KR0171275B1 - The second private wireless telephone system using cellular phone and home wireless phone - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a second generation private radiotelephone system using a cellular phone and a home radiotelephone. In particular, a cellular phone capable of using a plurality of home radiotelephones by using one cellular frequency channel by improving signal processing schemes. And a second generation private wireless telephone system using a home wireless telephone.

The second generation private radiotelephone system using the cellular tone and the home radiotelephone provided by the present invention includes a plurality of radiotelephone terminals and a plurality of radiotelephone terminals for transmitting and receiving messages to control communication of the plurality of radiotelephones. The mobile base station of < RTI ID = 0.0 > and < / RTI > It consists of a controlling mobile telephone switching center.

Description

Second Generation Private Cordless Phone System Using Cell Phones and Home Cordless Phones

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a second generation Cordless Telephone 2 system using a cellular phone and a home wireless telephone. In particular, the present invention relates to a plurality of home wireless radio channels in which one cellular frequency channel is improved. A second generation private radiotelephone system using a cellular phone and a home radiotelephone made available to a telephone.

The cellular system divides the entire service area into a plurality of wireless base stations, constitutes cells, which are small service areas, and centrally controls these wireless base stations so that subscribers can continue their calls while moving between cells. That's the way it is.

In such a cellular system, the use frequency of the terminal is not fixed to a specific channel, but the base station assigns a call channel through a signal channel, and thus the terminal is automatically tuned to the frequency. Therefore, adjacent cells must use different frequencies, but the same frequency can be reused in cells that are separated by a certain interval, and the exchange can control the channel according to the movement of the terminal in order to allow the mobile subscriber to make continuous calls. Alternatively, the phone automatically switches to the appropriate frequency by controlling the call channel.

Therefore, the cellular system is capable of efficiently reassigning radio channels between adjacent radio base stations to the terminal by reusing radio frequencies, thereby increasing frequency utilization efficiency and increasing subscriber capacity.

The cellular system consists of a mobile telephone terminal, a wireless base station and a mobile telephone switching office (MSTO), which will be described in detail below with reference to the drawings.

1 is a schematic diagram of a conventional cell configuration, and FIG. 2 is a schematic block diagram of a conventional cell phone system.

Referring to FIG. 1, the conventional cell configuration is a cell 11 which is a communication unit centered on a cell station point, and receives a control message from the cell 11, receives an available channel, and transmits and receives a cell. It consists of a number of mobile terminals 12, 13 and 14 which are possible.

Referring to FIG. 2, a conventional cellular phone system is composed of a mobile terminal 23, a wireless base station 22, and a mobile telephone switching office (MTSO) (21).

The mobile terminal 23 includes a transceiver 37 for transmitting and receiving wireless high frequency signals, antennas 43 and 44 for transmitting and receiving wireless signals, a logic unit 36 for processing the signals to be transmitted and received, and each of the elements. It is composed of a control unit 35 for controlling the operation, the wireless base station 22 has a function of connecting the mobile terminal 23 and the MTSO 21 and a plurality of antennas for receiving or transmitting signals transmitted and received (38,39,40,41,42), a plurality of high frequency frames (32,33,34) for processing high frequency signals, and maintenance for testing and maintaining the data input to the wireless base station (22) And a test frame 31. A data frame 27 having a controller 29 and a data / location radio 30 for processing data input from the MTSO 21, the data frame 27 and the plurality of high frequency frames 32, 33, And a line monitoring frame 28 for monitoring the call path.

In addition, the MTSO 21 handles calls originated and received at each radio base station 22, and has a function to connect to a switchboard of a public telephone network together with a central control function to allow all base stations to operate efficiently. Have The MTSO 21 includes a network switching unit 25 connected to the line frame 28 of the wireless base station 22 through a voice transmission path, the data frame 27 and data of the wireless base station 22. It is composed of a data terminal 26 connected by a link, a processor 24 for controlling operations of the network switching unit 25 and the data terminal 26, and processing each function of the MTSO 21.

The cellular system configured as described above accommodates a plurality of mobile terminals within a radius of a cell, and the plurality of mobile terminals receive and transmit and receive control messages of the cells in an available channel.

