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WO2020093891A1 - 终端能力、能力标识的指示方法、获取方法和通信设备 - Google Patents

终端能力、能力标识的指示方法、获取方法和通信设备 Download PDF

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Publication number
WO2020093891A1
WO2020093891A1 PCT/CN2019/113592 CN2019113592W WO2020093891A1 WO 2020093891 A1 WO2020093891 A1 WO 2020093891A1 CN 2019113592 W CN2019113592 W CN 2019113592W WO 2020093891 A1 WO2020093891 A1 WO 2020093891A1
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WIPO (PCT)
Prior art keywords
terminal
capability
identification information
information
capability identification
Prior art date
Application number
PCT/CN2019/113592
Other languages
English (en)
French (fr)
Inventor
柯小婉
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.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to AU2019374291A priority Critical patent/AU2019374291B2/en
Priority to CA3119202A priority patent/CA3119202A1/en
Priority to EP19882751.1A priority patent/EP3879864A4/en
Priority to JP2021523587A priority patent/JP7337156B2/ja
Priority to RU2021115323A priority patent/RU2767499C1/ru
Priority to SG11202104879VA priority patent/SG11202104879VA/en
Priority to KR1020217014128A priority patent/KR102589690B1/ko
Publication of WO2020093891A1 publication Critical patent/WO2020093891A1/zh
Priority to US17/315,105 priority patent/US20210266730A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H04W8/205—Transfer to or from user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data

Definitions

  • Some embodiments of the present disclosure relate to the field of wireless communication technology, and in particular, to a terminal capability, capability identification indication method, acquisition method, and communication network element.
  • the terminal In order for the core network (CN) network element or the radio access network (Radio Access Network, RAN) network element to obtain terminal capabilities, the terminal needs to report the terminal capability to the CN network element or the RAN network element, or Terminal capabilities are transferred between the elements.
  • the terminal With the evolution of the communication system, the terminal needs to support more and more capabilities, and the overhead caused by the transmission of terminal capabilities is also increasing. Therefore, how to reduce the overhead caused by the transmission of terminal capabilities is a problem to be solved.
  • Some embodiments of the present disclosure provide a terminal capability, capability identification indication method, acquisition method, and communication device, which are used to reduce the overhead caused by terminal capability transmission.
  • some embodiments of the present disclosure provide a terminal capability indication method, which is applied to a first communication network element and includes:
  • first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal
  • the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to indicate a terminal capability mapped by the first capability identification information; or, the first indication The information is used to indicate a terminal capability that does not have the first capability identification information mapped; the second indication information is used to indicate whether to have the terminal capability of the first terminal; or, the second indication information is used to indicate that the The terminal capability of the first terminal; or, the second indication information is used for not having the terminal capability of the first terminal.
  • some embodiments of the present disclosure provide a method for acquiring terminal capabilities, which is applied to a second communication network element and includes:
  • first information from a first communication network element, where the first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal; the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to Indicating a terminal capability mapped with the first capability identification information; or, the first indication information is used to indicate a terminal capability not mapped with the first capability identification information; the second indication information is used to indicate whether the terminal capability The terminal capability of the first terminal; or, the second indication information is used to indicate that the terminal capability of the first terminal is used; or, the second indication information is used to not have the terminal capability of the first terminal;
  • the terminal capabilities of the first terminal are acquired.
  • some embodiments of the present disclosure provide a first communication network element, including:
  • a sending module configured to send first information to the second communication network element, where the first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal
  • the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to indicate a terminal capability mapped by the first capability identification information; or, the first indication The information is used to indicate a terminal capability that does not have the first capability identification information mapped; the second indication information is used to indicate whether to have the terminal capability of the first terminal; or, the second indication information is used to indicate that the The terminal capability of the first terminal; or, the second indication information is used for not having the terminal capability of the first terminal.
  • some embodiments of the present disclosure provide a second communication network element, including:
  • a first obtaining module configured to obtain first information from a first communication network element, where the first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal; the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to Indicating a terminal capability mapped with the first capability identification information; or, the first indication information is used to indicate a terminal capability not mapped with the first capability identification information; the second indication information is used to indicate whether the terminal capability The terminal capability of the first terminal; or, the second indication information is used to indicate that the terminal capability of the first terminal is used; or, the second indication information is used to not have the terminal capability of the first terminal;
  • the second obtaining module is configured to obtain the terminal capabilities of the first terminal according to the first information.
  • some embodiments of the present disclosure provide a first communication network element, including a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program is When the processor executes, it implements the steps of the above terminal capability indication method.
  • some embodiments of the present disclosure provide a second communication network element, including a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program is When the processor executes, the steps of the method for acquiring the terminal capability described above are implemented.
  • some embodiments of the present disclosure provide a terminal capability identification indication method, which is applied to a third communication device and includes:
  • the third indication information is used to indicate whether the first capability identification information is present
  • the first capability identification information is terminal capability identification information of the first terminal.
  • some embodiments of the present disclosure provide a method for acquiring a terminal capability identifier, which is applied to a fourth communication network element and includes:
  • the third indication information is used to indicate whether the first capability identification information is available; wherein, the first capability identification information is terminal capability identification information of the first terminal;
  • the third indication information determine whether to acquire the first capability identification information or determine whether to allocate capability identification information for the first terminal.
  • some embodiments of the present disclosure provide a third communication device, including:
  • a sending module configured to send third indication information; the third indication information is used to indicate whether the first capability identification information is present;
  • the first capability identification information is terminal capability identification information of the first terminal.
  • some embodiments of the present disclosure provide a fourth communication network element, including:
  • An obtaining module configured to obtain third indication information, which is used to indicate whether the first capability identification information is present; wherein, the first capability identification information is terminal capability identification information of the first terminal;
  • the determining module is configured to determine whether to acquire the first capability identification information or determine whether to allocate capability identification information to the first terminal according to the third indication information.
  • some embodiments of the present disclosure provide a third communication device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program is When the processor executes, it implements the steps of the method for indicating the terminal capability identifier applied to the third communication device.
  • some embodiments of the present disclosure provide a fourth communication network element, including a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program When executed by the processor, the steps of the method for indicating the terminal capability identifier of the fourth communication network element described above are implemented.
  • some embodiments of the present disclosure provide a computer-readable storage medium that stores a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, implements the above method for indicating terminal capabilities Steps, or, when the computer program is executed by the processor, the steps of the method for acquiring the terminal capability described above, or, when the computer program is executed by the processor, the steps of the method for indicating the terminal capability identification, or the computer When the program is executed by the processor, the steps of the method for acquiring the terminal capability identifier described above are implemented.
  • the first communication network element sends first information related to terminal capabilities, so that the communication network element that receives the first information can select whether to start from the first communication network element or from the terminal according to the first information Acquire terminal capabilities, avoid signaling overhead caused by a failed attempt to acquire terminal capabilities from the first communication network element, or avoid always acquiring terminal capabilities from the terminal, reduce the frequency of acquiring air interface terminal capabilities, and thereby reduce signaling overhead for terminal capability transmission.
  • FIG. 1 is a schematic flowchart of a terminal capability indication method according to some embodiments of the present disclosure
  • FIG. 2 is a schematic flowchart of a method for acquiring terminal capabilities according to some embodiments of the present disclosure
  • FIG. 3 is a schematic flowchart of a communication method in a first scenario according to some embodiments of the present disclosure
  • FIG. 4 is a schematic flowchart of a communication method in a second scenario according to some embodiments of the present disclosure
  • FIG. 5 is a schematic structural diagram of a first communication network element according to some embodiments of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a second communication network element according to some embodiments of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a first communication network element according to other embodiments of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a second communication network element according to other embodiments of the present disclosure.
  • FIG. 9 is a schematic flowchart of a method for indicating a terminal capability identifier according to other embodiments of the present disclosure.
  • FIG. 10 is a schematic flowchart of a method for acquiring a terminal capability identifier according to other embodiments of the present disclosure
  • FIG. 11 is a schematic flowchart of a communication method in a third scenario according to some embodiments of the present disclosure.
  • FIG. 12 is a schematic flowchart of a communication method in a fourth scenario according to some embodiments of the present disclosure.
  • FIG. 13 is a schematic flowchart of a communication method in a fifth scenario according to some embodiments of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a third communication device according to some embodiments of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a fourth communication network element according to some embodiments of the present disclosure.
  • FIG. 16 is a schematic structural diagram of a third communication device according to another embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of a fourth communication network element according to another embodiment of the present disclosure.
  • some embodiments of the present disclosure provide a terminal capability indication method, acquisition method, and communication device. Specifically, when the radio access network (Radio Access Network, RAN) does not know the mapped wireless capability indicated by the first capability identification information, the terminal capability is acquired from the terminal. However, if the CN network element has acquired the terminal capability, acquiring the terminal capability from the terminal undoubtedly increases the signaling overhead of the UU port (the interface between the terminal and the base station).
  • Radio Access Network Radio Access Network
  • the CN network element does not necessarily have the terminal capability of the first capability identification information mapping; if the RAN network element blindly requests the CN network element for the terminal capability, when the CN does not have the terminal capability, it will cause unnecessary signaling overhead.
  • the CN network element When the CN network element has terminal capabilities, the CN network element always sends the terminal capabilities to the RAN network element, which may cause unnecessary signaling overhead of the NG interface (the interface between the core network and the base station). Because the RAN network element may already have the terminal capability mapped by the first capability identification information.
  • the terminal capability identifier is sent, especially if the network has saved the terminal capability identifier, which also causes a certain air interface overhead.
  • not all RAN network elements consistently support the function of terminal capability identification information.
  • the terminal moves from a supported RAN network element to an unsupported RAN network element, it moves to a supported RAN network element.
  • the terminal does not know that the network may have lost the terminal capability identification information of the terminal. Therefore, it is not applicable that the terminal sends the terminal capability identification information only once.
  • some embodiments of the present disclosure provide a terminal capability identification indication method, acquisition method, and communication device. Specifically, the terminal will communicate to When the network element reports the first capability identification information of the terminal, but if the communication network element has acquired the first capability identification information, acquiring the first capability identification information from the terminal undoubtedly increases signaling overhead.
  • the first point is that the terminal capabilities can be divided into terminal wireless capabilities and terminal core network capabilities.
  • the terminal can report the wireless capability of the terminal according to the network request.
  • the terminal can report the terminal's network capabilities during registration.
  • the terminal can support multiple bands and frequencies.
  • CA carrier aggregation
  • DC dual connectivity
  • various possible frequency band combinations need to be arranged and combined, and the frequency band combinations supported by each terminal manufacturer may also be different, resulting in wireless
  • the capacity is particularly huge.
  • more and more features are introduced into the network, and different features often require different wireless capabilities and network capabilities.
  • the terminal needs to inform the network of whether it supports it.
  • the terminal capability identification information (which may be simply referred to as terminal capability identification information) may be used to identify the terminal capability. There is a one-to-one mapping relationship between the terminal capability identification information and the terminal capability information, and the terminal capability can be mapped through the terminal capability identification information.
  • the terminal capability identification information can map a group of terminal capabilities or a complete terminal capability. Since the size of the terminal capability identification information is smaller than the terminal capability, the effect of optimizing capacity saving signaling can be achieved.
  • a terminal may have one or more terminal capability identification information.
  • terminal capabilities may include at least one of the following: terminal core network capabilities and terminal wireless capabilities.
  • the terminal core network capability may also be called terminal network capability and non-access network (Non-access Stratum, NAS) capability.
  • NAS Non-access Stratum
  • the terminal wireless capability may include at least one of the following: carrier aggregation CA capability and dual connection DC capability.
  • the carrier aggregation CA capability may be a frequency band and / or frequency band combination that supports carrier aggregation.
  • the dual connection DC capability may be a frequency band and / or combination of frequency bands supporting the dual connection DC capability
  • the terminal core network capabilities may include at least one of the following: 5G session management capabilities, 5G mobility management capabilities, user terminal network capabilities (UE Network Capability) and mobile station network capabilities (MS Network Capability), and so on.
  • 5G session management capabilities 5G mobility management capabilities
  • 5G mobility management capabilities 5G mobility management capabilities
  • user terminal network capabilities UE Network Capability
  • MS Network Capability mobile station network capabilities
  • the core network capabilities of the terminal network may include at least one of the following: 5G network capabilities, 4G network capabilities (such as UE Network capability), and 3G network capabilities (such as MS Network capability).
  • 5G network capabilities such as UE Network capability
  • 4G network capabilities such as UE Network capability
  • 3G network capabilities such as MS Network capability
  • capability and terminal capability may have the same meaning and may be mixed.
  • the terminal capability may be a set of terminal capability sets (or terminal capability sets). Therefore, “capability set”, “capability set”, “capability”, “terminal capability set”, “terminal capability set” and “terminal capability” may mean the same thing.
  • the terminal capability identification may be understood as current terminal capability identification information.
  • the current terminal capability identification can be understood as at least one of the following: terminal capability identification information corresponding to the current terminal capability, valid terminal capability identification information, the latest terminal capability identification, the latest terminal capability identification sent by the terminal to the network, and the latest network allocation Terminal identification information.
  • the terminal capability context may also be referred to as terminal capability description information, and may be used to describe specific capabilities.
  • capability identification information may mean the same meaning and may be mixed.
  • terminal capability signaling optimization may include wireless capability signaling optimization and non-access layer capability signaling optimization.
  • wireless capability signaling optimization can also be called: optimizations on UE radio capability signaling, referred to as RACS.
  • RACS radio capability signaling
  • acquisition can be understood as acquisition from configuration, receipt, receipt after request, acquisition through self-learning, derivation acquisition based on unreceived information, or acquisition after processing based on the received information, which can be determined according to actual needs.
  • Some disclosed embodiments do not limit this. For example, when a certain capability indication message sent by the device is not received, it can be deduced that the device does not support the capability.
  • sending can include broadcasting, broadcasting in system messages, or returning a response after receiving the request.
  • the registration request may include one of the following: an attachment request, a location update request, a mobile registration request, and an initial registration request.
  • the de-registration request may include one of the following: a de-attach request.
  • the terminal can be provided with information that can indicate the capability of the terminal.
  • One method for optimizing terminal capability signaling is that the terminal only reports information indicating the capability of the terminal to the network.
  • the network obtains the capabilities of the terminal by mapping the identification information indicating the capabilities of the terminal.
  • the communication device includes at least one of the following: a terminal and a communication network element.
  • the network element may be one of the following: an entity device, a network function entity and a network unit, and a network-side network element.
  • the communication network element may include at least one of the following: a RAN (Radio Access Network, radio access network) network element, and a CN (Core Network) core element.
  • a RAN Radio Access Network, radio access network
  • CN Core Network
  • the core network element may include but is not limited to at least one of the following: core network device, core network node, core network function, core network element, and mobility management entity (Mobility Management) Entity, MME), access mobility management function (Access Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), service gateway (serving GW, SGW), PDN Gateway (PDN Gateway), policy control function (Policy Control Function, PCF), policy and charging rule function unit (Policy and Charging Rules Function, PCRF), GPRS service support node (Serving GPRS Support Node, SGSN) , Gateway GPRS Support Node (Gateway GPRS Support Node, GGSN) and wireless access network equipment.
  • MME mobility management entity
  • Access Management Function Access Management Function
  • SMF session management function
  • UPF User Plane Function
  • UPF User Plane Function
  • SGW service gateway
  • PDN Gateway PDN Gateway
  • Policy Control Function Policy Control Function
  • a radio access network element may include but is not limited to at least one of the following: a radio access network device, a radio access network node, a radio access network function, a radio access Network unit, 3GPP radio access network, non-3GPP radio access network, centralized unit (Centralized Unit, CU), distributed unit (Distributed Unit, DU), base station, evolved base station (evolved Node B, eNB), 5G base station (gNB), radio network controller (Radio Network Controller, RNC), base station (NodeB), non-3GPP interoperability (Non-3GPP Interworking Working Function, N3IWF), access control (Access Controller, AC) node, access Point (Access) device or wireless local area network (Wireless Local Area Networks, WLAN) node.
  • a radio access network device may include but is not limited to at least one of the following: a radio access network device, a radio access network node, a radio access network function, a radio access Network unit, 3GPP radio access network, non-3GP
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE and 5G base station (gNB), some embodiments of the present disclosure are not limited.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved base station
  • gNB evolutional Node B
  • the network side network element may include at least one of the following: a CN network element and a RAN network element.
  • the terminal may include a relay that supports terminal functions.
  • the terminal may also be called a terminal device or a user terminal (User Equipment, UE).
  • the terminal may be a mobile phone, a tablet (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant)
  • terminal-side devices such as mobile Internet devices (MID), wearable devices (Wearable Devices) or vehicle-mounted devices do not limit the specific types of terminals in some embodiments of the present disclosure.
  • the terminal's capability signaling optimization capability and other terminal capabilities are independently defined capability information elements (IEs).
  • IEs capability information elements
  • the terminal reports this capability signaling optimization capability, and the network can decide whether to allocate capability identification information or obtain capability identification information from the terminal according to this capability signaling optimization capability.
  • the words “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design described in some embodiments of the present disclosure as “exemplary” or “for example” should not be construed as being more preferred or advantageous than other embodiments or design. Rather, the use of words such as “exemplary” or “for example” is intended to present related concepts in a specific manner.
