KR20010047502A - Method for comprising network by use of ipc multiplex in cdma v.ⅲ system - Google Patents

Abstract

PURPOSE: A method of structuring a network using an IPC multiplexer in a CDMA V.III system is provided to improve the efficiency of the line and also reduce the charge using private line of the mobile communication businessman by using asynchronous transfer mode multiplexer. CONSTITUTION: IPC packet data are connected to the remote dedicated line network. The dedicated line network is connected to an IPC multiplexer(200) in the remote place. Data transceiving is performed in the form of IPC packet data. The IPC multiplexer is connected to each base station through E1 line. The data transceived between the IPC multiplexer and the base station are communicated with the asynchronous transfer mode cell.

Description

METHODS FOR COMPRISING NETWORK BY USE OF IPC MULTIPLEX IN CDMA V.III SYSTEM}

The present invention relates to a method for configuring a network in a communication system, and more particularly, to a method for configuring a network in a code division multiple access (CDMA) V.III scheme.

Typically, a mobile communication network (Network) is composed of a Mobile Switching Center (MSC), Base Station Systems (BTSs) and Base Station Controllers (BSCs). In such a configuration, the mobile communication switching system and the base station controllers are typically located at the telephone company, and the base stations are located at a remote place away from the telephone company. Next, a method of configuring the above-described network will be described with reference to FIGS. 1 and 2.

1 is a view showing the configuration of a mobile communication network according to the prior art. Hereinafter, a configuration of a mobile communication network according to the prior art will be described with reference to FIG. 1. A mobile communication switching system (MSC) 30 is connected to the public network (PSTN) 10 and also to a plurality of base station controllers (BSCs) 40A, 40B, ... 40N at the bottom. The mobile communication switching system 30 and the base station controllers 40A, 40B, ..., 40N are connected by E1, and one base station controller is connected by about 24 E1. Each of the base station controllers 40A, 40B, ..., 40N is connected to the controller routing unit 50 through a serial port such as RS-422. The controller routing unit 50 is connected between the base station controllers 40A, 40B, ..., 40N, and transmits and receives data. By doing so, the controller routing unit 50 performs an operation of processing a handoff when a handoff occurs by moving beyond the base station control period when a handoff occurs between the mobile communication terminal base station and the base station. First, base stations located in a short distance are connected to each of the base stations A00, ..., A11 through a dedicated local area network 20A, and each of the base stations A00, ..., A21 is a mobile communication terminal located in its cell. And a wireless communication link is formed. At this time, the dedicated circuit network 20A is usually composed of a 2.5G optical communication network, and the base stations A00, ... A21 are connected to the E1 link in a circuit manner. Twenty-two base stations A00,..., A21 may be connected to one base station controller 40A connected through the dedicated line network 20A. Also, since the base stations located in the near field have many subscribers, one base station has a structure of 3FA / 3sector. In this structure, one base station usually has 120 channels. Therefore, since one E1 channel can accommodate 30 channels, four E1 lines are connected to one base station. Since the connection between the base station controller 40A in the dedicated circuit network 20A uses a packet connection, one E1 can normally accommodate 120 channels and can accommodate up to 210 channels in the case of a packet. Therefore, 6 to 12 E1 lines may be used as the dedicated line network 20A in one base station controller.

However, our country has many mountainous areas, and there is a clear distinction between the densely populated areas and those that do not. Therefore, base stations must be installed for smooth communication in mountainous areas and low population areas. Thus, base stations are installed in mountainous areas and small populations through long-distance leased networks at telephone companies. At this time, when the base station controller 40N is not located at a remote place and is located at a telephone company, it should be configured using a remote dedicated line network 20B. However, a base station located in a mountainous area or a small population area does not use a base station such as a densely populated area as described above, and uses a base station of 1FA / omni type. That is, one base station uses a base station that can accommodate only about 30 channels. In this case, 36 base stations may be connected to one base station controller. That is, 35 E1 lines are connected through the dedicated line network 20B, and 36 E1 lines must also be connected to the dedicated line network 20B in the base station controller 40N located in the switching center 100.

