WO2021143404A1 - 一种ims紧急服务状态指示方法及装置 - Google Patents

一种ims紧急服务状态指示方法及装置 Download PDF

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Publication number
WO2021143404A1
WO2021143404A1 PCT/CN2020/134850 CN2020134850W WO2021143404A1 WO 2021143404 A1 WO2021143404 A1 WO 2021143404A1 CN 2020134850 W CN2020134850 W CN 2020134850W WO 2021143404 A1 WO2021143404 A1 WO 2021143404A1
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WIPO (PCT)
Prior art keywords
snpn
ims emergency
emergency service
base station
indication information
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/134850
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English (en)
French (fr)
Inventor
梁靖
周锐
彦楠
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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 Datang Mobile Communications Equipment Co Ltd filed Critical Datang Mobile Communications Equipment Co Ltd
Priority to KR1020227028767A priority Critical patent/KR102936313B1/ko
Priority to US17/790,611 priority patent/US12302449B2/en
Priority to JP2022543565A priority patent/JP7447283B2/ja
Priority to EP20914057.3A priority patent/EP4093073A4/en
Publication of WO2021143404A1 publication Critical patent/WO2021143404A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/50—Connection management for emergency connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • 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
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/105—PBS [Private Base Station] network

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular to an IP Multimedia Subsystem (IMS) emergency service status indication method and device.
  • IMS IP Multimedia Subsystem
  • NPN network-Non-public network
  • Stand-alone non-public network SNPN
  • Public network non-public network
  • the serving cell shared by the access network which can be connected to the public land mobile network (PLMN) or SNPN of multiple operators at the same time.
  • PLMN public land mobile network
  • SNPN non-access stratum
  • the terminal can obtain the current PLMN's support status for the IMS emergency service through non-access stratum (Non-access stratum, NAS) signaling.
  • NAS non-access stratum
  • the embodiments of the present disclosure provide a method and device for indicating the IMS emergency service status, which are used to indicate the IMS emergency service status to the terminal.
  • embodiments of the present disclosure provide an IMS emergency service status indication method, including:
  • a terminal working in SNPN mode receives system information sent by a base station connected to SNPN and PLMN.
  • the system information includes first indication information for indicating whether SNPN supports IMS emergency services and a second indication for indicating whether PLMN supports IMS emergency services. information;
  • the terminal working in the SNPN mode determines whether to allow the IMS emergency service to be initiated on the SNPN according to the first indication information.
  • the terminal that receives the system information sent by the base station further includes: a terminal that works in PLMN mode; the method further includes:
  • the terminal working in the PLMN mode determines whether to allow the IMS emergency service to be initiated on the PLMN according to the second indication information.
  • the first indication information includes indication information of N SNPNs and indication information corresponding to the N SNPNs for indicating whether the SNPN supports IMS emergency services, where N is equal to the number of SNPNs connected to the base station, and N is An integer greater than or equal to 1.
  • the first indication information includes an indication information used to indicate whether there is an SNPN supporting IMS emergency service in the SNPN to which the base station is connected.
  • the IMS emergency service status indication method further includes:
  • the terminal working in SNPN mode sends the network ID of the SNPN where the terminal is currently located to the base station, so that the base station sends the IMS emergency service request sent by the terminal working in SNPN mode when the SNPN network corresponding to the SNPN network ID supports IMS emergency services To the SNPN corresponding to the SNPN network identifier.
  • embodiments of the present disclosure provide an IMS emergency service status indication method, including:
  • the base station connected to the SNPN and the PLMN sends system information.
  • the system information includes first indication information used to indicate whether the SNPN supports IMS emergency services and second indication information used to indicate whether the PLMN supports IMS emergency services;
  • the base station After the base station receives the IMS emergency service request sent by the terminal working in SNPN mode, it sends the IMS emergency service request to the SNPN supporting IMS emergency service; wherein, the IMS emergency service request is the terminal working in SNPN mode according to the first Instruct the message to be sent.
  • the IMS emergency service status indication method further includes:
  • the base station After receiving the IMS emergency service request sent by the terminal working in the PLMN mode, the base station sends the IMS emergency service request to the PLMN supporting the IMS emergency service; wherein the IMS emergency service request is sent by the terminal working in the PLMN mode according to the second instruction information of.
  • the first indication information includes indication information of N SNPNs and indication information corresponding to the N SNPNs for indicating whether the SNPN supports IMS emergency services, where N is equal to the number of SNPNs connected to the base station, and N is An integer greater than or equal to 1.
  • the first indication information includes an indication information used to indicate whether there is an SNPN supporting IMS emergency service in the SNPN to which the base station is connected.
  • the base station After the base station receives the IMS emergency service request sent by the terminal working in the SNPN mode, it sends the IMS emergency service request to the SNPN supporting the IMS emergency service, including:
  • the base station After the base station receives the IMS emergency service request sent by the terminal working in SNPN mode, it will send the IMS emergency service according to the SNPN network identifier sent by the terminal working in SNPN mode to the base station.
  • the emergency service request is sent to the SNPN corresponding to the SNPN network identity; or, when the base station receives the IMS emergency service request sent by the terminal working in SNPN mode, it selects one of the SNPNs that support IMS emergency services connected to the base station, and sets the IMS emergency service The service request is sent to the selected SNPN.
  • a terminal including:
  • the receiving module is used to receive the system information sent by the base station connected with the SNPN and the PLMN.
  • the system information includes the first indication information used to indicate whether the SNPN supports the IMS emergency service and the second indication information used to indicate whether the PLMN supports the IMS emergency service ;
  • the processing module is used to determine whether to allow the IMS emergency service to be initiated on the SNPN when the terminal is a terminal working in the SNPN mode according to the first indication information; when the terminal is a terminal working in the PLMN mode, according to the second indication information Determine whether to allow IMS emergency services to be initiated on the PLMN.
  • embodiments of the present disclosure provide a base station, which is connected to SNPN and PLMN, including:
  • a sending module configured to send system information, the system information includes first indication information used to indicate whether the SNPN supports IMS emergency services and second indication information used to indicate whether the PLMN supports IMS emergency services;
  • the receiving module is used to receive the IMS emergency service request sent by the terminal working in the SNPN mode; wherein the IMS emergency service request is sent by the terminal working in the SNPN mode according to the first indication information;
  • the processing module is used to send the IMS emergency service request to the SNPN supporting the IMS emergency service.
  • embodiments of the present disclosure provide a terminal, including: a processor, a memory, and a transceiver;
  • Transceiver receiving and sending data under the control of the processor
  • Memory storing computer instructions
  • the processor is used to read computer instructions and perform the following operations:
  • the system information including the first indication information used to indicate whether the SNPN supports the IMS emergency service and the second indication information used to indicate whether the PLMN supports the IMS emergency service;
  • the IMS emergency service it is determined whether to allow the IMS emergency service to be initiated on the SNPN.
  • the first indication information includes indication information of N SNPNs and indication information corresponding to the N SNPNs for indicating whether the SNPN supports IMS emergency services, where N is equal to the number of SNPNs connected to the base station, and N is An integer greater than or equal to 1.
  • the first indication information includes an indication information used to indicate whether there is an SNPN supporting IMS emergency service in the SNPN to which the base station is connected.
  • the operation further includes:
  • a base station including: a processor, a memory, and a transceiver;
  • Transceiver receiving and sending data under the control of the processor
  • Memory storing computer instructions
  • the processor is used to read computer instructions and perform the following operations:
  • the system information includes first indication information used to indicate whether the SNPN supports IMS emergency services and second indication information used to indicate whether the PLMN supports IMS emergency services;
  • the IMS emergency service request After receiving the IMS emergency service request sent by the terminal working in SNPN mode, the IMS emergency service request is sent to the SNPN supporting IMS emergency service; wherein, the IMS emergency service request is sent by the terminal working in SNPN mode according to the first instruction information of.
  • the operation further includes:
  • the IMS emergency service request After receiving the IMS emergency service request sent by the terminal working in the PLMN mode, the IMS emergency service request is sent to the PLMN supporting the IMS emergency service; where the IMS emergency service request is sent by the terminal working in the PLMN mode according to the second instruction information of.
  • the first indication information includes indication information of N SNPNs and indication information corresponding to the N SNPNs for indicating whether the SNPN supports IMS emergency services, where N is equal to the number of SNPNs connected to the base station, and N is An integer greater than or equal to 1.
  • the first indication information includes an indication information used to indicate whether there is an SNPN supporting IMS emergency service in the SNPN to which the base station is connected.
  • the base station After the base station receives the IMS emergency service request sent by the terminal working in the SNPN mode, it sends the IMS emergency service request to the SNPN supporting the IMS emergency service, including:
  • the base station After the base station receives the IMS emergency service request sent by the terminal working in SNPN mode, it will send the IMS emergency service according to the SNPN network identifier sent by the terminal working in SNPN mode to the base station.
