KR100367118B1 - Base station for providing a communication line through local area network in next-generation mobile communication network - Google Patents

Abstract

The present invention relates to a base station in a next-generation mobile communication network that provides a communication line with a local area network (LAN). In the next-generation mobile communication network to which the IMT-2000 asynchronous system is applied, the amount of spare space inefficiently wasted for each base station. By allowing the data communication line to be used as a communication line with a local area network (LAN) adjacent to the place or building where the base station is installed, the base station can efficiently use the excess data communication line that is wasted inefficiently. The local area network, which is installed adjacent to the base station, can transmit and receive multimedia data to the outside without using a separate dedicated line for connection connection with the packet switched data network (PSDN). Funded installation costs for leased lines for connection between switched data networks Very useful inventions that are able to prevent a.

Description

Base station for providing a communication line through local area network in next-generation mobile communication network

The present invention relates to a base station in a next generation mobile communication network that provides a communication line with a local area network (LAN) installed adjacent to a place or a building where a base station is installed in a next generation mobile communication network to which an IMT-2000 asynchronous system is applied.

FIG. 1 is a view illustrating a state in which a general next generation mobile communication network and a plurality of communication networks are connected and connected. In the next generation mobile communication network 100 to which the IMT-2000 asynchronous system is applied, a plurality of mobile communication terminals 101 and 102. A base station 11 for wireless communication and a base station controller 12 for controlling the base station 11 are included.

On the other hand, in the asynchronous transfer mode (ATM) communication network 200 connected to the next-generation mobile communication network 100, a plurality of matching to match a number of ATM switches (21, 22 ..) and network protocols Interworking function (IWF) (23,24 ..), including the next-generation mobile communication network 100, as well as a public switched telephone network (PSTN) 300, and a packet switched data network (PSDN) ( 400 to provide a high-speed communication line.

In addition, a general local area network (LAN) 500 includes a packet router 51, an Ethernet 52 that provides a communication line in a local area network using a bus structure, and the like. A plurality of hubs 501, 502, 503... To which multimedia devices are connected are included and connected to the packet switched data network 400.

That is, the packet router 51 in the local area network 500 is connected to the packet switched data network 400 through a separate dedicated line as shown in FIG. 1 to include video and audio data. The multimedia data can be transmitted and received to the outside through the packet switched data network (400).

However, as described above, since a separate communication line such as a dedicated line must be installed between the local area network 500 and the packet switched data network 400, a line installation cost is generated accordingly, and recently, the local area network 500 In general, installation and use of a dedicated line for connection connection between the local area network 500 and the packet switched data network 400 is incurred.

On the other hand, between the base station 11 and the base station controller 12 in the next-generation mobile communication network 100 to which the IMT-2000 asynchronous system is applied, a large capacity high-speed link capable of transmitting data of 155.52 Mbps per base station, for example It uses 'STM-1' link defined in the IMT-2000 asynchronous system, and the data in the wireless communication section, which is usually used best per one base station, is only about 2Mbps, so a total of 6 base stations The data in the wireless communication section that is best used in (6FA) is only about 12 Mbps, and even when considering data separately used for call processing and control between the base station 11 and the base station controller 12, the maximum 20 to 20 ~. It will not exceed 30 Mbps.

In addition, even if the redundancy generated according to the service type in the asynchronous transmission mode (ATM) communication network 200 is 50%, it becomes about 77Mbps (= 155.52 x 50%), so that one `STM- The remaining data communication line used in the first class' link is about 48 Mbps (= 155,52-(30 + 77)).

As described above, although a general IMT-2000 asynchronous system uses a large capacity high-speed link capable of transmitting 155.52 Mbps of data per base station, about 48 Mbps of data can be transmitted per one 'STM-1' link. There is a waste of inefficient data communication lines.

Accordingly, the present invention was created in consideration of the above situation, and in the next-generation mobile communication network to which the IMT-2000 asynchronous system is applied, the base station is provided with a spare data communication line that is inefficiently wasted for each base station. To provide a base station in a next-generation mobile communication network that provides a communication line with a local area network (LAN) to be used as a communication line with a local area network (LAN) installed adjacent to a place or a building. will be.

1 illustrates a state in which a general next generation mobile communication network and a plurality of communication networks are connected and connected.

FIG. 2 illustrates a state in which a next generation mobile communication network to which the present invention is applied and a plurality of communication networks are connected and connected.

3 illustrates a configuration and a communication protocol layer for a base station in a next generation mobile communication network providing a communication line with a local area network according to the present invention,

4 illustrates a structure of an ATM data cell transmitted and received between a base station in a next generation mobile communication network providing a communication line with a local area network and an ATM router in the local area network according to the present invention.