Each base station (B00, B01, ..., B35) should be connected to each base station with the E1 line from the dedicated line network 20B. In addition, in order to transmit data over a long distance, the base station controller 40N must connect it to a long distance through a remote dedicated circuit network 20B. In this case, there is a problem in that unnecessary E1 lines must be connected. That is, a problem arises in that the bandwidth allocated to the E1 line allocated to one base station is not fully utilized. In addition, if there are different providers and mobile carriers that supply the main network like in Korea, and the main network operators differentiate between the short-distance and long-distance leased network fees, the mobile operators incur a lot of waste. This is because an operator may collect charges several times more expensive when using a long-distance private network than when using a short-range private network. Therefore, in order to improve this, a mobile communication service provider uses a method of installing a base station controller at a remote location. This will be described with reference to FIG. 2.

2 is a diagram illustrating a configuration of a mobile communication network in which a base station controller is installed at a remote location according to the prior art. Hereinafter, an operation of configuring a mobile communication network by the method according to the related art will be described in detail with reference to FIG. 2.

First, the same parts as those in FIG. 1 described above have the same reference numerals. First, the base station controllers 40A, 40B, ... 40N and the controller routing unit 50 located in the public network 10, the telephone company 100, and the telephone company are identical. The dedicated line network 20A connected to the base station controller 40A through the E1 line is also the same as that of FIG. 1, and the base stations A00 to A21 connected thereafter also have the same configuration.

Next, look at the difference between the case where the base station is located in the remote. First, a line L11 for forming a call link for connecting with the mobile communication switching system 30 is connected to a remote dedicated line network 20B. In addition, a line L01 for forming a data link between the remote base station controller 60 and the controller routing unit 50 is also connected to the remote dedicated circuit network 20B. The dedicated line network 20B is connected from the mobile communication switching system 30 to a line L11 formed to conduct a call to the remote base station controller 60 through a line of 21 E1 lines shown as (L12). do. In addition, the line L01 connected to the dedicated line network 20B from the controller routing unit 50 is connected to the remote base station controller 60 through the line shown by two E1 lines (L02). Then only 23 E1 lines are connected to the remote base station controller 60 through the dedicated circuit 20B. Therefore, it is possible to reduce the cost of the leased line used at a long distance.

However, even in such a method, the E1 line of the local area is used from the remote base station controller 60 through the dedicated line network 20C, and the cost of using the dedicated line can be reduced by the mobile service provider. There is a problem that can not prevent the waste of the band. In addition, even when using this method, there is a problem in that the connection between the remote base station controller 60 and the dedicated circuit network 20B cannot be reduced by connecting a circuit.

Accordingly, an object of the present invention is to provide a method for constructing a network that can reduce a dedicated line usage cost of a mobile communication service provider while increasing line efficiency using an asynchronous transmission mode multiplexer in a code division multiple access V.III system.

The present invention for achieving the above object is a network configuration method using an IPC multiplexer in a code division multiple access V. III system, and is connected to a remote dedicated circuit network for transmitting and receiving the IPC packet data; The dedicated line network is connected to an IPC multiplexer located at a remote location, and data transmission and reception is made of IPC packet data, and the IPC multiplexer is connected to each base station through an E1 line. The data transmitted and received between the IPC multiplexer and the base station is characterized in that the network is configured to communicate in an asynchronous transmission mode cell.

1 is a view showing the configuration of a mobile communication network according to the prior art;

2 is a diagram illustrating a configuration of a mobile communication network in which a base station controller is installed at a remote location according to the prior art;

3 is a diagram illustrating a network configuration for base station operation of a mobile communication network according to an embodiment of the present invention;

Figure 4 is a block diagram of an IPC multiplexer applied to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The same parts also use the same reference numerals, although shown in the other figures.

3 is a diagram illustrating a network configuration for base station operation of a mobile communication network according to an embodiment of the present invention. Hereinafter, a method of configuring a network constituting a mobile communication network according to the present invention will be described in detail with reference to FIG. 3.