  • the emergency service request is sent to the SNPN corresponding to the SNPN network identity; or, when the base station receives the IMS emergency service request sent by the terminal working in SNPN mode, it selects one of the SNPNs that support IMS emergency services connected to the base station, and sets the IMS emergency service The service request is sent to the selected SNPN.
  • embodiments of the present disclosure provide a storage medium, and the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer execute the method described in the first aspect.
  • embodiments of the present disclosure provide a storage medium, and the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer execute the method of the second aspect.
  • the system information sent by the base station connected to the SNPN and the PLMN includes the first indication information for indicating whether the SNPN supports the IMS emergency service and the second indication for indicating whether the PLMN supports the IMS emergency service
  • the SNPN and the PLMN support IMS emergency services for distinguishing indication, so that the terminal working in the SNPN mode can obtain the support status of the SNPN for the IMS emergency service, and then determine whether to allow the IMS emergency service to be initiated in the SNPN.
  • Fig. 1 exemplarily shows a schematic diagram of an application scenario provided by an embodiment of the present disclosure
  • Fig. 2 exemplarily shows a flow chart of a method for indicating an IMS emergency service state provided by an embodiment of the present disclosure
  • FIG. 3 exemplarily shows a schematic diagram of a terminal working in SNPN mode initiating an IMS emergency service according to an embodiment of the present disclosure
  • FIG. 4 exemplarily shows another schematic diagram of IMS emergency service initiated by a terminal working in SNPN mode according to an embodiment of the present disclosure
  • FIG. 5 exemplarily shows a schematic structural diagram of a terminal provided by an embodiment of the present disclosure
  • FIG. 6 exemplarily shows a schematic structural diagram of a base station provided by an embodiment of the present disclosure
  • FIG. 7 exemplarily shows a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • Fig. 8 exemplarily shows a schematic structural diagram of a base station provided by an embodiment of the present disclosure.
  • terminal in the embodiments of the present disclosure, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a way to provide users with voice and/ Or devices with data connectivity, for example, handheld devices with wireless connectivity, vehicle-mounted devices, etc.
  • some examples of terminals are: mobile phones (mobile phones), tablet computers, notebook computers, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, and augmented reality.
  • augmented reality, AR equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids
  • the "base station” in the embodiments of the present disclosure may be a RAN node or a base station.
  • RAN is the part of the network that connects the terminal to the wireless network.
  • a RAN node (or device) is a node (or device) in a radio access network, and can also be called a base station.
  • RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit) , BBU), or wireless fidelity (Wifi) access point (AP), etc.
  • the RAN may include a centralized unit (CU) node and a distributed unit (DU) node.
  • Fig. 1 exemplarily shows a schematic diagram of an application scenario provided by an embodiment of the present disclosure.
  • SNPN and PLMN are connected to the same base station, which can be called a shared base station.
  • the number of SNPNs connected to the base station can be one or more, and the number of PLMNs connected to the base station can be one or more.
  • Different PLMNs and SNPNs correspond to different network identifiers (such as network ID numbers).
  • PLMN is a network established and operated by the government or government-approved operators (such as mobile operators, telecom operators, China Unicom operators, etc.) for the purpose of providing land mobile communication services to the public;
  • SNPN does not depend on the PLMN network, and is operated by the SNPN operator Operation, PLMN and SNPN do not support switching between networks.
  • the serving cell indicates in the system information that it supports IMS emergency services.
  • a terminal in the normal mode including the PLMN mode
  • initiates an IMS emergency service in a restricted state it will be sent by the base station to any PLMN that supports the IMS emergency service to successfully perform the IMS emergency service.
  • terminals that support SNPN mode when working in SNPN mode, they can only use SNPN network services.
  • SNPN mode terminals are in a restricted state in the serving cell. They can only provide IMS emergency services through SNPN, but cannot perform IMS through PLMN. Emergency services.
  • the shared base station is connected to both SNPN and PLMN
  • PLMN mode terminals are allowed to initiate IMS emergency services
  • SNPN mode terminals are not allowed to initiate IMS emergency services.
  • the embodiment of the present disclosure proposes an IMS emergency service status indication method.
  • the present disclosure by separately indicating the SNPN connected to the base station to support the IMS emergency service status, it is solved that in the base station sharing scenario, when the terminal in the SNPN mode is in a restricted state on the serving cell, it is impossible to distinguish the current cell connected to Whether the SNPN network supports IMS emergency services, so there is no guarantee that IMS emergency services will be carried out on the SNPN network.
  • Fig. 2 exemplarily shows a flowchart of an IMS emergency service status indication method provided by an embodiment of the present disclosure. The process includes:
  • the base station connecting the SNPN and the PLMN sends system information of the serving cell.
  • the system information includes first indication information for indicating whether the SNPN supports the IMS emergency service and second indication information for indicating whether the PLMN supports the IMS emergency service.
  • the number of SNPNs is one or more, and the number of PLMNs can also be one or more.
  • the system information sent by the base station includes first indication information used to indicate whether the SNPN supports IMS emergency services and second indication information used to indicate whether the PLMN supports IMS emergency services, so that the system information can distinguishably indicate that the PLMN provides IMS emergency services. Support status and SNPN support status for IMS emergency services.
  • S202 The terminal within the coverage of the base station receives the system information, and determines whether to allow the IMS emergency service request to be initiated on the SNPN or PLMN according to the system information.
  • the terminal working in the SNPN mode within the coverage of the base station receives the system information sent by the base station, and determines whether to allow the IMS emergency service to be initiated on the SNPN according to the first indication information in the system information.
  • the IMS emergency service request is sent to the serving base station; if According to the received first indication information, it is determined that the SNPN to which the serving base station of the terminal is connected does not support the IMS emergency service, and the initiation of the IMS emergency service request is abandoned.
  • the base station After receiving the IMS emergency service request sent by the terminal working in the SNPN mode, the base station sends the request to the SNPN supporting the IMS emergency service.
  • the terminal working in the PLMN mode within the coverage of the base station receives the system information sent by the base station, and determines whether to allow the IMS emergency service to be initiated on the PLMN according to the second indication information in the system information.
  • the IMS emergency service request is sent to the serving base station; if according to the received second indication information, it is determined that the PLMN to which the serving base station of the terminal is connected does not support the IMS emergency service, and the initiation of the IMS emergency service request is abandoned.
  • the base station After receiving the IMS emergency service request sent by the terminal working in the PLMN mode, the base station sends the request to the PLMN supporting the IMS emergency service.
  • the first indication information may include indication information of N SNPNs and indication information corresponding to the N SNPNs for indicating whether the SNPN supports IMS emergency services, where N is equal to the SNPN connected to the base station
  • N is equal to the SNPN connected to the base station
  • the number of, N is an integer greater than or equal to 1.
  • the indication information of the SNPN may be the network identification of the SNPN or other information that can distinguish different SNPNs, such as the index of the SNPN.
  • Table 1 exemplarily shows the content of the first indication information in SIB1, where each SNPN connected to the base station includes the SNPN ID and the cell "ims-EmergencySupport-snpn", where the SNPN ID is the network identifier of the SNPN, " The value of "ims-EmergencySupport-snpn" is used to indicate whether the corresponding SNPN supports IMS emergency services.
  • the information element "ims-EmergencySupport-snpn" can be 1 bit of information.
  • the value of this information element is 1, it means that the corresponding SNPN supports IMS emergency services.
  • the value of this information element is 1, it means that the corresponding SNPN supports IMS emergency services.
  • the first indication information may not include the SNPN indication information (for example, it does not include the SNPN ID), but only includes the information element "ims-EmergencySupport-snpn".
  • the base station and the terminal can pre-appoint or pre-configure the sequence of the SNPNs connected to the base station, and the base station can indicate in the system information whether each SNPN supports IMS emergency services according to this sequence (for example, the first indication information includes N cells "Ims-EmergencySupport-snpn", each cell "ims-EmergencySupport-snpn" corresponds to a SNPN, which is used to indicate whether the corresponding SNPN supports IMS emergency services), the terminal can according to the received first indication information and the order of SNPN To determine whether the corresponding SNPN supports IMS emergency services.
  • the IMS emergency service request is sent to the serving base station.
  • the request may carry the indication information of the SNPN (such as the sequence index of the SNPN or the network identifier), or may not carry the indication information of the SNPN. If the request carries SNPN indication information, the base station sends the request to the corresponding SNPN according to the SNPN indication information; if the request does not carry SNPN indication information, the base station can pre-arrange or agree with the terminal.
  • the pre-configured sequence of the SNPN to which the base station is connected sends the request to the corresponding SNPN.
  • the first indication information includes indication information for indicating whether there is an SNPN supporting IMS emergency service in the SNPN connected to the base station, that is, the number of the first indication information is one, and the first indication The information is used to indicate whether there is an SNPN supporting IMS emergency services in the SNPN connected to the base station.
  • the first indication information in this embodiment occupies less network resource overhead.
  • the first indication information may be 1-bit information.
  • the value of the indication information is 1, it means that there is an SNPN supporting IMS emergency service in the SNPN connected to the base station, and when the value of the indication information is 0, it means that the base station There is no SNPN supporting IMS emergency service in the connected SNPN, and vice versa.
