KR100285162B1 - Phone Number Analysis Method and Device in Satellite Communication System - Google Patents

Abstract

The present invention breaks down the number translation step for a received incoming telephone number, and increases the number of numbers shared by a plurality of terminal stations, thereby enabling efficient use of a limited telephone number. And a device, comprising: a satellite communication system for providing a communication function to a subscriber by combining a plurality of terminal stations coupled to a plurality of subscribers and a public switched network, respectively, via a satellite, the called telephone number received from any subscriber. In the area code search step of searching for an area code in the area code, a station number assignment determination step of determining whether a station number is assigned to the information data added to the area code searched in the area code search step, and a station number is assigned in the station number assignment decision step If it is determined that the phone number is the area code searched for A station number search step for searching for a number, a called number assignment determination step for determining whether a called number is assigned to the information data added to the station number searched for in the station number search step, and the called number assignment decision step determines that the called number is assigned If the terminal number or called number is not determined in the incoming number search step of searching for the number after the searched station number in the received incoming phone number, and the station number assignment determination step and the called number assignment determination step And a phone number information transmission step of transmitting an outgoing and incoming phone number to a terminal station corresponding to the number.

Description

Phone Number Analysis Method and Device in Satellite Communication System

The present invention relates to the telephone number analysis of a satellite communication system using satellites, and in particular, by subdividing the number translation step for the received incoming telephone number and increasing the number of numbers that can be shared by a plurality of terminal stations. The present invention relates to a phone number analysis method and a device in a satellite communication system that can be used efficiently.

At present, satellite communication, which enables subscribers who are located at remote sites to make calls through satellites, is becoming increasingly common. Since such satellite communication does not require a separate signal line for a call, mainly a long distance communication between countries, Or it is usefully used as a communication method in a mountainous country like Korea.

1 is a system configuration diagram showing an overall configuration of a general satellite communication system.

In the figure, reference numeral 1 is a satellite having a plurality of communication channels, 2 is a central control station for controlling the entire satellite communication system, and 3 (3A, 3B) is an internal subscriber terminal 11A1-11AN, 11A1-11BN. And, connected to the public communication subscriber network (PSTN), private switching network (PABX) and the like to perform the interface function, and the call function between the terminal and the general communication network through the data transmission and reception with the central control station (2) It is a terminal station that provides.

In FIG. 1, reference numeral S denotes a service channel for transmitting and receiving control data, and T denotes a traffic channel for transmitting and receiving data or voice.

In the above configuration, in the normal state, the central control station 2 transmits the control message through the service channel and then, based on the response message transmitted from the terminal station 3, that is, the state of each base station 3, namely, It performs a polling function that checks the available capacity of the communication capacity or communication channel. When there is a call request from a specific base station, for example, the base station 3A to a terminal having jurisdiction over the base station 3B, it is determined whether the base station 3B is in a state in which communication is possible based on the information obtained in the polling process. When the communication state is available, the available traffic channels T of the satellites are allocated to both base stations 3A and 3B so that the base stations 3A and 3B can directly communicate with each other.

Subsequently, when the communication between the base stations 3A and 3B is terminated and the communication end signal is applied from the base station 3A to which the communication request is made via the service channel S, the central control station 2 transmits to both base stations. By executing the communication termination process for the base station, the traffic channel T provided to both the base stations 3A and 3B is released.

On the other hand, the base station (3) combined with the subscriber receives a call request from the subscriber to the other subscribers in the country, and performs a series of operations for allocating a traffic channel for the call request with the central control station (2) as described above. It avoids and sets up a call on its own to provide the calling function of both subscribers.

In addition, the base station (3) has a telephone data card (Telephone Data Card) that can be connected to the ground network subscriber (Trunk Interface Port) that can interoperate with the Public Switched Telephone Network (Trunk Interface Port) ) To provide mutual communication between the general telephone subscriber and the satellite communication subscriber.

At this time, when a satellite network subscriber attempts to call and calls a general telephone subscriber, a predetermined call processing processor is in charge of a series of call processing accordingly. First, outgoing / incoming telephone number data for number translation for the corresponding subscriber Send the call to the number translation processor after the translation of the called number.

That is, when the number translation processor receives the called party's number from the calling subscriber, that is, the area code, the country code, and the called number, the number translation processor first performs the number translation on the area code, where the translated area code is internal. Only the area code assigned to the network translates the rest of the received number and performs a series of call processing.

