KR100240449B1 - Group call method in a trs - Google Patents

Abstract

The present invention relates to a group calling method of a frequency common communication system, and more particularly, to a group calling method of a frequency common communication system that enables a group call even when a terminal moves from one particular service zone to another service zone. In a group call method of a frequency common communication system composed of a plurality of portable terminals, a plurality of repeaters, a plurality of network switches, and a plurality of nodes, a network switch, a repeater controller, a high frequency channel unit, and a terminal transmit and receive control data to each other. When the terminal moves the service zone of the repeater, the terminal transmits the unique number of the terminal to the corresponding network switch, and the data is transmitted between the high frequency channel portion of the repeater, the repeater controller, and the network switch and the network switch. A single zone by connecting and configuring multiple nodes that regulate flow Even though some of the specific terminals in the same group move to another zone where they can be registered, there is an advantage that they can make the same call with the same group terminals in a single zone, so that the terminal is located in the service zone of another repeater that can be registered. Even if it is not restricted by the group call, there is an effect that can contribute to the improved reliability of the frequency common communication system.

Description

Group Calling Method of Common Frequency Communication System

The present invention relates to a group calling method of a TRS (Turned Radio System), and more particularly, to allow a group call even when a TRS terminal moves from one particular service zone to another service zone. A group calling method of a frequency common communication system.

In general, a trunked radio system is a terminal having a function of calling a terminal or a general telephone subscriber by calling a plurality of specific terminals or a general telephone subscriber at any place within a coverage area, and a signal with the terminal. And a repeater having a function of transmitting / receiving and processing, and a network switch having a function of connecting the repeater with a general telephone subscriber.

1 is a terminal channel configuration diagram of a conventional TRS system, in which each terminal (1 _{1 to} 1 _n , 2 ₁ to 2 _n , ..., 20 ₁ to 20 _n ) has 1 to 20 high frequency channels. The home channel is used to exchange control data with the high frequency control unit 21 to 40 of the repeater at a speed of about 300bps and 5kbps.

2 is a configuration diagram of a repeater of a TRS according to the prior art, and the repeater 95 includes twenty high frequency channel parts 1 to 20, respective high frequency control parts 21 to 40 for adjusting respective channels, and The repeater controller 19 controls data processing and each high frequency controller 21 to 40 between each of the high frequency controllers 21 to 40 and the network switch 92, and each of the high frequency channel units 1 to 20 is configured. After adjusting the repeater controller 91 or each high frequency control unit 21 to 40 for each control channel, the control data for the terminals is periodically transmitted.

The network switch 92 exchanges control data and voice signals related to connection attempts and calls with the repeater controller 91 of the repeater and adjusts a monitoring device and a charging device (not shown) required for operation of other common frequency communication systems. do.

3 is a functional block diagram of a TRS terminal according to the related art, according to adjustment of the transceiver 41, the voice controller 42, the speaker 43, the microphone 44, and the controller 48 for wireless communication. A frequency synthesizer 45 capable of setting a frequency to a control channel or a free channel, a control unit 48 for adjusting control data with the hardware of the terminal and the repeater 59, and an indicator 49 for displaying the state of the terminal. , The keypad 47 of the user interface function, the buzzer 46, and IPIROM for storing initial data necessary for the use of the terminal, such as the terminal's unique number, the system and group unique number, the talk time between the terminals, the terminal's password, etc. (50).

In addition, each of the terminals 1 _{1 to} 1 _n , 2 ₁ to 2 _n ,... 20 ₁ to 20 _n has 10 systems and 10 group call numbers for each system, and the keypad 47 The system and the call group are determined by the adjustment of, the transmission group number and the reception group number are determined, the group number of the terminal is composed of 1 to 255, and several terminals can have the same group call number.

The operation of the conventional frequency common communication system made as described above is as follows.

The repeater 95 is connected to the terminals 1 _{1 to} 1 _n , 2 ₁ to 2 _n , by the repeater controller 91 via the respective control channels by the repeater controller 91. ..20 ₁ to 20 _n ) periodically transmit information such as network switch unique number, repeater controller unique number, and free channel number of voice channel available.