  • FIG. 1 is a schematic flowchart of a terminal capability indication method according to some embodiments of the present disclosure. The method is applied to a first communication network element, and includes:
  • Step 11 Send first information to the second communication network element, where the first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal
  • the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to indicate a terminal capability mapped by the first capability identification information; or, the first indication The information is used to indicate a terminal capability that does not have the first capability identification information mapped; the second indication information is used to indicate whether to have the terminal capability of the first terminal; or, the second indication information is used to indicate that the The terminal capability of the first terminal; or, the second indication information is used for not having the terminal capability of the first terminal.
  • the capability identification information of the terminal may be used to identify the capability of the terminal.
  • the capability identification information of the terminal may map a group of terminal capabilities or a complete terminal capability. Since the size of the terminal's capability identification information is smaller than the terminal's capability, the effect of optimizing capacity saving signaling can be achieved.
  • a terminal may have one or more capability identification information.
  • the first indication information is used to indicate whether the terminal capability mapped by the first capability identification information may be used to indicate whether the first communication network element has the first capability The capability of the terminal mapped by the capability identification information.
  • the first communication network element does not have the terminal capability mapped by the first capability identification information, but the terminal capability mapped by the first capability identification information may be obtained from other network elements, and may also be referred to as having the first capability Identify the terminal capabilities for information mapping.
  • the second indication information is used to indicate whether it has the terminal capabilities of the first terminal, and may be: used to indicate whether the first communication network element has a terminal of the first terminal ability.
  • the first communication network element does not have the terminal capability of the first terminal, but the terminal capability of the first terminal may be acquired from other network elements, and may also be referred to as a terminal with the first terminal ability.
  • the first information may include only one of the first indication information and the second indication information, that is, optionally, the first information may include one of the following three:
  • the first capability identification information and the second indication information of the first terminal are The first capability identification information and the second indication information of the first terminal.
  • a terminal may have one or more capability identification information, that is to say, the first capability identification information may include one terminal capability identification information of the first terminal, or may include at least the first terminal. Capability identification information of two terminals.
  • the first indication information is used to indicate whether the first capability identification information is available The mapped terminal capability, or the first indication information is used to indicate the terminal capability mapped with the first capability identification information; or, the first indication information is used to indicate the terminal capability not mapped with the first capability identification information.
  • the first indication information when used to indicate whether there is a terminal capability mapped by the first capability identification information, the first indication information may be represented by 1 bit, for example, 1 indicates having the first capability The terminal capability mapped by the identification information, 0 indicates the terminal capability without the first capability identification information mapping, or 0 indicates the terminal capability with the first capability identification information mapping, and 1 indicates the terminal capability without the first capability identification Terminal capabilities for information mapping.
  • the first indication information When the first indication information is used to indicate the capability of the terminal mapped with the first capability identification information, the first indication information may be represented by 1 bit, for example, 1 or 0 is used to indicate that the first capability identification information is mapped Terminal capability; when the first indication information is used to indicate the terminal capability without the first capability identification information mapping, the first indication information may be represented by 1 bit, for example, adopting 1 or 0 means not having the first capability The capability of the terminal mapped by the capability identification information. It should be noted that the first indication information is specifically expressed by a few bits, and this embodiment is not specifically limited.
  • the first capability identification information when the first capability identification information includes at least two terminal capability identification information of the first terminal, and each of the first indication information is used to indicate whether there is a corresponding The terminal capabilities mapped by the first capability identification information, the first capability identification information and the first indication information are in one-to-one correspondence.
  • the first capability identification information includes two terminal capability identification information (identification 1 and identification 2) of the first terminal, and the first capability identification information further includes the first indication information 1 corresponding to the identification 1, and The first indication information 2 corresponding to the identification 2 is used to indicate whether the terminal capability mapped by the identification 1 is used, and the first indication information 2 is used to indicate whether the terminal capability mapped by the identification 2 is provided.
  • the first indication information may be represented by 1 bit, for example, 1 indicates a terminal capability mapped with the first capability identification information, and 0 indicates a terminal capability not mapped with the first capability identification information, Or, 0 represents the terminal capability with the first capability identification information mapping, and 1 represents the terminal capability without the first capability identification information mapping.
  • the second capability identification information when the first indication information is used to indicate a terminal capability that does not have the first capability identification information mapping, the second capability identification information corresponds one-to-one with the first indication information; wherein, The second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information. That is, the first indication information only indicates the terminal capability identification information without the mapped terminal capability, and does not indicate the terminal capability identification information with the mapped terminal capability.
  • the first information if the first information Contains the first indication information corresponding to the first capability identification information, it is considered that the first communication network element does not have or cannot acquire the terminal capability mapped by the first capability identification information, if the first information does not have the first capability identification information
  • the corresponding first indication information defaults to the first communication network element having or capable of acquiring the terminal capability mapped by the first capability identification information, thereby further reducing overhead.
  • the first capability identification information includes two terminal capability identification information (ID 1 and ID 2) of the first terminal, where the first communication network element has or is capable of acquiring the terminal capability mapped by ID 1, but not Or, the terminal capability mapped by the identifier 2 cannot be obtained.
  • the first information includes only one piece of first indication information indicating that the terminal capability mapped by the identifier 2 is not available.
  • the third capability identification information corresponds one-to-one with the first indication information
  • the first The three capability identification information is the terminal capability identification information having the mapped terminal capability in the first capability identification information. That is, the first indication information only indicates the terminal capability identification information with the mapped terminal capability, and does not indicate the terminal capability identification without the mapped terminal capability.
  • the first capability identification information includes two terminal capability identification information (ID 1 and ID 2) of the first terminal, where the first communication network element has or is capable of acquiring the terminal capability mapped by ID 1, but not Or, the terminal capability mapped by the identifier 2 cannot be obtained.
  • the first information includes only one piece of first indication information indicating that the terminal capability mapped by the marker 1 is included.
  • the third capability identification information when the first indication information is used to indicate a terminal capability mapped with the first capability identification information, and the third capability identification information includes at least two terminal capability identification information of the first terminal At this time, all the third capability identification information corresponds to one piece of the first indication information; the third capability identification information is terminal capability identification information with the mapped terminal capability in the first capability identification information.
  • the first capability identification information includes three terminal capability identification information of the first terminal (identification 1, identification 2 and identification 3), wherein the first communication network element has or can acquire the identification 1 and identification 3 mapping The terminal capabilities of the terminal do not have or are unable to acquire the terminal capabilities mapped by ID2.
  • the first information only includes a first indication information, which is used to indicate the terminal capabilities mapped by ID1 and ID3, thereby further reducing overhead .
  • a list of terminal capability identification information may be listed after the first indication information, and all terminal capability identification information in the list of terminal capability identification information are those with mapped terminal capabilities. Terminal capability identification information.
  • the terminal capability identification information that is not in the list is defaulted to be the terminal capability identification information that does not have the mapped terminal capability.
  • the first indication information when used to indicate a terminal capability that does not have the first capability identification information mapped, and the second capability identification information includes at least two terminal capability identifications of the first terminal Information, all the second capability identification information corresponds to one of the first indication information; wherein, the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information .
  • the first capability identification information includes four terminal capability identification information of the first terminal (identification 1, identification 2, identification 3, and identification 4), wherein the first communication network element has or can acquire identification 1 and The terminal capability mapped by ID 3 does not have or cannot acquire the terminal capability mapped by ID 2 and ID 4.
  • the first information includes only one first indication information, which is used to indicate the terminal mapped by ID 2 and ID 4 Ability to further reduce overhead.
  • a terminal capability identification information list is listed after the first indication information, and all terminal capability identification information in the terminal capability identification information list are terminal capabilities without mapping Terminal identification information.
  • the terminal capability identification information that is not in the list is defaulted to be the terminal capability identification information with the mapped terminal capability.
  • the first communication network element before sending the first information, may further perform at least one of the following:
  • the first indication information and / or the second indication information may include at least one of the following according to whether the first capability identification information has and / or can obtain a mapped terminal capability.
  • the first indication information indicates the terminal capability having the first capability identification information mapping and / or the second indication information indicates the terminal capability having the first terminal;
  • the first indication information indicates the terminal capability having the first capability identification information mapping and / or the second indication information indicates the terminal capability having the first terminal;
  • the first indication information indicates the terminal capability not mapped by the first capability identification information and / or the second indication information indicates that the terminal capability does not have the first terminal Terminal capabilities.
  • the first indication information and / or the second indication information includes at least one of the following according to whether the first capability identification information has a mapped terminal capability.
  • the first communication network element When the first communication network element has the terminal capability mapped by the first capability identification information or can acquire the terminal capability mapped by the first capability identification information, it is determined that the first indication information indicates the terminal having the first capability identification information mapping ability.
  • the first communication network element When the first communication network element has the terminal capability mapped by the first capability identification information or can acquire the terminal capability mapped by the first capability identification information, it is determined that the second indication information indicates the terminal capability of the first terminal.
  • the first communication network element does not have the terminal capability mapped by the first capability identification information but is able to acquire the terminal capability mapped by the first capability identification information, it is determined that the first indication information indicates the terminal having the first capability identification information mapping ability.
  • the first communication network element does not have the terminal capability mapped by the first capability identification information but can acquire the terminal capability mapped by the first capability identification information, it is determined that the second indication information indicates that the terminal capability of the first terminal is available.
  • the first communication network element does not have the terminal capability mapped by the first capability identification information, it is determined that the first indication information indicates that the terminal capability is not mapped by the first capability identification information.
  • the first communication network element does not have the terminal capability mapped by the first capability identification information, it is determined that the second indication information indicates that it does not have the terminal capability of the first terminal.
  • the first communication network element does not have the terminal capability mapped by the first capability identification information and cannot acquire the terminal capability mapped by the first capability identification information, it is determined that the first indication information indicates that the first capability identification information does not exist Mapped terminal capabilities.
  • the first communication network element does not have the terminal capability mapped by the first capability identification information and cannot acquire the terminal capability mapped by the first capability identification information, it is determined that the second indication information indicates that the terminal capability of the first terminal is not available .
  • the first communication network element may send the first information to the second communication network element.
  • the first communication network element includes at least one of the following: a core network element (such as AMF), a first CN network element (such as AMF), and a first RAN network element.
  • a core network element such as AMF
  • a first CN network element such as AMF
  • a first RAN network element such as AMF
  • the second communication network element includes at least one of the following: a core network element (such as AMF), a second CN network element (such as AMF), and a second RAN network element.
  • a core network element such as AMF
  • a second CN network element such as AMF
  • a second RAN network element such as a second RAN network element.
  • the first communication network element is a CN network element
  • the second communication network element is a RAN network element
  • the first communication network element is a first RAN network element having terminal capabilities of the first terminal
  • the second communication network element is a second RAN network element acquiring terminal capabilities of the first terminal
  • the first communication network element is a first CN network element having terminal capabilities of the first terminal
  • the second communication network element is a second CN network element acquiring terminal capabilities of the first terminal.
  • the first RAN network element may be the source RAN network element switched by the first terminal or the RAN network element receiving the terminal context acquisition request
  • the second RAN network element may be the target RAN network element switched by the first terminal The terminal context acquisition request RAN network element.
  • the first CN network element may be the source CN network element switched by the first terminal, and the second core network element is the target CN network element switched by the first terminal.
  • the first CN network element may be a CN network element that receives a terminal context acquisition request or a switching source CN network element
  • the second core network element may be a CN network element that sends a terminal context acquisition request or a switching target CN network element .
  • the first communication network element sends first information related to terminal capabilities, so that the communication network element that receives the first information can select whether to start from the first communication network element or from the terminal according to the first information Acquire terminal capabilities, avoid signaling overhead caused by a failed attempt to acquire terminal capabilities from the first communication network element, or avoid always acquiring terminal capabilities from the terminal, reduce the frequency of acquiring air interface terminal capabilities, and thereby reduce signaling overhead for terminal capability transmission.
  • FIG. 2 is a schematic flowchart of a method for acquiring a terminal capability according to some embodiments of the present disclosure.
  • the method is applied to a second communication network element, and includes:
  • Step 21 Obtain first information from the first communication network element, where the first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal; the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to Indicating a terminal capability mapped with the first capability identification information; or, the first indication information is used to indicate a terminal capability not mapped with the first capability identification information; the second indication information is used to indicate whether the terminal capability The terminal capability of the first terminal; or, the second indication information is used to indicate that the terminal capability of the first terminal is used; or, the second indication information is used to not have the terminal capability of the first terminal;
  • the obtaining the first information includes receiving the first information.
  • Step 22 Acquire the terminal capabilities of the first terminal according to the first information.
  • the second communication network element receives the first information related to the terminal capability, so that it is possible to select whether the communication network element that sends the first information acquires the terminal capability from the terminal instead of always sending
  • the communication network element of an information always obtains the terminal capability from the terminal to reduce the terminal capability transmission overhead.
  • a terminal may have one or more terminal capability identification information, that is, the first capability identification information may include one terminal capability identification information of the first terminal, or may include the first terminal's capability identification information. At least two terminal capability identification information.
  • the first indication information is used to indicate whether the first capability identification information is available The mapped terminal capability, or the first indication information is used to indicate the terminal capability mapped with the first capability identification information; or, the first indication information is used to indicate the terminal capability not mapped with the first capability identification information.
  • the first capability identification information includes at least two terminal capability identification information of the first terminal
  • each of the first indication information is used to indicate whether there is a corresponding The terminal capabilities mapped by the first capability identification information
  • the first capability identification information and the first indication information are in one-to-one correspondence.
  • the second capability identification information when the first indication information is used to indicate a terminal capability that does not have the first capability identification information mapping, the second capability identification information corresponds one-to-one with the first indication information; wherein, The second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information.
  • the third capability identification information corresponds one-to-one with the first indication information
  • the first The three capability identification information is the terminal capability identification information having the mapped terminal capability in the first capability identification information.
  • the third capability identification information when the first indication information is used to indicate a terminal capability mapped with the first capability identification information, and the third capability identification information includes at least two terminal capability identification information of the first terminal At this time, all the third capability identification information corresponds to one piece of the first indication information; the third capability identification information is terminal capability identification information with the mapped terminal capability in the first capability identification information.
  • the second capability identification information when the first indication information is used to indicate a terminal capability that does not have the first capability identification information mapped, and the second capability identification information includes at least two terminal capability identifications of the first terminal Information, all the second capability identification information corresponds to one of the first indication information; wherein, the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information .
  • the first communication network element is a CN network element
  • the second communication network element is a RAN network element
  • the first communication network element is a first RAN network element having terminal capabilities of the first terminal
  • the second communication network element is a second RAN network element acquiring terminal capabilities of the first terminal
  • the first communication network element is a first CN network element having terminal capabilities of the first terminal
  • the second communication network element is a second CN network element acquiring terminal capabilities of the first terminal.
  • the acquiring the terminal capabilities of the first terminal according to the first information includes:
  • the first condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the first capability identification information
  • the second communication network element does not have the terminal capability of the first terminal
  • the first information includes the first indication information and the first indication information indicates a terminal capability mapped with the first capability identification information;
  • the first information includes the second indication information and the second indication information indicates that the terminal has the terminal capability of the first terminal.
  • the second communication network element only needs to obtain the terminal capabilities of the first terminal from the first communication network element or obtain the The terminal capability mapped by the first capability identification information, rather than in any case, acquires the terminal capability of the first terminal from the first communication network element, thereby reducing overhead.
  • the acquiring the terminal capabilities of the first terminal according to the first information includes:
  • the second terminal is the first terminal or Other terminals than the first terminal;
  • the second condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the first capability identification information
  • the second communication network element does not have the terminal capability of the first terminal
  • the first information includes the first indication information and the first indication information indicates a terminal capability that does not have the first capability identification information mapping;
  • the first information does not include the first indication information
  • the first information includes the second indication information and the second indication information indicates that the terminal does not have the terminal capability of the first terminal;
  • the first information does not include the second indication information.
  • the second communication network element only needs to obtain the terminal capabilities of the first terminal or the first capability identifier from the terminal (the first terminal or other terminals) when the above second condition is satisfied
  • the terminal capability of the information mapping does not acquire the terminal capability of the first terminal from the terminal in any case, thereby reducing overhead.
  • the method may further include: The terminal capability of the terminal or the terminal capability mapped by the first capability identification information is synchronized to the first communication network element.
  • the acquiring the terminal capabilities of the first terminal according to the first information includes: acquiring third capability identification information from the first communication network element when the third condition is satisfied Mapped terminal capabilities; when the first capability identification information includes at least two terminal capability identification information of the first terminal, the third capability identification information is a terminal with mapping in the first capability identification information Capability terminal capability identification information;
  • the third condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the third capability identification information
  • the first information includes the first indication information and the first indication information indicates a terminal capability mapped with the third capability identification information;
  • the first information does not include the first indication information corresponding to the third capability identification information and the first indication information corresponding to the third capability identification information does not exist, it indicates by default that the third capability identification information has a mapped terminal capability.
