WO2019126938A1 - 释放终端上下文的通知方法、网络设备及计算机存储介质 - Google Patents

释放终端上下文的通知方法、网络设备及计算机存储介质 Download PDF

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Publication number
WO2019126938A1
WO2019126938A1 PCT/CN2017/118292 CN2017118292W WO2019126938A1 WO 2019126938 A1 WO2019126938 A1 WO 2019126938A1 CN 2017118292 W CN2017118292 W CN 2017118292W WO 2019126938 A1 WO2019126938 A1 WO 2019126938A1
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WIPO (PCT)
Prior art keywords
network node
communication system
terminal
network
notification
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PCT/CN2017/118292
Other languages
English (en)
French (fr)
Inventor
刘建华
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP17936422.9A priority Critical patent/EP3726881B1/en
Priority to JP2020532961A priority patent/JP2021514553A/ja
Priority to KR1020207020320A priority patent/KR20200103030A/ko
Priority to CN201780097926.9A priority patent/CN111567083B/zh
Priority to AU2017444350A priority patent/AU2017444350A1/en
Priority to PCT/CN2017/118292 priority patent/WO2019126938A1/zh
Publication of WO2019126938A1 publication Critical patent/WO2019126938A1/zh
Priority to US16/900,301 priority patent/US20200314703A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • 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
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • 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
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • H04W36/362—Conditional handover
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of information processing technologies, and in particular, to a notification method for releasing a terminal context, a network node, and a computer storage medium.
  • the terminal may attempt to access the second communication system to perform the service. For terminals of certain capabilities, communication can only be performed in one communication system at the same time.
  • the terminal accesses the second communication system, the first communication system network node does not know that the terminal is no longer in the first communication system, thereby causing the terminal and the network to be asymmetric about the state information of the terminal.
  • an embodiment of the present invention provides a notification method for releasing a terminal context, a network node, and a computer storage medium.
  • An embodiment of the present invention provides a method for releasing a notification of a terminal context, which is applied to a first network node, where the method includes:
  • the first network node Sending, by the second network node, or the second communication system, the first notification;
  • the first notification is used to notify the second communication system, or the second network node releases the context of the terminal; the terminal accesses the second communication system or accesses the second network.
  • the context of the terminal is saved in the second communication system or the second network node.
  • An embodiment of the present invention provides a method for releasing a notification of a terminal context, which is applied to a second network node, where the method includes:
  • the second network node when the terminal is converted to access to the first communication system by the access second communication system, or when the terminal is converted to access the first network node by the access second network node Receiving a first notification sent by the first communication system or the first network node;
  • the first notification is used to notify at least the context of releasing the terminal
  • the terminal accesses the second communication system or accesses the second network node
  • the terminal has a connection with the second communication system or the second network node, and the second communication system or the second network node
  • the context of the terminal is saved.
  • An embodiment of the present invention provides a first network node, including:
  • a first processing unit when the terminal is converted to access to the first network node by the access second network node, or when the terminal is converted to access the first communication system by accessing the second communication system, the control Transmitting, by the communication unit, the first notification to the second network node or the second communication system;
  • the first communication unit sends a first notification to the second network node or the second communication system
  • the first notification is used to notify the second communication system, or the second network node releases the context of the terminal; the terminal accesses the second communication system or accesses the second network.
  • the context of the terminal is saved in the second communication system or the second network node.
  • An embodiment of the present invention provides a second network node, including:
  • the second communication unit receives the first notification sent by the first communication system or the first network node;
  • the second communication unit receives the first notification sent by the first communication system or the first network node;
  • the first notification is used to notify at least the context of releasing the terminal
  • the terminal accesses the second communication system or accesses the second network node
  • the terminal has a connection with the second communication system or the second network node, and the second communication system or the second network node
  • the context of the terminal is saved.
  • a network node provided by an embodiment of the present invention includes: a processor and a memory for storing a computer program capable of running on the processor,
  • processor is configured to perform the steps of the foregoing method when the computer program is run.
  • a computer storage medium is provided by the embodiment of the present invention.
  • the computer storage medium stores computer executable instructions, and the foregoing method steps are implemented when the computer executable instructions are executed.
  • the terminal when the terminal switches from one network node or the communication system to another network node or the communication system, the first notification is sent to the network node or the communication system originally accessed by the terminal, so that the original The accessed network node or communication system releases the context of the connection or release of the terminal.
  • the originally accessed network or node when the terminal has accessed other systems, the originally accessed network or node also maintains the problem of the context of the terminal, so that the network node or system after the above solution achieves the effect of symmetrical state information of the terminal.
  • FIG. 1 is a schematic flowchart 1 of a method for releasing a notification of a terminal context according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart 2 of a method for releasing a notification of a terminal context according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a first network node according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a second network node according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a hardware architecture according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for releasing a terminal context notification, which is applied to a first network node, where the method includes: when a terminal is converted into accessing a first network node by accessing a second network node, or When the terminal is converted into accessing the first communication system by the second communication system, the first network node sends a first notification to the second communication node or the second communication system;
  • the first notification is used to notify at least the second communication system, or the second network node releases the context of the terminal;
  • the terminal accesses the second communication system or accesses the second network node
  • the terminal has a connection with the second communication system or the second network node, and the second communication system or the second network node
  • the context of the terminal is saved.
  • the first network node is located in the first communication system.
  • the second network node may be located in the first communication system or in another communication system, for example, may be located in the second communication system.
  • the embodiment of the present invention provides the following two processing scenarios:
  • the first network node When the terminal is converted to access the first network node by the access second network node, the first network node sends a first notification to the second network node; wherein the first notification is used at least for the notification
  • the second network node releases the context of the terminal; when the terminal accesses the second network node, the second network node saves the context of the terminal.
  • the terminal establishes a connection with the second network node when accessing the second network node.
  • the triggering condition of the terminal switching access may be that the terminal finds that the second network node that is currently providing the service cannot meet the requirement, and therefore, switches to the first network node that can meet the usage requirement.
  • first network node and the second network node may belong to the same communication system or belong to different communication systems.
  • the first and second network nodes may be core network nodes or access network nodes.
  • the method may further include: acquiring identifier information of the second network node reported by the terminal.
  • the method may further include: acquiring a second notification sent by the terminal; the second notification is used to indicate that the first notification is sent to the second network node.
  • the first notification further includes: identifier information of the terminal.
  • the identifier information of the terminal may include information such as an IMSI and an IMEI, as long as the terminal can be uniquely identified.
  • the second notification further includes: a cause value, wherein the cause value is used to indicate a reason for triggering the second network node in the second communication system or the second communication system to send the first notification. That is, the reason for releasing the terminal connection and the context is carried in the second notification message, for example, the terminal has left the second network node.
  • the method for sending the first notification to the second network node may include:
  • the first notification is sent to the second network node by the third party node.
  • the interface between the first network node and the second network node may be a physical interface or a wireless interface, which is not limited herein.
  • the third-party node is a network element that is connected to the first communication network and the second communication network;
  • the third-party node is a network element that is connected to both the first network node and the second network node.
