JP3067701B2 - Mobile phone system information transfer method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone system, and more particularly to an information transfer method of a portable telephone system for transferring desired information from a mobile station and transferring the desired information to the mobile station. Things.

[0002]

2. Description of the Related Art In a conventional portable telephone system, when information such as characters is transferred from a mobile station, the sequence is as shown in FIG. FIG. 4 is a sequence diagram showing an information transfer method of a conventional mobile phone system. In the figure, a public base station 21 is an exchange 3
For I with speech and control channels
The mobile station 11 is a point-to-point connection via the SDN interface, and is a wireless terminal existing within the coverage area of the public base station 21.

When the mobile station 11 makes a call request to the public base station 21 when all communication channels between the public base station 21 and the exchange 3 are used, the public base station 21 Since all communication channels with the exchange 3 are used, the call is rejected. The mobile station 11 that has received the call rejection can make a call and send information only by moving to the inside of the coverage area of the public base station 22 having a free communication channel.

FIG. 5 is a sequence diagram showing an information transfer method using a paging system. In the figure,
The public base station 21 is point-to-point connected to the exchange 3 by an ISDN interface, and the mobile station 11 is a terminal that is within the coverage area of the public base station 21 and has a paging function.

[0005] When all communication channels between the public base station 21 and the exchange 3 are used and there is an incoming call request from any mobile station 12 to the mobile station 11, the exchange 3 returns to the public base station 21. Request a call setup. However, if there is no available communication channel, the public base station 21 ignores the request, and the call setting request times out in the exchange 3 and the mobile station 12 is instructed to release the call.

[0006] The mobile station 12, which has determined that the mobile phone system cannot be used by releasing the call, accesses the paging system 2. As a result, the mobile station 12 transmits
, It is possible to transfer desired information.

[0007]

However, in such an information transfer method of a conventional portable telephone system, when information is transmitted from a mobile station, a public base station having the mobile station within a cover area and an exchange are used. When all communication channels are blocked, information transmission is rejected,
If the mobile station does not move into the coverage area of the public base station having a vacant communication channel between the public base station and the exchange, information cannot be transmitted unless the mobile station is covered, and the reliability of the mobile station is low. .

In the case where information is transmitted from the exchange to the mobile station, the information transmission is rejected by the exchange when all communication channels between the exchange and the public base station having the mobile station in the cover area are blocked. Therefore, any mobile station that wants to transmit information to the mobile station must access a paging system different from the mobile phone system and transmit information to the mobile station starting from that system. There is a problem that the performance and service performance are poor. The present invention has been made in order to solve such a problem, and even when all the communication channels of the public base station and the exchange are in use, the mobile station existing in the coverage area of the public base station can receive information. It is an object of the present invention to provide an information transfer method of a mobile phone system that can transfer the information.

[0009]

In order to achieve the above object, an information transfer method for a portable telephone system according to the present invention provides an exchange for transferring desired information in response to an information transfer request from a mobile station. In this configuration, desired information is transferred between a public base station and a public base station using a non-connection type message. Also, between the exchange and the public base station,
Non- control using the control channel on the ISDN interface
It is designed to transfer connection-type messages .

[0010] Further, when receiving a predetermined information transfer request from the mobile station, the public base station transfers desired information included in the information transfer request to the exchange using a non-connection type message. When a non-connection type message is received from the exchange, the desired information included in the information transfer request is transferred to a predetermined base station, and when the non-connection type message is received from the public base station, The mobile station to which the non-connection type message is notified transfers the non-connection type message to a predetermined public base station existing in the coverage area.

[0011]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a conceptual flowchart showing an information transfer method of a mobile phone system according to an embodiment of the present invention. FIG. 1A shows a case where information transfer is performed from a mobile station.
(B) shows a case where information is transferred to a mobile station. According to the present invention, the information transfer which has conventionally been performed only when the communication channel between the exchange and the public base station can be captured is transferred by a non-connection type message using the control channel between the exchange and the public base station. It was made.

[0012] The non-connection type message means that, at the time of transfer, there is no need to set up a circuit-switched connection using a communication channel on the ISDN interface prior to communication between the transmitting and receiving terminals. Or between the exchanges.

When an information transfer request is received from a mobile station,
The information transfer process shown in FIG. First, the public base station determines whether or not the information transfer request received from the mobile station is for a non-connection type message (step S1). To transfer the information (step S2). The exchange that has received the message determines whether the received message is a non-connection type message (step S3), and if the message is a non-connection type message, transfers the information to the notification destination as a non-connection type message (step S4). ).

When an information transfer request to the mobile station is received, an information transfer process shown in FIG. 1B is started. First, the exchange determines whether the information transfer request to the mobile station is for a non-connection type message (step S5). If the request is for a non-connection type message, the public base having the mobile station within the coverage area is determined. The information is transferred to the station by a non-connection type message (step S6). The public base station that has received the message determines whether the received message is a non-connection type message (step S7), and if the message is a non-connection type message, transfers the information to the mobile station (step S8).

FIG. 2 is a block diagram of an example of a portable telephone system using the information transfer method of the portable telephone system of the present invention. The public base stations 21 and 22 are point-to-point connected to the exchange 3 via an ISDN interface 1 having a communication channel and a control channel, and mutually transmit and receive various messages via the exchange 3. Mobile stations 11 and 12 are present in the coverage areas of the public base stations 21 and 22, respectively, and both are in a communicable state.