  • the second communication network element acquires the terminal capability mapped by the third capability identification information from the first communication network element, which does not have or cannot be acquired for the first communication network element For another part of the capability identification information in the at least two terminal capability identification information, the second communication network element is not obtained from the first communication network element, thereby avoiding useless overhead.
  • the acquiring the terminal capability of the first terminal according to the first information includes: acquiring the terminal capability mapped from the third capability identification information from the second terminal when the fourth condition is satisfied ;
  • the second terminal is the first terminal or other terminals except the first terminal; when the first capability identification information includes at least two terminal capability identification information of the first terminal,
  • the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information;
  • the fourth condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the second capability identification information
  • the first information includes the first indication information and the first indication information indicates a terminal capability that does not have the second capability identification information mapping;
  • the first information does not include the first indication information corresponding to the second capability identification information and the first indication information corresponding to the second capability identification information does not exist by default indicates that the second capability identification information does not have a mapped terminal capability .
  • the second communication network element when the first terminal has at least two terminal capability identification information, and the first communication network element does not have or cannot obtain part of the at least two terminal capability identification information ( That is, when the terminal capability mapped by the second capability identification information), the second communication network element does not acquire the terminal capability mapped by the second capability identification information from the first communication network element, but from the terminal (the first terminal or Other terminals) to avoid useless overhead.
  • the method may further include: synchronizing the terminal capability mapped from the third capability identification information to the first communication network element .
  • FIG. 3 is a schematic flowchart of a communication method in a first scenario according to some embodiments of the present disclosure.
  • the communication method is applied to a first terminal, a RAN network element (such as NG network element), and a CN network element (such as AMF) communication system.
  • the RAN network element can realize at least part of the functions realized by the second communication network element in the above embodiment
  • the CN network element can realize at least part of the functions realized by the first communication network element in the above embodiment.
  • the following uses NG RAN network element as an example of RAN network element, and AMF as an example of CN network element.
  • the communication method includes:
  • Step 31 The first terminal sends a registration request (Registration Request) to the AMF through the NG RAN network element, and the registration request carries the first capability identification information.
  • Step 32 The AMF determines the first indication information according to whether the first capability identification information has a mapped terminal capability.
  • the first indication information is used to indicate whether the AMF has the terminal capability mapped by the first capability identifier.
  • Step 33 The AMF sends an initial context establishment request (Initial Context setup request) to the NG RAN network element, and the initial context establishment request carries the first information.
  • the first information includes first capability identification information and first indication information of the first terminal, first capability identification information and second indication information, or, second indication information; the first indication information is used to indicate whether the target AMF has A terminal capability mapped by capability identification information; the second indication information is used to indicate whether it has the terminal capability of the first terminal;
  • Step 34 The NG RAN network element establishes an RRC connection with the first terminal
  • Step 35 The NG RAN network element sends an initial context setup response (Initial Context setup Response) to the AMF.
  • Step 36a The NG RAN network element judges whether it has the terminal capability mapped by the first capability identification information, and if not, and the first indication information indicates that the AMF has the terminal capability mapped by the first capability identification, sends the terminal capability of the first terminal to the AMF Query request.
  • Step 37a The AMF returns the terminal capabilities of the first terminal to the NGRAN network element.
  • Step 36b The NG RAN network element judges whether it has the terminal capability mapped by the first capability identification information, and if not, and the first indication information indicates that the AMF does not have the terminal capability mapped by the first capability identification, sends the first terminal to the first terminal The terminal capability query request.
  • Step 37b The first terminal returns the terminal capabilities of the first terminal to the NGRAN network element.
  • Step 38b The NGRAN network element synchronizes the terminal capabilities of the first terminal to the AMF.
  • the terminal capability indication and acquisition methods in some embodiments of the present disclosure are also applicable to terminal switching scenarios, which are described below by way of examples.
  • FIG. 4 is a schematic flowchart of a communication method in a second scenario according to some embodiments of the present disclosure.
  • the communication method is applied to a first terminal, a source RAN network element, a target RAN network element, and a source CN network element (such as AMF) and a target CN network element (such as AMF) communication system, wherein the target RAN network element can implement at least part of the functions implemented by the second communication network element in the foregoing embodiment, and the target CN network element can implement the foregoing embodiment At least some of the functions implemented by the first communication network element of the following are described with AMF as an example of a CN network element.
  • the communication method includes:
  • Step 41 During the handover of the first terminal through the CN, the source RAN network element sends an N2 handover request message to the source AMF.
  • Step 42 The source AMF sends a context creation request message to the target AMF, where the context creation request message carries the first capability identification information of the first terminal.
  • Step 43 The target AMF saves the first capability identification information.
  • Step 44 The target AMF sends a handover request to the target RAN network element, and the handover request carries the first information.
  • the first information includes first capability identification information and first indication information of the first terminal, first capability identification information and second indication information, or, second indication information; the first indication information is used to indicate whether the target AMF has A terminal capability mapped by capability identification information; the second indication information is used to indicate whether it has the terminal capability of the first terminal.
  • Step 45 The target RAN network element sends a handover request confirmation to the target AMF.
  • Step 46 The target AMF sends a create context response to the source AMF.
  • Step 47 The source AMF sends a handover command message to the source RAN network element.
  • Step 48 The source RAN network element sends an RRC message to the first terminal.
  • Step 49 The first terminal sends a handover confirmation to the target RAN network element.
  • Step 410 The target RAN network element sends a handover notification to the target AMF.
  • Step 411 The target AMF sends a handover completion notification to the source AMF.
  • Step 412 The source AMF sends a handover completion confirmation to the target AMF.
  • Step 413a If the first indication information indicates that the target AMF has the terminal capability mapped by the first capability identification information, the target RAN network element sends a terminal capability query of the first terminal to the target AMF.
  • Step 414a The target AMF sends the terminal capabilities of the first terminal to the target RAN network element.
  • Step 413b If the first indication information indicates that the target AMF does not have the terminal capability mapped by the first capability identification information, the target RAN network element sends the first terminal terminal capability query to the first terminal.
  • Step 414b The first terminal sends the terminal capabilities of the first terminal to the target RAN network element.
  • Step 415b The target RAN network element synchronizes the terminal capabilities of the first terminal to the target AMF.
  • the source RAN network element may send the first capability identifier and the first to the target RAN network element Indication information.
  • the first indication information is used to indicate whether the source RAN has the terminal capability mapped by the first capability identifier.
  • the target RAN may acquire the terminal capability of the first terminal from the source RAN network element or the first terminal according to the first indication information.
  • the source core network element may send the first capability identification information of the first terminal to the target core network element
  • the first indication information is used to indicate whether the source core network element has the terminal capability mapped by the first capability identifier
  • the target core network element may send the source core network element or the first element according to the first indication information
  • the terminal acquires the terminal capabilities of the first terminal.
  • FIG. 5 is a schematic structural diagram of a first communication network element according to some embodiments of the present disclosure.
  • the first communication network element 50 includes:
  • the sending module 51 is configured to send first information to the second communication network element, where the first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal
  • the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to indicate a terminal capability mapped by the first capability identification information; or, the first indication The information is used to indicate a terminal capability that does not have the first capability identification information mapped; the second indication information is used to indicate whether to have the terminal capability of the first terminal; or, the second indication information is used to indicate that the The terminal capability of the first terminal; or, the second indication information is used for not having the terminal capability of the first terminal.
  • the first capability identification information when the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information, the first capability identification information is one-to-one with the first indication information correspond. In some embodiments of the present disclosure, when the first indication information is used to indicate a terminal capability that does not have the first capability identification information mapping, the second capability identification information corresponds one-to-one with the first indication information. Wherein, the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information.
  • the third capability identification information corresponds one-to-one with the first indication information.
  • the third capability identification information is terminal capability identification information with the mapped terminal capability in the first capability identification information.
  • the second capability identification information when the first indication information is used to indicate a terminal capability that does not have the first capability identification information mapped, and the second capability identification information includes at least two terminal capability identifications of the first terminal Information, all the second capability identification information corresponds to one piece of the first indication information.
  • the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information.
  • the third capability identification information when the first indication information is used to indicate a terminal capability mapped with the first capability identification information, and the third capability identification information includes at least two terminal capability identification information of the first terminal At this time, all the third capability identification information corresponds to one of the first indication information.
  • the third capability identification information is terminal capability identification information with the mapped terminal capability in the first capability identification information.
  • a receiving module configured to receive the first capability identification information reported by the first terminal or sent by the other communication network element to the first terminal;
  • a first determining module configured to determine the first indication information and / or the second indication information according to whether the first capability identification information has a mapped terminal capability
  • An allocation module configured to allocate the first capability identification information to the terminal capabilities of the first terminal according to the terminal capabilities of the first terminal;
  • a mapping module configured to establish a mapping relationship between the first capability identification information and the terminal capability according to the terminal capability of the first terminal;
  • the second determining module is configured to determine the first capability identification information of the first terminal according to the terminal capability of the first terminal and the mapping relationship between the terminal capability and the capability identification.
  • the sending module is configured to send the first information to the second communication network element.
  • the first communication network element is a CN network element
  • the second communication network element is a RAN network element
  • the first communication network element is a first RAN network element having terminal capabilities of the first terminal
  • the second communication network element is a second RAN network element acquiring terminal capabilities of the first terminal
  • the first communication network element is a first CN network element having terminal capabilities of the first terminal
  • the second communication network element is a second CN network element acquiring terminal capabilities of the first terminal.
  • the first communication network element sends first information related to terminal capabilities, so that the communication network element that receives the first information can select whether to start from the first communication network element or from the terminal according to the first information Acquire terminal capabilities, avoid signaling overhead caused by a failed attempt to acquire terminal capabilities from the first communication network element, or avoid always acquiring terminal capabilities from the terminal, reduce the frequency of acquiring air interface terminal capabilities, and thereby reduce signaling overhead for terminal capability transmission.
  • the first communication network element 60 includes:
  • the first obtaining module 61 is configured to obtain first information from the first communication network element, where the first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal; the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to Indicating a terminal capability mapped with the first capability identification information; or, the first indication information is used to indicate a terminal capability not mapped with the first capability identification information; the second indication information is used to indicate whether the terminal capability The terminal capability of the first terminal; or, the second indication information is used to indicate that the terminal capability of the first terminal is used; or, the second indication information is used to not have the terminal capability of the first terminal;
  • the second obtaining module 62 is configured to obtain the terminal capabilities of the first terminal according to the first information.
  • the first indication information is used to indicate whether there is the first capability identification information mapping Terminal capabilities.
  • the first capability identification information when the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information, the first capability identification information is one-to-one with the first indication information correspond. In some embodiments of the present disclosure, when the first indication information is used to indicate a terminal capability that does not have the first capability identification information mapping, the second capability identification information corresponds one-to-one with the first indication information. Wherein, the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information.
  • the third capability identification information corresponds one-to-one with the first indication information.
  • the third capability identification information is terminal capability identification information with the mapped terminal capability in the first capability identification information.
  • the second capability identification information when the first indication information is used to indicate a terminal capability that does not have the first capability identification information mapped, and the second capability identification information includes at least two terminal capability identifications of the first terminal Information, all the second capability identification information corresponds to one piece of the first indication information.
  • the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information.
  • the third capability identification information when the first indication information is used to indicate a terminal capability mapped with the first capability identification information, and the third capability identification information includes at least two terminal capability identification information of the first terminal At this time, all the third capability identification information corresponds to one of the first indication information.
  • the third capability identification information is terminal capability identification information with the mapped terminal capability in the first capability identification information.
  • the second obtaining module 62 may include:
  • a first obtaining submodule configured to obtain the terminal capability of the first terminal from the first communication network element or obtain the first capability identification information map from the first communication network element when the first condition is satisfied Terminal capabilities;
  • the first condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the first capability identification information
  • the second communication network element does not have the terminal capability of the first terminal
  • the first information includes the first indication information and the first indication information indicates a terminal capability mapped with the first capability identification information;
  • the first information includes the second indication information and the second indication information indicates that the terminal has the terminal capability of the first terminal.
  • the second obtaining module 62 may include:
  • a second obtaining submodule configured to obtain the terminal capability of the first terminal from the second terminal or the terminal capability mapped from the first capability identification information from the second terminal when the second condition is satisfied; the second The terminal is the first terminal or other terminals except the first terminal;
  • the second condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the first capability identification information
  • the second communication network element does not have the terminal capability of the first terminal
  • the first information includes the first indication information and the first indication information indicates a terminal capability that does not have the first capability identification information mapping;
  • the first information does not include the first indication information
  • the first information includes the second indication information and the second indication information indicates that the terminal does not have the terminal capability of the first terminal;
  • the first information does not include the second indication information.
  • the second obtaining module 62 may include:
  • a third obtaining submodule configured to obtain the terminal capability mapped by the third capability identification information from the first communication network element when the third condition is satisfied; when the first capability identification information includes the When there is at least two terminal capability identification information, the third capability identification information is the terminal capability identification information with the mapped terminal capability in the first capability identification information;
  • the third condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the third capability identification information
  • the first information includes the first indication information and the first indication information indicates a terminal capability mapped with the third capability identification information;
  • the first information does not include the first indication information corresponding to the third capability identification information and the first indication information corresponding to the third capability identification information does not exist, it indicates by default that the third capability identification information has a mapped terminal capability.
  • the second obtaining module 62 may include:
  • a fourth obtaining submodule configured to obtain the terminal capability mapped from the third capability identification information from the second terminal when the fourth condition is satisfied; the second terminal is the first terminal or is in addition to the first terminal Other terminals; when the first capability identification information includes at least two terminal capability identification information of the first terminal, the second capability identification information is a terminal capability that does not have a mapping in the first capability identification information The terminal's capability identification information;
  • the fourth condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the second capability identification information
  • the first information includes the first indication information and the first indication information indicates a terminal capability that does not have the second capability identification information mapping;
  • the first information does not include the first indication information corresponding to the second capability identification information and the first indication information corresponding to the second capability identification information does not exist by default indicates that the second capability identification information does not have a mapped terminal capability .
  • the first communication network element is a CN network element
  • the second communication network element is a RAN network element
  • the first communication network element is a first RAN network element having terminal capabilities of the first terminal
  • the second communication network element is a second RAN network element acquiring terminal capabilities of the first terminal
  • the first communication network element is a first CN network element having terminal capabilities of the first terminal
  • the second communication network element is a second CN network element acquiring terminal capabilities of the first terminal.
  • FIG. 7 is a schematic structural diagram of a first communication network element according to another embodiment of the present disclosure.
  • the first communication network element 70 includes: a processor 71 and a memory 72.
  • the first communication network element 70 further includes: a computer program stored on the memory 72 and executable on the processor 71. When the computer program is executed by the processor 71, the following steps are implemented:
  • first information includes at least one of the following: first capability identification information, first indication information, and second indication information;
  • the first capability identification information is terminal capability identification information of the first terminal
  • the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information; or, the first indication information is used to indicate a terminal capability mapped by the first capability identification information; or, the first indication The information is used to indicate a terminal capability that does not have the first capability identification information mapped; the second indication information is used to indicate whether to have the terminal capability of the first terminal; or, the second indication information is used to indicate that the The terminal capability of the first terminal; or, the second indication information is used for not having the terminal capability of the first terminal.
  • the first capability identification information corresponds one-to-one with the first indication information; and / or
  • the second capability identification information corresponds one-to-one with the first indication information; and / or
  • the third capability identification information corresponds one-to-one with the first indication information; and / or
  • the second capability identification information includes at least two terminal capability identification information of the first terminal, all the second The capability identification information corresponds to one of the first indication information; and / or
  • the third capability identification information includes at least two terminal capability identification information of the first terminal, all the third capabilities The identification information corresponds to one of the first indication information;
  • the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information
  • the third capability identification information is a terminal that has a mapping in the first capability identification information Capability terminal capability identification information.
  • the following steps may also be implemented: before sending the first information to the second communication network element, at least one of the following items is also executed:
  • the first capability identification information of the first terminal is determined according to the terminal capability of the first terminal and the mapping relationship between the terminal capability and the capability identification.
  • the following step may also be implemented: sending the first information to the second communication network element.
  • the first communication network element is a CN network element
  • the second communication network element is a RAN network element
  • the first communication network element is a first RAN network element having terminal capabilities of the first terminal
  • the second communication network element is a second RAN network element acquiring terminal capabilities of the first terminal
  • the first communication network element is a first CN network element having terminal capabilities of the first terminal
  • the second communication network element is a second CN network element acquiring terminal capabilities of the first terminal.
  • FIG. 8 is a schematic structural diagram of a first communication network element according to another embodiment of the present disclosure.
  • the first communication network element 80 includes a processor 81 and a memory 82.
  • the first communication network element 80 further includes: a computer program stored on the memory 82 and executable on the processor 81. When the computer program is executed by the processor 81, the following steps are implemented:
  • the first information including at least one of the following: first capability identification information, first indication information, and second indication information; wherein, the first capability identification information is the first Terminal capability identification information of the terminal; the first indication information is used to indicate whether the terminal capability mapped by the first capability identification information is used; or, the first indication information is used to indicate a terminal mapped by the first capability identification information Capability; or, the first indication information is used to indicate a terminal capability that does not have the first capability identification information mapped; the second indication information is used to indicate whether to have the terminal capability of the first terminal; or, the first The second indication information is used to indicate the terminal capability of the first terminal; or, the second indication information is used to have the terminal capability of the first terminal;
  • the terminal capabilities of the first terminal are acquired.