  • the third-party node may be a core network element or an access network element or an operation and maintenance network element that is connected to the first and second network nodes.
  • Step 101 Obtain identification information of the second network node reported by the terminal, and obtain a second notification sent by the terminal, when the terminal is converted to access the first network node by the second network node.
  • the second notification is used to indicate that the first notification is sent to the second network node;
  • Step 102 The first network node sends a first notification to the second network node.
  • the first network node sends a first notification to the second communication system when the terminal is converted to access the first communication system by the second communication system; wherein the first notification is used at least for the notification
  • the second communication system releases the context of the terminal; when the terminal accesses the second communication system, the context of the terminal is saved in the second communication system.
  • the terminal establishes a connection with the network node in the second communication system when accessing the second communication system. It should be noted that, in this scenario, when establishing a connection with the second communication system, the connection may be established with the second network node in the second communication system, and may be other than the second network node in the second communication system.
  • the network node establishes a connection and does not specifically define it.
  • the triggering condition of the communication system that the terminal converts and accesses may be that the terminal finds that the second communication system that is currently providing the service cannot meet the requirements, and therefore, switches to the first communication system that can meet the usage requirements thereof.
  • the so-called satisfaction of the requirements here may be that the terminal may need to access a certain service, and the existing second communication system, such as 4G is not provided, will be transferred to access the first communication system, such as access to LTE. It can be understood that the foregoing is only one triggering example, and there may actually be other ways, but it is not exhaustive in this embodiment.
  • the first communication system, and the second communication system support different communication systems, and/or support at least partially different service types.
  • the first and second communication systems may be a 3GPP cellular network system such as a 5G system or a 4G system, or may be a non-3GPP system such as a WLAN; the first and second network nodes may be core network nodes or access network nodes, etc. .
  • the method may further include: acquiring identification information of the second communication system reported by the terminal.
  • the identifier information of the second communication system may be reported, or the identifier of the second network node in the second communication system that establishes a connection with the terminal may be reported. . As long as it can characterize the second communication system that was originally connected.
  • the method may further include: acquiring a second notification sent by the terminal; the second notification is used to indicate that the first notification is sent to the second communication system.
  • the first notification further includes: identifier information of the terminal.
  • the identifier information of the terminal may include information such as an IMSI and an IMEI, as long as the terminal can be uniquely identified.
  • the second notification further includes: a cause value, wherein the cause value is used to indicate a reason for triggering the second network node in the second communication system or the second communication system to send the first notification. That is, the reason for releasing the terminal connection and the context is carried in the second notification message, for example, the terminal has left the second network node.
  • the method for sending the first notification to the second communication system may include:
  • the first notification is sent to the second network node by the third party node.
  • the third-party node is a network element that is connected to the first communication network and the second communication network;
  • the third-party node is a network element that is connected to the first network node and the second network node.
  • the third-party node may be a core network element or an access network element or an operation and maintenance network element that is connected to the first and second network nodes.
  • Step 201 Obtain identification information of the second communication system reported by the terminal, and obtain a second notification sent by the terminal, when the terminal is converted to access the first communication system by the second communication system.
  • the second notification is used to indicate that the first notification is sent to the second communication system;
  • Step 202 The first network node sends a first notification to the second communication system.
  • the terminal switches from one network node or the communication system to another network node or the communication system, the first notification is sent to the network node or the communication system originally accessed by the terminal, so that the original connection is
  • the incoming network node or communication system releases the connection or releases the context of the terminal.
  • the originally accessed network or node also maintains the problem of the context of the terminal, so that the network node or system after the above solution achieves the effect of symmetrical state information of the terminal.
  • An embodiment of the present invention provides a method for releasing a terminal context notification, which is applied to a second network node, where the method includes: when the terminal is converted into accessing the first communication system by accessing the second communication system, or when When the terminal is converted to access the first network node by the access second network node, the second network node receives the first notification sent by the first communication system or the first network node;
  • the first notification is used to notify at least the context of releasing the terminal
  • the terminal accesses the second communication system or accesses the second network node
  • the terminal has a connection with the second communication system or the second network node, and the second communication system or the second network node
  • the context of the terminal is saved.
  • the first network node is located in the first communication system.
  • the second network node may be located in the first communication system or in another communication system, for example, may be located in the second communication system.
  • the first network node When the terminal is converted to access the first network node by the access second network node, the first network node sends a first notification to the second network node; wherein the first notification is used at least for the notification
  • the second network node releases the context of the terminal; when the terminal accesses the second network node, the second network node saves the context of the terminal.
  • the terminal establishes a connection with the second network node when accessing the second network node.
  • the triggering condition of the terminal switching access may be that the terminal finds that the second network node that is currently providing the service cannot meet the requirement, and therefore, switches to the first network node that can meet the usage requirement.
  • first network node and the second network node may belong to the same communication system or belong to different communication systems.
  • the first network node is a core network in the first communication system or a network node in an access network;
  • the second network node is a core network in the second communication system or a network node in the access network.
  • the second network node may be a node in the second communication system; of course, it may also be a node in the first communication network; correspondingly, the first network node may also be in the first communication system. Or a second communication system.
  • the first communication system, and the second communication system support different communication systems, and/or support at least partially different service types.
  • the first and second communication systems may be a 3GPP cellular network system such as a 5G system or a 4G system, or may be a non-3GPP system such as a WLAN; the first and second network nodes may be core network nodes or access network nodes, etc. .
  • the receiving the first notification sent by the first communications system or the first network node includes:
  • the first notification is received through a third party node.
  • the interface between the first network node and the second network node may be a physical interface or a wireless interface, which is not limited herein.
  • the method further includes:
  • the second network node notifies the third network node that saves the terminal connection or the terminal context, releases the connection of the terminal, or releases the terminal context.
  • the second network node may serve as a forwarding node, and control the third network node to release the connection of the terminal or release the terminal context based on the first notification.
  • the third-party node is a network element that is connected to the first communication network and the second communication network;
  • the third-party node is a network element that is connected to the first network node and the second network node.
  • the third-party node may be a core network element or an access network element or an operation and maintenance network element that is connected to the first and second network nodes.
  • the terminal switches from one network node or the communication system to another network node or the communication system, the first notification is sent to the network node or the communication system originally accessed by the terminal, so that the original connection is
  • the incoming network node or communication system releases the connection or releases the context of the terminal.
  • the originally accessed network or node also maintains the problem of the context of the terminal, so that the network node or system after the above solution achieves the effect of symmetrical state information of the terminal.
  • An embodiment of the present invention provides a first network node, as shown in FIG. 3, including:
  • the first processing unit 31 when the terminal is converted to access to the first network node by the access second network node, or when the terminal is converted to access to the first communication system by the access second communication system, Transmitting, by the first communication unit, the first notification to the second network node or the second communication system;
  • the first communication unit 32 sends a first notification to the second network node or the second communication system
  • the first notification is used to notify at least the second communication system, or the second network node releases the context of the terminal;
  • the terminal accesses the second communication system or accesses the second network node
  • the terminal has a connection with the second communication system or the second network node, and the second communication system or the second network node
  • the context of the terminal is saved.
