WO2018121644A1 - 无线接入网络间的移动性管理方法、核心网设备及基站 - Google Patents

无线接入网络间的移动性管理方法、核心网设备及基站 Download PDF

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Publication number
WO2018121644A1
WO2018121644A1 PCT/CN2017/119232 CN2017119232W WO2018121644A1 WO 2018121644 A1 WO2018121644 A1 WO 2018121644A1 CN 2017119232 W CN2017119232 W CN 2017119232W WO 2018121644 A1 WO2018121644 A1 WO 2018121644A1
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Prior art keywords
terminal
ran
base station
inactive state
context information
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PCT/CN2017/119232
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English (en)
French (fr)
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梁靖
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电信科学技术研究院
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Publication of WO2018121644A1 publication Critical patent/WO2018121644A1/zh

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    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present disclosure relates to the field of mobile communications technologies, and in particular, to a mobility management method, a core network device, and a base station between wireless access networks.
  • New RAT new radio access technology
  • NR 5G new air interface
  • the terminal In the inactive state, the terminal maintains the core network connection, but does not perform the normal operation of the air interface connection state (such as handover, uplink timing update, radio link monitoring, etc.), and does not allocate the terminal identifier (such as C-RNTI) directly used for air interface transmission. Therefore, it is not possible to directly perform air interface scheduling transmission.
  • the terminal In the inactive state, the terminal needs to listen to the paging message to ensure that the call from the network side can be received.
  • Figure 1 is an interface in a network architecture of a NextGen network, where the gNB is a base station in a New RAT (NR) system.
  • NG2 represents a control plane interface of a radio access network (RAN, Radio Access Network) and a core network
  • NG3 represents a user plane interface of the RAN and the core network.
  • the NR base station gNB is connected to the user function function (UP functions) unit of the 5G core network (NGC, NextGen Core) through the user plane interface NG3, and is connected to the control function function (CP functions) unit of the NGC through the control plane interface NG2.
  • UP functions user function function
  • CP functions control function function
  • the RAN node In the inactive state of the terminal (UE), although the RAN node releases the Radio Resource Control (RRC) connection of the UE, it still retains the connection of the NG2 and NG3 interfaces of the UE.
  • RRC Radio Resource Control
  • the UE is transparent to the core network in this state, that is, the core network still considers that the UE is always in the connected state, so the downlink signaling or data will arrive at the RAN node, and the RAN needs to page the UE.
  • CN level core level
  • RAN level radio access network level
  • the CN level location area that is, the UE location area controlled by the core network, is generally called a Tracking Area (TA).
  • TA Tracking Area
  • the core network always configures a TA list (TAI list) for the UE through a non-access stratum (NAS, Non Access Stratum) message.
  • NAS Non Access Stratum
  • the UE stores the TAI List configured by the core network, and when a cell (the terminal is in an idle state) or an access (the terminal is in a connected state), the system message of the cell air interface broadcast is read, and the information is obtained from the TAI, if the TAI The UE does not store the TAI list, and the UE initiates a Tracking Area Update (TAU) process, and acquires a new TAI List by interacting with the NAS signaling of the core network.
  • TAU Tracking Area Update
  • the UE Before the inactive state is introduced, the UE has only the idle state and the connected state.
  • the location area of the UE in the idle state is the TA, and the location area in the connected state is the cell.
  • a RAN level location area that is, a RAN notification area (RNA, RAN Notification Area) is introduced for the UE.
  • the RNA can contain multiple cells.
  • the RAN network side node NR base station (gNB) may send a notification message to find the UE under multiple cells in the RNA area. After the UE moves out of an RNA, an RNA update is required so that the RAN network side node can find the UE.
  • TA and RNA are UE location areas maintained by the core network node and the RAN node, respectively, and their functions are to enable the core network node and the RAN node to perform location area tracking on the UE.
  • the core network searches for the UE by sending a paging message in all cells in the TAI list area of the UE; the UE is in an inactive state, and the RAN node gNB sends a notification in all cells under the RNA region. The notification looks for the UE.
  • inter-radio access technology (inter-RAT) network architecture of NR and eLTE/LTE is described below.
  • the NR base station gNB and the eLTE base station eLTE eNB are both connected to a 5G core network (NGC, NextGen Core). It can be seen that both the gNB and the eNB are connected to the NGC through a user plane (UP) interface and a control plane (CP) interface.
  • NGC 5G core network
  • UP user plane
  • CP control plane
  • the NR base station gNB is connected to the 5G core network NGC, and the LTE base station LTE eNB is connected to the 4G core network Evolved Packet Core (EPC).
  • EPC Evolved Packet Core
  • Both of the above architectures provided in Figures 2 and 3 are inter-RAT architectures.
  • an inactive terminal moves from the NR to the LTE/eLTE network, it is the mobile behavior performed under the above two network architectures. Since there is currently no relevant standardization content for this, the behavior of the UE is uncertain.
  • the related technology only defines the inactive state of the NR system.
  • the UE in the inactive state moves from the NR system to other communication systems (such as the LTE/eLTE system)
  • the terminal Since the other communication systems have no inactive state, the terminal The inactive state will not be maintained. At this time, the behavior of the terminal is uncertain and cannot work normally.
  • the embodiments of the present disclosure provide a mobility management method, a core network device, and a base station between the radio access networks, to implement mobility management after the UE in the inactive state enters the eLTE/LTE network from the NR network.
  • a method for managing mobility between radio access networks where the radio access network includes a first radio access network RAN and a second RAN, where the first RAN is a RAN of a new air interface NR system,
  • the method is characterized in that the method comprises:
  • the terminal in the inactive state detects that the terminal accesses from the first RAN to the second RAN;
  • the terminal switches its own state from the inactive state to the idle state, and continues to locally retain the user context information when the terminal is in an inactive state in the NR system.
  • the method further includes:
  • the terminal If the terminal detects that the terminal re-accesses the first RAN, it switches its state back to the inactive state, and restores the user context information when the terminal is in the inactive state in the NR system.
  • the second RAN is a RAN of the eLTE system
  • the method further includes:
  • the terminal sends the prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system to the network side, where
  • the prompt information is a current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station;
  • the terminal After the uplink signaling process triggers the establishment of the RRC connection process, or after receiving the paging message sent by the network side after the end of the uplink signaling process, the terminal deletes the locally reserved terminal in the NR system. User context information when inactive.
  • the second RAN is a RAN of the eLTE system
  • the method further includes:
  • the terminal sends, to the network side, prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system, where the prompt is sent.
  • the information is the current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station;
  • the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system.
  • the second RAN is a RAN of the LTE system
  • the method further includes:
  • the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system, and the terminal is saved in the NR system to be inactive.
  • the prompt information of the first base station of the user context information is sent to the network side, where the prompt information is the current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or the first base station Logo.
  • the method further includes:
  • the terminal starts a timer pre-configured by the NR system
  • the terminal Before the timer expires, if the terminal detects that the terminal reconnects back to the first RAN, the timer is stopped, the state is switched back to the inactive state, and the terminal is restored to be in the NR system.
  • User context information when inactive if the terminal detects that the terminal reconnects back to the first RAN, the timer is stopped, the state is switched back to the inactive state, and the terminal is restored to be in the NR system.
  • the terminal After the timer expires, the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system.
  • the second RAN is a RAN of the eLTE system
  • the step of the terminal switching its own state from the inactive state to the idle state if the timer expires, the terminal is in the first
  • the uplink signaling process is initiated in the RAN, and the method further includes:
  • the terminal sends the prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system to the network side, where
  • the prompt information is a current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station;
  • the terminal After the uplink signaling process triggers the establishment of the RRC connection process, or after receiving the paging message sent by the network side after the end of the uplink signaling process, the terminal deletes the locally reserved terminal in the NR system. User context information when inactive.
  • the second RAN is a RAN of the eLTE system, and after the step of the terminal switching its own state from the inactive state to the idle state, if the timer expires, the terminal is in the first
  • the second RAN initiates an uplink service process, where the method further includes:
  • the terminal sends, to the network side, prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system, where the prompt is sent.
  • the information is the current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station;
  • the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system.
  • the second RAN is a RAN of the LTE system
  • the method further includes:
  • the terminal deletes the user context information when the locally reserved terminal is in an inactive state in the NR system, and the The prompt information of the first base station of the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is the current terminal identifier of the terminal or inactive associated with the user context information. State terminal identifier, or the identity of the first base station.
  • the method further includes:
  • the terminal initiates a RAN level location area RNA update process for RNA update.
  • the embodiment of the present disclosure further provides a mobility management method between radio access networks, where the radio access network includes a first radio access network RAN and a second RAN, where the first RAN is a new air interface NR system.
  • RAN the second RAN is a RAN of an eLTE system, and the method includes:
  • the first core network of the NR system receives a paging failure message sent by the first base station in the first RAN when the RAN level location area RNA cannot be paged to the first terminal in the inactive state, the first
  • the base station is a base station that stores user context information of the first terminal in the NR system;
  • the first core network initiates paging to the first terminal in a location area TA at a core network level.
  • the prompt information is used to prompt the a second base station in the first RAN, where the second base station is a base station that stores user context information of the second terminal in the NR system;
  • the first core network continues to maintain the control plane interface NG2 connection of the second terminal in the NR system and the user plane interface GN3 according to the prompt information, and sends a second base station to notify the second base station. A notification message of the connection of the second terminal is continued.
  • the method further includes:
  • the first core network releases a connection between the second terminal and the eLTE system.
  • the method further includes:
  • the first core network When the downlink service of the second terminal arrives, the first core network directly performs paging in the second RAN of the eLTE system, and after receiving the paging response message of the second terminal, the second core network Transmitting, by the NR2, the NG2 connection and the GN3 connection in the NR system, transferring from the first base station to the corresponding base station in the second RAN, and transmitting, to the second base station, a connection for notifying the second base station to release the second terminal, and A notification message of user context information when the second terminal is in an inactive state in the NR system is deleted.
  • the method further includes:
  • the first core network connects the control plane interface NG2 connection of the third terminal in the NR system with the user plane interface GN3 according to the prompt information, transfers to the corresponding base station in the second RAN, and sends the signal to the third base station. a notification message for notifying the third base station to release the connection of the third terminal and deleting user context information when the third terminal is in an inactive state in the NR system.
  • the RRC connection establishment process is triggered when the third terminal initiates an uplink signaling process, or is triggered when an uplink service process is initiated.
  • the embodiment of the present disclosure further provides another mobility management method between radio access networks, where the radio access network includes a first radio access network RAN and a second RAN, where the first RAN is a new air interface NR system.
  • RAN the second RAN is a RAN of an LTE system, and the method includes:
  • the first core network of the NR system receives a prompt message sent by the terminal in the second RAN during the RRC connection establishment process, where the prompt information is used to prompt the first base station in the first RAN, the first
  • the base station is a base station that stores user context information of the terminal in the NR system;
  • the first core network sends, according to the prompt information, a notification to the first base station for notifying the first base station to release the connection of the terminal and deleting user context information when the terminal is in an inactive state in the NR system. Message.
  • the first core network further receives the prompt message forwarded by the EPC by using an interface with an EPC of the LTE system.
  • the embodiment of the present disclosure further provides a mobility management method between the radio access networks, where the radio access network includes a first radio access network RAN and a second RAN, where the first RAN is a new air interface NR system.
  • RAN the second RAN is a RAN of an eLTE system, and the method includes:
  • a first base station in the first RAN initiating paging of a first terminal in an inactive state within a location area RNA of a RAN level, the first base station preserving that the second terminal is in the NR system User context information when inactive;
  • the first RAN cannot page the first terminal in the RNA, send a paging failure message sent to the first core network of the NR system indicating that the first terminal cannot be paged in the RNA. .
  • the method includes:
  • the first base station starts a timer according to the notification message, and maintains the connection of the second terminal in the NR system before the timer expires, leaving the second terminal in an inactive state in the NR system.
  • Time user context information and, after the timer expires, releasing the connection of the second terminal and deleting user context information when the second terminal is in an inactive state in the NR system.
  • the method includes:
  • the first base station releases the connection of the second terminal according to the notification message and deletes user context information when the second terminal is in an inactive state in the NR system.
  • the embodiment of the present disclosure further provides a mobility management method between the radio access networks, where the radio access network includes a first radio access network RAN and a second RAN, where the first RAN is a new air interface NR system.
  • RAN the second RAN is a RAN of an LTE system, and the method includes:
  • the first base station of the NR system receives a connection sent by the first core network of the NR system to notify the first base station to release the terminal, and deletes the user when the terminal is in an inactive state in the NR system. Notification message of context information;
  • the first base station releases the connection of the terminal according to the notification message and deletes user context information when the terminal is in an inactive state in the NR system.
  • the embodiment of the present disclosure further provides a terminal, where the terminal includes:
  • the first detecting unit is configured to detect that the local terminal accesses the first RAN to the second RAN when the terminal is in an inactive state, where the first RAN is the RAN of the new air interface NR system;
  • a first switching unit configured to: the terminal switches its own state from the inactive state to an idle state, and continues to locally retain user context information when the terminal is in an inactive state in the NR system.
  • the above terminals also include:
  • a second detecting unit configured to detect that the terminal reconnects back to the first RAN
  • a second switching unit configured to: when the second detecting unit detects that the terminal reconnects back to the first RAN, switches the state to the inactive state, and restores the user that the terminal is in the inactive state in the NR system. Contextual information.
  • the second RAN is a RAN of an eLTE system, and the terminal further includes:
  • a first signaling initiation unit configured to initiate an uplink signaling process in the second RAN after the terminal state is switched from the inactive state to the idle state, and trigger an establishment of an RRC connection process in the uplink signaling process
  • the terminal sends the prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system to the network side, where the prompt information is the current terminal identifier of the terminal, or An inactive state terminal identifier associated with the user context information, or an identifier of the first base station; and, in the process of triggering establishment of an RRC connection by the uplink signaling process, or receiving a network after the end of the uplink signaling process
  • the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system.
  • the second RAN is a RAN of an eLTE system, and the terminal further includes:
  • a first service initiating unit configured to initiate an uplink service process in the second RAN after the terminal state is switched from the inactive state to the idle state, and trigger the establishment of the RRC connection process in the uplink service process
  • the terminal sends the prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system to the network side, where the prompt information is the current terminal identifier of the terminal, or The inactive state terminal identifier associated with the user context information, or the identifier of the first base station; and, in the process of triggering the establishment of the RRC connection by the uplink service procedure, the terminal deleting the locally reserved terminal is inactive in the NR system User context information.
  • the second RAN is a RAN of the LTE system, and the terminal further includes:
  • a first connection establishing unit configured to delete a user that is temporarily inactive in the NR system if the RRC connection establishment process is initiated after the terminal state is switched from the inactive state to the idle state
  • the context information, and the prompt information of the first base station that stores the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is the current terminal identifier of the terminal, or An inactive state terminal identifier associated with the user context information, or an identity of the first base station.
  • the above terminals also include:
  • a timing processing unit configured to start a timer pre-configured by the NR system after switching the terminal state from the inactive state to the idle state; and if the terminal detects the current before the timer expires After the terminal re-accesses back to the first RAN, the timer is stopped, the state is switched back to the inactive state, and the user context information when the terminal is in the inactive state in the NR system is restored; the timer expires After that, the user context information when the terminal that is locally reserved is in an inactive state in the NR system is deleted.
  • the second RAN is a RAN of an eLTE system, and the terminal further includes:
  • a second signaling initiation unit configured to: after the step of switching the terminal state from the inactive state to the idle state, if the uplink signaling process is initiated in the second RAN before the timer expires,
  • the prompting information of the first base station that stores the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is a current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station; and, in the process of triggering establishment of an RRC connection by the uplink signaling process, or in the uplink
  • the user context information when the terminal reserved in the NR system is in an inactive state is deleted.
  • the second RAN is a RAN of an eLTE system, and the terminal further includes:
  • a second service initiating unit configured to: after the terminal state is switched from the inactive state to the idle state, if an uplink service process is initiated in the second RAN before the timer expires, the uplink service process is performed.
  • the prompt information of the first base station that saves the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is the current terminal identifier of the terminal. Or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station; and, in the process of triggering the establishment of the RRC connection by the uplink service procedure, deleting the locally reserved terminal is in the NR system User context information when inactive.
  • the second RAN is a RAN of the LTE system, and the terminal further includes:
  • a second connection establishing unit configured to: after the timer state is switched from the inactive state to the idle state, if the RRC connection establishment process is initiated before the timer expires, deleting the locally reserved terminal in the NR system
  • the user context information in the inactive state, and the prompt information of the first base station that stores the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is The current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station.
  • the terminal further includes:
  • an updating unit configured to initiate a RAN-level location area RNA update process to perform RNA update after switching the terminal state back to the inactive state.
  • the embodiment of the present disclosure further provides a first core network of a new air interface NR system, including:
  • a first receiving unit configured to receive, by the first base station in the first RAN, a paging failure message that is sent when the first terminal in the inactive state cannot be paged in the location area RNA of the RAN level, where the first base station is a base station storing the user context information of the first terminal in the NR system, where the first RAN is a RAN of the new air interface NR system;
  • the first paging unit is configured to initiate paging to the first terminal in a location area TA at a core network level.
