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Method for solving problem that PDN gateway can not be anchored by LTE multi-mode terminal, SGSN, and system

A multi-mode terminal and terminal technology, which is applied in wireless communication, network data management, electrical components, etc., can solve the problem that LTE multi-mode terminals cannot be anchored to the PDN gateway, etc., and achieve the effect of small impact and easy implementation.

Active Publication Date: 2016-04-06
CHINA MOBILE GROUP JIANGSU
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing technical problems, the embodiment of the present invention provides a method, SGSN and system for solving the problem that LTE multi-mode terminals cannot be anchored to the PDN gateway

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  • Method for solving problem that PDN gateway can not be anchored by LTE multi-mode terminal, SGSN, and system
  • Method for solving problem that PDN gateway can not be anchored by LTE multi-mode terminal, SGSN, and system
  • Method for solving problem that PDN gateway can not be anchored by LTE multi-mode terminal, SGSN, and system

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Embodiment Construction

[0031] After analysis, it is found that the characteristics of LTE multimode terminals that cannot be anchored to the PDN gateway due to false reporting of EPC capabilities are: if a commercial LTE multimode terminal has this problem, then all other LTE multimode terminals with the same model and the same software version number terminal, both have the same problem. therefore,

[0032] In the embodiment of the present invention, when the SGSN determines that the EPC capability field reported by the terminal is not 1, it obtains the IMEISV of the terminal, and analyzes the characteristic information of the terminal according to the IMEISV; checks whether there is an EPC in the preset database according to the terminal problem type. If the characteristic information of the terminal obtained from the analysis is yes, then the EPC capability field of the terminal is set to 1. In this way, the terminal will be successfully anchored to the PDN gateway.

[0033] Wherein, the termin...

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Abstract

The present invention discloses a method for solving a problem that a PDN gateway can not be anchored by an LTE multi-mode terminal. The method comprises the steps that: when an SGSN determines that the EPC capability field reported by a terminal is not 1, the IMEISV of the terminal is obtained, and the characteristic information of the terminal is analyzed according to the IMEISV; the SGSN inquires whether the characteristic information of the terminal obtained through analyzing exists in a preset database or not according to a terminal problem type, if so, the EPC capability field of the terminal is set as 1. The invention also discloses the SGSN and a system for realizing the method.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for solving the problem that a long-term evolution (LTE) multimode terminal cannot anchor a packet data network (PDN) gateway, a GPRS service support node (SGSN) and a system. Background technique [0002] At present, in order to solve the problem that LTE multi-mode terminals cannot smoothly move to the LTE network, the LTE / Evolved Packet Core Network (EPC) communicates with the 2G / 3GPS domain core network through the Gn / Gp interface. In addition, by upgrading the SGSN in the 2G / 3G existing network, the SGSN can support EPC-related capabilities, for example: it can support the EPCCapability field in the terminal network capability (MSNetworkCapability) reported by the terminal, and according to the EPCcapability field will The request of the terminal is routed to the PDN gateway (P-GW) and so on. In this way, the SGSN can select a P-GW according to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/24H04W88/06
Inventor 顾燕娟
Owner CHINA MOBILE GROUP JIANGSU