  • the first capability identification information When the first indication information is used to indicate whether there is a terminal capability mapped by the first capability identification information, the first capability identification information corresponds one-to-one with the first indication information; and / or
  • the second capability identification information corresponds one-to-one with the first indication information; and / or
  • the third capability identification information corresponds one-to-one with the first indication information; and / or
  • the second capability identification information includes at least two terminal capability identification information of the first terminal, all the second The capability identification information corresponds to one of the first indication information; and / or
  • the third capability identification information includes at least two terminal capability identification information of the first terminal, all the third capabilities The identification information corresponds to one of the first indication information;
  • the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information
  • the third capability identification information is a terminal that has a mapping in the first capability identification information Capability terminal capability identification information.
  • the acquiring the terminal capabilities of the first terminal according to the first information includes:
  • the first condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the first capability identification information
  • the second communication network element does not have the terminal capability of the first terminal
  • the first information includes the first indication information and the first indication information indicates a terminal capability mapped with the first capability identification information;
  • the first information includes the second indication information and the second indication information indicates that the terminal has the terminal capability of the first terminal.
  • the acquiring the terminal capabilities of the first terminal according to the first information includes:
  • the second terminal is the first terminal or Other terminals than the first terminal;
  • the second condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the first capability identification information
  • the second communication network element does not have the terminal capability of the first terminal
  • the first information includes the first indication information and the first indication information indicates a terminal capability that does not have the first capability identification information mapping;
  • the first information does not include the first indication information
  • the first information includes the second indication information and the second indication information indicates that the terminal does not have the terminal capability of the first terminal;
  • the first information does not include the second indication information.
  • the acquiring terminal capabilities of the first terminal according to the first information includes:
  • the third capability identification information is terminal capability identification information having a mapped terminal capability in the first capability identification information
  • the third condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the third capability identification information
  • the first information includes the first indication information and the first indication information indicates a terminal capability mapped with the third capability identification information;
  • the first information does not include the first indication information corresponding to the third capability identification information and the first indication information corresponding to the third capability identification information does not exist, it indicates by default that the third capability identification information has a mapped terminal capability.
  • the acquiring the terminal capabilities of the first terminal according to the first information includes:
  • the second terminal is the first terminal or other terminals than the first terminal; when the first When the capability identification information includes at least two terminal capability identification information of the first terminal, the second capability identification information is terminal capability identification information that does not have a mapped terminal capability in the first capability identification information;
  • the fourth condition includes at least one of the following:
  • the second communication network element does not have the terminal capability mapped by the second capability identification information
  • the first information includes the first indication information and the first indication information indicates a terminal capability that does not have the second capability identification information mapping;
  • the first information does not include the first indication information corresponding to the second capability identification information and the first indication information corresponding to the second capability identification information does not exist by default indicates that the second capability identification information does not have a mapped terminal capability .
  • the first communication network element is a CN network element
  • the second communication network element is a RAN network element
  • the first communication network element is a first RAN network element having terminal capabilities of the first terminal
  • the second communication network element is a second RAN network element acquiring terminal capabilities of the first terminal
  • the first communication network element is a first CN network element having terminal capabilities of the first terminal
  • the second communication network element is a second CN network element acquiring terminal capabilities of the first terminal.
  • FIG. 9 is a schematic flowchart of an indication method of a terminal capability identifier according to another embodiment of the present disclosure.
  • the indication method is applied to a third communication device and includes:
  • Step 91 Send third indication information; the third indication information is used to indicate whether the first capability identification information is present;
  • the first capability identification information is terminal capability identification information of the first terminal.
  • the third communication network element may determine the third indication information according to whether it has or is able to obtain the first capability identification information; specifically, it includes at least one of the following:
  • the third indication information indicates that the first capability identification information is available
  • the third indication information indicates that the first capability identification information is available
  • the third indication information indicates that the first capability identification information is not available.
  • the third indication information is sent to the fourth communication network element.
  • the third communication device includes at least one of the following: a terminal, a core network element, and a wireless access network element.
  • the third communication device sends third indication information indicating whether the first capability identification information is present, so that the communication network element that receives the third indication information can select whether to select
  • the third communication device obtains the terminal capability identification information, avoids the signaling overhead caused by the failed attempt to obtain the terminal capability identification information from the third communication device, or avoids always acquiring the terminal capability identification information from the third communication device, thereby reducing the transmission of the terminal capability identification information Signaling overhead.
  • FIG. 10 is a schematic flowchart of a method for acquiring a terminal capability identifier according to another embodiment of the present disclosure.
  • the indication method is applied to a fourth communication network element, and includes:
  • Step 101 Obtain third indication information, where the third indication information is used to indicate whether the first capability identification information is available; wherein, the first capability identification information is terminal capability identification information of the first terminal;
  • Step 102 Determine whether to acquire the first capability identification information or determine whether to allocate terminal capability identification information to the first terminal according to the third indication information.
  • the obtaining third indication information includes:
  • the determining whether to acquire the first capability identification information according to the third indication information includes:
  • the first acquisition capability identification condition includes at least one of the following:
  • the fourth communication network element does not have the first capability identification information
  • the third indication information indicates having the first capability identification information.
  • the third indication information determine whether to allocate terminal capability identification information to the first terminal:
  • the terminal capability identification information is allocated to the first terminal;
  • the condition of the first distribution terminal capability identification information includes at least one of the following:
  • the fourth communication network element does not have the first capability identification information
  • the third indication information indicates that the first capability identification information is not available.
  • the fourth communication network element includes at least one of the following: a core network element and a radio access network element.
  • the method further includes:
  • sending to the third communication device For example, sending to the third communication device.
  • the fourth communication network element may be a CN network element and / or a RAN network element.
  • the fourth communication network element may be a RAN network element.
  • the fourth communication network element may be a CN network element.
  • the fourth communication network element may be the second RAN network element.
  • the fourth communication network element may be the second CN network element.
  • FIG. 11 is a schematic flowchart of a communication method in a third scenario according to some embodiments of the present disclosure.
  • the communication method is applied to a first terminal, a RAN network element (such as an NG network element), and a CN network element ( Such as AMF) communication system.
  • a RAN network element such as an NG network element
  • CN network element Such as AMF
  • the following uses AMF as an example of a CN network element.
  • the communication method includes:
  • Step 111 The first terminal sends a registration request to the AMF through the RAN network element, and the registration request carries third indication information; the third indication information is used to indicate whether the first capability identification information is present; wherein, the first The capability identification information is the terminal capability identification information of the first terminal;
  • Step 112 If the third indication information is used to indicate that the first capability identification information and / or the AMF does not have the first capability identification information, the AMF sends an identification request to the first terminal, requesting the terminal of the first terminal Capability identification information;
  • the AMF acquires the first capability identification information from the first terminal;
  • the first acquisition capability identification condition includes at least one of the following:
  • AMF does not have the first capability identification information
  • the third indication information indicates having the first capability identification information.
  • Step 113 The first terminal sends an identification response to the AMF, carrying the first capability identification information.
  • Step 114 AMF sends a registration response to the first terminal.
  • Step 115 The first terminal sends the registration completion to the AMF.
  • FIG. 12 is a schematic flowchart of a communication method in a fourth scenario according to some embodiments of the present disclosure.
  • the communication method is applied to a first terminal, a RAN network element (such as an NG network element), and a CN network element ( Such as AMF) communication system.
  • a RAN network element such as an NG network element
  • CN network element Such as AMF
  • the following uses AMF as an example of a CN network element.
  • the communication method includes:
  • Step 121 The first terminal sends a registration request to the AMF through the RAN network element, and the registration request carries third indication information; the third indication information is used to indicate whether the first capability identification information is present; wherein, the first The capability identification information is the terminal capability identification information of the first terminal;
  • Step 122 If the third indication information is used to indicate that the first capability identification information is not available and / or the AMF does not have the first capability identification information, the AMF allocates the first capability identification information to the first terminal, And send a registration response to the first terminal, where the registration response carries the first capability identification information;
  • AMF allocates terminal capability identification information to the first terminal when the first terminal capability identification information condition is satisfied
  • the condition of the first distribution terminal capability identification information includes at least one of the following:
  • AMF does not have the first capability identification information
  • the third indication information indicates that the first capability identification information is not available.
  • Step 123 The first terminal sends the registration completion to the AMF.
  • FIG. 13 is a schematic flowchart of a communication method in a fifth scenario according to some embodiments of the present disclosure.
  • the communication method is applied to a communication system having a first terminal and a RAN network element (such as an NG network element).
  • the communication method includes:
  • Step 131 The first terminal sends an RRC establishment request message to the RAN network element
  • Step 132 The RAN network element sends an RRC setup message to the first terminal
  • Step 133 The first terminal sends an RRC establishment complete message to the RAN network element, and the RRC establishment complete message carries third indication information; the third indication information is used to indicate whether the first capability identification information is present; wherein, the The first capability identification information is the terminal capability identification information of the first terminal;
  • Step 134 If the third indication information is used to indicate that the first capability identification information is present, the RAN network element sends a terminal capability query to the first terminal, requesting the terminal capability identification information of the first terminal;
  • Step 135 The first terminal sends an RRC establishment complete message to the RAN network element.
  • the RRC establishment complete message carries the first capability identification information.
  • FIG. 14 is a schematic structural diagram of a third communication device according to some embodiments of the present disclosure.
  • the third communication device 140 includes:
  • the sending module 141 is configured to send third indication information; the third indication information is used to indicate whether the first capability identification information is present; wherein, the first capability identification information is terminal capability identification information of the first terminal.
  • the third indication information is sent to the fourth communication network element.
  • the third communication device includes at least one of the following: a terminal, a core network element, and a wireless access network element.
  • the third communication device sends third indication information indicating whether the first capability identification information is present, so that the communication network element that receives the third indication information can select whether to select
  • the third communication device obtains the terminal capability identification information, avoids the signaling overhead caused by the failed attempt to obtain the terminal capability identification information from the third communication device, or avoids always acquiring the terminal capability identification information from the third communication device, thereby reducing the transmission of the terminal capability identification information Signaling overhead.
  • FIG. 15 is a schematic structural diagram of a fourth communication network element according to some embodiments of the present disclosure.
  • the fourth communication network element 150 includes:
  • the obtaining module 151 is configured to obtain third indication information, where the third indication information is used to indicate whether the first capability identification information is available; wherein, the first capability identification information is terminal capability identification information of the first terminal;
  • the determining module 152 is configured to determine whether to acquire the first capability identification information or determine whether to allocate capability identification information to the first terminal according to the third indication information.
  • the obtaining module 151 is configured to obtain the third indication information from a third communication device.
  • the determining module 152 is configured to obtain the first capability identification information from the third communication device when the first capability identification condition is satisfied;
  • the first acquisition capability identification condition includes at least one of the following:
  • the fourth communication network element does not have the first capability identification information
  • the third indication information indicates having the first capability identification information.
  • the determining module 152 is configured to allocate terminal capability identification information to the first terminal when the first terminal capability identification information allocation condition is satisfied;
  • the condition of the first distribution terminal capability identification information includes at least one of the following:
  • the fourth communication network element does not have the first capability identification information
  • the third indication information indicates that the first capability identification information is not available.
  • the fourth communication network element includes at least one of the following: a core network element and a radio access network element.
  • the fourth communication network element further includes:
  • the sending module is configured to send terminal capability identification information allocated to the first terminal.
  • sending to the third communication device For example, sending to the third communication device.
  • the fourth communication network element may be a CN network element and / or a RAN network element.
  • the fourth communication network element may be a RAN network element.
  • the fourth communication network element may be a CN network element.
  • the fourth communication network element may be the second RAN network element.
  • the fourth communication network element may be the second CN network element.
  • FIG. 16 is a schematic structural diagram of a third communication device according to another embodiment of the present disclosure.
  • the third communication device 160 includes a processor 161 and a memory 162.
  • the third communication device 160 further includes: a computer program stored on the memory 162 and executable on the processor 161. When the computer program is executed by the processor 161, the following steps are implemented:
  • the third indication information is used to indicate whether the first capability identification information is present
  • the first capability identification information is terminal capability identification information of the first terminal.
  • the following steps may also be implemented: sending the third indication information to the fourth communication network element.
  • the third communication device includes at least one of the following: a terminal, a core network element, and a wireless access network element.
  • the third communication device sends third indication information indicating whether the first capability identification information is present, so that the communication network element that receives the third indication information can select whether to select
  • the third communication device obtains the terminal capability identification information, avoids the signaling overhead caused by the failed attempt to obtain the terminal capability identification information from the third communication device, or avoids always acquiring the terminal capability identification information from the third communication device, thereby reducing the transmission of the terminal capability identification information Signaling overhead.
  • FIG. 17 is a schematic structural diagram of a fourth communication network element according to another embodiment of the present disclosure.
  • the fourth communication network element 170 includes: a processor 171 and a memory 172.
  • the third communication device 170 further includes: a computer program stored on the memory 172 and executable on the processor 171. When the computer program is executed by the processor 171, the following steps are implemented:
  • the third indication information is used to indicate whether the first capability identification information is available; wherein, the first capability identification information is terminal capability identification information of the first terminal;
  • the third indication information determine whether to acquire the first capability identification information or determine whether to allocate terminal capability identification information to the first terminal.
  • the acquiring third indication information includes:
  • the determining whether to obtain the first capability identification information according to the third indication information includes:
  • the first acquisition capability identification condition includes at least one of the following:
  • the fourth communication network element does not have the first capability identification information
  • the third indication information indicates having the first capability identification information.
  • the following steps may also be implemented: according to the third instruction information, determine whether to allocate terminal capability identification information to the first terminal:
  • the terminal capability identification information is allocated to the first terminal;
  • the condition of the first distribution terminal capability identification information includes at least one of the following:
  • the fourth communication network element does not have the first capability identification information
  • the third indication information indicates that the first capability identification information is not available.
  • the fourth communication network element includes at least one of the following: a core network element and a radio access network element.
  • the method further includes:
  • sending to the third communication device For example, sending to the third communication device.
  • the fourth communication network element may be a CN network element and / or a RAN network element.
  • the fourth communication network element may be a RAN network element.
  • the fourth communication network element may be a CN network element.
  • the fourth communication network element may be the second RAN network element.
  • the fourth communication network element may be the second CN network element.
  • Some embodiments of the present disclosure also provide a computer-readable storage medium that stores a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, implements various processes of the above-described terminal capability indication method embodiment, Moreover, the same technical effect can be achieved, and to avoid repetition, it will not be repeated here.
  • Some embodiments of the present disclosure also provide a computer-readable storage medium that stores a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, implements various processes of the foregoing method embodiment for acquiring terminal capabilities, And can achieve the same technical effect, in order to avoid repetition, no more details here.
  • Some embodiments of the present disclosure also provide a computer-readable storage medium that stores a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, implements various processes of the above-described terminal capability identification indicating method embodiment And can achieve the same technical effect, in order to avoid repetition, no more details here.