  • the above first core network also includes:
  • a second receiving unit configured to receive a prompt information sent by the second terminal in the second RAN in the RRC connection establishment process triggered by the uplink signaling process, where the prompt information is used to prompt the second in the first RAN a base station, the second base station is a base station that stores user context information of the second terminal in the NR system, and the second RAN is a RAN of an eLTE system;
  • a first processing unit configured to continue to maintain the connection between the control plane interface NG2 and the user plane interface GN3 of the second terminal in the NR system according to the prompt information, and send a notification to the second base station to notify the The second base station continues to maintain the notification message of the connection of the second terminal.
  • the above first core network also includes:
  • connection release unit configured to release a connection between the second terminal and the eLTE system after the uplink signaling process of the second terminal ends.
  • the above first core network also includes:
  • a first paging unit configured to: after the connection release unit releases the connection between the second terminal and the eLTE system, if the downlink service of the second terminal arrives, directly in the second eLTE system Paging in the RAN, and after receiving the paging response message of the second terminal, connecting the NG2 connection and the GN3 connection of the second terminal in the NR system, and transferring from the first base station to the corresponding in the second RAN And the base station sends, to the second base station, a notification message for notifying the second base station to release the connection of the second terminal and deleting user context information when the second terminal is in an inactive state in the NR system.
  • the above first core network also includes:
  • a third receiving unit configured to receive a prompt message sent by the third terminal in the second RAN in the RRC connection setup process, where the prompt information is used to prompt the third base station in the first RAN
  • the third The base station is a base station that stores user context information of the third terminal in the NR system
  • the first core network further includes:
  • a second processing unit configured to connect, according to the prompt information, the control plane interface NG2 connection in the NR system with the user plane interface GN3, and transfer to the corresponding base station in the second RAN, and
  • the third base station sends a notification message for notifying the third base station to release the connection of the third terminal and deleting user context information when the third terminal is in an inactive state in the NR system.
  • the RRC connection establishment process of the first core network is triggered when the third terminal initiates the uplink signaling process, or is triggered when the uplink service process is initiated.
  • the embodiment of the present disclosure further provides a first core network of a new air interface NR system, including:
  • a first receiving unit configured to receive a prompt information that is sent by the terminal in the second RAN in the RRC connection setup process, where the prompt information is used to prompt the first base station in the first RAN, where the first base station is a base station storing user context information of the terminal in the NR system, where the second RAN is a RAN of an LTE system;
  • a first sending unit configured to send, to the first base station, a notification message for notifying the first base station to release the connection of the terminal and deleting user context information when the terminal is in an inactive state in the NR system.
  • the first receiving unit further receives the prompt message forwarded by the EPC by using an interface with an EPC of the LTE system.
  • the embodiment of the present disclosure further provides a first base station of a radio access network of a new air interface NR system, including:
  • a paging unit configured to initiate paging to a first terminal in an inactive state within a RAN level location area RNA in the first RAN, where the first base station saves the second terminal in the NR system User context information when inactive state, the first RAN is the RAN of the new air interface NR system;
  • a first sending unit configured to: if the first RAN fails to page to the first terminal in the RNA, send a message to the first core network of the NR system that the first terminal cannot be paged in the RNA A paging failure message sent.
  • the above first base station further includes:
  • a first receiving unit configured to receive, by the first core network, a notification message for notifying the first base station to continue to maintain the connection of the second terminal;
  • a first processing unit configured to start a timer according to the notification message, and maintain a connection of the second terminal in the NR system before the timer expires, leaving the second terminal in the NR system User context information when in an inactive state, and, after the timer expires, releasing the connection of the second terminal and deleting user context information when the second terminal is in an inactive state in the NR system.
  • the above first base station further includes:
  • a second receiving unit configured to receive, by the first core network, a user context for notifying the first base station to release the second terminal, and deleting a user context when the second terminal is in an inactive state in the NR system Notification message of information;
  • a second processing unit configured to release the connection of the second terminal according to the notification message, and delete user context information when the second terminal is in an inactive state in the NR system.
  • the embodiment of the present disclosure further provides a first base station of a radio access network of a new air interface NR system, including:
  • a receiving unit configured to receive, by the first core network of the NR system, a notification for notifying the first base station to release a connection of the terminal and deleting user context information when the terminal is in an inactive state in the NR system Message
  • a releasing unit configured to release the connection of the terminal according to the notification message and delete user context information when the terminal is in an inactive state in the NR system.
  • the mobility management method, the core network device, and the base station between the radio access networks provided by the embodiments of the present disclosure still retain the terminal in the NR when the terminal in the inactive state moves between different systems.
  • the user context information in the inactive state of the system is deleted until the user context information is satisfied.
  • the present disclosure can implement inter-RAT mobility management of terminals in an inactive state, solve mobility problems between different systems, and enable the terminal to work normally.
  • FIG. 1 is a schematic diagram of a network architecture of a related art NextGen network
  • FIG. 2 is a schematic diagram of an inter-RAT network architecture of a related art eLTE and NR;
  • FIG. 3 is a schematic diagram of an inter-RAT network architecture of LTE and NR according to related technologies
  • FIG. 4 is a schematic flowchart of a mobility management method applied to a terminal according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of a mobility management method applied to an NR core network according to an embodiment of the present disclosure
  • FIG. 6 is another schematic flowchart of a mobility management method applied to an NR core network according to an embodiment of the present disclosure
  • FIG. 7 is still another schematic flowchart of a mobility management method applied to an NR core network according to an embodiment of the present disclosure
  • FIG. 8 is a schematic flowchart of a mobility management method applied to an NR base station according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 10 is another schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a core network of an NR system according to an embodiment of the present disclosure.
  • FIG. 12 is another schematic structural diagram of a core network of an NR system according to an embodiment of the present disclosure.
  • FIG. 13 is still another schematic structural diagram of a core network of an NR system according to an embodiment of the present disclosure.
  • FIG. 14 is still another schematic structural diagram of a core network of an NR system according to an embodiment of the present disclosure.
  • 15 is a schematic structural diagram of a base station of an NR system according to an embodiment of the present disclosure.
  • 16 is another schematic structural diagram of a base station of an NR system according to an embodiment of the present disclosure.
  • FIG. 17 is still another schematic structural diagram of a base station of an NR system according to an embodiment of the present disclosure.
  • FIG. 18 is still another schematic structural diagram of a base station of an NR system according to an embodiment of the present disclosure.
  • FIG. 19 is a schematic diagram of a scenario of Example 1 according to an embodiment of the present disclosure.
  • FIG. 20 is a schematic diagram of a scenario of Example 5 according to an embodiment of the present disclosure.
  • the embodiment of the present disclosure provides a mobility management method between RANs, which is applied between RANs based on different RATs.
  • the RAN includes a first RAN and a second RAN, where the first RAN is a new air interface NR.
  • the RAN of the system, the second RAN may be the RAN of the 3G system or the 4G system, or may be the RAN of the LTE system or the eLTE system.
  • the following embodiments of the present invention will be mainly described by taking an LTE system and an eLTE system as an example. It should be noted that the second RAN of the embodiment of the present disclosure is not limited to the RAN of the LTE system and the eLTE system.
  • the mobility management method provided by the embodiment of the present disclosure when applied to the terminal side, includes the following steps:
  • Step 41 The terminal in the inactive state detects that the local terminal accesses from the first RAN to the second RAN.
  • the first RAN is the RAN of the NR system
  • the terminal enters an inactive state in the first RAN, and the terminal may subsequently move and enter the second RAN based on different RATs.
  • the second RAN may be the RAN of the 3G/4G/LTE/eLTE system.
  • the terminal moves to and accesses the second RAN, it can determine that the first RAN has been left and the second RAN based on different RATs is accessed by reading a system message broadcasted by the cell air interface.
  • Step 42 The terminal switches its own state from the inactive state to an idle state, and continues to locally retain user context information when the terminal is in an inactive state in the NR system.
  • the terminal switches its state to the idle state (RRC-IDLE), and continues to reserve the terminal in the terminal locally at the NR.
  • User context information when the system is in an inactive state.
  • the foregoing context information may include one or more of the following information: a radio resource configuration parameter, a security parameter, a UE capability parameter, and the like.
  • the embodiment of the present disclosure defines the behavior of the terminal in the inactive state leaving the first RAN of the NR system and entering the second RAN based on different RATs, whereby the terminal can adopt the idle working under the second RAN. State, so that the terminal can work normally.
  • the terminal will retain the user context information when it is in the inactive state in the NR system, so as to quickly return to the inactive state when returning to the NR system. For example, when the terminal detects that the terminal re-accesses the first RAN, the terminal may switch its state back to the inactive state, and restore the user context information when the terminal is in the inactive state in the NR system.
  • the base station may change when the terminal re-accesses the first RAN, and is no longer the first base station when the first RAN is left. At this time, the terminal may also initiate the RAN level after switching its own state back to the inactive state.
  • the location region RNA update process performs RNA updates so that the RAN network side node can find the UE.
  • the terminal resides in the second RAN in an idle state.
  • Subsequent terminals may have different behaviors in the second RAN.
  • the terminal may initiate an uplink signaling process or an uplink service process.
  • the terminal may need to establish an RRC connection with the network. The behavior of the terminal of the embodiment of the present disclosure in the above process will be described below.
  • the terminal When the second RAN is the RAN of the eLTE system, after the foregoing step 42, the terminal camps in the second RAN in an idle state. If the terminal initiates an uplink signaling procedure in the second RAN, the uplink signaling is performed. During the process of triggering the establishment of the RRC connection, the terminal may send the prompt information of the first base station that stores the user context information of the terminal in the inactive state of the NR system to the network side, where the prompt information may be The current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station.
  • the prompt information is provided to the network side, and the network side may be configured to determine the first base station based on the prompt information, and notify the first base station to delete the context information of the terminal.
  • the eLTE base station eNB may directly send the prompt information sent by the user to the NGC, and the NGC notifies the first base station to delete the context information of the terminal.
  • the terminal may also delete the locally reserved terminal.
  • User context information in the NR system when it is in an inactive state.
  • the terminal When the second RAN is the RAN of the eLTE system, after the above step 42, the terminal resides in the second RAN in an idle state. If the terminal initiates an uplink service process in the second RAN, the terminal may save the user context information when the terminal is in an inactive state in the NR system during the process of triggering the establishment of the RRC connection by the uplink service process.
  • the prompt information of the first base station is sent to the network side, and the prompt information is a current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station.
  • the prompt information is provided to the network side, and the network side may be configured to determine the first base station based on the prompt information, and notify the first base station to delete the context information of the terminal.
  • the eLTE base station eNB may directly send the prompt information sent by the user to the NGC, and the NGC notifies the first base station to delete the context information of the terminal.
  • the terminal may also delete the user context information when the terminal that is locally reserved is in an inactive state in the NR system.
  • the terminal When the second RAN is the RAN of the LTE system, after the above step 42, the terminal resides in the second RAN in an idle state. If the terminal initiates an RRC connection setup process, the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system, and the terminal is saved in the NR system.
  • the prompt information of the first base station of the current user context information is sent to the network side, where the prompt information is the current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or the first base station Logo.
  • the prompt information is provided to the network side, and the network side may be configured to determine the first base station based on the prompt information, and notify the first base station to delete the context information of the terminal.
  • the eNB of the LTE may send the prompt information sent by the user to the EPC, and the EPC forwards the information to the NGC, and then the NGC notifies the first base station to delete the context information of the terminal.
  • an effective time timer for user context information may be further set, and the timer is based on a predetermined timeout period, and after the timeout period is reached or exceeded, the terminal is triggered. And the network side deletes user context information when the terminal is in an inactive state in the NR system.
  • the terminal After the above step 42, after the step of the terminal switching its state from the inactive state to the idle state, the terminal starts a timer pre-configured by the NR system. Before the timer expires, if the terminal detects that the terminal reconnects back to the first RAN, the timer is stopped, the state is switched back to the inactive state, and the terminal is restored to be in the NR system. User context information when inactive. After the timer expires, the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system.
  • the terminal When the timer is started and camped in the second RAN in an idle state, the terminal may have different behavior in the second RAN before the timer expires. For example, the terminal may initiate an uplink signaling process or an uplink service process. In the foregoing process, the terminal may need to establish an RRC connection with the network.
  • the behavior of the terminal of the embodiment of the present disclosure in the above process will be described below.
  • the terminal When the second RAN is the RAN of the eLTE system, after the above step 42, the terminal camps in the second RAN in an idle state, and if the terminal initiates uplink signaling in the second RAN before the timer expires
  • the process in the process of triggering the establishment of the RRC connection by the uplink signaling process, the terminal sends the prompt information of the first base station that saves the user context information of the terminal in the inactive state in the NR system to the network side.
  • the prompt information is a current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station.
  • the prompt information is provided to the network side, and the network side may be configured to determine the first base station based on the prompt information, and notify the first base station to delete the context information of the terminal.
  • the eLTE base station eNB may directly send the prompt information sent by the user to the NGC, and the NGC notifies the first base station to delete the context information of the terminal.
  • the terminal deletes the local The user context information of the reserved terminal when it is in an inactive state in the NR system.
  • the terminal When the second RAN is the RAN of the eLTE system, after the foregoing step 42, the terminal camps in the second RAN in an idle state, and if the terminal initiates uplink in the second RAN before the timer expires In the process of the RRC connection, the terminal sends the prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system to the network side.
  • the prompt information is a current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station.
  • the eLTE base station eNB may directly send the prompt information sent by the user to the NGC, and the NGC notifies the first base station to delete the context information of the terminal.
  • the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system.
  • the terminal When the second RAN is the RAN of the LTE system, after the foregoing step 42, the terminal camps in the second RAN in an idle state, and before the timer expires, if the terminal initiates an RRC connection establishment process, The terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system, and the prompt of the first base station that stores the user context information when the terminal is in an inactive state in the NR system.
  • the information is sent to the network side, where the prompt information is the current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station.
  • the eNB of the LTE may send the prompt information sent by the user to the EPC, and the EPC forwards the information to the NGC, and then the NGC notifies the first base station to delete the context information of the terminal.
  • the mobility management method in which the terminal in the inactive state enters other RANs is described above.
  • the mobility management method described above will be further explained from the core network side of the NR system.
  • the core network behavior on the NR side will be described below with respect to the application scenario shown in FIG. 2.
  • a mobility management method between radio access networks RAN where the RAN includes a first RAN and a second RAN.
  • the first RAN is the RAN of the NR system
  • the second RAN is the RAN of the eLTE.
  • the mobility management method is applied to the first core network side of the NR system, and includes the following steps:
  • Step 51 The first core network of the NR system receives a paging failure message sent by the first base station in the first RAN when the RAN level location area RNA cannot be paged to the first terminal in the inactive state.
  • the first base station is a base station that stores user context information of the first terminal in the NR system.
  • Step 52 The first core network initiates paging to the first terminal in a location area TA at a core network level.
  • the first base station that stores the user context information of the first terminal in the NR system is in all the cells in the RNA area of the first terminal. Send a notification message (notification) to find the UE. If the paging fails, it indicates that the first terminal may leave the first RAN, then in step 52, the first core network further initiates paging to the first terminal in the location area TA of the core network level.
  • paging of the first terminal may be performed after the first terminal in the inactive state leaves the first RAN.
  • the terminal in the inactive state may leave the first RAN and access the second RAN, and the second terminal may initiate an uplink signaling process, where During the RRC connection establishment process triggered by the uplink signaling process, the second terminal may send prompt information to the network side to indicate that the network side stores the base station of the user context information of the terminal in the NR system.
  • the terminal in the inactive state may leave the first RAN and access the second RAN, and the second terminal may initiate an uplink signaling process, where During the RRC connection establishment process triggered by the uplink signaling process, the second terminal may send prompt information to the network side to indicate that the network side stores the base station of the user context information of the terminal in the NR system.
  • the first core network of the NR system in the embodiment of the present disclosure may further receive the prompt information sent by the second terminal in the second RAN in the RRC connection establishment process triggered by the uplink signaling process, where the prompt information is used for prompting a second base station in the first RAN, where the second base station is a base station that stores user context information of the second terminal in the NR system.
  • the first core network can learn that the second terminal has left the first RAN and enters the second RAN. At this time, the first core network continues to maintain the second terminal in the NR system according to the prompt information.
  • the control plane interface NG2 connection is connected to the user plane interface GN3, and a notification message for notifying the second base station to continue to maintain the connection of the second terminal is sent to the second base station.
  • the first core network may release a connection between the second terminal and the eLTE system.
  • the first core network may directly page in the second RAN of the eLTE system, and after receiving the paging response message of the second terminal,
  • the second terminal is in the NR system, the NG2 connection and the GN3 connection are transferred from the first base station to the corresponding base station (Pathswitch) in the second RAN, and a second base station is sent to notify the second base station to release the A connection of the second terminal and a notification message for deleting user context information when the second terminal is in an inactive state in the NR system.
  • the first core network in the uplink signaling process initiated by the second terminal, receives the prompt information, and learns that the second terminal has left the first RAN and enters the second RAN, at this time, the first core network can directly switch the interface path (Pathswitch) of the second terminal, and does not need to wait for the downlink service of the second terminal to arrive, that is, after the first core network receives the prompt information, And connecting the NG2 connection and the GN3 connection in the NR system, transferring from the first base station to a corresponding base station (Pathswitch) in the second RAN, and sending a second base station to notify the second base station And releasing a connection message of the second terminal and deleting a notification message of user context information when the second terminal is in an inactive state in the NR system.
