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Method, device and system for negotiating maximum transmission unit value of path

A technology of maximum transmission unit and path, applied in the field of mobile communication, it can solve problems such as difficulty, not considering path MTU, etc., and achieve the effect of improving transmission capacity

Inactive Publication Date: 2009-04-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution will require a large amount of human labor, and since the connection between the service node and the data gateway is a many-to-many relationship, and the service node and the data gateway may not be in the same network (for example, the service node is roaming, The data gateway is at the home location), so manual negotiation is very difficult
In addition, the above solution does not take into account the fact that the MTU of the path from the mobile terminal to multiple different message data networks may be different. Moreover, since a data gateway may be connected to hundreds of message data networks, a service node may also be connected to Hundreds of data gateways, in this case, it is not feasible to use manual negotiation configuration

Method used

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  • Method, device and system for negotiating maximum transmission unit value of path
  • Method, device and system for negotiating maximum transmission unit value of path
  • Method, device and system for negotiating maximum transmission unit value of path

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Figure 4a It is a flow chart of the first method for negotiating the path MTU in Embodiment 1 of the present invention. As shown in Figure 4, the first method for negotiating the path MTU in Embodiment 1 of the present invention includes the following steps:

[0051] Step 401a, the mobile terminal sends a first data connection establishment request message to the service node, requesting establishment of a data channel to a certain packet data network.

[0052] Step 402a: After receiving the first data connection establishment request message, the service node sends a second data connection establishment request message to the data gateway, requesting to establish a data channel to the data gateway, and the second data connection establishment request message carries the service node The suggested path MTU. The suggested path MTU may be determined by considering parameters such as serving node capability, access network capability (including wireless access technolog...

Embodiment 2

[0079] During the data connection establishment process of the GPRS evolved network (SAE network), the first data connection of the mobile terminal will be established together with the attachment process.

[0080] Figure 5 It is a flowchart of a method for negotiating a path MTU in Embodiment 2 of the present invention. like Figure 5 As shown, the method for negotiating the path MTU in Embodiment 2 of the present invention includes the following steps:

[0081] Step 501, the mobile terminal sends an attach request message to the base station (eNodeB). If necessary, the mobile terminal may carry the path MTU suggested by the mobile terminal in the attach request message.

[0082] Step 502, the base station forwards the attachment request message of the mobile terminal to the mobility management entity.

[0083] Step 503, the mobility management entity performs access authentication on the mobile terminal through the service period of the home user.

[0084] Step 504, the...

Embodiment 3

[0097] If the policy control function is deployed in the mobile network, the policy decision function entity can control the policy rules of the data service (such as service quality QoS, charging, etc.).

[0098] Image 6 It is a flowchart of a method for negotiating a path MTU in Embodiment 3 of the present invention. like Image 6 As shown, the method for negotiating the path MTU in Embodiment 3 of the present invention includes the following steps:

[0099] Step 601, the mobile terminal sends a data connection establishment request message to the access gateway (that is, the service node).

[0100] Step 602: After receiving the data connection establishment request message sent by the mobile terminal, the access gateway sends a mobile IP binding request message to the data gateway, requesting to establish a data channel to the data gateway.

[0101] Step 603: After the data gateway receives the mobile IP binding request message, it sends a first policy rule request mess...

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Abstract

An embodiment of the invention discloses a method of consulting path MTU, comprising: consulting according to the received path MTU, selecting the minimal path MTU as the practical path MTU after consulting, transmitting the practical path MTU into a movable terminal. The embodiment of the invention also discloses a device of consulting the path MTU and a system, the device comprising: a receiving module, a consulting module and a transmitting module; the system comprising: a movable terminal, a service node and a data gateway. According to the method, the method and the system, the service node and the data gateway obtain the practical path MTU through consulting and respectively inform the movable terminal and opposite terminal, which use correct path MTU to control the largest length of the transmitted original IP message, causing the original IP message after entering the communication network not to generate bursts, thereby increasing transmission ability of the network.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method, device and system for negotiating the maximum transmission unit value of a path. Background technique [0002] figure 1 It is a schematic diagram of the architecture of the mobile packet network in the prior art, such as figure 1 As shown, the mobile terminal accesses the service node of the mobile core network through the wireless access network (the service node may also be an access gateway), and then connects to the data gateway of the message data network to be accessed through the service node, and finally Connect to the telegram data network that needs to be connected through the data gateway. Wherein, the wireless access network may be: Global System for Mobile Communications (GSM) / Enhanced Data Rates for GSM Evolution (EDGE) Radio Access Network (GERAN), Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN) ), Evolved UM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/18H04W40/04H04W80/06
Inventor 银宇胡颖王珊珊
Owner HUAWEI TECH CO LTD
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