JPH1094039A - Position registration method for radio terminal in mobile communication network - Google Patents

Abstract

PROBLEM TO BE SOLVED: To match the actual position of a radio terminal during communication and the position information of the radio terminal provided in a mobile communication network in real time by communicating the position information of the radio terminal even at the time of receiving call setting request signals in hand- over. SOLUTION: A signal reception part 61 receives signals from a radio base station housing device 5 and transmits them to a signal analysis part 62. The signal analysis part 62 analyzes the signals, informs an REG signal processing part 63 of the signals at the time of position registration request signals and informs a SETUP signal processing part 65 in the case of the call setting request signals in the hand-over. The REG signal processing part 63 and the SETUP signal processing part 65 respectively take out a radio terminal number and a radio base station housing device number included in the signals and inform a data base coping part 64. The database coping part 64 updates the position of the radio terminal to a terminal position information database 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for registering a location of a wireless terminal in a mobile communication network based on, for example, a personal handyphone system (PHS).

[0002]

2. Description of the Related Art A wireless terminal is used while moving within a service area. In order to provide various communication services, a mobile communication network needs to know the position of the wireless terminal. For this purpose, the location information of the wireless terminal is registered in a terminal location information database in the mobile communication network.

[0003] The location registration method is performed as follows when the wireless terminal is not communicating. The wireless terminal constantly receives a broadcast signal indicating the registered position from the wireless base station, and checks the position information of the wireless terminal in the broadcast signal with the position information stored in the wireless terminal. If the collation results do not match, the wireless terminal transmits a location registration request (REG) signal to the wireless base station. The wireless base station receiving this transmits the location information to the connection control device, and the location information of the wireless terminal in the terminal location information database is updated.

[0004] However, there are several types of transmission timing of the location registration request (REG) signal depending on the type of wireless terminal. There are those that notify a position registration request (REG) signal only when the collation result of the position information when the notification signal is received is different, or those that voluntarily transmit it.

[0005]

However, when a wireless terminal is communicating, even if the wireless terminal moves from one wireless area to another wireless area, the position of the wireless base station relative to the moved wireless base station is increased. Since the registration request (REG) signal cannot be transmitted, the above-described location registration is not performed. Therefore, when a movement across a wireless area occurs during communication, there arises a problem that the actual position of the wireless terminal does not match the position information of the terminal position information database in real time.

[0006] Therefore, applications utilizing the location information of the wireless terminal, such as the incoming call service during communication, which refers to the location information of the other party, cannot be effectively used, and there is a limitation in the development of new services.

[0007] Therefore, an object of the present invention is to provide a communication system in which the actual position of a wireless terminal and the position information of the wireless terminal in a terminal position information database are recorded in real time even if the mobile terminal moves from one wireless area to another wireless area during communication. It is an object of the present invention to provide a location registration method conforming to the above.

[0008]

SUMMARY OF THE INVENTION According to the present invention, when a wireless terminal moves from one wireless area to another wireless area, a position registration request signal transmitted by the wireless terminal is transmitted to a wireless base station in a destination wireless area. In the location registration method of updating the location information of the wireless terminal in the terminal location information database in the mobile communication network by receiving the information, the wireless communication apparatus can also receive the call setting request signal in the handover of the wireless terminal. The location information of the terminal is updated. Thus, even during communication, the actual position of the wireless terminal and the position information of the wireless terminal of the mobile communication network can be adapted in real time.

[0009] When moving from one wireless area to another wireless area during communication, there is a handover as a function for continuing communication as it is. The handover is to establish a service channel between the wireless base station after the movement and the connection control device, to release the service channel between the wireless base station before the movement and the connection control device after the communication state. Is what you do.

In the present invention, attention is paid to the fact that the service channel is established again in the handover. This is because the wireless base station and the connection control device can recognize the change in the position of the wireless terminal.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a system configuration diagram of a radio terminal and a mobile communication network.
, 3b, the wireless area 1a and 1b, the wireless terminal 2, the mobile communication network 4, the wireless base station accommodation device 5, the connection control device 6, and the terminal location information database 7
Is represented.

FIG. 1 shows a case where the wireless terminal 2 moves from the wireless area 1a to the wireless area 1b during communication. In this case, a service channel is established between the wireless base station 3b and the connection control device 6 by the handover, and the service channel is released between the wireless base station 3a and the connection control device 6.

