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A method and device for establishing and releasing a local area network tunnel

A tunnel establishment and local area network technology, applied in the field of local area network tunnel establishment and release, to improve the efficiency of network operation and maintenance and improve the management process.

Active Publication Date: 2022-04-15
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The embodiment of the present invention provides a method and device for establishing and releasing a local area network tunnel, which solves the management problem of the 5G local area network tunnel, and realizes the establishment and deletion of the N19 tunnel through signaling, without maintenance by operation and maintenance personnel through manual configuration N19 tunnel greatly improves the efficiency of network operation and maintenance

Method used

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  • A method and device for establishing and releasing a local area network tunnel
  • A method and device for establishing and releasing a local area network tunnel
  • A method and device for establishing and releasing a local area network tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0182] Embodiment 1: In the scenario of local offloading of non-roaming / roaming traffic, the N19 tunnel establishment process is triggered when the UE requests to establish a PDU Session establishment

[0183] see Figure 6 , the specific process is as follows:

[0184] Step 1: UE sends a PDU session establishment request to AMF.

[0185] Exemplarily, the PDU session establishment request includes 5GLAN group ID or DNN, and DNN or group ID may be used to represent a group.

[0186] If the UE does not have a 5GLAN group ID, the AMF can obtain group information from UDM / PCF / Network Element Function (NetworkElement Function, NEF) / User Data Repository (UDR).

[0187] Step 2: AMF selects SMF according to 5GLAN group ID or DNN.

[0188] Step 3: AMF requests SMF to establish PDU Session SM context information by calling Nsmf_PDUSession_CreateSMContext Request.

[0189] Step 4: SMF fetches UE subscription data from UDM.

[0190] Step 5: SMF sends Nsmf_PDUSession_CreateSMContext r...

Embodiment 2

[0202] Embodiment 2: In the scenario of local offloading of non-roaming / roaming traffic, an N19 tunnel establishment process is triggered when user plane data is transmitted for the first time.

[0203] see Figure 7 , the specific process is as follows:

[0204] Step 1: The UE communicates within the group and sends uplink data.

[0205] Step 2: After the UPF receives the data transmission request, it triggers the data transmission notification subscribed by the SMF.

[0206] Step 3: SMF queries the UPF status of the 5GLAN group. If the UPF1 is a new UPF in the 5GLAN group, it initiates the establishment process of the N19 tunnel between the new UPF and the existing UPF under the group, and the SMF sends a message to UPF1 through N4. N19 tunnel establishment request. Assign and carry N19 GTP-U Tunnel ID.

[0207] Step 4: UPF1 sends an N19 tunnel establishment request response to the SMF.

[0208] Step 5: SMF sends N19 tunnel establishment request to UPF2 through N4. Carry...

Embodiment 3

[0210] Embodiment 3: The N19 tunnel establishment process is triggered when the terminal requests to establish a PDU Session in the scenario of roaming back to the local area.

[0211] see Figure 8 , the specific process is as follows:

[0212] Step 1: UE sends a PDU session establishment request to AMF.

[0213] Exemplarily, the PDU session establishment request includes a 5GLAN group ID.

[0214] Step 2: AMF selects V-SMF according to 5GLAN group ID.

[0215] Step 3: AMF requests V-SMF to establish PDU Session SM context information by calling Nsmf_PDUSession_CreateSMContext Request.

[0216] Step 4: V-SMF sends Nsmf_PDUSession_CreateSMContext response to AMF.

[0217] Step 5: The V-SMF selects a V-UPF for the UE according to the policy in the PCF.

[0218] Step 6: The V-SMF establishes an N4 tunnel with the selected V-UPF. The V-UPF sends an N4 tunnel establishment success response.

[0219] Step 7: V-SMF requests H-SMF to establish PDU Session SM context informatio...

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Abstract

Embodiments of the present invention provide a method and device for establishing and releasing a local area network tunnel. The method for establishing a local area network tunnel includes: sending establishment requests to the first UPF and the second UPF respectively, for establishing the first UPF and the second UPF A local area network tunnel between them; respectively receiving establishment responses from the first UPF and the second UPF; wherein, the first UPF and the second UPF belong to the same local area network group. In the embodiment of the present invention, the establishment and release of local area network tunnels between different UPFs in the 5G local area network are realized, and the management process of the 5G local area network tunnels is improved.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a method and device for establishing and releasing a local area network tunnel. Background technique [0002] In the architecture of the fifth-generation mobile communication technology (fifth-generation, 5G) network, several relatively independent services that can be flexibly invoked form a network function, and these functions provide services for any permitted network function through a unified interface. [0003] Session Management Function (SMF), responsible for 5G user session life cycle management, Internet Protocol (Internet Protocol, IP) address allocation, data routing, business continuity management, policy rule matching, and traffic billing processing, etc. Features; [0004] User plane function (UPF), responsible for the routing and forwarding of user data packets, service identification and policy enforcement; [0005] Unifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W84/12
CPCH04W36/0033H04W36/0055H04W84/12H04W76/12
Inventor 刘超刘棠青王丹
Owner CHINA MOBILE COMM LTD RES INST
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