  • the interface path Pathswitch
  • the terminal in the inactive state may leave the first RAN and access the second RAN, and the third terminal may initiate an uplink service process.
  • the third terminal may send prompt information to the network side to indicate that the network side stores the base station of the user context information of the terminal in the NR system.
  • the first core network of the NR system in the embodiment of the present disclosure may further receive a prompt message sent by the third terminal in the second RAN during the RRC connection establishment process, where the prompt information is used to prompt the first
  • the third base station in the RAN is a base station that stores user context information of the third terminal in the NR system.
  • the RRC connection establishment process is triggered when the third terminal initiates an uplink signaling process, or is triggered when an uplink service process is initiated.
  • the first core network may connect the control plane interface NG2 connection of the third terminal in the NR system with the user plane interface GN3, and transfer to the corresponding base station in the second RAN, and
  • the third base station sends a notification message for notifying the third base station to release the connection of the third terminal and deleting user context information when the third terminal is in an inactive state in the NR system.
  • a mobility management method between radio access networks RAN where the RAN includes a first RAN and a second RAN.
  • the first RAN is the RAN of the NR system
  • the second RAN is the RAN of the LTE.
  • the mobility management method is applied to the first core network side of the NR system, and includes the following steps:
  • Step 61 The first core network of the NR system receives a prompt message sent by the terminal in the second RAN in the RRC connection establishment process, where the prompt information is used to prompt the first base station in the first RAN.
  • the first base station is a base station that stores user context information of the terminal in the NR system.
  • the RRC connection establishment process may be triggered when the first terminal initiates the uplink signaling process, or triggered when the uplink service process is initiated, or may be triggered by the network side to discover the downlink signaling/service process.
  • the first core network may receive the prompt message forwarded by the EPC by using an interface with an EPC of the LTE system.
  • Step 62 The first core network sends, according to the prompt information, a first user base to notify the first base station to release the connection of the terminal, and delete the user context when the terminal is in an inactive state in the NR system. Notification message for information.
  • the first core network after receiving the prompt message forwarded by the EPC of the LTE system, may instruct the first base station to release the connection of the terminal and delete the user context information of the first terminal, thereby implementing inactive
  • the terminal of the state enters the mobility management after the RAN of the LTE.
  • a mobility management method between radio access networks RAN where the RAN includes a first RAN and a second RAN.
  • the first RAN is the RAN of the NR system
  • the second RAN is the RAN of the eLTE.
  • the mobility management method is applied to the first RAN side of the NR system, and includes the following steps:
  • Step 71 The first base station in the first RAN initiates paging to the first terminal in the inactive state in the location area RNA of the RAN level, where the first base station saves the first terminal in the NR User context information when the system is in an inactive state.
  • Step 72 If the first RAN cannot page the first terminal in the RNA, send a message to the first core network of the NR system that indicates that the first terminal cannot be paged in the RNA. Call the failure message.
  • the first RAN fails to page to the first terminal in the RNA, indicating that the first terminal may leave the first RAN.
  • the first base station sends a paging failure message to the core network, so that the core network can page the first terminal in the TA, and implement mobility management of the inactive terminal after entering the RAN of the e.LTE.
  • the first base station receives a notification message sent by the first core network to notify the first base station to continue to maintain the connection of the second terminal.
  • the first base station starts a timer according to the notification message, and maintains the connection of the second terminal in the NR system before the timer expires, leaving the second terminal in an inactive state in the NR system.
  • Time user context information and, after the timer expires, releasing the connection of the second terminal and deleting user context information when the second terminal is in an inactive state in the NR system.
  • a mobility management method between radio access networks RAN where the RAN includes a first RAN and a second RAN.
  • the first RAN is the RAN of the NR system
  • the second RAN is the RAN of the LTE.
  • the mobility management method is applied to the first RAN side of the NR system, and includes the following steps:
  • Step 81 The first base station of the NR system receives a connection sent by the first core network of the NR system to notify the first base station to release the terminal, and deletes the terminal in an inactive state in the NR system. Notification message for user context information.
  • Step 82 The first base station releases the connection of the terminal according to the notification message, and deletes user context information when the terminal is in an inactive state in the NR system.
  • the first base station directly releases the connection of the terminal and deletes the user context information when the terminal is in an inactive state in the NR system according to the notification message, so that the inactive terminal enters the RAN of the LTE. Mobility management.
  • some embodiments of the present disclosure provide a terminal that implements the above method.
  • the embodiment provides a terminal, including:
  • the first detecting unit 91 is configured to detect that the local terminal accesses from the first RAN to the second RAN when the terminal is in an inactive state, where the first RAN is the RAN of the new air interface NR system;
  • the first switching unit 92 is configured to switch the state of the terminal from the inactive state to the idle state, and continue to locally retain the user context information when the terminal is in an inactive state in the NR system.
  • the terminal may further include:
  • a second detecting unit configured to detect that the terminal reconnects back to the first RAN
  • a second switching unit configured to: when the second detecting unit detects that the terminal reconnects back to the first RAN, switches the state to the inactive state, and restores the user that the terminal is in the inactive state in the NR system. Contextual information.
  • the second RAN is a RAN of an eLTE system
  • the terminal further includes:
  • a first signaling initiation unit configured to initiate an uplink signaling process in the second RAN after the terminal state is switched from the inactive state to the idle state, and trigger an establishment of an RRC connection process in the uplink signaling process
  • the terminal sends the prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system to the network side, where the prompt information is the current terminal identifier of the terminal, or An inactive state terminal identifier associated with the user context information, or an identifier of the first base station; and, in the process of triggering establishment of an RRC connection by the uplink signaling process, or receiving a network after the end of the uplink signaling process
  • the terminal deletes the user context information when the terminal that is locally reserved is in an inactive state in the NR system.
  • the second RAN is a RAN of an eLTE system
  • the terminal further includes:
  • a first service initiating unit configured to initiate an uplink service process in the second RAN after the terminal state is switched from the inactive state to the idle state, and trigger the establishment of the RRC connection process in the uplink service process
  • the terminal sends the prompt information of the first base station that stores the user context information of the terminal in the inactive state in the NR system to the network side, where the prompt information is the current terminal identifier of the terminal, or The inactive state terminal identifier associated with the user context information, or the identifier of the first base station; and, in the process of triggering the establishment of the RRC connection by the uplink service procedure, the terminal deleting the locally reserved terminal is inactive in the NR system User context information.
  • the second RAN is a RAN of an LTE system
  • the terminal further includes:
  • a first connection establishing unit configured to delete a user that is temporarily inactive in the NR system if the RRC connection establishment process is initiated after the terminal state is switched from the inactive state to the idle state
  • the context information, and the prompt information of the first base station that stores the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is the current terminal identifier of the terminal, or An inactive state terminal identifier associated with the user context information, or an identity of the first base station.
  • the terminal further includes:
  • a timing processing unit configured to start a timer pre-configured by the NR system after switching the terminal state from the inactive state to the idle state; and if the terminal detects the current before the timer expires After the terminal re-accesses back to the first RAN, the timer is stopped, the state is switched back to the inactive state, and the user context information when the terminal is in the inactive state in the NR system is restored; the timer expires After that, the user context information when the terminal that is locally reserved is in an inactive state in the NR system is deleted.
  • the second RAN is a RAN of an eLTE system
  • the terminal further includes:
  • a second signaling initiation unit configured to: after the step of switching the terminal state from the inactive state to the idle state, if the uplink signaling process is initiated in the second RAN before the timer expires,
  • the prompting information of the first base station that stores the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is a current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station; and, in the process of triggering establishment of an RRC connection by the uplink signaling process, or in the uplink
  • the user context information when the terminal reserved in the NR system is in an inactive state is deleted.
  • the second RAN is a RAN of an eLTE system
  • the terminal further includes:
  • a second service initiating unit configured to: after the terminal state is switched from the inactive state to the idle state, if an uplink service process is initiated in the second RAN before the timer expires, the uplink service process is performed.
  • the prompt information of the first base station that saves the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is the current terminal identifier of the terminal. Or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station; and, in the process of triggering the establishment of the RRC connection by the uplink service procedure, deleting the locally reserved terminal is in the NR system User context information when inactive.
  • the second RAN is a RAN of an LTE system
  • the terminal further includes:
  • a second connection establishing unit configured to: after the timer state is switched from the inactive state to the idle state, if the RRC connection establishment process is initiated before the timer expires, deleting the locally reserved terminal in the NR system
  • the user context information in the inactive state, and the prompt information of the first base station that stores the user context information when the terminal is in the inactive state in the NR system is sent to the network side, where the prompt information is The current terminal identifier of the terminal, or an inactive state terminal identifier associated with the user context information, or an identifier of the first base station.
  • the terminal further includes:
  • an updating unit configured to initiate a RAN-level location area RNA update process to perform RNA update after switching the terminal state back to the inactive state.
  • this embodiment provides another terminal, including: a processor 101; a memory 103 connected to the processor 101 through a bus interface, and a transceiver 102 connected to the processor 101 through a bus interface.
  • the memory is for storing programs and data used by the processor when performing operations; transmitting control commands and the like through the transceiver 102; when the processor calls and executes programs and data stored in the memory , do the following:
  • the terminal When the terminal is in an inactive state, detecting that the terminal is accessing from the first RAN to the second RAN, where the first RAN is the RAN of the new air interface NR system;
  • the terminal switches its own state from the inactive state to the idle state, and continues to locally retain user context information when the terminal is in an inactive state in the NR system.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 101 and various circuits of memory represented by memory 103.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 102 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 101 is responsible for managing the bus architecture and general processing, and the memory 103 can store data used by the processor 101 in performing operations.
  • the processor 101 is responsible for managing the bus architecture and general processing, and the memory 103 can store data used by the processor 101 in performing operations.
  • some embodiments of the present disclosure provide a core network device of an NR system implementing the above method.
  • the embodiment provides a first core network of a new air interface NR system, including:
  • the first receiving unit 111 is configured to receive, by the first base station in the first RAN, a paging failure message that is sent when the first terminal in the inactive state is unable to be paged in the RAN level location area RNA, where the first base station sends
  • the first RAN is the RAN of the new air interface NR system.
  • the first paging unit 112 is configured to initiate paging to the first terminal in a location area TA at a core network level.
  • the first core network further includes:
  • a second receiving unit configured to receive a prompt information sent by the second terminal in the second RAN in the RRC connection establishment process triggered by the uplink signaling process, where the prompt information is used to prompt the second in the first RAN a base station, the second base station is a base station that stores user context information of the second terminal in the NR system, and the second RAN is a RAN of an eLTE system;
  • a first processing unit configured to continue to maintain the connection between the control plane interface NG2 and the user plane interface GN3 of the second terminal in the NR system according to the prompt information, and send a notification to the second base station to notify the The second base station continues to maintain the notification message of the connection of the second terminal.
  • the first core network further includes:
  • connection release unit configured to release a connection between the second terminal and the eLTE system after the uplink signaling process of the second terminal ends.
  • the first core network further includes:
  • a first paging unit configured to: after the connection release unit releases the connection between the second terminal and the eLTE system, if the downlink service of the second terminal arrives, directly in the second eLTE system Paging in the RAN, and after receiving the paging response message of the second terminal, connecting the NG2 connection and the GN3 connection of the second terminal in the NR system, and transferring from the first base station to the corresponding in the second RAN And the base station sends, to the second base station, a notification message for notifying the second base station to release the connection of the second terminal and deleting user context information when the second terminal is in an inactive state in the NR system.
  • the first core network further includes:
  • a third receiving unit configured to receive a prompt message sent by the third terminal in the second RAN in the RRC connection setup process, where the prompt information is used to prompt the third base station in the first RAN
  • the third The base station is a base station that stores user context information of the third terminal in the NR system
  • the first core network further includes:
  • a second processing unit configured to connect, according to the prompt information, the control plane interface NG2 connection in the NR system with the user plane interface GN3, and transfer to the corresponding base station in the second RAN, and
  • the third base station sends a notification message for notifying the third base station to release the connection of the third terminal and deleting user context information when the third terminal is in an inactive state in the NR system.
  • the RRC connection establishment process is triggered when the third terminal initiates an uplink signaling process, or is triggered when an uplink service process is initiated.
  • this embodiment provides another implementation of the first core network of the new air interface NR system, including: a processor 121; a memory 123 connected to the processor 121 through a bus interface, and a bus interface a transceiver 122 coupled to the processor 121; the memory for storing programs and data used by the processor in performing operations; transmitting control commands and the like through the transceiver 122;
  • a processor 121 a memory 123 connected to the processor 121 through a bus interface, and a bus interface a transceiver 122 coupled to the processor 121; the memory for storing programs and data used by the processor in performing operations; transmitting control commands and the like through the transceiver 122;
  • the first base station receives, by the first base station in the first RAN, a paging failure message sent when the first terminal in the inactive state cannot be paged in the location area RNA of the RAN level, where the first base station saves the first terminal
  • the base station of the user context information in the NR system, the first RAN is the RAN of the new air interface NR system.
  • the paging is initiated to the first terminal in a location area TA at the core network level.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 121 and various circuits of memory represented by memory 123.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 122 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 121 is responsible for managing the bus architecture and general processing, and the memory 123 can store data used by the processor 121 when performing operations.
  • the processor 121 is responsible for managing the bus architecture and general processing, and the memory 123 can store data used by the processor 121 when performing operations.
  • this embodiment provides a first core network of another new air interface NR system, including:
  • the first receiving unit 131 is configured to receive a prompt information that is sent by the terminal in the second RAN during the RRC connection establishment process, where the prompt information is used to prompt the first base station in the first RAN, where the first base station is saved.
  • a base station having user context information of the terminal in the NR system the first RAN is a RAN of an NR system, and the second RAN is a RAN of an LTE system.
  • the first sending unit 132 is configured to send, to the first base station, a notification message for notifying the first base station to release the connection of the terminal and deleting user context information when the terminal is in an inactive state in the NR system.
  • the first receiving unit 131 further receives the prompt message forwarded by the EPC by using an interface with an EPC of the LTE system.
  • this embodiment provides another implementation of the first core network of the new air interface NR system, including: a processor 141; a memory 143 connected to the processor 141 through a bus interface, and a bus interface a transceiver 142 coupled to the processor 141; the memory for storing programs and data used by the processor in performing operations; transmitting control commands and the like through the transceiver 142;
  • a processor 141 a memory 143 connected to the processor 141 through a bus interface, and a bus interface a transceiver 142 coupled to the processor 141; the memory for storing programs and data used by the processor in performing operations; transmitting control commands and the like through the transceiver 142;
  • a prompt information that is sent by the terminal in the RRC connection establishment process, where the prompt information is used to prompt the first base station in the first RAN, where the first base station is in the A base station that describes user context information in an NR system, the second RAN being a RAN of an LTE system.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 141 and various circuits of memory represented by memory 143.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 142 may be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 141 is responsible for managing the bus architecture and general processing, and the memory 143 can store data used by the processor 141 in performing operations.
  • the processor 141 is responsible for managing the bus architecture and general processing, and the memory 143 can store data used by the processor 141 in performing operations.
  • some embodiments of the present disclosure provide a base station of an NR system implementing the above method.
  • the embodiment provides a first base station of a new air interface NR system, including:
  • a paging unit 151 configured to initiate paging of a first terminal in an inactive state in a location area RNA of a RAN level in the first RAN, where the first base station saves the first terminal in the NR User context information when the system is in an inactive state, the first RAN is the RAN of the new air interface NR system.
  • the first sending unit 152 is configured to: if the first RAN fails to page to the first terminal in the RNA, send a message to the first core network of the NR system that the first page cannot be paged in the RNA Paging failure message sent by the terminal.
  • the first base station further includes:
  • a first receiving unit configured to receive, by the first core network, a notification message for notifying the first base station to continue to maintain the connection of the second terminal;
  • a first processing unit configured to start a timer according to the notification message, and maintain a connection of the second terminal in the NR system before the timer expires, leaving the second terminal in the NR system User context information when in an inactive state, and, after the timer expires, releasing the connection of the second terminal and deleting user context information when the second terminal is in an inactive state in the NR system.
  • the first base station further includes:
  • a second receiving unit configured to receive, by the first core network, a user context for notifying the first base station to release the second terminal, and deleting a user context when the second terminal is in an inactive state in the NR system Notification message of information;
  • a second processing unit configured to release the connection of the second terminal according to the notification message, and delete user context information when the second terminal is in an inactive state in the NR system.
  • this embodiment provides another implementation of the first base station of the new air interface NR system, including: a processor 161; a memory 163 connected to the processor 161 through a bus interface, and a bus interface a transceiver 162 to which the processor 161 is coupled; the memory for storing programs and data used by the processor when performing operations; transmitting control commands and the like by the transceiver 162; when the processor calls and executes the When programs and data are stored in memory, do the following:
  • the first base station Initiating paging of a first terminal in an inactive state within a RAN level location area RNA within the first RAN, the first base station retaining the second terminal in an inactive state in the NR system User context information, the first RAN is the RAN of the new air interface NR system.
  • the first RAN cannot page the first terminal in the RNA, send a paging failure message sent to the first core network of the NR system indicating that the first terminal cannot be paged in the RNA. .
