JPH04100330A - Mobile radio line control system - Google Patents

Abstract

PURPOSE:To attain quick and sure restoration at a fault of dial connection control by allowing a connection controller to send a signal for starting the restoration to parallel processing systems simultaneously after on-hook by a caller and a called party is confirmed. CONSTITUTION:A base station or an exchange informs interrupt of processing to a connection controller. The connection controller gives a command to the base station such that the base station should send a message urging on-hook to a portable telephone set and gives a command to the exchange such that the exchange should send a message urging on-hook to a called party. Then the base station informs an on-hook of the caller and the exchange informs the on-hook of the called party to the connection controller respectively. The connection controller sends a restoration signal to each parallel processing system to give a command of starting the interruption of the processing and of restoring the state to a state before the processing operation start to each parallel processing system. Thus, quick and sure restoration after the connection of the communication is implemented and the convenience of the user, operability and the reliability of the system are improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mobile radio line control system, and in particular, the present invention relates to a mobile radio line control system, and in particular, when starting a call connection, the address and additional information of the communication partner are simultaneously sent together with the mobile station identification number 4. Then, the process of collating, confirming, and managing subscriber information using the mobile station identification number, setting up the wireless line, and controlling the communication connection are performed in parallel, and the communication line is set up only when positive responses are returned from all processing systems. The present invention relates to means for recovery when call connection control fails in a mobile radio system that starts a communication operation.

[Conventional technology]

The concept of a telephone network (PIDli concept), which makes it possible to provide telephone services on an individual basis by separating and using a personal number (PID number) and telephone number (SID number), has led to the realization of mobile phones. This is being considered as one of the approaches to achieving this goal.

As one type of mobile phone system using this PID, a local mobile phone system with multi-channel access having multiple zones has been considered. In this mobile phone system, in order to provide a quick and reliable call connection procedure and improve the user's operability and convenience as well as the reliability of the system, the first
The applicant of the present invention has proposed a line control system having the configuration shown in the figure and operating in the call connection operation sequence shown in FIG. 2 (Japanese Patent Application No. 2-126651).

In FIG. 1, 1 is a mobile phone, 2 is a base station, 3 is a connection control device, 4 is an ID center, 5 is an exchange, 6 is a fixed telephone network, and 7 is a fixed telephone. ~■ and (a) ~ (tsu) correspond to the same numbers etc. in the following explanation.

In the above-mentioned line control system, first, at the start of a call connection, the address of the communication partner and other additional information are simultaneously sent together with the mobile station identification number. Next, the connection control device distributes and sends processing tasks to the base station, ID center, and exchange, processes wireless line settings, verifies, confirms, and manages subscriber information using mobile station identification numbers, and communicates. Processing of connection control is performed in parallel (in Japanese Patent Application No. 2-126651, the processing of wireless line setting is performed in the wireless line setting section in the connection control device, but here, this function is transferred to the base station. ). Therefore, only when a positive (successful) response is returned from all processing systems, all processing systems are finally notified of the completion of the processing (commitment), and a communication line is set up between the calling party and the called party. and starts communication connection operation. In this way, if the so-called two-phase commitment protocol is adopted for the call connection procedure, the processing time is short due to parallel processing, and the reliability of the connection control process is high due to response confirmation, so it can be done quickly. Moreover, reliable call connection operation can be provided.

The connection operation sequence in this case is shown below.

■ When the mobile device goes off-hook after confirming that it is within the range of the base station, the transmitter turns on and either sends a dial tone or
or display “Available to Dial”.

■ Input the telephone number, media identification, etc. address of the communication partner by dialing and temporarily store it in the memory of the mobile device. At this time, additional information such as the identification number (PID number) of the originating mobile station and the presence of a secret function are also stored.

■ Send a calling signal via the control channel.

■ The main body of the connection control device requests the following from each processing system in parallel.

(a) Request the base station inside the connection control device to set up a communication channel.

Here, the wireless line setting work is done, but the procedure is (
A) to (a) are shown below.

(a) Turn on the transmitter, send a call response signal (including designation of the call channel number) via the control channel, and switch to the designated call channel.

(b) When a call response signal is detected, the communication channel is switched to the designated communication channel, and after confirming that the channel is empty, a channel switching completion signal is sent out.

(1) Upon receiving the channel switching completion signal, the base station turns on the transmitter of the designated call channel, checks for the presence of interference waves, and if the mobile phone does not detect interference waves, sends out an interference wave distortion detection signal. do.

(b) Send the PID number to the ID center and request verification, confirmation, and management of subscriber information using the PID number.

(C) Sends the address of the communication partner to the exchange and controls the communication connection.

■ Notify the end of wireless line settings.

■ Notify the completion of subscriber information collation, confirmation, and management processing at the ID center.

■ Notify the end of communication connection control.

■ When all processing systems return responses indicating completion of processing,
Notify all processing systems of completion of processing.

■ At the same time as sending an audio circuit ON signal to the mobile phone, a communication connection request is notified to the exchange.

[Phase] Sends a ring tone.

■ When the called party lifts the handset, the telephone sends an off-footer signal.

[Problem to be solved by the invention]

In the conventional control method as described above, if the connection process is interrupted for the following reasons after the communication line is connected, that is, after the above connection operation sequence [phase] (sending of the ring tone), the call origination and A problem arises in which a user who is in the process of receiving a call is unable to communicate even though the ring tone sounds but there is no response.

(a) When all communication channels become unusable due to interference.

(b) When the calling mobile device moves out of the service area due to movement of the calling party.

