KR20050058952A - Method of advanced call processing procedure for mobile communication system - Google Patents

Abstract

The present invention is to correctly process the call connection by checking the operation state of the mobile terminal by the periodic alarm command signal in the base station of the mobile communication system, when the mobile terminal receives an alarm signal from the base station in idle state A called process for outputting a and determining whether a communication key is input; An alarm process of transmitting an estee off signal, setting a timer, and determining whether an alarm command of the base station has been received when a communication key is input in the process; Characterized in that the communication process proceeds and terminates when the alarm command of the base station does not receive the alarm command in the alarm process, and, the idle process that the base station is idle without communicating with the mobile terminal; A paging process of paging a mobile terminal of the process and sending an alarm signal or an alarm information signal to the mobile terminal if a response is received; The base station of the process has an effect of accurately performing the call connection processing of the mobile terminal by the call connection process of processing the communication path connection call of the mobile terminal when receiving the EST-ON signal and the EST-OFF signal for a predetermined time from the mobile terminal. have.

Description

Advanced call connection signal processing method of mobile communication system {METHOD OF ADVANCED CALL PROCESSING PROCEDURE FOR MOBILE COMMUNICATION SYSTEM}

The present invention accurately handles a mobile terminal call connection in a mobile communication system. In particular, since an ALERT ORDER signal is periodically generated by a base station to recognize an estee on / off signal of a mobile terminal, the call connection process is accurately performed. An advanced call connection signal processing method of a mobile communication system.

The mobile communication system is wirelessly connected to a base station (BS) that is monitored and controlled by a mobile switching station (MSC) while the mobile terminal (MS) is freely moving in the service area. Communicate with your partner instantly from anywhere.

In addition to communication signals, various control signals are transmitted and received between the base station BS and the mobile terminal MS in the mobile communication system. Use Tone signal of.

The tone is used for signal processing of the AMPS-type mobile communication system, and a tone includes a SAT (SUPPERVISORY AUDIO TONE) signal and an ST (SIGNALING TONE) signal, and is formed between the base station and the mobile terminal by various combinations of the tone signals. Process the control signal.

The SAT signal is generated by both the base station BS and the mobile terminal MS. The SAT signal uses one of frequency signals of 5970 Hz, 6000 Hz, and 6030 Hz, and is set in a forward direction set by the base station BS. FORWARD and REVERSE VOICE CHANNEL are used as a signaling means to confirm that the mobile terminal MS is in communication.

The ST signal is a tone signal generated only by the mobile terminal MS and transmitted to the base station BS. The ST signal is used together with the SAT signal and has a length and an ON / OFF state. It is used for control signals such as CONFIRM ORDER, SIGNAL FLASH REQUESTS and SIGNAL RELEASE REQUEST.

For example, when the MS transmits the SAT and ST signals to the BS for 1.8 seconds, the MS terminates the call. For example, a request for a handoff is sent when a message is sent for 50 milliseconds (ms), and various kinds of control signals are generated by the above combinations to indicate various alerting, recognition, call status, and the like.

That is, in the AMPS system using the SAT and ST signals, the mobile station MS and the base station BS are used as a control signal or a signal signaling the status of each other.

For example, the call processing signal SIGNALING, when the mobile terminal MS outputs SAT and ST signals for at least 500 milliseconds (ms), is recognized by the base station (BS) and connected to the call connection. Call state is established by connecting the call channel.

However, in the conventional call processing signal (SIGNALING) method, when the distance between the base station BS and the mobile terminal MS becomes far, the base station does not recognize the signal of the mobile terminal MS whose output is weak and the call is connected. Since there is a case where the processing is not performed, there is a need to develop a technique for solving such a problem.

Hereinafter, a method for processing a call connection signal of a conventional mobile communication system will be described with reference to the accompanying drawings.

1 is a functional configuration diagram of a general mobile communication system, FIG. 2 is a call connection state transition diagram of a general portable terminal, and FIG. 3 is a call of a base station and a portable terminal according to the prior art. 4 is a flowchart of a call connection signal processing of a mobile terminal according to the prior art, and FIG. 5 is a flowchart of a call connection signal processing of a base station according to the prior art.