  • Some embodiments of the present disclosure also provide a computer-readable storage medium that stores a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, implements various processes of the foregoing method embodiment of acquiring a terminal capability identifier And can achieve the same technical effect, in order to avoid repetition, no more details here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

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Abstract

本公开的一些实施例提供一种终端能力、能力标识的指示方法、获取方法和通信设备，该指示方法包括：发送第一信息，第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息。

Description

终端能力、能力标识的指示方法、获取方法和通信设备
相关申请的交叉引用
本申请主张在2018年11月9日在中国提交的中国专利申请号No.201811333767.0的优先权，其全部内容通过引用包含于此。
技术领域
本公开的一些实施例涉及无线通信技术领域，尤其涉及一种终端能力、能力标识的指示方法、获取方法和通信网元。
背景技术
为了让核心网(Core Network，CN)网元或者无线接入网(Radio Access Network，RAN)网元获取终端能力，终端需要将终端能力上报给CN网元或者RAN网元，或者，在通信网元之间传送终端能力。但是，随着通信系统的演进，终端需要支持的能力越来越多，终端能力的传送带来的开销也越来越大，因而如何减少终端能力传送带来的开销是需要解决的问题。
发明内容
本公开的一些实施例提供一种终端能力、能力标识的指示方法、获取方法和通信设备，用于减少终端能力传送带来的开销。
为了解决上述技术问题，本公开是这样实现的：
第一方面，本公开的一些实施例提供了一种终端能力的指示方法，应用于第一通信网元，包括：
向第二通信网元发送第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；
所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终 端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力。
第二方面，本公开的一些实施例提供了一种终端能力的获取方法，应用于第二通信网元，包括：
从第一通信网元获取第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力；
根据所述第一信息，获取所述第一终端的终端能力。
第三方面，本公开的一些实施例提供了一种第一通信网元，包括：
发送模块，用于向第二通信网元发送第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；
所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力。
第四方面，本公开的一些实施例提供了一种第二通信网元，包括：
第一获取模块，用于从第一通信网元获取第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；所述第 一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力；
第二获取模块，用于根据所述第一信息，获取所述第一终端的终端能力。
第五方面，本公开的一些实施例提供了一种第一通信网元，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述终端能力的指示方法的步骤。
第六方面，本公开的一些实施例提供了一种第二通信网元，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述终端能力的获取方法的步骤。
第七方面，本公开的一些实施例提供了一种终端能力标识的指示方法，应用于第三通信设备，包括：
发送第三指示信息；所述第三指示信息用于指示是否具有所述第一能力标识信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息。
第八方面，本公开的一些实施例提供了一种终端能力标识的获取方法，应用于第四通信网元，包括：
获取第三指示信息，所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
根据所述第三指示信息，确定是否获取所述第一能力标识信息或确定是否为所述第一终端分配能力标识信息。
第九方面，本公开的一些实施例提供了一种第三通信设备，包括：
发送模块，用于发送第三指示信息；所述第三指示信息用于指示是否具有所述第一能力标识信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息。
第十方面，本公开的一些实施例提供了一种第四通信网元，包括：
获取模块，用于获取第三指示信息，所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
确定模块，用于根据所述第三指示信息，确定是否获取所述第一能力标识信息或确定是否为所述第一终端分配能力标识信息。
第十一方面，本公开的一些实施例提供了一种第三通信设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述应用于第三通信设备的终端能力标识的指示方法的步骤。
第十二方面，本公开的一些实施例提供了一种第四通信网元，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述应用第四通信网元的终端能力标识的指示方法的步骤。
第十三方面，本公开的一些实施例提供了一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述终端能力的指示方法的步骤，或者，所述计算机程序被处理器执行时实现上述终端能力的获取方法的步骤，或者，所述计算机程序被处理器执行时实现上述终端能力标识的指示方法的步骤，或者，所述计算机程序被处理器执行时实现上述终端能力标识的获取方法的步骤。
通过本公开的一些实施例，第一通信网元发送与终端能力相关的第一信息，使得接收到第一信息的通信网元能够根据第一信息，选择是从第一通信网元还是从终端获取终端能力，避免向第一通信网元获取终端能力的失败尝试导致的信令开销或避免总是从终端获取终端能力，减少空口终端能力获取频度，从而减少终端能力传送的信令开销。
附图说明
通过阅读下文可选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出可选实施方式的目的，而并不认为是对本公开的限制。而且在整个附图中，用相同的参考符号表示 相同的部件。在附图中：
图1为本公开的一些实施例的终端能力的指示方法的流程示意图；
图2为本公开的一些实施例的终端能力的获取方法的流程示意图；
图3为本公开的一些实施例的第一场景的通信方法的流程示意图；
图4为本公开的一些实施例的第二场景的通信方法的流程示意图；
图5为本公开的一些实施例的第一通信网元的结构示意图；
图6为本公开的一些实施例的第二通信网元的结构示意图；
图7为本公开的另一些实施例的第一通信网元的结构示意图；
图8为本公开的另一些实施例的第二通信网元的结构示意图；
图9为本公开的另一些实施例的终端能力标识的指示方法的流程示意图；
图10为本公开的另一些实施例的终端能力标识的获取方法的流程示意图；
图11为本公开的一些实施例的第三场景的通信方法的流程示意图；
图12为本公开的一些实施例的第四场景的通信方法的流程示意图；
图13为本公开的一些实施例的第五场景的通信方法的流程示意图；
图14为本公开的一些实施例的第三通信设备的结构示意图；
图15为本公开的一些实施例的第四通信网元的结构示意图；
图16为本公开另一实施例的第三通信设备的结构示意图；
图17为本公开另一实施例的第四通信网元的结构示意图。
具体实施方式
为减少空口终端能力获取频度，减少终端能力传送的信令开销，本公开的一些实施例提供了一种终端能力的指示方法、获取方法和通信设备。具体地，当无线接入网(Radio Access Network，RAN))不知道第一能力标识信息指示映射的无线能力时，会向终端获取终端能力。但是如果CN网元已经获取了终端能力，向终端获取终端能力无疑是增加了UU口(终端与基站之间的接口)的信令开销。但CN网元不一定具有第一能力标识信息映射的终端能力；如果RAN网元盲目地向CN网元请求终端能力，当CN没有终端能力时，会造成不必要的信令开销。当CN网元有终端能力时，CN网元总是将终 端能力发送给RAN网元，可能会造成不必要的NG接口(核心网与基站之间的接口)的信令开销。因为RAN网元可能已经具有第一能力标识信息映射的终端能力。
此外，终端每次接入网络时发送终端能力标识，特别是网络已经保存了终端能力标识的情况下，也会造成一定的空口开销。一种部署方式下，并不是所有的RAN网元都一致地支持终端能力标识信息的功能。当终端从支持的RAN网元移动到了不支持的RAN网元后，又移动到了支持的RAN网元。终端不知道网络可能已经失去了终端的终端能力标识信息。所以终端仅发送一次终端能力标识信息也是不适用。支持为了进一步优化终端能力信令，减少终端能力标识信息传送的信令开销，本公开的一些实施例提供了一种终端能力标识的指示方法、获取方法和通信设备，具体地，终端会向通信网元上报终端的第一能力标识信息时，但是如果通信网元已经获取了第一能力标识信息，向终端获取第一能力标识信息无疑是增加了信令开销。
为了最小化接口(包括NG，UU)接口的终端能力传送开销，是本公开要解决的问题。
首先指出的是，终端的能力可以分为终端无线能力和终端核心网能力两种。对于无线能力，终端可根据网络的请求上报终端的无线能力。对于核心网能力，终端可在注册时上报终端的网络能力。
终端可以支持多个频带(Band)和频率(frequency)。随着载波聚合(Carrier Aggregation，CA)和双连接(Dual Connectivity，DC)等技术的引入，需要排列组合各种可能的频带组合，而且各个终端厂家支持的频带组合可能还各不相同，造成无线能力特别庞大。另外，随着网络的演进，越来越多的特性被引入网络，不同的特性往往需要不同的无线能力和网络能力。对于相关的网络特性，终端需要将是否支持的信息告知网络。
本公开的一些实施例中，终端能力的标识信息(可简称为终端能力标识信息)可以用于识别终端能力。终端能力标识信息与终端能力信息之间存在一一映射的关系，通过终端能力标识信息可以映射出终端能力。终端能力标识信息可以映射出一组终端能力或完整的终端能力。由于终端能力标识信息大小比终端能力小，可以达到节省能力信令优化的效果。
可选的，一个终端可以具有一个或多个终端能力标识信息。
本公开的一些实施例中，终端能力可以包括以下至少一项：终端核心网能力和终端无线能力。终端核心网能力也可以称为终端网络能力、非接入网(Non-access stratum，NAS)能力。
可选的，终端无线能力可以包括以下至少一项：载波聚合CA能力和双连接DC能力。载波聚合CA能力可以是支持载波聚合的频带和/或频带组合。双连接DC能力可以是支持双连接DC能力的频带和/或频带的组合
可选的，终端核心网能力可以包括以下至少一项：5G会话管理能力、5G移动性管理能力、用户终端网络能力(UE Network capability)和移动台网络能力(MS Network capability)等。
可选的，终端网络核心网能力可以包括以下至少一项：5G网络能力、4G网络能力(如UE Network capability)和3G网络能力(如MS Network capability)等。
本公开的一些实施例中，“能力”与“终端能力”之间可以表示同一意思，可以混用。所述终端能力可以是一组终端能力集(或者称为终端能力集合)。所以，“能力集”、“能力集合”、“能力”、“终端能力集”、“终端能力集”与“终端能力”可以表示同一意思。
本公开的一些实施例中，所述终端能力标识可以理解为当前终端能力标识信息。当前终端能力标识可以理解为至少以下一项：当前终端能力对应的终端能力标识信息、有效的终端能力标识信息、最新的终端能力标识、终端发送给网络的最新的终端能力标识、网络分配的最新的终端能力标识信息。
本公开的一些实施例中，终端能力上下文也可以称为终端能力的描述信息，可以用于描述具体的能力。
本公开的一些实施例中，“能力标识信息”、“终端能力标识信息”与“终端能力的标识信息”之间可以表示同一意思，可以混用。
本公开的一些实施例中，终端能力信令优化可以包括无线能力信令优化和非接入层能力信令优化。可选的，无线能力信令优化也可以称为：optimizations on UE radio capability signaling，简称为RACS。但需指出的是，标准组织可能对其做出其他命名，本公开的一些实施例不受命名的影响。
可选的，获取可以理解为从配置获得、接收、通过请求后接收、通过自学习获取、根据未收到的信息推导获取或者是根据接收的信息处理后获得，具体可根据实际需要确定，本公开的一些实施例对此不作限定。比如当未收到设备发送的某个能力指示信息时可推导出该设备不支持该能力。
可选的，发送可以包含广播，系统消息中广播，或收到请求后返回响应。
本公开的一些实施例中，注册请求可以包括以下之一：附着请求、位置更新请、移动注册请求、初始注册请求。
本公开的一些实施例中，去注册请求可以包括以下之一：去附着请求。
为了减少能力上报带来的开销，为终端设置能够指示终端能力的信息。一种终端能力信令优化的方法是终端仅向网络上报指示终端能力的信息。网络通过指示终端能力的标识信息映射得到终端的能力。
本公开的一些实施例中，通信设备包括至少以下一项：终端和通信网元。
本公开的一些实施例中，网元可以是以下之一：实体设备、网络功能实体和网络单元、网络侧网元。
在本公开的一些实施例中，通信网元可以包含至少以下之一：RAN(Radio Access Network，无线接入网)网元、CN(Core Network，核心网)网元。
本公开的一些实施例中，核心网网元(CN网元)可以包含但不限于如下至少一项：核心网设备、核心网节点、核心网功能、核心网网元、移动管理实体(Mobility Management Entity，MME)、接入移动管理功能(Access Management Function，AMF)、会话管理功能(Session Management Function，SMF)、用户平面功能(User Plane Function，UPF)、服务网关(serving GW,SGW)、PDN网关(PDN Gate Way，PDN网关)、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)、GPRS服务支持节点(Serving GPRS Support Node，SGSN)、网关GPRS支持节点(Gateway GPRS Support Node，GGSN)和无线接入网设备。
本公开的一些实施例中，无线接入网网元(RAN网元)可以包含但不限于至少以下之一：无线接入网设备、无线接入网节点、无线接入网功能、无线接入网单元、3GPP无线接入网、非3GPP无线接入网、集中单元(Centralized Unit，CU)、分布式单元(Distributed Unit，DU)、基站、演进型基站(evolved  Node B，eNB)、5G基站(gNB)、无线网络控制器(Radio Network Controller，RNC)、基站(NodeB)、非3GPP互操作功能(Non-3GPP Inter Working Function，N3IWF)、接入控制(Access Controller，AC)节点、接入点(Access Point，AP)设备或无线局域网(Wireless Local Area Networks，WLAN)节点。
基站，可以是GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(eNB或e-NodeB，evolutional Node B)及5G基站(gNB)，本公开的一些实施例并不限定。
在本公开的一些实施例中，网络侧网元可以包含至少以下之一：CN网元、RAN网元。
本公开的一些实施例中，终端可以包括支持终端功能的中继。终端也可以称作终端设备或者用户终端(User Equipment，UE)，终端可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备，需要说明的是，在本公开的一些实施例中并不限定终端的具体类型。
本公开的一些实施例中，需说明的是，终端的能力信令优化能力与其他终端能力是独立定义的能力信元(IE)。终端上报此能力信令优化能力，网络可以根据此能力信令优化能力决定是否分配能力标识信息，或者是否向终端获取能力标识信息。
下面将结合本公开的一些实施例中的附图，对本公开的一些实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此 外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B，表示包含单独A，单独B，以及A和B都存在三种情况。
在本公开的一些实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开的一些实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
请参考图1，图1为本公开的一些实施例的终端能力的指示方法的流程示意图，该方法应用于第一通信网元，包括：
步骤11：向第二通信网元发送第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；
所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力。
本公开的一些实施例中，终端的能力标识信息(简称为能力标识信息)可以用于识别终端能力。终端的能力标识信息与终端能力之间存在映射的关系，通过终端的能力标识信息可以映射出终端能力。终端的能力标识信息可以映射出一组终端能力或完整的终端能力。由于终端的能力标识信息大小比终端能力小，可以达到节省能力信令优化的效果。可选的，一个终端可以具有一个或多个能力标识信息。
本公开的一些实施例中，所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力，可以是：用于指示所述第一通信网元是否具有所述第一能力标识信息映射的终端能力。当然，也可以是，第一通信网元不具有第一能力标识信息映射的终端能力，但是可以从其他网元获取第一能力标识信息映射的终端能力，也可以称为具有所述第一能力标识信息映射的终端能力。
本公开的一些实施例中，所述第二指示信息用于指示是否具有所述第一终端的终端能力，可以是：用于指示所述第一通信网元是否具有所述第一终端的终端能力。当然，也可以是，第一通信网元不具有所述第一终端的终端能力，但是可以从其他网元获取所述第一终端的终端能力，也可以称为具有所述第一终端的终端能力。
本公开的一些实施例中，第一信息中可以只包括第一指示信息和第二指示信息中的其中之一，即，可选地，所述第一信息可以包括以下三种之一：
第一终端的第一能力标识信息和第一指示信息；
第一终端的第一能力标识信息和第二指示信息；
第二指示信息。
上述内容中提到，一个终端可以具有一个或多个能力标识信息，也就是说，所述第一能力标识信息中可以包括第一终端的一个终端能力标识信息，也可以包括第一终端的至少两个终端能力标识信息。
在本公开的一些实施例中，当所述第一能力标识信息中包括所述第一终端的一个终端能力标识信息时，所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力，或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力。举例来说，所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力时，所述第一指示信息可以通过1比特表示，例如，1表示具有所述第一能力标识信息映射的终端能力，0表示不具有所述第一能力标识信息映射的终端能力，或者，0表示具有所述第一能力标识信息映射的终端能力，1表示不具有所述第一能力标识信息映射的终端能力。第一指示信息用于指示具有所述第一能力标识信息映射的终端能力时，所述第一指示信息可以通过1比特表示，例如，采用1或0表示具有所述第一能力标识信息映射的终端能力；第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力时，所述第一指示信息可以通过1比特表示，例如，采用1或0表示不具有所述第一能力标识信息映射的终端能力。需要说明的是，第一指示信息具体通过几比特表示，本实施例不做具体限定。
在本公开的一些实施例中，当所述第一能力标识信息中包括所述第一终端的至少两个终端能力标识信息时，且每个所述第一指示信息用于指示是否具有对应的所述第一能力标识信息映射的终端能力，所述第一能力标识信息与所述第一指示信息一一对应。举例来说，第一能力标识信息中包括第一终端的两个终端能力标识信息(标识1和标识2)，所述第一能力标识信息中还包括标识1对应的第一指示信息1，以及标识2对应的第一指示信息2，第一指示信息1用于指示是否具有标识1映射的终端能力，第一指示信息2用于指示是否具有标识2映射的终端能力。本实施例中，所述第一指示信息可以通过1比特表示，例如，1表示具有所述第一能力标识信息映射的终端能力，0表示不具有所述第一能力标识信息映射的终端能力，或者，0表示具有所述第一能力标识信息映射的终端能力，1表示不具有所述第一能力标识信息映射的终端能力。
在本公开的一些实施例中，当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力时，第二能力标识信息与所述第一指示信息一一对应；其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息。即第一指示信息只指示不具有映射的终端能力的终端能力标识信息，而不指示具有映射的终端能力的终端能力标识信息，接收到第一能力标识信息的其他通信网元，若第一信息中具有第一能力标识信息对应的第一指示信息，则认为第一通信网元不具有或不能够获取该第一能力标识信息映射的终端能力，若第一信息中不具有第一能力标识信息对应的第一指示信息，则默认为第一通信网元具有或能够获取该第一能力标识信息映射的终端能力，从而进一步减少开销。举例来说，第一能力标识信息中包括第一终端的两个终端能力标识信息(标识1和标识2)，其中，第一通信网元中具有或者能够获取标识1映射的终端能力，不具有或者不能够获取标识2映射的终端能力，此时，第一信息中只包括一个第一指示信息，该第一指示信息指示不具有标识2映射的终端能力。