(C) When communication connection control is interrupted due to a failure of the exchange or a line failure between the exchange and the called party on the landline telephone.

In view of these conventional problems, the present invention provides a mobile radio line control system that employs a two-phase commitment protocol call connection procedure, which provides a quick and reliable recovery when connection control fails after setting up a communication line. The purpose is to provide operating procedures and improve user convenience and operability as well as system reliability.

[Means to solve the problem]

According to the invention, the above-mentioned object is achieved by the means specified in the claims.

That is, the present invention simultaneously sends the address and additional information of the communication partner together with the mobile station identification number at the time of starting a call connection, and performs processing for collating, confirming, and managing subscriber information using the mobile station identification number, and processing of wireless line communication. In a mobile radio system in which setting and communication connection control processing are performed in parallel, and when a positive response is returned from all processing systems, a communication line is set up and communication operation is started, after the communication line is set up during a call connection operation, If connection control fails due to a failure or the like, the connection control device returns a message to the caller via the control channel according to the details of the processing failure and instructs the caller to go on-hook. At the same time as sending the above message, the system is equipped with a function to return a message to the called party via the exchange depending on the details of the processing failure, instructing on-hook, and to send an on-hook message to the calling party and the called party. After confirmation, this is a mobile radio line control method in which the connection control device sends a signal to all the parallel processing systems to start the recovery operation, interrupts the processing operation, and controls the parallel processing system to restore the state to the state before the start of the processing.

[For production]

In the system of the present invention, if connection control fails due to a failure of the exchange or failure of the communication line after the communication line is set up, in the recovery operation method of the present invention, the connection control device first sends the control channel to the calling party. A message corresponding to the details of the processing failure is returned to the called party via the exchange, and an on-hook instruction is sent to the called party. After confirming that the calling party and the called party are on-hook, the connection control device simultaneously sends a signal to the parallel processing system to start the recovery operation, interrupts the processing operation, and restores the state to the state before the start of the processing. In this way, since the recovery operation is performed after instructing the calling and receiving users to turn on the footer, convenience and operability for the users are not impaired.

〔Example〕

FIG. 3 is a diagram illustrating an embodiment of the present invention, and after the communication line is connected (that is, after the connection operation sequence [phase] "sending ring tone" of FIG. 2), for the following reason. 7 shows a recovery operation sequence of the present invention when connection processing is interrupted. [Phase] and ■ in the figure correspond to those in FIG. 2, and (1) to Oa1 correspond to the description numbers in the following explanation.

- When all communication channels become unusable due to interference.

- When the calling mobile device moves out of the service area due to the caller moving.

- When communication connection control is interrupted due to a failure of the exchange or a line failure between the exchange and the called party on the landline telephone.

The recovery operation of the present invention will be explained below using FIG.

(1) The base station or exchange notifies the connection control device of processing interruption.

(2) The connection control device confirms the details of the processing failure and simultaneously instructs the base station and switching equipment to do the following.

(a) Instruct the base station to send a message to the mobile phone indicating the details of the processing failure and prompting the user to operate the on-footer.

0)) Instructs the exchange to send a message to the called party explaining the details of the processing failure and prompting him to operate the on-footer.

(3) The base station sends the above message to the mobile phone via the control channel and instructs the caller to go on-hook (
By equipping mobile phones with a message condolence conversion function,
(It is also possible to give voice instructions to the caller.)

(4) The exchange sends the message (or voice response) to the called party's telephone and instructs the called party to go on-hook.

(5) The mobile phone sends an on-hook signal to the base station.

(6) The called party's telephone sends an on-footer signal.

(7) The base station notifies the caller that the caller is on-hook.

(8) The exchange notifies the called party that the called party is on-hook.

(9) The connection control device sends a recovery signal to the parallel processing system, instructing the start of a recovery operation that interrupts the processing operation and restores the state to the state before the start of the processing operation.

00) Each parallel processing system notifies completion of recovery operation.

0D The connection control device is in standby state.

〔Effect of the invention〕

As explained above, according to the present invention, in a mobile radio system that performs identification management of mobile stations that employs a two-phase commitment protocol call connection procedure, when a call connection fails after connecting a communication line, Reliable recovery can be performed. Therefore, there is an advantage that the user's convenience and operability as well as the reliability of the system can be improved.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of a system configuration of a local mobile phone system, Fig. 2 is a diagram showing an example of a sequence of a conventional call connection operation, and Fig. 3 is a diagram showing a sequence of a recovery operation according to the present invention. be. DESCRIPTION OF SYMBOLS 1... Mobile phone, 2... Base station, 3... Connection control device, 4... ID center, 5... Exchange, 6...
・Landline telephone network, 7...Landline telephone. , Figure 4 shows an example of a system configuration in which the internal language is spoken.

Claims (1)

[Claims] At the start of a call connection, the address and additional information of the communication partner are sent together with the mobile station identification number, and the mobile station identification number is used to collate, confirm, and manage subscriber information, and to control the wireless line. In mobile radio systems, where the settings and communication connection control processing are performed in parallel, and when a positive response is returned from all processing systems, the communication line is set up and the communication operation is started. , when connection control fails due to a failure, etc., the connection control device returns a message to the calling party via the control channel according to the details of the processing failure, and instructs the caller to go on-hook. , At the same time as the above message is sent, a message corresponding to the processing failure is returned to the called party via the exchange to instruct on-hook, and the calling party and the called party are on-hook. After confirming the above, the connection control device sends a signal to the parallel processing systems all at once to start a recovery operation, interrupts the processing operation, and controls the system to restore the state to the state before the start of the processing. Line control method.