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 161 and various circuits of memory represented by memory 163.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 162 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 161 is responsible for managing the bus architecture and general processing, and the memory 163 can store data used by the processor 161 in performing operations.
  • the processor 161 is responsible for managing the bus architecture and general processing, and the memory 163 can store data used by the processor 151 in performing operations.
  • a first base station of another new air interface NR system includes:
  • the receiving unit 171 is configured to receive, by the first core network of the NR system, a connection for notifying the first base station to release the terminal, and deleting user context information when the terminal is in an inactive state in the NR system. Notification message
  • the releasing unit 172 is configured to release the connection of the terminal according to the notification message and delete user context information when the terminal is in an inactive state in the NR system.
  • FIG. 18 still another implementation of a first base station of another new air interface NR system according to an embodiment of the present disclosure includes: a processor 181; a memory 183 connected to the processor 181 through a bus interface, and a bus through the bus a transceiver 182 having an interface coupled to the processor 181; the memory for storing programs and data used by the processor when performing operations; transmitting control commands by the transceiver 182, etc.; when the processor calls and executes When the program and data stored in the memory are executed, the following operations are performed:
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 181 and various circuits of memory represented by memory 183.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 182 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 181 is responsible for managing the bus architecture and normal processing, and the memory 183 can store data used by the processor 181 in performing operations.
  • the processor 181 is responsible for managing the bus architecture and general processing, and the memory 183 can store data used by the processor 181 in performing operations.
  • the scenario of the example 1 is that the terminal (UE) in the inactive state enters the RAN of the eLTE network from the RAN of the NR, and the UE initiates uplink signaling on the eLTE network.
  • the network architecture of the example 1 is as shown in FIG. 2 in the prior art.
  • the specific scenario is as shown in FIG. 19, the UE enters an inactive state when the NR, and both the gNB and the UE side reserve a set when the UE is in an inactive state in the NR system.
  • User context information (NR UE context).
  • the gNB can configure the UE with a valid time timer of the NR UE context. Thereafter, the UE enters the eLTE network from the NR network. Once the UE enters eLTE, the timer is started. If the gNB does not configure the timer or configure the timer to be infinite, the UE keeps the NR UE context.
  • the UE After the UE enters the eLTE network, it enters the idle state, still retains the NR UE context, and starts a valid timer (if any). If the UE returns to NR before the valid timer (if any) times out, the inactive state is directly restored and the NR UE context is restored. Optionally, the UE performs an RNA update on the NR. After the timer expires, the UE deletes the NR UE context.
  • the UE initiates a TAU procedure, which triggers an RRC connection setup procedure.
  • the UE adds the current UE identifier (such as S-TMSI) or the inactive UE ID associated with the NRUE context or The gNB identifier that holds the NR UE context is notified to the network, so that the NGC knows that the UE has entered the eLTE network.
  • the current UE identifier such as S-TMSI
  • the gNB identifier that holds the NR UE context is notified to the network, so that the NGC knows that the UE has entered the eLTE network.
  • the NGC can continue to maintain the connection between the gNB and the NGC, and notify the gNB to remain connected (the NGC finds the gNB based on the UE identity, or the inactive UE ID, or the gNB identifier that holds the NR UE context).
  • the NR base station starts a valid time timer of the NR UE context, maintains the NRUE context during the timer operation, and deletes the NR UE context after the timer expires.
  • the NGC releases the UE's connection at eLTE.
  • the NGC If the downlink service is to be sent to the UE, and the NGC knows that the UE does not return to the NR, the NGC directly pages in the eLTE, and after the UE responds to the paging, the NG2 and NG3 interfaces of the UE are transferred from the gNB to the eLTE.
  • the base station (such as establishing an associated interface in eLTE, and notifying the gNB to release the previous interface and deleting the NR UE context).
  • the UE stops the NR UE context timer (if any) and deletes the NR UE context.
  • the NGC After the NGC learns that the UE has entered the eLTE network, the NGC directly transfers the NG2 and NG3 interfaces of the UE from the gNB to the eLTE base station (for example, establishing an interface on eLTE, and notifying the gNB to release the previous interface and the NR UE. Context).
  • the UE initiates the RRC connection establishment, the NR UE context timer (if any) is stopped, and the NR UE context is deleted.
  • the scenario of the example 2 is that the inactive state UE enters the RAN of the eLTE network from the RAN of the NR, and the UE initiates an uplink service on the eLTE network.
  • Example 2 The network architecture and specific scenarios of Example 2 are the same as those of Example 1.
  • the UE enters an inactive state at the NR, and both the gNB and the UE side maintain a set of NR UE contexts.
  • the gNB can configure the UE with a valid time timer of the NR UE context, and once the UE enters the eLTE, the timer is started. If the gNB does not configure the timer or configure the timer to be infinite, the UE keeps the NR UE context.
  • the UE in the inactive state After entering the eLTE network from the NR network, the UE in the inactive state enters the idle state, still retains the UE context of the NR, and starts a valid timer (if any). If the UE returns to NR before the valid timer (if any) times out, the inactive state is directly restored, and the NR UE context is restored. Alternatively, the UE performs an RNA update at the NR. After the timer expires, the UE deletes the NR UE context.
  • the UE initiates an uplink data transmission process, triggering an RRC connection setup procedure, the eLTE base station accepts the RRC connection setup request of the UE, and establishes a connection with the NGC, and then the NGC NG2 of the UE
  • the NG3 interface is transferred from the gNB to the eLTE base station.
  • the UE initiates an RRC connection setup, it stops the NRUE context timer (if any) and deletes the NR UE context.
  • the scenario of example 3 is: the inactive state UE enters the eLTE network RAN from the RAN of the NR, and the network initiates downlink signaling or downlink service.
  • Example 3 The network architecture and specific scenarios of Example 3 are the same as those of Example 1.
  • the UE enters an inactive state at the NR, and both the gNB and the UE side maintain a set of NR UE contexts.
  • the gNB can configure the UE with a valid time timer of the NR UE context, and once the UE enters eLTE, the timer is started. If the gNB does not configure the timer or configure the timer to be infinite, the UE keeps the NR UE context.
  • the UE in the inactive state enters the eLTE network from the NR network. After the UE enters the eLTE network, it enters the idle state, still retains the UE context of the NR, and starts a valid timer (if any). If the UE returns to NR before the valid timer (if any) times out, the inactive state is directly restored, and the NR UE context is restored. Alternatively, the UE performs an RNA update at the NR. After the timer expires, the UE deletes the NR UE context.
  • the UE does not initiate any uplink transmission on the eLTE network, and the NGC still considers the UE to be in the NR network.
  • the gNB is triggered.
  • the gNB On the RAN side, when the gNB cannot page to the UE in the RAN range, the gNB notifies the NGC (optional, gNB deletes the NR UE context), and the core network pages are advertised by the NGC (paging in the TA range)
  • the subsequent UE initiates an uplink process by responding to the paging from the eLTE, and the uplink process may adopt the manner in the example 1 or the example 2.
  • the scenario of the example 4 is: the inactive state UE enters the eLTE network from the NR, and there is no uplink/downlink traffic/signaling.
  • Example 4 The network architecture and specific scenarios of Example 4 are the same as those of Example 1.
  • the UE enters an inactive state at the NR, and both the gNB and the UE side maintain a set of NR UE contexts.
  • the gNB can configure the UE with a valid time timer of the NR UE context, and once the UE enters the eLTE, the timer is started. If the gNB does not configure the timer or configure the timer to be infinite, the UE keeps the NR UE context.
  • the UE in the inactive state enters the eLTE network from the NR network. After the UE enters the eLTE network, it enters the idle state, still retains the UE context of the NR, and starts a valid timer (if any). During the operation of the active timer (if any), the UE does not initiate uplink/downlink traffic/signaling in the eLTE network. After the UE returns to the NR network, the UE directly enters the inactive state, and restores the NR UE context and stops the timer. Optionally, the UE performs an RNA update on the NR.
  • the UE deletes the NRUE context.
  • Example 5 Inactive state UE enters LTE network from NR
  • Example 5 is as shown in FIG. 3 in the background art, and a specific scenario is shown in FIG.
  • the UE enters an inactive state at the NR, and both the gNB and the UE side maintain a set of NR UE contexts.
  • the gNB can configure the UE with a valid time timer of the NRUE context, and once the UE enters the LTE, the timer is started. If the gNB does not configure the timer or configure the timer to be infinite, the UE keeps the NRUE context.
  • the UE in the inactive state enters the LTE network from the NR network. After the UE enters the LTE network, it enters the idle state, still retains the NR UE context, and starts a valid timer (if any).
  • the UE initiates an RRC connection establishment, and the UE notifies the current UE identifier (such as S-TMSI), or the inactive UE ID associated with the NR UEcontext or the gNB identifier that holds the NR UE context, and the UE stops the NR UE context timer. (if any) and remove the NR UE context.
  • the EPC of the LTE notifies the NGC of the information of the UE entering the LTE network, and the NGC finds the gNB that holds the NR UEcontext based on the UE identity, or the inactive UE ID, or the gNB identifier that holds the NR UE context, notifies the gNB to release the NR UE context, and releases The connection of the UE in the NR network (including the NG2 and NG3 interfaces).
  • the mobility management method, the core network, and the base station provided by the embodiments of the present disclosure, after the UE in the inactive state enters the eLTE/LTE network from the NR network, the NR UE context is still retained, and the NR is deleted until certain conditions are met.
