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Method for processing PDP context and mobile communication system

A technology of PDP context and processing method, which is applied in the field of processing, PDP context processing, and mobile communication system, can solve problems such as APN limit value constraint relationship contradictions, and achieve the effect of avoiding conflicts and ensuring security

Active Publication Date: 2009-07-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The problem to be solved by the present invention is: under the premise of ensuring safety, solve the problem of contradiction in the existing APN limit value constraint relationship

Method used

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  • Method for processing PDP context and mobile communication system
  • Method for processing PDP context and mobile communication system
  • Method for processing PDP context and mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a PDP context processing method, the flow chart of which is as follows Figure 2A As shown, its signaling diagram is shown in Figure 2B shown, including:

[0040] Step 101, when the mobile terminal wants to activate the PDP context, it sends a PDP context activation request carrying the APN of the PDP to be activated to the SGSN. Wherein, before the mobile terminal requests to activate the PDP context, one or more other PDP contexts may have been activated.

[0041] Step 102, the SGSN compares the APN limit value of the activated PDP of the mobile terminal to obtain the maximum APN limit value, and when receiving the PDP context activation request from the mobile terminal, compares the maximum APN limit value with the PDP to be activated The APN carried in the PDP context creation request is sent to the GGSN.

[0042] Step 103, the GGSN searches for the APN limit value of the APN according to the APN of the PDP to be activated carried in the...

Embodiment 2

[0057] This embodiment provides a PDP context processing method, the flow chart of which is as follows Figure 3A As shown, its signaling diagram is shown in Figure 3B shown, including:

[0058] Step 201, when the mobile terminal wants to activate a PDP context, send a PDP context activation request carrying the APN of the PDP to be activated to the SGSN. Wherein, before the mobile terminal requests to activate the PDP context, one or more other PDP contexts may have been activated.

[0059] It should be noted here that, in this embodiment, the APN restriction value of the activated PDP of the mobile terminal and the APN restriction value of the PDP to be activated may be configured by different GGSNs. This is because: the SGSN obtains the GGSN address through APN domain name system (Domain Name System, hereinafter referred to as: DNS) domain name resolution, and different DNS domain names may correspond to different GGSNs.

[0060] Step 202, the SGSN compares the APN limi...

Embodiment 3

[0068] This embodiment provides another PDP context processing method, the flow chart of which is as follows Figure 4A As shown, its signaling diagram is shown in Figure 4B shown, including:

[0069] Step 301 , when the GGSN updates the APN restriction value of the APN, it sends a PDP context update message carrying the updated APN restriction value to the SGSN that has activated the PDP context with the above-mentioned APN.

[0070] Wherein, the update of the APN limit value by the GGSN may include an update initiated by the GGSN or an update requested by the SGSN to the GGSN. For example, assume that the mobile terminal has activated two PDP contexts, namely PDP1 and PDP2, and their APN restriction values ​​are APN1=1 and APN2=3 respectively. If the GGSN modifies APN2 to 0 at this time, it sends a PDP context update message to the mobile terminal, requesting to revise APN2 to 0.

[0071] Step 302: After receiving the PDP context update message, the SGSN updates the APN ...

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Abstract

The invention relates to a method for processing PDP (Packet Data Protocol) context and a mobile communication system, wherein, the method comprises the following steps: sending a PDP context creating request with a maximum APN (Access Point Name) limiting value and an APN of a PDP to be activated after receiving a PDP context activating request; deactivating the context of a limit PDP or that of a non-limit PDP according to a preset selective strategy so as to enable the contexts of the limit PDP and the non-limit PDP are not in activated state at the same time after receiving a creating acknowledgement of the PDP context. The system comprises an SGSN and a GGSN. As the context of a limit PDP and the context of a non-limit PDP cannot be activated at the same time, the invention has the advantage that the conflict between the APN limit value of the activated PDP and the constraint relation of the APN limit value is avoided; moreover, as a data service with a security requirement and a data service without a security requirement cannot be activated at the same mobile terminal at the same time, therefore, the invention further has the advantage that the security of the access of a data service is ensured.

Description

technical field [0001] The invention relates to a (Packet Data Protocol Context, hereinafter referred to as: PDP context) processing technology, in particular to a processing method and a mobile communication system of a PDP context when data services are created, and belongs to the field of data communication. Background technique [0002] The session management of the existing data service is used to implement processes such as activation, deactivation, and modification of the PDP context of the packet data protocol. Such as figure 1 As shown, the PDP context is stored in the GPRS Serving Support Node (hereinafter referred to as: SGSN), the gateway GPRS support node (Gateway GPRSSupport Node, hereinafter referred to as: GGSN) and the mobile terminal. Wherein, the mobile terminal can be divided into user equipment (hereinafter referred to as UE) and mobile station (Mobile Station, hereinafter referred to as MS) according to different network structures. When the PDP conte...

Claims

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Application Information

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IPC IPC(8): H04W8/24H04W48/02
Inventor 陈靖袁潮灏
Owner HUAWEI TECH CO LTD
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