KR100891052B1 - Data call processing system and method in mobile communication network - Google Patents

Abstract

A data call processing system in a mobile communication network according to the present invention is provided with a SGSN for transmitting a data call message whose destination address is a GGSN corresponding to the APN information provided from a terminal, and is installed in the GGSN and based on the data call message of the SGSN. And a plurality of GCPs for allocating IPs to terminals, and a connection between SGSNs and GGSNs, and a traffic measurement module for measuring traffic volume for each GCP, measured by a traffic measurement module as data call messages are received from SGSNs. And a Gn interface for selecting any one of the plurality of GCPs based on the amount of traffic for each GCP and providing a data call message to the selected GCP.

As described above, the present invention generates a data call message including the identification information of the GCP to assign IP to the terminal regardless of the APN information received by the SGSN and transmits the data call message to the GGSN, thereby selecting the GCP regardless of the APN connected to the terminal. As a result, APN resources can be efficiently managed.

Mobile communication, GGSN, APN, SGSN, GCP

Description

SYSTEM AND METHOD FOR PROCESSING A DATA CALL IN A WIRELESS COMMUNICATION NETWORK}

1 is a block diagram showing a conventional GGSN and its surrounding configuration,

2 is a block diagram illustrating a data call processing system in a mobile communication network according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating setting information set in GCP1 and 2 of FIG. 2.

4 is a flowchart illustrating a data call processing process in a WCDMA network according to an embodiment of the present invention.

5 is a flowchart illustrating a data call processing process in a WCDMA network according to another embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

200: terminal 202: node B

204: RNC 210: SGSN

220: GGSN 230: Gn interface unit

232: traffic measurement module 234: conversion module

236: diagnostic module 240/1, 240/2: GCP1, 2

The present invention relates to data call processing in a mobile communication network, and more particularly, to a data call processing system and method in a mobile communication network capable of efficiently managing traffic in a mobile communication network.

In general, an asynchronous mobile communication system such as 3G 3rd Generation Universal Mobile Telecommunication System (UMTS) is a third generation mobile communication system evolved from the European standard, Global System for Mobile Communication (GSM). Based on the core, WCDMA (Wideband Code Division Multiple Access) technology is applied to Radio Access Network (RAN) to provide various services.

So GGSN is used to construct this asynchronous mobile communication system. That is, as an implementation of the third generation mobile communication system, the WCDMA network structure includes GGSN as one of network elements.

FIG. 1 is a block diagram illustrating a conventional GGSN and its peripheral configuration, and includes a Serving General Packet Radio Services Support Node (SGSN) 10, a GGSN 20, and a Packet Data Network (PDN) 30. 20 includes a gateway control processor (GCP) # 0 (22) and a GCP # 1 (24). Here, the SGSN 10 and the GGSN 20 are connected by an interface called Gn, and the GGSN 20 and the PDN 30 are connected by an interface named Gi.

The SGSN 10 tracks the location of a General Packet Radio Services (GPRS) terminal and performs authentication and access control of the GPRS terminal. If a location area (LA) is used as a unit for managing the location of a terminal in GSM, GPRS uses a unit called a routing area (RA).

In addition, SGSN 10 may be connected to the HLR (Hole Location Register) of the GSN to perform authentication for the terminal, and after performing the authentication, the GGSN 20 corresponding to the APN (Access Point Name) information provided from the terminal. A data call message, for example, an IP allocation request message, is generated at the destination address and transmitted to the GGSN 20.

The GGSN 20 determines which SGSN 10 to transmit when data arrives from the PDN 30, and actually transmits to the SGSN 10 using the GPRS Tunneling Protocol (GTP). The GGSN 20 is basically an IP router that performs a routing function, and drops IP to the terminal according to the reception of a data call message.

GCP # 0 (22) and GCP # 1 (24) of the GGSN 20 store different access call management information and APN information, and store the IP pool (stored according to the data call message of the terminal through the SGSN 10). Pool) information is used to download the IP to the terminal.

If the GCP # 0, # 1 (22, 24) of the GGSN (20) describes the process of assigning IP to the terminal as follows.

When the UE requests a data call using APN_1, SGSN 10 generates a data call message using APN_1 and transmits it to GGSN 20. Accordingly, GGSN 20 transmits GCP # 0 (with APN information of APN_1). 22) provides a data call message, and GCP # 0 (22) drops an IP to the terminal based on its own IP pool information as the data call message is received.