  • the UE context may be that the UE initiates an RRC connection setup in the eLTE/LTE network, and the received paging or NR UE context valid timer expires.
  • the embodiment of the present disclosure implements the inter-RAT mobility management of the UE in the inactive state, and can solve the mobility problem between the different systems, so that the terminal can work normally.

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Abstract

本公开提供了一种无线接入网络间的移动性管理方法、核心网设备及基站。本公开在非激活状态的终端发生异***间的移动时，仍然保留所述终端在NR***中处于非激活态时的用户上下文信息，直至满足某些条件，才删除上述用户上下文信息。本公开可以实现对非激活状态的终端的inter-RAT移动性管理，解决异***之间的移动性问题，使终端可以正常工作。

Description

无线接入网络间的移动性管理方法、核心网设备及基站
相关申请的交叉引用
本申请主张在2016年12月28日在中国提交的中国专利申请号No.201611235422.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及移动通信技术领域，具体涉及一种无线接入网络间的移动性管理方法、核心网设备及基站。
背景技术
随着无线通信***的发展，终端类型和业务类型多样化，终端省电、节约网络资源和满足各种业务类型的需求并存。为了同时保证终端省电和快速数据传输，在5G的新空口(NR)***的新无线接入技术(New RAT)中引入一种新的移动性状态：RRC_INACTIVE(本文中又称作非激活态或inactive态)。
inactive态下终端保持核心网连接，但不进行空口连接态的常规操作(如切换、上行定时更新、无线链路监控等)，不分配直接用于空口传输的终端标识(如C-RNTI)，因此不能直接进行空口调度传输。在inactive(非激活)状态下，终端需要监听寻呼消息，以保证可以收到来自网络侧的呼叫。
图1为下一代(NextGen)网络的网络架构中的接口，其中，gNB是New RAT(NR)***中的基站。NG2表示无线接入网络(RAN，Radio Access Network)和核心网的控制面接口，NG3表示RAN和核心网的用户面接口。NR基站gNB通过用户面接口NG3连接至5G核心网(NGC，NextGen Core)的用户面功能(UP functions)单元，通过控制面接口NG2连接至NGC的控制面功能(CP functions)单元。终端(UE)在非激活态下，RAN节点虽然释放了该UE的无线资源控制(RRC)连接，但仍然保留UE的NG2和NG3接口的连接。UE在该状态对核心网透明，即核心网仍然认为UE一直处于连接态，因此下行信令或数据将会到达RAN节点，此时RAN需要寻呼UE。
下面介绍核心网级别(CN level)和无线接入网级别(RAN level)的位置 区域的概念。
CN level位置区域，即核心网控制的UE位置区域，通常称为跟踪区(TA，Tracking Area)。相关技术中，核心网总是通过非接入层(NAS，Non Access Stratum)消息为UE配置TA列表(TAI list)。UE存储核心网配置的TAI List，当驻留(终端为空闲态)或接入(终端为连接态)一个小区的时候，读取小区空口广播的***消息，从中获取信息得到TAI，如果该TAI未存储在TAI list中，则UE发起跟踪区更新(TAU，Tracking Area Update)过程，通过与核心网的NAS信令交互获取新的TAI List。
在未引入inactive态之前，UE只有空闲态和连接态，UE在空闲态的位置区域是TA，在连接态的位置区域是小区。引入inactive态后，为UE引入了一个RAN level位置区域，即RAN通知区域(RNA，RAN Notification Area)。RNA可以包含多个小区。RAN网络侧节点NR基站(gNB)可以在RNA区域内的多个小区下发送通知消息寻找UE。当UE移出一个RNA后，需要进行RNA更新，以使RAN网络侧节点可以找到该UE。
TA和RNA是分别由核心网节点和RAN节点维护的UE位置区域，其作用分别是使核心网节点和RAN节点可以对UE进行位置区域跟踪。UE处于空闲态时，核心网通过在UE的TAI list区域下的所有小区内发送寻呼(paging)消息查找UE；UE处于inactive态下，RAN节点gNB通过在RNA区域下的所有小区内发送通知消息(notification)查找UE。
下面介绍NR与eLTE/LTE的跨无线接入技术(inter-RAT)网络架构。
请参照图2所示的eLTE和NR的inter-RAT网络架构，NR基站gNB和eLTE基站eLTE eNB都连接到5G核心网(NGC，NextGen Core)。可以看出，gNB与eNB都通过用户面(UP)接口和控制面(CP)接口连接至NGC。
请参照图3所示的LTE和NR的inter-RAT网络架构。其中，NR基站gNB连接到5G核心网NGC，而LTE基站LTE eNB连接到4G核心网演进分组核心网(EPC，Evolved Packet Core)。
图2和图3提供的上述两种架构都是inter-RAT架构。当inactive态终端从NR移动到LTE/eLTE网络时，就是在上述两种网络架构下进行的移动行为。由于目前对此还没有相关标准化内容，因此UE的行为是不确定的。
从以上分析可以看出，相关技术仅定义了NR***的inactive状态，当处于inactive状态的UE从NR***移动到其他通信***时(如LTE/eLTE***)，由于其他通信***没有inactive状态，终端将无法继续保持inactive态，此时终端的行为是不确定的，无法正常进行工作。
发明内容
本公开实施例提供了一种无线接入网络间的移动性管理方法、核心网设备及基站，用以实现inactive态的UE从NR网络进入eLTE/LTE网络后的移动性管理。
本公开实施例提供的无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，其特征在于，所述方法包括：
处于非激活态的终端，检测到本终端从第一RAN接入至第二RAN；
所述终端将自身状态从所述非激活态切换为空闲态，并继续在本地保留所述终端在NR***中处于非激活态时的用户上下文信息。
以上方法中，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，所述方法还包括：
若所述终端检测到本终端重新接入回第一RAN，则将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息。
以上方法中，所述第二RAN为eLTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，若所述终端在第二RAN中发起上行信令过程，则所述方法还包括：
在所述上行信令过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；
在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上方法中，所述第二RAN为eLTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，若所述终端在第二RAN中发起上行业务过程，则所述方法还包括：
在所述上行业务过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；
在所述上行业务过程触发建立RRC连接过程中，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上方法中，所述第二RAN为LTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，所述方法还包括：
若所述终端发起RRC连接建立过程，则所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
以上方法中，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，所述方法还包括：
所述终端启动一由NR***预先配置的计时器；
在所述计时器超时前，若所述终端检测到本终端重新接入回第一RAN，则停止所述计时器，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息；
在所述计时器超时后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上方法中，所述第二RAN为eLTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，若在所述计时器超时前，所述终端在第二RAN中发起上行信令过程，则所述方法还包括：
在所述上行信令过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息 发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；
在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上方法中，所述第二RAN为eLTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，若在所述计时器超时前，所述终端在第二RAN中发起上行业务过程，则所述方法还包括：
在所述上行业务过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；
在所述上行业务过程触发建立RRC连接过程中，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上方法中，所述第二RAN为LTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，所述方法还包括：
若在所述计时器超时前，所述终端发起RRC连接建立过程，则所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
以上方法中，在所述将自身状态切换回非激活态的步骤之后，所述方法还包括：
所述终端发起RAN级别的位置区域RNA更新过程，进行RNA更新。
本公开实施例还提供了一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述第二RAN为eLTE***的RAN，所述方法包括：
所述NR***的第一核心网接收第一RAN中的第一基站在RAN级别的位置区域RNA内无法寻呼到处于非激活态的第一终端时发送的寻呼失败消息， 所述第一基站为保存有所述第一终端在所述NR***中的用户上下文信息的基站；
所述第一核心网在核心网级别的位置区域TA内对所述第一终端发起寻呼。
以上方法中，若所述NR***的第一核心网接收第二RAN中的第二终端在上行信令过程触发的RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第二基站，所述第二基站为保存有所述第二终端在所述NR***中的用户上下文信息的基站；则所述方法还包括：
第一核心网根据所述提示信息，继续保持所述第二终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，以及，向第二基站发送一用于通知所述第二基站继续保持所述第二终端的连接的通知消息。
以上方法中，在所述第二终端的上行信令过程结束后，所述方法还包括：
所述第一核心网释放所述第二终端与所述eLTE***之间的连接。
以上方法中，在释放所述第二终端与所述eLTE***之间的连接的步骤之后，所述方法还包括：
第一核心网在所述第二终端的下行业务到达时，直接在eLTE***的第二RAN中进行寻呼，并在接收到所述第二终端的寻呼响应消息后，将所述第二终端在NR***中NG2连接和GN3连接，从第一基站转移至第二RAN中的对应基站，以及，向第二基站发送一用于通知所述第二基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息。
以上方法中，若所述NR***的第一核心网接收到第二RAN中的第三终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第三基站，所述第三基站为保存有所述第三终端在所述NR***中的用户上下文信息的基站，则所述方法还包括：
第一核心网根据所述提示信息，将所述第三终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，转移至第二RAN中的对应基站，以及，向第三基站发送一用于通知所述第三基站释放所述第三终端的连接以及删除所述第三终端在NR***中处于非激活态时的用户上下文信息的通知消息。
以上方法中，所述RRC连接建立过程为第三终端在发起上行信令过程时 触发的，或者在发起上行业务过程时触发的。
本公开实施例还提供了另一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述第二RAN为LTE***的RAN，所述方法包括：
所述NR***的第一核心网接收第二RAN中的终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第一基站，所述第一基站为保存有所述终端在所述NR***中的用户上下文信息的基站；
第一核心网根据所述提示信息，向第一基站发送一用于通知所述第一基站释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息。
以上方法中，所述第一核心网进一步通过与所述LTE***的EPC之间的接口，接收所述EPC转发的所述提示消息。
本公开实施例还提供了又一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述第二RAN为eLTE***的RAN，所述方法包括：
第一RAN中的第一基站，在RAN级别的位置区域RNA内发起对处于非激活态的第一终端的寻呼，所述第一基站保存有所述第二终端在所述NR***中处于非激活态时的用户上下文信息；
若第一RAN在所述RNA内无法寻呼到所述第一终端，则向所述NR***的第一核心网发送一表示在RNA内无法寻呼到第一终端时发送的寻呼失败消息。
以上方法中，若第一基站接收到第一核心网发送的一用于通知所述第一基站继续保持第二终端的连接的通知消息，则所述方法包括：
第一基站根据所述通知消息，启动一计时器，并在所述计时器超时前，保持所述第二终端在NR***中的连接，保留所述第二终端在NR***中处于非激活态时的用户上下文信息，以及，在所述计时器超时后，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
以上方法中，若第一基站接收到第一核心网发送的一用于通知所述第一基 站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息，则所述方法包括：
第一基站根据所述通知消息，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
本公开实施例还提供了再一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述第二RAN为LTE***的RAN，所述方法包括：
所述NR***的第一基站，接收所述NR***的第一核心网发送的一用于通知所述第一基站释放终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息；
第一基站根据所述通知消息，释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息。
本公开实施例还提供了一种终端，所述终端包括：
第一检测单元，用于在本终端处于非激活态时，检测到本终端从第一RAN接入至第二RAN，其中，第一RAN为新空口NR***的RAN；
第一切换单元，用于所述终端将自身状态从所述非激活态切换为空闲态，并继续在本地保留所述终端在NR***中处于非激活态时的用户上下文信息。
以上终端还包括：
第二检测单元，用于检测到本终端重新接入回第一RAN；
第二切换单元，用于在第二检测单元检测到本终端重新接入回第一RAN时，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息。
以上终端中，所述第二RAN为eLTE***的RAN，所述终端还包括：
第一信令发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在第二RAN中发起上行信令过程，并在所述上行信令过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行信令过程触发建立RRC连接过程中，或者在所 述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上终端中，所述第二RAN为eLTE***的RAN，所述终端还包括：
第一业务发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在第二RAN中发起上行业务过程，并在所述上行业务过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行业务过程触发建立RRC连接过程中，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上终端中，所述第二RAN为LTE***的RAN，所述终端还包括：
第一连接建立单元，用于在将终端状态从所述非激活态切换为空闲态之后，若发起RRC连接建立过程，则删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
以上终端中，还包括：
计时处理单元，用于在将终端状态从所述非激活态切换为空闲态之后，启动一由NR***预先配置的计时器；以及，在所述计时器超时前，若所述终端检测到本终端重新接入回第一RAN，则停止所述计时器，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息；在所述计时器超时后，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上终端中，所述第二RAN为eLTE***的RAN，所述终端还包括：
第二信令发起单元，用于在将终端状态从所述非激活态切换为空闲态的步骤之后，若在所述计时器超时前，在第二RAN中发起上行信令过程，则在所述上行信令过程触发建立RRC连接过程中，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述 提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上终端中，所述第二RAN为eLTE***的RAN，所述终端还包括：
第二业务发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在所述计时器超时前，在第二RAN中发起上行业务过程，则在所述上行业务过程触发建立RRC连接过程中，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行业务过程触发建立RRC连接过程中，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
以上终端中，所述第二RAN为LTE***的RAN，所述终端还包括：
第二连接建立单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在所述计时器超时前，发起RRC连接建立过程，则删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
以上终端中，所述终端还包括：
更新单元，用于在将终端状态切换回非激活态之后，发起RAN级别的位置区域RNA更新过程，进行RNA更新。
本公开实施例还提供了一种新空口NR***的第一核心网，包括：
第一接收单元，用于接收第一RAN中的第一基站在RAN级别的位置区域RNA内无法寻呼到处于非激活态的第一终端时发送的寻呼失败消息，所述第一基站为保存有所述第一终端在所述NR***中的用户上下文信息的基站，第一RAN为新空口NR***的RAN；
第一寻呼单元，用于在核心网级别的位置区域TA内对所述第一终端发起寻呼。
以上第一核心网还包括：
第二接收单元，用于接收第二RAN中的第二终端在上行信令过程触发的RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第二基站，所述第二基站为保存有所述第二终端在所述NR***中的用户上下文信息的基站，所述第二RAN为eLTE***的RAN；
第一处理单元，用于根据所述提示信息，继续保持所述第二终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，以及，向第二基站发送一用于通知所述第二基站继续保持所述第二终端的连接的通知消息。
以上第一核心网还包括：
连接释放单元，用于在所述第二终端的上行信令过程结束后，释放所述第二终端与所述eLTE***之间的连接。
以上第一核心网还包括：
第一寻呼单元，用于在所述连接释放单元释放所述第二终端与所述eLTE***之间的连接之后，若所述第二终端的下行业务到达，则直接在eLTE***的第二RAN中进行寻呼，并在接收到所述第二终端的寻呼响应消息后，将所述第二终端在NR***中NG2连接和GN3连接，从第一基站转移至第二RAN中的对应基站，以及，向第二基站发送一用于通知所述第二基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息。
以上第一核心网还包括：
第三接收单元，用于接收第二RAN中的第三终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第三基站，所述第三基站为保存有所述第三终端在所述NR***中的用户上下文信息的基站，则所述第一核心网还包括：
第二处理单元，用于根据所述提示信息，将所述第三终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，转移至第二RAN中的对应基站，以及，向第三基站发送一用于通知所述第三基站释放所述第三终端的连接以及删除所述第三终端在NR***中处于非激活态时的用户上下文信息的通知消息。
以上第一核心网所述RRC连接建立过程为第三终端在发起上行信令过程时触发的，或者在发起上行业务过程时触发的。
本公开实施例还提供了一种新空口NR***的第一核心网，包括：
第一接收单元，用于接收第二RAN中的终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第一基站，所述第一基站为保存有所述终端在所述NR***中的用户上下文信息的基站，所述第二RAN为LTE***的RAN；
第一发送单元，用于向第一基站发送一用于通知所述第一基站释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息。
以上第一核心网中，所述第一接收单元，进一步通过与所述LTE***的EPC之间的接口，接收所述EPC转发的所述提示消息。
本公开实施例还提供了一种新空口NR***的无线接入网络的第一基站，包括：
寻呼单元，用于在第一RAN内的RAN级别的位置区域RNA内发起对处于非激活态的第一终端的寻呼，所述第一基站保存有所述第二终端在所述NR***中处于非激活态时的用户上下文信息，第一RAN为新空口NR***的RAN；
第一发送单元，用于若第一RAN在所述RNA内无法寻呼到所述第一终端，则向所述NR***的第一核心网发送一表示在RNA内无法寻呼到第一终端时发送的寻呼失败消息。
以上第一基站还包括：
第一接收单元，用于接收第一核心网发送的一用于通知所述第一基站继续保持第二终端的连接的通知消息；
第一处理单元，用于根据所述通知消息，启动一计时器，并在所述计时器超时前，保持所述第二终端在NR***中的连接，保留所述第二终端在NR***中处于非激活态时的用户上下文信息，以及，在所述计时器超时后，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
以上第一基站还包括：
第二接收单元，用于接收第一核心网发送的一用于通知所述第一基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息；
第二处理单元，用于根据所述通知消息，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
本公开实施例还提供了一种新空口NR***的无线接入网络的第一基站，包括：
接收单元，用于接收所述NR***的第一核心网发送的一用于通知所述第一基站释放终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息；
释放单元，用于根据所述通知消息，释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息。
与相关技术相比，本公开实施例提供的无线接入网络间的移动性管理方法、核心网设备及基站，在非激活状态的终端发生异***间的移动时，仍然保留所述终端在NR***中处于非激活态时的用户上下文信息，直至满足某些条件，才删除上述用户上下文信息。本公开可以实现对非激活状态的终端的inter-RAT移动性管理，解决异***之间的移动性问题，使终端可以正常工作。
附图说明
图1为相关技术的下一代(NextGen)网络的网络架构示意图；
图2为相关技术的eLTE和NR的inter-RAT网络架构示意图；
图3为相关技术的LTE和NR的inter-RAT网络架构示意图；
图4为本公开实施例的移动性管理方法应用于终端时的流程示意图；
图5为本公开实施例的移动性管理方法应用于NR核心网时的一种流程示意图；
图6为本公开实施例的移动性管理方法应用于NR核心网时的另一种流程示意图；