  • the base station can pre-configure or set the support status of the SNPN connected to it for the IMS emergency service. If at least one SNPN of the SNPN connected to the base station supports the IMS emergency service, the first indication information The value is set to 1. If none of the SNPNs connected to the base station supports IMS emergency services, the value of the first indication information is set to 0. The terminal can determine whether the SNPN supports the IMS emergency service according to the value of the received first indication information, and then determine whether to initiate an IMS emergency service request on the SNPN.
  • the information element "ims-EmergencySupport” and the information element “ims-EmergencySupport-snpn” can be defined in the system information (SIB1), where “ims-EmergencySupport” is used to indicate whether the PLMN connected to the base station supports IMS.
  • PLMN for emergency services "ims-EmergencySupport-snpn” is used to indicate whether there is an SNPN that supports IMS emergency services among the SNPNs connected to the base station.
  • ims-EmergencySupport is set to TRUE.
  • the serving cell is connected to one or more SNPNs to support IMS emergency services
  • "ims-EmergencySupport-snpn” is set to TRUE.
  • the The serving base station when a terminal working in SNPN mode needs to initiate an IMS emergency service request, if it is determined according to the value of the first indication information in the received system information that the SNPN connected to the serving base station supports the IMS emergency service, the The serving base station sends an IMS emergency service request.
  • the base station can select one of its connected SNPNs that support IMS emergency services. The selection criteria can be based on the stability of the SNPN or the strength of the SNPN signal received by the terminal, and send the request to the selected SNPN.
  • the base station pre-configures SNPN1, SNPN2, SNPN1, SNPN2 of SNPN1, SNPN2, and SNPN3 connected to it to support IMS emergency services
  • the value of the first indication information in the system message is 1, and the terminal working in SNPN mode receives the first
  • the value of the indication information initiates an IMS emergency service request on the SNPN.
  • the SNPN1 signal is strong and stable, and the base station sends the request to SNPN1 that supports the IMS emergency service.
  • a terminal working in PLMN mode When a terminal working in PLMN mode needs to initiate an IMS emergency service in a restricted state, it will determine whether it can initiate an IMS emergency service based on the cell "ims-EmergencySupport" in the received SIB1. If it can initiate an IMS emergency service, it will send an IMS emergency service to the base station. Send the IMS emergency service request, and the base station sends the IMS emergency service request to the PLMN.
  • the base station for a terminal in a restricted state in the SNPN mode, it is determined whether to allow the IMS emergency service to be initiated on the SNPN according to the first indication information, which solves the problem that the IMS emergency service initiated by the terminal in the SNPN mode is used by the base station.
  • the error is sent to the PLMN that supports IMS emergency services.
  • Figure 3 shows the process in which a terminal working in SNPN mode initiates an IMS emergency service.
  • the base station is connected with PLMN and SNPN, and the terminal is a terminal working in SNPN mode and in a restricted state in the serving cell.
  • the process can include the following steps:
  • the base station broadcasts SIB1, which carries the information element "ims-EmergencySupport” and the information element "ims-EmergencySupport-snpn”.
  • the value of the cell "ims-EmergencySupport-snpn" is "TRUE", which means that the SNPN to which the base station is connected supports IMS emergency services.
  • the terminal working in the SNPN mode receives and stores the information element "ims-EmergencySupport-snpn" in SIB1 indicating whether the SNPN supports the IMS emergency service.
  • the terminal initiates an IMS emergency service process.
  • the terminal sends a radio resource control (Radio Resource Control, RRC) connection establishment request to the base station.
  • RRC Radio Resource Control
  • the cell "Establishment cause" in the RRC connection establishment request is set to "emergency", indicating that it is an IMS emergency service request.
  • the base station After receiving the RRC connection establishment request, the base station establishes an RRC connection with the terminal. After the establishment of the RRC connection between the terminal and the base station is completed, the terminal sends an MSG5 message (RRC establishment or re-establishment complete message) to the base station, which carries the SNPN network identifier.
  • MSG5 message RRC establishment or re-establishment complete message
  • the base station sends the IMS emergency service request to the corresponding SNPN according to the network identifier reported by the terminal in MSG5. If the network identifier is different from the network identifier of the SNPN supporting IMS emergency service connected to the base station, the base station will send the IMS emergency service The request is sent to the SNPN that supports the IMS emergency service with a stronger or more stable SNPN signal connected to the base station.
  • Fig. 4 is another process in which a terminal working in SNPN mode initiates an IMS emergency service.
  • the base station is connected to PLMN and SNPN
  • the terminal is a terminal that works in SNPN mode and is in a restricted state in the serving cell.
  • the process can include the following steps:
  • SIB1 The base station broadcasts SIB1, which carries the indication information of each SNPN connected to the base station and the information element "ims-EmergencySupport-snpn".
  • the indication information of the SNPN can be the network identifier of the SNPN or other information that can distinguish different SNPNs, such as the index of the SNPN.
  • the value of "ims-EmergencySupport-snpn" is used to indicate whether the corresponding SNPN supports IMS emergency services.
  • the indication information of the SNPN in this embodiment is "SNPN ID 1 ims-EmergencySupport-snpn", "SNPN ID 2 ims-EmergencySupport-snpn", etc.
  • S403 The terminal initiates an IMS emergency service process.
  • This step is similar to step 303.
  • the terminal sends an MSG5 message (RRC establishment or re-establishment complete message) to the base station, which carries the network identity of the SNPN supporting IMS emergency services. If the SNPN corresponding to the network identifier supports IMS emergency services, the base station sends the IMS emergency service request sent by the terminal to the corresponding SNPN. If the SNPN corresponding to the network identifier does not support IMS emergency services, the base station sends the IMS emergency service sent by the terminal The request is sent to an SNPN that supports IMS emergency services with a strong or stable SNPN signal.
  • MSG5 message RRC establishment or re-establishment complete message
  • the system message sent by the base station can distinguish between the PLMN's support status for IMS emergency services and the SNPN support status for IMS emergency services, so that the terminal in SNPN mode can determine the current service in a restricted state. Whether the SNPN connected to the cell supports the IMS emergency service, the terminal in the PLMN mode can determine whether the PLMN connected to the current serving cell supports the IMS emergency service in the restricted state.
  • the base station can send the IMS emergency services of different mode terminals to the PLMN or SNPN according to the network identification (PLMN ID or SNPN ID) reported by the terminal.
  • the embodiments of the present disclosure provide a terminal, which can implement the terminal-side method in the above-mentioned embodiments.
  • the terminal includes: a receiving module 501, a processing module 502, and a sending module 503.
  • the receiving module 501 is configured to receive system information sent by a base station connected to SNPN and PLMN, where the system information includes first indication information used to indicate whether the SNPN supports IMS emergency services and a second indication information used to indicate whether the PLMN supports IMS emergency services 2.
  • the system information includes first indication information used to indicate whether the SNPN supports IMS emergency services and a second indication information used to indicate whether the PLMN supports IMS emergency services 2.
  • the processing module 502 is configured to determine whether to allow the IMS emergency service to be initiated on the SNPN when the terminal is a terminal working in the SNPN mode according to the first indication information; when the terminal is a terminal working in the PLMN mode, according to the second indication The information determines whether to allow the initiation of IMS emergency services on the PLMN;
  • the sending module 503 is configured to send an IMS emergency service request to the base station according to the first indication information, and the IMS emergency service request is sent by the base station to the SNPN supporting the IMS emergency service.
  • the terminal working in the SNPN mode sends the network identifier of the SNPN where the terminal is currently located to the base station, so that the base station sends the IMS emergency sent by the terminal working in the SNPN mode when the SNPN network corresponding to the SNPN network identifier supports IMS emergency services.
  • the service request is sent to the SNPN corresponding to the SNPN network identifier.
  • the sending module 503 is further configured to send an IMS emergency service request to the base station according to the second indication information, and the IMS emergency service request is sent by the base station to the PLMN supporting the IMS emergency service.
  • the first indication information includes indication information of N SNPNs and indication information corresponding to the N SNPNs for indicating whether the SNPN supports IMS emergency services, where N is equal to the base station
  • the number of connected SNPNs, N is an integer greater than or equal to 1; or, the first indication information includes an indication information for indicating whether there is an SNPN supporting IMS emergency service in the SNPN connected to the base station.
  • each module in the above terminal may refer to the description of the function implemented by the network device in the foregoing embodiment, which will not be repeated here.
  • the embodiments of the present disclosure also provide a base station, which can implement the method on the base station side in the above embodiments.
  • the base station includes: a sending module 601, a receiving module 602, and a processing module 603.
  • the sending module 601 is configured to send system information, where the system information includes first indication information used to indicate whether the SNPN supports IMS emergency services and second indication information used to indicate whether the PLMN supports IMS emergency services;
  • the receiving module 602 is configured to receive an IMS emergency service request sent by a terminal working in SNPN mode; wherein the IMS emergency service request is sent by a terminal working in SNPN mode according to the first indication information;
  • the processing module 603 is configured to send the IMS emergency service request sent by the terminal working in the SNPN mode to the SNPN.