FIG. 2 is a functional block diagram of the connection control device 6 according to one embodiment of the present invention. The connection control device 6
Signal receiving section 61, signal analyzing section 62, REG signal processing section 6
3, a database correspondence unit 64 and a SETUP signal processing unit 65. The signal receiving unit 61 receives a signal from the wireless base station accommodation device 5 and transmits the signal to the signal analyzing unit 62. The signal analyzer 62 analyzes the content of the signal, and if the signal is a location registration request (REG) signal, sends the signal to the REG signal processor to request a call setup (SETU) in handover.
If the signal is a P) signal, the signal is notified to the SETUP signal processing unit 65. The REG signal processing unit 63 extracts a wireless terminal number and a wireless base station accommodation device number included in the signal,
Notify the database correspondence unit 64. The SETUP signal processing unit 65 extracts the wireless terminal number and the wireless base station accommodating device number included in the signal, and
Notify to The database correspondence unit 64 updates the location information of the wireless terminal in the terminal location information database 7.

In the above-described configuration, the connection from the wireless base station accommodation device 5 to the connection control device 6 can be connected by a LAN. The radio base station accommodation device 5 that has received the signal from the radio base station can add the radio base station accommodation device number, the TCP / IP header, and the like to the signal received from the radio base station and transmit the signal to the connection control device 6. it can.

FIG. 3 shows a protocol sequence at the time of handover according to an embodiment of the present invention. Initially, a state is shown in which the wireless base station 3a and the connection control device 6 are communicating. When the wireless terminal 2 moves from the wireless area 1a to the wireless area 1b during communication, first, a service channel is established between the wireless base station 3b and the connection control device 6 via the wireless base station accommodation device 5. First, the wireless base station 3b
Sends a call setup request (SETUP) signal to the connection control device 6. With the configuration described above, S in the connection control device
The moved position information is registered in the terminal position information database 7 by the ETUP signal processing unit 65. Subsequently, upon receiving the call setup request (SETUP) signal, the connection control device 6 sends a call setup acceptance (CALL PROC) signal to the radio base station 3.
b. When the connection control device 6 is ready to accept the call setting, a call setting response (CONN) signal is sent to the wireless base station 3.
b, thereby establishing a service channel,
A communication state is established between the wireless base station 3b and the connection control device 6.

Next, the connection control device 6 releases the service channel with the wireless base station 3a before the movement of the wireless terminal 2. First, the connection control device 6 issues a call setting disconnection request (DI
SC) and a call setup release request (REL) signal to the radio base station 3a. Subsequently, the radio base station 3a receiving these signals transmits a call setup release completion notification (REL CO
When the MP) signal is notified to the connection control device 6, the release of the service channel between the wireless base station 3a and the connection control device 6 is completed.

Finally, when the communication of the wireless terminal ends,
The service channel between the moved wireless base station 3b and the connection control device 6 is released. Thereafter, the wireless terminal transmits a location registration request (REG) signal when receiving a broadcast signal from the wireless base station or voluntarily. Conventionally, the location information of the wireless terminal in the terminal location information database has not been updated until the location registration request (REG) signal is transmitted.

[0018]

As described above, the present invention provides a method for updating the position information of a wireless terminal in the terminal position information database at the time of receiving a call setup request signal in handover. The position of the terminal and the position information of the wireless terminal of the mobile communication network can be adapted in real time.

Thus, an application utilizing the location information of the wireless terminal, such as an incoming call service during communication which refers to the location information of the other party, can be effectively used, and will be effectively reflected in the development of new services in the future. Will be able to do it.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a wireless terminal and a mobile communication network.

FIG. 2 is a functional block diagram of a connection control device according to an embodiment of the present invention.

FIG. 3 is a protocol sequence diagram at the time of handover according to an embodiment of the present invention.

[Explanation of symbols]

 1a, 1b Radio area 2 Radio terminal 3a, 3b Radio base station 4 Mobile communication network 5 Radio base station accommodation device 6 Connection control device 7 Terminal location information database SETUP Call setting request CALL PROC Call setting acceptance CONN Call setting response DISC Call setting disconnection REL call setup release REL COMP Call setup release complete REG location registration request

Claims (1)

[Claims] When a wireless terminal moves from one wireless area to another wireless area, a position registration request signal transmitted by the wireless terminal is received by a wireless base station in a destination wireless area, so that a mobile communication network is provided. In the location registration method for updating the location information of the wireless terminal in the terminal location information database within, the location information of the wireless terminal in the terminal location information database is updated even when a call setup request signal is received in handover of the wireless terminal. Registration method of a wireless terminal in a mobile communication network.