在本公开的一些实施例中，当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力时，第三能力标识信息与所述第一指示信息一一对应，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力 的终端能力标识信息。即第一指示信息只指示具有映射的终端能力的终端能力标识信息，而不指示不具有映射的终端能力的终端能力标识，接收到第一能力标识信息的其他通信网元，若第一信息中具有第一能力标识信息对应的第一指示信息，则认为第一通信网元具有或能够获取该第一能力标识信息映射的终端能力，若第一信息中不具有第一能力标识信息对应的第一指示信息，则默认为第一通信网元不具有或不能够获取该第一能力标识信息映射的终端能力，从而进一步减少开销。举例来说，第一能力标识信息中包括第一终端的两个终端能力标识信息(标识1和标识2)，其中，第一通信网元中具有或者能够获取标识1映射的终端能力，不具有或者不能够获取标识2映射的终端能力，此时，第一信息中只包括一个第一指示信息，该第一指示信息指示具有标识1映射的终端能力。
在本公开的一些实施例中，当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力，且第三能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第三能力标识信息对应一个所述第一指示信息；所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。举例来说，第一能力标识信息中包括第一终端的三个终端能力标识信息(标识1、标识2和标识3)，其中，第一通信网元中具有或者能够获取标识1和标识3映射的终端能力，不具有或者不能够获取标识2映射的终端能力，此时，第一信息中只包括一个第一指示信息，用于指示具有标识1和标识3映射的终端能力，从而进一步减少开销。具体的，第一信息的信息结构体中，可以是，第一指示信息后列出一个终端能力标识信息列表，该终端能力标识信息列表中的所有终端能力标识信息均为具有映射的终端能力的终端能力标识信息。而，不在列表中的终端能力标识信息则被默认为是不具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力，且第二能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第二能力标识信息对应一个所述第一指示信息；其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息。举例来说，第一能力标识信息中包括 第一终端的四个终端能力标识信息(标识1、标识2、标识3和标识4)，其中，第一通信网元中具有或者能够获取标识1和标识3映射的终端能力，不具有或者不能够获取标识2和标识4映射的终端能力，此时，第一信息中只包括一个第一指示信息，用于指示具有标识2和标识4映射的终端能力，从而进一步减少开销。具体的，第一信息的信息结构体中，可以是，第一指示信息后列出一个终端能力标识信息列表，该终端能力标识信息列表中的所有终端能力标识信息均为不具有映射的终端能力的终端能力标识信息。而，不在列表中的终端能力标识信息则被默认为是具有映射的终端能力的终端能力标识信息。
本公开的一些实施例中，在发送第一信息之前，所述第一通信网元还可以执行以下至少一项：
01)接收所述第一终端上报的或者其他通信网元发送所述第一能力标识信息；
02)根据所述第一能力标识信息是否具有和/或是否能够获取映射的终端能力，确定所述第一指示信息和/或第二指示信息；
03)根据所述第一终端的终端能力，为所述第一终端的终端能力分配所述第一能力标识信息；
04)根据第一终端的终端能力，建立所述第一能力标识信息与终端能力的映射关系；
05)根据所述第一终端的终端能力，以及，终端能力与能力标识的映射关系，确定所述第一终端的第一能力标识信息。
在一些实施例中，根据所述第一能力标识信息是否具有和/或是否能够获取映射的终端能力，确定所述第一指示信息和/或第二指示信息可以包括至少以下之一：
当具有或能够获取第一能力标识信息映射的终端能力时，第一指示信息指示具有所述第一能力标识信息映射的终端能力和/或第二指示信息指示具有第一终端的终端能力；
当不具有但能够获取第一能力标识信息映射的终端能力时，第一指示信息指示具有所述第一能力标识信息映射的终端能力和/或第二指示信息指示 具有第一终端的终端能力；
当不具有且不能够获取第一能力标识信息映射的终端能力时，第一指示信息指示不具有所述第一能力标识信息映射的终端能力和/或第二指示信息指示不具有第一终端的终端能力。
在一些实施例中，上述02)中，根据所述第一能力标识信息是否具有映射的终端能力，确定所述第一指示信息和/或第二指示信息包括以下至少一项：
021)当第一通信网元具有第一能力标识信息映射的终端能力时或能够获取第一能力标识信息映射的终端能力时，确定第一指示信息指示具有所述第一能力标识信息映射的终端能力。
022)当第一通信网元具有第一能力标识信息映射的终端能力时或能够获取第一能力标识信息映射的终端能力时，确定第二指示信息指示具有所述第一终端的终端能力。
023)当第一通信网元不具有第一能力标识信息映射的终端能力但能够获取第一能力标识信息映射的终端能力时，确定第一指示信息指示具有所述第一能力标识信息映射的终端能力。
024)当第一通信网元不具有第一能力标识信息映射的终端能力时但能够获取第一能力标识信息映射的终端能力时，确定第二指示信息指示具有所述第一终端的终端能力。
025)当第一通信网元不具有第一能力标识信息映射的终端能力时，确定第一指示信息示不具有所述第一能力标识信息映射的终端能力。
026)当第一通信网元不具有第一能力标识信息映射的终端能力时，确定第二指示信息指示不具有所述第一终端的终端能力。
027)当第一通信网元不具有第一能力标识信息映射的终端能力时且不能够获取第一能力标识信息映射的终端能力时，确定第一指示信息示不具有所述第一能力标识信息映射的终端能力。
028)当第一通信网元不具有第一能力标识信息映射的终端能力且不能够获取第一能力标识信息映射的终端能力时时，确定第二指示信息指示不具有所述第一终端的终端能力。
本公开的一些实施例中，所述第一通信网元可以向第二通信网元发送所 述第一信息。
可选的，所述第一通信网元包括以下至少一项：核心网网元(如AMF)，第一CN网元(如AMF)、第一RAN网元。
可选的，所述第二通信网元包括以下至少一项：核心网网元(如AMF)，第二CN网元(如AMF)、第二RAN网元。
具体地，所述第一通信网元为CN网元，所述第二通信网元为RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一RAN网元，所述第二通信网元为获取所述第一终端的终端能力的第二RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一CN网元，所述第二通信网元为获取所述第一终端的终端能力的第二CN网元。
其中，所述第一RAN网元可以是第一终端切换的源RAN网元或接收终端上下文获取请求的RAN网元，而第二RAN网元可以是第一终端切换的目标RAN网元或发送终端上下文获取请求的RAN网元。
第一CN网元可以是第一终端切换的源CN网元，而第二核心网网元是第一终端切换的目标CN网元。
或者，第一CN网元可以是接收终端上下文获取请求的CN网元或切换源CN网元，而第二核心网网元可以是发送终端上下文获取请求的CN网元或切换的目标CN网元。
通过本公开的一些实施例，第一通信网元发送与终端能力相关的第一信息，使得接收到第一信息的通信网元能够根据第一信息，选择是从第一通信网元还是从终端获取终端能力，避免向第一通信网元获取终端能力的失败尝试导致的信令开销或避免总是从终端获取终端能力，减少空口终端能力获取频度，从而减少终端能力传送的信令开销。
请参考图2，图1为本公开的一些实施例的终端能力的获取方法的流程示意图，该方法应用于第二通信网元，包括：
步骤21：从第一通信网元获取第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；所述第 一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力；
所述获取第一信息包括：接收第一信息。
步骤22：根据所述第一信息，获取所述第一终端的终端能力。
本公开的一些实施例中，第二通信网元接收与终端能力相关的第一信息，从而可以选择是发送第一信息的通信网元获取还是从终端获取终端能力，而不是总是从发送第一信息的通信网元或者总是从终端获取终端能力，减少终端能力传送开销。
上述内容中提到，一个终端可以具有一个或多个终端能力标识信息，也就是说，所述第一能力标识信息中可以包括第一终端的一个终端能力标识信息，也可以包括第一终端的至少两个终端能力标识信息。
在本公开的一些实施例中，当所述第一能力标识信息中包括所述第一终端的一个终端能力标识信息时，所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力，或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力。
在本公开的一些实施例中，当所述第一能力标识信息中包括所述第一终端的至少两个终端能力标识信息时，且每个所述第一指示信息用于指示是否具有对应的所述第一能力标识信息映射的终端能力，所述第一能力标识信息与所述第一指示信息一一对应。
在本公开的一些实施例中，当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力时，第二能力标识信息与所述第一指示信息一一对应；其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示具有第一能力 标识信息映射的终端能力时，第三能力标识信息与所述第一指示信息一一对应，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力，且第三能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第三能力标识信息对应一个所述第一指示信息；所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力，且第二能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第二能力标识信息对应一个所述第一指示信息；其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息。
可选的，所述第一通信网元为CN网元，所述第二通信网元为RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一RAN网元，所述第二通信网元为获取所述第一终端的终端能力的第二RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一CN网元，所述第二通信网元为获取所述第一终端的终端能力的第二CN网元。
在本公开的一些实施例中，所述根据所述第一信息，获取所述第一终端的终端能力包括：
当满足第一条件时，向所述第一通信网元获取所述第一终端的终端能力或向所述第一通信网元获取所述第一能力标识信息映射的终端能力；
所述第一条件包括以下至少一项：
所述第二通信网元不具有所述第一能力标识信息映射的终端能力；
所述第二通信网元不具有所述第一终端的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示具有所述第一能力标识信息映射的终端能力；
所述第一信息包括所述第二指示信息且所述第二指示信息指示具有第一 终端的终端能力。
本公开的一些实施例中，当满足上述第一条件时，第二通信网元才需要向第一通信网元获取所述第一终端的终端能力或向所述第一通信网元获取所述第一能力标识信息映射的终端能力，而不是无论什么情况，均向第一通信网元获取第一终端的终端能力，从而减少了开销。
在本公开的一些实施例中，所述根据所述第一信息，获取所述第一终端的终端能力包括：
当满足第二条件时，向第二终端获取所述第一终端的终端能力或向第二终端获取所述第一能力标识信息映射的终端能力；所述第二终端是所述第一终端或除所述第一终端之外的其他终端；
所述第二条件包括以下至少一项：
所述第二通信网元不具有所述第一能力标识信息映射的终端能力；
所述第二通信网元不具有所述第一终端的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示不具有所述第一能力标识信息映射的终端能力；
所述第一信息不包括所述第一指示信息；
所述第一信息包括所述第二指示信息且所述第二指示信息指示不具有第一终端的终端能力；
所述第一信息不包括所述第二指示信息。
本公开的一些实施例中，当满足上述第二条件时，第二通信网元才需要向终端(第一终端或其他终端)获取所述第一终端的终端能力或获取所述第一能力标识信息映射的终端能力，而不是无论什么情况，均向终端获取第一终端的终端能力，从而减少了开销。
本公开的一些实施例中，所述向第二终端获取所述第一终端的终端能力或向第二终端获取所述第一能力标识信息映射的终端能力之后还可以包括：将所述第一终端的终端能力或者所述第一能力标识信息映射的终端能力，同步给所述第一通信网元。
在本公开的一些实施例中，所述根据所述第一信息，获取所述第一终端的终端能力包括：当满足第三条件时，向所述第一通信网元获取第三能力标 识信息映射的终端能力；当所述第一能力标识信息中包括所述第一终端的至少两个终端能力标识信息时，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息；
所述第三条件包括以下至少一项：
所述第二通信网元不具有所述第三能力标识信息映射的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示具有所述第三能力标识信息映射的终端能力；
所述第一信息不包括所述第三能力标识信息对应的第一指示信息且第三能力标识信息对应的第一指示信息不存在时默认指示所述第三能力标识信息具有映射的终端能力。
本公开的一些实施例中，当第一终端具有至少两个能力标识信息，且第一通信网元具有或者能够获取的所述至少两个终端能力标识信息中的部分能力标识信息(即第三能力标识信息)映射的终端能力时，所述第二通信网元从所述第一通信网元中获取第三能力标识信息映射的终端能力，对于第一通信网元不具有或者不能够获取的所述至少两个终端能力标识信息中的另外一部分能力标识信息，第二通信网元并不从第一通信网元获取，从而避免无用的开销。
在本公开的一些实施例中，所述根据所述第一信息，获取所述第一终端的终端能力包括：当满足第四条件时，向第二终端获取第三能力标识信息映射的终端能力；所述第二终端是所述第一终端或除所述第一终端之外的其他终端；当所述第一能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息；
所述第四条件包括以下至少一项：
所述第二通信网元不具有所述第二能力标识信息映射的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示不具有所述第二能力标识信息映射的终端能力；
所述第一信息不包括所述第二能力标识信息对应的第一指示信息且第二能力标识信息对应的第一指示信息不存在时默认指示所述第二能力标识信息 不具有映射的终端能力。
本公开的一些实施例中，当第一终端具有至少两个终端能力标识信息，且第一通信网元不具有或者不能够获取的所述至少两个终端能力标识信息中的部分能力标识信息(即第二能力标识信息)映射的终端能力时，所述第二通信网元不从所述第一通信网元中获取第二能力标识信息映射的终端能力，而是从终端(第一终端或其他终端)获取，从而避免无用的开销。
本公开的一些实施例中，所述向第二终端获取第三能力标识信息映射的终端能力之后还可以包括：将所述第三能力标识信息映射的终端能力同步给所述第一通信网元。
下面以具体通信场景为例，本公开的上述方法进行说明。
本公开的一些实施例的第一场景
请参考图3，图3为本公开的一些实施例的第一场景的通信方法的流程示意图，该通信方法应用于具有第一终端、RAN网元(如NG RAN网元)和CN网元(如AMF)的通信系统。其中，RAN网元能够实现上述实施例中的第二通信网元实现的至少部分功能，CN网元能够实现上述实施例中的第一通信网元实现的至少部分功能。以下以NG RAN网元作为RAN网元的示例，AMF作为CN网元的示例进行描述所述通信方法包括：
步骤31：第一终端通过NG RAN网元向AMF发送注册请求(Registration Request)，注册请求中携带第一能力标识信息。
步骤32：AMF根据所述第一能力标识信息是否具有映射的终端能力，确定所述第一指示信息。第一指示信息用于指示AMF是否具有第一能力标识映射的终端能力。
步骤33：AMF向NG RAN网元发送初始上下文建立请求(Initial Context setup Request)，初始上下文建立请求携带第一信息。第一信息包括第一终端的第一能力标识信息和第一指示信息，第一能力标识信息和第二指示信息，或，第二指示信息；第一指示信息用于指示目标AMF中是否具有第一能力标识信息映射的终端能力；第二指示信息用于指示是否具有所述第一终端的终端能力；
步骤34：NG RAN网元与第一终端建立RRC连接；
步骤35：NG RAN网元向AMF发送初始上下文建立响应(Initial Context setup Response)。
步骤36a：NG RAN网元判断是否具有第一能力标识信息映射的终端能力，如果没有，且第一指示信息指示AMF具有第一能力标识映射的终端能力时，向AMF发送第一终端的终端能力查询请求。
步骤37a：AMF向NG RAN网元返回第一终端的终端能力。
步骤36b：NG RAN网元判断是否具有第一能力标识信息映射的终端能力，如果没有，且第一指示信息指示AMF不具有第一能力标识映射的终端能力时，向第一终端发送第一终端的终端能力查询请求。
步骤37b：第一终端向NG RAN网元返回第一终端的终端能力。
步骤38b：NG RAN网元将第一终端的终端能力同步至AMF。
本公开的一些实施例中的终端能力的指示和获取方法同样适用于终端切换场景，下面举例进行说明。
本公开的一些实施例的第二场景
请参考图4，图4为本公开的一些实施例的第二场景的通信方法的流程示意图，该通信方法应用于具有第一终端、源RAN网元、目标RAN网元、源CN网元(如AMF)和目标CN网元(如AMF)的通信系统，其中，目标RAN网元能够实现上述实施例中的第二通信网元实现的至少部分功能，目标CN网元能够实现上述实施例中的第一通信网元实现的至少部分功能，以下以AMF作为CN网元的示例进行描述，所述通信方法包括：
步骤41：在第一终端通过CN切换的过程中，源RAN网元向源AMF发送N2切换请求消息。
步骤42：源AMF向目标AMF发送创建上下文请求消息，创建上下文请求消息中携带第一终端的第一能力标识信息。
步骤43：目标AMF保存第一能力标识信息。
步骤44：目标AMF向目标RAN网元发送切换请求，切换请求中携带第一信息。第一信息包括第一终端的第一能力标识信息和第一指示信息，第一能力标识信息和第二指示信息，或，第二指示信息；第一指示信息用于指示目标AMF中是否具有第一能力标识信息映射的终端能力；第二指示信息用 于指示是否具有所述第一终端的终端能力。
步骤45：目标RAN网元向目标AMF发送切换请求确认。
步骤46：目标AMF向源AMF发送创建上下文响应。
步骤47：源AMF向源RAN网元发送切换命令消息。
步骤48：源RAN网元向第一终端发送RRC消息。
步骤49：第一终端向目标RAN网元发送切换确认。
步骤410：目标RAN网元向目标AMF发送切换通知。
步骤411：目标AMF向源AMF发送切换完成通知。
步骤412：源AMF向目标AMF发送切换完成确认。
步骤413a：若第一指示信息中指示目标AMF具有第一能力标识信息映射的终端能力，目标RAN网元向目标AMF发送第一终端的终端能力查询。
步骤414a：目标AMF向目标RAN网元发送第一终端的终端能力。
步骤413b：若第一指示信息中指示目标AMF不具有第一能力标识信息映射的终端能力，目标RAN网元向第一终端发送第一终端的终端能力查询。
步骤414b：第一终端向目标RAN网元发送第一终端的终端能力。
步骤415b：目标RAN网元将第一终端的终端能力同步至目标AMF。
在本公开的另外一些实施例中，第一终端进行Xn(Xn是RAN之间的接口)切换时，在切换过程中，源RAN网元可以向目标RAN网元发送第一能力标识以及第一指示信息，第一指示信息用于指示源RAN是否具有第一能力标识映射的终端能力，目标RAN可以根据第一指示信息，向源RAN网元或者第一终端获取第一终端的终端能力。
在本公开的另外一些实施例中，核心网网元之间的上下文获取或切换过程中的上下文传递时，源核心网网元可以向目标核心网网元发送第一终端的第一能力标识信息和第一指示信息，第一指示信息用于指示源核心网网元是否具有第一能力标识映射的终端能力，目标核心网网元可以根据第一指示信息，向源核心网网元或者第一终端获取第一终端的终端能力。
请参考图5，图5为本公开的一些实施例的第一通信网元的结构示意图，该第一通信网元50包括：
发送模块51，用于向第二通信网元发送第一信息，所述第一信息包括以 下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；
所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力。
在本公开的一些实施例中，当所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力时，所述第一能力标识信息与所述第一指示信息一一对应。在本公开的一些实施例中，当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力时，所第二能力标识信息与所述第一指示信息一一对应。其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力时，第三能力标识信息与所述第一指示信息一一对应。其中，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力，且第二能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第二能力标识信息对应一个所述第一指示信息。其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力，且第三能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第三能力标识信息对应一个所述第一指示信息。其中，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