  • the receiving module 602 is further configured to receive an IMS emergency service request sent by a terminal operating in the PLMN mode; wherein the IMS emergency service request is sent by the terminal operating in the PLMN mode according to the second indication information.
  • processing module 603 is further configured to send the IMS emergency service request sent by the terminal working in the PLMN mode to the PLMN.
  • the first indication information includes indication information of N SNPNs and indication information corresponding to the N SNPNs for indicating whether to support the IMS emergency service, where N is equal to the number of SNPNs connected to the base station, and N is greater than Or an integer equal to 1; or, the first indication information includes an indication information used to indicate whether there is an SNPN supporting IMS emergency service in the SNPN connected to the base station.
  • the receiving module 602 sends the IMS emergency service request to the SNPN supporting IMS emergency service, including:
  • the base station After the base station receives the IMS emergency service request sent by the terminal working in SNPN mode, it will send the IMS emergency service according to the SNPN network identifier sent by the terminal working in SNPN mode to the base station.
  • the emergency service request is sent to the SNPN corresponding to the SNPN network identity; or, when the base station receives the IMS emergency service request sent by the terminal working in SNPN mode, it selects one of the SNPNs that support IMS emergency services connected to the base station, and sets the IMS emergency service The service request is sent to the selected SNPN.
  • each module in the above terminal may refer to the description of the function implemented by the network device in the foregoing embodiment, which will not be repeated here.
  • the embodiments of the present disclosure also provide a terminal, which can implement the terminal-side functions in the above-mentioned embodiments.
  • Fig. 7 exemplarily shows a schematic structural diagram of a terminal in an embodiment of the present disclosure.
  • the terminal may include: a processor 701, a memory 702, a transceiver 703, and a bus interface 704.
  • the memory 702 may store computer instructions used by the processor 701 when performing operations.
  • the transceiver 703 is used to receive and send data under the control of the processor 701.
  • the processor 701 is used to read computer instructions stored in the memory 702, is responsible for managing the bus architecture and general processing, and performs the following operations:
  • the system information including first indication information used to indicate whether the SNPN supports IMS emergency services and second indication information used to indicate whether the PLMN supports IMS emergency services;
  • the IMS emergency service it is determined whether to allow the IMS emergency service to be initiated on the SNPN.
  • the first indication information includes indication information of N SNPNs and indication information corresponding to the N SNPNs and used to indicate whether the SNPN supports IMS emergency services, where N is equal to that of the base station connection.
  • the number of SNPNs, N is an integer greater than or equal to 1; or, the first indication information includes an indication information for indicating whether there is an SNPN supporting IMS emergency service in the SNPN connected to the base station.
  • the operation performed by the processor 701 further includes: sending the network identifier of the SNPN where the terminal is currently located to the base station, so that the base station will send the SNPN network identifier corresponding to the SNPN network identifier to support the IMS emergency service.
  • the IMS emergency service request sent by the terminal working in the SNPN mode is sent to the SNPN corresponding to the SNPN network identifier.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 701 and various circuits of the memory represented by the memory 702 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 can store data used by the processor 701 when performing operations.
  • the processes disclosed in the embodiments of the present disclosure may be applied to the processor 701 or implemented by the processor 701.
  • each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software.
  • the processor 701 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or execute the The disclosed methods, steps and logic block diagrams.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present disclosure may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 701 is configured to read computer instructions in the memory 702 and execute functions implemented on the terminal side in the process shown in FIG. 2.
  • the foregoing terminal provided by the embodiment of the present invention can implement all the method steps implemented in the foregoing method embodiment, and can achieve the same technical effect, and it will not be described in this embodiment as being the same as the method embodiment. The part and beneficial effects of this will be described in detail.
  • the embodiments of the present disclosure also provide a base station, which can implement the functions of the base station side in the foregoing embodiments.
  • Fig. 8 exemplarily shows a schematic structural diagram of a base station in an embodiment of the present disclosure.
  • the base station may include: a processor 801, a memory 802, a transceiver 803, and a bus interface 804.
  • the memory 802 may store computer instructions used by the processor 801 when performing operations.
  • the transceiver 803 is used to receive and send data under the control of the processor 801.
  • the processor 801 is used to read computer instructions stored in the memory 802, is responsible for managing the bus architecture and general processing, and performs the following operations:
  • Sending system information the system information including first indication information used to indicate whether the SNPN supports IMS emergency services and second indication information used to indicate whether the PLMN supports IMS emergency services;
  • the IMS emergency service request After receiving the IMS emergency service request sent by the terminal working in SNPN mode, the IMS emergency service request is sent to the SNPN supporting IMS emergency service; wherein, the IMS emergency service request is the terminal working in SNPN mode Sent according to the first instruction information.
  • the operation performed by the processor 801 further includes: after receiving an IMS emergency service request sent by a terminal working in PLMN mode, sending the IMS emergency service request to a PLMN supporting IMS emergency service; wherein, the The IMS emergency service request is sent by the terminal working in the PLMN mode according to the second indication information.
  • the first indication information includes indication information of N SNPNs and indication information corresponding to the N SNPNs and used to indicate whether the SNPN supports IMS emergency services, where N is equal to that of the base station connection.
  • the number of SNPNs, N is an integer greater than or equal to 1; or, the first indication information includes an indication information for indicating whether there is an SNPN supporting IMS emergency service in the SNPN connected to the base station.
  • sending the IMS emergency service request to the SNPN supporting the IMS emergency service includes:
  • the base station After the base station receives the IMS emergency service request sent by the terminal working in SNPN mode, according to the SNPN network identifier sent to the base station by the terminal working in SNPN mode, the SNPN corresponding to the SNPN network identifier supports the IMS emergency service In the case of sending the IMS emergency service request to the SNPN corresponding to the SNPN network identity; or, when the base station receives the IMS emergency service request sent by the terminal working in the SNPN mode, connects to the base station Select one of the SNPNs that support the IMS emergency service, and send the IMS emergency service request to the selected SNPN.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 801 and various circuits of the memory represented by the memory 802 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 can store data used by the processor 801 when performing operations.
  • the process disclosed in the embodiments of the present disclosure may be applied to the processor 801 or implemented by the processor 801.
  • each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 801 or instructions in the form of software.
  • the processor 801 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the The disclosed methods, steps and logic block diagrams.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present disclosure may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 801 is configured to read computer instructions in the memory 802 and execute the functions implemented on the base station side in the flow shown in FIG. 2.
  • the embodiments of the present disclosure also provide a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make the computer execute the method executed by the terminal in the above-mentioned embodiment.
  • the embodiments of the present disclosure also provide a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make the computer execute the method executed by the base station in the above-mentioned embodiment.