图7为本公开实施例的移动性管理方法应用于NR核心网时的又一种流程 示意图；
图8为本公开实施例的移动性管理方法应用于NR基站时的一种流程示意图；
图9为本公开实施例的终端的一种结构示意图；
图10为本公开实施例的终端的另一种结构示意图；
图11为本公开实施例的NR***的核心网的一种结构示意图；
图12为本公开实施例的NR***的核心网的另一种结构示意图；
图13为本公开实施例的NR***的核心网的又一种结构示意图；
图14为本公开实施例的NR***的核心网的再一种结构示意图；
图15为本公开实施例的NR***的基站的一种结构示意图；
图16为本公开实施例的NR***的基站的另一种结构示意图；
图17为本公开实施例的NR***的基站的又一种结构示意图；
图18为本公开实施例的NR***的基站的再一种结构示意图；
图19为本公开实施例提供的示例1的场景示意图；
图20为本公开实施例提供的示例5的场景示意图。
具体实施方式
为使本公开技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。在下面的描述中，提供诸如具体的配置和组件的特定细节仅仅是为了帮助全面理解本公开的实施例。因此，本领域技术人员应该清楚，可以对这里描述的实施例进行各种改变和修改而不脱离本公开的范围和精神。另外，为了清楚和简洁，省略了对已知功能和构造的描述。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。在本公开的各种实施例中，应理解，下述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在 逻辑确定，而不应对本公开实施例的实施过程构成任何限定。另外，本文中术语“***”和“网络”在本文中常可互换使用。
首先，针对图2和图3所示的应用场景说明终端侧的行为。
本公开实施例提供了一种RAN间的移动性管理方法，其应用在基于不同RAT的RAN之间，具体的，上述RAN包括第一RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，第二RAN可以是3G***或4G***的RAN，也可以是LTE***或eLTE***的RAN。本文的后续实施例将主要以LTE***和eLTE***为例进行说明。需要指出的是，本公开实施例的第二RAN并不局限于LTE***和eLTE***的RAN。
请参照图4，本公开实施例提供的移动性管理方法，在应用于终端侧时，包括以下步骤：
步骤41，处于非激活态的终端，检测到本终端从第一RAN接入至第二RAN。
这里，第一RAN为NR***的RAN，终端在第一RAN下进入了非激活态，后续该终端可能发生了移动，进入了基于不同RAT的第二RAN。第二RAN可以是3G/4G/LTE/eLTE***的RAN。终端移动至并接入第二RAN时，可以通过读取小区空口广播的***消息等方式，确定当前已经离开了第一RAN并接入了基于不同RAT的第二RAN。
步骤42，所述终端将自身状态从所述非激活态切换为空闲态，并继续在本地保留所述终端在NR***中处于非激活态时的用户上下文信息。
这里，终端在进入第二RAN之后，由于非激活态将不再适用于该第二RAN，因此终端将自身状态切换为空闲态(RRC-IDLE)，并继续在终端本地保留所述终端在NR***中处于非激活态时的用户上下文信息。具体的，上述上下文信息可能包括以下信息的一种或多种：无线资源配置参数、安全参数、UE能力参数等。
通过以上步骤，本公开实施例对非激活态的终端离开NR***的第一RAN并进入基于不同RAT的第二RAN后的行为进行了定义，由此终端可以采用第二RAN下能够工作的空闲态，使得终端后续可以正常工作。
本公开实施例在上述步骤42中，终端将保留其在NR***中处于非激活 态时的用户上下文信息，以便于后续返回NR***时快速恢复为非激活态。例如，当终端检测到本终端重新接入回第一RAN，可以将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息。由于终端重新接入第一RAN时的基站可能发生了变化，不再是之前离开第一RAN时的第一基站，此时，终端还可以在将自身状态切换回非激活态之后，发起RAN级别的位置区域RNA更新过程，进行RNA更新，以使RAN网络侧节点可以找到该UE。
在上述步骤42之后，终端以空闲态驻留在第二RAN中。后续终端可能在第二RAN中有不同的行为。例如，终端可能会发起上行信令过程或上行业务过程，在上述过程中，终端可能需要与网络建立RRC连接。下面对本公开实施例的终端在上述过程中的行为进行说明。
1)在第二RAN为eLTE***的RAN时，在上述步骤42之后，终端以空闲态驻留在第二RAN中如果终端在第二RAN中发起上行信令过程，则在所述上行信令过程触发建立RRC连接过程中，所述终端可以将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息可以是所述终端的当前终端标识，或者是与所述用户上下文信息关联的非激活态终端标识，或者是第一基站的标识。上述提示信息提供给网络侧，可以使得网络侧基于提示信息确定第一基站，并通知第一基站删除该终端的上述上下文信息。具体的，eLTE的基站eNB可以将用户发送的上述提示信息直接发送给NGC，由NGC通知第一基站删除该终端的上述上下文信息。
另外，在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端还可以删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
2)在第二RAN为eLTE***的RAN时，在上述步骤42之后，终端以空闲态驻留在第二RAN中。后续如果终端在第二RAN中发起上行业务过程，则在所述上行业务过程触发建立RRC连接过程中，所述终端可以将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上 下文信息关联的非激活态终端标识、或第一基站的标识。上述提示信息提供给网络侧，可以使得网络侧基于提示信息确定第一基站，并通知第一基站删除该终端的上述上下文信息。具体的，eLTE的基站eNB可以将用户发送的上述提示信息直接发送给NGC，由NGC通知第一基站删除该终端的上述上下文信息。
另外，在所述上行业务过程触发建立RRC连接过程中，所述终端还可以删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
3)在第二RAN为LTE***的RAN时，在上述步骤42之后，终端以空闲态驻留在第二RAN中。后续如果终端发起RRC连接建立过程，则所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。上述提示信息提供给网络侧，可以使得网络侧基于提示信息确定第一基站，并通知第一基站删除该终端的上述上下文信息。具体的，LTE的基站eNB可以将用户发送的上述提示信息发送给EPC，由EPC转发给NGC，进而由NGC通知第一基站删除该终端的上述上下文信息。
作为另一种实现方式，本公开实施例中，还可以进一步设置一个针对用户上下文信息的有效时间计时器，该计时器基于一个预定的超时时间，在达到或超过该超时时间后，将触发终端以及网络侧删除该终端在NR***中处于非激活态时的用户上下文信息。
下面对本公开实施例采用了计时器时的终端的行为进行说明。
在上述步骤42之后，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，终端启动一由NR***预先配置的计时器。在所述计时器超时前，若所述终端检测到本终端重新接入回第一RAN，则停止所述计时器，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息。在所述计时器超时后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
在启动所述计时器并以空闲态驻留在第二RAN中时，在所述计时器超时前，所述终端可能在第二RAN中有不同的行为。例如，终端可能会发起上行 信令过程或上行业务过程，在上述过程中，终端可能需要与网络建立RRC连接。下面对本公开实施例的终端在上述过程中的行为进行说明。
1)在第二RAN为eLTE***的RAN时，在上述步骤42之后，终端以空闲态驻留在第二RAN中，在所述计时器超时前，如果终端在第二RAN中发起上行信令过程，则在所述上行信令过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。上述提示信息提供给网络侧，可以使得网络侧基于提示信息确定第一基站，并通知第一基站删除该终端的上述上下文信息。具体的，eLTE的基站eNB可以将用户发送的上述提示信息直接发送给NGC，由NGC通知第一基站删除该终端的上述上下文信息。
另外，在所述计时器超时前，在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
2)在第二RAN为eLTE***的RAN时，在上述步骤42之后，终端以空闲态驻留在第二RAN中，在所述计时器超时前，如果所述终端在第二RAN中发起上行业务过程，则在所述上行业务过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。具体的，eLTE的基站eNB可以将用户发送的上述提示信息直接发送给NGC，由NGC通知第一基站删除该终端的上述上下文信息。
另外，在所述计时器超时前，在所述上行业务过程触发建立RRC连接过程中，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
3)在第二RAN为LTE***的RAN时，在上述步骤42之后，终端以空闲态驻留在第二RAN中，在所述计时器超时前，后续如果终端发起RRC连 接建立过程，则所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。具体的，LTE的基站eNB可以将用户发送的上述提示信息发送给EPC，由EPC转发给NGC，进而由NGC通知第一基站删除该终端的上述上下文信息。
以上对非激活态的终端进入到其他RAN后的移动性管理方法进行了说明。下文中将进一步从NR***的核心网侧说明上述移动性管理方法。
下面针对图2所示的应用场景说明NR侧的核心网行为。
请参照图5，本公开实施例提供的无线接入网络RAN间的移动性管理方法，这里的RAN包括第一RAN和第二RAN。这里第一RAN为NR***的RAN，第二RAN为eLTE的RAN。该移动性管理方法应用于NR***的第一核心网侧，包括以下步骤：
步骤51，所述NR***的第一核心网接收第一RAN中的第一基站在RAN级别的位置区域RNA内无法寻呼到处于非激活态的第一终端时发送的寻呼失败消息，所述第一基站为保存有所述第一终端在所述NR***中的用户上下文信息的基站。
步骤52，所述第一核心网在核心网级别的位置区域TA内对所述第一终端发起寻呼。
以上步骤51中，在针对非激活态终端进行寻呼时，由保存有第一终端在所述NR***中的用户上下文信息的第一基站，在该第一终端的RNA区域下的所有小区内发送通知消息(notification)查找UE。若寻呼失败，则表示第一终端可能离开了第一RAN，则在步骤52中，第一核心网进一步在核心网级别的位置区域TA内对所述第一终端发起寻呼。
通过以上步骤，可以在处于非激活态的第一终端离开第一RAN后实行对该第一终端的寻呼。
如前文所述的，处于非激活态的终端(这里，假设该终端为第二终端)在离开第一RAN并接入至第二RAN后，该第二终端可能发起上行信令过程， 在此上行信令过程触发的RRC连接建立过程中，该第二终端可能会向网络侧发送提示信息，用于指示网络侧保存有该终端在NR***的用户上下文信息的基站。下面对上述过程中的第一核心网的行为进行说明。
本公开实施例的所述NR***的第一核心网，还可能接收第二RAN中的第二终端在上行信令过程触发的RRC连接建立过程中发送的提示信息，所述提示信息用于提示所述第一RAN中的第二基站，所述第二基站为保存有所述第二终端在所述NR***中的用户上下文信息的基站。
第一核心网接收到上述提示消息后，即可获知第二终端已经离开第一RAN并进入第二RAN，此时第一核心网根据所述提示信息，继续保持所述第二终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，以及，向第二基站发送一用于通知所述第二基站继续保持所述第二终端的连接的通知消息。后续，在所述第二终端的上行信令过程结束后，所述第一核心网可以释放所述第二终端与所述eLTE***之间的连接。
后续，第一核心网在所述第二终端的下行业务到达时，可以直接在eLTE***的第二RAN中进行寻呼，并在接收到所述第二终端的寻呼响应消息后，将所述第二终端在NR***中NG2连接和GN3连接，从第一基站转移至第二RAN中的对应基站(Pathswitch)，以及，向第二基站发送一用于通知所述第二基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息。
本公开实施例中，作为另一种实现方式，第一核心网在上述第二终端发起的上行信令过程中，若接收到上述提示信息，获知第二终端已经离开第一RAN并进入第二RAN，此时第一核心网可以直接切换第二终端的接口路径(Pathswitch)，而不需要等待所述第二终端的下行业务到达时才进行切换，即第一核心网收到上述提示信息后，将所述第二终端在NR***中NG2连接和GN3连接，从第一基站转移至第二RAN中的对应基站(Pathswitch)，以及，向第二基站发送一用于通知所述第二基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息。
如前文所述的，处于非激活态的终端(这里，假设该终端为第三终端)在离开第一RAN并接入至第二RAN后，该第三终端可能发起上行业务过程， 在此上行业务过程触发的RRC连接建立过程中，该第三终端可能会向网络侧发送提示信息，用于指示网络侧保存有该终端在NR***的用户上下文信息的基站。下面对上述过程中的第一核心网的行为进行说明。
本公开实施例的所述NR***的第一核心网，还可能接收第二RAN中的第三终端在在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第三基站，所述第三基站为保存有所述第三终端在所述NR***中的用户上下文信息的基站。这里，所述RRC连接建立过程为第三终端在发起上行信令过程时触发的，或者在发起上行业务过程时触发的。
第一核心网在收到上述提示信息后，可以将所述第三终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，转移至第二RAN中的对应基站，以及，向第三基站发送一用于通知所述第三基站释放所述第三终端的连接以及删除所述第三终端在NR***中处于非激活态时的用户上下文信息的通知消息。
下面针对图3所示的应用场景说明NR侧的核心网行为。
请参照图6，本公开实施例提供的无线接入网络RAN间的移动性管理方法，这里的RAN包括第一RAN和第二RAN。这里第一RAN为NR***的RAN，第二RAN为LTE的RAN。该移动性管理方法应用于NR***的第一核心网侧，包括以下步骤：
步骤61，所述NR***的第一核心网接收第二RAN中的终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第一基站，所述第一基站为保存有所述终端在所述NR***中的用户上下文信息的基站。
这里，所述RRC连接建立过程可以是第一终端在发起上行信令过程时触发的，或者在发起上行业务过程时触发的，也可能是网络侧发现下行信令/业务过程触发的。所述第一核心网可以通过与所述LTE***的EPC之间的接口，接收所述EPC转发的所述提示消息。
步骤62，第一核心网根据所述提示信息，向第一基站发送一用于通知所述第一基站释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息。
通过以上步骤中，第一核心网在收到LTE***的EPC转发的上述提示消息后，可以指示第一基站释放所述终端的连接并删除该第一终端的用户上下文信息，实现了对非激活态的终端进入LTE的RAN后的移动性管理。
以上对NR***的核心网的行为进行了说明。接下来将进一步说明本公开实施例在NR***的无线接入网RAN侧的处理。
请参照图7，本公开实施例提供的无线接入网络RAN间的移动性管理方法，这里的RAN包括第一RAN和第二RAN。这里第一RAN为NR***的RAN，第二RAN为eLTE的RAN。该移动性管理方法应用于NR***的第一RAN侧，包括以下步骤：
步骤71，第一RAN中的第一基站，在RAN级别的位置区域RNA内发起对处于非激活态的第一终端的寻呼，所述第一基站保存有所述第一终端在所述NR***中处于非激活态时的用户上下文信息。
步骤72，若第一RAN在所述RNA内无法寻呼到所述第一终端，则向所述NR***的第一核心网发送一表示在RNA内无法寻呼到第一终端时发送的寻呼失败消息。
以上步骤中，第一RAN在RNA内未能寻呼到第一终端，则表示第一终端可能离开了第一RAN。此时，第一基站向核心网发送寻呼失败消息，以使核心网可以在TA内对该第一终端进行寻呼，实现了非激活终端在进入e.LTE的RAN后的移动性管理。
本公开实施例中，若第一基站接收第一核心网发送的一用于通知所述第一基站继续保持第二终端的连接的通知消息。
第一基站根据所述通知消息，启动一计时器，并在所述计时器超时前，保持所述第二终端在NR***中的连接，保留所述第二终端在NR***中处于非激活态时的用户上下文信息，以及，在所述计时器超时后，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
请参照图8，本公开实施例提供的无线接入网络RAN间的移动性管理方法，这里的RAN包括第一RAN和第二RAN。这里第一RAN为NR***的RAN，第二RAN为LTE的RAN。该移动性管理方法应用于NR***的第一 RAN侧，包括以下步骤：
步骤81，所述NR***的第一基站，接收所述NR***的第一核心网发送的一用于通知所述第一基站释放终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息。
步骤82，第一基站根据所述通知消息，释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息。
以上步骤中，第一基站直接根据所述通知消息，释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息，实现了非激活终端在进入LTE的RAN后的移动性管理。
基于以上实施例提供的移动性管理方法，本公开一些实施例提供了实施上述方法的终端。请参照图9，本实施例提供了一种终端，包括：
第一检测单元91，用于在本终端处于非激活态时，检测到本终端从第一RAN接入至第二RAN，其中，第一RAN为新空口NR***的RAN；
第一切换单元92，用于所述终端将自身状态从所述非激活态切换为空闲态，并继续在本地保留所述终端在NR***中处于非激活态时的用户上下文信息。
这里，所述终端还可以包括：
第二检测单元，用于检测到本终端重新接入回第一RAN；
第二切换单元，用于在第二检测单元检测到本终端重新接入回第一RAN时，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息。
这里，所述第二RAN为eLTE***的RAN，所述终端还包括：
第一信令发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在第二RAN中发起上行信令过程，并在所述上行信令过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端删除本地保 留的所述终端在NR***中处于非激活态时的用户上下文信息。
这里，所述第二RAN为eLTE***的RAN，所述终端还包括：
第一业务发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在第二RAN中发起上行业务过程，并在所述上行业务过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行业务过程触发建立RRC连接过程中，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
这里，所述第二RAN为LTE***的RAN，所述终端还包括：
第一连接建立单元，用于在将终端状态从所述非激活态切换为空闲态之后，若发起RRC连接建立过程，则删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
这里，所述终端还包括：
计时处理单元，用于在将终端状态从所述非激活态切换为空闲态之后，启动一由NR***预先配置的计时器；以及，在所述计时器超时前，若所述终端检测到本终端重新接入回第一RAN，则停止所述计时器，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息；在所述计时器超时后，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
这里，所述第二RAN为eLTE***的RAN，所述终端还包括：
第二信令发起单元，用于在将终端状态从所述非激活态切换为空闲态的步骤之后，若在所述计时器超时前，在第二RAN中发起上行信令过程，则在所述上行信令过程触发建立RRC连接过程中，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活 态终端标识、或第一基站的标识；以及，在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
这里，所述第二RAN为eLTE***的RAN，所述终端还包括：
第二业务发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在所述计时器超时前，在第二RAN中发起上行业务过程，则在所述上行业务过程触发建立RRC连接过程中，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行业务过程触发建立RRC连接过程中，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
这里，所述第二RAN为LTE***的RAN，所述终端还包括：
第二连接建立单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在所述计时器超时前，发起RRC连接建立过程，则删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
这里，所述终端还包括：
更新单元，用于在将终端状态切换回非激活态之后，发起RAN级别的位置区域RNA更新过程，进行RNA更新。
请参照图10，本实施例提供了另一种终端，包括：处理器101；通过总线接口与所述处理器101相连接的存储器103，以及通过总线接口与处理器101相连接的收发机102；所述存储器用于存储所述处理器在执行操作时所使用的程序和数据；通过所述收发机102发送控制命令等；当处理器调用并执行所述存储器中所存储的程序和数据时，执行以下操作：
在本终端处于非激活态时，检测到本终端从第一RAN接入至第二RAN，其中，第一RAN为新空口NR***的RAN；
所述终端将自身状态从所述非激活态切换为空闲态，并继续在本地保留所 述终端在NR***中处于非激活态时的用户上下文信息。
其中，在图10中，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101代表的一个或多个处理器和存储器103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***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。收发机102可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器101负责管理总线架构和通常的处理，存储器103可以存储处理器101在执行操作时所使用的数据。
处理器101负责管理总线架构和通常的处理，存储器103可以存储处理器101在执行操作时所使用的数据。
基于以上实施例提供的移动性管理方法，本公开一些实施例提供了实施上述方法的NR***的核心网设备。请参照图11，本实施例提供了一种新空口NR***的第一核心网，包括：
第一接收单元111，用于接收第一RAN中的第一基站在RAN级别的位置区域RNA内无法寻呼到处于非激活态的第一终端时发送的寻呼失败消息，所述第一基站为保存有所述第一终端在所述NR***中的用户上下文信息的基站，第一RAN为新空口NR***的RAN。
第一寻呼单元112，用于在核心网级别的位置区域TA内对所述第一终端发起寻呼。
这里，所述第一核心网还包括：
第二接收单元，用于接收第二RAN中的第二终端在上行信令过程触发的RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第二基站，所述第二基站为保存有所述第二终端在所述NR***中的用户上下文信息的基站，所述第二RAN为eLTE***的RAN；
第一处理单元，用于根据所述提示信息，继续保持所述第二终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，以及，向第二基站发送一用于通知所述第二基站继续保持所述第二终端的连接的通知消息。
这里，所述第一核心网还包括：
连接释放单元，用于在所述第二终端的上行信令过程结束后，释放所述第二终端与所述eLTE***之间的连接。
这里，所述第一核心网还包括：
第一寻呼单元，用于在所述连接释放单元释放所述第二终端与所述eLTE***之间的连接之后，若所述第二终端的下行业务到达，则直接在eLTE***的第二RAN中进行寻呼，并在接收到所述第二终端的寻呼响应消息后，将所述第二终端在NR***中NG2连接和GN3连接，从第一基站转移至第二RAN中的对应基站，以及，向第二基站发送一用于通知所述第二基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息。
这里，所述第一核心网还包括：
第三接收单元，用于接收第二RAN中的第三终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第三基站，所述第三基站为保存有所述第三终端在所述NR***中的用户上下文信息的基站，则所述第一核心网还包括：