本公开的一些实施例中的第一通信网元还可以包括以下模块中的至少一 项：
接收模块，用于接收所述第一终端上报的或者其他通信网元发送所述第一终端的第一能力标识信息；
第一确定模块，用于根据所述第一能力标识信息是否具有映射的终端能力，确定所述第一指示信息和/或第二指示信息；
分配模块，用于根据所述第一终端的终端能力，为所述第一终端的终端能力分配所述第一能力标识信息；
映射模块，用于根据第一终端的终端能力，建立所述第一能力标识信息与终端能力的映射关系；
第二确定模块，用于根据所述第一终端的终端能力，以及，终端能力与能力标识的映射关系，确定所述第一终端的第一能力标识信息。
本公开的一些实施例中，所述发送模块，用于向第二通信网元发送所述第一信息。
本公开的一些实施例中，所述第一通信网元为CN网元，所述第二通信网元为RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一RAN网元，所述第二通信网元为获取所述第一终端的终端能力的第二RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一CN网元，所述第二通信网元为获取所述第一终端的终端能力的第二CN网元。
通过本公开的一些实施例，第一通信网元发送与终端能力相关的第一信息，使得接收到第一信息的通信网元能够根据第一信息，选择是从第一通信网元还是从终端获取终端能力，避免向第一通信网元获取终端能力的失败尝试导致的信令开销或避免总是从终端获取终端能力，减少空口终端能力获取频度，从而减少终端能力传送的信令开销。
请参考图6，图6为本公开的一些实施例的第二通信网元的结构示意图，该第一通信网元60包括：
第一获取模块61，用于从第一通信网元获取第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；所述第 一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力；
第二获取模块62，用于根据所述第一信息，获取所述第一终端的终端能力。
在本公开的一些实施例中，当所述第一信息中包括所述第一终端的一个第一能力标识信息时，所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力。
在本公开的一些实施例中，当所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力时，所述第一能力标识信息与所述第一指示信息一一对应。在本公开的一些实施例中，当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力时，第二能力标识信息与所述第一指示信息一一对应。其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力时，第三能力标识信息与所述第一指示信息一一对应。其中，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力，且第二能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第二能力标识信息对应一个所述第一指示信息。其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息。
在本公开的一些实施例中，当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力，且第三能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第三能力标识信息对应一个所述第一指 示信息。其中，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
本公开的一些实施例中，所述第二获取模块62可以包括：
第一获取子模块，用于当满足第一条件时，向所述第一通信网元获取所述第一终端的终端能力或向所述第一通信网元获取所述第一能力标识信息映射的终端能力；
所述第一条件包括以下至少一项：
所述第二通信网元不具有所述第一能力标识信息映射的终端能力；
所述第二通信网元不具有所述第一终端的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示具有所述第一能力标识信息映射的终端能力；
所述第一信息包括所述第二指示信息且所述第二指示信息指示具有第一终端的终端能力。
本公开的一些实施例中，所述第二获取模块62可以包括：
第二获取子模块，用于当满足第二条件时，向第二终端获取所述第一终端的终端能力或向第二终端获取所述第一能力标识信息映射的终端能力；所述第二终端是所述第一终端或除所述第一终端之外的其他终端；
所述第二条件包括以下至少一项：
所述第二通信网元不具有所述第一能力标识信息映射的终端能力；
所述第二通信网元不具有所述第一终端的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示不具有所述第一能力标识信息映射的终端能力；
所述第一信息不包括所述第一指示信息；
所述第一信息包括所述第二指示信息且所述第二指示信息指示不具有第一终端的终端能力；
所述第一信息不包括所述第二指示信息。
本公开的一些实施例中，所述第二获取模块62可以包括：
第三获取子模块，用于当满足第三条件时，向所述第一通信网元获取第三能力标识信息映射的终端能力；当所述第一能力标识信息中包括所述第一 终端的至少两个终端能力标识信息时，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息；
所述第三条件包括以下至少一项：
所述第二通信网元不具有所述第三能力标识信息映射的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示具有所述第三能力标识信息映射的终端能力；
所述第一信息不包括所述第三能力标识信息对应的第一指示信息且第三能力标识信息对应的第一指示信息不存在时默认指示所述第三能力标识信息具有映射的终端能力。
本公开的一些实施例中，所述第二获取模块62可以包括：
第四获取子模块，用于当满足第四条件时，向第二终端获取第三能力标识信息映射的终端能力；所述第二终端是所述第一终端或除所述第一终端之外的其他终端；当所述第一能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息；
所述第四条件包括以下至少一项：
所述第二通信网元不具有所述第二能力标识信息映射的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示不具有所述第二能力标识信息映射的终端能力；
所述第一信息不包括所述第二能力标识信息对应的第一指示信息且第二能力标识信息对应的第一指示信息不存在时默认指示所述第二能力标识信息不具有映射的终端能力。
本公开的一些实施例中，所述第一通信网元为CN网元，所述第二通信网元为RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一RAN网元，所述第二通信网元为获取所述第一终端的终端能力的第二RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一CN网元，所述第二通信网元为获取所述第一终端的终端能力的第二CN网元。
请参考图7，图7为本公开另一实施例的第一通信网元的结构示意图， 该第一通信网元70包括：处理器71和存储器72。在本公开的一些实施例中，第一通信网元70还包括：存储在存储器72上并可在处理器71上运行的计算机程序，计算机程序被处理器71执行时实现如下步骤：
向第二通信网元发送第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息；
所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力。
可选的，当所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力时，所述第一能力标识信息与所述第一指示信息一一对应；和/或
当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力时，第二能力标识信息与所述第一指示信息一一对应；和/或
当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力时，第三能力标识信息与所述第一指示信息一一对应；和/或
当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力，且第二能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第二能力标识信息对应一个所述第一指示信息；和/或
当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力，且第三能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第三能力标识信息对应一个所述第一指示信息；
其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
可选的，计算机程序被处理器71执行时还可实现如下步骤：在向第二通 信网元发送第一信息之前，还执行以下至少一项：
接收所述第一终端上报的或者其他通信网元发送第一能力标识信息；
根据所述第一能力标识信息是否具有映射的终端能力，确定所述第一指示信息和/或第二指示信息；
根据所述第一终端的终端能力，为所述第一终端的终端能力分配所述第一能力标识信息；
根据第一终端的终端能力，建立所述第一能力标识信息与终端能力的映射关系；
根据所述第一终端的终端能力，以及，终端能力与能力标识的映射关系，确定所述第一终端的第一能力标识信息。
可选的，计算机程序被处理器71执行时还可实现如下步骤：向第二通信网元发送所述第一信息。
可选的，所述第一通信网元为CN网元，所述第二通信网元为RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一RAN网元，所述第二通信网元为获取所述第一终端的终端能力的第二RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一CN网元，所述第二通信网元为获取所述第一终端的终端能力的第二CN网元。
请参考图8，图8为本公开另一实施例的第一通信网元的结构示意图，该第一通信网元80包括：处理器81和存储器82。在本公开的一些实施例中，第一通信网元80还包括：存储在存储器82上并可在处理器81上运行的计算机程序，计算机程序被处理器81执行时实现如下步骤：
从第一通信网元获取第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第 一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力；
根据所述第一信息，获取所述第一终端的终端能力。
可选的，
当所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力时，所述第一能力标识信息与所述第一指示信息一一对应；和/或
当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力时，第二能力标识信息与所述第一指示信息一一对应；和/或
当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力时，第三能力标识信息与所述第一指示信息一一对应；和/或
当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力，且第二能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第二能力标识信息对应一个所述第一指示信息；和/或
当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力，且第三能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第三能力标识信息对应一个所述第一指示信息；
其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
可选的，计算机程序被处理器81执行时还可实现如下步骤：所述根据所述第一信息，获取所述第一终端的终端能力包括：
当满足第一条件时，向所述第一通信网元获取所述第一终端的终端能力或向所述第一通信网元获取所述第一能力标识信息映射的终端能力；
所述第一条件包括以下至少一项：
所述第二通信网元不具有所述第一能力标识信息映射的终端能力；
所述第二通信网元不具有所述第一终端的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示具有所述第一能力标识信息映射的终端能力；
所述第一信息包括所述第二指示信息且所述第二指示信息指示具有第一 终端的终端能力。
可选的，计算机程序被处理器81执行时还可实现如下步骤：所述根据所述第一信息，获取所述第一终端的终端能力包括：
当满足第二条件时，向第二终端获取所述第一终端的终端能力或向第二终端获取所述第一能力标识信息映射的终端能力；所述第二终端是所述第一终端或除所述第一终端之外的其他终端；
所述第二条件包括以下至少一项：
所述第二通信网元不具有所述第一能力标识信息映射的终端能力；
所述第二通信网元不具有所述第一终端的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示不具有所述第一能力标识信息映射的终端能力；
所述第一信息不包括所述第一指示信息；
所述第一信息包括所述第二指示信息且所述第二指示信息指示不具有第一终端的终端能力；
所述第一信息不包括所述第二指示信息。
可选的，计算机程序被处理器71执行时还可实现如下步骤：所述根据所述第一信息，获取所述第一终端的终端能力包括：
当满足第三条件时，向所述第一通信网元获取第三能力标识信息映射的终端能力；当所述第一能力标识信息中包括所述第一终端的至少两个终端能力标识信息时，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息；
所述第三条件包括以下至少一项：
所述第二通信网元不具有所述第三能力标识信息映射的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示具有所述第三能力标识信息映射的终端能力；
所述第一信息不包括所述第三能力标识信息对应的第一指示信息且第三能力标识信息对应的第一指示信息不存在时默认指示所述第三能力标识信息具有映射的终端能力。
可选的，计算机程序被处理器81执行时还可实现如下步骤：所述根据所 述第一信息，获取所述第一终端的终端能力包括：
当满足第四条件时，向第二终端获取第三能力标识信息映射的终端能力；所述第二终端是所述第一终端或除所述第一终端之外的其他终端；当所述第一能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息；
所述第四条件包括以下至少一项：
所述第二通信网元不具有所述第二能力标识信息映射的终端能力；
所述第一信息包括所述第一指示信息且所述第一指示信息指示不具有所述第二能力标识信息映射的终端能力；
所述第一信息不包括所述第二能力标识信息对应的第一指示信息且第二能力标识信息对应的第一指示信息不存在时默认指示所述第二能力标识信息不具有映射的终端能力。
可选的，所述第一通信网元为CN网元，所述第二通信网元为RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一RAN网元，所述第二通信网元为获取所述第一终端的终端能力的第二RAN网元；或者
所述第一通信网元为具有所述第一终端的终端能力的第一CN网元，所述第二通信网元为获取所述第一终端的终端能力的第二CN网元。
请参考图9，图9为本公开另一实施例的终端能力标识的指示方法的流程示意图，该指示方法应用于第三通信设备，包括：
步骤91：发送第三指示信息；所述第三指示信息用于指示是否具有所述第一能力标识信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息。
其中，发送第三指示信息之前，第三通信网元可以根据是否具有或是否能够获取第一能力标识信息，确定所述第三指示信息；具体包括以下至少一项：
当具有或能够获取第一能力标识信息时，第三指示信息指示具有所述第一能力标识信息；
当不具有但能够获取第一能力标识信息时，第三指示信息指示具有所述第一能力标识信息；
当不具有且不能够获取第一能力标识信息时，第三指示信息指示不具有所述第一能力标识信息。
可选的，向第四通信网元发送所述第三指示信息。
可选的，所述第三通信设备包括以下至少一项：终端，核心网网元、无线接入网网元。
通过本公开的一些实施例，第三通信设备发送指示是否具有所述第一能力标识信息的第三指示信息，使得接收到第三指示信息的通信网元能够根据第三指示信息，选择是否从第三通信设备获取终端能力标识信息，避免向第三通信设备获取终端能力标识信息的失败尝试导致的信令开销或避免总是从第三通信设备获取终端能力标识信息，减少终端能力标识信息传送的信令开销。
请参考图10，图10为本公开另一实施例的终端能力标识的获取方法的流程示意图，该指示方法应用于第四通信网元，包括：
步骤101：获取第三指示信息，所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
步骤102：根据所述第三指示信息，确定是否获取所述第一能力标识信息或确定是否为所述第一终端分配终端能力标识信息。
可选的，所述获取第三指示信息包括：
从第三通信设备获取所述第三指示信息。
可选的，所述根据所述第三指示信息，确定是否获取所述第一能力标识信息包括：
满足第一获取能力标识条件时，向所述第三通信设备获取所述第一能力标识信息；
所述第一获取能力标识条件包括以下至少一项：
所述第四通信网元不具有所述第一能力标识信息；
第三指示信息指示具有所述第一能力标识信息。
可选的，根据所述第三指示信息，确定是否为第一终端分配终端能力标识信息：
当满足第一分配终端能力标识信息条件时，向为第一终端分配终端能力标识信息；
所述第一分配终端能力标识信息条件包括以下至少一项：
所述第四通信网元不具有所述第一能力标识信息；
第三指示信息指示不具有所述第一能力标识信息。
可选的，所述第四通信网元包括以下至少一项：核心网网元、无线接入网网元。
可选的，根据所述第三指示信息，确定是否为第一终端分配终端能力标识信息的步骤之后还包括：
发送为第一终端分配的终端能力标识信息。
比如向第三通信设备发送。
当第三通信设备为终端时，第四通信网元可以是CN网元和/或RAN网元。
当第三通信设备为CN网元时，第四通信网元可以是RAN网元。
当第三通信设备为RAN网元时，第四通信网元可以是CN网元。
当第三通信设备为第一RAN网元时，第四通信网元可以是第二RAN网元。
当第三通信设备为第一CN网元时，第四通信网元可以是第二CN网元。
下面以具体通信场景为例，本公开的上述方法进行说明。
本公开的一些实施例的第三场景
请参考图11，图11为本公开的一些实施例的第三场景的通信方法的流程示意图，该通信方法应用于具有第一终端、RAN网元(如NG RAN网元)和CN网元(如AMF)的通信系统。以下以AMF作为CN网元的示例进行描述，所述通信方法包括：
步骤111：第一终端通过RAN网元向AMF发送注册请求，注册请求中携带第三指示信息；所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
步骤112：若所述第三指示信息用于指示具有所述第一能力标识信息和/或AMF不具有所述第一能力标识信息，AMF向第一终端发送标识请求，请求第一终端的终端能力标识信息；
可选的，AMF在满足第一获取能力标识条件时，向所述第一终端获取所述第一能力标识信息；
所述第一获取能力标识条件包括以下至少一项：
AMF不具有所述第一能力标识信息；
第三指示信息指示具有所述第一能力标识信息。
步骤113：第一终端向AMF发送标识响应，携带第一能力标识信息。
步骤114：AMF向第一终端发送注册响应。
步骤115：第一终端向AMF发送注册完成。
本公开的一些实施例的第四场景
请参考图12，图12为本公开的一些实施例的第四场景的通信方法的流程示意图，该通信方法应用于具有第一终端、RAN网元(如NG RAN网元)和CN网元(如AMF)的通信系统。以下以AMF作为CN网元的示例进行描述，所述通信方法包括：
步骤121：第一终端通过RAN网元向AMF发送注册请求，注册请求中携带第三指示信息；所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
步骤122：若所述第三指示信息用于指示不具有所述第一能力标识信息和/或AMF不具有所述第一能力标识信息，AMF向所述第一终端分配第一能力标识信息，并向第一终端发送注册响应，注册响应中携带所述第一能力标识信息；
AMF在满足第一分配终端能力标识信息条件时，向为第一终端分配终端能力标识信息；
所述第一分配终端能力标识信息条件包括以下至少一项：
AMF不具有所述第一能力标识信息；
第三指示信息指示不具有所述第一能力标识信息。
步骤123：第一终端向AMF发送注册完成。
本公开的一些实施例的第五场景
请参考图13，图13为本公开的一些实施例的第五场景的通信方法的流程示意图，该通信方法应用于具有第一终端和RAN网元(如NG RAN网元)的通信系统，所述通信方法包括：
步骤131：第一终端向RAN网元发送RRC建立请求消息；
步骤132：RAN网元向第一终端发送RRC建立消息；
步骤133：第一终端向RAN网元发送RRC建立完成消息，RRC建立完成消息中携带第三指示信息；所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
步骤134：若所述第三指示信息用于指示具有所述第一能力标识信息，RAN网元向第一终端发送终端能力查询，请求第一终端的终端能力标识信息；
步骤135：第一终端向RAN网元发送RRC建立完成消息，RRC建立完成消息中携带第一能力标识信息。
请参考图14，图14为本公开的一些实施例的第三通信设备的结构示意图，该第三通信设备140包括：
发送模块141，用于发送第三指示信息；所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息。
可选的，向第四通信网元发送所述第三指示信息。
可选的，所述第三通信设备包括以下至少一项：终端，核心网网元、无线接入网网元。
通过本公开的一些实施例，第三通信设备发送指示是否具有所述第一能力标识信息的第三指示信息，使得接收到第三指示信息的通信网元能够根据第三指示信息，选择是否从第三通信设备获取终端能力标识信息，避免向第三通信设备获取终端能力标识信息的失败尝试导致的信令开销或避免总是从第三通信设备获取终端能力标识信息，减少终端能力标识信息传送的信令开销。
请参考图15，图15为本公开的一些实施例的第四通信网元的结构示意 图，该第四通信网元150包括：
获取模块151，用于获取第三指示信息，所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
确定模块152，用于根据所述第三指示信息，确定是否获取所述第一能力标识信息或确定是否为所述第一终端分配能力标识信息。
可选的，获取模块151，用于从第三通信设备获取所述第三指示信息。
可选的，所述确定模块152用于在满足第一获取能力标识条件时，向所述第三通信设备获取所述第一能力标识信息；
所述第一获取能力标识条件包括以下至少一项：
所述第四通信网元不具有所述第一能力标识信息；
第三指示信息指示具有所述第一能力标识信息。
可选的，所述确定模块152用于在满足第一分配终端能力标识信息条件时，向为第一终端分配终端能力标识信息；
所述第一分配终端能力标识信息条件包括以下至少一项：
所述第四通信网元不具有所述第一能力标识信息；
第三指示信息指示不具有所述第一能力标识信息。
可选的，所述第四通信网元包括以下至少一项：核心网网元、无线接入网网元。
可选的，所述第四通信网元还包括：
发送模块，用于发送为第一终端分配的终端能力标识信息。
比如向第三通信设备发送。
当第三通信设备为终端时，第四通信网元可以是CN网元和/或RAN网元。
当第三通信设备为CN网元时，第四通信网元可以是RAN网元。
当第三通信设备为RAN网元时，第四通信网元可以是CN网元。
当第三通信设备为第一RAN网元时，第四通信网元可以是第二RAN网元。
当第三通信设备为第一CN网元时，第四通信网元可以是第二CN网元。
请参考图16，图16为本公开另一实施例的第三通信设备的结构示意图，该第三通信设备160包括：处理器161和存储器162。在本公开的一些实施例中，第三通信设备160还包括：存储在存储器162上并可在处理器161上运行的计算机程序，计算机程序被处理器161执行时实现如下步骤：
发送第三指示信息；所述第三指示信息用于指示是否具有所述第一能力标识信息；
其中，所述第一能力标识信息为第一终端的终端能力标识信息。
可选的，计算机程序被处理器161执行时还可实现如下步骤：向第四通信网元发送所述第三指示信息。
可选的，所述第三通信设备包括以下至少一项：终端，核心网网元、无线接入网网元。
通过本公开的一些实施例，第三通信设备发送指示是否具有所述第一能力标识信息的第三指示信息，使得接收到第三指示信息的通信网元能够根据第三指示信息，选择是否从第三通信设备获取终端能力标识信息，避免向第三通信设备获取终端能力标识信息的失败尝试导致的信令开销或避免总是从第三通信设备获取终端能力标识信息，减少终端能力标识信息传送的信令开销。
请参考图17，图17为本公开另一实施例的第四通信网元的结构示意图，该第四通信网元170包括：处理器171和存储器172。在本公开的一些实施例中，第三通信设备170还包括：存储在存储器172上并可在处理器171上运行的计算机程序，计算机程序被处理器171执行时实现如下步骤：
获取第三指示信息，所述第三指示信息用于指示是否具有所述第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
根据所述第三指示信息，确定是否获取所述第一能力标识信息或确定是否为所述第一终端分配终端能力标识信息。
可选的，计算机程序被处理器171执行时还可实现如下步骤：所述获取第三指示信息包括：
从第三通信设备获取所述第三指示信息。
可选的，计算机程序被处理器171执行时还可实现如下步骤：所述根据 所述第三指示信息，确定是否获取所述第一能力标识信息包括：
满足第一获取能力标识条件时，向所述第三通信设备获取所述第一能力标识信息；
所述第一获取能力标识条件包括以下至少一项：
所述第四通信网元不具有所述第一能力标识信息；
第三指示信息指示具有所述第一能力标识信息。
可选的，计算机程序被处理器171执行时还可实现如下步骤：根据所述第三指示信息，确定是否为第一终端分配终端能力标识信息：
当满足第一分配终端能力标识信息条件时，向为第一终端分配终端能力标识信息；
所述第一分配终端能力标识信息条件包括以下至少一项：
所述第四通信网元不具有所述第一能力标识信息；
第三指示信息指示不具有所述第一能力标识信息。
可选的，所述第四通信网元包括以下至少一项：核心网网元、无线接入网网元。
可选的，根据所述第三指示信息，确定是否为第一终端分配终端能力标识信息的步骤之后还包括：
发送为第一终端分配的终端能力标识信息。
比如向第三通信设备发送。
当第三通信设备为终端时，第四通信网元可以是CN网元和/或RAN网元。
当第三通信设备为CN网元时，第四通信网元可以是RAN网元。
当第三通信设备为RAN网元时，第四通信网元可以是CN网元。
当第三通信设备为第一RAN网元时，第四通信网元可以是第二RAN网元。
当第三通信设备为第一CN网元时，第四通信网元可以是第二CN网元。
本公开的一些实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述终端能力的指示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。
本公开的一些实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述终端能力的获取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。
本公开的一些实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述终端能力标识的指示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。
本公开的一些实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述终端能力标识的获取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，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
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。
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，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(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)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上 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公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (28)

  1. 一种终端能力的指示方法，应用于第一通信网元，包括：
    向第二通信网元发送第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
    其中，所述第一能力标识信息为第一终端的终端能力标识信息；
    所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；
    所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力。
  2. 如权利要求1所述的终端能力的指示方法，其中，当所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力时，所述第一能力标识信息与所述第一指示信息一一对应；和/或
    当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力时，第二能力标识信息与所述第一指示信息一一对应；和/或
    当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力时，第三能力标识信息与所述第一指示信息一一对应；和/或
    当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力，且第二能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第二能力标识信息对应一个所述第一指示信息；和/或
    当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力，且第三能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第三能力标识信息对应一个所述第一指示信息；
    其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
  3. 如权利要求1所述的终端能力的指示方法，其中，所述向第二通信网元发送第一信息之前，还执行以下至少一项：
    接收所述第一终端上报的或者其他通信网元发送所述第一能力标识信息；
    根据是否具有或是否能够获取第一能力标识信息映射的终端能力，确定所述第一指示信息和/或第二指示信息；
    根据所述第一终端的终端能力，为所述第一终端的终端能力分配所述第一能力标识信息；
    根据第一终端的终端能力，建立所述第一能力标识信息与终端能力的映射关系；
    根据所述第一终端的终端能力，以及，终端能力与终端能力标识信息的映射关系，确定所述第一终端的第一能力标识信息。
  4. 如权利要求1至3任一项所述的终端能力的指示方法，其中，
    所述第一通信网元为核心网CN网元，所述第二通信网元为无线接入网RAN网元；或者
    所述第一通信网元为具有所述第一终端的终端能力的第一RAN网元，所述第二通信网元为获取所述第一终端的终端能力的第二RAN网元；或者
    所述第一通信网元为具有所述第一终端的终端能力的第一CN网元，所述第二通信网元为获取所述第一终端的终端能力的第二CN网元。
  5. 一种终端能力的获取方法，应用于第二通信网元，包括：
    从第一通信网元获取第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
    其中，所述第一能力标识信息为第一终端的终端能力标识信息；所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；
    所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力；
    根据所述第一信息，获取所述第一终端的终端能力。
  6. 如权利要求5所述的终端能力的获取方法，其中，
    当所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力时，所述第一能力标识信息与所述第一指示信息一一对应；和/或
    当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力时，第二能力标识信息与所述第一指示信息一一对应；和/或
    当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力时，第三能力标识信息与所述第一指示信息一一对应；和/或
    当所述第一指示信息用于指示不具有第一能力标识信息映射的终端能力，且第二能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第二能力标识信息对应一个所述第一指示信息；和/或
    当所述第一指示信息用于指示具有第一能力标识信息映射的终端能力，且第三能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所有的所述第三能力标识信息对应一个所述第一指示信息；
    其中，所述第二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息。
  7. 如权利要求5或6所述的终端能力的获取方法，其中，所述根据所述第一信息，获取所述第一终端的终端能力包括：
    当满足第一条件时，向所述第一通信网元获取所述第一终端的终端能力或向所述第一通信网元获取所述第一能力标识信息映射的终端能力；
    所述第一条件包括以下至少一项：
    所述第二通信网元不具有所述第一能力标识信息映射的终端能力；
    所述第二通信网元不具有所述第一终端的终端能力；
    所述第一信息包括所述第一指示信息且所述第一指示信息指示具有所述第一能力标识信息映射的终端能力；
    所述第一信息包括所述第二指示信息且所述第二指示信息指示具有第一终端的终端能力。
  8. 如权利要求5或6所述的终端能力的获取方法，其中，所述根据所述第一信息，获取所述第一终端的终端能力包括：
    当满足第二条件时，向第二终端获取所述第一终端的终端能力或向第二终端获取所述第一能力标识信息映射的终端能力；所述第二终端是所述第一终端或除所述第一终端之外的其他终端；
    所述第二条件包括以下至少一项：
    所述第二通信网元不具有所述第一能力标识信息映射的终端能力；
    所述第二通信网元不具有所述第一终端的终端能力；
    所述第一信息包括所述第一指示信息且所述第一指示信息指示不具有所述第一能力标识信息映射的终端能力；
    所述第一信息不包括所述第一指示信息；
    所述第一信息包括所述第二指示信息且所述第二指示信息指示不具有第一终端的终端能力；
    所述第一信息不包括所述第二指示信息。
  9. 如权利要求5或6所述的终端能力的获取方法，其中，所述根据所述第一信息，获取所述第一终端的终端能力包括：
    当满足第三条件时，向所述第一通信网元获取第三能力标识信息映射的终端能力；当所述第一能力标识信息中包括所述第一终端的至少两个终端能力标识信息时，所述第三能力标识信息为所述第一能力标识信息中具有映射的终端能力的终端能力标识信息；
    所述第三条件包括以下至少一项：
    所述第二通信网元不具有所述第三能力标识信息映射的终端能力；
    所述第一信息包括所述第一指示信息且所述第一指示信息指示具有所述第三能力标识信息映射的终端能力；所述第一信息不包括所述第三能力标识信息对应的第一指示信息且第三能力标识信息对应的第一指示信息不存在时默认指示所述第三能力标识信息具有映射的终端能力。
  10. 如权利要求5或6所述的终端能力的获取方法，其中，所述根据所述第一信息，获取所述第一终端的终端能力包括：
    当满足第四条件时，向第二终端获取第二能力标识信息映射的终端能力；所述第二终端是所述第一终端或除所述第一终端之外的其他终端；当所述第一能力标识信息包括所述第一终端的至少两个终端能力标识信息时，所述第 二能力标识信息为所述第一能力标识信息中不具有映射的终端能力的终端能力标识信息；
    所述第四条件包括以下至少一项：
    所述第二通信网元不具有所述第二能力标识信息映射的终端能力；
    所述第一信息包括所述第一指示信息且所述第一指示信息指示不具有所述第二能力标识信息映射的终端能力；
    所述第一信息不包括所述第二能力标识信息对应的第一指示信息且第二能力标识信息对应的第一指示信息不存在时默认指示所述第二能力标识信息不具有映射的终端能力。
  11. 如权利要求5或6所述的终端能力的获取方法，其中，
    所述第一通信网元为CN网元，所述第二通信网元为RAN网元；或者
    所述第一通信网元为具有所述第一终端的终端能力的第一RAN网元，所述第二通信网元为获取所述第一终端的终端能力的第二RAN网元；或者
    所述第一通信网元为具有所述第一终端的终端能力的第一CN网元，所述第二通信网元为获取所述第一终端的终端能力的第二CN网元。
  12. 一种第一通信网元，包括：
    发送模块，用于向第二通信网元发送第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；
    其中，所述第一能力标识信息为第一终端的终端能力标识信息；
    所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；
    所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力。
  13. 一种第二通信网元，包括：
    第一获取模块，用于从第一通信网元获取第一信息，所述第一信息包括以下至少一项：第一能力标识信息、第一指示信息和第二指示信息；其中，所 述第一能力标识信息为第一终端的终端能力标识信息；所述第一指示信息用于指示是否具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示具有所述第一能力标识信息映射的终端能力；或者，第一指示信息用于指示不具有所述第一能力标识信息映射的终端能力；所述第二指示信息用于指示是否具有所述第一终端的终端能力；或者，所述第二指示信息用于指示具有所述第一终端的终端能力；或者，所述第二指示信息用于不具有所述第一终端的终端能力；
    第二获取模块，用于根据所述第一信息，获取所述第一终端的终端能力。
  14. 一种第一通信网元，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至4中任一项所述的终端能力的指示方法的步骤。
  15. 一种第二通信网元，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求5至11中任一项所述的终端能力的获取方法的步骤。
  16. 一种终端能力标识的指示方法，应用于第三通信设备，包括：
    发送第三指示信息；所述第三指示信息用于指示是否具有第一能力标识信息；
    其中，所述第一能力标识信息为第一终端的终端能力标识信息。
  17. 如权利要求16所述的终端能力标识的指示方法，其中，
    向第四通信网元发送所述第三指示信息。
  18. 如权利要求16所述的终端能力标识的指示方法，其中，
    所述第三通信设备包括以下至少一项：终端，核心网网元、无线接入网网元。
  19. 一种终端能力标识的获取方法，应用于第四通信网元，包括：
    获取第三指示信息，所述第三指示信息用于指示是否具有第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
    根据所述第三指示信息，确定是否获取所述第一能力标识信息或确定是否为所述第一终端分配终端能力标识信息。
  20. 如权利要求19所述的终端能力标识的获取方法，其中，所述获取第 三指示信息包括：
    从第三通信设备获取所述第三指示信息。
  21. 如权利要求20所述的终端能力标识的获取方法，其中，所述根据所述第三指示信息，确定是否获取所述第一能力标识信息包括：
    满足第一获取能力标识条件时，向所述第三通信设备获取所述第一能力标识信息；
    所述第一获取能力标识条件包括以下至少一项：
    所述第四通信网元不具有所述第一能力标识信息；
    第三指示信息指示具有所述第一能力标识信息。
  22. 如权利要求19所述的终端能力标识的获取方法，其中，根据所述第三指示信息，确定是否为第一终端分配终端能力标识信息：
    当满足第一分配终端能力标识信息条件时，向为第一终端分配终端能力标识信息；
    所述第一分配终端能力标识信息条件包括以下至少一项：
    所述第四通信网元不具有所述第一能力标识信息；
    第三指示信息指示不具有所述第一能力标识信息。
  23. 如权利要求19所述的终端能力标识的获取方法，其中，
    所述第四通信网元包括以下至少一项：核心网网元、无线接入网网元。
  24. 一种第三通信设备，包括：
    发送模块，用于发送第三指示信息；所述第三指示信息用于指示是否具有第一能力标识信息；
    其中，所述第一能力标识信息为第一终端的终端能力标识信息。
  25. 一种第四通信网元，包括：
    获取模块，用于获取第三指示信息，所述第三指示信息用于指示是否具有第一能力标识信息；其中，所述第一能力标识信息为第一终端的终端能力标识信息；
    确定模块，用于根据所述第三指示信息，确定是否获取所述第一能力标识信息或确定是否为所述第一终端分配能力标识信息。
  26. 一种第三通信设备，包括处理器、存储器及存储在所述存储器上并可 在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求16至18中任一项所述的终端能力标识的指示方法的步骤。
  27. 一种第四通信网元，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求19至23中任一项所述的终端能力标识的指示方法的步骤。
  28. 一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如权利要求1至4中任一项所述的终端能力的指示方法的步骤，或者，所述计算机程序被处理器执行时实现如权利要求5至12中任一项所述的终端能力的获取方法的步骤，或者，所述计算机程序被处理器执行时实现如权利要求16至18中任一项所述的终端能力标识的指示方法的步骤，或者，所述计算机程序被处理器执行时实现如权利要求19至23中任一项所述的终端能力标识的获取方法的步骤。
PCT/CN2019/113592 2018-11-09 2019-10-28 终端能力、能力标识的指示方法、获取方法和通信设备 WO2020093891A1 (zh)

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EP3879864A1 (en) 2021-09-15
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