括第四TA对应的拒绝切片列表中的第二目标切片信息，则从拒绝切片列表中将第二目标切片信息删除，并停止与第二目标切片信息关联的第二计时器的计时；第四TA为第一目标网络对应的TA。
可选地，射频单元1001，还用于接收网络侧设备发送的第二目标网络允许的切片信息；
在允许的切片信息中包括第五TA对应的拒绝切片列表中的第三目标切片信息，则拒绝切片列表中将第三目标切片信息删除，并停止与第三目标切片信息关联的第二计时器的计时；第五TA为第二目标网络对应的TA。
可选地，第一消息包括以下至少一项：
请求切片的信息、终端能力指示信息；终端能力指示信息用于指示终端是否支持第一能力，第一能力为接收并使用用于指示是否支持在目标TA内使用请求切片的信息的能力。
本申请实施例还提供一种网络侧设备，包括处理器和通信接口，通信接口用于接收终端发送的第一消息；第一消息用于请求使用请求切片与网络侧设备建立连接；向终端发送第二消息；第二消息携带用于指示是否支持在目标跟踪区TA内使用请求切片的信息。该网络侧设备实施例与上述网络侧设备方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中，且能达到相同的技术效果。
具体地，本申请实施例还提供了一种网络侧设备。如图25所示，该网络侧设备1100包括：处理器1101、网络接口1102和存储器1103。其中，网络接口1102例如为通用公共无线接口(common public radio interface，CPRI)。
具体地，本申请实施例的网络侧设备1100还包括：存储在存储器1103上并可在处理器1101上运行的指令或程序，处理器1101调用存储器1103中的指令或程序执行图22所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供一种可读存储介质，可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述通信方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，处理器为上述实施例中的终端中的处理器。可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片，芯片包括处理器和通信接口，通信接口和处理器耦合，处理器用于运行程序或指令，实现上述通信方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品，计算机程序/程序产品被存储在存储介质中，计算机程序/程序产品被至少一个处理器执行以实现上述通信方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供了一种通信系统，包括：终端及网络侧设备，终端可用于执行如上的通信方法的步骤，网络侧设备可用于执行如上的通信方法的步骤。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。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可以以计算机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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (30)

  1. 一种通信方法，包括：
    终端向网络侧设备发送第一消息，所述第一消息用于请求使用请求切片与所述网络侧设备建立连接；
    所述终端接收所述网络侧设备发送的第二消息；所述第二消息携带用于指示是否支持在目标跟踪区TA内使用所述请求切片的信息。
  2. 根据权利要求1所述的通信方法，其中，
    所述第二消息包括以下至少一项：
    至少一个第一切片的信息、第一指示信息；所述第一指示信息用于指示所述至少一个第一切片在当前TA内不可用；其中，所述第一切片为所述请求切片中的切片；所述目标跟踪区TA包括所述当前TA；或，
    所述第二消息包括以下至少一项：
    至少一个第一切片的信息、至少一个第一切片中每个第一切片对应的一个或多个第一TA的信息、至少一个第二切片的信息、至少一个第二切片中每个第二切片分别对应的一个或多个第二TA的信息、第二指示信息；所述第一TA为不支持使用所述第一切片的TA；所述第二TA为支持使用所述第二切片的TA，所述第二指示信息用于指示所述第一切片在所述第一TA内不可用；其中，所述第一切片或所述第二切片为所述请求切片中的切片；所述目标跟踪区TA包括所述第一TA或所述第二TA；或，
    所述第二消息包括以下至少一项：
    至少一个第三切片的信息、第三TA的信息、第三指示信息；所述第三指示信息用于指示所述第三TA为支持使用所述第三切片的TA或不支持使用所述第三切片的TA；所述目标TA包括所述第三TA，所述第三切片为所述请求切片中的切片。