  • the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

本公开实施例提供了一种IMS紧急服务状态指示方法及装置。本公开实施例中，工作于SNPN模式的终端接收与SNPN和PLMN连接的基站发送的系统信息，所述系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；所述工作于SNPN模式的终端根据所述第一指示信息，确定是否允许在所述SNPN上发起IMS紧急服务。本公开实施例将SNPN和PLMN是否支持IMS紧急服务进行区别指示，使工作于SNPN模式的终端确定是否允许在所述SNPN发起IMS紧急服务。

Description

一种IMS紧急服务状态指示方法及装置
相关申请的交叉引用
本申请要求在2020年01月19日提交中国专利局、申请号为202010061871.X、申请名称为“一种IMS紧急服务状态指示方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及无线通信技术领域，尤其涉及一种IP多媒体子系统(IP Multimedia Subsystem，IMS)紧急服务状态指示方法及装置。
背景技术
5G R16版本中引入一种新型的网络-非公共网络(Non-public network，简称NPN)。NPN可以通过多种方式部署，既可以独立于已经存在的5G独立非公共网络(Stand-alone non-public network，SNPN)部署，也可以通过共享的方式在5G公网整合非公共网络(Public network integrated NPN，PNI-NPN)上部署。
接入网共享的服务小区，其可以同时连接到多个运营商的公共陆地移动网(Public land mobile network，PLMN)或者SNPN，不同PLMN或SNPN的相关信息在小区广播的同一套系统信息中指示，对于IMS紧急服务来说，终端在正常注册状态下，可以通过非接入层(Non-access stratum，NAS)信令获得当前PLMN对IMS紧急服务的支持状态。对于处于受限状态驻留在当前小区的终端，鉴于其与核心网之间没有NAS信令交互，终端无法从NAS层面获得PLMN对IMS紧急服务的支持状态。
因此，如何使工作于SNPN模式的终端获得SNPN对IMS紧急服务的支持状态，是目前亟需解决的问题。
发明内容
本公开实施例提供一种IMS紧急服务状态指示方法及装置，用以实现向终端指示IMS紧急服务状态。
第一方面，本公开实施例提供一种IMS紧急服务状态指示方法，包括：
工作于SNPN模式的终端接收与SNPN和PLMN连接的基站发送的系统信息，系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
工作于SNPN模式的终端根据第一指示信息，确定是否允许在所述SNPN上发起IMS紧急服务。
可选的，接收到基站发送的系统信息的终端还包括：工作于PLMN模式的终端；所述方法还包括：
工作于PLMN模式的终端根据第二指示信息，确定是否允许在PLMN上发起IMS紧急服务。
可选的，第一指示信息包括N个SNPN的指示信息以及与N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于基站连接的SNPN的数量，N为大于或等于1的整数。
可选的，第一指示信息包括一个用于指示基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
可选的，IMS紧急服务状态指示方法，还包括：
工作于SNPN模式的终端将该终端当前所在SNPN的网络标识发送给基站，使得基站在SNPN网络标识对应的SNPN网络支持IMS紧急服务的情况下将工作于SNPN模式的终端发送的IMS紧急服务请求发送到与所述SNPN网络标识对应SNPN。
第二方面，本公开实施例提供一种IMS紧急服务状态指示方法，包括：
与SNPN和PLMN连接的基站发送系统信息，系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将IMS紧急服务请求发送到支持IMS紧急服务的SNPN；其中，IMS紧急服务请求是工作于SNPN模式的终端根据所述第一指示信息发送的。
可选的，IMS紧急服务状态指示方法还包括：
基站接收到工作于PLMN模式的终端发送的IMS紧急服务请求后，将IMS紧急服务请求发送到支持IMS紧急服务的PLMN；其中，IMS紧急服务请求是工作于PLMN模式的终端根据第二指示信息发送的。
可选的，第一指示信息包括N个SNPN的指示信息以及与N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于基站连接的SNPN的数量，N为大于或等于1的整数。
可选的，第一指示信息包括一个用于指示基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
可选的，当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将IMS紧急服务请求发送到支持IMS紧急服务的SNPN，包括：
当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，根据工作于SNPN模式的终端发送给基站的SNPN网络标识，在SNPN网络标识对应的SNPN支持IMS紧急服务的情况下，将IMS紧急服务请求发送到与SNPN网络标识对应的SNPN；或者，当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，从基站连接的支持IMS紧急服务的SNPN中选择一个，将IMS紧急服务请求发送到选择的SNPN。
第三方面，本公开实施例提供一种终端，包括：
接收模块，用于接收与SNPN和PLMN连接的基站发送的系统信息，系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
处理模块，用于当终端为工作于SNPN模式的终端时，根据第一指示信息确定是否允许在所述SNPN上发起IMS紧急服务；当终端为工作于PLMN模式的终端时，根据第二指示信息确定是否允许在PLMN上发起IMS紧急服 务。
第四方面，本公开实施例提供一种基站，与SNPN和PLMN连接，包括：
发送模块，用于发送系统信息，系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
接收模块，用于接收到工作于SNPN模式的终端发送的IMS紧急服务请求；其中，IMS紧急服务请求是工作于SNPN模式的终端根据第一指示信息发送的；
处理模块，用于将IMS紧急服务请求发送到支持IMS紧急服务的SNPN。
第五方面，本公开实施例提供一种终端，包括：处理器、存储器、收发机；
收发机，在处理器的控制下进行数据的接收和发送；
存储器，存储计算机指令；
处理器，用于读取计算机指令，执行以下操作：
接收与SNPN和PLMN连接的基站发送的系统信息，系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
根据第一指示信息确定是否允许在所述SNPN上发起IMS紧急服务。
可选的，第一指示信息包括N个SNPN的指示信息以及与N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于基站连接的SNPN的数量，N为大于或等于1的整数。
可选的，第一指示信息包括一个用于指示基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
可选的，所述操作还包括：
将终端当前所在SNPN的网络标识发送给基站，使得基站在SNPN网络标识对应的SNPN网络支持IMS紧急服务的情况下将工作于SNPN模式的终端发送的IMS紧急服务请求发送到与所述SNPN网络标识对应SNPN。
第六方面，本公开实施例提供一种基站，包括：处理器、存储器、收发机；
收发机，在处理器的控制下进行数据的接收和发送；
存储器，存储计算机指令；
处理器，用于读取计算机指令，执行以下操作：
发送系统信息，系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
当接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将IMS紧急服务请求发送到支持IMS紧急服务的SNPN；其中，IMS紧急服务请求是工作于SNPN模式的终端根据第一指示信息发送的。
可选的，所述操作还包括：
当接收到工作于PLMN模式的终端发送的IMS紧急服务请求后，将IMS紧急服务请求发送到支持IMS紧急服务的PLMN；其中，IMS紧急服务请求是工作于PLMN模式的终端根据第二指示信息发送的。
可选的，第一指示信息包括N个SNPN的指示信息以及与N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于基站连接的SNPN的数量，N为大于或等于1的整数。
可选的，第一指示信息包括一个用于指示基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
可选的，当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将IMS紧急服务请求发送到支持IMS紧急服务的SNPN，包括：
当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，根据工作于SNPN模式的终端发送给基站的SNPN网络标识，在SNPN网络标识对应的SNPN支持IMS紧急服务的情况下，将IMS紧急服务请求发送到与SNPN网络标识对应的SNPN；或者，当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，从基站连接的支持IMS紧急服务的SNPN中选择一个，将IMS紧急服务请求发送到选择的SNPN。
第七方面，本公开实施例提供一种存储介质，计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使计算机执行第一方面所述的方法。
第八方面，本公开实施例提供一种存储介质，计算机可读存储介质存储有计算机可执行指令，计算机可执行指令用于使计算机执行第二方面的方法。
本公开的上述实施例中，由于与SNPN和PLMN连接的基站发送的系统信息中包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息，从而将SNPN和PLMN是否支持IMS紧急服务进行区别指示，使得工作于SNPN模式的终端可以获得SNPN对IMS紧急服务的支持情况，进而确定是否允许在所述SNPN发起IMS紧急服务。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1示例性示出了本公开实施例提供的应用场景示意图；
图2示例性示出了本公开实施例提供的IMS紧急服务状态指示方法流程图；
图3示例性示出了本公开实施例提供的工作于SNPN模式的终端发起IMS紧急服务的示意图；
图4示例性示出了本公开实施例提供的另一种工作于SNPN模式的终端发起IMS紧急服务的示意图；
图5示例性示出了本公开实施例提供的一种终端的结构示意图；
图6示例性示出了本公开实施例提供的一种基站的结构示意图；
图7示例性示出了本公开实施例提供的一种终端的结构示意图；
图8示例性示出了本公开实施例提供的一种基站的结构示意图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅仅是本公开一部份实施例，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做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