Referring to FIG. 1, a function of a general mobile communication system will be described. The mobile terminal (MS) 10 is configured to fill a service area formed by a base station (BS) 20 of a registered and registered mobile communication system. Move freely and communicate instantly with the other party anytime, anywhere.

The BS 20 communicates wirelessly with the MS 10 through a channel set for call processing, and uses an SAT signal and an ST signal for the call processing. .

The base station 20 transmits / receives a communication signal with the wireless terminal 10 connected wirelessly and simultaneously forms a service area. In general, the base station 20 forms a whole country as a service area by a plurality of consecutive numbers. It is operated by the control and monitoring of (30).

The MSC 30 controls the base station 20 to wirelessly connect with the MS 10 and analyzes a call connection request signal input from the MS 10. Since the switching (SWITCHING) process to set the communication path, the communication proceeds through the set communication path.

Hereinafter, a call connection state transition of a general portable terminal will be described with reference to FIG. 2.

In the idle state, the mobile terminal 10 accesses a temporary channel allocated by the base station 20 through the operation of a temporary channel task (CONFIRM INITIAL VOICE CHANNEL TASK), and paging (PAGE RESPONSE) of the base station 20 through the temporary channel. AWESS FOR ORDER TASK is operated in response to ACCESS.

When the mobile terminal 10 receives the alarm / alarm information signal from the base station 20 while operating the command task (WAITING FOR ORDER TASK), the mobile terminal 10 generates a ringing signal and responds to the task (WAITING FOR ANSWER TASK). In operation, it is determined whether a communication key signal in response to a call is input from the user within at least 500 milliseconds (ms).

The mobile terminal 10 transmits the input communication key signal to the base station 20 and transmits a communication task (CONVERSATION TASK) when a communication key signal corresponding to a call is input within at least 500 milliseconds (ms) from the user. Communication is in progress.

Hereinafter, a call connection signal flow between a base station and a mobile terminal according to the prior art will be described with reference to FIG. 3.

The base station (BS) 20 allocates a temporary channel for transmitting a control signal to the mobile terminal (MS) 10, and pages the mobile terminal 10 through the temporary channel (ST10), the paged The portable terminal 10 operates a command task (ST20).

The base station 20 transmits an alarm signal or a ringing signal and an alarm information signal including a calling party number to generate a ringing signal by calling the paged mobile terminal 10 (ST30). Since the terminal 10 outputs the ST signal in the ON state, the terminal 10 responds to the reception of the alarm / information signal (ST40) and operates the response task (ST50).

When the user wants to communicate in response to the ringing bell signal, the user of the portable terminal 10 inputs a corresponding communication key (ST60), and the portable terminal 10 signals that the communication key has been input in response to an ST OFF signal. Is transmitted to the base station 20 (ST70).

The portable terminal 10 that has transmitted the ST OFF signal as described above operates the communication task without confirming the operation state of the base station 20 (ST80), and the base station 20 and the portable terminal 10 ) And communicates through the established voice channel (ST90).

That is, when the mobile terminal 10 inputs a communication key while operating the response task, the mobile terminal 10 notifies the base station 20 of the estee off signal to one side and communicates with the communication task operation.

However, when the distance between the base station 20 and the mobile terminal 10 is too far, and the ST-OFF signal transmitted from the mobile terminal 10 to the base station 20 is not transmitted, the mobile terminal ( Although 10) is operated in the communication mode, the base station 20 does not input the ST-OFF signal from the mobile terminal 10 and thus does not operate in the communication mode.

Hereinafter, a call connection signal processing procedure of a mobile terminal according to the prior art will be described with reference to FIG.

When the mobile terminal 10 receives an alarm / alarm information signal from the base station 20 in an idle state that is not used for communication (S10) (S20), an incoming ring signal is generated and called. At the same time, it displays the ST ON signal to the base station and returns an incoming ring signal (S30).

The portable terminal 10 determines whether a communication key to be communicated with a user is input by an incoming ring signal (S40), and when the communication key is input in the determination (S40), the STB is turned off to the base station 20 (ST). OFF) a signal is transmitted (S50), and communication is performed (S60).