FIG. 5 illustrates a process of changing a transmission path and a transmission channel in a base station in a next-generation mobile communication network providing a communication line with a local area network according to the present invention according to VPI / VCI information transmitted in a header of ATM data. It is.

※ Explanation of code for main part of drawing

10: terminal 11110: base station

12: base station controller 21, 22: ATM switch

23,24: matching device 50: hub

51: packet router 52: Ethernet

100: next generation mobile communication network 200: asynchronous transmission mode (ATM) communication network

300: public switched telephone network (PSTN) 400: packet switched data network (PSDN)

510: ATM router 1101: RF transmission and reception module

1102: CDMA modem 1103: Line Interface Unit (LIU)

1104: communication module

In the next generation mobile communication network providing a communication line with a local area network according to the present invention for achieving the above object, the base station comprises a wireless transceiver module, CDA (CDMA) modem, and a line interface unit A base station in a next generation mobile communication network, the line interface unit comprising: a first layer, which is a communication protocol layer for data interface between the wireless communication module and mobile communication terminals transmitted and received via a CDM modem; Data of the mobile communication terminal received through the first layer and data received from an ATM router included in a local area network installed adjacent to the base station are distinguished and muxed according to the corresponding transmission path. A second layer, which is a communication protocol layer for discriminating and recognizing muxed data of the reverse path and classifying and transmitting the classified data to the first layer or the AT router; And a third layer, which is a physical communication protocol layer for transmitting the muxed data to the AT network through the corresponding transmission path and for receiving the data from the AT network.

First, FIG. 2 illustrates a state in which a next-generation mobile communication network 100 including a base station 110 according to the present invention, a local area network 500, and a plurality of communication networks 200, 300, and 400 are connected and connected. As described above with reference to, the next-generation mobile communication network 100 to which the IMT-2000 asynchronous system is applied, the base station 110 for wireless communication with a plurality of mobile communication terminals (101, 102 ..), and the base station 110 The base station controller 12 is configured to include, but, in the base station 110, communication of the margin for transmitting about 48 Mbps of data per 'STM-1' link capable of transmitting 155.52 Mbps of data The line is provided as a communication line with the local area network 500 installed adjacent to the base station 110.

Meanwhile, the local area network (LAN) 500 includes an ATM router 510 using an asynchronous transmission mode (ATM) protocol for transmitting and receiving data through a communication line with the base station 110, and a bus structure. Ethernet 52 for providing a communication line within a local area network, and a plurality of hubs 501, 502, 503 .. to which multimedia devices are connected, including multimedia including video and audio data. Data can be transmitted and received to the outside.

That is, without using a separate dedicated line for connection connection between the local area network 500 and the packet switched data network (PSDN) 400, the multimedia data to the outside through a communication line provided from the base station 110 You can send and receive.

Hereinafter, the configuration and operation of a base station 110 in a next generation mobile communication network providing a communication line with a local area network (LAN) according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 shows a partial configuration of a base station 110 in a next-generation mobile communication network that provides a communication line with a local area network (LAN) according to the present invention. The base station 110 includes an RF transmission / reception module 1101. And a CDMA modem 1102, and a Line Interface Unit (LIU) 1103, to provide a data interface between the plurality of mobile communication terminals 101, 102 .. and the base station controller 12. In addition, a communication module 1104 for a data interface is included between the line interface unit 1103 and the ATM router 510 included in the local area network 500. The communication module 1104 includes: The line interface unit 1103 may be integrally included.

Accordingly, the line interface unit 1103 includes a communication protocol layer (Layer) for data interface with the base station controller 12, that is, as shown in Fig. 3, the RF transceiver module 1101 and the CDMA modem ( An ATM Adaptation Layer (AAL) layer for processing traffic, control, and signaling of mobile communication terminals transmitted and received through 1102 to be suitable for an asynchronous transmission mode (ATM) scheme; An ATM layer which recognizes the traffic of the mobile communication terminals 101 and 102 and the ATM data of the ATM router 510 and muxes and demuxes the data according to a transmission path; And a physical layer (PHY) for physically transmitting and receiving the muxed and demuxed data through a corresponding transmission path.

The communication module 1104 connected to the line interface unit 1103 includes a communication protocol layer corresponding to the ATM router 510, that is, an ATM layer and a PHY layer. As illustrated in FIG. 4, the ATM data transmitted and received through the 510 may include VPI / VCI (Virtual Path ID / Virtual Channel ID) information, which is identification information for logically specifying a data transmission path. It has a structure of a header of bytes and 48 bytes of information, namely, data as one unit cell.