  • the first network node is located in the first communication system.
  • the second network node may be located in the first communication system or in another communication system, for example, may be located in the second communication system.
  • the embodiment of the present invention provides the following two processing scenarios:
  • the first processing unit 31 when the terminal is converted to access the first network node by the access second network node, sends a first notification to the second network node by using the first communication unit 32; wherein, the first The notification is used to notify at least the second network node to release the context of the terminal; when the terminal accesses the second network node, the second network node saves the context of the terminal.
  • the terminal establishes a connection with the second network node when accessing the second network node.
  • the triggering condition of the terminal switching access may be that the terminal finds that the second network node that is currently providing the service cannot meet the requirement, and therefore, switches to the first network node that can meet the usage requirement.
  • first network node and the second network node may belong to the same communication system or belong to different communication systems.
  • the first and second network nodes may be core network nodes or access network nodes.
  • the first processing unit when the terminal is converted to access to the first network node by the access second network node, or when the terminal is converted to access the first communication by accessing the second communication system In the system, the first communication unit 32 acquires the identification information of the second network node reported by the terminal.
  • the first processing unit when the terminal is converted to access to the first network node by the access second network node, or when the terminal is converted to access the first communication system by accessing the second communication system
  • the first communication unit 32 acquires the second notification sent by the terminal, and the second notification is used to indicate that the first notification is sent to the second network node.
  • the first notification further includes: identifier information of the terminal.
  • the identifier information of the terminal may include information such as an IMSI and an IMEI, as long as the terminal can be uniquely identified.
  • the second notification further includes: a cause value, wherein the cause value is used to indicate a reason for triggering the second network node in the second communication system or the second communication system to send the first notification. That is, the reason for releasing the terminal connection and the context is carried in the second notification message, for example, the terminal has left the second network node.
  • the first notification is sent to the second network node by the third party node.
  • the interface between the first network node and the second network node may be a physical interface or a wireless interface, which is not limited herein.
  • the third-party node is a network element that is connected to the first communication network and the second communication network;
  • the third-party node is a network element that is connected to the first network node and the second network node.
  • the third-party node may be a core network element or an access network element or an operation and maintenance network element that is connected to the first and second network nodes.
  • the first processing unit sends a first notification to the second communication system by using the first communication unit when the terminal is converted to access the first communication system by the second communication system; wherein the first The notification is used to notify at least the second communication system to release the context of the terminal; when the terminal accesses the second communication system, the context of the terminal is saved in the second communication system.
  • the terminal establishes a connection with the network node in the second communication system when accessing the second communication system. It should be noted that, in this scenario, when establishing a connection with the second communication system, the connection may be established with the second network node in the second communication system, and may be other than the second network node in the second communication system.
  • the network node establishes a connection and does not specifically define it.
  • the triggering condition of the communication system that the terminal converts and accesses may be that the terminal finds that the second communication system that is currently providing the service cannot meet the requirements, and therefore, switches to the first communication system that can meet the usage requirements thereof.
  • the so-called satisfaction of the requirements here may be that the terminal may need to access a certain service, and the existing second communication system, such as 4G is not provided, will be transferred to access the first communication system, such as access to LTE. It can be understood that the foregoing is only one triggering example, and there may actually be other ways, but it is not exhaustive in this embodiment.
  • the first communication system, and the second communication system support different communication systems, and/or support at least partially different service types.
  • the first and second communication systems may be a 3GPP cellular network system such as a 5G system or a 4G system, or may be a non-3GPP system such as a WLAN; the first and second network nodes may be core network nodes or access network nodes, etc. .
  • the first processing unit acquires the identification information of the second communication system reported by the terminal by using the first communication unit when the terminal is converted to access the first communication system by the second communication system. .
  • the identifier information of the second communication system may be reported, or the identifier of the second network node in the second communication system that establishes a connection with the terminal may be reported. . As long as it can characterize the second communication system that was originally connected.
  • the first processing unit when the terminal is converted to access to the first network node by the access second network node, or when the terminal is converted to access the first communication system by accessing the second communication system And acquiring, by the first communication unit, a second notification sent by the terminal; the second notification is used to indicate that the first notification is sent to the second communication system.
  • the first notification further includes: identifier information of the terminal.
  • the identifier information of the terminal may include information such as an IMSI and an IMEI, as long as the terminal can be uniquely identified.
  • the second notification further includes: a cause value, wherein the cause value is used to indicate a reason for triggering the second network node in the second communication system or the second communication system to send the first notification. That is, the reason for releasing the terminal connection and the context is carried in the second notification message, for example, the terminal has left the second network node.
  • the method for sending the first notification to the second communication system may include:
  • the first notification is sent to the second network node by the third party node.
  • the third-party node is a network element that is connected to the first communication network and the second communication network;
  • the third-party node is a network element that is connected to the first network node and the second network node.
  • the third-party node may be a core network element or an access network element or an operation and maintenance network element that is connected to the first and second network nodes.
  • the terminal switches from one network node or the communication system to another network node or the communication system, the first notification is sent to the network node or the communication system originally accessed by the terminal, so that the original connection is
  • the incoming network node or communication system releases the connection or releases the context of the terminal.
  • the originally accessed network or node also maintains the problem of the context of the terminal, so that the network node or system after the above solution achieves the effect of symmetrical state information of the terminal.
  • the embodiment of the present invention provides a second network node, as shown in FIG. 4, including: a second processing unit 41, when the terminal is converted into accessing the first communication system by accessing the second communication system, or when Receiving, by the second communication unit, the first notification sent by the first communication system or the first network node by the second communication unit when the terminal is converted to access to the first network node;
  • the second communication unit 42 receives the first notification sent by the first communication system or the first network node;
  • the first notification is used to notify at least the context of releasing the terminal
  • the terminal accesses the second communication system or accesses the second network node
  • the terminal has a connection with the second communication system or the second network node, and the second communication system or the second network node
  • the context of the terminal is saved.
  • the first network node is located in the first communication system.
  • the second network node may be located in the first communication system or in another communication system, for example, may be located in the second communication system.
  • the triggering condition of the terminal switching access may be that the terminal finds that the second network node that is currently providing the service cannot meet the requirement, and therefore, switches to the first network node that can meet the usage requirement.
  • first network node and the second network node may belong to the same communication system or belong to different communication systems.
  • the first network node is a core network in the first communication system or a network node in an access network;
  • the second network node is a core network in the second communication system or a network node in the access network.
  • the second network node may be a node in the second communication system; of course, it may also be a node in the first communication network; correspondingly, the first network node may also be in the first communication system. Or a second communication system.
  • the first communication system, and the second communication system support different communication systems, and/or support at least partially different service types.
  • the first and second communication systems may be a 3GPP cellular network system such as a 5G system or a 4G system, or may be a non-3GPP system such as a WLAN; the first and second network nodes may be core network nodes or access network nodes, etc. .
  • the second communication unit 42 receives the first notification by using an interface with the first communication system
  • the first notification is received through a third party node.
