KR20030085404A - selector for call serving packet data in mobile communication network - Google Patents

Abstract

PURPOSE: A selector capable of a packet data call service in a mobile communication network is provided to reduce network construction components for the packet data call service without using an extra PSDN(Public Switched Data Network). CONSTITUTION: A connection unit(11) is connected with a BTS(Base Transceiver Station) for communicating with the BTS. A resource management(12) manages resources. A power control(13) controls power for operations of a system. A frame selection function(14) selects a frame. A PPP termination(15) is connected with the frame selection function(14) for executing a PPP(Point to Protocol) termination function. A TCP/IP(Transmission Control Protocol/Internet Protocol) stack(17) is connected to the PPP termination(15) by an AAA authentication interface(16) for executing communication.

Description

Selector for call serving packet data in mobile communication network

The present invention relates to a selector capable of packet data call service in a mobile communication network. More particularly, the present invention relates to a mobile data communication service capable of providing a packet data call service without using a separate PDSN in a structure of a wireless data network using mobile communication. The present invention relates to a selector capable of packet data call service in a network.

In general, mobile communication is intended for mobile devices such as people, cars, ships, trains, and aircraft, including mobile phones (mobile phones, vehicle phones), port phones, aircraft phones, mobile phones (trains, cruise ships, Installed on express buses), radio calls, radiotelephones, satellite mobile communications, amateur radio, and fishing service.

Such mobile communication includes AMPS (ADVANCED MOBILE PHONE SERVICE) system using analog method, CDMA system and TDMA system using digital method, and FDMA (FREQUENCY DIVISION MULTIPLE ACCESS: frequency division multiple access) system.

A CDMA system is a mobile station, which is a terminal device that allows a subscriber to communicate through a mobile communication network by selectively or simultaneously supporting a service of an AMPS system and a service of a CDMA system, and an IS-95 in a wireless section together with the mobile station. A base station that communicates using a protocol defined in the above, a control station that controls a radio link and a wired link, and performs a handoff function for maintaining the continuity of the call even when the subscriber is moving, and the subscriber's call path And a home location register for receiving subscriber information and exchanging signals with the exchange.

The control station (BSC) of the mobile communication system is provided with a selector block (TSB) for directly communicating with the mobile station in a traffic mode using the channel block of the base station.

However, there is a problem in that the selector block must support the TCP / IP protocol by adding a PPP (Point to Point Protocol) termination function.

In other words, a separate TCP / IP interface is needed to connect to the selector and connect to the IP network. In the case of the BSC of such a structure, since the main processor handles more work, there is a problem in that the number of subscribers that can be accommodated is reduced or a better performance of the main processor is required rather than a separate structure.

Accordingly, an object of the present invention is to provide a packet data call service without using a separate PDSN in the structure of a wireless data network using mobile communication. The present invention provides a selector capable of packet data call service in a mobile communication network.

Features of the selector capable of packet data call service in the mobile communication network according to the present invention for achieving the above object,

A mobile unit having a connection unit connected to a base station (BTS) to communicate with each other, a resource management unit for managing resources, a power control unit for controlling power for operation of the system, and a frame selection function unit for selecting a frame In the communication selector,

A PPP termination unit connected to the frame selection function unit to perform a point to protocol (PPP) termination function;

It is composed of a TCP / IP protocol stack unit connected to the PPP termination unit using an AAA authentication interface to perform communication.

1 is a diagram illustrating a network structure for a packet data call service in a mobile communication network according to the present invention;

2 is a diagram showing another network structure for a packet data call service in a mobile communication network according to the present invention;

3 is a selector capable of packet data call service in a mobile communication network according to the present invention.

<Explanation of symbols for the main parts of the drawings>

11 connection

12: Resource Management Department

13 power control unit

14: Frame selection function

Hereinafter, a preferred embodiment of a selector capable of packet data call service in a mobile communication network according to the present invention will be described with reference to the accompanying drawings.

1 is a diagram illustrating a network structure for a packet data call service in a mobile communication network according to the present invention.

As shown in FIG. 1, the BSC network 10 has a structure that implements the PDSN function in the selector block 20 of the BSC network 10. 30 and PSDN 40.

Here, the reverse data of the packet data call is passed from the terminal to the base station through the selector block 20 in the BSC, and then the PPP frame is sent to the PCF 30, and the PCF 30 is connected to the PDSN 40 and a predetermined standard (RP interface). The forward direction is transmitted in the order of PSDN, PCF, selector block, base station, and terminal in the Internet.

Among the network components of the IOS standard, the PCF transfers the selector frame to the PDSN and performs the reverse function. The PDSN is an end of the PPP sent from the terminal to the Internet network in the form of IP and vice versa.

If these functions can be delivered directly using the TCP / IP protocol stack inside the selector, the PCF proposed in the specification is not required and the PPP termination function can be performed in the selector block rather than a separate PDSN to provide the same function as the specification. Can be done. In other words, as shown in Figure 2, the PPP termination function of the frame received from the terminal, and converts the frame to IP to transmit to the Internet network and the reverse function to add the function to the selector block. In this way, all packet data calls can be serviced within the existing BSC without additional hardware.

3 is a selector capable of packet data call service in a mobile communication network according to the present invention.

As shown in FIG. 3, a connection unit 11 connected to a base station (BTS) to communicate with each other, a resource management unit 12 for managing resources, and a power controlling power for operation of the system A PPP termination unit 15 connected to the control unit 13, the frame selection function unit 14 for selecting a frame, and the frame selection function unit 14 to perform a point to protocol (PPP) termination function. And a TCP / IP protocol stack unit 17 connected to the PPP termination unit 15 via an AAA authentication interface 16 to perform communication.

The operation of the selector configured as described above is as follows.

First, the connection unit 11 of the selector connected to the base station communicates with the base station.

The resource management unit 12 of the selector manages resources.

In particular, the power control unit 13 of the selector controls the power for the operation of the system.

The selector frame selection function unit 14 selects a frame and transmits the selected frame to the PPP termination unit 15.

In addition, the PPP termination unit 15 transmits a Point to Protocol (PPP) termination to the TCP / IP protocol stack unit 17 through the AAA authentication interface 16.

As described above, according to the present invention, packet data call services can be performed without using a separate PDSN in the structure of a wireless data network using mobile communication, thereby reducing network components for packet data call services. have.

Claims (1)

A mobile unit having a connection unit connected to a base station (BTS) to communicate with each other, a resource management unit for managing resources, a power control unit for controlling power for operation of the system, and a frame selection function unit for selecting a frame In the communication selector, A PPP termination unit connected to the frame selection function unit to perform a point to protocol (PPP) termination function; And a TCP / IP protocol stack configured to perform communication by being connected to the PPP termination unit using an AAA authentication interface.