At this time, each of the terminals (1 _{1 to} 1 _n , 2 ₁ to 2 _n , ... 20 ₁ to 20 _n ) is powered by the control unit 48 as shown in FIG. 3. The system and the group number stored in 50) are read and displayed on the display 49, and the dispatch mode or the phone mode is displayed, and the frequency synthesizer 45 is selected by the channel selected by the TRS system. ), The control information from the repeater 95 is received by the control unit 48 through the antenna 51 and the transceiver unit 41.

Is the information received by the high frequency channel unit 1 to 20 of the repeater as a call signal by the control unit 48 of the terminals 1 _{1 to} 1 _n , 2 ₁ to 2 _n , ... 20 ₁ to 20 _n ? In the dispatch call, the speaker 43 of the voice controller 42 receives the voice data, and if the call is a call, the terminal 1 _{1 to} 1 _n , 2 ₁ to 2 _n , ... 20 ₁ The user is notified through the buzzer 46 by adjusting the control unit 48 of ˜20 _n ), and the call is made by the user's off hook.

Referring to the case where the call is made from the terminals 1 _{1 to} 1 _n , 2 ₁ to 2 _n ,... 20 ₁ to 20 _n , first, the user uses the keypad 47 to establish a counterpart terminal 1 _{1 to} 1 _n , 2 _{1. ~2 n, ... 20 1 ~20 n} ) or select a general subscriber telephone subscription to a PSTN, and a frequency synthesizer 45 is then adjusted to the frequency of the control channel, transmits the control data according to the protocol (protocol) The high frequency control unit 21 to 40 of the repeater receiving the received signal analyzes the control signal of the control data and sends it to the repeater controller 91.

The repeater controller 91 transmits the received control signal to the network switch 92 to attempt a PSTN connection if the call is a PSTN subscriber. If the dispatch call is a terminal of the home channel, the terminal receives the home channel. The call is made by calling the terminal having the group call number received through the high frequency channel sections 1-20.

At this time, if the terminal is not the home channel, the dispatch call information is sent to the corresponding high frequency controllers 21 to 40, and the high frequency controllers 21 to 40 call the terminals of the called group call number. By sending data to be a channel having the same frequency as the channel units 1 to 20, the plurality of terminals that receive the call automatically adjust the frequency to a channel having a specified frequency.

As described above, the frequency common communication system according to the related art is used with terminals located in different service zones when terminals of the same group are distributed in two or more service zones when terminals try to communicate with each other through a dispatch call or a PSTN call. Even though the call is not possible and is in the same call group, the call cannot be made with the terminals moving to other service zones, resulting in a problem that the reliability of the frequency common communication system is deteriorated.

The present invention interconnects a node for coordinating the flow of data between the high-frequency channel portion of the repeater, the repeater controller, and the network switch and the network switch in order to solve the above problems, the user of the terminal through these A group call method of a frequency common communication system is provided so that group calls can be made even when a user moves from one service zone to another service zone of a TRS system so that a group call can be made in a multizone. will be.

1 is a terminal channel configuration diagram of a conventional frequency common communication system.

2 is a configuration diagram of a repeater of a conventional frequency common communication system.

3 is a functional block diagram of a conventional frequency common communication system terminal.

4 is a block diagram of a common frequency communication system according to the present invention.

5 is a flowchart of a terminal according to the present invention.

6 is a flowchart of a high frequency channel unit according to the present invention.

7 is a flowchart of a repeater controller according to the present invention.

8 is a flowchart of a network exchange unit according to the present invention.

