A kind of method, device and computer storage medium for obtaining IP address

An IP address and mobility technology, applied in the field of communication, can solve problems such as terminal registration failure and inability to obtain network types, and achieve the effects of preventing short-term network disconnection, improving DNS query efficiency, and avoiding secondary queries

Active Publication Date: 2021-05-25
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, not all mobility management network elements can obtain the network type of the network last accessed by the terminal through LAI, MMEGI or GUTI, so some target mobility management network elements cannot obtain the network of the network previously accessed by the terminal type, which makes the terminal fail to register on the network to which the target mobility management network element belongs

Method used

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  • A kind of method, device and computer storage medium for obtaining IP address
  • A kind of method, device and computer storage medium for obtaining IP address
  • A kind of method, device and computer storage medium for obtaining IP address

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] In this embodiment, the terminal moves from the management range of the first mobility management network element to the management range of the second mobility management network element, and the second mobility management network element is a mobility management network element in the 3G network. like image 3 As shown, the above methods may include:

[0064] If the terminal performs network attachment, step 301 is performed, and if the terminal performs RAU, step 302 is performed.

[0065] 301. The second SGSN determines whether the terminal carries the IMSI of the terminal.

[0066] Wherein, the second SGSN is the second mobility management network element.

[0067] If not, go to step 302; if yes, go to step 303.

[0068] 302. The second SGSN judges whether a packet temporary mobile subscriber identity (packet temperate mobile subscriber identity, P-TMSI for short) is allocated by the local office.

[0069] If yes, go to step 303; if not, go to step 304.

[007...

Embodiment 2

[0089] In this embodiment, the terminal moves from the management range of the first mobility management network element to the management range of the second mobility management network element, and the second mobility management network element is a mobility management network element in the 4G network. like Figure 4 As shown, the above methods may include:

[0090] If the terminal performs network attachment, step 401 is performed, and if the terminal performs TAU, step 402 is performed.

[0091] 401. The second MME judges whether the terminal carries the IMSI of the terminal.

[0092] Wherein, the second MME is the second mobility management network element.

[0093] If not, go to step 402 ; if yes, go to step 403 .

[0094] 402. The MME judges whether the GUTI is allocated by the local office.

[0095] If yes, go to step 403 , if not, go to step 404 .

[0096] 403. The second MME acquires user information.

[0097] The user information may be data such as IMSI, GUT...

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Abstract

The present application discloses a method, device and computer storage medium for obtaining an IP address, which relate to the field of communication technology and are used to enable a target mobility management network element to successfully obtain the network type of a network that a terminal accessed last time. The method includes: the terminal acquires the network type of the first network, and the first network is a network accessed by the terminal; if the terminal moves from the management range of the first mobility management network element to the management range of the second mobility management network element, The terminal sends the network type of the first network to the second mobility management network element, which is used for the second mobility management network element to obtain the IP address of the first mobility management network element, and the first mobility management network element is an IP address of the first network. mobility management network element.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method, device and computer storage medium for obtaining an Internet Protocol (internet protocol, IP) address. Background technique [0002] During the movement of the terminal, the process of switching the serving mobility management network element of the terminal is involved. If the mobility management network element that serves the terminal before the handover is decided is called a source mobility management network element, the mobility management network element that decides to handover is called a target mobility management network element. During the handover process, in order to perform network registration on the network to which the target mobility management network element belongs, the terminal needs to obtain the international mobile subscriber identification number (IMSI for short) of the terminal from the source mobility management netwo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/26H04W60/00H04L29/12
CPCH04W8/26H04W60/00H04L61/4511
Inventor 陈璇童磊赵雨田葛瑾
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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