In addition, in general, users want to dial a number in the same manner to the PSTN numbering system, so the satellite communication network must adhere to the PSTN numbering system. However, the telephone number assigned to the satellite communication network is limited.

Therefore, a plurality of terminal stations share and use an area code and a station number, and the number translation processor translates only the area code from the received subscriber's number, which terminal station should be connected to the received number. Confusion arises in the judgment, which causes a problem that call processing cannot be performed.

Accordingly, the present invention has been made in view of the above circumstances, and by subdividing the number translation step with respect to the received calling number, to solve the problem of a plurality of terminal stations are assigned to use the same area code and station code. An object of the present invention is to provide a number translation method and a device thereof in a satellite communication system.

1 is a system configuration diagram showing an outline of a general satellite communication system.

Figure 2 is a block diagram showing the internal configuration of the telephone number translation apparatus 50 according to the present invention.

FIG. 3 is a data storage table of each number information storage unit shown in FIG.

Fig. 4 is an operation flowchart for explaining the operation of the apparatus shown in Fig. 2;

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

50: Telephone number translation device. 51: receiving data storage unit,

52: area code information storage unit, 53: station code information storage unit,

54: called party number information storage unit, 55: search data storage unit,

56: terminal station information storage unit, 57: number translation processor.

The number translation method in the satellite communication system according to the first aspect of the present invention for achieving the above object is to provide a communication function to the subscriber by combining a plurality of terminal stations coupled with a plurality of subscribers and public switched networks, respectively, through satellites. A satellite communication system comprising: an area code search step of searching for an area code from an incoming telephone number received from an arbitrary subscriber; and determining whether a station code is assigned to information data added to the area code retrieved from the area code search step; If it is determined that the station number is assigned in the station number assignment determination step, the station number assignment decision step, a station number search step for searching for a number after the area code searched from the received incoming phone number, and is added to the station number searched for in the station number search step. Called party number assignment plate to determine whether called party number is assigned to information data However, if it is determined that the called number is assigned in the called number assignment determination step, a called number search step for searching for a number after the searched station number in the received called phone number, and the station number assignment determination step and the called number assignment If it is determined in the determination step that the station number or the called number is not assigned, it characterized in that it comprises a telephone number information transmission step of transmitting the outgoing and incoming telephone number to the terminal station corresponding to the retrieved number.

In addition, the telephone number analysis apparatus in the satellite communication system according to the second aspect of the present invention for achieving the above object, the subscriber by combining a plurality of terminal stations coupled with a plurality of subscribers and public switched networks, respectively, via satellite A satellite communication system providing a communication function to a user, comprising: receiving data storage means for temporarily storing an outgoing and incoming telephone number for a call request received from a subscriber, and area code information having information data for each area code; Storage means, station number information storing means for storing information data for each station number, called number information storing means for storing information data for each called number, search data storing means for temporarily storing the retrieved number, and each terminal Terminal station information storage means for storing terminal station information for a number fixedly assigned to the station, and Based on the new phone number, the area code, the station code, and the called number are interpreted sequentially, and the number searched at the time of searching for the number is temporarily stored in the search data storage unit. And controlling means for searching for the corresponding terminal station based on the number data stored in the data storage unit and controlling the transmitting and receiving telephone number to be transmitted to the corresponding terminal station.

That is, according to the above, by increasing the number of numbers that can be shared by a plurality of terminal stations, not only the limited telephone number can be efficiently allocated, but also the number translation step for the received caller number is subdivided. The problem of increasing the number of numbers shared by multiple terminal stations can be solved.

Next, an embodiment according to the present invention having the above configuration will be described.

2 is a block diagram showing an internal configuration of a number translation apparatus 50 in a satellite communication system according to an embodiment of the present invention.

In FIG. 2, reference numeral 51 is a reception data storage unit for temporarily storing an outgoing and incoming telephone number for a call request received from a subscriber, and 52 is an area code information storage unit storing information data for each area code; 53 is a station number information storage unit for storing the information data for each station number, 54 is a called number information storage unit for storing information data for each called number, each number storage unit as shown in FIG. It consists of tables organized in a manner.

For example, if the received number is "124", search for "1" at the first level 0 as shown in FIG. 3, and then search for the second received number "2" of the table corresponding to "1" at the first level. . Then, at the second level, the third received number "4" of the table corresponding to "2" is searched.