  • the interface between the first network node and the second network node may be a physical interface or a wireless interface, which is not limited herein.
  • the second communication unit 42 notifies to save the terminal connection, Or the third network node of the terminal context releases the connection of the terminal or releases the terminal context.
  • the second network node may serve as a forwarding node, and control the third network node to release the connection of the terminal or release the terminal context based on the first notification.
  • the third-party node is a network element that is connected to the first communication network and the second communication network;
  • the third-party node is a network element that is connected to the first network node and the second network node.
  • the third-party node may be a core network element or an access network element or an operation and maintenance network element that is connected to the first and second network nodes.
  • the terminal switches from one network node or the communication system to another network node or the communication system, the first notification is sent to the network node or the communication system originally accessed by the terminal, so that the original connection is
  • the incoming network node or communication system releases the connection or releases the context of the terminal.
  • the originally accessed network or node also maintains the problem of the context of the terminal, so that the network node or system after the above solution achieves the effect of symmetrical state information of the terminal.
  • the embodiment of the present invention further provides a hardware composition structure of the first network node or the second network node.
  • the method includes at least one processor 51, a memory 52, and at least one network interface 53.
  • the various components are coupled together by a bus system 54.
  • the bus system 54 is used to implement connection communication between these components.
  • the bus system 54 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 54 in FIG.
  • the memory 52 in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • memory 52 stores elements, executable modules or data structures, or a subset thereof, or their extension set:
  • the processor 51 is configured to be able to process the method steps of the first embodiment or the second embodiment, and details are not described herein.
  • a computer storage medium is provided by the embodiment of the present invention.
  • the computer storage medium stores computer executable instructions. When the computer executable instructions are executed, the method steps of the first embodiment or the second embodiment are implemented.
  • Embodiments of the Invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • an embodiment of the present invention further provides a computer storage medium, wherein a computer program is configured, and the computer program is configured to execute a data scheduling method according to an embodiment of the present invention.

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Abstract

本发明公开了一种释放终端上下文的通知方法、网络节点及计算机存储介质，其中，方法包括：当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，所述第一网络节点向所述第二网络节点、或者第二通信系统发送第一通知；其中，所述第一通知至少用于通知所述第二通信系统、或者、第二网络节点释放所述终端的上下文；所述终端在接入所述第二通信系统、或者接入第二网络节点时，所述第二通信系统或者第二网络节点中保存所述终端的上下文。

Description

释放终端上下文的通知方法、网络设备及计算机存储介质 技术领域
本发明涉及信息处理技术领域，尤其涉及一种释放终端上下文的通知方法、网络节点及计算机存储介质。
背景技术
当终端与第一通信系统建立连接后，如果由于某种原因，例如某些业务在第一系统不支持，终端可能尝试接入到第二通信系统进行此业务。对于某些能力的终端，同时只能在一个通信系统进行通信。当终端接入到第二通信系统时，第一通信系统网络节点并不知道终端已经不在第一通信系统中，从而会导致终端和网络对于终端的状态信息不对称。
发明内容
为解决上述技术问题，本发明实施例提供了一种释放终端上下文的通知方法、网络节点及计算机存储介质。
本发明实施例提供一种释放终端上下文的通知方法，应用于第一网络节点，所述方法包括：