First, the same parts as those of FIGS. 1 and 2 described above have the same reference numerals. First, the base station controllers 40A, 40B, ... 40N and the controller routing unit 50 located in the public network 10, the telephone company 100, and the telephone company are identical. The dedicated circuit network 20A connected to the base station controller 40A through the E1 line is also the same as that of FIG. 1, and the base stations A00 to A21 connected thereafter also have the same configuration.

In FIG. 2, the base station controller 40N is installed inside the telephone company 100 instead of the base station controller 60 located at a remote location. Then, data is transmitted to a cell of IPC (Inter-Processor Communication) through a line L21 connected between the base station controller 40N and the dedicated line network 20B. In addition, the connection through the line L11 between the controller routing unit 20B and the dedicated line network 20B is also connected to the cell in the asynchronous transmission mode. The configuration between the dedicated line network 20B and the IPC multiplexer 200 also transmits and receives IPC packet data of E1 or DS3 level. In addition, the connection between the dedicated line network 20B and the IPC multiplexer 200 is connected through an E1 line or a DS0 level line that transmits packet data. That is, it has a configuration capable of transmitting IPC packet data. In addition, the IPC multiplexer 200 separates the data introduced through the dedicated circuit network 20B by destination and multiplexes the data, and transmits the data to the corresponding base station. Therefore, when the asynchronous transmission mode is used, 110 channels can be accommodated when the packet E1 is used, and thus up to four base stations can be accommodated through one E1 line. Therefore, it is possible to reduce a very large number of lines compared to using one E1 line for a single base station, and also reduces the rent of the line from the operator side. In addition, the line between the IPC multiplexer 200 and the plurality of base stations B00, B01, ..., B35 uses the E1 line. And the data received through them is also IPC packet data. Then, the IPC multiplexer 200 receives them and transmits them to another base station or transmits them to the dedicated line network 20B. Next, the configuration of the asynchronous transmission mode multiplexer will be described with reference to FIG. 4.

4 is a block diagram of an IPC multiplexer applied to the present invention. Hereinafter, a configuration of a multiplexer connecting each base station and a base station control period will be described with reference to FIG. 4.

The control unit 211 performs switching control of the IPC multiplexer 200 and control of the base station connection units 215A, 215B, 215C,-, 215N. In addition, the IPC multiplexer 212 controls to transmit the data to be transmitted as an asynchronous transmission mode packet. The ATM multiplexer 212 is connected to a base station controller located at a telephone company via a remote dedicated circuit network 20B, and transmits a packet in an asynchronous transmission mode. In addition, the maintenance unit 213 performs overall control for maintenance of the ATM multiplexer 200. The maintenance unit 213 may be configured to operate in the control unit 211 at the time of designing the system. In addition, each of the base station connections 215A, 215B, 215C, and -215N is connected to the base station through the E1 line. The switch unit 214 performs a switching operation for connecting each base station and the ATM multiplexer 212.

As described above, by installing an ATM multiplexer at a remote location and sending and receiving data, it is possible to easily manage a plurality of remote base stations and to reduce the number of E1 lines used at a long distance. It works. In addition, there is an advantage that the efficiency of the use of the dedicated line is increased.

Claims (2)

A method for constructing a network using an IPC multiplexer in a code division multiple access V. III system, Connect with a remote dedicated circuit network for transmitting and receiving the IPC packet data, The dedicated circuit network is connected to an IPC multiplexer located at a remote location, and data transmission and reception is made of IPC packet data. The IPC multiplexer is connected to each base station through an E1 line, and data transmitted and received between the IPC multiplexer and the base station is configured to communicate by asynchronous transmission mode cell. Network configuration using asynchronous transmission mode multiplexer in access V. III system. The method of claim 1, wherein the IPC multiplexer, Two or more base station connections for connecting each base station through at least one E1 line, An IPC multiplexer for transmitting IPC packet data in connection with a long-distance dedicated network; A switch unit for connecting through switching between the base station connection units and the asynchronous multiplexers; And a switch unit, a transmission mode multiplexer, and a control unit for controlling the base station access units.