On the other hand, when the UE requests a data call using APN_2, SGSN 10 generates a data call message using APN_2 and transmits it to GGSN 20. Accordingly, GGSN 20 transmits GCP # having APN information of APN_2. The data call message is provided to the 1 (24), and the GCP # 1 (24) drops the IP to the terminal based on the IP pool information it has as the data call message is received.

As described above, in the conventional IP allocation method, since the IP is allocated to the terminal using only the GCP having the APN based on the APN requested by the terminal, traffic is weighted to either GCP.

An object of the present invention is to solve the problems of the prior art, by generating a data call message containing the identification information of the GCP to assign IP to the terminal irrespective of the APN information received in the SGSN, by transmitting to the GGSN, The present invention provides a data call processing system and method in a mobile communication network capable of selecting a GCP regardless of an APN to which a terminal is connected.

Another object of the present invention is to select a GCP to process a data call as a data call is received through the APN, and then process the data call using the selected GCP, thereby efficiently managing APN resources as well as traffic per GCP. The present invention provides a data call processing system and method in a mobile communication network that can be distributed.

In order to achieve the above object, the present invention, SGSN for transmitting a data call message with a destination address of the GGSN corresponding to the APN information provided from the terminal, and installed in the GGSN, based on the data call message of the SGSN And a plurality of GCPs for allocating IPs to the terminal, the SGSN and a GGSN, and a traffic measurement module for measuring the traffic volume for each of the plurality of GCPs, as the data call message is received from the SGSN. And a Gn interface for selecting any one of the plurality of GCPs and providing the data call message to the selected GCP based on the traffic amount for each GCP measured by the traffic measurement module.

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According to another aspect of the present invention, there is provided a data call request using an arbitrary APN information of a terminal from a terminal, and a GGSN corresponding to the APN information. Generating a data call message addressed to the GGSN and selecting one of the plurality of GCPs based on the traffic volume of GCPs in the GGSN receiving the data call message from the SGSN; And transmitting the received data call message to the selected GCP, and assigning an IP to the terminal in the GCP receiving the data call message.

Hereinafter, a data call processing process in a WCDMA network according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating a data call processing system in a mobile communication network according to an exemplary embodiment of the present invention.

2, a data call processing system according to a preferred embodiment of the present invention includes a terminal 200, a node B 202, a radio network controller (RNC) 204, an SGSN 210, and a GGSN 220. The GGSN 220 includes a Gn interface 230 and GCP1 and 2 (240/1, 240/2).

In the present invention, the Gn interface unit 230 includes a traffic measurement module 232, a conversion module 234, and a diagnostic module 236.

The terminal 200 receives various mobile communication services such as call service, wireless internet service, and message service through a mobile communication network such as a WCDMA network, and in particular, the node B 202 and After performing an authentication process by accessing the SGSN 210 through the RNC 204, it provides its APN information to the SGSN 210 when a data call service request is made.

Here, the APN information is a reference domain name that connects the subscriber terminal 200 to the GGSN 220 which allocates an IP address for data service.

The SGSN 210 performs location tracking of the GPRS terminal 200, authentication and access control of the GPRS terminal 200, and in particular, performs subscriber verification on a data call transmitted from the terminal 200. To the GGSN (220).

In addition, the SGSN 210 generates a data call message using the GGSN 220 corresponding to the APN information provided in the data call request of the terminal 200 as a destination address, and uses the generated data call message as the corresponding GGSN 220. To transmit.

The GGSN 220 allocates an IP address to the terminal 200 by referring to the APN information of the data call message provided from the SGSN 210.

At this time, when the data call message is received from the SGSN 210, the Gn interface unit 230 of the GGSN 220 selects one of GCP1, 2 (240/1, 240/2), and then selects a GCP. Provide data call messages.

The traffic measurement module 232 of the Gn interface unit 230 measures traffic for each of GCP1 and 2 (240/1 and 240/2) in the GGSN 220.