当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，所述第一网络节点向所述第二网络节点、或者第二通信系统发送第一通知；
其中，所述第一通知至少用于通知所述第二通信系统、或者、第二网络节点释放所述终端的上下文；所述终端在接入所述第二通信系统、或者接入第二网络节点时，所述第二通信系统或者第二网络节点中保存所述终端的上下文。
本发明实施例提供一种释放终端上下文的通知方法，应用于第二网络节点，所述方法包括：
当终端由接入第二通信系统转换为接入到第一通信系统时、或者、当所述终端由接入第二网络节点转换为接入到第一网络节点时，所述第二网络节点接收所述第一通信系统或者第一网络节点发来的第一通知；
其中，所述第一通知至少用于通知释放所述终端的上下文；
所述终端在接入所述第二通信系统、或者接入第二网络节点时，与所述第二通信系统或者第二网络节点存在连接，并且所述第二通信系统或者第二网络节点中保存所述终端的上下文。
本发明实施例提供一种第一网络节点，包括：
第一处理单元，当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，控制第一通信单元向所述第二网络节点、或者第二通信系统发送第一通知；
第一通信单元，向所述第二网络节点、或者第二通信系统发送第一通知；
其中，所述第一通知至少用于通知所述第二通信系统、或者、第二网络节点释放所述终端的上下文；所述终端在接入所述第二通信系统、或者接入第二网络节点时，所述第二通信系统或者第二网络节点中保存所述终端的上下文。
本发明实施例提供一种第二网络节点，包括：
第二处理单元，当终端由接入第二通信系统转换为接入到第一通信系统时、或者、当所述终端由接入第二网络节点转换为接入到第一网络节点时，通过第二通信单元接收所述第一通信系统或者第一网络节点发来的第一通知；
第二通信单元，接收所述第一通信系统或者第一网络节点发来的第一 通知；
其中，所述第一通知至少用于通知释放所述终端的上下文；
所述终端在接入所述第二通信系统、或者接入第二网络节点时，与所述第二通信系统或者第二网络节点存在连接，并且所述第二通信系统或者第二网络节点中保存所述终端的上下文。
本发明实施例提供的一种网络节点，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
其中，所述处理器用于运行所述计算机程序时，执行前述方法的步骤。
本发明实施例提供的一种计算机存储介质，所述计算机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被执行时实现前述方法步骤。
本发明实施例的技术方案，就能够在终端从一个网络节点或通信系统，切换到另一个网络节点或通信系统的时候，向终端原来接入的网络节点或通信系统发送第一通知，使得原始接入的网络节点或通信系统释放连接或释放终端的上下文。如此，就避免当终端已经接入到其他系统的时候，原来接入的网络或节点还维持终端的上下文的问题，使得采用了上述方案之后的网络节点或者系统达到终端的状态信息对称的效果。
附图说明
图1为本发明实施例提供的一种释放终端上下文的通知方法流程示意图1；
图2为本发明实施例提供的一种释放终端上下文的通知方法流程示意图2；
图3为本发明实施例第一网络节点组成结构示意图；
图4为本发明实施例第二网络节点组成结构示意图；
图5为本发明实施例的一种硬件架构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
实施例一、
本发明实施例提供了一种释放终端上下文的通知方法，应用于第一网络节点，所述方法包括：当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，所述第一网络节点向所述第二通信节点、或者第二通信系统发送第一通知；
其中，所述第一通知至少用于通知所述第二通信系统、或者、第二网络节点释放所述终端的上下文；
所述终端在接入所述第二通信系统、或者接入第二网络节点时，与所述第二通信系统或者第二网络节点存在连接，并且所述第二通信系统或者第二网络节点中保存所述终端的上下文。
另外，第一网络节点位于第一通信系统中。第二网络节点，可以位于第一通信系统中，也可以位于其他通信系统中，比如，可以位于第二通信系统中。
具体来说，本发明实施例提供以下两种处理场景：
场景一、
当终端由接入第二网络节点转换为接入到第一网络节点时，所述第一网络节点向所述第二网络节点发送第一通知；其中，所述第一通知至少用于通知第二网络节点释放所述终端的上下文；所述终端在接入所述第二网络节点时，第二网络节点中保存所述终端的上下文。
其中，终端在接入所述第二网络节点时，与第二网络节点建立连接。
终端转换接入的触发条件，可以为，终端发现当前为其提供服务的第二网络节点，无法满足其要求，因此，就切换至能够满足其使用要求的第一网络节点。
需要指出的是，前述第一网络节点与第二网络节点，可以分别属于相同的通信系统，也可以属于不同的通信系统。第一、二网络节点可以是核心网网络节点或者接入网络节点等。
进一步地，当终端由接入第二网络节点转换为接入到第一网络节点时，还可以包括：获取所述终端上报的所述第二网络节点的标识信息。
此外，还可以包括：获取所述终端发来的第二通知；所述第二通知用于指示向第二网络节点发送第一通知。
所述第一通知中还包括：所述终端的标识信息。其中，所述终端的标识信息可以包括IMSI、IMEI等信息，只要能唯一的标识终端即可。
所述第二通知中还包括：原因值，其中，所述原因值用于表示触发所述第二通信系统或第二通信系统中的第二网络节点发送所述第一通知的原因。也就是说，在第二通知消息中携带释放终端连接和上下文的原因，例如终端已经离开第二网络节点。
进一步地，向第二网络节点发送第一通知的方法，可以包括：
通过与所述第二网络节点的接口，向所述第二网络节点发送第一通知；
或者，
通过第三方节点向第二网络节点发送第一通知。
其中，所述第一网络节点与第二网络节点之间的接口，可以为物理接口也可以为无线接口，这里不做限定。
所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连 接的网元。
比如，第三方节点可以是与第一、二网络节点存在连接的核心网元或者接入网元或者操作维护网元。
本场景可以如图1所示，包括：
步骤101：当终端由接入第二网络节点转换为接入到第一网络节点时，获取所述终端上报的所述第二网络节点的标识信息、以及获取所述终端发来的第二通知；所述第二通知用于指示向第二网络节点发送第一通知；
步骤102：所述第一网络节点向所述第二网络节点发送第一通知。
场景二、
当终端由接入第二通信系统转换为接入到第一通信系统时，所述第一网络节点向所述第二通信系统发送第一通知；其中，所述第一通知至少用于通知第二通信系统释放所述终端的上下文；所述终端在接入所述第二通信系统时，第二通信系统中保存所述终端的上下文。
其中，终端在接入所述第二通信系统时，与第二通信系统中的网络节点建立连接。需要指出的是，本场景中，与第二通信系统建立连接的时候，可以与第二通信系统中的第二网络节点建立连接，还可以与第二通信系统中的除第二网络节点之外的网络节点建立连接，不进行具体限定。
终端转换接入的通信系统的触发条件，可以为，终端发现当前为其提供服务的第二通信系统，无法满足其要求，因此，就切换至能够满足其使用要求的第一通信系统。这里所谓的满足其要求可以为终端可能需要接入某项业务，而现有的第二通信系统，比如4G并未提供，就会转为接入第一通信系统，比如接入到LTE中。可以理解的是，前述仅为一种触发示例，实际上还可以存在其他方式，只是本实施例中不进行穷举。
需要指出的是，所述第一通信系统、与所述第二通信系统，支持不同的通信制式、和/或、支持至少部分不同的业务类型。具体来说，第一、二 通信系统可以是5G系统或者4G系统等3GPP蜂窝网络系统，也可以是WLAN等非3GPP系统；第一、二网络节点可以是核心网网络节点或者接入网络节点等。
进一步地，当终端由接入第二通信系统转换为接入到第一通信系统时，还可以包括：获取所述终端上报的所述第二通信系统的标识信息。
这里，所述上报所述第二通信系统的标识信息，可以为上报第二通信系统的标识，还可以为，上报与所述终端建立连接的第二通信系统中的第二网络节点的标识信息。只要能够表征原来所接入的第二通信系统即可。
此外，还可以包括：获取所述终端发来的第二通知；所述第二通知用于指示向第二通信系统发送第一通知。
所述第一通知中还包括：所述终端的标识信息。其中，所述终端的标识信息可以包括IMSI、IMEI等信息，只要能唯一的标识终端即可。
所述第二通知中还包括：原因值，其中，所述原因值用于表示触发所述第二通信系统或第二通信系统中的第二网络节点发送所述第一通知的原因。也就是说，在第二通知消息中携带释放终端连接和上下文的原因，例如终端已经离开第二网络节点。