  3. 根据权利要求2所述的通信方法，其中，
    所述第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，所述拒绝NSSAI IE或第一IE中包括所述至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个所述第一切片对应的拒绝NSSAI域中包括以下至少一项：所述第一切片的信息、所述第一指示信息；和/或，
    所述第二消息包括扩展拒绝NSSAI IE，所述扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，所述部分扩展拒绝NSSAI列表域包括：所述至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个所述第一切片对应的拒绝NSSAI域中包括以下至少一项：所述第一切片的信息、所述第一指示信息。
  4. 根据权利要求2所述的通信方法，其中，
    所述第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，所述拒绝NSSAI IE或第一IE中包括所述至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个所述第一切片对应的拒绝NSSAI域包括以下至少一项：所述第一切片的信息、所述第二指示信息、所述第一TA的信息；和/或，
    所述第二消息包括扩展拒绝NSSAI IE，所述扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，所述部分扩展拒绝NSSAI列表域包括：所述至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个所述第一切片对应的拒绝NSSAI域包括以下至少一项：所述第一切片的信息、所述第二指示信息、所述第一TA的信息。
  5. 根据权利要求2所述的通信方法，其中，
    所述第二消息包括NSSAI服务区域列表IE；所述NSSAI服务区域列表IE中包括至少一个NSSAI服务区域列表域，每个所述NSSAI服务区域列表域包括：所述第三切片的NSSAI字段、NSSAI服务区域列表字段、目标计时器字段，所述NSSAI服务区域列表字段包括以下至少一项：第三指示信息、所述第三TA的信息。
  6. 根据权利要求2所述的通信方法，其中，
    所述第二消息包括扩展允许NSSAI IE，所述扩展允许NSSAI IE中包括所述至少一个第二切片分别对应的允许NSSAI域；各个所述第二切片对应的允许NSSAI域包括以下至少一项：所述允许NSSAI域的长度、所述第二切片的NSSAI字段、所述第二TA的信息。
  7. 根据权利要求2-6任一项所述的通信方法，其中，所述第一TA包括：在预设时间范围内不支持使用所述第一切片的TA。
  8. 根据权利要求7所述的通信方法，其中，
    所述第二消息还包括第一计时器的信息；所述第一计时器用于指示在所述第一计时器到期后所述终端在所述第一TA中可使用所述第一切片。
  9. 根据权利要求1-6任一项所述的通信方法，所述终端接收所述网络侧设备发送的第二消息之后，还包括：
    所述终端向所述网络侧设备发送第三消息；所述第三消息用于指示所述终端已接收到用于指示是否支持在目标跟踪区TA内使用所述请求切片的信息。
  10. 根据权利要求2-6任一项所述的通信方法，所述终端接收所述网络侧设备发送的第二消息之后，还包括以下至少一项：
    针对每个所述第一TA或当前TA，所述终端将所述第一TA或当前TA不支持使用的第一切片的信息加入所述第一TA或当前TA对应的拒绝切片列表；
    针对每个所述第二TA，所述终端将所述第二TA支持使用的第二切片的信息加入所述第二TA对应的允许切片列表；
    所述终端存储每一种接入类型下所述第一切片的信息及不支持使用所述第一切片的第一TA的信息；
    所述终端存储每一种接入类型下所述第二切片的信息及支持使用所述第二切片的第二TA的信息；
    启动第二计时器；所述第二计时器用于指示在所述第二计时器到期后，所述终端在所述第一TA或当前TA中可使用所述第一切片。
  11. 根据权利要求2-6任一项所述的通信方法，其中，针对所述至少一个第一切片中的任一第一切片，在所述第一切片包括在第六TA对应的拒绝切片列表中的情况下，所述第六TA为所述一个或多个第一TA或当前TA中的任一TA，所述终端在满足以下至少一项目标条件时，所述终端可使用所述第一切片：
    所述终端关机重启之后；
    所述终端移出所述第一TA或当前TA；
    所述终端处于所述第二TA内；
    所述终端的全球用户识别卡USIM移除之后；