GCP1 and 2 (240/1 and 240/2) have different IP pools and identification information. Each GCP1 and 2 (240/1 and 240/2) has an IP set internally in response to a data call message. IP is allocated to the terminal 200 based on the pool. The identification information set in each of GCP1 and 2 (240/1 and 240/2) may be an IP address dependent on the APN information of the GGSN 220. For example, when the APN information is "Skt.com", the identification information of the GCP1 240/1 may be "Skt.com_1", and the identification information of the GCP2 240/2 may be "Skt.com_2".

Meanwhile, configuration information set in the GCP1 240/1 and the GCP2 240/2 in the present invention is as shown in FIG. 3.

The conversion module 234 is a means for converting the destination address set in the data call message into identification information of the selected GCP, through which the data call message may be transmitted to the selected GCP.

The diagnostic module 236 checks for abnormalities of GCP1, 2 (240/1, 240/2), and the Gn interface unit 230 checks the result of the diagnosis module 236 when selecting a GCP to transmit a data call message. Select GCP as the basis. That is, when there is a failure in the GCP1 (240/1) as a result of checking the abnormality of the GCP1, 2 (240/1, 240/2) in the diagnostic module 236, the Gn interface unit 230 in the SGSN (210) Send all the transmitted data call messages to GCP2 (240/2).

In the present invention, the Gn interface unit 230 may select a GCP to transmit a data call message based on the traffic amount for each GCP measured by the traffic measurement module 232, or may sequentially or alternately select the GCP.

That is, the Gn interface unit 230 compares the traffic volume for each GCP measured by the traffic measurement module 232, selects a GCP having a small traffic volume, and transmits a data call message to the selected GCP, thereby using the selected GCP. IP may be allocated to the terminal 200.

In addition, the Gn interface 230 may select GCP sequentially or alternately, that is, the first data call message provided from the SGSN 210 is transmitted to the GCP1 240/1, and then the second data call message is transmitted. Send to GCP2 240/2, and provide the third data call message back to GCP1 240/1.

In the exemplary embodiment of the present invention, the Gn interface unit 230 of the GGSN 220 receives a data call message and then selects a GCP to assign an IP to the terminal 200 based on the data call message. As another example, the GCP to allocate an IP to the terminal 200 may be appropriately selected using a load share function to the SGSN 210 and identification information of the GCPs in the GGSN 220.

That is, identification information of GCP1, 2 (240/1, 240/2) is stored in the GGSN 220, and the terminal 200 uses the AP 200 as arbitrary APN information, for example, "Skt.com". And when the RNC 204 is connected to the SGSN 210, the SGSN 210 uses the load share function to perform GCP1, 2 (240/1, 240/2) in the GGSN 220 corresponding to “Skt.com”. For example, after selecting GCP1 240/1, a data call message including identification information of the selected GCP1 240/1 is generated and provided to the GGSN 220. Accordingly, the Gn interface unit 230 of the GGSN 220 converts the destination address of the data call message by using the identification information of the GCP1 240/1 included in the data call message, thereby converting the data call message to the GCP1 240. / 1), and the GCP1 240/1 allocates an IP to the terminal 200 based on the IP pool set therein.

As such, according to an embodiment of the present invention, as the data call is received through the APN, by selecting the GCP to process the data call and processing the data call using the selected GCP, not only can the APN resource be efficiently managed. GCP traffic can be distributed.

The operation of the data call processing system having the above configuration will be described with reference to FIGS. 4 and 5.

4 is a flowchart illustrating a data call processing process in a WCDMA network according to an embodiment of the present invention.

First, as shown in FIG. 4, when the terminal 200 requests data call service by providing APN information, for example, “Skt.com” to the SGSN 210 through the Node B 202 and the RNC 204. (S400), the SGSN 210 is one of the GCP1, GCP (240/1, 240/2) in the GGSN 220 corresponding to the APN information using the load share function, for example of the GCP1 (240/1) A representative IP (Skt.com_1), which is identification information, generates a designated data call message (S402).

Then, the SGSN 210 provides the data call message generated by accessing the GGSN 220 based on the APN information provided from the terminal 200 to the GGSN 220 (S404).

The Gn interface unit 230 of the GGSN 220 converts the destination address of the data call message into the representative IP (Skt.com_1) of the GCP1 240/1, and provides the changed data call message to the GCP1 240/1. (S406, S408).

The GCP1 240/1 receiving the data call message allocates an arbitrary IP address to the terminal 200 based on the set IP pool information (S410). Accordingly, the terminal 200 uses the allocated IP address. To transmit and receive data packets.