In addition, the table has information data for each number, so that information on whether the searched number "124" is the last level of the search number or the next level should be searched further, or whether it is an internal or external call, etc. The data is stored in a predetermined format.

On the other hand, reference numeral 55 is a search data storage means for temporarily storing the number retrieved from the area code information storage unit 52, the station code information storage unit 53 or the called number storage unit 54, 56 is each terminal station The terminal station information storage means for storing the terminal station information about the number fixedly assigned to the terminal 57 retrieves the area code, the station code and the called number from the received incoming phone number, and sends a predetermined message to the called party. As a number translation processor, it performs number translation on the basis of information data identified at each number search.

In addition, reference code MPH (Main PCM Highway) is a data bus for transmitting and receiving information data, such as voice signal or data signal, UPH (Utility PCM Highway) is a control bus for transmitting and receiving control data between each device.

Next, the operation of the device having the above configuration will be described with reference to the flowchart shown in FIG.

First, each number information storage unit has information data set so that all of the subscriber's telephone numbers accommodated by the terminal stations of the own country can search both the area code, the station code, and the called number.

That is, when the station's fixed allocation number is "02-3452" and one of the called numbers accepted by the own station is "1431", the station number information storage unit 52 has the station number assigned to the area code "2". It exists, and the called number information storage unit 53 stores and sets the information indicating that the called number "1431" is an internal call with respect to the station number "3452".

On the other hand, when the calling subscriber enters the incoming telephone number for the call setup request with any called number, the incoming telephone number is authorized by the number translation processor 57, so that the predetermined incoming telephone number data is received. When (ST1), the number translation processor 57 stores the received outgoing call number and incoming call number data in the received data storage 51 (ST2).

And, as a number translation 57 is to read the incoming call number data stored in the receiving data storage unit 51 in order to retrieve the read number data in the area code storage unit 52 (ST3), where the area code The area code set in the storage unit 52 indicates not only the area code in the PSTN network, but also the division of allocation numbers (for example, 011, 012, 015, 016, 018, etc.) between communication providers or networks.

Subsequently, the number translation processor 57 determines whether there is an area code of the received called number (ST4). If an area code is not set, the number translation processor 57 transmits an error message to the caller through MPH. ST5).

On the other hand, in step ST4 of determining whether the area code exists in the called number, if the area code exists, the searched area code is stored in the search data storage unit ST6, and the search area of the area code storage unit 52. It is checked whether the station number is assigned to the local station in the information data of the number (ST7).

In this case, the area code storage unit 52 stores information data indicating that the station number is assigned only to the area code accommodated by the local station.

In step ST7, if it is determined that the station number is not assigned to the searched area code, the number translation processor 57 performs the terminal station information storage unit (based on the number data stored in the search data storage unit 55). In step 56, the terminal station is searched for and the called / incoming telephone number stored in the reception data storage 51 is transmitted to the searched terminal station (ST8). Thereafter, the number translation processor 57 resets the corresponding data stored in the search data storage unit 55.

On the other hand, in step ST7 of checking whether the station number is allocated from the searched area code, if it is determined that the station number is assigned to the searched area code, the number translation processor 57 receives the incoming call after being searched by the reception data storage unit 51. The number data is read out to retrieve the read number data from the station number storage unit 53 (ST9).

Subsequently, the number translation processor 57 determines whether the next number is allocated to the searched station number (ST10), and repeats the ST9 step of reading and searching the station number for the station number determined to be assigned the next number. Done. That is, the station numbers are sequentially searched.

On the other hand, if it is determined in step ST10 that the next number is not assigned to the searched station number, the number translation processor 57 checks whether this number is the last number of the station number in the information data of the searched number (ST11), At this time, if the number does not correspond to the last number of the searched station number, the step ST8 is performed to transmit the originating and receiving telephone number data to the corresponding terminal station based on the data stored in the search data storage unit.

That is, in the situation where the search for the area code is completed, if the station number of the own station is "3452" and the station number of the received incoming call number is "3462", the number corresponding to the 3 number of the station code information storage unit 53 in FIG. In the information data stored in "6" of the table, predetermined data for indicating that it is not a telephone number accepted by the own station and not the last number of the station number is stored.