第二处理单元，用于根据所述提示信息，将所述第三终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，转移至第二RAN中的对应基站，以及，向第三基站发送一用于通知所述第三基站释放所述第三终端的连接以及删除所述第三终端在NR***中处于非激活态时的用户上下文信息的通知消息。
这里，所述RRC连接建立过程为第三终端在发起上行信令过程时触发的，或者在发起上行业务过程时触发的。
请参照图12，本实施例提供了新空口NR***的第一核心网的另一种实现，包括：处理器121；通过总线接口与所述处理器121相连接的存储器123，以及通过总线接口与处理器121相连接的收发机122；所述存储器用于存储所述处理器在执行操作时所使用的程序和数据；通过所述收发机122发送控制命令等；当处理器调用并执行所述存储器中所存储的程序和数据时，执行以下操作：
接收第一RAN中的第一基站在RAN级别的位置区域RNA内无法寻呼到 处于非激活态的第一终端时发送的寻呼失败消息，所述第一基站为保存有所述第一终端在所述NR***中的用户上下文信息的基站，第一RAN为新空口NR***的RAN。
在核心网级别的位置区域TA内对所述第一终端发起寻呼。
其中，在图12中，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121代表的一个或多个处理器和存储器123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***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。收发机122可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器121负责管理总线架构和通常的处理，存储器123可以存储处理器121在执行操作时所使用的数据。
处理器121负责管理总线架构和通常的处理，存储器123可以存储处理器121在执行操作时所使用的数据。
请参照图13，本实施例提供了另一种新空口NR***的第一核心网，包括：
第一接收单元131，用于接收第二RAN中的终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示第一RAN中的第一基站，所述第一基站为保存有所述终端在所述NR***中的用户上下文信息的基站，，所述第一RAN为NR***的RAN，所述第二RAN为LTE***的RAN。
第一发送单元132，用于向第一基站发送一用于通知所述第一基站释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息。
这里，所述第一接收单元131，进一步通过与所述LTE***的EPC之间的接口，接收所述EPC转发的所述提示消息。
请参照图14，本实施例提供了新空口NR***的第一核心网的另一种实现，包括：处理器141；通过总线接口与所述处理器141相连接的存储器143，以及通过总线接口与处理器141相连接的收发机142；所述存储器用于存储所述处理器在执行操作时所使用的程序和数据；通过所述收发机142发送控制命 令等；当处理器调用并执行所述存储器中所存储的程序和数据时，执行以下操作：
接收第二RAN中的终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第一基站，所述第一基站为保存有所述终端在所述NR***中的用户上下文信息的基站，所述第二RAN为LTE***的RAN。
向第一基站发送一用于通知所述第一基站释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息。
其中，在图14中，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141代表的一个或多个处理器和存储器143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***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。收发机142可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器141负责管理总线架构和通常的处理，存储器143可以存储处理器141在执行操作时所使用的数据。
处理器141负责管理总线架构和通常的处理，存储器143可以存储处理器141在执行操作时所使用的数据。
基于以上实施例提供的移动性管理方法，本公开一些实施例提供了实施上述方法的NR***的基站。请参照图15，本实施例提供了一种新空口NR***的第一基站，包括：
寻呼单元151，用于在第一RAN内的RAN级别的位置区域RNA内发起对处于非激活态的第一终端的寻呼，所述第一基站保存有所述第一终端在所述NR***中处于非激活态时的用户上下文信息，第一RAN为新空口NR***的RAN。
第一发送单元152，用于若第一RAN在所述RNA内无法寻呼到所述第一终端，则向所述NR***的第一核心网发送一表示在RNA内无法寻呼到第一终端时发送的寻呼失败消息。
这里，所述第一基站还包括：
第一接收单元，用于接收第一核心网发送的一用于通知所述第一基站继续保持第二终端的连接的通知消息；
第一处理单元，用于根据所述通知消息，启动一计时器，并在所述计时器超时前，保持所述第二终端在NR***中的连接，保留所述第二终端在NR***中处于非激活态时的用户上下文信息，以及，在所述计时器超时后，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
这里，所述第一基站还包括：
第二接收单元，用于接收第一核心网发送的一用于通知所述第一基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息；
第二处理单元，用于根据所述通知消息，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
请参照图16，本实施例提供了新空口NR***的第一基站的另一种实现，包括：处理器161；通过总线接口与所述处理器161相连接的存储器163，以及通过总线接口与处理器161相连接的收发机162；所述存储器用于存储所述处理器在执行操作时所使用的程序和数据；通过所述收发机162发送控制命令等；当处理器调用并执行所述存储器中所存储的程序和数据时，执行以下操作：
在第一RAN内的RAN级别的位置区域RNA内发起对处于非激活态的第一终端的寻呼，所述第一基站保存有所述第二终端在所述NR***中处于非激活态时的用户上下文信息，第一RAN为新空口NR***的RAN。
若第一RAN在所述RNA内无法寻呼到所述第一终端，则向所述NR***的第一核心网发送一表示在RNA内无法寻呼到第一终端时发送的寻呼失败消息。
其中，在图16中，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161代表的一个或多个处理器和存储器163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***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。收发机162可以是多个元件，即包括发 送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器161负责管理总线架构和通常的处理，存储器163可以存储处理器161在执行操作时所使用的数据。
处理器161负责管理总线架构和通常的处理，存储器163可以存储处理器151在执行操作时所使用的数据。
请参照图17，本公开实施例另一种新空口NR***的第一基站，包括：
接收单元171，用于接收所述NR***的第一核心网发送的一用于通知所述第一基站释放终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息；
释放单元172，用于根据所述通知消息，释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息。
请参照图18，本公开实施例另一种新空口NR***的第一基站的又一种实现，包括：处理器181；通过总线接口与所述处理器181相连接的存储器183，以及通过总线接口与处理器181相连接的收发机182；所述存储器用于存储所述处理器在执行操作时所使用的程序和数据；通过所述收发机182发送控制命令等；当处理器调用并执行所述存储器中所存储的程序和数据时，执行以下操作：
接收所述NR***的第一核心网发送的一用于通知所述第一基站释放终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息；
根据所述通知消息，释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息。
其中，在图18中，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181代表的一个或多个处理器和存储器183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***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。收发机182可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器181负责管理总线架构和通常的处理，存储器183可以存储处理器181在执行 操作时所使用的数据。
处理器181负责管理总线架构和通常的处理，存储器183可以存储处理器181在执行操作时所使用的数据。
以上介绍了本公开实施例的移动性管理方法及实施上述方法的核心网及基站。接下来将进一步通过若干完整流程的示例，对本公开作进一步的描述。
<示例1>
示例1的场景为：inactive态的终端(UE)从NR的RAN进入eLTE网络的RAN，且UE在eLTE网络发起上行信令。
示例1的网络架构如背景技术中的图2所示，具体场景如图19所示，该UE在NR进入inactive状态，gNB和UE侧都保留一套该UE在NR***中处于非激活态时的用户上下文信息(NR UE context)。同时gNB可以给UE配置一个NR UE context的有效时间计时器(timer)。之后，UE从NR网络进入eLTE网络。一旦UE进入eLTE，则启动该timer。如果gNB没有配置该timer或者把该timer配置成无限大，则UE一直保存NR UE context。
UE进入eLTE网络后，进入idle态，仍然保留NR的UE context，并启动有效timer(如果有)。在有效timer(如果有)超时之前，如果UE回到NR，则直接恢复inactive状态，并且恢复NR UE context。可选的，UE在NR做一次RNA更新。在timer超时后，UE删除NR UE context。
在timer(如果有)运行期间，UE发起TAU过程，触发了RRC连接建立过程，在连接建立过程中，UE将当前的UE标识(比如S-TMSI)，或者与NRUE context关联的inactive UE ID或者保存着NR UE context的gNB标识通知给网络，使NGC获知UE已经进入eLTE网络。
NGC获知UE已经进入eLTE网络后，NGC可以继续保持gNB和NGC的连接，并通知gNB也保持连接(NGC基于UE标识，或者inactive UE ID，或者保存着NR UE context的gNB标识找到该gNB)，NR基站启动NR UE context的有效时间定时器(timer)，在timer运行期间保持NRUE context，timer超时后删除NR UE context。当信令过程结束后，NGC释放UE在eLTE的连接。如果后续有下行业务要发送给UE，且NGC知道UE并未回到NR，则NGC直接在eLTE中进行寻呼，在UE响应寻呼之后，将该UE的NG2和NG3 接口从gNB转移到eLTE基站(比如在eLTE建立相关接口，并通知gNB释放之前的接口并删除NR UE context)。UE收到寻呼后，停止NR UE context定时器(如果有)，并删除NR UE context。
NGC获知UE已经进入eLTE网络后，另一种实现方式为：NGC直接将该UE的NG2和NG3接口从gNB转移到eLTE基站(比如在eLTE建立相关接口，并通知gNB释放之前的接口和NR UE context)。而UE在发起RRC连接建立时，就停止NR UE context定时器(如果有)，并删除NR UE context。
<示例2>
示例2的场景为：inactive态UE从NR的RAN进入eLTE网络的RAN，且UE在eLTE网络发起上行业务。
示例2的网络架构和具体场景均与示例1相同。该UE在NR进入inactive状态，gNB和UE侧都保留一套NR UE context。同时gNB可以给UE配置一个NR UE context的有效时间计时器(timer)，一旦UE进入eLTE，则启动该timer。如果gNB没有配置该timer或者把该timer配置成无限大，则UE一直保存NR UE context。
inactive状态的UE从NR网络进入eLTE网络后，进入idle态，仍然保留NR的UE context，并启动有效timer(如果有)。在有效timer(如果有)超时之前，如果UE回到NR，则直接恢复inactive状态，并且恢复NR UE context，可选的，UE在NR做一次RNA更新。在timer超时后，UE删除NR UE context。
在timer(如果有)运行期间，UE发起上行数据传输过程，触发了RRC连接建立过程，eLTE基站接受该UE的RRC连接建立请求，并与NGC建立该UE的连接，之后NGC将该UE的NG2和NG3接口从gNB转移到eLTE基站。UE在发起RRC连接建立时，就停止NRUE context定时器(如果有)，并删除NR UE context。
<示例3>
示例3的场景为：inactive态UE从NR的RAN进入eLTE网络RAN，且网络发起下行信令或下行业务
示例3的网络架构和具体场景均与示例1相同。该UE在NR进入inactive状态，gNB和UE侧都保留一套NR UE context。同时gNB可以给UE配置一 个NR UE context的有效时间计时器(timer)，一旦UE进入eLTE，则启动该timer。如果gNB没有配置该timer或者把该timer配置成无限大，则UE一直保存NR UE context。
inactive状态的UE从NR网络进入eLTE网络，UE进入eLTE网络后，进入idle态，仍然保留NR的UE context，并启动有效timer(如果有)。在有效timer(如果有)超时之前，如果UE回到NR，则直接恢复inactive状态，并且恢复NR UE context，可选的，UE在NR做一次RNA更新。在timer超时后，UE删除NR UE context。
在timer(如果有)运行期间，UE在eLTE网络没有发起任何上行传输，则NGC仍认为UE在NR网络中，此时在NR网络中如果有下行业务或者信令到达gNB，则会触发gNB进行RAN侧的寻呼，当gNB无法在RAN范围内寻呼到UE时，gNB会通知NGC(可选的，gNB删除NR UE context)，由NGC进行核心网寻呼(在TA范围内寻呼)，后续UE从eLTE响应寻呼，发起上行过程，上行过程可以采用示例1或示例2中的方式。
<示例4>
示例4的场景为：inactive态UE从NR进入eLTE网络，没有上下行业务/信令。
示例4的网络架构和具体场景均与示例1相同。该UE在NR进入inactive状态，gNB和UE侧都保留一套NR UE context。同时gNB可以给UE配置一个NR UE context的有效时间计时器(timer)，一旦UE进入eLTE，则启动该timer。如果gNB没有配置该timer或者把该timer配置成无限大，则UE一直保存NR UE context。
inactive状态的UE从NR网络进入eLTE网络，UE进入eLTE网络后，进入idle态，仍然保留NR的UE context，并启动有效timer(如果有)。在有效timer(如果有)运行期间，UE在eLTE网络一直没有上下行业务/信令发起，后续UE又回到NR网络，则直接进入inactive状态，并且恢复NR UE context，停止timer。可选的，UE在NR做一次RNA更新。
如果UE在eLTE网络时，timer运行超时，则UE删除NRUE context。
<示例5>
示例5的场景为：inactive态UE从NR进入LTE网络
示例5的如背景技术中的图3所示，具体场景如图20所示。该UE在NR进入inactive状态，gNB和UE侧都保留一套NR UE context。同时gNB可以给UE配置一个NRUE context的有效时间定时器(timer)，一旦UE进入LTE，则启动该timer。如果gNB没有配置该timer或者把该timer配置成无限大，则UE一直保存NRUE context。
inactive状态的UE从NR网络进入LTE网络。UE进入LTE网络后，进入idle态，仍然保留NR的UE context，并启动有效timer(如果有)。后续UE发起RRC连接建立，UE将当前的UE标识(比如S-TMSI)，或者与NR UEcontext关联的inactive UE ID或者保存着NR UE context的gNB标识通知给网络，同时UE停止NR UE context定时器(如果有)，并删除NR UE context。LTE的EPC将UE进入LTE网络的信息通知NGC，NGC基于UE标识，或者inactive UE ID，或者保存着NR UE context的gNB标识找到保存着NR UEcontext的gNB，通知该gNB释放NR UE context，并且释放UE在NR网络中的连接(包括NG2和NG3接口)。
综上，本公开实施例提供的移动性管理方法、核心网及基站，其中，inactive态的UE从NR网络进入eLTE/LTE网络后，仍然保留NR UE context，直到满足某些条件，才删除NR UE context，具体条件可以包括UE在eLTE/LTE网络中发起RRC连接建立，收到寻呼或者NR UE context有效计时器超时。通过以上处理，本公开实施例实现了对inactive态的UE的inter-RAT移动性管理，可以解决异***之间的移动性问题，使终端可以正常工作。
以上所述是本公开的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (49)

  1. 一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述方法包括：
    处于非激活态的终端，检测到本终端从第一RAN接入至第二RAN；
    所述终端将自身状态从所述非激活态切换为空闲态，并继续在本地保留所述终端在NR***中处于非激活态时的用户上下文信息。
  2. 如权利要求1所述的方法，其中，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，所述方法还包括：
    若所述终端检测到本终端重新接入回第一RAN，则将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息。
  3. 如权利要求1所述的方法，其中，所述第二RAN为eLTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，若所述终端在第二RAN中发起上行信令过程，则所述方法还包括：
    在所述上行信令过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；
    在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  4. 如权利要求1所述的方法，其中，所述第二RAN为eLTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，若所述终端在第二RAN中发起上行业务过程，则所述方法还包括：
    在所述上行业务过程触发建立RRC连接过程中，所述终端将保存有所述 终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；
    在所述上行业务过程触发建立RRC连接过程中，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  5. 如权利要求1所述的方法，其中，所述第二RAN为LTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，所述方法还包括：
    若所述终端发起RRC连接建立过程，则所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
  6. 如权利要求1所述的方法，其中，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，所述方法还包括：
    所述终端启动一由NR***预先配置的计时器；
    在所述计时器超时前，若所述终端检测到本终端重新接入回第一RAN，则停止所述计时器，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息；
    在所述计时器超时后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  7. 如权利要求6所述的方法，其中，所述第二RAN为eLTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，若在所述计时器超时前，所述终端在第二RAN中发起上行信令过程，则所述方法还包括：
    在所述上行信令过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息 发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；
    在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  8. 如权利要求6所述的方法，其中，所述第二RAN为eLTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，若在所述计时器超时前，所述终端在第二RAN中发起上行业务过程，则所述方法还包括：
    在所述上行业务过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；
    在所述上行业务过程触发建立RRC连接过程中，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  9. 如权利要求6所述的方法，其中，所述第二RAN为LTE***的RAN，在所述终端将自身状态从所述非激活态切换为空闲态的步骤之后，所述方法还包括：
    若在所述计时器超时前，所述终端发起RRC连接建立过程，则所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
  10. 如权利要求2所述的方法，其中，在所述将自身状态切换回非激活态的步骤之后，所述方法还包括：
    所述终端发起RAN级别的位置区域RNA更新过程，进行RNA更新。
  11. 一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一 无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述第二RAN为eLTE***的RAN，所述方法包括：
    所述NR***的第一核心网接收第一RAN中的第一基站在RAN级别的位置区域RNA内无法寻呼到处于非激活态的第一终端时发送的寻呼失败消息，所述第一基站为保存有所述第一终端在所述NR***中的用户上下文信息的基站；
    所述第一核心网在核心网级别的位置区域TA内对所述第一终端发起寻呼。
  12. 如权利要求11所述的方法，其中，
    若所述NR***的第一核心网接收第二RAN中的第二终端在上行信令过程触发的RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第二基站，所述第二基站为保存有所述第二终端在所述NR***中的用户上下文信息的基站；则所述方法还包括：
    第一核心网根据所述提示信息，继续保持所述第二终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，以及，向第二基站发送一用于通知所述第二基站继续保持所述第二终端的连接的通知消息。
  13. 如权利要求12所述的方法，其中，在所述第二终端的上行信令过程结束后，所述方法还包括：
    所述第一核心网释放所述第二终端与所述eLTE***之间的连接。
  14. 如权利要求13所述的方法，其中，在释放所述第二终端与所述eLTE***之间的连接的步骤之后，所述方法还包括：
    第一核心网在所述第二终端的下行业务到达时，直接在eLTE***的第二RAN中进行寻呼，并在接收到所述第二终端的寻呼响应消息后，将所述第二终端在NR***中NG2连接和GN3连接，从第一基站转移至第二RAN中的对应基站，以及，向第二基站发送一用于通知所述第二基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息。
  15. 如权利要求11所述的方法，其中，
    若所述NR***的第一核心网接收到第二RAN中的第三终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第三基站，所述第三基站为保存有所述第三终端在所述NR***中的用户上下文信息的基站，则所述方法还包括：
    第一核心网根据所述提示信息，将所述第三终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，转移至第二RAN中的对应基站，以及，向第三基站发送一用于通知所述第三基站释放所述第三终端的连接以及删除所述第三终端在NR***中处于非激活态时的用户上下文信息的通知消息。
  16. 如权利要求15所述的方法，其中，所述RRC连接建立过程为第三终端在发起上行信令过程时触发的，或者在发起上行业务过程时触发的。
  17. 一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述第二RAN为LTE***的RAN，所述方法包括：
    所述NR***的第一核心网接收第二RAN中的终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第一基站，所述第一基站为保存有所述终端在所述NR***中的用户上下文信息的基站；
