WO2015010325A1 - Procédé et appareil de transmission de données - Google Patents

Procédé et appareil de transmission de données Download PDF

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Publication number
WO2015010325A1
WO2015010325A1 PCT/CN2013/080194 CN2013080194W WO2015010325A1 WO 2015010325 A1 WO2015010325 A1 WO 2015010325A1 CN 2013080194 W CN2013080194 W CN 2013080194W WO 2015010325 A1 WO2015010325 A1 WO 2015010325A1
Authority
WO
WIPO (PCT)
Prior art keywords
user equipment
data transmission
network element
indication
mobility management
Prior art date
Application number
PCT/CN2013/080194
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English (en)
Chinese (zh)
Inventor
张万强
于益俊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/080194 priority Critical patent/WO2015010325A1/fr
Priority to CN201380073118.0A priority patent/CN104995875B/zh
Publication of WO2015010325A1 publication Critical patent/WO2015010325A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus. Background technique
  • the network side In the Evolved Packet System (EPS), after the user equipment (User Equipment, UE) completes the network attach procedure, the network side establishes a default bearer for the user equipment, and the default bearer can be used for data transmission. And can be deleted when the UE logs out from the network side.
  • EPS Evolved Packet System
  • IP Internet Protocol
  • the invention provides a data transmission method and device, which can save network resources.
  • the present invention uses the following technical solutions:
  • a data transmission method including:
  • the mobility management network element acquires whether to establish a default bearer indication for the user equipment. If the mobility management network element determines that the default bearer is not established according to whether the user equipment establishes a default bearer indication, the sending to the radio access network element is not established. Default bearer indication;
  • the mobility management network element performs data transmission with the user equipment through NAS signaling when the default bearer is not established.
  • the acquiring, by the mobility management network element, a default bearer indication for the user equipment includes:
  • the mobility management network element receives the user equipment by using an attach request Whether the information is sent by the user equipment to establish a default bearer indication and the subscription information of the user equipment that is sent by the home subscriber subscription server by updating the location confirmation message, where the subscription information includes whether to establish a default bearer indication for the user equipment;
  • the mobility management network element receives a context response message sent by the original mobility management network element, where the context response message includes context information of the user equipment, and the context information of the user equipment is saved without establishing a default bearer. Instructions.
  • the determining whether to establish a default bearer indication for the user equipment is represented by an attachment type in the attach request message;
  • the mobility management network element sends a default bearer indication to the radio access network element, including:
  • the mobility management network element sends a default bearer indication to the radio access network element by using an attach accept message.
  • the method further includes:
  • the mobility management network element saves, in the context information of the user equipment, that the default bearer indication is not established.
  • the method further includes:
  • the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment;
  • a context response message sent by the mobility management network element to the new mobility management network element where the context response message includes context information of the user equipment, and the context information of the user equipment is saved without establishing a default bearer. Instructing, to cause the new mobility management network element to determine whether to establish a default bearer for the user equipment.
  • the mobility management network element further includes: before the data transmission with the user equipment by using the NAS signaling, when the default bearer is not established.
  • the mobility management network element queries the context information of the user equipment to include not establishing a default bearer indication
  • the mobility management network element sends an initial context setup request to the radio access network element to notify the radio access network element to be the same if the context information of the user equipment includes not establishing a default bearer indication.
  • the user equipment does not establish a data radio bearer and sends an RRC connection reconfiguration message to the user equipment, where the initial context setup request includes security context information and the default bearer indication is not established, and the RRC connection reconfiguration message includes no Establish a data radio bearer indication.
  • the method before the mobility management network element receives the service request sent by the user equipment, the method further includes:
  • the mobility management network element sends a page to the user equipment if the context information of the user equipment includes not setting a default bearer indication, or if the downlink data includes an indication that the data transmission is not required by the user plane bearer.
  • the paging message includes data transmission without using a user plane bearer.
  • performing data transmission with the user equipment by using NAS signaling includes:
  • the mobility management network element sends a page to the user equipment if the context information of the user equipment includes not setting a default bearer indication, or if the downlink data includes an indication that the data transmission is not required by the user plane bearer. a message, the paging message includes an indication that the data transmission is not required by the user plane bearer;
  • the mobility management network element receives a signaling plane data transmission request sent by the user equipment, where the signaling plane data transmission request is sent by the user equipment when it is determined that data transmission is not required by using a user plane bearer;
  • the first signaling plane data transmission accept message includes: security context information and downlink data
  • the second signaling plane data transmission accept message includes: the downlink data
  • performing data transmission with the user equipment by using NAS signaling includes:
  • the mobility management network element receives a signaling plane data transmission request sent by the user equipment, where the signaling plane data transmission request includes: uplink data, where the signaling plane data transmission request is determined by the user equipment not to pass The user plane carries the data transmission when it is transmitted;
  • the mobility management network element extracts the uplink data from the signaling plane data transmission request
  • the method further includes:
  • the mobility management network element determines whether to release the signaling connection according to whether to release the signaling connection indication.
  • the method further includes:
  • the mobility management network element receives the delete bearer request sent by the packet data gateway; the mobility management network element determines the context information or the user equipment of the user equipment when the bearer to be deleted is the last bearer of all PDN connections Whether the subscription data includes not establishing a default bearer indication;
  • a data transmission method including:
  • the user equipment sends a default bearer indication to the mobility management network element to notify the mobility management network element to determine whether to establish a default bearer indication for the user equipment, and determine to not establish a default bearer.
  • the incoming NE sends no default bearer indication.
  • the user equipment performs data transmission with the mobility management network element through NAS signaling when the default bearer is not established.
  • the user equipment sends, to the mobility management network element, whether to establish a default bearer indication for the user equipment, where the user equipment sends the mobility request message to the mobile device. Whether the management NE sends The user equipment establishes a default bearer indication.
  • the determining whether to establish a default bearer indication for the user equipment is indicated by an attachment type in the attach request message
  • the method further includes:
  • the user equipment sends a tracking area/routing area update request message to the new mobility management network element, where the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment, so that the new mobility
  • the management network element determines whether a default bearer is established for the user equipment.
  • the user equipment before the data transmission is performed by using the NAS signaling and the mobility management network element, when the default bearer is not established.
  • the user equipment also includes:
  • the user equipment When the user equipment determines that data transmission is not required by the user plane bearer, the user equipment sends a service request to the mobility management network element to notify the mobility management network element that the user equipment does not establish data wireless. Hosted.
  • the user equipment when the user equipment determines that data transmission is not required by using a user plane bearer, the user equipment sends the user equipment to the mobility management network.
  • the method further includes: the user equipment receiving a paging message sent by the mobility management network element, where the paging message includes, by using a user plane bearer, a data transmission indication, and is managed by the mobility.
  • the determining, by the network element, that the user equipment does not need to establish a default bearer indication, or the downlink data includes not performing data transmission through the user plane bearer. Sent when the indication is lost.
  • the user equipment performs data transmission with the mobility management network element by using NAS signaling when the default bearer is not established, including:
  • the context information includes: when the default bearer indication is not established, or when the downlink data includes the data transmission indication without using the user plane bearer;
  • the user equipment When the user equipment determines that data transmission is not required by the user plane bearer, the user equipment sends a signaling plane data transmission request to the radio access network element to request the radio access network element to forward the signaling a surface data transmission request to the mobility management network element;
  • the second access plane data transmission accept message receives the mobility by the radio access network element
  • the first signaling plane data transmission accept message includes: security context information and the downlink data
  • the second signaling plane data transmission accept message includes: the downlink data.
  • the user equipment performs data transmission with the mobility management network element by using NAS signaling when the default bearer is not established, including:
  • the user equipment When the user equipment determines that data transmission is not required by the user plane bearer, the user equipment sends a signaling plane data transmission request to the radio access network element to request the radio access network element to forward the signaling
  • the data transmission request is sent to the mobility management network element, and the signaling plane data transmission request includes: uplink data;
  • the second access plane data transmission accept message receives the mobility by the radio access network element
  • the first signaling plane data transmission received by the management network element is accepted.
  • the first signaling plane data transmission accept message includes: security context information.
  • the method further includes:
  • a data transmission apparatus including:
  • the obtaining module is configured to: obtain a default bearer indication for the user equipment, and send, by the sending module, if the default bearer is not established according to whether the default bearer indication is established for the user equipment, and the default bearer is not sent to the radio access network element.
  • a transmitting module configured to perform data transmission with the user equipment by using NAS signaling when the default bearer is not established.
  • the acquiring module is specifically configured to receive, by the user equipment, whether a default bearer indication is established for the user equipment by using an attach request message;
  • the acquiring module is specifically configured to: receive, by the user equipment, a default bearer indication that is sent by the user equipment by using an attach request message, and sign the user equipment that is sent by the home subscriber subscription server by updating the location confirmation message.
  • Information, the subscription information includes whether to establish a default bearer indication for the user equipment;
  • the acquiring module is configured to receive a context response message sent by the original mobility management network element, where the context response message includes context information of the user equipment, and the context information of the user equipment is saved without establishing a default. Bearer indication.
  • whether the default bearer indication is established for the user equipment is indicated by an attachment type in the attach request message
  • the sending module is specifically configured to send, by using an attach accept message, a default bearer indication to the radio access network element.
  • the method further includes:
  • a storage module configured to save the non-establishment default bearer indication in context information of the user equipment.
  • the method further includes:
  • a receiving module configured to receive a context request message sent by the new mobility management network element, where the context request message is sent by the new mobility management network element after receiving the tracking area/routing area update request sent by the user equipment,
  • the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment;
  • the sending module is further configured to send a context response message to the new mobility management network element, where the context response message includes context information of the user equipment, and the context information of the user equipment is saved without establishing a default. Carrying an indication to cause the new mobility management network element to determine whether to establish a default bearer for the user equipment.
  • a receiving module configured to receive a service request sent by the user equipment, where the service request is sent by the user equipment when the data transmission is not required to be performed by the user plane bearer, and the query module is configured to query the context information of the user equipment. Whether to include not establishing a default bearer indication;
  • the sending module is further configured to send the initial to the radio access network element if the querying module inquires that the context information of the user equipment includes not establishing a default bearer indication. And initiating a context establishment request, to notify the radio access network element that the user equipment does not establish a data radio bearer and send an RRC connection reconfiguration message to the user equipment, where the initial context setup request includes security context information and The default bearer indication is not established, and the RRC connection reconfiguration message includes not establishing a data radio bearer indication.
  • the sending module is further configured to: when the context information of the user equipment includes not establishing a default bearer indication, or Sending a paging message to the user equipment if the downlink data includes an indication that the data transmission is not required by the user plane bearer;
  • the paging message includes a data transmission indication that does not need to be carried by a user plane bearer.
  • the transmitting module is specifically configured to: when the context information of the user equipment includes not establishing a default bearer indication, or And sending, to the user equipment, a paging message, where the downlink data includes an indication that the data transmission is not required to be performed by the user plane bearer, where the paging message includes:
  • the transmission module is further configured to receive a signaling plane data transmission request sent by the user equipment, where the signaling plane data transmission request is sent by the user equipment when it is determined that data transmission is not required by using a user plane bearer;
  • the transmitting module is further configured to send a first signaling plane data transmission accept message to the radio access network element, to trigger the radio access network element to send a second signaling plane data transmission to the user equipment.
  • the transmitting module is configured to receive a signaling plane data transmission request sent by the user equipment, where the signaling plane data transmission request includes: Data, the signaling plane data transmission request is sent by the user equipment when it is determined that data transmission is not required by the user plane bearer;
  • the device also includes:
  • An extracting module configured to extract the uplink number from the signaling plane data transmission request According to;
  • the transmitting module is further configured to send a first signaling plane data transmission accept message to the radio access network element, to trigger the radio access network element to send a second signaling plane data transmission to the user equipment.
  • the method further includes:
  • a receiving module configured to receive a signaling plane data transmission completion message sent by the user equipment, where the signaling plane data transmission completion message includes whether to release a signaling connection indication
  • a determining module configured to: according to whether the signaling connection is released Indicates whether to determine whether to release the signaling connection.
  • the method further includes:
  • a receiving module configured to receive a delete bearer request sent by the packet data gateway, and a determining module, configured to determine context information of the user equipment or subscription data of the user equipment when the bearer to be deleted is the last bearer of all PDN connections Whether to include not establishing a default bearer indication;
  • the sending module is further configured to: if the default bearer indication is not established, send a deactivation bearer request to the radio access network element, to request the radio access network element to send an RRC link reconfiguration message to the user equipment.
  • the deactivation bearer request includes a deactivate EPS bearer context request and a no detach indication, where the RRC link reconfiguration message includes a deactivate EPS bearer context request and a no detach indication.
  • a data transmission apparatus including:
  • a sending module configured to send, to the mobility management network element, whether to establish a default bearer indication for the user equipment, to notify the mobility management network element to determine, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established, Sending a default bearer indication to the radio access network element;
  • a transmission module configured to perform, by NAS signaling, when the default bearer is not established
  • the mobility management network element performs data transmission.
  • the sending module is specifically configured to send, by using an attach request message, a mobility management network element, whether to establish a default bearer indication for the user equipment.
  • the determining whether to establish a default bearer indication for the user equipment is represented by an attachment type in the attach request message;
  • the sending module is further configured to send a tracking area/routing area update request message to the new mobility management network element, where
  • the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment, so that the new mobility management network element determines whether to establish a default bearer for the user equipment.
  • the sending module is further configured to: when the user equipment determines that data transmission is not required by using a user plane bearer, The mobility management network element sends a service request to notify the mobility management network element that the user equipment does not establish a data radio bearer.
  • the method further includes:
  • a receiving module configured to receive a paging message sent by the mobility management network element, where the paging message includes, by using a user plane bearer, a data transmission indication, and the mobility management network element determines the user equipment
  • the context information includes when the default bearer indication is not established, or when the downlink data includes an indication that the data transmission is not required by the user plane bearer.
  • the transmitting module is configured to receive a paging message that is sent by the mobility management network element, where the paging message includes And performing the data transmission indication, and the mobility management network element includes, when the context information of the user equipment is determined, that the default bearer indication is not established, or the downlink data includes sending, when the data transmission indication is not required by using the user plane bearer;
  • the transmitting module is further configured to: when the user equipment determines that data transmission is not required by the user plane bearer, send a signaling plane data transmission request to the radio access network element to request the radio access network element Forwarding the signaling plane data transmission request to the mobility management network element;
  • the transmitting module is further configured to receive, by the radio access network element, a second signaling plane data transmission accept message, where the second signaling plane data transmission accept message is received by the radio access network element After the first signaling plane data transmission accept message sent by the mobility management network element, the first signaling plane data transmission accept message includes: security context information and the downlink data, the second signaling The face data transmission accept message includes: the downlink data.
  • the transmitting module is specifically configured to: when determining that data transmission by using a user plane bearer is not required, sending signaling plane data to the radio access network element Transmitting a request to request the radio access network element to forward the signaling plane data transmission request to the mobility management network element, where the signaling plane data transmission request includes: uplink data;
  • the transmitting module is further configured to receive, by the radio access network element, a second signaling plane data transmission accept message, where the second signaling plane data transmission accept message is received by the radio access network element After the first signaling plane data transmission accept message sent by the mobility management network element is sent, the first signaling plane data transmission accept message includes: security context information.
  • the sending module is further configured to send the signaling plane data transmission to the mobility management network element.
  • the signaling plane data transmission completion message includes Whether to release the signaling connection indication.
  • the receiver is configured to: determine whether to establish a default bearer for the user equipment, and send, by the transmitter, to the radio access network element, if the default bearer is not established according to whether the default bearer indication is established for the user equipment, The receiver is further configured to receive data sent by the user equipment by using NAS signaling when the default bearer is not established;
  • the transmitter is further configured to send data to the user equipment by using NAS signaling when a default bearer is not established.
  • the receiver is configured to receive, by the user equipment, whether a default bearer indication is established for the user equipment by using an attach request message;
  • the subscription information includes whether to establish a default bearer indication for the user equipment;
  • the receiver is configured to receive a context response message sent by the original mobility management network element, where the context response message includes context information of the user equipment, and the context information of the user equipment is saved without establishing a default. Bearer indication.
  • whether the default bearer indication is established for the user equipment is represented by an attachment type in the attach request message
  • the transmitter is specifically configured to send, by using an attach accept message, a default bearer indication to the radio access network element.
  • the method further includes:
  • a storage configured to save, in the context information of the user equipment, the default bearer indication not established.
  • the receiver is further configured to receive a context request message sent by a new mobility management network element, where the context request message is After the new mobility management network element receives the tracking area/routing area update request sent by the user equipment, the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment;
  • the transmitter is further configured to send a context response message to the new mobility management network element, where the context response message includes context information of the user equipment, and the context information of the user equipment is saved without establishing a default. Carrying an indication to cause the new mobility management network element to determine whether to establish a default bearer for the user equipment.
  • the receiver is further configured to receive a service request sent by the user equipment, where the service request is the user equipment Determining that it is sent without data transmission through the user plane bearer;
  • the data transmission device further includes: a processor, configured to query whether the context information of the user equipment includes not establishing a default bearer indication;
  • the transmitter is further configured to: if the query module queries that the context information of the user equipment includes not establishing a default bearer indication, sending an initial context setup request to the radio access network element to notify the radio access The network element does not establish a data radio bearer for the user equipment, and sends an RRC connection reconfiguration message to the user equipment, where the initial context setup request includes security context information and the non-establishment default bearer indication, the RRC connection The reconfiguration message includes not establishing a data radio bearer indication.
  • the seventh implementation in the fifth aspect The transmitter is further configured to: when the context information of the user equipment includes not establishing a default bearer indication, or if the downlink data includes an indication that the data transmission is not required by the user plane bearer, to the user The device sends a paging message;
  • the paging message includes a data transmission indication that does not need to be carried by a user plane bearer.
  • the transmitter is specifically configured to: when the context information of the user equipment includes not establishing a default bearer indication, or And sending, to the user equipment, a paging message, where the downlink data includes an indication that the data transmission is not required to be performed by the user plane bearer, where the paging message includes:
  • the receiver is further configured to receive a signaling plane data transmission request sent by the user equipment, where the signaling plane data transmission request is sent by the user equipment when it is determined that data transmission is not required by using a user plane bearer;
  • the transmitter is further configured to send, by the radio access network element, a first signaling plane data transmission accept message, to trigger the radio access network element to send a second signaling plane data transmission to the user equipment.
  • a first signaling plane data transmission accept message includes: security context information and downlink data
  • the second signaling plane data transmission accept message includes: the downlink data.
  • the receiver is configured to receive a signaling plane data transmission request that is sent by the user equipment, where the signaling plane data transmission request includes: Data, the signaling plane data transmission request is sent by the user equipment when it is determined that data transmission is not required by the user plane bearer;
  • the device also includes:
  • a processor configured to extract the uplink data from the signaling plane data transmission request, where the transmitter is further configured to send, by the radio access network element, a first signaling plane data transmission accept message, to The triggering the radio access network element to send the second signaling plane data transmission accept message to the user equipment, where the first signaling plane data transmission accept message includes: security context information.
  • the receiver is further configured to receive a signaling plane data transmission completion message sent by the user equipment, where the signaling plane data transmission completion message includes whether to release a signaling connection indication;
  • the processor is further configured to determine whether to release the signaling connection according to whether the signaling connection indication is released.
  • the receiver is further configured to receive a delete bearer request sent by the packet data gateway.
  • the data transmission apparatus further includes: a processor, configured to determine, when the bearer to be deleted is the last bearer of all PDN connections Whether the context information of the device or the subscription data of the user equipment does not include a default bearer indication;
  • the transmitter is further configured to: if the default bearer indication is not established, send a deactivation bearer request to the radio access network element, to request the radio access network element to send an RRC link reconfiguration message to the user equipment.
  • the deactivation bearer request includes a deactivate EPS bearer context request and a no detach indication, where the RRC link reconfiguration message includes a deactivate EPS bearer context request and a no detach indication.
  • a data transmission apparatus including:
  • a transmitter configured to send, to the mobility management network element, whether to establish a default bearer indication for the user equipment, to notify the mobility management network element to determine, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established, Sending a default bearer indication to the radio access network element;
  • the transmitter is configured to send data to the mobility management network element by using NAS signaling when a default bearer is not established;
  • the receiver is configured to receive data sent by the mobility management network element by using NAS signaling when a default bearer is not established.
  • the transmitter is configured to send, by using an attach request message, a mobility management network element, whether to establish a default bearer indication for the user equipment.
  • the determining whether to establish a default bearer indication for the user equipment is represented by an attachment type in the attach request message;
  • the transmitter is further configured to send a tracking area/routing area update request message to the new mobility management network element, where
  • the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment, so that the new mobility management network element determines whether to establish a default bearer for the user equipment.
  • the transmitter is further configured to: when the user equipment determines that data transmission is not required by using a user plane bearer, The mobility management network element sends a service request to notify the mobility management network element that the user equipment does not establish a data radio bearer.
  • the receiver is further configured to receive a paging message sent by the mobility management network element, where the paging message is The data transmission indication is not required to be performed by the user plane bearer, and the mobility management network element includes, when the context information of the user equipment is determined, that the default bearer indication is not established, or the downlink data includes data that does not need to be carried by the user plane bearer. Sent when transmitting an indication.
  • the receiver is configured to receive a paging message that is sent by the mobility management network element, where the paging message includes Performing a data transmission indication, and when the mobility management network element includes determining that the default bearer indication is not included in the context information of the user equipment, or the downlink data includes the data transmission indication not required by the user plane bearer Send
  • the receiver is further configured to: when the user equipment determines that data transmission is not required by the user plane bearer, send a signaling plane data transmission request to the radio access network element to request the radio access network element. Forwarding the signaling plane data transmission request to the mobility management network element;
  • the receiver is further configured to receive, by the radio access network element, a second signaling plane data transmission accept message, where the second signaling plane data transmission accept message is received by the radio access network element
  • the first signaling plane data transmission accept message includes: security context information and the downlink data
  • the second signaling The face data transmission accept message includes: the downlink data.
  • the transmitter is configured to send signaling plane data to the radio access network element when it is determined that data transmission is not required by the user plane bearer Transmitting a request to request the radio access network element to forward the signaling plane data transmission request to the mobility management network element, where the signaling plane data transmission request includes: uplink data;
  • the receiver is further configured to receive, by the radio access network element, a second signaling plane data transmission accept message, where the second signaling plane data transmission accept message is received by the radio access network element After the first signaling plane data transmission accept message sent by the mobility management network element is sent, the first signaling plane data transmission accept message includes: security context information.
  • the transmitter is further configured to send a signaling plane data transmission to the mobility management network element.
  • the message, the signaling plane data transmission complete message includes whether to release the signaling connection indication.
  • the mobility management network element sends, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established, and sends a default bearer indication to the radio access network element to notify the The radio access network element is set for the user The default bearer is not established, and when the default bearer is not established, the mobility management network element performs data transmission with the user equipment by using NAS signaling.
  • the network side may select that the user equipment does not establish a default bearer, and on the other hand, when it is required to transmit data based on non-IP link service data or small data volume service, even if the network side does not have a location
  • the user equipment establishes a default bearer, and the mobility management network element can also perform data transmission with the user equipment by using NAS signaling.
  • the prior art does not need to use the default bearer, and the default bearer is always in the reserved state, which causes the network resource to be wasted.
  • the embodiment of the present invention saves network resources.
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a data transmission method according to an embodiment of the present invention
  • FIG. 2 is another flowchart of a data transmission method according to an embodiment of the present invention
  • FIG. 3 is a data transmission method according to an embodiment of the present invention
  • FIG. 4 is a flowchart of implementing a tracking area/routing area update process in a data transmission method according to an embodiment of the present invention
  • FIG. 5 is a flowchart of an implementation of downlink data transmission in a data transmission method according to an embodiment of the present invention
  • FIG. 6 is a flowchart of an implementation of uplink data transmission in a data transmission method according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of another implementation of downlink data transmission in a data transmission method according to an embodiment of the present disclosure
  • FIG. 8 is a flowchart of another implementation of uplink data transmission in a data transmission method according to an embodiment of the present disclosure
  • FIG. 9 is a flowchart of an implementation of maintaining a network attachment by a UE in a bearer deactivation process according to a data transmission method according to an embodiment of the present invention.
  • FIG. 10 is a structural diagram of a data transmission apparatus according to an embodiment of the present invention
  • FIG. 10a is another structural diagram of a data transmission apparatus according to an embodiment of the present invention
  • FIG. 10b is still another structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 10c is still another structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 10 is a still further structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 11 is a structural diagram of another data transmission apparatus according to an embodiment of the present invention.
  • FIG. 11 a is another structural diagram of another data transmission apparatus according to an embodiment of the present invention.
  • FIG. 12 is a structural diagram of still another data transmission apparatus according to an embodiment of the present invention.
  • FIG. 12a is still another structural diagram of still another data transmission apparatus according to an embodiment of the present invention.
  • FIG. 12b is another structural diagram of still another data transmission apparatus according to an embodiment of the present invention.
  • FIG. 13 is a structural diagram of still another data transmission apparatus according to an embodiment of the present invention. detailed description
  • an embodiment of the present invention provides a data transmission method, which is performed by a mobility management network element, and includes:
  • the mobility management network element acquires whether to establish a default bearer indication for the user equipment.
  • the mobility management network element may be a mobility management entity (Mobility)
  • MME Management Entity
  • SGSN Serving GPRS Support Node
  • the mobility management network element determines that the default bearer is not established according to whether the user equipment establishes a default bearer indication, the mobility management network element sends a default bearer indication to the radio access network element.
  • the user equipment is not notified to establish a default bearer by notifying the radio access network element.
  • the mobility management network element performs data transmission with the user equipment by using NAS signaling.
  • the method may further include:
  • the mobility management network element saves not establishing a default bearer indication in context information of the user equipment.
  • the mobility management network element may learn, according to the context information of the user equipment, whether a default bearer has been established for the user equipment, that is, when the context information of the user equipment is saved, the default is not established. When the bearer is instructed, it can be known that the default bearer is not established. At this time, the mobility management network element performs data transmission with the user equipment by using NAS signaling.
  • the mobility management network element sends, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established, and sends a default bearer indication to the radio access network element to notify the The radio access network element does not establish a default bearer for the user equipment, and when the default bearer is not established, the mobility management network The element performs data transmission with the user equipment through NAS signaling.
  • the network side may select that the user equipment does not establish a default bearer, and on the other hand, when it is required to transmit data based on non-IP link service data or small data volume service, even if the network side does not have a location
  • the user equipment establishes a default bearer, and the mobility management network element can also perform data transmission with the user equipment by using NAS signaling.
  • the prior art does not need to use the default bearer, and the default bearer is always in the reserved state, which causes the network resource to be wasted.
  • the embodiment of the present invention saves network resources.
  • an embodiment of the present invention provides a data transmission method, which is performed by a user equipment, and includes:
  • the user equipment sends a mobility bearer to the mobility management network element to establish a default bearer indication for the user equipment.
  • the mobility management network element After the mobility management network element receives the default bearer indication for the user equipment, if it determines that the default bearer is not established according to whether the user equipment establishes a default bearer indication, the radio access network element is not established. Send does not establish a default bearer indication.
  • the user equipment When the default bearer is not established, the user equipment performs data transmission with the mobility management network element by using NAS signaling. In the embodiment of the present invention, the user equipment sends a default bearer indication to the mobility management network element, so that the mobility management network element determines whether to establish a default bearer indication for the user equipment.
  • the default bearer When the default bearer is established, the default bearer indication is not sent to the radio access network element, and when the default bearer is not established, data transmission is performed by using the NAS signaling with the mobility management network element.
  • the network side may select that the user equipment does not establish a default bearer, and on the other hand, when the user equipment needs to transmit data based on non-IP link service data or small data volume service, even if the network side does not Establishing a default bearer for the user equipment, where the user equipment also uses NAS signaling and the mobility management network element Data transfer.
  • the embodiment of the present invention saves network resources, which avoids the problem that the default bearer is used in the prior art, and the default bearer is always in a reserved state, which causes waste of network resources.
  • a data transmission method is described in detail below in conjunction with a specific implementation scenario.
  • the UE that can be applied to the embodiment of the present invention is, for example, a UE whose primary service type is a small data service or a non-IP connection service.
  • the network attaching process is triggered.
  • the network may select that the UE does not establish a default bearer, and the specific implementation is as follows:
  • the implementation steps of the network attachment process include:
  • the UE sends an attach request message to the radio access network element, where the attach request message includes whether to establish a default bearer indication for the UE.
  • the value of the attachment type in the attach request message is extended. If the value is 100, the default bearer indication is established when the user equipment performs EPS attachment; when the value is 101, the EPS is indicated for the user equipment. The default bearer indication is not established when the joint with IMSI is attached.
  • the extension of the attachment type is not limited to the above-mentioned example values, and the value of the reservation can be arbitrarily defined. Or indicating whether a default bearer indication is established for the user equipment by using an additional update type in the attach request message;
  • the second bit of the cell is defined, and this bit is used to indicate whether a default bearer is established for the user equipment during the attach procedure.
  • the bit When the bit is 0, it indicates that the user equipment does not establish a default bearer during the attaching process. When the bit is 1, it is attached.
  • a default bearer is established for the user equipment during the process. Or, by using a device priority (Device Priority) in the attach request message, whether to establish a default bearer indication for the user equipment;
  • the radio access network element forwards the attach request message to a mobility management network element.
  • This step can be referred to the existing implementation scheme, and details are not described herein again.
  • the mobility management network element sends an Update Location Request message to the HSS.
  • the update location request message may include UE identity information and mobility management network element identity information
  • the UE identity information may be an International Mobile Subscriber Identification Number (IMSI) of the UE, or an International Mobile Equipment Identification Number (IMSI); the mobility management network element identifier information may be an SGSN Number Or MME ID, this definition is also suitable for other embodiments herein.
  • IMSI International Mobile Subscriber Identification Number
  • IMSI International Mobile Equipment Identification Number
  • MME ID Mobile Management Entity
  • the HS S After receiving the Update Location Request message, the HS S sends an Update Location Ack message to the mobility management network element.
  • the update location confirmation message includes the subscription information of the UE.
  • the subscription information includes whether to establish a default bearer indication for the UE.
  • the HS S may pre-configure in its subscription information whether to establish a default bearer indication for the UE, so as to facilitate mobility management.
  • the network element can learn whether the default bearer needs to be established for the user equipment according to the obtained subscription information of the UE. 306.
  • the mobility management network element receives the Update Location ACK message, for example, determining whether a default bearer needs to be established according to whether the UE includes a default bearer indication included in the subscription information of the UE.
  • the default bearer indication is established for the UE and the default bearer indication included in the attach request message sent by the UE is included in the subscription information of the UE, and whether the default bearer needs to be established is determined.
  • the mobility management network element receives a context response message sent by the original mobility management network element, where the context response message includes context information of the user equipment, and the context information of the user equipment is saved
  • the establishment of a default bearer indication needs to be described, if there is a conflict between whether the default bearer indication for the UE is included in the subscription information of the UE and whether the default bearer indication is established for the UE included in the attach request message, the mobility management network The determining is based on whether the default bearer indication is set for the UE included in the attach request message.
  • the mobility management network element determines to establish a default bearer according to whether the user equipment is configured to establish a default bearer, perform the following step 307 to perform a normal EPC attach process, that is, use an existing implementation scheme to establish a default bearer;
  • the mobility management network element determines that the default bearer is not established according to whether the default bearer indication is set for the user equipment, save the non-establishment default bearer indication in the context information of the user equipment, and perform the following step 308 to the wireless
  • the access network element sends a default bearer indication to notify the radio access network element that the user equipment does not establish a default bearer.
  • the mobility management network element determines to establish a default bearer according to whether the default bearer indication is established for the user equipment, perform a normal EPC attach procedure to establish a default bearer.
  • This step can be referred to the existing implementation scheme, and details are not described herein again.
  • the mobility management network element determines, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established, the mobility management network element sends an attach accept message to the wireless access network element.
  • the attachment accept message includes no default bearer indication. 309. After receiving the attach accept message, the radio access network element saves the default bearer indication in the context information of the UE, and does not establish a default bearer for the user equipment.
  • the radio access network element forwards the attach accept message to the user equipment.
  • the user equipment sends an attach complete message to the radio access network element, where the EPS session management message container in the message is set to be optional, that is, the ACTIVATE DEFAULT EPS BEARER may be accepted without including the original active default EPS payload context. CONTEXT ACCEPT message;
  • the radio access network element forwards the attach completion message to the mobility management network element.
  • the mobility management network element performs data transmission with the user equipment by using NAS signaling when the default bearer is not established.
  • the mobility management network element may send, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established, and not send the default bearer indication to the radio access network element. In order to notify the radio access network element that the user equipment does not establish a default bearer.
  • the default bearer does not need to be used for data transmission, and the attaching process in the prior art establishes a default bearer for all types of UEs.
  • the embodiment may be a UE that does not need to use the default bearer for data transmission, and does not establish a default bearer, and does not need to use the default bearer when the data transmission is performed by the UE with the small data service or the non-IP connection service as the primary service type, but the default bearer is not required.
  • the embodiment of the present invention saves network resources by being in a reserved state and causing waste of network resources.
  • the new mobility management network element can not only know whether the original mobility management network element has established a default bearer for the UE, but also can choose not to establish a default bearer for the UE.
  • the implementation is as follows:
  • the implementation steps of the tracking area/routing area update process include:
  • the UE initiates a tracking area/routing area update request message to the radio access network element.
  • the tracking area/routing area update request message includes whether to establish a default bearer indication for the UE.
  • the radio access network element forwards the tracking area/routing area update request message to a new mobility management network element.
  • the new mobility management network element sends a context request message to the original mobility management network element.
  • the original mobility management network element After receiving the context request message, the original mobility management network element obtains the context information of the UE, and sends a context response message to the new mobility management network element, where the context corresponding message carries no default bearer indication.
  • the context response message includes context information of the UE.
  • the default bearer indication is not saved in the context information of the UE.
  • the context information of the UE is saved without establishing a default bearer indication.
  • This step can be referred to the existing implementation scheme, and details are not described herein again.
  • the new mobility management network element sends a context confirmation message to the original mobility management network element.
  • the new mobility management network element sends an update location request message to the HSS.
  • the update location request message includes UE identification information and mobility management network element identification information.
  • the HS S sends a cancel location message to the original mobility management network element.
  • the original mobility management network element sends a cancel location confirmation message to the HSS.
  • the HS S sends an update location confirmation message to the new mobility management network element.
  • the subscription location confirmation message may include subscription information of the UE.
  • the new mobility management network element sends a tracking area/routing area update accept message to the UE.
  • the UE sends a tracking area/routing area update complete message to the new mobility management network element.
  • the mobility management network element performs data transmission with the user equipment by using NAS signaling when the default bearer is not established.
  • the new mobility management network element can not only know whether the original mobility management network element has established a default bearer for the UE, but also may choose not to establish a default for the UE. Hosted.
  • the new mobility management network element may also be a UE that does not need to use the default bearer for data transmission, and does not establish a default bearer, and avoids the UE not.
  • the default bearer is required, but the default bearer is always in a reserved state, which causes a waste of network resources.
  • the embodiment of the present invention saves network resources.
  • the foregoing first optional implementation scenario completes the network attachment process
  • the foregoing second optional implementation scenario triggers the tracking area/routing area update process
  • the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, after receiving the downlink data from the data sender, the mobility management network element may pass the current There is NAS signaling to transmit the downlink data to the UE.
  • the implementation steps of downlink data transmission include:
  • the data sender sends downlink data to the mobility management network element.
  • the data sender may be a gateway device, or may be an MTC IWF (Interoperability Function Module for Machine Type Communication) or other terminal that transmits small data.
  • MTC IWF Interoperability Function Module for Machine Type Communication
  • the downlink data carries whether the data transmission indication needs to be performed by using a user plane bearer.
  • the mobility management network element After receiving the downlink data, the mobility management network element sends a paging message to the radio access network element.
  • the mobility management network element may query whether the context information of the user equipment includes not establishing a default bearer indication. If the context information of the user equipment includes not establishing a default bearer indication, the paging message includes No need to transmit data indication through the user plane bearer;
  • the mobility management network element determines whether the downlink data includes the data transmission indication that does not need to be carried by the user plane bearer, and if the downlink data includes the data transmission indication that does not need to be performed by the user plane bearer, the paging message includes The data transmission indication is performed by the user plane bearer.
  • the radio access network element forwards the paging message to the UE.
  • the UE After receiving the paging message, the UE determines whether the paging message includes a data transmission indication that does not need to be performed by using a user plane bearer.
  • the process goes to step 514 to initiate a PDN connection establishment process, so as to facilitate Data transmission is carried out through the user plane bearer.
  • the UE may determine that data transmission is not required by the user plane bearer, the following step 505 is continued.
  • the radio access network element forwards the service request message to the mobility management network element.
  • the mobility management network element queries whether context information of the user equipment includes not establishing a default bearer indication.
  • the context information of the user equipment includes not establishing a default bearer indication, sending an initial context setup request to the radio access network element.
  • the initial context setup request includes security context information and the non-establishment default bearer indication.
  • the radio access network element After receiving the initial context setup request, the radio access network element does not establish a data bearer according to the non-establishment of a default bearer indication.
  • the radio access network element sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message includes not establishing a data radio bearer indication.
  • the UE sends an RRC connection reconfiguration complete message to the radio access network element.
  • the radio access network element sends an initial context setup response message to the mobility management network element.
  • the mobility management network element performs data transmission with the UE by using NAS signaling.
  • the mobility management network element sends downlink data to the UE by using NAS signaling.
  • the UE determines that data transmission needs to be performed by using a user plane bearer, the UE initiates a PDN connection establishment procedure, so as to facilitate data transmission through the user plane bearer.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, when the UE needs to receive downlink data from the data sender, the mobility is established even if the network side does not establish a default bearer for the UE.
  • the management network element may also transmit the downlink data to the UE by using existing NAS signaling after receiving downlink data from the data sender.
  • the default bearer is always in a reserved state, which causes a waste of network resources.
  • the embodiment of the present invention saves network resources.
  • the fourth optional implementation scenario of the embodiment of the present invention after the foregoing first optional implementation scenario completes the network attachment process, or the foregoing second optional implementation scenario triggers the tracking area/routing area update process
  • the UE needs to perform small data service or non-IP connection service, for example, the UE needs to send uplink data to the data receiver, the UE can perform uplink data transmission by using the existing NAS signaling and the mobility management network element, and The mobility management network element sends uplink data to the data receiver.
  • an implementation step of uplink data transmission includes:
  • the UE may determine whether the data transmission needs to be performed through the user plane bearer in the following two manners:
  • Manner 1 The UE determines, according to the size of the data to be sent, whether data transmission needs to be performed through the user plane bearer;
  • the UE determines that data transmission by using the user plane bearer is not required, and data transmission by NAS signaling is selected; If the size of the data volume is greater than the first preset threshold, the UE selects to determine that data transmission needs to be performed by using the user plane bearer.
  • the first preset threshold may be, for example, l kbytes. It can be understood that the first preset threshold may also be set to other values according to an actual application.
  • Manner 2 The UE determines, according to the frequency to be sent, whether the data needs to be transmitted through the user plane bearer;
  • the UE determines that data transmission by using the user plane bearer is not required, and data transmission by NAS signaling is selected; The frequency at which the data needs to be sent If the second preset threshold is greater than the second preset threshold, the UE selects to determine that the data transmission needs to be performed by using the user plane bearer.
  • the second preset value may be sent once every 10 minutes or less. It can be understood that the second preset threshold may also be set to other values according to an actual application.
  • the UE may determine that data transmission needs to be performed through the user plane bearer, and then jump to step 612 to initiate a PDN connection establishment process, so as to facilitate data transmission through the user plane bearer.
  • the radio access network element forwards the service request message to the mobility management network element.
  • This step can be referred to the existing implementation scheme, and details are not described herein again.
  • the mobility management network element queries whether the context information of the user equipment includes not establishing a default bearer indication.
  • the context information of the user equipment includes not establishing a default bearer indication, sending an initial context setup request to the radio access network element.
  • the initial context setup request includes security context information and the non-establishment default bearer indication.
  • the radio access network element After receiving the initial context setup request, the radio access network element does not establish a data bearer according to the not establishing a default bearer indication.
  • the radio access network element sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message includes not establishing a data radio bearer indication.
  • the UE sends an RRC connection reconfiguration complete message to the radio access network element.
  • the radio access network element sends an initial context setup response message to the mobile Dynamic management of network elements.
  • the UE performs data transmission with the mobility management network element by using NAS signaling.
  • the UE sends uplink data to the mobility management network element through NAS signaling.
  • the mobility management network element After receiving the uplink data, the mobility management network element sends the uplink data to a data receiver.
  • the UE determines that data transmission needs to be performed by using a user plane bearer, the UE initiates a PDN connection establishment procedure, so as to facilitate data transmission through the user plane bearer.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, when the UE needs to send uplink data to the data receiver, the UE may pass the NAS even if the network side does not establish a default bearer for the UE.
  • the signaling and the mobility management network element perform uplink data transmission, and the mobility management network element sends the uplink data to the data receiver.
  • the prior art avoids the problem that the default bearer is used, and the default bearer is always in the reserved state, which causes the network resources to be wasted.
  • the embodiment of the present invention saves network resources.
  • the fifth optional implementation scenario of the embodiment of the present invention after the foregoing first optional implementation scenario completes the network attachment process, or the foregoing second optional implementation scenario triggers the tracking area/routing area update process
  • the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, after receiving the downlink data from the data sender, the mobility management network element can pass the new NAS signaling (signaling plane data transmission accept message) transmits the downlink data to the UE.
  • the implementation steps of downlink data transmission include:
  • the data sender sends downlink data to the mobility management network element.
  • the data sender may be a gateway device, or may be an MTC IWF (Interoperability Function Module for Machine Type Communication) or other terminal that transmits small data.
  • MTC IWF Interoperability Function Module for Machine Type Communication
  • the data sender can send the downlink data, whether the data transmission indication needs to be performed by the user plane bearer is carried in the downlink data.
  • the mobility management network element After receiving the downlink data, the mobility management network element sends a paging message to the radio access network element.
  • the mobility management network element may query whether the context information of the user equipment includes not establishing a default bearer indication. If the context information of the user equipment includes not establishing a default bearer indication, the paging message includes No need to transmit data indication through the user plane bearer;
  • the mobility management network element determines whether the downlink data includes the data transmission indication that does not need to be carried by the user plane bearer, and if the downlink data includes the data transmission indication that does not need to be performed by the user plane bearer, the paging message includes The data transmission indication is performed by the user plane bearer.
  • the radio access network element forwards the paging message to the UE.
  • the UE After receiving the paging message, the UE determines whether the paging message includes a data transmission indication that does not need to be performed by using a user plane bearer.
  • the process goes to step 712 to initiate a PDN connection establishment process, so as to facilitate Data transmission is carried out through the user plane bearer.
  • the UE may determine that data transmission is not required by the user plane bearer, the following step 705 is continued.
  • the UE determines that data transmission is not required by the user plane bearer, send a signaling plane data transmission request to the radio access network element.
  • the signaling plane data transmission request is a new NAS signaling provided by an embodiment of the present invention.
  • the radio access network element forwards the signaling plane data transmission request to the mobility management network element.
  • This step can be referred to the existing implementation scheme, and details are not described herein again.
  • the mobility management network element sends a first signaling plane data transmission accept message to the radio access network element.
  • the first signaling plane data transmission accept message includes: security context information and downlink data.
  • the radio access network element sends a second signaling plane data transmission accept message to the user equipment.
  • the second signaling plane data transmission accept message includes: the downlink data. It should be noted that the first signaling plane data transmission accept message and the second signaling plane data transmission accept message are a new NAS signaling provided by the embodiment of the present invention.
  • the UE receives the second signaling plane data transmission accept message, and may obtain downlink data from the UE.
  • the UE may also determine whether it is still necessary to continue to use the signaling connection, and send a signaling plane data transmission complete message to the radio access network element, the signaling plane data transmission completion message including whether to release the signaling connection indication.
  • the radio access network element forwards the signaling plane data transmission complete message to the mobility management network element.
  • the mobility management network element may determine whether to release the signaling connection according to whether to release the signaling connection indication.
  • the UE determines that data transmission needs to be performed by using a user plane bearer, the UE initiates a PDN connection establishment procedure, so as to facilitate data transmission by using a user plane bearer.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, even if the network side does not establish a default bearer for the UE, the mobility management.
  • the network element may also transmit the downlink data to the UE by using new NAS signaling after receiving downlink data from the data sender.
  • the prior art avoids the problem that the default bearer is used, and the default bearer is always in the reserved state, which causes the network resources to be wasted.
  • the embodiment of the present invention saves network resources.
  • the sixth optional implementation scenario of the embodiment of the present invention after the foregoing first optional implementation scenario completes the network attachment process, or the foregoing second optional implementation scenario triggers the tracking area/routing area update process
  • the UE may perform the new NAS signaling (signaling surface data transmission request) and the mobility management network element.
  • the transmission of the uplink data, and the uplink management data is sent by the mobility management network element to the data receiver.
  • the implementation steps of the uplink data transmission include:
  • the UE may determine whether the data transmission needs to be performed through the user plane bearer in the following two manners:
  • Manner 1 The UE determines, according to the size of the data to be sent, whether data transmission needs to be performed through the user plane bearer;
  • the UE determines that data transmission by using the user plane bearer is not required, and data transmission by NAS signaling is selected; if the data to be sent is to be sent The size of the quantity is greater than the first pre- If the value is set, the UE chooses to determine that the data transmission needs to be performed by the user plane bearer.
  • the first preset threshold may be, for example, lk bytes. It can be understood that the first preset threshold may also be set to other values according to an actual application.
  • Manner 2 The UE determines, according to the frequency to be sent, whether the data needs to be transmitted through the user plane bearer;
  • the UE determines that data transmission by using the user plane bearer is not required, and data transmission by NAS signaling is selected; If the frequency that the data needs to be sent is greater than the second preset threshold, the UE selects to determine that the data transmission needs to be performed by using the user plane bearer.
  • the second preset threshold may be sent once every 10 minutes. It can be understood that the second preset threshold may also be set to other values according to the actual application.
  • the UE may determine that data transmission needs to be performed through the user plane bearer, and then jump to step 811 to initiate a PDN connection establishment process, so as to facilitate data transmission through the user plane bearer.
  • the UE determines that data transmission is not required by the user plane bearer, send a signaling plane data transmission request to the radio access network element.
  • the signaling plane data transmission request includes: uplink data.
  • the radio access network element forwards the signaling plane data transmission request to the mobility management network element.
  • This step can be referred to the existing implementation scheme, and details are not described herein again.
  • the mobility management network element extracts the uplink data from the signaling plane data transmission request.
  • the mobility management network element sends the uplink data to the data receiver. 807.
  • the mobility management network element sends a first signaling plane data transmission accept message to the radio access network element.
  • the first signaling plane data transmission accept message includes: security context information.
  • the radio access network element sends a second signaling plane data transmission accept message to the user equipment.
  • the UE may further determine whether it is still necessary to continue to use the signaling connection, and send a signaling plane data transmission complete message to the radio access network element, where the The face data transmission completion message includes whether to release the signaling connection indication.
  • the radio access network element forwards the signaling plane data transmission complete message to the mobility management network element.
  • the mobility management network element may determine whether to release the signaling connection according to whether to release the signaling connection indication.
  • the UE determines that data transmission needs to be performed by using a user plane bearer, the UE initiates a PDN connection establishment procedure, so as to facilitate data transmission by using a user plane bearer.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to send uplink data to the data receiver, and the UE can pass the new NAS even if the network side does not establish a default bearer for the UE.
  • the signaling and the mobility management network element perform uplink data transmission, and the mobility management network element sends the uplink data to the data receiver.
  • the embodiment of the present invention saves network resources, which avoids the problem that the default bearer is used in the prior art, and the default bearer is always in a reserved state, which causes waste of network resources.
  • the foregoing first option is optional. After the implementation scenario completes the network attachment process, or after the second optional implementation scenario triggers the tracking area/routing area update process, or after the third-six implementation scenarios complete the data transmission, when the network releases all PDNs In the bearer deactivation process, the UE may remain in the network attachment state even if the bearer to be deactivated is the last bearer of all PDN connections.
  • the implementation steps of the UE to maintain network attachment in the bearer deactivation process include:
  • the mobility management network element sends a delete bearer command to the serving gateway to receive the specified bearer when receiving the release indication of the radio access network element.
  • the serving gateway forwards the delete bearer command to a packet data gateway.
  • the packet data gateway sends a delete bearer request to the packet data gateway.
  • the serving gateway forwards the delete bearer request to the mobility management network element.
  • the mobility management network element determines whether the bearer to be deleted is the last bearer of all PDN connections.
  • step 907 If the bearer to be deleted is not the last bearer of all PDN connections, then go to step 907 to perform an operation of deactivating the bearer but not attaching;
  • the bearer to be deleted is the last bearer of all the PDN connections, it is determined whether the context information of the user equipment or the subscription data of the user equipment does not include the default bearer indication.
  • step 906 perform the following step 906 to perform the detach operation
  • step 907 is performed to send a deactivation bearer request to the radio access network element to request the radio access network element to send an RRC link reconfiguration message to the user equipment.
  • This step can be referred to the existing implementation scheme, and details are not described herein again. 907.
  • the to-be-deleted bearer is the last bearer of all PDN connections, and the context information of the user equipment or the subscription data of the user equipment includes not establishing a default bearer indication, sending a deactivated bearer to the radio access network element. request.
  • the deactivation bearer request includes a deactivated EPS bearer context request and a no detach indication
  • the RRC link reconfiguration message includes a deactivate EPS bearer context request and a no detach indication.
  • the radio access network element forwards the RRC connection reconfiguration message to the
  • the UE sends an RRC connection reconfiguration complete message to the radio access network element.
  • the radio access network element sends a deactivation bearer response to the mobility management network element.
  • the UE sends a deactivated EPS bearer context accept message to the radio access network element.
  • the radio access network element forwards the deactivated EPS bearer context accept message to the mobility access network element.
  • the mobility management network element sends a delete bearer response message to the serving gateway.
  • the UE when the UE closes the data connection and triggers the bearer deactivation process, if the PDN connection to be deleted is the last PDN connection, even if the network side does not establish a default bearer for the UE, the UE may remain in the network attachment state.
  • the embodiment of the present invention further provides a data transmission device, which may be a mobility management network element, as shown in FIG.
  • the obtaining module 100 is configured to acquire whether a default bearer indication is established for the user equipment.
  • the sending module 101 is configured to: if the default bearer is not established according to whether the user equipment is configured to establish a default bearer indication, send a default bearer indication to the radio access network element;
  • the transmitting module 103 is configured to perform data transmission with the user equipment by using NAS signaling when the default bearer is not established.
  • the mobility management network element may further include: a storage module 102, configured to save, in the context information of the user equipment, the non-establishment default bearer indication.
  • the mobility management When the network element determines that the default bearer is not established for the user equipment, the network element sends a default bearer indication to the radio access network element to notify the radio access network element that the user equipment is not Establishing a default bearer, and when the default bearer is not established, the mobility management network element performs data transmission with the user equipment by using NAS signaling.
  • the network side may select that the user equipment does not establish a default bearer, and on the other hand, when it is required to transmit data based on non-IP link service data or small data volume service, even if the network side does not have a location
  • the user equipment establishes a default bearer, and the mobility management network element can also perform data transmission with the user equipment by using NAS signaling.
  • the prior art does not need to use the default bearer, and the default bearer is always in the reserved state, which causes the network resource to be wasted.
  • the embodiment of the present invention saves network resources.
  • the UE when the UE starts to register the network, the UE triggers the network attach procedure.
  • the mobility management network element may select that the UE does not establish a default bearer.
  • the obtaining module 100 is specifically configured to: receive, by the user equipment, whether a default bearer indication is established for the user equipment by using an attach request message;
  • the acquiring module 100 is specifically configured to receive, by the user equipment, whether the user equipment establishes a default bearer indication by using an attach request message, and the user that is sent by the home subscriber subscription server by updating the location confirmation message.
  • the subscription information of the device, the subscription information includes whether to establish a default bearer indication for the user equipment; or, optionally, the obtaining module 100 is specifically configured to receive a context response message sent by the original mobility management network element, where The context response message includes the context information of the user equipment, and the context information of the user equipment is saved without establishing a default bearer indication.
  • the sending module 101 is specifically configured to send, by using an attach accept message, a default bearer indication to the radio access network element.
  • the new mobility management network element can not only know whether the original mobility management network element has established a default bearer for the UE, but also can choose not to establish a default bearer for the UE.
  • the data transmission device as shown in FIG. 10a, further includes:
  • the receiving module 105a is configured to receive a context request message sent by the new mobility management network element, where the context request message is received by the new mobility management network element. After the tracking area/routing area update request sent by the user equipment is sent, the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment;
  • the sending module 101 is further configured to send a context response message to the new mobility management network element, where the context response message includes context information of the user equipment, and the context information of the user equipment is saved.
  • the default bearer indication is such that the new mobility management network element determines whether to establish a default bearer for the user equipment.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to send uplink data to the data receiver, the UE may perform uplink data by using the existing NAS signaling and the mobility management network element. And transmitting, by the mobility management network element, uplink data to the data receiver.
  • the data transmission device further includes:
  • the receiving module 105b is configured to receive a service request sent by the user equipment, where the service request is sent by the user equipment when it is determined that data transmission is not required by using a user plane bearer;
  • the querying module 106 is configured to query whether the context information of the user equipment does not establish a default bearer indication.
  • the sending module 101 is further configured to: send an initial context establishment request to the radio access network element to notify the wireless connection if the querying module that the querying module includes that the user equipment does not establish a default bearer indication
  • the inbound network element does not establish a data radio bearer for the user equipment, and sends an RRC connection reconfiguration message to the user equipment, where the initial context setup request includes security context information and the non-establishment default bearer indication, the RRC
  • the connection reconfiguration message includes not establishing a data radio bearer indication.
  • the mobility management network element when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, the mobility management network element receives downlink data from the data sender. Thereafter, the downlink data may be transmitted to the UE by using existing NAS signaling.
  • the sending module 101 is further configured to: if the context information of the user equipment includes not setting a default bearer indication, or if the downlink data includes a data transmission indication that does not need to be carried by the user plane bearer, sending, to the user equipment, Paging message
  • the paging message includes a data transmission indication that does not need to be carried by a user plane bearer.
  • the mobility management network element when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, the mobility management network element receives downlink data from the data sender. Thereafter, the downlink data may be transmitted to the UE through a new NAS signaling (signaling plane data transmission accept message).
  • NAS signaling signaling plane data transmission accept message
  • the transmitting module 104 is specifically configured to: when the context information of the user equipment includes not establishing a default bearer indication, or if the downlink data includes an indication that the data transmission is not required by the user plane bearer, The user equipment sends a paging message, where the paging message includes a data transmission indication that does not need to be carried by the user plane bearer; the transmission module 104 is further configured to receive a signaling plane data transmission request sent by the user equipment, where the The face data transmission request is determined by the user equipment to be sent when data transmission is not required by the user plane bearer;
  • the transmitting module 104 is further configured to send, by the radio access network element, a first signaling plane data transmission accept message, to trigger the radio access network element to send second signaling plane data to the user equipment. Transmitting an accept message, where the first signaling plane data
  • the transmission accept message includes: security context information and downlink data
  • the second signaling plane data transmission accept message includes: the downlink data.
  • the transmission module 104 is specifically configured to receive a signaling plane data transmission request sent by the user equipment, where the signaling plane data transmission request includes: uplink data, where the signaling plane data transmission request is determined by the user equipment It does not need to be sent when data transmission is carried out through the user plane bearer;
  • the device further includes:
  • the extracting module 107 is configured to extract the uplink data from the signaling plane data transmission request
  • the transmitting module 104 is further configured to send, by the radio access network element, a first signaling plane data transmission accept message, to trigger the radio access network element to send second signaling plane data to the user equipment. And transmitting the accept message, where the first signaling plane data transmission accept message includes: security context information.
  • the method further includes:
  • the receiving module 105c is configured to receive a signaling plane data transmission complete message sent by the user equipment, where the signaling plane data transmission complete message includes whether to release a signaling connection indication;
  • the determining module 108 is configured to determine whether to release the signaling connection according to whether the signaling connection indication is released.
  • the data connection when the UE closes the data connection, for example, when the UE does not need to perform the small data service or the non-IP connection service, the data connection may be closed, and the bearer deactivation process is triggered.
  • the bearer deactivation process when the PDN connection to be deleted is the last PDN connection, even if it is not established for the UE.
  • the default bearer can also keep the UE in the network attached state.
  • the data transmission device as shown in FIG. 10d, further includes:
  • the receiving module 105d is configured to receive a delete bearer request sent by the packet data gateway, and the determining module 109 is configured to determine, when the PDN connection to be deleted is the last PDN connection, the context information of the user equipment or the subscription data of the user equipment. Whether to include not establishing a default bearer indication;
  • the sending module 101 is further configured to: if the default bearer indication is not established, send a deactivation bearer request to the radio access network element, to request the radio access network element to send an RRC link reconfiguration to the user equipment.
  • the message where the deactivation bearer request includes a deactivate EPS bearer context request and a no detach indication, the RRC link reconfiguration message includes a deactivate EPS bearer context request and a no detach indication.
  • the embodiment of the present invention further provides a data transmission device, which may be a user device, as shown in FIG.
  • the sending module 110 is configured to send, to the mobility management network element, whether to establish a default bearer indication for the user equipment, to notify the mobility management network element to determine, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established. Sending a default bearer indication to the radio access network element;
  • the transmission module 1 11 is configured to perform data transmission with the mobility management network element by using NAS signaling when the default bearer is not established.
  • the user equipment sends a default bearer indication to the mobility management network element, so that the mobility management network element determines whether to establish a default bearer indication for the user equipment.
  • the default bearer is established, the default bearer indication is not sent to the radio access network element, and when the default bearer is not established, data transmission is performed by using the NAS signaling with the mobility management network element.
  • the network side may select that the user equipment does not establish a default bearer, and on the other hand, when the user equipment needs to transmit data based on non-IP link service data or small data volume service, even if the network side does not Establishing a default bearer for the user equipment, where the user equipment also performs data transmission with the mobility management network element by using NAS signaling.
  • the embodiment of the present invention saves network resources, which avoids the problem that the default bearer is used in the prior art, and the default bearer is always in a reserved state, which causes waste of network resources.
  • the UE when the UE starts to register the network, the UE triggers the network attach procedure.
  • the network may select that the UE does not establish a default bearer.
  • the sending module 110 is specifically configured to send, by using an attach request message, a mobility bearer to establish a default bearer indication for the user equipment. Whether the default bearer indication is established for the user equipment is indicated by an attachment type in the attach request message;
  • the new mobility management network element can not only know whether the original mobility management network element has established a default bearer for the UE, but also can choose not to establish a default bearer for the UE.
  • the sending module 110 is further configured to send a tracking area/routing area update request message to the new mobility management network element, where the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment, so that The new mobility management network element determines whether a default bearer is established for the user equipment.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to send uplink data to the data receiver, the UE may perform uplink data by using the existing NAS signaling and the mobility management network element. And transmitting, by the mobility management network element, uplink data to the data receiver.
  • the sending module 110 is further configured to: when the user equipment determines that data transmission is not required by the user plane bearer, send a service request to the mobility management network element to notify the mobility management network element as the user The device does not establish a data radio bearer.
  • the mobility management network element when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, the mobility management network element receives downlink data from the data sender. Thereafter, the downlink data may be transmitted to the UE by using existing NAS signaling.
  • the data transmission device as shown in FIG. 11a, further includes:
  • the receiving module 112 a is configured to receive a paging message sent by the mobility management network element, where the paging message includes an indication that the data transmission is not required by the user plane bearer, and the mobility management network element determines the The context information of the user equipment includes when the default bearer indication is not established, or when the downlink data includes the data transmission indication without using the user plane bearer.
  • the mobility management network element when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, the mobility management network element receives downlink data from the data sender. Thereafter, the downlink data may be transmitted to the UE through a new NAS signaling (signaling plane data transmission accept message).
  • NAS signaling signaling plane data transmission accept message
  • the transmission module 11 1 is specifically configured to receive a paging message sent by the mobility management network element, where the paging message includes a data transmission indication that does not need to be carried by a user plane bearer, and is configured by the mobility management network element. Determining that the context information of the user equipment includes not setting a default bearer indication, or the downlink data includes sending when the data transmission indication is not required by the user plane bearer;
  • the transmission module 11 1 is further configured to: when the user equipment determines that data transmission is not required by the user plane bearer, send a signaling plane data transmission request to the radio access network element to request the radio access The network element forwards the signaling plane data transmission request to the mobility management network element;
  • the transmitting module 11 1 is further configured to receive, by the radio access network element, a second signaling plane data transmission accept message, where the second signaling plane data transmission accept message is used by the radio access network After receiving the first signaling plane data transmission accept message sent by the mobility management network element, the first signaling plane data transmission accept message includes: security context information and the downlink data, the second The signaling plane data transmission accept message includes: the downlink data.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to send uplink data to the data receiver, the UE may use the new NAS signaling (signal plane data transmission request) and the mobile The mobility management network element performs uplink data transmission, and the mobility management network element sends uplink data to the data receiver.
  • the specific implementation is as follows:
  • the transmitting module 11 1 is specifically configured to: when it is determined that data transmission is not required by the user plane bearer, send a signaling plane data transmission request to the radio access network element, to request the radio access network element to forward the The signaling plane data transmission request is sent to the mobility management network element, and the signaling plane data transmission request includes: uplink data;
  • the transmitting module 11 1 is further configured to receive, by the radio access network element, a second signaling plane data transmission accept message, where the second signaling plane data transmission accept message is used by the radio access network After receiving the first signaling plane data transmission accept message sent by the mobility management network element, the first signaling plane data transmission accept message includes: security context information.
  • the sending module 110 is further configured to send a signaling plane data transmission completion message to the mobility management network element, where the signaling plane data transmission completion message includes whether to release the signaling connection indication.
  • the embodiment of the present invention further provides a data transmission device, which may be a mobility management network element.
  • the method specifically includes:
  • the receiver 123 is configured to: determine whether to establish a default bearer indication for the user equipment, and the transmitter 122 is configured to: if the default bearer is not established according to whether the default bearer indication is established for the user equipment, sending to the radio access network element is not established.
  • Default bearer indication ;
  • the receiver 123 is further configured to receive data sent by the user equipment by using a NAS signaling when the default bearer is not established;
  • the transmitter 122 is further configured to send data to the user equipment by using a NAS signaling when a default bearer is not established.
  • the mobility management network element sends, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established, and sends a default bearer indication to the radio access network element to notify the The radio access network element is set for the user
  • the default bearer is not established, and when the default bearer is not established, the mobility management network element performs data transmission with the user equipment by using NAS signaling.
  • the network side may select that the user equipment does not establish a default bearer, and on the other hand, when it is required to transmit data based on non-IP link service data or small data volume service, even if the network side does not have a location
  • the user equipment establishes a default bearer, and the mobility management network element can also perform data transmission with the user equipment by using NAS signaling.
  • the prior art does not need to use the default bearer, and the default bearer is always in the reserved state, which causes the network resource to be wasted.
  • the embodiment of the present invention saves network resources.
  • the driving circuit 12001 is configured to provide drivers for each hardware in the mobility management network element so that each hardware can work normally.
  • bus system 12000 which includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • bus system 12000 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the various buses are labeled as Bus System 12000 in Figure 12.
  • the mobility management network element may select that the UE does not establish a default load.
  • the receiver is specifically configured to receive, by using the attach request message, the user equipment to establish a default bearer indication for the user equipment;
  • the receiver is configured to receive, by using the attach request message, whether the user equipment establishes a default bearer indication for the user equipment, and the user equipment that is sent by the home subscriber subscription server by updating the location confirmation message.
  • the subscription information, the subscription information includes whether a default bearer indication is established for the user equipment;
  • the receiver is configured to receive a context response message sent by the original mobility management network element, where the context response message includes context information of the user equipment, where the context information of the user equipment is saved. There is no default bearer indication established.
  • the transmitter is specifically configured to send a default bearer indication to the wireless access network element by using an attach accept message.
  • the data transmission apparatus further includes: a memory 124, configured to save, in the context information of the user equipment, that the default bearer indication is not established.
  • a memory 124 configured to save, in the context information of the user equipment, that the default bearer indication is not established.
  • the tracking area/routing area update process is triggered, and the UE provides the tracking area/routing area update by using the solution provided by the embodiment of the present invention.
  • the new mobility management network element can not only know whether the original mobility management network element has established a default bearer for the UE, but also can choose not to establish a default bearer for the UE.
  • the receiver is further configured to receive a context request message sent by a new mobility management network element, where the context request message receives, by the new mobility management network element, a tracking area/routing area update request sent by the user equipment And sending, the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment;
  • the transmitter is further configured to send a context response message to the new mobility management network element, where the context response message includes context information of the user equipment, and the context information of the user equipment is saved without establishing a default.
  • Carrying instructions to make The new mobility management network element determines whether a default bearer is established for the user equipment.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to send uplink data to the data receiver, the UE may perform uplink data by using the existing NAS signaling and the mobility management network element. And transmitting, by the mobility management network element, uplink data to the data receiver.
  • the receiver is further configured to receive a service request sent by the user equipment, where the service request is sent by the user equipment when it is determined that data transmission is not required by using a user plane bearer;
  • the data transmission apparatus further includes: a processor 121, configured to query whether the context information of the user equipment includes not establishing a default bearer indication; and the transmitter is further configured to: if the query module
  • the initial context setup request is sent to the radio access network element, to notify the radio access network element that the radio equipment is not established by the radio access network element.
  • the mobility management network element when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, the mobility management network element receives downlink data from the data sender. Thereafter, the downlink data may be transmitted to the UE by using existing NAS signaling.
  • the transmitter is further configured to: if the context information of the user equipment includes When the default bearer indication is set, or if the downlink data includes an indication that the data transmission is not required by the user plane bearer, the paging message is sent to the user equipment;
  • the paging message includes a data transmission indication that does not need to be carried by a user plane bearer.
  • the mobility management network element when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, the mobility management network element receives downlink data from the data sender. Thereafter, the downlink data may be transmitted to the UE through a new NAS signaling (signaling plane data transmission accept message).
  • NAS signaling signaling plane data transmission accept message
  • the transmitter is specifically configured to: when the context information of the user equipment includes not establishing a default bearer indication, or send the homing to the user equipment if the downlink data includes an indication that the data transmission is not required by the user plane bearer Calling the message, the paging message includes an indication that the data transmission is not required by the user plane bearer;
  • the receiver is further configured to receive a signaling plane data transmission request sent by the user equipment, where the signaling plane data transmission request is sent by the user equipment when it is determined that data transmission is not required by using a user plane bearer;
  • the transmitter is further configured to send, by the radio access network element, a first signaling plane data transmission accept message, to trigger the radio access network element to send a second signaling plane data transmission to the user equipment.
  • a first signaling plane data transmission accept message includes: security context information and downlink data
  • the second signaling plane data transmission accept message includes: the downlink data.
  • the receiver is specifically configured to receive a signaling plane data transmission request sent by the user equipment, where the signaling plane data transmission request includes: uplink data, The signaling plane data transmission request is sent by the user equipment when it is determined that data transmission is not required by the user plane bearer;
  • the device also includes:
  • a processor configured to extract the uplink data from the signaling plane data transmission request, where the transmitter is further configured to send, by the radio access network element, a first signaling plane data transmission accept message, to The triggering the radio access network element to send the second signaling plane data transmission accept message to the user equipment, where the first signaling plane data transmission accept message includes: security context information. Further, the receiver is further configured to receive a signaling plane data transmission completion message sent by the user equipment, where the signaling plane data transmission completion message includes whether to release a signaling connection indication;
  • the processor is further configured to determine whether to release the signaling connection according to whether the signaling connection indication is released.
  • the UE when the UE closes the data connection, for example, when the UE does not need to perform the small data service or the non-IP connection service, the data connection may be closed, and the bearer deactivation process is triggered.
  • the bearer deactivation process when the PDN connection to be deleted is the last PDN connection, the UE may remain in the network attachment state even if the default bearer is not established for the UE.
  • the receiver is further configured to receive a delete bearer request sent by the packet data gateway.
  • the data transmission apparatus further includes: a processor, configured to determine, when the bearer to be deleted is the last bearer of all PDN connections Whether the context information of the device or the subscription data of the user equipment does not include a default bearer indication;
  • the transmitter is further configured to: if the default bearer indication is not established, send a deactivation bearer request to the radio access network element, to request the radio access network element to use the
  • the user equipment sends an RRC link reconfiguration message, where the deactivation bearer request includes a deactivate EPS bearer context request and a no detach indication, and the RRC link reconfiguration message includes a deactivate EPS bearer context request and a no detach indication.
  • the embodiment of the present invention further provides a data transmission device, which may be a user device, as shown in FIG.
  • the transmitter 132 is configured to send, to the mobility management network element, whether to establish a default bearer indication for the user equipment, to notify the mobility management network element to determine, according to whether the default bearer indication is established for the user equipment, that the default bearer is not established. Sending a default bearer indication to the radio access network element;
  • the transmitter 132 is configured to send data to the mobility management network element by using NAS signaling when the default bearer is not established;
  • the receiver 133 is configured to receive data sent by the mobility management network element by using NAS signaling when the default bearer is not established.
  • the user equipment sends a default bearer indication to the mobility management network element, so that the mobility management network element determines whether to establish a default bearer indication for the user equipment.
  • the default bearer is established, the default bearer indication is not sent to the radio access network element, and when the default bearer is not established, data transmission is performed by using the NAS signaling with the mobility management network element.
  • the network side may select that the user equipment does not establish a default bearer, and on the other hand, when the user equipment needs to transmit data based on non-IP link service data or small data volume service, even if the network side does not Establishing a default bearer for the user equipment, where the user equipment also performs data transmission with the mobility management network element by using NAS signaling.
  • the embodiment of the present invention saves network resources, which avoids the problem that the default bearer is used in the prior art, and the default bearer is always in a reserved state, which causes waste of network resources.
  • the driving circuit 13001 is configured to provide driving for each hardware in the user equipment so that each hardware can work normally.
  • bus system 13000 which in addition to the data bus includes a power bus, a control bus, and a status signal bus.
  • the various buses are labeled as bus system 13000 in Figure 13.
  • the network side may select that the UE does not establish a default bearer.
  • the transmitter is specifically configured to send, by using an attach request message, a mobility bearer to establish a default bearer indication for the user equipment.
  • the new mobility management network element can not only know whether the original mobility management network element has established a default bearer for the UE, but also can choose not to establish a default bearer for the UE.
  • the transmitter is further configured to send a tracking area/routing area update request message to the new mobility management network element, where the tracking area/routing area update request message includes whether to establish a default bearer indication for the user equipment, so that the The new mobility management network element determines whether a default bearer is established for the user equipment.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to send uplink data to the data receiver, the UE may perform uplink data by using the existing NAS signaling and the mobility management network element. And transmitting, by the mobility management network element, uplink data to the data receiver.
  • the transmitter is further configured to: when the user equipment determines that data transmission is not required by the user plane bearer, send a service request to the mobility management network element to notify the mobility management network element as the user equipment No data radio bearers are established.
  • the mobility management network element when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, the mobility management network element receives downlink data from the data sender. Thereafter, the downlink data may be transmitted to the UE by using existing NAS signaling.
  • the receiver is further configured to receive a paging message sent by the mobility management network element, where the paging message includes a data transmission indication that does not need to be carried by a user plane bearer, and is determined by the mobility management network element.
  • the context information of the user equipment includes when the default bearer indication is not established, or when the downlink data includes the data transmission indication without using the user plane bearer.
  • the mobility management network element when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to receive downlink data from the data sender, the mobility management network element receives downlink data from the data sender. Thereafter, the downlink data may be transmitted to the UE through a new NAS signaling (signaling plane data transmission accept message).
  • NAS signaling signaling plane data transmission accept message
  • the receiver is specifically configured to receive a paging message sent by the mobility management network element, where the paging message includes an indication that data transmission is not required by using a user plane bearer, and is determined by the mobility management network element.
  • the context information of the user equipment includes: when the default bearer indication is not established, or when the downlink data includes the data transmission indication without using the user plane bearer;
  • the receiver is further configured to: when the user equipment determines that data transmission is not required by the user plane bearer, send a signaling plane data transmission request to the radio access network element to request the radio access network element. Forwarding the signaling plane data transmission request to the mobility management network element;
  • the receiver is further configured to receive, by the radio access network element, a second signaling plane data transmission accept message, where the second signaling plane data transmission accept message is received by the radio access network element And sending, after the first signaling plane data transmission accept message sent by the mobility management network element, the first signaling plane data transmission accept message includes: security context information and the downlink data, the second signaling The face data transmission accept message includes: the downlink data.
  • the UE when the UE needs to perform small data service or non-IP connection service, for example, the UE needs to send uplink data to the data receiver, the UE may use the new NAS signaling (signal plane data transmission request) and the mobile The mobility management network element performs uplink data transmission, and the mobility management network element sends uplink data to the data receiver.
  • the UE may use the new NAS signaling (signal plane data transmission request) and the mobile
  • the mobility management network element performs uplink data transmission, and the mobility management network element sends uplink data to the data receiver.
  • the transmitter is specifically configured to send a signaling plane data transmission request to the radio access network element when it is determined that data transmission is not required by the user plane bearer, to request the radio access network element to forward the signaling
  • the data transmission request is sent to the mobility management network element, and the signaling plane data transmission request includes: uplink data;
  • the receiver is further configured to receive, by the radio access network element, a second signaling plane data transmission accept message, where the second signaling plane data transmission accept message is received by the radio access network element After the first signaling plane data transmission accept message sent by the mobility management network element is sent, the first signaling plane data transmission accept message includes: security context information.
  • the transmitter is further configured to send a signaling plane data transmission completion message to the mobility management network element, where the signaling plane data transmission completion message includes whether to release the signaling connection indication.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un appareil de transmission de données, qui s'appliquent au domaine technique des communications et qui économisent les ressources d'un réseau. Ledit procédé se déroule de la manière suivante : une entité de gestion de la mobilité obtient un indicateur de mise en place d'une porteuse par défaut pour un équipement utilisateur ; lorsqu'il est déterminé, conformément à l'indicateur de mise en place d'une porteuse par défaut pour l'équipement utilisateur, que la porteuse par défaut n'est pas mise en place, l'entité de gestion de la mobilité transmet à un réseau d'accès sans fil un indicateur de non-mise en place de la porteuse par défaut ; et l'entité de gestion de la mobilité effectue la transmission de données avec l'équipement utilisateur par le biais de la signalisation NAS lorsque la porteuse par défaut n'est pas mise en place.
PCT/CN2013/080194 2013-07-26 2013-07-26 Procédé et appareil de transmission de données WO2015010325A1 (fr)

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CN201380073118.0A CN104995875B (zh) 2013-07-26 2013-07-26 数据传输方法及装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108235387A (zh) * 2016-12-21 2018-06-29 联芯科技有限公司 分组交换链路的配置方法与装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105472748A (zh) * 2015-11-11 2016-04-06 广东欧珀移动通信有限公司 一种移动终端的无线网络资源分配方法及装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008092346A1 (fr) * 2007-01-25 2008-08-07 Huawei Technologies Co., Ltd. Procédé, système et appareil pour l'établissement d'un support de signalisation
CN101431722A (zh) * 2007-11-05 2009-05-13 华为技术有限公司 一种附着时接入数据网的方法、网络设备和接入网
CN102333293A (zh) * 2011-09-21 2012-01-25 电信科学技术研究院 一种小数据的传输方法和设备
CN102340826A (zh) * 2011-11-17 2012-02-01 电信科学技术研究院 一种数据传输的方法和设备
CN103155615A (zh) * 2010-10-15 2013-06-12 瑞典爱立信有限公司 轻量数据传输机制

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101459907B (zh) * 2008-03-26 2010-09-29 中兴通讯股份有限公司 一种指示服务网关承载管理的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008092346A1 (fr) * 2007-01-25 2008-08-07 Huawei Technologies Co., Ltd. Procédé, système et appareil pour l'établissement d'un support de signalisation
CN101431722A (zh) * 2007-11-05 2009-05-13 华为技术有限公司 一种附着时接入数据网的方法、网络设备和接入网
CN103155615A (zh) * 2010-10-15 2013-06-12 瑞典爱立信有限公司 轻量数据传输机制
CN102333293A (zh) * 2011-09-21 2012-01-25 电信科学技术研究院 一种小数据的传输方法和设备
CN102340826A (zh) * 2011-11-17 2012-02-01 电信科学技术研究院 一种数据传输的方法和设备

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108235387A (zh) * 2016-12-21 2018-06-29 联芯科技有限公司 分组交换链路的配置方法与装置
CN108235387B (zh) * 2016-12-21 2021-06-01 联芯科技有限公司 分组交换链路的配置方法与装置

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