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Multi-path PDU session establishment method

A technology of session establishment and session establishment request, which is applied in the field of Internet of Vehicles, can solve the problem that the terminal cannot restore the data connection, etc., and achieve the effect of improving connection stability and reducing impact

Pending Publication Date: 2022-06-03
上海优咔网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to prevent network impact caused by repeated networking of abnormal terminals, mobile communication networks usually adopt certain protective measures, such as setting terminals that frequently register or initiate PDU session establishment requests to a blacklist, and prohibit corresponding operations for a period of time. Retrying the PDU session establishment request will cause the terminal to be unable to restore the data connection function for a long time

Method used

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  • Multi-path PDU session establishment method
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  • Multi-path PDU session establishment method

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] The method for establishing a multi-channel PDU session of the present invention is based on a PDU session manager with a built-in PDU session connection pool, and the PDU session manager introduces a PDU session-level connection timer and a global window period, connection counter and overrun timer, Provide PDU session establishment request service to upper layer applications.

[0024] see Figure 1-5 , the multi-channel PDU session establishment method of the present invention, comprises the following steps:

[0025] 1. PDU session establishment, including:

[0026] Step S1, the PDU session manager receives a PDU session establishment request from an upper layer application;

[0027] Step S2, the PDU session manager checks whether the session exists in the PDU session connection pool according to the DNN name in the PDU session establishment request, if it exist...

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Abstract

The invention discloses a multipath PDU session establishment method, which is based on a PDU session manager with a built-in PDU session connection pool, the PDU session manager introduces a connection timer, a connection counter and an over-limit timer, and the multipath PDU session establishment method comprises the following steps: the PDU session manager establishes a PDU session according to a PDU session establishment request from an upper layer application; checking whether the session exists in the PDU session connection pool or not, and determining whether to return a PDU session establishment response or not according to the counting of the connection timer, the connection counter and the overrun timer; and the PDU session manager firstly starts a connection timer according to a PDU session disconnection request from an upper-layer application, and returns a PDU session disconnection response. According to the invention, the terminal is prevented from frequently releasing data connection, the terminal is prevented from being set as a blacklist, and the influence on the data connection is reduced.

Description

technical field [0001] The invention relates to the field of vehicle networking, in particular to a method for establishing a multi-channel PDU session. Background technique [0002] At present, intelligent networked vehicles usually require multiple mobile data connections to meet different types of vehicle networked needs. Taking 5G connected cars as an example, typical requirements include 4 or more DNNs to meet different PDU session establishment requests. A typical DNN (Data Network Name, data network name) configuration is as follows: 1. IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) DNN, mainly used for VoLTE (voice service over LTE) or VoNR (voice service based on 5G new wireless technology) ) voice call and short message service; 2. DNN1, used for high-security data transmission such as car enterprise data collection and vehicle control; 3. DNN2, used for map navigation and audio-visual entertainment; 4. DNN3, used for WIFI hotspots or edges Calculation an...

Claims

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Application Information

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IPC IPC(8): H04W76/15H04W76/18H04W76/20H04W76/38H04W4/40
CPCH04W76/15H04W76/18H04W76/20H04W76/38H04W4/40
Inventor 李勋宏邱智超
Owner 上海优咔网络科技有限公司