本公开实施例中的“终端”，又称为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
本公开实施例中的“基站”，可以是RAN节点或基站。RAN是网络中将终端接入到无线网络的部分。RAN节点(或设备)为无线接入网中的节点(或设备)，又可以称为基站。目前，一些RAN节点的举例为：gNB、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，Wifi)接入点 (access point，AP)等。另外，在一种网络结构中，RAN可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点。
应当理解，本公开实施例中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，例如能够根据本公开实施例图示或描述中给出那些以外的顺序实施。
图1示例性示出了本公开实施例提供的应用场景示意图。如图所示，SNPN和PLMN连接同一基站，该基站可称为共享基站。基站所连接的SNPN的数量可以一个或多个，基站所连接的PLMN的数量可以为一个或多个，不同的PLMN和SNPN对应不同的网络标识(比如：网络ID号)。PLMN由政府或政府批准的经营者(比如移动运营商、电信运营商、联通运营商等)为公众提供陆地移动通信业务目的而建立和经营的网络；SNPN不依赖于PLMN网络，由SNPN运营商运营，PLMN和SNPN不支持网络间切换。
在普通PLMN之间共享基站的场景下，可以指示是否支持IMS紧急服务，只要连接到基站的任意一个PLMN支持IMS紧急服务，服务小区即在系统信息中指示支持IMS紧急服务。普通模式(包括PLMN模式)的终端在受限状态下发起IMS紧急服务时，将被基站发送到任意一个支持IMS紧急服务的PLMN即可成功的进行IMS紧急服务。但对于支持SNPN模式的终端，工作于SNPN模式时，只能使用SNPN网络的服务，SNPN模式的终端在服务小区中处于受限状态，其只能通过SNPN进行IMS紧急服务，无法通过PLMN进行IMS紧急服务。
对于共享基站同时连接到SNPN和PLMN的场景，如果连接的PLMN支持IMS紧急服务，而SNPN不支持紧急服务，则PLMN模式的终端允许发起IMS紧急服务，SNPN模式的终端不允许发起IMS紧急服务。
为解决上述问题，本公开实施例提出了一种IMS紧急服务状态指示方法。本公开中，通过单独指示基站连接的SNPN对IMS紧急服务支持状态的方法，解决了在基站共享场景下，SNPN模式下的终端在服务小区上处于受限状态时， 无法区分当前小区连接到的SNPN网络是否支持IMS紧急服务，因而无法保证在SNPN网络上进行IMS紧急服务的问题。
图2示例性示出了本公开实施例提供的IMS紧急服务状态指示方法流程图。该流程包括：
S201：连接SNPN和PLMN的基站发送服务小区的系统信息，系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息。
该步骤中，SNPN的数量为一个或多个，PLMN的数量也可以为一个或多个。该基站发送的系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息，使得在系统信息中可区别指示PLMN对IMS紧急服务支持状态和SNPN对IMS紧急服务支持状态。
S202：该基站覆盖范围内的终端接收该系统信息，并根据该系统信息确定是否允许在所述SNPN或PLMN上发起IMS紧急服务请求。
该基站覆盖范围内工作于SNPN模式的终端接收基站发送的系统信息，根据系统信息中的第一指示信息，确定是否允许在所述SNPN上发起IMS紧急服务。
当工作于SNPN模式的终端需要发起IMS紧急服务请求时，若根据接收到的第一指示信息确定该终端的服务基站所连接的SNPN支持IMS紧急服务，则向服务基站发送IMS紧急服务请求；若根据接收到的第一指示信息确定该终端的服务基站所连接的SNPN不支持IMS紧急服务，则放弃发起IMS紧急服务请求。
基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将该请求发送到支持IMS紧急服务的SNPN。
该基站覆盖范围内工作于PLMN模式的终端接收基站发送的系统信息，根据系统信息中的第二指示信息，确定是否允许在PLMN上发起IMS紧急服务。
当工作于PLMN模式的终端需要发起IMS紧急服务请求时，若根据接收到的第二指示信息确定该终端的服务基站所连接的PLMN支持IMS紧急服务，则向服务基站发送IMS紧急服务请求；若根据接收到的第二指示信息确定该终端的服务基站所连接的PLMN不支持IMS紧急服务，则放弃发起IMS紧急服务请求。
基站接收到工作于PLMN模式的终端发送的IMS紧急服务请求后，将该请求发送到支持IMS紧急服务的PLMN。
本公开的一些实施例中，第一指示信息可以包括N个SNPN的指示信息以及与N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于基站连接的SNPN的数量，N为大于或等于1的整数。其中，SNPN的指示信息可以是SNPN的网络标识或者其他可以区分不同SNPN的信息，比如SNPN的索引。
表1示例性示出了SIB1中的第一指示信息的内容，其中，针对基站连接的每个SNPN包括SNPN ID和信元“ims-EmergencySupport-snpn”，其中，SNPN ID为SNPN的网络标识，“ims-EmergencySupport-snpn”的取值用于表示对应的SNPN是否支持IMS紧急服务。
表1
Figure PCTCN2020134850-appb-000001
可选地，为了降低资源开销，信元“ims-EmergencySupport-snpn”可以是1个比特的信息，当该信元取值为1时表示对应的SNPN支持IMS紧急服务，当该信元取值为0时表示对应的SNPN不支持IMS紧急服务，反之亦然。
在另一些实施例中，第一指示信息可不包SNPN的指示信息(如不包含SNPN ID)，而仅包括信元“ims-EmergencySupport-snpn”。基站和终端之间可 预先约定或预配置该基站所连接的SNPN的顺序，基站在系统信息中可按照该顺序指示出每个SNPN是否支持IMS紧急服务(比如第一指示信息包括N个信元“ims-EmergencySupport-snpn”，每个信元“ims-EmergencySupport-snpn”对应一个SNPN，用于指示对应的SNPN是否支持IMS紧急服务)，终端可根据接收到的第一指示信息以及SNPN的顺序，确定对应SNPN是否支持IMS紧急服务。
当工作于SNPN模式的终端需要发起IMS紧急服务请求时，若根据接收到的系统信息确定服务基站所连接的SNPN支持IMS紧急服务，则向该服务基站发送IMS紧急服务请求。该请求中可以携带SNPN的指示信息(比如SNPN的顺序索引或网络标识)，也可以不携带SNPN的指示信息。如果该请求中携带SNPN的指示信息，则基站根据该SNPN的指示信息，将该请求发送到对应的SNPN；若该请求中未携带SNPN的指示信息，则基站可根据和终端之间预先约定或预配置的该基站所连接的SNPN的顺序，将该请求发送到对应的SNPN。
本公开的另一些实施例中，第一指示信息包括一个用于指示基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息，也即第一指示信息的数量为一个，该第一指示信息用于指示基站连接的SNPN中是否存在支持IMS紧急服务的SNPN。与上一实施例相比，该实施例中第一指示信息占用的网络资源开销较少。
可选的，第一指示信息可以是1个比特的信息，当该指示信息取值为1时表示基站连接的SNPN中存在支持IMS紧急服务的SNPN，当该指示信息取值为0时表示基站连接的SNPN中不存在支持IMS紧急服务的SNPN，反之亦然。
根据以上第一指示信息的发送方法，基站可预先配置或设定与其连接的SNPN对IMS紧急服务的支持状态，若与基站连接的SNPN中至少有一个SNPN支持IMS紧急服务，第一指示信息的值设置为1，若与基站连接的SNPN中均不支持IMS紧急服务，第一指示信息的值设置为0。终端可根据接收到 的第一指示信息的值，确定SNPN是否支持IMS紧急服务，进而确定是否在SNPN上发起IMS紧急服务请求。
举例来说，可以在系统信息(SIB1)中定义信元“ims-EmergencySupport”和信元“ims-EmergencySupport-snpn”，其中，“ims-EmergencySupport”用以指示基站所连接的PLMN中是否存在支持IMS紧急服务的PLMN，“ims-EmergencySupport-snpn”用于指示基站所连接的SNPN中是否存在支持IMS紧急服务的SNPN。当服务小区连接到一个或多个PLMN支持IMS紧急服务时，“ims-EmergencySupport”设置为TRUE，当服务小区连接到一个或多个SNPN支持IMS紧急服务时，“ims-EmergencySupport-snpn”设置为TRUE。
在该实现方式中，当工作于SNPN模式的终端需要发起IMS紧急服务请求时，若根据接收到的系统信息中第一指示信息的值确定服务基站所连接的SNPN支持IMS紧急服务，则向该服务基站发送IMS紧急服务请求。基站可从其连接的且支持IMS紧急服务的SNPN中选择一个，选择标准可根据SNPN的稳定性或终端接收的SNPN信号强弱，并将该请求发送到选择出的SNPN。
举例来说，基站预先配置与其连接的SNPN1、SNPN2、SNPN3中SNPN1、SNPN2支持IMS紧急服务，则系统消息中第一指示信息的取值为1，工作于SNPN模式的终端根据接收到的第一指示信息的值在SNPN上发起IMS紧急服务请求，SNPN1信号较强且较为稳定，基站将该请求发送到支持IMS紧急服务的SNPN1。
工作于PLMN模式的终端在受限状态下，需要发起IMS紧急服务时，根据接收的SIB1中的信元“ims-EmergencySupport”确定是否能够发起IMS紧急服务，若能够发起IMS紧急服务，则向基站发送IMS紧急服务请求，基站将该IMS紧急服务请求发送到PLMN。
本公开的上述实施例中，对于处于受限状态的SNPN模式的终端，根据第一指示信息确定是否允许在所述SNPN上发起IMS紧急服务，解决了SNPN模式的终端发起的IMS紧急服务被基站错误发送到支持IMS紧急服务的PLMN。
下面以两个具体场景为例对本公开的具体实现过程进行说明。
场景一
图3为工作于SNPN模式的终端发起IMS紧急服务的过程。其中，基站连接PLMN和SNPN，终端为工作于SNPN模式下的终端并在服务小区处于受限状态下。如图所示，该流程可包括如下几个步骤：
301：基站广播SIB1，其中携带信元“ims-EmergencySupport”和信元“ims-EmergencySupport-snpn”。
本场景下，信元“ims-EmergencySupport-snpn”的取值为“TRUE”，表示该基站所连接的SNPN支持IMS紧急服务。
工作于SNPN模式的终端接收并存储SIB1中指示SNPN是否支持IMS紧急服务的信元“ims-EmergencySupport-snpn”。
302：终端需要发起紧急服务时，检查信元“ims-EmergencySupport-snpn”的取值为“TRUE”，确定允许在SNPN上发起IMS紧急服务。
303：终端发起IMS紧急服务过程。