* Explanation of symbols for main parts of the drawings

1 _{1 to} 1 _n , 2 ₁ to 2 _n , ... 20 ₁ to 20 _n : Terminal channel

1,2, ... 20: high frequency channel part 21,22, ... 40: high frequency control part

41: transmitter 42: voice controller

43: speaker 44: microphone

45: frequency synthesizer 46: buzzer

47: keypad 48: control unit

49: indicator 50: EEPROM

51 antenna 91 repeater controller

93: COMBINER 92: Network Exchanger

94a-94c: Node (NODE) 95: Repeater

In order to achieve the above object, the present invention is possible to check the location of the terminal even if the terminal is located in another repeater service zone of the TRS system, so that a group call can be made, and a plurality of portable terminals and a plurality of repeaters And a group call method of a frequency common communication system composed of a plurality of network switches and a plurality of nodes, wherein the network switch, the repeater controller, the high frequency channel unit, and the terminal transmit and receive control data to and from each other, so that the TRS terminal is serviced by another repeater. When moving to the zone, the unique number of the terminal is characterized in that notified to the network switch.

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

4 is a configuration diagram of a common frequency communication system according to the present invention, and the terminals 1 _{1 to} 1 _n , 2 ₁ to 2 _n ,... 20 ₁ to 20 _{n of} FIG. It is used equally as transmitting and receiving data wirelessly with 1 to 20).

The high frequency channel portions 1 to 20 in FIG. 4 are adjusted by a plurality of repeater controllers 91; 91a to 91k, and the repeater controllers 91 are configured to be adjusted by a network switch 92. The network switch 92 is connected to a plurality of nodes 92a to 94c, and a plurality of combiners 93 are connected to 20 high frequency channel parts 1 to 20 to connect each antenna to one antenna. It serves as a bundle. In addition, the repeater controller 91 adds a multi group call function of a terminal so that a group call can be made in another zone where some terminals are registered among a plurality of terminals grouped in the same group in a single zone. The multi-group call function of the terminal is a flow chart of a terminal according to the present invention of FIG. 5, a flow chart of a high frequency channel section according to the present invention of FIG. 6, a flow chart of a repeater controller according to the present invention of FIG. It shows in the flowchart of the network exchange part by this.

As an embodiment according to the present invention as described above, each terminal (1 _{1 to} 1 _n , 2 ₁ to 2 _n , ... 20 ₁ to 20 _n ) is a high frequency channel portion of the repeater (95: 95a to 95k) One channel (1 to 20) is assigned as a control channel, and in one embodiment, 10 repeaters 95 are configured, but the number of repeaters 95 may not be limited.

Each of the repeaters 95 may be assigned a unique number between 1 and 255, and each terminal may be assigned up to 100 group unique numbers.

Each terminal receives one control channel from the service zone of each repeater 95 and stores the control channel in the EPI rom 50.

First, let's look at the multi-group calling function of the terminal. One of the high frequency channel units 1 to 20 of FIG. 4 is assigned a control channel, and is assigned a specific number of terminals (1 _{1 to} 1 _n , 2 ₁ to 2 _n , ... 20 ₁ ~20 _n) when a part of the terminal moves to a service zone of another repeater capable of serial number registered in the system from the TRS, the particular terminal, as in the fifth flowchart degrees terminal entering into the service zone of a new repeater (95) (step 101 Scan the control channel of the repeater 95 (step 102), if no carry is detected, display NOSVC and ROAM on the display 49 of the terminal (step 104), and then go back to the channel scan (step 102). When the carry signal is detected (step 103), the control data reception from the repeater 95 is confirmed (step 105), and the unique number of the terminal is transmitted to the corresponding repeater 95, thereby The location is registered (step 106).

On the other hand, the high frequency channel unit 1 to 20 of the repeater 95 having received the position registration signal of the terminal receives the position registration signal from the terminal (step 202), and transmits this signal to the repeater controller 91 ( Step 203), and receives the repeater controller 91 determines whether the location registration signal of the terminal (step 301), and confirms whether the terminal belonging to the service of the repeater 95 as a unique number of the terminal, If it is a terminal of its own zone, it transmits a recognition signal for location registration to the corresponding high-frequency channel unit (step 303), transmits a location registration signal to the network switch 92, and if the terminal receives a service from another repeater 95, the network switch ( A location registration signal is transmitted (step 304).