At this time, each mobile terminal registers its location with the wireless base station of the cell, so that the mobile terminal can transmit and receive the mobile terminal. Analyzing the control message of the wireless base station 22 received from the transceiver 37 to confirm the channel available from the current wireless base station, and by transmitting the unique number of the mobile terminal to the wireless base station 22, The 22 and the MTSO 21 can register the mobile terminal and make an information message or a call.

When the mobile terminal 23 transmits, the control unit 35 of the mobile terminal 23 transmits the control and data frame message of the logic unit 36 to the wireless base station 22 via the transceiver 37. The wireless base station 22 receiving the received data is analyzed by the controller 29 of the data frame 27 through the high frequency frames 32, 33, and 34, and the data is transmitted through the data terminal 26 of the MTSO 21. Transmitting and receiving, MTSO 21 connects the call path in the processor 24 through the network switch 25.

When the mobile terminal 23 receives the mobile terminal 23, the mobile terminal 23 receives a message allowing the call connection from the wireless base station 22 to control the logic of the logic unit 36 in the control unit 35. To connect the call.

Although there is no big problem in the cellular system as described above, the present invention provides a second generation private wireless telephone system using a cellular phone and a home wireless telephone, which can use a plurality of home wireless telephones using one cellular frequency channel. It aims to do it.

1 is a schematic diagram of a conventional cell configuration,

2 is a schematic block diagram of a conventional cell phone system,

3 is a schematic diagram of a cell configuration according to an embodiment of the present invention,

4 is a schematic block diagram of a mobile base station according to an embodiment of the present invention;

5 is a schematic block diagram of a second generation private radiotelephone system according to one preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

51: cell 52,53,54: subcell

55: mobile base station 56, 57: terminal of a wireless telephone

61: mobile terminal 62: wireless telephone base station

71: MTSO 72: wireless base station

73: mobile base station

In order to achieve the above object, a second generation private wireless telephone system using a cellular phone and a home wireless telephone provided by the present invention includes a plurality of wireless telephone terminals, a mobile terminal, and a plurality of wireless telephone terminals through the mobile terminal. A mobile station comprising a wireless telephone base station that is in charge of an interface between a mobile telephone terminal and a mobile terminal so as to communicate with a wireless base station, and allocates a communication channel to the mobile terminal of the mobile station, thereby transmitting and receiving data to and from the wireless telephone terminal. And a mobile telephone station connected to the wireless base station with a data link and a voice transmission line to control the operation and system of the wireless base station.

Hereinafter, the present invention will be described in detail with reference to the drawings.

3 is a schematic diagram of a cell configuration according to a preferred embodiment of the present invention, Figure 4 is a schematic block diagram of a mobile base station according to a preferred embodiment of the present invention, Figure 5 is a preferred embodiment of the present invention Is a schematic block diagram of a second generation private wireless telephone system according to the present invention.

3 and 5, the cell configuration according to the preferred embodiment of the present invention is located in the wireless base station 72 for generating information and control signals for the communication of the mobile base station 55 in a certain range is located. The mobile base station 55 constitutes a single cell 51 around the cell station point, and is controlled by the cell station point of the radio base station 72, and serves as a small cell station point, and has multiple wireless telephone terminals. Performing the same operation as the radio base station 72 which generates information and control signals for the communication of (56, 57), it is composed of a small number of sub-cells 53, 54, 55.

In addition, referring to FIG. 4, the mobile base station 55 is a cellular phone of an existing cellular system. The mobile base station 55 communicates with the mobile terminal 61 in communication with a movement of the cell 51 from a wireless base station and an available channel. And a wireless telephone base station 62 for communicating with the mobile terminal 61 and controlling communication between the plurality of wireless telephone terminals 56 and 57.

Also, referring to FIG. 5, the second generation private wireless telephone system according to the preferred embodiment of the present invention includes a plurality of wireless telephone terminals 56 and 57, and a plurality of wireless telephone terminals 56 and 57; Mobile base station 55 for transmitting and receiving messages and controlling communication of the plurality of wireless telephone terminals 56 and 57, and wireless for transmitting and receiving messages with the mobile base station 55 and controlling the operation of the mobile base station 55. A base station 72 is connected to a fraudulent radio base station 72 by a data link and a voice transmission path, and is configured as a mobile telephone switching center 71 that controls the operation of the radio base station 72 and the entire system.