    所述终端所在的当前网络带有网络标识的签约数据更新之后；
    第一计时器到期后；所述第一计时器为所述网络侧设备配置的；
    第二计时器到期后；所述第二计时器为所述终端在接收到所述第二消息后启动的；
    所述第一计时器或所述第二计时器用于指示计时器到期后，所述终端在所述第一TA或当前TA中可使用所述第一切片。
  12. 根据权利要求11所述的通信方法，在所述终端满足所述至少一项目标条件的情况下，所述方法还包括：
    所述终端执行以下至少一项操作：
    所述终端将所述第一切片从所述第六TA对应的拒绝切片列表中移出；
    所述终端将所述第一切片更新为所述第六TA内可使用的切片；
    所述终端向所述网络侧设备发送第四消息，所述第四消息包括以下至少一项：
    期望使用的第一目标切片信息、终端能力指示信息；所述终端能力指示信息用于指示所述终端是否支持第一能力，所述第一能力为接收并使用用于指示是否支持在目标TA内使用所述请求切片的信息的能力。
  13. 根据权利要求2-6任一项所述的通信方法，所述方法还包括：
    所述终端接收所述网络侧设备发送的第一目标网络配置的切片信息；
    在所述切片信息中包括第四TA对应的拒绝切片列表中的第二目标切片信息，则所述终端从所述拒绝切片列表中将所述第二目标切片信息删除，并停止与所述第二目标切片信息关联的第二计时器的计时；所述第四TA为所述第一目标网络对应的TA。
  14. 根据权利要求2-6任一项所述的通信方法，所述方法还包括：
    所述终端接收所述网络侧设备发送的第二目标网络允许的切片信息；
    在所述允许的切片信息中包括第五TA对应的拒绝切片列表中的第三目标切片信息，则所述终端所述拒绝切片列表中将所述第三目标切片信息删除，并停止与所述第三目标切片信息关联的第二计时器的计时；所述第五TA为所述第二目标网络对应的TA。
  15. 根据权利要求2-6任一项所述的通信方法，其中，所述第一消息包括以下至少一项：
    请求切片的信息、终端能力指示信息；所述终端能力指示信息用于指示所述终端是否支持第一能力，所述第一能力为接收并使用用于指示是否支持在目标TA内使用所述请求切片的信息的能力。
  16. 一种通信方法，包括：
    网络侧设备接收终端发送的第一消息；所述第一消息用于请求使用请求切片与网络侧设备建立连接；
    所述网络侧设备向所述终端发送第二消息；所述第二消息携带用于指示是否支持在目标跟踪区TA内使用所述请求切片的信息。
  17. 根据权利要求16所述的通信方法，其中，
    所述第二消息包括以下至少一项：
    至少一个第一切片的信息、第一指示信息；所述第一指示信息用于指示所述至少一个第一切片在当前TA内不可用；其中，所述第一切片为所述请求切片中的切片；所述目标跟踪区TA包括所述当前TA；或，
    所述第二消息包括以下至少一项：
    至少一个第一切片的信息、至少一个第一切片中每个第一切片对应的一个或多个第一TA的信息、至少一个第二切片的信息、至少一个第二切片中每个第二切片对应的一个或多个第二TA的信息、第二指示信息；所述第一TA为不支持使用所述第一切片的TA；所述第二TA为支持使用所述第二切片的TA，所述第二指示信息用于指示所述第一切片在所述第一TA内不可用；其中，所述第一切片或所述第二切片为所述请求切片中的切片；所述目标跟踪区TA包括所述第一TA或所述第二TA；或，
    所述第二消息包括以下至少一项：
    至少一个第三切片、第三TA的信息、第三指示信息；所述第三指示信息用于指示所述第三TA为支持使用所述第三切片的TA或不支持使用所述第三切片的TA；所述目标TA包括所述第三TA，所述第三切片为所述请求切片中的切片。
  18. 根据权利要求17所述的通信方法，其中，
    所述第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，所述拒绝NSSAI IE或第一IE中包括所述至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个所述第一切片对应的拒绝NSSAI域包括以下至少一项：所述第一切片的信息、所述第一指示信息；和/或，
    所述第二消息包括扩展拒绝NSSAI IE，所述扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，所述部分扩展拒绝NSSAI列表域包括：所述至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个所述第一切片对应的拒绝NSSAI域包括以下至少一项：所述第一切片的信息、所述第一指示信息。
  19. 根据权利要求17所述的通信方法，其中，