According to an embodiment of the present invention, regardless of the APN information received by the SGSN 210, by generating a data call message including the identification information of the GCP to assign IP to the terminal 200 to transmit to the GGSN 220 In addition, regardless of the APN to which the terminal 200 is connected, the GCP may be selected to efficiently manage the APN resource.

5 is a flowchart illustrating a data call processing process in a WCDMA network according to another embodiment of the present invention.

First, as shown in FIG. 5, the terminal 200 provides APN information, such as "Skt.com", to the SGSN 210 through the Node B 202 and the RNC 204 to request a data call service. (S500).

Accordingly, the SGSN 210 generates a data call message having the APN information as a destination address (S502), and then accesses the generated data call message by accessing the GGSN 220 corresponding to the APN information provided from the terminal 200. It transmits (S504).

The Gn interface unit 230 of the GGSN 220 selects any one of GCP1 and 2 (240/1 and 240/2) (S506). When selecting any one of GCP1 and 2 (240/1 and 240/2), the Gn interface unit 230 traffics each GCP1 and 2 (240/1 and 240/2) measured by the traffic measurement module 232. It can be selected based on the quantity, alternatively or sequentially.

Then, the conversion module 234 of the Gn interface unit 230 converts (S508) the destination address of the data call message to the representative IP (Skt.com_1) which is identification information of the selected GCP, for example, GCP1 240/1. In operation S510, a data call message is provided to the GCP1 240/1.

The GCP1 240/1 receiving the data call message allocates an arbitrary IP address to the terminal 200 based on the set IP pool information (S512). Accordingly, the terminal 200 uses the allocated IP address. To transmit and receive data packets.

According to another embodiment of the present invention, as the data call is received through the APN, by selecting the GCP to process the data call and processing the data call using the selected GCP, not only can the APN resources be efficiently managed but also GCP-specific You can distribute traffic.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention generates a data call message including the identification information of the GCP to allocate IP to the terminal regardless of the APN information received by the SGSN and transmits the data call message to the GGSN, regardless of the APN connected to the terminal GCP Since it can be selected, it is effective to manage APN resources efficiently.

In addition, the present invention, by selecting the GCP to process the data call as the data call is received through the APN and processing the data call using the selected GCP, not only can efficiently manage the APN resources but also distribute the traffic per GCP It can be effective.

On the other hand, the present invention by selecting the GCP irrespective of the APN, there is an advantage that can be assigned to the terminal by selecting a different GCP when a specific GCP failure.

Claims (12)

delete delete SGSN for transmitting a data call message with a destination address of GGSN corresponding to the APN information provided from the terminal; A plurality of GCPs installed in the GGSN and allocating IPs to the terminal based on the data call message of the SGSN; A traffic measurement module for connecting the SGSN and the GGSN and measuring the traffic volume for each of the GCPs, and based on the traffic volume for each GCP measured by the traffic measurement module as a data call message is received from the SGSN. A Gn interface for selecting any one of the plurality of GCPs and providing the data call message to the selected GCP Data call processing system in a mobile communication network comprising a. delete The method of claim 3, wherein The plurality of GCPs, the different identification information is set, characterized in that the data call processing system in a mobile communication network. The method of claim 5, wherein The Gn interface unit, And a conversion module for converting a destination address of the data call message into identification information of the selected GCP. The method of claim 3, wherein The Gn interface unit, And sequentially selecting the plurality of GCPs and providing the data call message to the selected GCPs. The method of claim 3, wherein The Gn interface unit, And a diagnostic module for checking an abnormality of the GCPs. The method of claim 8, The Gn interface unit, And selecting one of the plurality of GCPs and transmitting the data call message based on an abnormality check result for each GCP in the diagnostic module. delete delete Receiving a data call request from the terminal using arbitrary APN information of the terminal in SGSN; Generating a data call message having a GGSN corresponding to the APN information as a destination address and transmitting the same to the GGSN; Selecting one of the plurality of GCPs based on the traffic volume of GCPs in the GGSN receiving the data call message from the SGSN; Transmitting the received data call message to the selected GCP; Allocating an IP to the terminal in the GCP receiving the data call message Data call processing method in a mobile communication network comprising a.

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