Accordingly, the network switch 92 having received the location registration signal confirms whether the terminal is a location registration signal (step 401), and if it is a registered terminal permitted to be used in the system (step 402), the database of the network switch 92 After storing (step 403) to the repeater controller 91 sends a recognition signal for the position signal (step 404), and sends the location registration data to the network switch (92) (step 405). The network switch 92 is able to determine the location of all the terminals to be serviced, it is possible to determine the location of the terminal in which the call group is formed.

In addition, the position registration recognition signal (404, 303, 306) for the terminal in the network switch (92) and the repeater controller (91) determines whether it is a recognition signal for position registration from the repeater controller (step 204), and then the position registration recognition signal. (Step 205), and the terminals (1 _{1 to} 1 _n , 2 ₁ to 2 _n ,... 20 ₁ to 20 _n ) that have received the message enter the normal operation mode.

At this time, when the user of the terminal selects a call group and makes a group call (step 111) by pressing the keypad 47 and the PTT key, which are the user interface, the terminal receives the high frequency channel part 1 to 20 of the repeater. Move to the free channel given in step 112, the unique number of the network switch 92 selected by the repeater 95, the unique number of the repeater controller 91, and the unique number and function of the high frequency channel unit 1-20. Transmitting data such as a code and its own unique number to the repeater (step 113), and the high frequency channel unit (206) receiving the data transmits the acknowledgment signal and the data received by the repeater controller 91 (step 207). After transmitting a signal indicating that a signal for calling a counterpart terminal has been transmitted (step 208), confirming whether the terminals belonging to the other terminal use a different channel (step 209), and using the other channel, the low-speed data of about 150HZ As, terminals are different Transmitting the null to the repeater controller 91 (step 210), and receiving the relay controller 91 determines whether it is an outgoing signal from the terminal (step 307) and transmits data to the network switch 92 (308). Step).

Meanwhile, the network switch 92 receives the data (step 406), reads the position of the called terminals from the database (step 407), and sends the terminal to the corresponding network switches 92 and the relay controller 91. Transmitting the signal (step 408), the network switch 92 receiving the signal determines whether the call state of the terminal (step 409) sends a call signal to the corresponding repeater controller 91 (step 410), The repeater controller 91 having received the call signal of step 309 transmits data to the corresponding high frequency channel (step 310), and the high frequency channel units 1 to 20 determine whether the call is a terminal (step 213). The call signal is transmitted (step 215), and the terminal receiving the call signal opens the audio path of the terminal after moving to the call channel (steps 109 and 110).

In this case, if the user releases the PTT key (step 115) of the terminal on which the call was made, the terminal (1 _{1 to} 1 _n , 2 ₁ to 2 _n , ... 20 ₁ to 20 _n ) releases the PTT (off). After transmitting the signal (step 116), the high-frequency channel unit 1 to 20 of the repeater 95 receives the signal after confirming the PTT off of the terminal (step 211), and transmits that the high-frequency channel is idle (step 212). The PTT off signal is transmitted to the repeater controller 91 (step 214), and the repeater controller 91 receives the PTT off data (step 311), and transmits the PTT off data to the network switch 92 (step 312).

In addition, the network switch (step 411) receiving the PTT off signal retrieves the corresponding network switch 92 and the repeater controller 91 from the database and transmits the PTT off signal to the corresponding network switch 92 and the repeater controller 91. In step 412, the network switch 92 receiving the signal transmits the PTT off signal to the repeater controller 91 (step 414), and the repeater controller 91 of the calling terminal If it is determined that the PTT off signal is applied (step 313), the data is sent to the corresponding high frequency channel parts 1 to 20 (step 314), and the high frequency channel parts 1 to 20 are turned off from the repeater 95. It is determined whether the data is applied (step 216), and the high frequency channel unit is released from the call state by notifying that the PTT is off and the calling terminal (step 217).

On the other hand, the counterpart terminal belonging to the multi-zone group in the service zone of the other repeater 95 must press the PTT key within a certain time to answer the response, and if the PTT switch is pressed after a certain time, the Tiki zone group The group call number selected before the call is sent.