    所述第二消息包括拒绝网络切片选择辅助信息NSSAI信息元素IE或第一IE，所述拒绝NSSAI IE或第一IE中包括所述至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个所述第一切片对应的拒绝NSSAI域包括以下至少一项：所述第一切片的信息、所述第二指示信息、所述第一TA的信息；和/或，
    所述第二消息包括扩展拒绝NSSAI IE，所述扩展拒绝NSSAI IE包括：部分扩展拒绝NSSAI列表域，所述部分扩展拒绝NSSAI列表域包括：所述至少一个第一切片中每个第一切片对应的拒绝NSSAI域；各个所述第一切片对应的拒绝NSSAI域包括以下至少一项：所述第一切片的信息、所述第二指示信息、所述第一TA的信息。
  20. 根据权利要求17所述的通信方法，其中，
    所述第二消息包括NSSAI服务区域列表IE；所述NSSAI服务区域列表IE中包括至少一个NSSAI服务区域列表域，每个所述NSSAI服务区域列表域包括：所述第三切片的NSSAI字段、NSSAI服务区域列表字段、目标计时器字段，所述NSSAI服务区域列表字段包括以下至少一项：第三指示信息、所述第三TA的信息。
  21. 根据权利要求17所述的通信方法，其中，
    所述第二消息包括扩展允许NSSAI IE，所述扩展允许NSSAI IE中包括所述至少一个第二切片分别对应的允许NSSAI域；各个所述第二切片对应的允许NSSAI域包括以下至少一项：所述允许NSSAI域的长度、所述第二切片的NSSAI字段、所述第二TA的信息。
  22. 根据权利要求17-21任一项所述的通信方法，其中，所述第一TA包括：在预设时间范围内不支持使用所述第一切片的TA。
  23. 根据权利要求22所述的通信方法，其中，
    所述第二消息还包括第一计时器的信息；所述第一计时器用于指示在所述第一计时器到期后所述终端在所述第一TA中可使用所述第一切片。
  24. 根据权利要求16-21任一项所述的通信方法，其中，
    所述网络侧设备接收所述终端发送的第三消息；所述第三消息用于指示所述终端已接收到用于指示是否支持在目标跟踪区TA内使用所述请求切片的信息。
  25. 根据权利要求17-21任一项所述的通信方法，其中，所述第一消息包括以下至少一项：
    请求切片的信息、终端能力指示信息；所述终端能力指示信息用于指示所述终端是否支持第一能力，所述第一能力为接收并使用用于指示是否支持在目标TA内使用所述请求切片的信息的能力。
  26. 一种通信装置，包括：
    发送模块，用于向网络侧设备发送第一消息，所述第一消息用于请求使用请求切片与所述网络侧设备建立连接；
    接收模块，用于接收所述网络侧设备发送的第二消息；所述第二消息携带用于指示是否支持在目标跟踪区TA内使用所述请求切片的信息。
  27. 一种通信装置，包括：
    接收模块，用于接收终端发送的第一消息；所述第一消息用于请求使用请求切片与网络侧设备建立连接；
    发送模块，用于向终端发送第二消息；所述第二消息携带用于指示是否支持在目标跟踪区TA内使用所述请求切片的信息。
  28. 一种终端，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至15任一项所述的通信方法的步骤。
  29. 一种网络侧设备，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求16至25任一项所述的通信方法的步骤。
  30. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1-15任一项所述的通信方法，或者实现如权利要求16至25任一项所述的通信方法的步骤。
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NOKIA, NOKIA SHANGHAI BELL, TELECOM ITALIA, CONVIDA WIRELESS, T-MOBILE, APPLE, VERIZON UK LTD., NEC, SAMSUNG, BROADCOM, INTERDIGIT: "Introduction of support of NG.116 attribute "Simultaneous Use of a Network Slice"", 3GPP DRAFT; S2-2104913, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, no. E (e-meeting); 20210517 - 20210528, 28 May 2021 (2021-05-28), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052017302 *

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