在该过程中，终端向基站发送无线资源控制(Radio Resource Control，RRC)连接建立请求，该RRC连接建立请求中的信元“Establishmentcause”被设置为“emergency”，表示发起的是IMS紧急服务请求。基站在接收到RRC连接建立请求后，与该终端建立RRC连接。终端与基站之间的RRC连接建立完成后，终端向基站发送MSG5消息(RRC建立或重建完成消息)，其中携带SNPN的网络标识，若该网络标识与基站连接的支持IMS紧急服务的SNPN的网络标识相同，则基站根据终端在MSG5中上报的网络标识将IMS紧急服务请求发送到对应的SNPN，若该网络标识与基站连接的支持IMS紧急服务的SNPN的网络标识不同，则基站将IMS紧急服务请求发送到与基站连接的SNPN信号较强或较为稳定的支持IMS紧急服务的SNPN。
场景二
图4为工作于SNPN模式的终端发起IMS紧急服务的另一过程。其中，基站连接PLMN和SNPN，终端为工作于SNPN模式下的终端并在服务小区 处于受限状态下。如图所示，该流程可包括如下几个步骤：
S401：基站广播SIB1，其中携带该基站连接的每个SNPN的指示信息和信元“ims-EmergencySupport-snpn”。
本场景下，SNPN的指示信息可以是SNPN的网络标识或者其他可以区分不同SNPN的信息，比如SNPN的索引，“ims-EmergencySupport-snpn”的取值用于表示对应的SNPN是否支持IMS紧急服务。可选的，本实施例中SNPN的指示信息为“SNPN ID 1 ims-EmergencySupport-snpn”，“SNPN ID 2 ims-EmergencySupport-snpn”等。
S402：终端需要发起紧急服务时，检查该终端所在服务小区的每个SNPN的指示信息对应的信元“ims-EmergencySupport-snpn”的取值，若有一个取值为“TRUE”，确定允许该终端在SNPN上发起IMS紧急服务。
S403：终端发起IMS紧急服务过程。
该步骤与步骤303类似，不同的是，终端与基站之间的RRC连接建立完成后，终端向基站发送MSG5消息(RRC建立或重建完成消息)，其中携带支持IMS紧急服务的SNPN的网络标识，若该网络标识对应的SNPN支持IMS紧急服务，则基站将终端发送的IMS紧急服务请求发送到对应的SNPN，若该网络标识对应的SNPN不支持IMS紧急服务，则基站将终端发送的IMS紧急服务请求发送到SNPN信号较强或较为稳定的支持IMS紧急服务的SNPN。
本公开的实施例中，基站发送的系统消息可区别指示其连接的PLMN对IMS紧急服务的支持状态和SNPN对IMS紧急服务的支持状态，使得SNPN模式的终端在受限状态下能够判断当前服务小区连接的SNPN是否支持IMS紧急服务，PLMN模式的终端在受限状态下能够判断当前服务小区连接的PLMN是否支持IMS紧急服务。并且，基站能够根据终端上报的网络标识(PLMN ID或SNPN ID)将不同模式终端的IMS紧急服务发送到PLMN或SNPN。
基于相同的技术构思，本公开实施例提供了一种终端，该终端可实现上述实施例中终端侧的方法。
参见图5，该终端包括：接收模块501、处理模块502和发送模块503。
接收模块501，用于接收与SNPN和PLMN连接的基站发送的系统信息，其中，系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
处理模块502，用于当终端为工作于SNPN模式的终端时，根据第一指示信息确定是否允许在所述SNPN上发起IMS紧急服务；当终端为工作于PLMN模式的终端时，根据第二指示信息确定是否允许在PLMN上发起IMS紧急服务；
发送模块503，用于根据第一指示信息向基站发送IMS紧急服务请求，IMS紧急服务请求被基站发送到支持IMS紧急服务的SNPN。
具体的，工作于SNPN模式的终端将该终端当前所在SNPN的网络标识发送给基站，使得基站在SNPN网络标识对应的SNPN网络支持IMS紧急服务的情况下将工作于SNPN模式的终端发送的IMS紧急服务请求发送到与所述SNPN网络标识对应SNPN。
可选的，发送模块503，还用于根据第二指示信息向基站发送IMS紧急服务请求，IMS紧急服务请求被基站发送到支持IMS紧急服务的PLMN。
可选的，该终端接收的系统消息中，第一指示信息包括N个SNPN的指示信息以及与N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于基站连接的SNPN的数量，N为大于或等于1的整数；或者，第一指示信息包括一个用于指示基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
上述终端中各模块的功能可参见前述实施例中网络设备实现的功能的描述，在此不再重复。
基于相同的技术构思，本公开实施例还提供了一种基站，该终端可实现上述实施例中基站侧的方法。
参见图6，该基站包括：发送模块601、接收模块602和处理模块603。
发送模块601，用于发送系统信息，其中，系统信息包括用于指示SNPN 是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
接收模块602，用于接收到工作于SNPN模式的终端发送的IMS紧急服务请求；其中，IMS紧急服务请求是工作于SNPN模式的终端根据第一指示信息发送的；
处理模块603，用于将工作于SNPN模式的终端发送的IMS紧急服务请求发送到SNPN。
可选的，接收模块602，还用于接收到工作于PLMN模式的终端发送的IMS紧急服务请求；其中，IMS紧急服务请求是工作于PLMN模式的终端根据第二指示信息发送的。
可选的，处理模块603，还用于将工作于PLMN模式的终端发送的IMS紧急服务请求发送到PLMN。
可选的，第一指示信息包括N个SNPN的指示信息以及与N个SNPN分别对应的用于指示所述是否支持IMS紧急服务的指示信息，其中N等于基站连接的SNPN的数量，N为大于或等于1的整数；或者，第一指示信息包括一个用于指示基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
可选的，接收模块602接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将IMS紧急服务请求发送到支持IMS紧急服务的SNPN，包括：
当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，根据工作于SNPN模式的终端发送给基站的SNPN网络标识，在SNPN网络标识对应的SNPN支持IMS紧急服务的情况下，将IMS紧急服务请求发送到与SNPN网络标识对应的SNPN；或者，当基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，从基站连接的支持IMS紧急服务的SNPN中选择一个，将IMS紧急服务请求发送到选择的SNPN。
上述终端中各模块的功能可参见前述实施例中网络设备实现的功能的描述，在此不再重复。
基于相同的技术构思，本公开实施例还提供了一种终端，该终端可实现上述实施例中终端侧的功能。
图7示例性示出了本公开实施例中的终端的结构示意图。如图所示，该终端可包括：处理器701、存储器702、收发机703以及总线接口704。
存储器702可以存储处理器701在执行操作时所使用的计算机指令。收发机703用于在处理器701的控制下接收和发送数据。处理器701用于读取存储器702存储的计算机指令，负责管理总线架构和通常的处理，执行以下操作：
接收与SNPN和PLMN连接的基站发送的系统信息，所述系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
根据所述第一指示信息确定是否允许在所述SNPN上发起IMS紧急服务。
可选的，所述第一指示信息包括N个SNPN的指示信息以及与所述N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于所述基站连接的SNPN的数量，N为大于或等于1的整数；或者，所述第一指示信息包括一个用于指示所述基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
可选的，处理器701执行的操作，还包括：将终端当前所在SNPN的网络标识发送给所述基站，使得所述基站在所述SNPN网络标识对应的SNPN网络支持IMS紧急服务的情况下将所述工作于SNPN模式的终端发送的IMS紧急服务请求发送到与所述SNPN网络标识对应SNPN。
总线架构可以包括任意数量的互联的总线和桥，具体由处理器701代表的一个或多个处理器和存储器702代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。处理器701负责管理总线架构和通常的处理，存储器702可以存储处理器701在执行操作时所使用的数据。
本公开实施例揭示的流程，可以应用于处理器701中，或者由处理器701实现。在实现过程中，信号处理流程的各步骤可以通过处理器701中的硬件的集成逻辑电路或者软件形式的指令完成。处理器701可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器702，处理器701读取存储器702中的信息，结合其硬件完成信号处理流程的步骤。
具体地，处理器701，用于读取存储器702中的计算机指令并执行图2所示的流程中终端侧实现的功能。
在此需要说明的是，本发明实施例提供的上述终端，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
基于相同的技术构思，本公开实施例还提供了一种基站，该基站可实现上述实施例中基站侧的功能。
图8示例性示出了本公开实施例中的基站的结构示意图。如图所示，该基站可包括：处理器801、存储器802、收发机803以及总线接口804。
存储器802可以存储处理器801在执行操作时所使用的计算机指令。收发机803用于在处理器801的控制下接收和发送数据。处理器801用于读取存储器802存储的计算机指令，负责管理总线架构和通常的处理，执行以下操作：
发送系统信息，所述系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
当接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将所述IMS紧急服务请求发送到支持IMS紧急服务的SNPN；其中，所述IMS紧急服务请求是所述工作于SNPN模式的终端根据所述第一指示信息发送的。
可选的，处理器801执行的操作还包括：当接收到工作于PLMN模式的终端发送的IMS紧急服务请求后，将所述IMS紧急服务请求发送到支持IMS紧急服务的PLMN；其中，所述IMS紧急服务请求是所述工作于PLMN模式的终端根据所述第二指示信息发送的。
可选的，所述第一指示信息包括N个SNPN的指示信息以及与所述N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于所述基站连接的SNPN的数量，N为大于或等于1的整数；或者，所述第一指示信息包括一个用于指示所述基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
可选的，当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将所述IMS紧急服务请求发送到支持IMS紧急服务的SNPN，包括：