At this time, the mobile terminal 61 of the mobile base station 55, the wireless telephone base station 62, and the plurality of wireless telephone terminals 56, 57 are antennas 103, 104, 105, 73, 74 for receiving or transmitting radio signals. And transceivers 91, 94, 95 for transmitting and receiving data to and from the antennas 103, 104, 105, 73, and 74, logic units 90, 93, and 96 for processing the data for transmission and reception, and transceivers 91, 94, respectively. And a control unit (89, 92, 97) for controlling the operation of the logic unit (90, 93, 96), the communication between the mobile terminal 61 and the wireless telephone base station 62 is Since the MTSO 71 and the wireless base station 72 are the same as the configuration of the MTSO 21 and the wireless base station 22 of the conventional cellular system, the description thereof will be omitted. do.

In the second generation private wireless telephone system using the cellular phone and the home wireless telephone of the present invention as described above, the mobile terminal 61 is connected to the wireless telephone base station 62 to process a data protocol. A plurality of wireless telephone terminals 56.57 communicate data with mobile base station 55 with a unique ID code. Thus, the mobile terminal 61 can identify each of the wireless telephone terminals 56 and 57. In addition, the data communication protocol of the mobile terminal 61 and the wireless telephone terminal 56, 57 is used for data communication by changing the terminal identification code between the cell 51 and the mobile terminal 61 for data communication. The telephone terminals 56 and 57 can be managed separately.

The control unit 97 of the radiotelephone terminal 56, 57 controls the transceiver 95 to transmit specific data promised to the radiotelephone base station 62, and the radiotelephone terminal 56, 57 By analyzing the specific data received from the transceiver 95 of the wireless telephone base station 62 in the control unit 92 of the radiotelephone base station 62 to determine whether it is available, and is promised to the logic unit 90 of the mobile terminal 61 Send specific data which is protocol.

Accordingly, the mobile terminal 61 transmits data to the wireless base station 72 by securing an available channel stored from the wireless base station 72, and from the wireless base station 72, data analysis information and voice information. The mobile terminal 61, which has received the information on the channel assignment, transmits the received data to a protocol determined separately from the radiotelephone base station 62, and connects the voice channel.

The wireless telephone base station 62 converts the information received from the mobile terminal 61 into data corresponding to a protocol determined separately from the plurality of wireless telephone terminals 56 and 57 and transmits the data through the transceiver 94. Connect the voice transmission line.

The plurality of radiotelephone terminals 56 and 57 which have received the message from the radiotelephone base station 62 analyze the message received by the control unit 97, so that the logic unit 96 has a voice transmission path and the Connect the logic of the control unit 97.

In this way, a single cellular mobile communication terminal can be used by connecting a plurality of wireless telephone terminals.

By using the wireless telephone system using the cellular phone and the home wireless telephone of the present invention as described above, several cellular radiotelephone terminals can share a single cellular frequency channel, thus increasing the demand of the terminal and There is an effect of increasing the use efficiency of the mobile communication channel, there is an effect of expanding the service area. In addition, by applying to a wireless public telephone system, it can be utilized as a system of a second generation private wireless telephone combining a conventional cellular system and a conventional wireless telephone.

Claims (3)

A mobile station comprising a plurality of wireless telephone terminals, a wireless telephone base station in charge of an interface between the wireless telephone terminal and the mobile terminal such that the mobile terminal and the plurality of wireless telephone terminals can communicate with the wireless base station through the mobile terminal; A mobile base station which allocates a communication channel to a mobile terminal of a mobile station and transmits and receives data to and from the wireless telephone terminal, and is connected to the wireless base station through a data link and a voice transmission line to control the operation and system of the wireless base station. Second generation private wireless telephone system using a cellular phone and a home wireless telephone, characterized in that comprising a. 2. The cellular phone according to claim 1, wherein the mobile base station secures its own subcell area as a small base station, receives a channel from the wireless base station, and communicates with a plurality of wireless telephone terminals in a separate protocol. Second generation private radiotelephone system using mobile and home radiotelephones. The wireless terminal of claim 1, wherein the mobile terminal, the wireless telephone base station, and the wireless telephone terminal comprise an antenna for transmitting and receiving a radio signal, a transceiver for transmitting and receiving data to and from the antenna, a logic unit for processing the data for transmitting and receiving; And a control unit for controlling the operation of a transceiver and the logic unit, wherein the mobile terminal and the wireless telephone base station communicate with each other via the logic unit. Telephone system.