However, according to the related art, when an incoming call signal is generated in the mobile terminal 10 and a communication key is input for communication, an estee off signal is transmitted to the base station 20, and the base station 20 transmits an estee off. It does not check whether the signal is received correctly.

That is, since the mobile terminal 10 transmits the estee off signal to the base station 20, the mobile terminal 10 unilaterally operates the communication mode, and the base station 20 has not received the estee off signal from the mobile terminal 10. There is a problem that the call connection is terminated by the base station 20 after a predetermined time elapses without assigning a communication channel.

Hereinafter, a call connection signal processing procedure of a base station according to the prior art will be described with reference to FIG. 5.

The base station (BS) 20 determines whether there is a response from the mobile terminal 10 called by paginating in an idle state S100 that does not communicate with the mobile terminal MS 10. In operation S110, when there is a response from the paged mobile terminal 10 in the determination S110, an ALERT signal or an ALERT WITH INFORMATION signal is transmitted to the mobile terminal 10 (S120). .

After receiving the ST ON signal from the mobile terminal 10 and for a predetermined time, for example, at least 500 milliseconds (ms) or more, the ST ST signal is received from the mobile terminal 10. It is determined whether the detection (S130).

When the ST OFF signal is received from the mobile terminal 10 in the determination (S130), the base station 20 performs a call connection process for establishing a communication path, so that the caller and the mobile terminal 10 communicate with each other. Proceed (S140).

In addition, when the determination (S130) does not receive the Estee OFF signal from the mobile terminal 10, it is determined whether at least 500 milliseconds (ms) has elapsed (S150), at least 500 milliseconds in the elapsed determination (S150) If this has not elapsed, the process returns to the determination step S130, and if so, the call connection process ends.

Accordingly, the conventional method for operating a base station as described above has a problem in that communication cannot be performed because the call connection process is terminated when the estee off signal is not detected from the portable terminal for a predetermined time.

According to the present invention, since the base station and the mobile terminal of the mobile communication system is far away or the transmission output power state of the mobile terminal is unstable, the base station does not recognize the estee off signal for notifying the operation state, so that the call connection processing is not performed. It is an object of the present invention to provide an advanced call connection signal processing method of a mobile communication system which complements an alarm command signal of a predetermined period so that call connection processing is performed accurately.

The present invention has been made in order to achieve the above object, in the call connection processing of the mobile terminal for mobile communication; The mobile terminal outputs an Estonia signal when it receives an alarm signal from the base station in an idle state and determines whether a communication key is input; An alarm process of transmitting an estee off signal, setting a timer, and determining whether an alarm command of the base station has been received when a communication key is input in the process; In the alarming process, if the alarm command of the base station is not received, the communication process proceeds and ends.

In addition, the present invention devised to achieve the above object, in the call connection processing of the base station under the control of the mobile switching center; An idle process in which the base station is in an idle state without communicating with the mobile terminal; A paging process of paging a mobile terminal of the process and sending an alarm signal or an alarm information signal to the mobile terminal if a response is received; The base station of the process comprises a call connection process of processing the communication path connection call connection of the mobile terminal when receiving the Estee On signal and the Estee off signal for a predetermined time.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an advanced call connection signal processing method of a mobile communication system will be described with reference to the accompanying drawings.

6 is an advanced call connection signal flow diagram of a mobile communication system according to the present invention, and FIG. 7 is an advanced call connection signal processing method flowchart of a mobile terminal according to the present invention. 8 is a flowchart of an advanced call connection signal processing method of a base station according to the present invention.

Referring to FIG. 6, in the advanced call connection signal flow of the mobile communication system according to the present invention, the base station (BS) allocates a temporary channel to the mobile terminal (MS), the mobile terminal by calling from the other party A PAGING signal for calling (MS) is output (ST100).

The mobile terminal (MS) operates a command task for receiving and processing a control command of the base station (BS) (ST110), the base station (BS) is the alarm information signal including the calling alarm signal or caller number signal is The data is transmitted to the mobile terminal MS (ST120).