The exchange 3 includes a received information analyzer 4 for analyzing the received message from the public base station, a notification destination searcher 5 for searching for a notification destination of the received message, and a transmission signal for sending the message to the notification destination. And a control unit 6. Therefore, the non-connection type message from the public base station is analyzed by the reception information analysis unit 4, the transmission signal control unit 6 generates the non-connection type message, and indicates the notification destination searched by the notification destination search unit 5. Transferred to public base station.

The public base station 21 has an ISDN interface section (I
SDNI / F unit) 8, a wireless unit 7 for transmitting and receiving wireless signals exchanged with the mobile station 11, and a mutual conversion between wired signals and wireless signals exchanged with the exchange 3, analyzing received messages, It has a control unit 9 for generating a non-connection type message, and a memory unit 10 for storing information necessary for processing of the control unit 9.

Note that the public base station 22 has the same configuration as the public base station 21. In this way, the exchange 3 received by the ISDN interface 8
Is converted into a radio signal from the radio unit 7 and transferred to the mobile station 11. Further, the information notification request indicating the non-connection type received by the wireless unit 8 is converted into a non-connection type message and transferred from the ISDN interface unit 8 to the exchange 3.

Next, the operation of the present invention will be described with reference to FIG. FIG. 3 is a sequence diagram showing an information transfer method of the mobile phone system according to the present invention. When the information notification request 31 is received from the mobile station 11 existing within the coverage area of the public base station 21, the control unit 9 of the public base station 21 analyzes whether the request indicates the non-connection type. Perform 32.

If the request indicates a non-connection type, the control unit 9 generates a non-connection type message 33 to which desired information included in the received information notification request 31 is added.
I do. Then, the ISDN interface unit 8 does not capture the communication channel on the ISDN interface 1 with the exchange 3, and uses the control channel to
The generated non-connection type message 34 is transferred to the exchange 3.

The exchange 3 that has received the message from the public base station 21 analyzes the received information analysis unit 4 to determine whether the received message is a non-connection type message 35. Here, when it is determined that the request is of the non-connection type, the call path capture skip 36 which is a normal process of capturing the call path in the exchange is performed, and the notification destination search unit 5 searches for a notification destination 37. .

Then, the transmission signal control unit 6 generates a non-connection type message 38 to which desired information included in the message received from the public base station 21 is added, and the searched notification destination, that is, the mobile station The non-connection type message 39 is transmitted to the public base station 22 having 12 in the cover area.

The public base station 22 receiving the message from the exchange 3 performs an analysis 40 as to whether the message received from the exchange 3 is a non-connection type message. Here, when it is determined that this message is of the non-connection type, a predetermined message for notifying desired information included in the received non-connection type message is generated 41, and the mobile station 12 within the coverage area is generated. An information notification 42 is performed.

[0024]

As described above, according to the present invention, information is transferred between the exchange and the public base station by a non-connection type message which does not require a communication channel. Is transmitted, information can be transmitted from the mobile station even when all communication channels between the public base station having the mobile station in the coverage area and the exchange are blocked, and the reliability of the mobile station is improved. In addition, the information transfer request to the mobile station can be notified only by the mobile phone system without using another paging system, so that operability and service performance are improved.

[Brief description of the drawings]

FIG. 1 is a flowchart schematically illustrating an information transfer method of a mobile phone system according to an embodiment of the present invention.

FIG. 2 is a block diagram of a mobile phone system using an information transfer method of the mobile phone system according to one embodiment of the present invention.

FIG. 3 is a sequence diagram showing an example of an information transfer method of the mobile phone system according to one embodiment of the present invention.

FIG. 4 is a sequence diagram showing an information transfer method of a conventional mobile phone system.

FIG. 5 is a sequence diagram showing an information transfer method using a paging system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... ISDN interface, 21, 22 ... Public base station, 3 ... Switch, 4 ... Reception information analysis part, 5 ... Notification destination search part, 6 ... Transmission signal control part, 7 ... Radio part, 8 ... ISDN
Interface unit 9 Control unit 10 Memory unit 1
1,12 ... Mobile station.

Claims (3)

(57) [Claims] 1. A portable telephone system comprising a plurality of public base stations connected point-to-point to an exchange via an ISDN interface, and a plurality of mobile stations communicating wirelessly with the public base stations. A mobile phone for transferring desired information between a switchboard and a public base station using a non-connection type message when transferring desired information in response to an information transfer request from a mobile station; How the system transfers information. 2. The information of the mobile phone system according to claim 1.
In the transfer method , an I / O between a switch and a public base station is performed.
Using said control channel on SDN interface
An information transfer method for a mobile phone system, comprising transferring a non-connection type message . 3. The information transfer method according to claim 1, wherein the public base station, when receiving a predetermined information transfer request from the mobile station, includes a request included in the information transfer request. Is transferred to the exchange using a non-connection type message, and when the non-connection type message is received from the exchange, the desired information included in the information transfer request is transferred to a predetermined base station, and the exchange When a non-connection type message is received from a public base station, the mobile station to which the non-connection type message is notified transfers the non-connection type message to a predetermined public base station existing within the coverage area. An information transfer method for a mobile phone system, comprising: