CN110121215B - Data connection establishment method and device of 5G terminal and 5G terminal - Google Patents
Data connection establishment method and device of 5G terminal and 5G terminal Download PDFInfo
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- CN110121215B CN110121215B CN201810122933.6A CN201810122933A CN110121215B CN 110121215 B CN110121215 B CN 110121215B CN 201810122933 A CN201810122933 A CN 201810122933A CN 110121215 B CN110121215 B CN 110121215B
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Abstract
The invention provides a method and a device for establishing data connection of a 5G terminal and the 5G terminal. The method comprises the following steps: receiving a Notification message sent by a 5G core network through a non-3GPP access network, wherein the Notification message carries a PDU Session ID; judging whether the 5G terminal can successfully establish wireless connection with a 3GPP 5G access network or not; and when judging that the 5G terminal can not successfully establish wireless connection with the 3GPP 5G access network, sending a Service Request message to the network through the wireless connection with the non-3GPP access network, wherein the Service Request message carries the PDU Session ID so as to trigger the non-3GPP access network, the 5G core network and the 5G terminal to establish the data bearer of the PDU Session. The invention can establish data connection under the scene that the terminal can not send Service Request message through the 3GPP 5G access network, and ensure the normal operation of data Service.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a method and a device for establishing data connection of a 5G terminal and the 5G terminal.
Background
The terminal registers to the same operator network through a 3GPP (3rd Generation Partnership Project) 5G access network and a non-3GPP (non-3GPP) access network at the same time, and when the connection status of the non-3GPP access type is CM-CONNECTED, the connection status of the 3GPP access type is CM-IDLE. The network has Data to send to the terminal, and the Data belongs to a PDU (Protocol Data Unit) Session (Session) established through the 3GPP 5G access network, the 5G core network will send a notification message to the terminal through the non-3GPP access network, carrying a PDU Session ID, the terminal will send a Service Request message through the 3GPP 5G access network after receiving the notification message, carrying the PDU Session ID, to trigger the network and the terminal to establish the Data bearer to transmit the Data. However, due to various reasons, such as cell access failure, the terminal cannot send the Service Request message through the 3GPP 5G access network, and thus the data connection fails, and the data Service cannot be performed normally.
At present, one solution to the above problem is: the 5G core network will send a notification message to the terminal through the non-3GPP access network and then start a notification timer. And after receiving the notification message, the terminal sends a Service Request message through the 3GPP 5G access network. If the notification timer is overtime and the 5G core network does not receive the Service Request message of the terminal, the 5G core network sends a paging message through the 3GPP 5G access network, or considers that the Service establishment fails.
In the process of implementing the invention, the inventor finds that at least the following technical problems exist in the prior art:
the terminal must send the Service Request message through the 3GPP 5G access network, but due to the network environment, such as cell access failure, the Service Request message cannot be sent through the 3GPP 5G access network, and the Service establishment will fail.
Disclosure of Invention
The 5G terminal and the data connection establishing method and device for the same provided by the invention can establish data connection under the scene that the terminal cannot send Service Request messages through a 3GPP 5G access network, thereby ensuring normal operation of data services.
In a first aspect, the present invention provides a method for establishing a data connection of a 5G terminal, where the method is applied to the 5G terminal, and the method includes:
receiving a Notification message sent by a 5G core network through a non-3GPP access network, wherein the Notification message carries a PDU Session ID;
judging whether the 5G terminal can successfully establish wireless connection with a 3GPP 5G access network or not;
and when judging that the 5G terminal can not successfully establish wireless connection with the 3GPP 5G access network, sending a Service Request message to the network through the wireless connection with the non-3GPP access network, wherein the Service Request message carries the PDU Session ID so as to trigger the non-3GPP access network, the 5G core network and the 5G terminal to establish the data bearer of the PDU Session.
Optionally, the Allowed PDU Sessions status information element in the Service Request message includes the PDU Session ID.
Optionally, the method further comprises:
and when judging that the 5G terminal can successfully establish wireless connection with the 3GPP 5G access network, sending a Service Request message to the network through the 3GPP 5G access network, wherein the Service Request message carries the PDU Session ID so as to trigger the network and the 5G terminal to establish the data bearer of the PDU Session.
In a second aspect, the present invention provides an apparatus for establishing a data connection of a 5G terminal, where the apparatus is located in the 5G terminal, and the apparatus includes:
a receiving unit, configured to receive a Notification message sent by a 5G core network through a non-3GPP access network, where the Notification message carries a PDU Session ID;
the judging unit is used for judging whether the 5G terminal can successfully establish wireless connection with the 3GPP 5G access network;
and the first sending unit is used for sending a Service Request message to the network through the wireless connection with the non-3GPP access network when the judging unit judges that the 5G terminal cannot successfully establish the wireless connection with the 3GPP 5G access network, wherein the Service Request message carries the PDU Session ID so as to trigger the non-3GPP access network, the 5G core network and the 5G terminal to establish the data bearer of the PDU Session.
Optionally, the Allowed PDU Sessions status information element in the Service Request message includes the PDU Session ID.
Optionally, the apparatus further comprises:
and the second sending unit is used for sending a Service Request message to the network through the 3GPP 5G access network when the judging unit judges that the 5G terminal can successfully establish the wireless connection with the 3GPP 5G access network, wherein the Service Request message carries the PDU Session ID so as to trigger the network and the 5G terminal to establish the data bearer of the PDU Session.
In a third aspect, the present invention provides a user equipment, where the user equipment includes the data connection establishment apparatus of the above 5G terminal.
The 5G terminal and the method and device for establishing data connection of the 5G terminal provided by the embodiment of the invention receive a Notification message sent by a 5G core network through a non-3GPP access network, wherein the Notification message carries a PDU Session ID, and when the 5G terminal is judged not to be capable of successfully establishing wireless connection with a 3GPP 5G access network, a Service Request message is sent to the network through the wireless connection with the non-3GPP access network, wherein the Service Request message carries the PDU Session ID to trigger the non-3GPP access network and the 5G core network to establish data bearer of the PDU Session with the 5G terminal, so that data connection can be established under the scene that the terminal is incapable of sending the Service Request message through the 3GPP 5G access network, and normal operation of data Service is ensured.
Drawings
Fig. 1 is a flowchart of a data connection establishment method of a 5G terminal according to an embodiment of the present invention;
fig. 2 is a flowchart of a data connection establishing method of a 5G terminal according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a data connection establishing apparatus of a 5G terminal according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a data connection establishing apparatus of a terminal 5G according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a method for establishing a data connection of a 5G terminal, where the method is applied to the 5G terminal, and as shown in fig. 1, the method includes:
and S11, receiving a Notification message sent by the 5G core network through the non-3GPP access network, wherein the Notification message carries the PDU Session ID.
S12, judging whether the 5G terminal can successfully establish wireless connection with the 3GPP 5G access network.
S13, when judging that the 5G terminal can not successfully establish the wireless connection with the 3GPP 5G access network, sending a Service Request message to the network through the wireless connection with the non-3GPP access network, wherein the Service Request message carries the PDU Session ID to trigger the non-3GPP access network, the 5G core network and the 5G terminal to establish the data bearer of the PDU Session.
The data connection establishing method of the 5G terminal provided by the embodiment of the invention receives a Notification message sent by a 5G core network through a non-3GPP access network, wherein the Notification message carries a PDU Session ID, and when the 5G terminal is judged not to be able to successfully establish a wireless connection with the 3GPP 5G access network, the Service Request message is sent to the network through the wireless connection with the non-3GPP access network, wherein the Service Request message carries the PDU Session ID to trigger the non-3GPP access network, the 5G core network and the 5G terminal to establish a data bearer of the PDU Session, so that the data connection can be established under the scene that the terminal is not able to send the Service Request message through the 3GPP 5G access network, and the normal operation of a data Service is ensured.
An embodiment of the present invention further provides a method for establishing a data connection of a 5G terminal, where the method is applied to the 5G terminal, and as shown in fig. 2, the method includes:
and S21, the 5G core network sends a Notification message to the 5G terminal through the non-3GPP access network, wherein the Notification message carries the PDU Session ID.
The connection state of the non-3GPP access network is CM-CONNECTED, and the connection state of the 3GPP 5G access network is CM-IDLE. The core network has PDU Session data of 3GPP 5G access network to be sent to the 5G terminal.
S22, after the 5G terminal receives the Notification message sent by the 5G core network through the non-3GPP access network, judging whether the 5G terminal can successfully establish wireless connection with the 3GPP 5G access network, if so, executing the steps S23-S24; if not, steps S25-S26 are performed.
And the S23 and the 5G terminal send a Service Request message through the 3GPP 5G access network, wherein the Service Request message carries the PDU Session ID.
S24, triggering the network and the 5G terminal to establish a data radio bearer to transmit data.
And the S25 and 5G terminals send a Service Request message to the network through the wireless connection with the non-3GPP access network, wherein the Allowed PDU Sessions status cell in the Service Request contains the PDU Session ID.
And S26, triggering the non-3GPP access network and the 5G core network to establish the data connection of the PDU Session with the 5G terminal.
An embodiment of the present invention further provides a device for establishing a data connection of a 5G terminal, where the device is located at the 5G terminal, and as shown in fig. 3, the device includes:
a receiving unit 11, configured to receive a Notification message sent by a 5G core network through a non-3GPP access network, where the Notification message carries a PDU Session ID;
a judging unit 12, configured to judge whether the 5G terminal can successfully establish a wireless connection with a 3GPP 5G access network;
a first sending unit 13, configured to send a Service Request message to a network through a wireless connection with a non-3GPP access network when the determining unit 12 determines that the 5G terminal cannot successfully establish a wireless connection with the 3GPP 5G access network, where the Service Request message carries the PDU Session ID, so as to trigger the non-3GPP access network, the 5G core network, and the 5G terminal to establish a data bearer of the PDU Session.
The data connection establishing device of the 5G terminal provided by the embodiment of the invention receives a Notification message sent by a 5G core network through a non-3GPP access network, wherein the Notification message carries a PDU Session ID, and when the 5G terminal is judged not to be able to successfully establish a wireless connection with the 3GPP 5G access network, the Service Request message is sent to the network through the wireless connection with the non-3GPP access network, wherein the Service Request message carries the PDU Session ID to trigger the non-3GPP access network, the 5G core network and the 5G terminal to establish a data bearer of the PDU Session, so that the data connection can be established under the scene that the terminal is not able to send the Service Request message through the 3GPP 5G access network, and the normal operation of a data Service is ensured.
Optionally, the Allowed PDU Sessions status information element in the Service Request message includes the PDU Session ID.
Further, as shown in fig. 4, the apparatus further includes:
a second sending unit 14, configured to send a Service Request message to the network through the 3GPP 5G access network when the determining unit 12 determines that the 5G terminal can successfully establish a wireless connection with the 3GPP 5G access network, where the Service Request message carries the PDU Session ID, so as to trigger the network and the 5G terminal to establish a data bearer of the PDU Session.
The embodiment of the invention also provides a 5G terminal, and the user equipment comprises the data connection establishing device of the 5G terminal.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A data connection establishing method of a 5G terminal is applied to the 5G terminal, and is characterized by comprising the following steps:
receiving a Notification message sent by a 5G core network through a non-3GPP access network, wherein the Notification message carries a PDU Session ID;
judging whether the 5G terminal can successfully establish wireless connection with a 3GPP 5G access network or not;
when the 5G terminal is judged to be incapable of successfully establishing wireless connection with the 3GPP 5G access network, sending a Service Request message to a network through wireless connection with the non-3GPP access network, wherein the Service Request message carries the PDU Session ID so as to trigger the non-3GPP access network, the 5G core network and the 5G terminal to establish data bearer of the PDU Session;
and when judging that the 5G terminal can successfully establish wireless connection with the 3GPP 5G access network, sending a Service Request message to the network through the 3GPP 5G access network, wherein the Service Request message carries the PDU Session ID so as to trigger the network and the 5G terminal to establish the data bearer of the PDU Session.
2. The method of claim 1, wherein an Allowed PDU Sessions status cell in the Service Request message includes the PDU Session ID.
3. A data connection establishing apparatus of a 5G terminal, the apparatus being located in the 5G terminal, the apparatus comprising:
a receiving unit, configured to receive a Notification message sent by a 5G core network through a non-3GPP access network, where the Notification message carries a PDU Session ID;
the judging unit is used for judging whether the 5G terminal can successfully establish wireless connection with the 3GPP 5G access network;
a first sending unit, configured to send a Service Request message to a network through a wireless connection with a non-3GPP access network when the determining unit determines that the 5G terminal cannot successfully establish a wireless connection with the 3GPP 5G access network, where the Service Request message carries the PDU Session ID to trigger the non-3GPP access network, the 5G core network, and the 5G terminal to establish a data bearer of the PDU Session;
and the second sending unit is used for sending a Service Request message to the network through the 3GPP 5G access network when the judging unit judges that the 5G terminal can successfully establish the wireless connection with the 3GPP 5G access network, wherein the Service Request message carries the PDU Session ID so as to trigger the network and the 5G terminal to establish the data bearer of the PDU Session.
4. The apparatus of claim 3, wherein an Allowed PDU Sessions status cell in the Service Request message includes the PDU Session ID.
5. A5G terminal, characterized in that the 5G terminal comprises data connection establishing means of the 5G terminal according to any of claims 3 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810122933.6A CN110121215B (en) | 2018-02-07 | 2018-02-07 | Data connection establishment method and device of 5G terminal and 5G terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810122933.6A CN110121215B (en) | 2018-02-07 | 2018-02-07 | Data connection establishment method and device of 5G terminal and 5G terminal |
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| CN110121215A CN110121215A (en) | 2019-08-13 |
| CN110121215B true CN110121215B (en) | 2021-10-26 |
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| US20230217508A1 (en) * | 2022-01-03 | 2023-07-06 | Mediatek Inc. | Method for adding 3gpp pdn leg to an ma pdu session with non-3gpp leg |
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| CN101720115A (en) * | 2009-03-02 | 2010-06-02 | 中兴通讯股份有限公司 | Method and system for reestablishing connection of packet data network |
| CN107113287A (en) * | 2014-10-30 | 2017-08-29 | 三星电子株式会社 | The method that device-to-device communication is performed between subscriber's installation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016175497A1 (en) * | 2015-04-27 | 2016-11-03 | Lg Electronics Inc. | Method for performing autonomous rlc retransmission in a wireless communication system and a device therefor |
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| CN101720115A (en) * | 2009-03-02 | 2010-06-02 | 中兴通讯股份有限公司 | Method and system for reestablishing connection of packet data network |
| CN107113287A (en) * | 2014-10-30 | 2017-08-29 | 三星电子株式会社 | The method that device-to-device communication is performed between subscriber's installation |
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