    第一核心网根据所述提示信息，向第一基站发送一用于通知所述第一基站释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息。
  18. 如权利要求17所述的方法，其中，所述第一核心网进一步通过与所述LTE***的EPC之间的接口，接收所述EPC转发的所述提示消息。
  19. 一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述第二RAN为eLTE***的RAN，所述方法包括：
    第一RAN中的第一基站，在RAN级别的位置区域RNA内发起对处于非 激活态的第一终端的寻呼，所述第一基站保存有所述第一终端在所述NR***中处于非激活态时的用户上下文信息；
    若第一RAN在所述RNA内无法寻呼到所述第一终端，则向所述NR***的第一核心网发送一表示在RNA内无法寻呼到第一终端时发送的寻呼失败消息。
  20. 如权利要求19所述的方法，其中，
    若第一基站接收到第一核心网发送的一用于通知所述第一基站继续保持第二终端的连接的通知消息，则所述方法包括：
    第一基站根据所述通知消息，启动一计时器，并在所述计时器超时前，保持所述第二终端在NR***中的连接，保留所述第二终端在NR***中处于非激活态时的用户上下文信息，以及，在所述计时器超时后，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
  21. 如权利要求20所述的方法，其中，
    若第一基站接收到第一核心网发送的一用于通知所述第一基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息，则所述方法包括：
    第一基站根据所述通知消息，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
  22. 一种无线接入网络间的移动性管理方法，所述无线接入网络包括第一无线接入网络RAN和第二RAN，其中，第一RAN为新空口NR***的RAN，所述第二RAN为LTE***的RAN，所述方法包括：
    所述NR***的第一基站，接收所述NR***的第一核心网发送的一用于通知所述第一基站释放终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息；
    第一基站根据所述通知消息，释放所述终端的连接以及删除所述终端在 NR***中处于非激活态时的用户上下文信息。
  23. 一种终端，包括：
    第一检测单元，用于在本终端处于非激活态时，检测到本终端从第一RAN接入至第二RAN，其中，第一RAN为新空口NR***的RAN；
    第一切换单元，用于所述终端将自身状态从所述非激活态切换为空闲态，并继续在本地保留所述终端在NR***中处于非激活态时的用户上下文信息。
  24. 如权利要求23所述的终端，还包括：
    第二检测单元，用于检测到本终端重新接入回第一RAN；
    第二切换单元，用于在第二检测单元检测到本终端重新接入回第一RAN时，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息。
  25. 如权利要求23所述的终端，其中，所述第二RAN为eLTE***的RAN，所述终端还包括：
    第一信令发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在第二RAN中发起上行信令过程，并在所述上行信令过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  26. 如权利要求23所述的终端，其中，所述第二RAN为eLTE***的RAN，所述终端还包括：
    第一业务发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在第二RAN中发起上行业务过程，并在所述上行业务过程触发建立RRC连接过程中，所述终端将保存有所述终端在NR***中处于非激活态时的用户 上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行业务过程触发建立RRC连接过程中，所述终端删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  27. 如权利要求23所述的终端，其中，所述第二RAN为LTE***的RAN，所述终端还包括：
    第一连接建立单元，用于在将终端状态从所述非激活态切换为空闲态之后，若发起RRC连接建立过程，则删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
  28. 如权利要求23所述的终端，其中，所述终端还包括：
    计时处理单元，用于在将终端状态从所述非激活态切换为空闲态之后，启动一由NR***预先配置的计时器；以及，在所述计时器超时前，若所述终端检测到本终端重新接入回第一RAN，则停止所述计时器，将自身状态切换回非激活态，并恢复所述终端在NR***中处于非激活态时的用户上下文信息；在所述计时器超时后，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  29. 如权利要求28所述的终端，其中，所述第二RAN为eLTE***的RAN，所述终端还包括：
    第二信令发起单元，用于在将终端状态从所述非激活态切换为空闲态的步骤之后，若在所述计时器超时前，在第二RAN中发起上行信令过程，则在所述上行信令过程触发建立RRC连接过程中，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活 态终端标识、或第一基站的标识；以及，在所述上行信令过程触发建立RRC连接过程中，或者在所述上行信令过程结束后接收到网络侧发送的寻呼消息后，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  30. 如权利要求28所述的终端，其中，所述第二RAN为eLTE***的RAN，所述终端还包括：
    第二业务发起单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在所述计时器超时前，在第二RAN中发起上行业务过程，则在所述上行业务过程触发建立RRC连接过程中，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识；以及，在所述上行业务过程触发建立RRC连接过程中，删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息。
  31. 如权利要求28所述的终端，其中，所述第二RAN为LTE***的RAN，所述终端还包括：
    第二连接建立单元，用于在将终端状态从所述非激活态切换为空闲态之后，若在所述计时器超时前，发起RRC连接建立过程，则删除本地保留的所述终端在NR***中处于非激活态时的用户上下文信息，以及，将保存有所述终端在NR***中处于非激活态时的用户上下文信息的第一基站的提示信息发送给网络侧，所述提示信息为所述终端的当前终端标识、或与所述用户上下文信息关联的非激活态终端标识、或第一基站的标识。
  32. 如权利要求24所述的终端，还包括：
    更新单元，用于在将终端状态切换回非激活态之后，发起RAN级别的位置区域RNA更新过程，进行RNA更新。
  33. 一种新空口NR***的第一核心网，包括：
    第一接收单元，用于接收第一RAN中的第一基站在RAN级别的位置区域RNA内无法寻呼到处于非激活态的第一终端时发送的寻呼失败消息，所述 第一基站为保存有所述第一终端在所述NR***中的用户上下文信息的基站，第一RAN为新空口NR***的RAN；
    第一寻呼单元，用于在核心网级别的位置区域TA内对所述第一终端发起寻呼。
  34. 如权利要求33所述的第一核心网，还包括：
    第二接收单元，用于接收第二RAN中的第二终端在上行信令过程触发的RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第二基站，所述第二基站为保存有所述第二终端在所述NR***中的用户上下文信息的基站，所述第二RAN为eLTE***的RAN；
    第一处理单元，用于根据所述提示信息，继续保持所述第二终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，以及，向第二基站发送一用于通知所述第二基站继续保持所述第二终端的连接的通知消息。
  35. 如权利要求34所述的第一核心网，还包括：
    连接释放单元，用于在所述第二终端的上行信令过程结束后，释放所述第二终端与所述eLTE***之间的连接。
  36. 如权利要求35所述的第一核心网，还包括：
    第一寻呼单元，用于在所述连接释放单元释放所述第二终端与所述eLTE***之间的连接之后，若所述第二终端的下行业务到达，则直接在eLTE***的第二RAN中进行寻呼，并在接收到所述第二终端的寻呼响应消息后，将所述第二终端在NR***中NG2连接和GN3连接，从第一基站转移至第二RAN中的对应基站，以及，向第二基站发送一用于通知所述第二基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息。
  37. 如权利要求33所述的第一核心网，还包括：
    第三接收单元，用于接收第二RAN中的第三终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示所述第一RAN中的第三基站， 所述第三基站为保存有所述第三终端在所述NR***中的用户上下文信息的基站，则所述第一核心网还包括：
    第二处理单元，用于根据所述提示信息，将所述第三终端在NR***中的控制面接口NG2连接和用户面接口GN3连接，转移至第二RAN中的对应基站，以及，向第三基站发送一用于通知所述第三基站释放所述第三终端的连接以及删除所述第三终端在NR***中处于非激活态时的用户上下文信息的通知消息。
  38. 如权利要求37所述的第一核心网，其中，所述RRC连接建立过程为第三终端在发起上行信令过程时触发的，或者在发起上行业务过程时触发的。
  39. 一种新空口NR***的第一核心网，包括：
    第一接收单元，用于接收第二RAN中的终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示第一RAN中的第一基站，所述第一基站为保存有所述终端在所述NR***中的用户上下文信息的基站，所述第一RAN为NR***的RAN，所述第二RAN为LTE***的RAN；
    第一发送单元，用于向第一基站发送一用于通知所述第一基站释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息。
  40. 如权利要求39所述的第一核心网，其中，所述第一接收单元，进一步通过与所述LTE***的EPC之间的接口，接收所述EPC转发的所述提示消息。
  41. 一种新空口NR***的无线接入网络的第一基站，包括：
    寻呼单元，用于在第一RAN内的RAN级别的位置区域RNA内发起对处于非激活态的第一终端的寻呼，所述第一基站保存有所述第一终端在所述NR***中处于非激活态时的用户上下文信息，第一RAN为新空口NR***的RAN；
    第一发送单元，用于若第一RAN在所述RNA内无法寻呼到所述第一终 端，则向所述NR***的第一核心网发送一表示在RNA内无法寻呼到第一终端时发送的寻呼失败消息。
  42. 如权利要求41所述的第一基站，还包括：
    第一接收单元，用于接收第一核心网发送的一用于通知所述第一基站继续保持第二终端的连接的通知消息；
    第一处理单元，用于根据所述通知消息，启动一计时器，并在所述计时器超时前，保持所述第二终端在NR***中的连接，保留所述第二终端在NR***中处于非激活态时的用户上下文信息，以及，在所述计时器超时后，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
  43. 如权利要求42所述的第一基站，还包括：
    第二接收单元，用于接收第一核心网发送的一用于通知所述第一基站释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息的通知消息；
    第二处理单元，用于根据所述通知消息，释放所述第二终端的连接以及删除所述第二终端在NR***中处于非激活态时的用户上下文信息。
  44. 一种新空口NR***的无线接入网络的第一基站，包括：
    接收单元，用于接收所述NR***的第一核心网发送的一用于通知所述第一基站释放终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息；
    释放单元，用于根据所述通知消息，释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息。
  45. 一种终端，包括处理器，通过总线接口与处理器相连接的存储器，以及通过总线接口与处理器相连接的收发机；
    所述处理器用于读取所述存储器中的程序以执行下列操作：
    在本终端处于非激活态时，检测到本终端从第一RAN接入至第二 RAN，其中，第一RAN为新空口NR***的RAN；
    将所述终端自身状态从所述非激活态切换为空闲态，并继续在本地保留所述终端在NR***中处于非激活态时的用户上下文信息；
    所述收发机用于接收和发送数据；
    所述存储器用于保存所述处理器执行操作时所使用的数据。
  46. 一种新空口NR***的第一核心网，包括处理器，通过总线接口与处理器相连接的存储器，以及通过总线接口与处理器相连接的收发机；
    所述处理器用于读取所述存储器中的程序以执行下列操作：
    接收第一RAN中的第一基站在RAN级别的位置区域RNA内无法寻呼到处于非激活态的第一终端时发送的寻呼失败消息，所述第一基站为保存有所述第一终端在所述NR***中的用户上下文信息的基站，第一RAN为新空口NR***的RAN；
    在核心网级别的位置区域TA内对所述第一终端发起寻呼；
    所述收发机用于接收和发送数据；
    所述存储器用于保存所述处理器执行操作时所使用的数据。
  47. 一种新空口NR***的第一核心网，包括处理器，通过总线接口与处理器相连接的存储器，以及通过总线接口与处理器相连接的收发机；
    所述处理器用于读取所述存储器中的程序以执行下列操作：
    接收第二RAN中的终端在RRC连接建立过程中发送的一提示信息，所述提示信息用于提示第一RAN中的第一基站，所述第一基站为保存有所述终端在所述NR***中的用户上下文信息的基站，所述第一RAN为NR***的RAN，所述第二RAN为LTE***的RAN；
    向第一基站发送一用于通知所述第一基站释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息；
    所述收发机用于接收和发送数据；
    所述存储器用于保存所述处理器执行操作时所使用的数据。
  48. 一种新空口NR***的无线接入网络的第一基站，包括处理器，通过总线接口与处理器相连接的存储器，以及通过总线接口与处理器相连接的收发机；
    所述处理器用于读取所述存储器中的程序以执行下列操作：
    在第一RAN内的RAN级别的位置区域RNA内发起对处于非激活态的第一终端的寻呼，所述第一基站保存有所述第一终端在所述NR***中处于非激活态时的用户上下文信息，第一RAN为新空口NR***的RAN；
    若第一RAN在所述RNA内无法寻呼到所述第一终端，则向所述NR***的第一核心网发送一表示在RNA内无法寻呼到第一终端时发送的寻呼失败消息；
    所述收发机用于接收和发送数据；
    所述存储器用于保存所述处理器执行操作时所使用的数据。
  49. 一种新空口NR***的无线接入网络的第一基站，包括处理器，通过总线接口与处理器相连接的存储器，以及通过总线接口与处理器相连接的收发机；
    所述处理器用于读取所述存储器中的程序以执行下列操作：
    接收所述NR***的第一核心网发送的一用于通知所述第一基站释放终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息的通知消息；
    根据所述通知消息，释放所述终端的连接以及删除所述终端在NR***中处于非激活态时的用户上下文信息；
    所述收发机用于接收和发送数据；
    所述存储器用于保存所述处理器执行操作时所使用的数据。
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111771406A (zh) * 2020-05-08 2020-10-13 北京小米移动软件有限公司 发送寻呼消息的方法、装置、通信设备及存储介质
CN111837411A (zh) * 2020-05-21 2020-10-27 北京小米移动软件有限公司 信息发送方法、基站切换方法、信息接收方法以及装置
CN112262600A (zh) * 2020-08-20 2021-01-22 北京小米移动软件有限公司 扩展非连续接收参数确定方法、通信设备和存储介质
CN112637906A (zh) * 2019-08-16 2021-04-09 华为技术有限公司 寻呼的方法和装置
CN112689278A (zh) * 2020-12-22 2021-04-20 浪潮软件科技有限公司 一种移动过程中终端识别方法
US20210337623A1 (en) * 2017-11-16 2021-10-28 FG Innovation Company Limited Radio access network notification area configuration and management
CN114513832A (zh) * 2020-10-23 2022-05-17 大唐移动通信设备有限公司 终端设备定位方法、装置、设备及存储介质
CN115038050A (zh) * 2021-03-05 2022-09-09 ***通信有限公司研究院 业务通知方法、装置、设备及可读存储介质
EP3989631A4 (en) * 2019-06-18 2023-06-28 China Telecom Corporation Limited Inter-system measurement information transmission method and system, and computer readable storage medium

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3834482B1 (en) * 2018-08-10 2023-04-19 FG Innovation Company Limited Method and apparatus for rrc state transition
CN111491338B (zh) * 2019-01-28 2022-04-22 华为技术有限公司 上下文存储方法及装置
WO2020156488A1 (zh) * 2019-01-31 2020-08-06 华为技术有限公司 一种通信方法、装置及***
CN112543455B (zh) 2019-01-31 2022-03-29 华为技术有限公司 一种通信方法、装置及***
CN111586619A (zh) * 2019-02-15 2020-08-25 华为技术有限公司 一种多种网络制式下的通信方法及装置
CN111615167B (zh) * 2019-02-26 2023-03-17 大唐移动通信设备有限公司 一种位置报告的方法、无线接入网实体及计算机存储介质
CN112040556B (zh) * 2019-06-03 2022-12-27 华为技术有限公司 一种通信方法及设备
CN110290565B (zh) * 2019-06-26 2021-11-23 中信科移动通信技术股份有限公司 接入层上下文管理方法和装置
CN112399507B (zh) * 2019-08-16 2022-08-19 华为技术有限公司 用于传输数据的方法、终端设备和网络设备
CN112423317B (zh) * 2019-08-23 2022-08-02 大唐移动通信设备有限公司 异网切换处理方法、信息配置方法、用户设备及网络设备
WO2021160096A1 (zh) * 2020-02-13 2021-08-19 华为技术有限公司 一种私网签约信息更新方法及装置
WO2021217571A1 (zh) * 2020-04-30 2021-11-04 北京小米移动软件有限公司 终端状态切换处理、控制方法及装置、通信设备及介质
CN113676995A (zh) * 2020-05-14 2021-11-19 维沃移动通信有限公司 终呼处理方法及装置、终端设备和网络设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8369281B2 (en) * 2008-11-24 2013-02-05 At&T Intellectual Property I, L.P. Cell-to-WiFi switcher
CN105072694A (zh) * 2015-08-18 2015-11-18 大唐移动通信设备有限公司 一种ue上下线调度的方法及装置
CN105898894A (zh) * 2016-05-13 2016-08-24 华为技术有限公司 Rrc状态的控制方法和装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8369281B2 (en) * 2008-11-24 2013-02-05 At&T Intellectual Property I, L.P. Cell-to-WiFi switcher
CN105072694A (zh) * 2015-08-18 2015-11-18 大唐移动通信设备有限公司 一种ue上下线调度的方法及装置
CN105898894A (zh) * 2016-05-13 2016-08-24 华为技术有限公司 Rrc状态的控制方法和装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
3GPP TSG-RAN WG2 #96 R2-168077, 13 November 2016 (2016-11-13), XP051177773, Retrieved from the Internet <URL:http://ww.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN2/Docs/.> *
CATT., 3GPP TSG-RAN WG2 MEETING #96 , R2-167964, 13 November 2016 (2016-11-13), XP051177692, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN2/Docs/.> *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210337623A1 (en) * 2017-11-16 2021-10-28 FG Innovation Company Limited Radio access network notification area configuration and management
US11856635B2 (en) * 2017-11-16 2023-12-26 FG Innovation Company Limited Radio access network notification area configuration and management
EP3989631A4 (en) * 2019-06-18 2023-06-28 China Telecom Corporation Limited Inter-system measurement information transmission method and system, and computer readable storage medium
CN112637906A (zh) * 2019-08-16 2021-04-09 华为技术有限公司 寻呼的方法和装置
CN111771406B (zh) * 2020-05-08 2023-10-17 北京小米移动软件有限公司 发送寻呼消息的方法、装置、通信设备及存储介质
CN111771406A (zh) * 2020-05-08 2020-10-13 北京小米移动软件有限公司 发送寻呼消息的方法、装置、通信设备及存储介质
CN111837411B (zh) * 2020-05-21 2024-01-09 北京小米移动软件有限公司 信息发送方法、基站切换方法、信息接收方法以及装置
CN111837411A (zh) * 2020-05-21 2020-10-27 北京小米移动软件有限公司 信息发送方法、基站切换方法、信息接收方法以及装置
CN112262600B (zh) * 2020-08-20 2024-01-30 北京小米移动软件有限公司 扩展非连续接收参数确定方法、通信设备和存储介质
CN112262600A (zh) * 2020-08-20 2021-01-22 北京小米移动软件有限公司 扩展非连续接收参数确定方法、通信设备和存储介质
CN114513832A (zh) * 2020-10-23 2022-05-17 大唐移动通信设备有限公司 终端设备定位方法、装置、设备及存储介质
CN114513832B (zh) * 2020-10-23 2024-04-16 大唐移动通信设备有限公司 终端设备定位方法、装置、设备及存储介质
CN112689278B (zh) * 2020-12-22 2023-10-31 浪潮通信技术有限公司 一种移动过程中终端识别方法
CN112689278A (zh) * 2020-12-22 2021-04-20 浪潮软件科技有限公司 一种移动过程中终端识别方法
CN115038050B (zh) * 2021-03-05 2023-09-05 ***通信有限公司研究院 业务通知方法、装置、设备及可读存储介质
CN115038050A (zh) * 2021-03-05 2022-09-09 ***通信有限公司研究院 业务通知方法、装置、设备及可读存储介质

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