The portable terminal (MS) generates an incoming ring signal according to an alarm signal, and transmits an ST ON signal to the base station BS as a response signal indicating that the incoming ring signal has been generated (ST130). In response to the response task is operated (ST140).

When a communication key to be communicated is input in response to an incoming call made by the user of the mobile terminal (MS) or the like (ST150), the STST signal for responding to the call is transmitted to the base station (ST170).

For example, when the distance between the mobile terminal BS and the base station MS is too long or a failure occurs in the wireless signal output of the mobile terminal BS, the base station MS does not recognize the estee off signal. For example, the MS repeatedly transmits the alarm command signal to the mobile terminal MS repeatedly at a predetermined cycle in a time range of at least 500 ms (ms) (S160).

The mobile terminal MS, having received the alarm command signal of step ST160, recognizes that the base station BS has not received the ST OFF signal, and retransmits it (ST170).

That is, when the base station BS does not receive the estee off signal from the mobile terminal MS, the base station BS transmits an alarm command signal that is repeated at a predetermined period in a predetermined time range, so that the base station BS recognizes the estee off signal. Try to send again.

As described above, the mobile terminal MS which has transmitted the ST OFF signal operates a communication task for communication (ST180), and the base station BS performs the communication task by the mobile terminal MS in a state transition. Since it is recognized that the device is in operation, a predetermined periodic warning command signal is transmitted to the mobile terminal (ST190).

Since the mobile terminal MS, which has received the alarm command signal of the base station BS, transmits an ST ON signal to the base station BS, the base station BS performs call connection processing to perform communication (ST210). When the communication is completed, the ST-OFF signal is transmitted to the base station BS by the mobile terminal MS (ST220), and the communication is terminated.

The call connection signal flow according to the present invention having the above-described configuration outputs an EST on / off signal for notifying the state (STATE) conversion of the mobile terminal by an alarm command signal transmitted from the base station to the mobile terminal at regular intervals. Do it.

Therefore, even when the distance between the base station and the mobile terminal is too long or a problem occurs in the performance of the wireless transmission output unit of the portable terminal, the call connection signal processing is correctly performed.

Hereinafter, an advanced call connection signal processing method of a mobile communication system portable terminal according to the present invention will be described with reference to FIG.

In the call connection processing of the mobile terminal for mobile communication, when the mobile terminal MS receives an alarm signal from the base station BS in an idle state, it outputs an ST ON signal and determines whether a communication key is input. In step S200, the mobile terminal MS is operated in an idle state without waiting for communication. Determining whether the mobile terminal MS of step S200 receives an alarm signal or an alarm information signal from the base station BS (S210); The mobile terminal MS of the step S210 may include generating a ringing bell signal in response to receiving an alarm signal or an alarm information signal and transmitting an ST ON signal to the base station BS (S220); The mobile terminal MS of the process S220 includes a called process comprising a process of determining whether to input a communication key for starting communication by an incoming call signal (S230);

When the communication key is input in the called process, an estee off signal is transmitted, a timer is set, and an alarm command of the base station is received. When the communication key is input to the mobile terminal in the called process, the estee is turned off (ST OFF). Transmitting a signal to a base station (BS) (S240); The mobile terminal MS of step S240 may include setting and operating a timer of a predetermined time (S250); The mobile terminal MS of the process S250 includes an alarm process consisting of a process of determining whether an ALERT ORDER signal is received from the base station BS (S260),

A communication process (S290) of proceeding with communication and ending when the alarm command of the base station (BS) is not received in the alarm process;

When receiving the alarm command of the base station (BS) in the alarm process (S260), periodically generates the ST ON signal and ST OFF signal and when the set time of the timer is not completed In step S270, the mobile terminal MS generates an estim on signal and an estim off signal at regular intervals when the mobile terminal MS receives an alert order of the base station BS; It is determined that the time of the set timer is completed, and if it is not completed is returned to the alarm process (S260), and when it is completed consists of a confirmation process consisting of the process of ending (S280).