进一步地，向第二通信系统发送第一通知的方法，可以包括：
通过与所述第二通信系统的接口，向所述第二通信系统发送第一通知；
或者，
通过与所述第二通信系统的网络节点的接口，向所述第二通信系统发送第一通知；其中，第二通信系统的网络节点的接口可以为第二通信系统通过边缘设备的接口获取的其他设备或者其他网络发来的信息。
或者，
通过第三方节点向第二网络节点发送第一通知。
所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接 的网元；或者，
所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
比如，第三方节点可以是与第一、二网络节点存在连接的核心网元或者接入网元或者操作维护网元。
本场景可以如图2所示，包括：
步骤201：当终端由接入第二通信系统转换为接入到第一通信系统时，获取所述终端上报的所述第二通信系统的标识信息、以及获取所述终端发来的第二通知；所述第二通知用于指示向第二通信系统发送第一通知；
步骤202：所述第一网络节点向所述第二通信系统发送第一通知。
可见，通过采用上述方案，就能够在终端从一个网络节点或通信系统，切换到另一个网络节点或通信系统的时候，向终端原来接入的网络节点或通信系统发送第一通知，使得原始接入的网络节点或通信系统释放连接或释放终端的上下文。如此，就避免当终端已经接入到其他系统的时候，原来接入的网络或节点还维持终端的上下文的问题，使得采用了上述方案之后的网络节点或者系统达到终端的状态信息对称的效果。
实施例二、
本发明实施例提供了一种释放终端上下文的通知方法，应用于第二网络节点，所述方法包括：当终端由接入第二通信系统转换为接入到第一通信系统时、或者、当所述终端由接入第二网络节点转换为接入到第一网络节点时，所述第二网络节点接收所述第一通信系统或者第一网络节点发来的第一通知；
其中，所述第一通知至少用于通知释放所述终端的上下文；
所述终端在接入所述第二通信系统、或者接入第二网络节点时，与所述第二通信系统或者第二网络节点存在连接，并且所述第二通信系统或者 第二网络节点中保存所述终端的上下文。
另外，第一网络节点位于第一通信系统中。第二网络节点，可以位于第一通信系统中，也可以位于其他通信系统中，比如，可以位于第二通信系统中。
具体来说，
当终端由接入第二网络节点转换为接入到第一网络节点时，所述第一网络节点向所述第二网络节点发送第一通知；其中，所述第一通知至少用于通知第二网络节点释放所述终端的上下文；所述终端在接入所述第二网络节点时，第二网络节点中保存所述终端的上下文。
其中，终端在接入所述第二网络节点时，与第二网络节点建立连接。
终端转换接入的触发条件，可以为，终端发现当前为其提供服务的第二网络节点，无法满足其要求，因此，就切换至能够满足其使用要求的第一网络节点。
需要指出的是，前述第一网络节点与第二网络节点，可以分别属于相同的通信系统，也可以属于不同的通信系统。
所述第一网络节点为所述第一通信系统中的核心网或者接入网中的网络节点；
所述第二网络节点，为所述第二通信系统中的核心网或者接入网的网络节点。
本实施例中，第二网络节点可以为处于第二通信系统中的节点；当然，还可以为处于第一通信网络中的节点；相应的，所述第一网络节点也可以处于第一通信系统或第二通信系统。
所述第一通信系统、与所述第二通信系统，支持不同的通信制式、和/或、支持至少部分不同的业务类型。具体来说，第一、二通信系统可以是5G系统或者4G系统等3GPP蜂窝网络系统，也可以是WLAN等非3GPP 系统；第一、二网络节点可以是核心网网络节点或者接入网络节点等。
进一步地，所述接收所述第一通信系统或者第一网络节点发来的第一通知，包括：
通过与所述第一通信系统的接口，接收第一通知；
或者，
通过与所述第一网络节点连接的接口，接收第一通知；
或者，
通过第三方节点，接收第一通知。
其中，所述第一网络节点与第二网络节点之间的接口，可以为物理接口也可以为无线接口，这里不做限定。
进一步地，所述第二通信系统的第二网络节点接收所述第一通信系统中的第一网络节点发来的第一通知之后，所述方法还包括：
所述第二网络节点通知保存所述终端连接、或者所述终端上下文的第三网络节点，释放所述终端的连接或者释放所述终端上下文。
也就是说，当第三网络节点保存有所述终端的连接或者终端上下文时，第二网络节点可以作为转发节点，基于第一通知控制第三网络节点释放所述终端的连接或者释放终端上下文。
所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
比如，第三方节点可以是与第一、二网络节点存在连接的核心网元或者接入网元或者操作维护网元。
可见，通过采用上述方案，就能够在终端从一个网络节点或通信系统，切换到另一个网络节点或通信系统的时候，向终端原来接入的网络节点或 通信系统发送第一通知，使得原始接入的网络节点或通信系统释放连接或释放终端的上下文。如此，就避免当终端已经接入到其他系统的时候，原来接入的网络或节点还维持终端的上下文的问题，使得采用了上述方案之后的网络节点或者系统达到终端的状态信息对称的效果。
实施例三、
本发明实施例提供了一种第一网络节点，如图3所示，包括：
第一处理单元31，当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，控制第一通信单元向所述第二网络节点、或者第二通信系统发送第一通知；
第一通信单元32，向所述第二网络节点、或者第二通信系统发送第一通知；
其中，所述第一通知至少用于通知所述第二通信系统、或者、第二网络节点释放所述终端的上下文；
所述终端在接入所述第二通信系统、或者接入第二网络节点时，与所述第二通信系统或者第二网络节点存在连接，并且所述第二通信系统或者第二网络节点中保存所述终端的上下文。
另外，第一网络节点位于第一通信系统中。第二网络节点，可以位于第一通信系统中，也可以位于其他通信系统中，比如，可以位于第二通信系统中。
具体来说，本发明实施例提供以下两种处理场景：
场景一、
第一处理单元31，当终端由接入第二网络节点转换为接入到第一网络节点时，通过第一通信单元32向所述第二网络节点发送第一通知；其中，所述第一通知至少用于通知第二网络节点释放所述终端的上下文；所述终 端在接入所述第二网络节点时，第二网络节点中保存所述终端的上下文。
其中，终端在接入所述第二网络节点时，与第二网络节点建立连接。
终端转换接入的触发条件，可以为，终端发现当前为其提供服务的第二网络节点，无法满足其要求，因此，就切换至能够满足其使用要求的第一网络节点。
需要指出的是，前述第一网络节点与第二网络节点，可以分别属于相同的通信系统，也可以属于不同的通信系统。第一、二网络节点可以是核心网网络节点或者接入网络节点等。
进一步地，所述第一处理单元，当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，第一通信单元32获取所述终端上报的所述第二网络节点的标识信息。
此外，所述第一处理单元，当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，第一通信单元32获取所述终端发来的第二通知；所述第二通知用于指示向第二网络节点发送第一通知。
所述第一通知中还包括：所述终端的标识信息。其中，所述终端的标识信息可以包括IMSI、IMEI等信息，只要能唯一的标识终端即可。
所述第二通知中还包括：原因值，其中，所述原因值用于表示触发所述第二通信系统或第二通信系统中的第二网络节点发送所述第一通知的原因。也就是说，在第二通知消息中携带释放终端连接和上下文的原因，例如终端已经离开第二网络节点。
进一步地，第一通信单元32
通过与所述第二网络节点的接口，向所述第二网络节点发送第一通知；
或者，
通过第三方节点向第二网络节点发送第一通知。
其中，所述第一网络节点与第二网络节点之间的接口，可以为物理接口也可以为无线接口，这里不做限定。
所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
比如，第三方节点可以是与第一、二网络节点存在连接的核心网元或者接入网元或者操作维护网元。
场景二、
所述第一处理单元，当终端由接入第二通信系统转换为接入到第一通信系统时，通过第一通信单元向所述第二通信系统发送第一通知；其中，所述第一通知至少用于通知第二通信系统释放所述终端的上下文；所述终端在接入所述第二通信系统时，第二通信系统中保存所述终端的上下文。
其中，终端在接入所述第二通信系统时，与第二通信系统中的网络节点建立连接。需要指出的是，本场景中，与第二通信系统建立连接的时候，可以与第二通信系统中的第二网络节点建立连接，还可以与第二通信系统中的除第二网络节点之外的网络节点建立连接，不进行具体限定。