当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，根据所述工作于SNPN模式的终端发送给基站的SNPN网络标识，在所述SNPN网络标识对应的SNPN支持IMS紧急服务的情况下，将所述IMS紧急服务请求发送到与所述SNPN网络标识对应的SNPN；或者，当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，从所述基站连接的支持IMS紧急服务的SNPN中选择一个，将所述IMS紧急服务请求发送到选择出的SNPN。
总线架构可以包括任意数量的互联的总线和桥，具体由处理器801代表的一个或多个处理器和存储器802代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。处理器801负责管理总线架构和通常的处理，存 储器802可以存储处理器801在执行操作时所使用的数据。
本公开实施例揭示的流程，可以应用于处理器801中，或者由处理器801实现。在实现过程中，信号处理流程的各步骤可以通过处理器801中的硬件的集成逻辑电路或者软件形式的指令完成。处理器801可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器802，处理器801读取存储器802中的信息，结合其硬件完成信号处理流程的步骤。
具体地，处理器801，用于读取存储器802中的计算机指令并执行图2所示的流程中基站侧实现的功能。
在此需要说明的是，本发明实施例提供的上述基站，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本公开实施例还提供了一种计算机可读存储介质，计算机可读存储介质存储有计算机可执行指令，计算机可执行指令用于使计算机执行上述实施例中终端所执行的方法。
本公开实施例还提供了一种计算机可读存储介质，计算机可读存储介质存储有计算机可执行指令，计算机可执行指令用于使计算机执行上述实施例中基站所执行的方法。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (23)

  1. 一种IP多媒体子系统IMS紧急服务状态指示方法，其特征在于，包括：
    工作于独立非公共网络SNPN模式的终端接收与SNPN和公共陆地移动网PLMN连接的基站发送的系统信息，所述系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
    所述工作于SNPN模式的终端根据所述第一指示信息，确定是否允许在所述SNPN上发起IMS紧急服务。
  2. 如权利要求1所述的方法，其特征在于，接收所述基站发送的所述系统信息的终端还包括：工作于PLMN模式的终端；
    所述方法还包括：
    所述工作于PLMN模式的终端根据所述第二指示信息，确定是否允许在PLMN上发起IMS紧急服务。
  3. 如权利要求1或2所述的方法，其特征在于，所述第一指示信息包括N个SNPN的指示信息以及与所述N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于所述基站连接的SNPN的数量，N为大于或等于1的整数。
  4. 如权利要求1或2所述的方法，其特征在于，所述第一指示信息包括一个用于指示所述基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
  5. 如权利要求1所述的方法，其特征在于，还包括：
    所述工作于SNPN模式的终端将所述终端当前所在SNPN的网络标识发送给所述基站，使得所述基站在所述SNPN网络标识对应的SNPN网络支持IMS紧急服务的情况下，将所述工作于SNPN模式的终端发送的IMS紧急服务请求发送到与所述SNPN网络标识对应的SNPN。
  6. 一种IP多媒体子系统IMS紧急服务状态指示方法，其特征在于，包括：
    与独立非公共网络SNPN和公共陆地移动网PLMN连接的基站发送系统信息，所述系统信息包括用于指示SNPN是否支持IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
    当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将所述IMS紧急服务请求发送到支持IMS紧急服务的SNPN；其中，所述IMS紧急服务请求是所述工作于SNPN模式的终端根据所述第一指示信息发送的。
  7. 如权利要求6所述的方法，其特征在于，还包括：
    所述基站接收到工作于PLMN模式的终端发送的IMS紧急服务请求后，将所述IMS紧急服务请求发送到支持IMS紧急服务的PLMN；其中，所述IMS紧急服务请求是所述工作于PLMN模式的终端根据所述第二指示信息发送的。
  8. 如权利要求6或7所述的方法，其特征在于，所述第一指示信息包括N个SNPN的指示信息以及与所述N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于所述基站连接的SNPN的数量，N为大于或等于1的整数。
  9. 如权利要求6或7所述的方法，其特征在于，所述第一指示信息包括一个用于指示所述基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
  10. 如权利要求6所述的方法，其特征在于，当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将所述IMS紧急服务请求发送到支持IMS紧急服务的SNPN，包括：
    当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，根据所述工作于SNPN模式的终端发送给基站的SNPN网络标识，在所述SNPN网络标识对应的SNPN支持IMS紧急服务的情况下，将所述IMS紧急服务请求发送到与所述SNPN网络标识对应的SNPN；或者
    当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后， 从所述基站连接的支持IMS紧急服务的SNPN中选择一个，将所述IMS紧急服务请求发送到选择的SNPN。
  11. 一种终端，其特征在于，包括：
    接收模块，用于接收与独立非公共网络SNPN和公共陆地移动网PLMN连接的基站发送的系统信息，所述系统信息包括用于指示SNPN是否支持IP多媒体子系统IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
    处理模块，用于当所述终端为工作于SNPN模式的终端时，根据所述第一指示信息确定是否允许在所述SNPN上发起IMS紧急服务；当所述终端为工作于PLMN模式的终端时，根据所述第二指示信息确定是否允许在所述PLMN上发起IMS紧急服务。
  12. 一种基站，与独立非公共网络SNPN和公共陆地移动网PLMN连接，其特征在于，包括：
    发送模块，用于发送系统信息，所述系统信息包括用于指示SNPN是否支持IP多媒体子系统IMS紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
    接收模块，用于接收到工作于SNPN模式的终端发送的IMS紧急服务请求；其中，所述IMS紧急服务请求是所述工作于SNPN模式的终端根据所述第一指示信息发送的；
    处理模块，用于将所述IMS紧急服务请求发送到支持IMS紧急服务的SNPN。
  13. 一种终端，其特征在于，包括：处理器、存储器、收发机；
    所述收发机，在处理器的控制下进行数据的接收和发送；
    所述存储器，存储计算机指令；
    所述处理器，用于读取所述计算机指令，执行以下操作：
    接收与独立非公共网络SNPN和公共陆地移动网PLMN连接的基站发送的系统信息，所述系统信息包括用于指示SNPN是否支持IP多媒体子系统IMS 紧急服务的第一指示信息和用于指示PLMN是否支持IMS紧急服务的第二指示信息；
    根据所述第一指示信息确定是否允许在所述SNPN上发起IMS紧急服务。
  14. 如权利要求13所述的终端，其特征在于，所述第一指示信息包括N个SNPN的指示信息以及与所述N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于所述基站连接的SNPN的数量，N为大于或等于1的整数。
  15. 如权利要求13所述的终端，其特征在于，所述第一指示信息包括一个用于指示所述基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
  16. 如权利要求13所述的终端，其特征在于，所述操作还包括：
    将终端当前所在SNPN的网络标识发送给所述基站，使得所述基站在所述SNPN网络标识对应的SNPN网络支持IMS紧急服务的情况下将所述工作于SNPN模式的终端发送的IMS紧急服务请求发送到与所述SNPN网络标识对应的SNPN。
  17. 一种基站，其特征在于，包括：处理器、存储器、收发机；
    所述收发机，在处理器的控制下进行数据的接收和发送；
    所述存储器，存储计算机指令；
    所述处理器，用于读取所述计算机指令，执行以下操作：
    发送系统信息，所述系统信息包括用于指示独立非公共网络SNPN是否支持IP多媒体子系统IMS紧急服务的第一指示信息和用于指示公共陆地移动网PLMN是否支持IMS紧急服务的第二指示信息；
    当接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将所述IMS紧急服务请求发送到支持IMS紧急服务的SNPN；其中，所述IMS紧急服务请求是所述工作于SNPN模式的终端根据所述第一指示信息发送的。
  18. 如权利要求17所述的基站，其特征在于，所述操作还包括：
    当接收到工作于PLMN模式的终端发送的IMS紧急服务请求后，将所述 IMS紧急服务请求发送到支持IMS紧急服务的PLMN；其中，所述IMS紧急服务请求是所述工作于PLMN模式的终端根据所述第二指示信息发送的。
  19. 如权利要求17所述的基站，其特征在于，所述第一指示信息包括N个SNPN的指示信息以及与所述N个SNPN分别对应的用于指示所述SNPN是否支持IMS紧急服务的指示信息，其中N等于所述基站连接的SNPN的数量，N为大于或等于1的整数。
  20. 如权利要求17所述的基站，其特征在于，所述第一指示信息包括一个用于指示所述基站连接的SNPN中是否存在支持IMS紧急服务的SNPN的指示信息。
  21. 如权利要求17所述的基站，其特征在于，当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，将所述IMS紧急服务请求发送到支持IMS紧急服务的SNPN，包括：
    当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，根据所述工作于SNPN模式的终端发送给基站的SNPN网络标识，在所述SNPN网络标识对应的SNPN支持IMS紧急服务的情况下，将所述IMS紧急服务请求发送到与所述SNPN网络标识对应的SNPN；或者
    当所述基站接收到工作于SNPN模式的终端发送的IMS紧急服务请求后，从所述基站连接的支持IMS紧急服务的SNPN中选择一个，将所述IMS紧急服务请求发送到选择的SNPN。
  22. 一种存储介质，其特征在于，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行如权利要求1-5中任一项所述的方法。
  23. 一种存储介质，其特征在于，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行如权利要求6-10中任一项所述的方法。
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