The advanced call connection signal processing method of the mobile communication system portable terminal according to the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

In the idle state where the portable terminal MS is not operated for communication or additional services (S200), alarm information including an alarm signal or caller ID confirmation information for generating a ringing signal by calling and paging is called. It is determined whether is received from the base station (S210).

When receiving the alert / information signal from the base station in the determination (S210), the mobile terminal BS transmits an ST ON signal as a response signal to the base station BS, and communicates with the communication key by the user of the mobile terminal. It is determined whether a button signal is input (S230).

When the communication key button signal is input in the determination (S230), the ST-OFF signal is transmitted, thereby notifying that the operation state of the mobile terminal MS has been changed to the communication mode (S240) and counting a predetermined time. Set to drive (S250).

In order to reliably maintain the communication state of the call connection before operating in the communication mode, the portable terminal MS determines whether an alarm command signal is received from the base station (S260), and in the determination (S260). If the alarm command signal is not received, the communication proceeds (S290), and when the alarm command signal is received, it transmits the Estee on signal and the Estee off signal of a certain period to the base station (S270), and determines whether the set timer time is over. In step S280, if the set time of the timer is not completed in the determination S280, the controller returns to the alarm process S260, and ends when it is completed.

That is, according to the present invention having the above configuration, when the Estim ON / OFF signal for notifying the base station of the operation state change by the mobile terminal is not recognized by the base station, the alarm command signal received from the base station is not received. Since the Estee On / Off signal is transmitted repeatedly, the call connection signal processing is performed correctly.

Hereinafter, an advanced call connection signal processing method of a mobile communication system base station according to the present invention will be described with reference to FIG.

In the call connection processing of the base station (BS) under the control of the mobile switching center, the base station (BS) is not in communication with the mobile terminal (MS) and idle (IDLE) state of idle state (S310),

Paging the mobile terminal MS of the idle process S310 and if there is a response, transmits an alarm signal or an alarm information signal to the mobile terminal MS, and transmits the mobile terminal MS to the mobile station MS. Determining whether the MS responds to the paging call, and returning to the idle process S310 if it does not respond (S320); If the mobile terminal (MS) in response to the paging (PAGING) in the step (S320) and the paging process consisting of the step of transmitting an alarm signal or an alarm information signal (S330),

When the base station BS of the paging process receives an Estée signal and an Estée Off signal from the portable terminal MS for a predetermined time, the base station BS processes the communication path connection call connection of the portable terminal MS. Determining whether the EST-ON signal and the EST-OFF signal are received from the receiver for a predetermined time (S340); Call connection process consisting of a call connection process (S360) because the communication path is connected when the ESTON signal and the EST-OFF signal is determined in the step (S340),

If the call connection process (S340) does not receive the EST-ON signal and the EST-OFF signal from the mobile terminal (MS) to the complementary process (S350) to periodically transmit an alert command (ALERT ORDER) signal to the mobile terminal (MS) It is composed.

Hereinafter, the present invention having the above configuration will be described in detail with reference to the accompanying drawings of an advanced call connection signal processing method of a mobile communication system base station.

The base station BS of the mobile communication system determines whether a signal in response to paging for paging is received from the mobile terminal MS in an idle state not communicating with the mobile terminal MS (S320). In operation S320, when a signal corresponding to paging is received from the mobile terminal, an alarm signal for generating an incoming call or an alarm information signal including caller number information is transmitted to the mobile terminal (S330).

It is determined whether an Esté on / off signal is received from the portable terminal which has received the alarm signal (S340), and if the Esté On / Off signal is received in the determination (S340), call connection processing is performed. The communication path is set (S360), and if the Estee on / off signal is not received in the determination (S340), the alarm command signal is periodically transmitted and the process returns to the step (S340).

That is, the base station repeats the alarm command signal at a predetermined period for a predetermined time period, for example, 1000 milliseconds (ms), when the Estee on / off signal is not received from the mobile terminal to notify that the state has been changed and operated. To make sure that the call connection process is performed reliably.

The present invention having the above-described configuration generates an alarm command signal until the base station recognizes the Esté on / off signal for notifying a state change from the portable terminal, and thus has an industrial use effect of accurately making a call connection process of the portable terminal.