On the other hand, in step ST11 of checking whether the searched station number is the last number, if it is determined that the searched number is the last number of the station number, the number translation processor 57 checks whether the station number is set as an internal code in the information data of the station number. (ST12) If the searched station number is not an internal code, the searched station number data is stored in the search data storage unit 55 (ST13), and the terminal station is sent to the terminal station based on the number data stored in the search data storage unit 55. Repeat step ST8 to send the incoming telephone number.

In addition, when it is confirmed that the station number retrieved in step ST12 is set to the internal code, the number data after being retrieved from the data stored in the reception data storage unit 51 is read, and the called number storage unit 54 reads out the number data. If the next number is assigned to the retrieved read number (ST14), and if the next number is assigned to the retrieved read number, step ST14 is repeated.

On the other hand, if the next number is not assigned to the number found in step ST15, check whether the number corresponds to the last number in the information data of the found number (ST16), and the number corresponds to the last number. If not, the step ST8 is performed.

Further, if it is confirmed that the number retrieved in step ST16 corresponds to the last number, the number translation processor 57 centrally processes the call setup message based on the information data stored in the corresponding number table of the called number storage unit 54. To a device (not shown).

That is, when the number fixedly assigned to the own station is used in common with other terminal stations, only the area code 02 of the area code information storage unit 52 and the station number 3452 of the station code information storage unit 53 are used. Thereafter, information data indicating that an allocation number exists for the called number is stored, and the called number accepted by the own station is searched to the last number. For a plurality of terminal stations sharing the area code and the station number, Call processing can be performed smoothly.

Therefore, by increasing the number of numbers that can be shared by a plurality of terminal stations, not only can a limited telephone number be efficiently allocated, but also the number translation step can be further subdivided for the received calling number. This problem can be solved by increasing the number of shared numbers.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

As described above, according to the present invention, the number translation step is subdivided with respect to the received calling number, thereby increasing the number of numbers shared by the plurality of terminal stations, thereby making it possible to efficiently use the limited telephone number.

Claims (5)

In the satellite communication system for providing a communication function to the subscriber by combining a plurality of terminal stations, each of which is combined with a plurality of subscribers and public switched networks through satellites, An area code search step of searching for an area code from an incoming call number received from any subscriber; Station number assignment determination step of determining whether the station number is assigned to the information data added to the area code retrieved in the area code search step, If it is determined that the station number is assigned in the step of determining the station number, the station number search step of searching for a number after the area code found in the received incoming phone number; A called number assignment determining step of determining whether a called number is assigned to the information data added to the searched station number in the station number search step, If it is determined that the called number is assigned in the called number assignment determination step, a called number search step for searching for a number after the searched station number from the received called number; In the case of determining that the station number or the called number is not assigned in the station number assignment determination step and the called number assignment determination step, including a telephone number information transmission step of transmitting an outgoing and incoming phone number to a terminal station corresponding to the retrieved number. Phone number analysis method in a satellite communication system, characterized in that configured. The method of claim 1, The telephone number transmission step may include: a search number storage step of temporarily storing the area code searched in the area code search step and the station code searched in the country code search step; If it is determined that the station number or the called number is not assigned in the station number assignment determination step and the called number assignment determination step, the corresponding terminal station is searched based on the data stored in the search number storage step, and the call is made to the retrieved terminal station. Phone number analysis method in a satellite communication system, characterized in that it comprises a information transmission step of transmitting a number. In the satellite communication system for providing a communication function to the subscriber by combining a plurality of terminal stations, each of which is combined with a plurality of subscribers and public switched networks through satellites, Receive data storage means for temporarily storing the outgoing and incoming telephone number for the call request received from the subscriber; Area code information storage means for storing the information data for each area code, Station number information storage means for storing the information data for each station number, Called number information storage means for storing information data for each called number; Search data storage means for temporarily storing the retrieved number; Terminal station information storage means for storing terminal station information on a number fixedly assigned to each terminal station; Based on the incoming call number, the area code, the station code, and the incoming number are interpreted in sequence, and the searched number is temporarily stored in the search data storage. Phone number analysis in a satellite communication system, characterized in that it comprises a control means for searching for the terminal station based on the number data stored in the search data storage unit and controlling to transmit the outgoing and incoming telephone number to the terminal station. Device. The method of claim 3, wherein And said number information storage means is configured by adding information data for each number. The method according to claim 3 and 4, And each number information storage unit stores information data indicating that the number after the search is assigned only to the number accepted by the local station.