终端转换接入的通信系统的触发条件，可以为，终端发现当前为其提供服务的第二通信系统，无法满足其要求，因此，就切换至能够满足其使用要求的第一通信系统。这里所谓的满足其要求可以为终端可能需要接入某项业务，而现有的第二通信系统，比如4G并未提供，就会转为接入第一通信系统，比如接入到LTE中。可以理解的是，前述仅为一种触发示例，实际上还可以存在其他方式，只是本实施例中不进行穷举。
需要指出的是，所述第一通信系统、与所述第二通信系统，支持不同 的通信制式、和/或、支持至少部分不同的业务类型。具体来说，第一、二通信系统可以是5G系统或者4G系统等3GPP蜂窝网络系统，也可以是WLAN等非3GPP系统；第一、二网络节点可以是核心网网络节点或者接入网络节点等。
进一步地，所述第一处理单元，当终端由接入第二通信系统转换为接入到第一通信系统时，通过第一通信单元获取所述终端上报的所述第二通信系统的标识信息。
这里，所述上报所述第二通信系统的标识信息，可以为上报第二通信系统的标识，还可以为，上报与所述终端建立连接的第二通信系统中的第二网络节点的标识信息。只要能够表征原来所接入的第二通信系统即可。
此外，所述第一处理单元，当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，通过第一通信单元获取所述终端发来的第二通知；所述第二通知用于指示向第二通信系统发送第一通知。
所述第一通知中还包括：所述终端的标识信息。其中，所述终端的标识信息可以包括IMSI、IMEI等信息，只要能唯一的标识终端即可。
所述第二通知中还包括：原因值，其中，所述原因值用于表示触发所述第二通信系统或第二通信系统中的第二网络节点发送所述第一通知的原因。也就是说，在第二通知消息中携带释放终端连接和上下文的原因，例如终端已经离开第二网络节点。
进一步地，向第二通信系统发送第一通知的方法，可以包括：
通过与所述第二通信系统的接口，向所述第二通信系统发送第一通知；
或者，
通过与所述第二通信系统的网络节点的接口，向所述第二通信系统发送第一通知；其中，第二通信系统的网络节点的接口可以为第二通信系统 通过边缘设备的接口获取的其他设备或者其他网络发来的信息。
或者，
通过第三方节点向第二网络节点发送第一通知。
所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
比如，第三方节点可以是与第一、二网络节点存在连接的核心网元或者接入网元或者操作维护网元。
可见，通过采用上述方案，就能够在终端从一个网络节点或通信系统，切换到另一个网络节点或通信系统的时候，向终端原来接入的网络节点或通信系统发送第一通知，使得原始接入的网络节点或通信系统释放连接或释放终端的上下文。如此，就避免当终端已经接入到其他系统的时候，原来接入的网络或节点还维持终端的上下文的问题，使得采用了上述方案之后的网络节点或者系统达到终端的状态信息对称的效果。
实施例四、
本发明实施例提供了一种第二网络节点，如图4所示，包括：第二处理单元41，当终端由接入第二通信系统转换为接入到第一通信系统时、或者、当所述终端由接入第二网络节点转换为接入到第一网络节点时，通过第二通信单元接收所述第一通信系统或者第一网络节点发来的第一通知；
第二通信单元42，接收所述第一通信系统或者第一网络节点发来的第一通知；
其中，所述第一通知至少用于通知释放所述终端的上下文；
所述终端在接入所述第二通信系统、或者接入第二网络节点时，与所述第二通信系统或者第二网络节点存在连接，并且所述第二通信系统或者 第二网络节点中保存所述终端的上下文。
另外，第一网络节点位于第一通信系统中。第二网络节点，可以位于第一通信系统中，也可以位于其他通信系统中，比如，可以位于第二通信系统中。
终端转换接入的触发条件，可以为，终端发现当前为其提供服务的第二网络节点，无法满足其要求，因此，就切换至能够满足其使用要求的第一网络节点。
需要指出的是，前述第一网络节点与第二网络节点，可以分别属于相同的通信系统，也可以属于不同的通信系统。
所述第一网络节点为所述第一通信系统中的核心网或者接入网中的网络节点；
所述第二网络节点，为所述第二通信系统中的核心网或者接入网的网络节点。
本实施例中，第二网络节点可以为处于第二通信系统中的节点；当然，还可以为处于第一通信网络中的节点；相应的，所述第一网络节点也可以处于第一通信系统或第二通信系统。
所述第一通信系统、与所述第二通信系统，支持不同的通信制式、和/或、支持至少部分不同的业务类型。具体来说，第一、二通信系统可以是5G系统或者4G系统等3GPP蜂窝网络系统，也可以是WLAN等非3GPP系统；第一、二网络节点可以是核心网网络节点或者接入网络节点等。
进一步地，所述第二通信单元42，通过与所述第一通信系统的接口，接收第一通知；
或者，
通过与所述第一网络节点连接的接口，接收第一通知；
或者，
通过第三方节点，接收第一通知。
其中，所述第一网络节点与第二网络节点之间的接口，可以为物理接口也可以为无线接口，这里不做限定。
进一步地，所述第二通信系统的第二网络节点接收所述第一通信系统中的第一网络节点发来的第一通知之后，所述第二通信单元42，通知保存所述终端连接、或者所述终端上下文的第三网络节点，释放所述终端的连接或者释放所述终端上下文。
也就是说，当第三网络节点保存有所述终端的连接或者终端上下文时，第二网络节点可以作为转发节点，基于第一通知控制第三网络节点释放所述终端的连接或者释放终端上下文。
所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
比如，第三方节点可以是与第一、二网络节点存在连接的核心网元或者接入网元或者操作维护网元。
可见，通过采用上述方案，就能够在终端从一个网络节点或通信系统，切换到另一个网络节点或通信系统的时候，向终端原来接入的网络节点或通信系统发送第一通知，使得原始接入的网络节点或通信系统释放连接或释放终端的上下文。如此，就避免当终端已经接入到其他系统的时候，原来接入的网络或节点还维持终端的上下文的问题，使得采用了上述方案之后的网络节点或者系统达到终端的状态信息对称的效果。
本发明实施例还提供了一种第一网络节点或者第二网络节点的硬件组成架构，如图5所示，包括：至少一个处理器51、存储器52、至少一个网络接口53。各个组件通过总线系统54耦合在一起。可理解，总线系统54 用于实现这些组件之间的连接通信。总线系统54除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图5中将各种总线都标为总线系统54。
可以理解，本发明实施例中的存储器52可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。
在一些实施方式中，存储器52存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：
操作系统521和应用程序522。
其中，所述处理器51配置为：能够处理前述实施例一或二的方法步骤，这里不再进行赘述。
本发明实施例提供的一种计算机存储介质，所述计算机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被执行时实施前述实施例一或二的方法步骤。
本发明实施例上述装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，其中存储有计算机程序，该计算机程序配置为执行本发明实施例的数据调度方法。
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人 员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。

Claims (32)

  1. 一种释放终端上下文的通知方法，应用于第一网络节点，所述方法包括：
    当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，所述第一网络节点向所述第二网络节点、或者第二通信系统发送第一通知；
    其中，所述第一通知至少用于通知所述第二通信系统、或者、第二网络节点释放所述终端的上下文；所述终端在接入所述第二通信系统、或者接入第二网络节点时，所述第二通信系统或者第二网络节点中保存所述终端的上下文。
  2. 根据权利要求1所述的方法，其中，所述当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，所述方法还包括：
    获取所述终端上报的所述第二通信系统、或者第二网络节点的标识信息。
  3. 根据权利要求2所述的方法，其中，所述当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，所述方法还包括：