In addition, even when the mobile terminal is remote from the base station or a failure occurs in the wireless transmission output terminal, it is easy to use because the call connection is correctly performed because it transmits an Esté On / Off signal notifying the state transition until the base station recognizes the alarm command signal. It works.

1 is a functional configuration diagram of a general mobile communication system,

2 is a diagram illustrating a call connection state of a typical mobile terminal;

3 is a flow diagram of a call connection signal between a base station and a mobile terminal according to the prior art;

4 is a flow chart of a call connection signal processing of a portable terminal according to the prior art;

5 is a flow diagram of a call connection signal processing of a base station according to the prior art;

6 is an advanced call connection signal flow diagram of a mobile communication system according to the present invention;

7 is a flowchart of an advanced call connection signal processing method of a mobile terminal according to the present invention;

8 is a flowchart of an advanced call connection signal processing method of a base station according to the present invention;

          ** Explanation of symbols on the main parts of the drawing **

10: mobile terminal 20: base station

30: mobile switching center

Claims (9)

In call connection processing of a mobile terminal for mobile communication, When the portable terminal receives an alarm signal from the base station in the idle state, the mobile terminal outputs an Esteon signal and determines whether a communication key is input; An alarm process of transmitting an estee off signal, setting a timer, and determining whether an alarm command of a base station is received when a communication key is input in the process; An advanced call connection signal processing method of a mobile communication system, characterized in that the communication process proceeds and ends the communication when the alarm command of the base station is not received in the alarm process. According to claim 1, When receiving the alarm command of the base station in the alarm process, it characterized in that it further comprises a confirmation process for generating the Estee On signal and Estee off signal periodically and the feedback process to the alarm process when the set time of the timer is not completed Advanced call connection signal processing method of a mobile communication system. The method of claim 1, wherein the called process, Operating the mobile terminal in an idle state without waiting for communication; Determining whether the portable terminal of the process receives an alarm signal or an alarm information signal from a base station; The mobile terminal of the above process is to generate an incoming ring signal in response to receiving the alarm signal or the alarm information signal and to transmit the Esteon signal to the base station; The portable terminal of the process comprises the step of determining whether to input the communication key to start the communication by the ringing bell signal advanced call connection signal processing method of a mobile communication system. The method of claim 1, wherein the alarm process, Transmitting an estee off signal to the base station when a communication key is input to the mobile terminal in the called process; The mobile terminal of the process of setting and operating a timer of a predetermined time; The mobile terminal of the process comprises the step of determining whether the alarm command signal is received from the base station advanced call connection signal processing method characterized in that the mobile communication system. The method of claim 2, wherein the checking process, Generating an ESTON signal and an ESTOFF signal at regular intervals when the portable terminal receives an alarm command from a base station; Determining whether the set timer is completed, and if not, returns to the alarming process and terminates when the timer is completed. In call connection processing of a base station under mobile switching center control, An idle process in which the base station is in an idle state without communicating with the mobile terminal, A paging process of paging a mobile terminal of the process and sending an alarm signal or an alarm information signal to the mobile terminal if there is a response; The base station of the process comprises a call connection process for processing the communication path connection call of the mobile terminal when receiving the EST-ON signal and the EST-OFF signal for a predetermined time from the mobile terminal. Way. The method of claim 6, When the call connection process does not receive the EST-ON signal and the EST-OFF signal from the mobile terminal, an advanced call connection of the mobile communication system, characterized by further comprising a supplementary process of periodically sending an alarm command signal to the mobile terminal. Signal processing method. The method of claim 6, wherein the paging process, Determining, by the base station, whether the mobile terminal responds to a paging call; if not, returning to the idle process; And a step of transmitting an alarm signal or an alarm information signal when the mobile terminal responds to the paging. The method of claim 6, wherein the call connection process, Determining whether an Estee On signal and an Estee Off signal are received from the portable terminal for a predetermined time; The call connection signal processing method of the mobile communication system, characterized in that the call connection processing is performed because the communication path is connected when the Estim ON signal and the Estim OFF signal is received in the process.