Therefore, in the ATM layer of the line interface unit 1103, the VPI / VCI information included in the ATM data transmitted from the ATM layer of the communication module 1104 or the ATM data transmitted through the AAL data. Read and confirm whether the corresponding ATM data is ATM data received by the interface with the ATM router 510 or whether the ATM data is received through the interface with the mobile communication terminals 101 and 102. Recognize and change to the predetermined PPI / VCI information between the respective networks, and physically transmitted through the PHY layer, for example, as shown in Figure 5, in the ATM layer, VPI / VCI information included in the ATM data header is variably designated, and the received ATM data is transmitted to the outside through an arbitrary transmission path.

For reference, the VCI information is identification information of a subordinate concept dependent on the VPI information, and designates any one transport channel among a plurality of transport channels included in the transmission path designated by the VPI information. Will be done.

Accordingly, the base station 110 has a short-distance communication line installed adjacent to the base station 110 that has a spare communication line capable of transmitting about 48 Mbps of data per 'STM-1' link capable of transmitting 155.52 Mbps of data. It is provided as a communication line with the communication network 500, the local area network 500 is installed adjacent to the base station, without using a separate dedicated line for connection connection with the packet switched data network (PSDN) 400 In this case, the ATM router 510 configured to be included in the local area network may be a 50 Mbps or 25 Mbps class among 155 Mbps, 50 Mbpa, or 25 Mbps data communication lines previously defined in the IMT-200. 50Mbps ATM router or 25Mbps ATM router suitable for data communication line will be available.

As described above, preferred embodiments of the present invention are disclosed for purposes of illustration, and those skilled in the art can improve and change various other embodiments within the technical spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

In a next-generation mobile communication network providing a communication line with a local area network according to the present invention as described above, in the next-generation mobile communication network to which the IMT-200 asynchronous system is applied, the excess data that is inefficiently wasted for each base station By enabling the communication line to be used as a communication line with a local area network (LAN) adjacent to the place or building where the base station is installed, the base station can more efficiently use the excess data communication line that is wasted inefficiently. In the local area network installed adjacent to the base station, multimedia data can be transmitted and received to the outside without using a separate dedicated line for connection connection with the packet switched data network (PSDN). Dedicated line installation cost for connection connection between data networks A very useful inventions that are able to be fundamentally prevented.

Claims (7)

A base station in a next generation mobile communication network comprising a wireless transmit / receive module, a CDA modem, and a line interface unit, The line interface unit, A first layer which is a communication protocol layer for data interface between the wireless transmission / reception module and mobile communication terminals transmitted and received through the CDM modem; Data of the mobile communication terminal received through the first layer and data received from an ATM router included in a local area network installed adjacent to the base station are distinguished and muxed according to the corresponding transmission path. A second layer, which is a communication protocol layer for discriminating and recognizing the muxed data of the reverse path and classifying and transmitting the classified data to the first layer or the AT router; And And a third layer, which is a physical communication protocol layer for transmitting the muxed data to the AT network through the corresponding transmission path, and receiving the data from the AT network. Base station in next-generation mobile communication networks that provide tracks. The method of claim 1, The first layer may be configured to control traffic, control, and signaling of mobile communication transmitters transmitted and received through the wireless transmission / reception module and the CD modem in an asynchronous transmission mode (ATM) scheme. A base station in a next generation mobile communication network providing a communication line with a local area network, characterized in that the AAL (ATM Adaptation Layer) layer to be processed appropriately. The method of claim 1, The second layer reads and confirms transmission identification information included in a header of data received from the mobile communication terminals and an ATM router included in a local area network installed adjacent to the base station, and transmits the identification information to the corresponding transmission path. A base station in a next-generation mobile communication network providing a communication line with a local area network, characterized in that it is suitably muxed ATM layer. The method of claim 3, wherein The transmission identification information is VPI / VCI (Virtual Path ID / Virtual Channel ID) information transmitted in a header of the data to identify and designate a transmission path or a transmission channel of the data. A base station in a next generation mobile communication network that provides a communication line. The method of claim 1, In the base station, A communication module including a communication protocol layer corresponding to an ATM router included in the local area network is additionally configured to provide a communication line with the local area network, wherein the communication module is connected to the line interface unit. Base station in the next generation mobile communication network. The method of claim 5, The communication module, the base station in the next generation mobile communication network providing a communication line with a local area network, characterized in that connected to the 25Mbps or 50Mbps ATM routers included in the local area network. The method of claim 5, The communication module, the base station in the next generation mobile communication network providing a communication line with a local area network, characterized in that it is integrally included in the line interface unit.