As described above, the present invention provides a service zone by connecting a plurality of nodes for controlling data flow between the high frequency channel part of the repeater, the repeater controller, and the network switch and the network switch. ), Even if some of the specific terminals assigned to the same group move to another service zone where they can be registered, there is an advantage that they can make the same call with the same group terminals in a single zone, so that the terminal can register the service zone of another repeater. Even if it is located at, it is possible to contribute to improving the reliability of the frequency common communication system by not being restricted by the group call.

Claims (5)

In a group call method of a frequency common communication system consisting of a plurality of portable terminals, a plurality of repeaters, a plurality of network switches, and a plurality of nodes, the network switch, the repeater controller, the high frequency channel unit, and the terminal control data and position each other. And transmitting and receiving registration data, when the terminal moves the service zone of the repeater, informing the network switch to which the terminal belongs to the terminal to which the terminal belongs. The network switch of claim 1, wherein the network switch confirms whether the terminal is registered in the terminal, and if it is determined that the terminal is registered, the network switch stores it in the database of the network switch and sends a recognition signal for the position signal to the relay controller and the network switch. The network switch receiving the location registration data from the relay controller and receiving the terminal originating signal from the repeater controller reads the position of the called terminals from the database and transmits the originating signal of the terminal to the corresponding exchange and the relay controller. The network switch determines the call state of the terminal to send a call signal to the repeater, and when the pit off signal is received from the calling terminal in the process, transmits a pit off signal to the network switch and receives the received signal. One network switch sends a PITITY OFF signal to the repeater controller. A group calling method of a frequency common communication system, characterized in that for performing the determination. The terminal of claim 1, wherein the repeater controller confirms whether the terminal is a location registration signal, and in the case of a terminal of its own zone, sends a recognition signal to the corresponding high frequency channel and transmits location registration data to the network switch. Transmitting the location registration data only to the exchange, confirming whether the registration signal is recognized by the network switch, transmitting the location registration data to the corresponding high frequency channel, and receiving a signal indicating that another channel is in use from the terminal. Receiving and confirming through the network switch, sending this data to the network switch, receiving and determining the call data of the terminal from the network switch, sending the data to the corresponding high-frequency channel unit, and a fitness off signal of the calling terminal. Determining whether or not, sending this data to the network switch, and turning off the fitness of the calling terminal. A method for calling a group in a common frequency communication system, characterized in that it determines whether or not a signal and transmits this data to the corresponding high frequency channel. The method of claim 1, wherein the high frequency channel unit checks whether the location registration signal is received from the terminal, sends the data to the repeater controller, and transmits the location registration recognition signal of the terminal and the location registration recognition data of the network switch from the repeater controller. Checks, transmits the location registration recognition signal to the terminal, checks the group call request utility signal of the terminal, sends the recognition signal to the terminal and sends this data to the repeater controller, and transmits the call signal to the terminal. Transmits the call, checks whether the mobile terminal is using another channel, sends this data to the repeater controller at a low speed of 150 Hz, checks whether the terminal is a release signal, and transmits the high frequency channel to the terminal. To send the PITTI OFF signal to the repeater controller, and to the repeater controller. Whether the received signal is a call signal of the terminal, transmitting a call signal to the terminal, making a call, checking whether the signal applied from the repeater controller is a fitness off signal of the terminal, and the high frequency channel is idle. The group calling method of the public frequency communication system, characterized in that for performing the process of transmitting. The terminal of claim 1, wherein the terminal scans a plurality of control channels in the service zone of the repeater, and if no carry is detected, displays the no service and the ROHM on the display and returns to the channel scan, and if the carry is detected, data from the repeater is detected. Transmitting the unique number of the terminal to the high frequency channel unit, checking the position registration recognition signal of the terminal through the repeater controller from the high frequency channel unit and confirming whether the terminal call signal is received, and the user Check the Piti operation signal requesting the call, move to the free channel granted by the high frequency channel unit, and select the network switch unique number selected by the repeater, the repeater unique number, the high frequency channel unit unique number and function code, and its own unique number. Transmitting the corresponding data to the repeater, and transmitting the terminal from the high frequency channel unit. For recognition signal is confirmed by the group call method of a trunked communication system, characterized by carrying out the process of the call.