    获取所述终端发来的第二通知；所述第二通知用于指示向所述第二通信系统、或者第二网络节点发送第一通知。
  4. 根据权利要求1所述的方法，其中，所述第一通知中还包括：所述终端的标识信息。
  5. 根据权利要求3所述的方法，其中，所述第二通知中还包括：原因值，其中，所述原因值用于表示触发所述第二通信系统或第二通信系统中的第二网络节点发送所述第一通知的原因。
  6. 根据权利要求3所述的方法，其中，所述向所述第二网络节点、或者第二通信系统发送第一通知，包括：
    通过与所述第二通信系统的接口，向所述第二通信系统发送第一通知；
    或者，
    通过与所述第二通信系统的网络节点的接口，向所述第二通信系统发送第一通知；
    或者，
    通过与所述第二网络节点的接口，向所述第二网络节点发送第一通知；
    或者，
    通过第三方节点向所述第二通信系统、或者第二网络节点发送第一通知。
  7. 根据权利要求1所述的方法，其中，所述第一通信系统、与所述第二通信系统，支持不同的通信制式、和/或、支持至少部分不同的业务类型。
  8. 根据权利要求1所述的方法，其中，所述第一网络节点为所述第一通信系统中的核心网或者接入网中的网络节点；
    所述第二网络节点，为所述第二通信系统中的核心网或者接入网的网络节点。
  9. 根据权利要求6所述的方法，其中，所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
    所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
  10. 一种释放终端上下文的通知方法，应用于第二网络节点，所述方法包括：
    当终端由接入第二通信系统转换为接入到第一通信系统时、或者、当所述终端由接入第二网络节点转换为接入到第一网络节点时，所述第二网 络节点接收所述第一通信系统或者第一网络节点发来的第一通知；
    其中，所述第一通知至少用于通知释放所述终端的上下文；
    所述终端在接入所述第二通信系统、或者接入第二网络节点时，与所述第二通信系统或者第二网络节点存在连接，并且所述第二通信系统或者第二网络节点中保存所述终端的上下文。
  11. 根据权利要求10所述的方法，其中，所述接收所述第一通信系统或者第一网络节点发来的第一通知，包括：
    通过与所述第一通信系统的接口，接收第一通知；
    或者，
    通过与所述第一网络节点连接的接口，接收第一通知；
    或者，
    通过第三方节点，接收第一通知。
  12. 根据权利要求10所述的方法，其中，所述第一通信系统、与所述第二通信系统，支持不同的通信制式、和/或、支持至少部分不同的业务类型。
  13. 根据权利要求10所述的方法，其中，所述第一网络节点为所述第一通信系统中的核心网或者接入网中的网络节点；
    所述第二网络节点，为所述第二通信系统中的核心网或者接入网的网络节点。
  14. 根据权利要求11所述的方法，其中，所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
    所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
  15. 根据权利要求10所述的方法，其中，所述第二通信系统的第二网络节点接收所述第一通信系统中的第一网络节点发来的第一通知之后，所 述方法还包括：
    所述第二网络节点通知保存所述终端连接、或者所述终端上下文的第三网络节点，释放所述终端的连接或者释放所述终端上下文。
  16. 一种第一网络节点，包括：
    第一处理单元，当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，控制第一通信单元向所述第二网络节点、或者第二通信系统发送第一通知；
    第一通信单元，向所述第二网络节点、或者第二通信系统发送第一通知；
    其中，所述第一通知至少用于通知所述第二通信系统、或者、第二网络节点释放所述终端的上下文；所述终端在接入所述第二通信系统、或者接入第二网络节点时，所述第二通信系统或者第二网络节点中保存所述终端的上下文。
  17. 根据权利要求16所述的第一网络节点，其中，
    所述第一处理单元，当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，通过第一通信单元获取所述终端上报的所述第二通信系统、或者第二网络节点的标识信息。
  18. 根据权利要求17所述的第一网络节点，其中，所述第一处理单元，当终端由接入第二网络节点转换为接入到第一网络节点、或者、当所述终端由接入第二通信系统转换为接入到第一通信系统时，通过第一通信单元获取所述终端发来的第二通知；所述第二通知用于指示向所述第二通信系统、或者第二网络节点发送第一通知。
  19. 根据权利要求16所述的第一网络节点，其中，所述第一通知中还包括：所述终端的标识信息。
  20. 根据权利要求18所述的第一网络节点，其中，所述第二通知中还包括：原因值，其中，所述原因值用于表示触发所述第二通信系统或第二通信系统中的第二网络节点发送所述第一通知的原因。
  21. 根据权利要求18所述的第一网络节点，其中，所述第一通信单元通过与所述第二通信系统的接口，向所述第二通信系统发送第一通知；
    或者，
    通过与所述第二通信系统的网络节点的接口，向所述第二通信系统发送第一通知；
    或者，
    通过与所述第二网络节点的接口，向所述第二网络节点发送第一通知；
    或者，
    通过第三方节点向所述第二通信系统、或者第二网络节点发送第一通知。
  22. 根据权利要求16所述的第一网络节点，其中，所述第一通信系统、与所述第二通信系统，支持不同的通信制式、和/或、支持至少部分不同的业务类型。
  23. 根据权利要求16所述的第一网络节点，其中，所述第一网络节点为所述第一通信系统中的核心网或者接入网中的网络节点；
    所述第二网络节点，为所述第二通信系统中的核心网或者接入网的网络节点。
  24. 根据权利要求21所述的第一网络节点，其中，所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
    所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
  25. 一种第二网络节点，包括：
    第二处理单元，当终端由接入第二通信系统转换为接入到第一通信系统时、或者、当所述终端由接入第二网络节点转换为接入到第一网络节点时，通过第二通信单元接收所述第一通信系统或者第一网络节点发来的第一通知；
    第二通信单元，接收所述第一通信系统或者第一网络节点发来的第一通知；
    其中，所述第一通知至少用于通知释放所述终端的上下文；
    所述终端在接入所述第二通信系统、或者接入第二网络节点时，与所述第二通信系统或者第二网络节点存在连接，并且所述第二通信系统或者第二网络节点中保存所述终端的上下文。
  26. 根据权利要求25所述的第二网络节点，其中，所述第二通信单元，通过与所述第一通信系统的接口，接收第一通知；
    或者，
    通过与所述第一网络节点连接的接口，接收第一通知；
    或者，
    通过第三方节点，接收第一通知。
  27. 根据权利要求25所述的第二网络节点，其中，所述第一通信系统、与所述第二通信系统，支持不同的通信制式、和/或、支持至少部分不同的业务类型。
  28. 根据权利要求25所述的第二网络节点，其中，所述第一网络节点为所述第一通信系统中的核心网或者接入网中的网络节点；
    所述第二网络节点，为所述第二通信系统中的核心网或者接入网的网络节点。
  29. 根据权利要求26所述的第二网络节点，其中，所述第三方节点为与所述第一通信网络以及第二通信网络均存在连接的网元；或者，
    所述第三方节点为与所述第一网络节点、以及第二网络节点均存在连接的网元。
  30. 根据权利要求25所述的第二网络节点，其中，所述第二通信单元，通知保存所述终端连接、或者所述终端上下文的第三网络节点，释放所述终端的连接或者释放所述终端上下文。
  31. 一种网络节点，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
    其中，所述处理器用于运行所述计算机程序时，执行权利要求1-15任一项所述方法的步骤。
  32. 一种计算机存储介质，所述计算机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被执行时实现权利要求1-15任一项所述方法的步骤。
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