WO2019033945A1 - Procédé et dispositif de traitement de non-correspondance entre un équipement utilisateur et un état de réseau - Google Patents

Procédé et dispositif de traitement de non-correspondance entre un équipement utilisateur et un état de réseau Download PDF

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Publication number
WO2019033945A1
WO2019033945A1 PCT/CN2018/098683 CN2018098683W WO2019033945A1 WO 2019033945 A1 WO2019033945 A1 WO 2019033945A1 CN 2018098683 W CN2018098683 W CN 2018098683W WO 2019033945 A1 WO2019033945 A1 WO 2019033945A1
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Prior art keywords
ran node
context
determining
user plane
receiving
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PCT/CN2018/098683
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English (en)
Chinese (zh)
Inventor
王胡成
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电信科学技术研究院有限公司
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Priority claimed from CN201710855403.8A external-priority patent/CN109548109B/zh
Application filed by 电信科学技术研究院有限公司 filed Critical 电信科学技术研究院有限公司
Priority to KR1020207007501A priority Critical patent/KR20200038295A/ko
Priority to EP18846130.5A priority patent/EP3672327B1/fr
Priority to US16/639,124 priority patent/US11212864B2/en
Priority to JP2020508609A priority patent/JP2020530731A/ja
Publication of WO2019033945A1 publication Critical patent/WO2019033945A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a processing method and apparatus for UE and network status mismatch.
  • 3GPP 3rd Generation Partnership Project
  • 5G The Fifith Generation Mobile Network
  • 3GPP introduces a new RRC (Radio Resource Control) state, that is, RRC inactive (RRC inactive state).
  • RRC inactive Radio Resource Control inactive state
  • the UE User Equipment
  • the RRC connection between the RAN (Radio Access Network) node and the UE has been released, but the connection of the Nx interface remains.
  • the RRC inactive state is required to be transparent to the core network, that is, the core network still considers that the UE is always in the connected state, so the RAN node receives the downlink signaling or data of the UE in this state, and the RAN node needs to page the UE, that is, RAN level Paging (RAN level paging).
  • RAN level Paging RAN level paging
  • the RAN node In order to support RAN level Paging, the RAN node needs to support the RAN level (Paging Area Update), that is, the RAN node allocates a paging area for the UE in the RRC inactive state. When the UE moves out of the Paging area, the UE needs to initiate a Paging area update process, and the RAN node allocates a new Paging area to the UE at this time. If the RAN anchor node of the currently serving UE changes due to the movement of the UE, Context (Context) transmission needs to be performed between the RAN anchor nodes, and the N2 interface is updated to the core network (the N2 interface is an interface between the RAN and the AMF). )Connection.
  • Paging Area Update the RAN node allocates a paging area for the UE in the RRC inactive state.
  • the UE needs to initiate a Paging area update process, and the RAN node allocates a new Paging area to the UE at this time.
  • the AMF Access and Mobility Management Function
  • the AMF needs to provide auxiliary information to the RAN anchor node, such as registration area (allowed area), allowed DRX (allowed non- Continuous reception), etc., where the registration area is in the registration area to ensure the allocation of the RAN level Paging area.
  • the connection management state of the UE is divided into CM-IDLE (Idle State) and CM-CONNECTED (Connected State).
  • CM-IDLE Idle State
  • CM-CONNECTED Connected State
  • the RAN anchor node receives the downlink data and pages the UE. If the UE moves out of the current RAN Paging area, the RAN enters a RAN that does not support the RRC inactive state. When the node is covered, the UE cannot maintain the RRC inactive state and cannot receive the RAN level Paging of the original RAN anchor node. In this way, the original RAN anchor node will not receive the Paging response of the UE, and will fail after repeating the RAN level Paging multiple times, which will increase the paging overhead, thereby causing waste of air interface resources and packet loss.
  • the embodiments of the present invention provide a method and a device for processing a mismatch between a UE and a network, which are used to solve the technical problem of waste of air interface resources and packet loss in the prior art, and reduce paging overhead and packet loss.
  • an embodiment of the present invention provides a processing method for a user equipment (UE) and a network state mismatch, which is applied to an access and mobility management function (AMF), including: receiving non-access sent by the UE When the layer message or the message of the N2 interface sent by the radio access network (RAN) node is determined, the UE is determined to be in the connected state on the network side; the RAN node serving the UE is determined to be changed, and the original RAN node is notified to release the UE.
  • the context and the existing user plane connection including: receiving non-access sent by the UE
  • the RAN node serving the UE is determined to be changed, and the original RAN node is notified to release the UE.
  • the receiving the non-access stratum message sent by the UE includes: receiving an initial non-access stratum message sent by the UE in an idle state, where the idle state is that the UE controls from a radio resource (RRC)
  • RRC radio resource
  • the receiving the initial non-access stratum message sent by the UE in an idle state comprising: receiving a registration update request message sent by the UE in the idle state; or When the uplink data is sent in the idle state, the request message of the UE is received.
  • the determining that the UE is in a connected state on the network side comprises: determining, according to the saved context of the UE, that the UE is in a connected state on a network side.
  • the notifying the original RAN node to release the context and user plane connection of the UE includes: notifying the original RAN node to release the context of the UE; and deleting the user plane connection with the core network.
  • the method further includes: notifying the original RAN node to release the context of the UE, so that the original RAN node stops paging at the RAN level.
  • the determining that the RAN node serving the UE changes comprises: determining a RAN node that forwards the non-access stratum message or a RAN node that sends an N2 interface message, and the saved RAN in the UE context When the nodes are different, it is determined that the RAN node serving the UE changes.
  • the determining that the RAN node serving the UE changes further comprising: requesting a session management function (SMF) to deactivate the protocol data unit session (PDU)
  • SMF session management function
  • PDU protocol data unit session
  • the method includes: determining that the UE enters a disallowed area or a forbidden area, and notifies the service center
  • the request session management function SMF of the protocol data unit session (PDU session) to which the user plane connection belongs is that the UE is only reachable by the high priority service.
  • the method further includes: requesting a session management function SMF to deactivate the PDU session according to a protocol data unit session (PDU session) specified in the service request message. And then activate the PDU session.
  • PDU session protocol data unit session
  • an embodiment of the present invention further provides a processing device for a user equipment UE and a network state mismatch, which is applied to an access and mobility management function (AMF), including: a first determining module, configured to receive Determining that the UE is in a connected state on the network side when the non-access stratum message sent by the UE or the message of the N2 interface sent by the radio access network (RAN) node is determined; the second determining module is configured to determine that the UE is serving The RAN node changes, notifying the original RAN node to release the context of the UE and the existing user plane connection.
  • AMF access and mobility management function
  • the apparatus further includes: a receiving module, configured to: receive an initial non-access stratum message sent by the UE in an idle state, where the idle state is that the UE is inactive from radio resource control (RRC) After the state enters the RRC idle state, the connection entered by the non-access stratum manages the idle state, and then the initial non-access stratum message is sent.
  • RRC radio resource control
  • the receiving module is configured to: receive a registration update request message sent by the UE in the idle state; or, when the UE sends uplink data in the idle state, receive the UE Request message.
  • the first determining module is configured to: determine, according to the saved context of the UE, that the UE is in a connected state on a network side.
  • the second determining module is configured to:
  • the second determining module is further configured to: notify the original RAN node to release the context of the UE, so that the original RAN node stops paging at the RAN level.
  • the second determining module is configured to: determine a RAN node that forwards the non-access stratum message or a RAN node that sends an N2 interface message, and determine a service when the saved RAN node in the UE context is different.
  • the RAN node of the UE changes.
  • the second determining module is further configured to: request a session management function (SMF) to deactivate a protocol data unit session (PDU session), where the request is used to request the SMF to deactivate a user plane connection, so that The SMF deletes the user plane configuration of the PDU session.
  • SMF session management function
  • the apparatus further includes a third determining module, configured to: determine the UE Entering the disallowed area or the forbidden area, and notifying the request session management function (SMF) of the protocol data unit session (PDU session) to which the user plane connection belongs, the UE is only reachable by the high priority service.
  • SMF request session management function
  • the apparatus further includes: a requesting module, configured to request a session management function SMF according to a protocol data unit session (PDU session) specified in the service request message The PDU session is activated, and then the PDU session is activated.
  • a requesting module configured to request a session management function SMF according to a protocol data unit session (PDU session) specified in the service request message
  • PDU session protocol data unit session
  • an embodiment of the present invention provides a computer apparatus including a memory, a processor, and a computer program stored on the memory and operable on the processor, when the processor executes the computer program A step of implementing a processing method in which the UE and the network state do not match as described above.
  • an embodiment of the present invention provides a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps of the processing method of UE and network status mismatch as described above.
  • the radio access network (RAN) node when receiving the non-access stratum message sent by the UE or the message of the N2 interface sent by the radio access network (RAN) node, determining that the UE is in the connected state on the network side Determining that the RAN node serving the UE changes, notifying the original RAN node to release the context of the UE and the existing user plane connection. That is, when it is determined that the network status of the RAN node of the UE and the currently serving UE does not match, the original RAN node is notified to release the context of the UE and the existing user plane connection, thereby solving the waste of air interface resources and packet loss. Technical issues reduce paging overhead and packet loss.
  • FIG. 1 is a flowchart of a method for processing a UE and a network state mismatch according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a step of determining, in step S102, that a RAN node of a serving UE is changed in a processing method of UE and network state mismatch according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a procedure for notifying an original RAN node to release a context and a user plane connection of the UE in step S102 in a method for processing a UE and a network state mismatch according to the first embodiment of the present invention
  • FIG. 4 is a schematic diagram of a process of receiving an initial non-access stratum message in a first case in a method for processing a UE and a network state mismatch according to the first embodiment of the present invention
  • FIG. 5 is a schematic diagram of a process of receiving an initial non-access stratum message in a second case in a method for processing a UE and a network state mismatch according to the first embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a processing apparatus for UE and network status mismatch according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic diagram of a processing apparatus for UE and network status mismatch according to an embodiment of the present invention.
  • the embodiments of the present invention provide a method and a device for processing a mismatch between a UE and a network, which are used to solve the technical problem of waste of air interface resources and packet loss in the prior art, and reduce paging overhead and packet loss.
  • the technical solution in the embodiment of the present invention is to solve the above technical problem, and the general idea is as follows:
  • RAN radio access network
  • the radio access network (RAN) node when receiving the non-access stratum message sent by the UE or the message of the N2 interface sent by the radio access network (RAN) node, determining that the UE is in the connected state on the network side Determining that the RAN node serving the UE changes, notifying the original RAN node to release the context of the UE and the existing user plane connection. That is, when it is determined that the network status of the RAN node of the UE and the currently serving UE does not match, the original RAN node is notified to release the context of the UE and the existing user plane connection, thereby solving the waste of air interface resources and packet loss. Technical issues reduce paging overhead and packet loss.
  • a first embodiment of the present invention provides a processing method for a user equipment (UE) and a network state mismatch, which is applied to an access and mobility management function (AMF), including:
  • S101 When receiving the non-access stratum message sent by the UE or the message of the N2 interface sent by the radio access network (RAN) node, determining that the UE is in a connected state on the network side;
  • RAN radio access network
  • S102 Determine that the RAN node serving the UE changes, and notify the original RAN node to release the context of the UE and the existing user plane connection.
  • step S101 to step S102 is as follows:
  • the AMF receives an access layer message sent by the UE, which may be a registration update message, a Service Request message, or the like.
  • the step of: receiving the non-access stratum message sent by the UE specifically: receiving an initial non-access stratum message sent by the UE in an idle state, where the idle state is the UE
  • the connection management idle state entered by the non-access stratum after entering the RRC idle state from the radio resource control (RRC) inactive state.
  • RRC radio resource control
  • the UE may not remain in the RRC inactive state, and the UE manages the connection state from the current connection. Switch to connection management idle state.
  • the initial non-access stratum message may specifically be the registration update message, the Service Request message, and the like. Therefore, in a specific implementation process, the step of receiving the initial non-access stratum message sent by the UE in an idle state may be in the following two situations, but is not limited to the following two cases.
  • the first case is: receiving a registration update request message sent by the UE in the idle state; for example, when the UE leaves the paging area of the current RAN node and enters a RAN node coverage area that does not support the RRC inactive state.
  • the UE directly sends a registration update request message to the AMF.
  • the second case is: when the UE sends uplink data in the idle state, receiving a request message of the UE. For example, when the UE leaves the paging area of the current RAN node and enters the RAN node coverage area that does not support RRC inactive, when the UE has uplink data to be transmitted, the UE needs to further determine whether the current mobile moves out of the current RAN. The registration area assigned by the node. Further, if not, the service request process is initiated. That is, when the UE sends uplink data in the idle state, receiving a request message of the UE, the request message may be a service request message.
  • the UE when the UE enters an RRC idle state, but the UE does not move out of the current registration area, the UE only initiates a RAN level location update process, and does not initiate any non-access stratum process.
  • the RAN node that receives the RAN level location update request of the UE determines that the RRC inactive state cannot be activated for the UE, it initiates an N2 release procedure to the AMF of the core network.
  • the original RAN node receives the downlink signaling or data of the UE in this state, because the core network considers that the UE is always in the connected state, that is, when determining that the UE is in the connected state on the network side, the original RAN node receives the downlink signaling or data of the UE in this state.
  • the original RAN node needs to page the UE.
  • the original RAN node Upon determining that the RAN node serving the UE changes, the original RAN node is notified to release the context of the UE and the existing user plane connection, wherein the context of the UE includes the mobility context and the context of the session connection. In this way, the original RAN node will no longer page the UE, thereby reducing paging overhead.
  • the step of: determining that the RAN node serving the UE is changed including: determining that the RAN node serving the UE changes, including: determining a RAN node that forwards the non-access stratum message or sending the N2
  • the RAN node of the interface message determines that the RAN node serving the UE changes when it is different from the saved RAN node in the UE context.
  • step S102 it is determined that the RAN node serving the UE changes, including:
  • S201 Determine, according to the saved context of the UE, that the RAN node that is saved in the context and serves the UE is an original RAN node;
  • S202 Determine, according to the original RAN node and the RAN node that forwards the initial non-access stratum message that currently serves the UE, that the RAN node serving the UE changes.
  • step S201 to step S202 that is, determining that the RAN node that forwards the non-access stratum message is different from the RAN node in the saved UE context, determining that the RAN node serving the UE occurs change.
  • the step of: determining a service when receiving the message of the N2 interface sent by the RAN node, determining that the UE is in a connected state on the network side, and determining that the RAN node serving the UE changes, the step of: determining a service
  • the specific implementation process of changing the RAN node of the UE is to determine that the RAN node that sends the N2 interface message is different from the RAN node in the saved UE context, and determines that the RAN node serving the UE changes.
  • the AMF after the AMF receives the release message of the N2 interface that is currently sent by the RAN node of the UE, it is determined that the current UE is in the connected state on the network side, and is recorded in the UE context saved by itself.
  • the RAN node serving the UE is different from the RAN node currently serving the UE, and the AMF requests the original RAN node, that is, the RAN node of the serving UE described in the UE context, releasing the context of the UE and the possible user plane. connection.
  • the step of determining that the UE is in a connected state on the network side the specific implementation process may be: determining that the UE is in a connected state on the network side according to the saved context of the UE.
  • step S102 the original RAN node is notified to release the context and user plane connection of the UE, including:
  • S301 notify the original RAN node to release the context of the UE.
  • step S301 the original RAN node is notified to release the context of the UE, so that the original RAN node stops paging at the RAN level, that is, the AMF will control the original RAN node to stop paging the UE.
  • step S102 determining that the RAN node serving the UE changes, notifying the original RAN node to release the context of the UE and the user plane connection, and further comprising:
  • the session management function SMF When it is determined that the RAN node serving the UE changes, notifying the original RAN node to release the context of the UE and the user plane connection, requesting the session management function SMF to deactivate the protocol data unit session (PDU session), the request is for requesting The SMF deactivates the user plane connection to cause the SMF to delete the user plane configuration of the PDU session.
  • PDU session protocol data unit session
  • the specific implementation process of the processing method in which the UE and the network state do not match As shown in Figure 4. Specifically, when the UE leaves the paging response area of the current RAN node and enters the RAN node coverage area that does not support RRC inactive, the UE sends a registration update request message to the AMF. After receiving the registration update request message, the AMF searches for the context of the UE.
  • the RAN anchor node serving the UE is changed from the old RAN anchor node to the new RAN node, then the RAN anchor node that previously served the UE in the context is The old RAN anchor node sends a Release N2 Connection Request message requesting to release the N2 connection between the RAN anchor node and the AMF.
  • the AMF sends a request to deactivate the PDU session to the SMF at the same time or after receiving the N2 connection release response message to the RAN anchor node that served the UE, requesting the SMF to deactivate the user plane connection.
  • the RAN anchor node that previously served the UE receives the release N2 connection request message, if the RAN level paging is currently being performed, the RAN level paging is stopped, and the RAN anchor node that previously served the UE is released.
  • the context of the UE After receiving the request to deactivate the PDU session, the SMF will configure the User Plane Function (UPF) to delete the user plane tunnel.
  • UPF User Plane Function
  • the UPF buffers the downlink data and triggers a Downlink data Notification process.
  • the AMF After receiving the response of the RAN anchor node and the SMF that previously served the UE, the AMF returns a registration update Accept message to the UE.
  • the AMF When the AMF receives the non-access stratum message sent by the UE or the message of the N2 interface sent by the RAN node, if the AMF determines that the UE enters a disallowed area or a prohibited area at this time, the AMF Notifying the SMF serving the PDU session for the PDU session in which the user plane is connected, the UE only receives the high priority service.
  • the non-allowed area and the forbidden area, and the governed prioritized services are terms defined in the 3GPP TS 23.501 protocol, the high priority The service can be an emergency call service or the like.
  • the AMF may further determine that there is a PDU session in which the user plane is connected according to the PDU session that is previously deleted by the RAN anchor node of the UE.
  • the RAN anchor node that previously served the UE may indicate that the deleted PDU session is indicated in the N2 connection release response message, thereby ensuring that the RAN anchor node serving the UE before the AMF notification releases the user plane connection existing by the UE .
  • the UE when in the second case mentioned above, that is, when the UE sends uplink data in the idle state, and the AMF receives the request message of the UE,
  • the specific implementation process of the processing method in which the UE and the network state do not match is shown in FIG. 5. Specifically, when the UE leaves the paging response area of the current RAN node and enters the RAN node coverage area that does not support RRC inactive, if there is uplink data to be sent, the UE determines whether the current RAN node allocation is removed. Registration area. If not, the service request process is initiated. Otherwise, the registration update process is initiated, and the active flag is carried.
  • the AMF After the AMF receives the request message when the UE sends the uplink data in the idle state, searching for the context of the UE, if it is determined that the current UE is already in the connected state and the RAN node of the serving UE changes,
  • the RAN anchor node i.e., the old RAN anchor node
  • the RAN anchor node that previously served the UE transmits a Release N2 Connection Request message requesting release of the N2 connection between the RAN anchor node and the AMF.
  • the RAN anchor node that previously served the UE receives the N2 connection release request message, if the RAN level paging is currently being performed, the RAN level paging is stopped, and the RAN anchor node releases the context of the UE.
  • the SMF finds that the session connection user plane of the current PDU session is in an active state, and first requests the UPF to deactivate the user plane. If the UPF is performing data transmission at this time, the UPF is performing data transmission, and the UPF buffers downlink data, and triggers a Downlink data Notification process. The SMF receives the Downlink data Notifiation of the UPF and suspends the process.
  • the method further includes: requesting a session management function (SMF) according to the protocol data unit session PDU session specified in the service request message. That is, SMF) deactivates the PDU session and then activates the PDU session.
  • SMF session management function
  • the SMF when the UE and the network status do not match, the SMF is requested to deactivate the PDU session according to the PDU session specified in the service request message. Since the RAN node currently serving the UE changes, the AMF requests the new RAN node to establish an air interface connection for the UE, and forwards the downlink tunnel information allocated by the RAN node to the PDU session to the SMF. After receiving the downlink tunnel information, the SMF performs user plane configuration and reactivates the new user plane tunnel. In addition, the new RAN node configures the RRC connection for the UE.
  • the second embodiment of the present invention further provides a processing apparatus for user equipment UE and network state mismatch, which is applied to an access and mobility management function (AMF).
  • AMF access and mobility management function
  • the first determining module 10 is configured to: when receiving the non-access stratum message sent by the UE or the message of the N2 interface sent by the radio access network (RAN) node, determining that the UE is in a connected state on the network side;
  • RAN radio access network
  • the second determining module 20 is configured to determine that the RAN node serving the UE changes, and notify the original RAN node to release the context of the UE and the existing user plane connection.
  • the apparatus further includes: a receiving module, configured to: receive an initial non-access stratum message sent by the UE in an idle state, where the idle state is the radio resource control (RRC) of the UE
  • RRC radio resource control
  • the receiving module is configured to: receive a registration update request message sent by the UE in the idle state; or, when the UE sends uplink data in the idle state, receive the The request message of the UE.
  • the first determining module 10 is configured to: determine that the UE is in a connected state on the network side according to the saved context of the UE.
  • the second determining module 20 is configured to: determine, according to the saved context of the UE, that the RAN node serving the UE saved in the context is an original RAN node; according to the original RAN The node and the RAN node that forwards the initial non-access stratum message currently serving the UE determine that the RAN node serving the UE changes.
  • the second determining module 20 is configured to: notify the original RAN node to release the context of the UE; and delete the user plane connection with the core network.
  • the second determining module 20 is further configured to: notify the original RAN node to release the context of the UE, so that the original RAN node stops paging at the RAN level.
  • the second determining module 20 is configured to: determine that the RAN node that forwards the non-access stratum message or the RAN node that sends the N2 interface message is different from the saved RAN node in the UE context, It is determined that the RAN node serving the UE has changed.
  • the second determining module 20 is further configured to: request a session management function (SMF) to deactivate a protocol data unit session (PDU session), where the request is used to request the SMF to deactivate a user plane connection,
  • SMF session management function
  • the SMF is configured to delete the user plane configuration of the PDU session.
  • the apparatus after the receiving the non-access stratum message sent by the UE or the message of the N2 interface sent by the radio access network RAN node, the apparatus further includes a third determining module, configured to: determine The UE enters a disallowed area or a forbidden area, and notifies a request session management function SMF corresponding to a protocol data unit session (PDU session) that serves the user plane connection, and the UE only receives the high priority service.
  • PDU session protocol data unit session
  • the device further includes: a requesting module, configured to request session management according to a protocol data unit session (PDU session) specified in the service request message.
  • the function deactivates the PDU session and then activates the PDU session.
  • the present invention further provides a processing device for a user equipment UE and a network state mismatch, including a processor 30, a memory 40, and an external communication interface 50; wherein, the external communication interface 50, for receiving and transmitting data under the control of the processor 30;
  • the processor 30 is configured to read a program in the memory 40 and perform the following process:
  • the external communication interface 50 When the external communication interface 50 receives the non-access stratum message sent by the UE or the message of the N2 interface sent by the radio access network RAN node, it is determined that the UE is in a connected state on the network side;
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 30 and various circuits of memory represented by memory 40.
  • 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.
  • the external communication interface 50 can be a plurality of elements that provide means for communicating with various other devices on a transmission medium.
  • the processor 30 is responsible for managing the bus architecture and general processing, and the memory 40 can store data used by the processor 30 in performing operations.
  • a further aspect of the present invention provides a computer device.
  • the computer device may be a network side device, or may be a terminal, including a memory, a processor, and stored in the memory.
  • Yet another aspect of an embodiment of the present invention provides a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the methods described in the various aspects described above.
  • the RAN node serving the UE when receiving the non-access stratum message sent by the UE or the message of the N2 interface sent by the radio access network RAN node, determining that the UE is in a connected state on the network side; determining The RAN node serving the UE changes, notifying the original RAN node to release the context of the UE and the existing user plane connection. That is, when it is determined that the network status of the RAN node of the UE and the currently serving UE does not match, the original RAN node is notified to release the context of the UE and the existing user plane connection, thereby solving the waste of air interface resources and packet loss. Technical issues reduce paging overhead and packet loss.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif de traitement de non-correspondance entre une unité d'UE et un état de réseau pouvant s'appliquer à une fonction de gestion d'accès et de mobilité (AMF). Le procédé consiste : lors de la réception d'un message de strate de non-accès transmis par une unité d'UE ou d'un message d'interface N2 transmis par un nœud de réseau d'accès radio (RAN), à déterminer que l'unité d'UE est dans un état connecté au niveau d'un côté réseau ; et s'il est déterminé qu'un changement se produit dans un nœud de RAN desservant l'unité d'UE, à notifier audit nœud de RAN qu'un contexte de l'unité d'UE et une connexion de plan utilisateur existant doivent être libérés. L'invention résout les problèmes techniques, selon l'état de la technique, d'utilisation inefficace d'une ressource d'interface air et de perte de paquets, réduisant ainsi les surcharges de radiomessagerie et la perte de paquets.
PCT/CN2018/098683 2017-08-14 2018-08-03 Procédé et dispositif de traitement de non-correspondance entre un équipement utilisateur et un état de réseau WO2019033945A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020207007501A KR20200038295A (ko) 2017-08-14 2018-08-03 Ue와 네트워크 상태 간의 비 매칭을 처리하기 위한 방법 및 장치
EP18846130.5A EP3672327B1 (fr) 2017-08-14 2018-08-03 Procédé et dispositif de traitement de non-correspondance entre un équipement utilisateur et un état de réseau
US16/639,124 US11212864B2 (en) 2017-08-14 2018-08-03 Method and device for processing non-matching between UE and network state
JP2020508609A JP2020530731A (ja) 2017-08-14 2018-08-03 Ｕｅとネットワーク状態の間の非マッチングを処理するための方法および装置

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CN201710693914.4 2017-08-14
CN201710693914 2017-08-14
CN201710855403.8 2017-09-20
CN201710855403.8A CN109548109B (zh) 2017-08-14 2017-09-20 一种ue和网络状态不匹配的处理方法及装置、存储介质

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101094096A (zh) * 2006-06-20 2007-12-26 华为技术有限公司 一种演进网络架构下的移动性管理方法
CN102595534A (zh) * 2011-01-10 2012-07-18 华为技术有限公司 用户设备上下文相关资源的释放方法和设备
US20160234877A1 (en) * 2015-02-09 2016-08-11 Sangeetha L. Bangolae Evolved node-b, user equipment, and methods for transition between idle and connected modes
CN106658758A (zh) * 2017-02-10 2017-05-10 北京小米移动软件有限公司 状态转换方法、状态保持方法、装置及用户设备
US20170230869A1 (en) * 2016-02-10 2017-08-10 Qualcomm Incorporated Beam selection for uplink and downlink based mobility

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101094096A (zh) * 2006-06-20 2007-12-26 华为技术有限公司 一种演进网络架构下的移动性管理方法
CN102595534A (zh) * 2011-01-10 2012-07-18 华为技术有限公司 用户设备上下文相关资源的释放方法和设备
US20160234877A1 (en) * 2015-02-09 2016-08-11 Sangeetha L. Bangolae Evolved node-b, user equipment, and methods for transition between idle and connected modes
US20170230869A1 (en) * 2016-02-10 2017-08-10 Qualcomm Incorporated Beam selection for uplink and downlink based mobility
CN106658758A (zh) * 2017-02-10 2017-05-10 北京小米移动软件有限公司 状态转换方法、状态保持方法、装置及用户设备

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