JP3369934B2 - Mobile communication network - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a location register (LR).
Terminal authentication procedure for simultaneous call from the terminal.

[0002]

2. Description of the Related Art Conventionally, a mobile communication system having a configuration shown in FIG. 1 is known. In the configuration of the mobile communication system of FIG. 1, reference numerals 1 and 2 denote a plurality of radio base stations (BS) having mutually independent radio zones, 3 is a mobile communication gateway switching center (GMSC), which is used to communicate with other networks. It has an interworking function, and inquires the location register 5 for subscriber information including the location information of the destination mobile station when an incoming call is connected to the mobile station. 4 is a mobile switching center (MSC)
And a location that manages subscriber information for mobile devices.
The register 5 and the gateway exchange 3 are connected via a communication line 16. The base stations 1 and 2 are accommodated via the communication lines 9 and 10 separately. 7 is a mobile switching center (MS
C), which is connected to the relay station 4 via the communication line 17. Reference numeral 8 is a radio network controller (RNC), which sends a simultaneous ringing signal to the base stations 1 and 2. Reference numeral 6 is a mobile station (MS) located in the radio zone, which also constitutes a mobile communication system.

Gateway switching center 3, location register 5, relay switching center 4, relay switching center 7, radio network controller 8
Are commonly connected to a common line network 14 via control lines 13, 15, 18, 19, and 20, respectively. Also,
The wireless line control station 8 accommodates the base stations 1 and 2 via the control lines 11 and 12.

The relay exchange 4 is connected to another mobile communication relay exchange (MSC) 21 via a communication line 22, and the relay exchange 4 is subordinate to the relay exchange 4.
It has the same structure as the subordinate of. The relay exchange 7 and the radio network controller 8 together constitute an exchange 24.

A conventional procedure for making a simultaneous call from the location register 5 in such a mobile communication system will be described with reference to FIGS. 2 and 3.

When the gateway exchange 3 requests the routing number (S302), the location register 5 makes a general call request to the relay exchange 24 (S304). Upon receipt of this, the relay switching center 24, for each of the base stations 1 and 2,
A general call request is issued (S306, S308). The base stations 1 and 2 call the mobile stations all together (S310, S).
312). The mobile station (destination terminal) 6 that received the general call returns a general call response (S314).

The relay exchange 24 receives the general call response (S314) from the destination terminal 6 via the base station 1 (S3).
16), and the transit exchange 24 uses the location register 5
A general call response signal is sent to (S318). When the location register 5 receives the general call response,
In order to confirm the legitimacy of the destination terminal (user), the exchange 24
An authentication request signal is sent to (S320). The exchange 24 which has received the authentication request signal sends the authentication request signal to the destination terminal 6 via the base station 1 (S322, S32).
4) Then, the authentication response from the destination terminal 6 via the base station 1 (S
326, S328).

The exchange 24 compares the result of the authentication response received from the destination terminal with the authentication information received from the location register 5, and sends the result to the location register 5 (S330). Then, the location register 5 returns a routing number response to the gateway relay station 3 (S332).

As described above, in the conventional general call,
The location register is heavily loaded during the paging and authentication procedure.

[0010]

SUMMARY OF THE INVENTION According to the present invention, when paging is performed from a location register (LR), the location register (L
It is intended to reduce the load of R).

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a location register to a switching center.
In a mobile communication network for performing paging with the Rokeshi <br/> tio emission registers, when performing paging, also authentication information at the same time the called terminal when sending a paging request to the mobile switching center sends and, wherein the switching center line a paging to the terminal
There, as a trigger of receiving the paging response from the called terminal, and performs an authentication request to the called terminal.

Furthermore, the switching center, whereupon that it has received the certification <br/> card response from the deposition terminal, received from the said authentication information received from the location register called terminal
Comparing the result of the authentication response, before the result of the comparison
Serial paging response at the same time be sent to the location register.

With the above configuration, it is possible to reduce the number of signals relating to paging and authentication received by the location register from the switching center by the location register at the time of paging and authentication.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.

FIG. 4 is a diagram for explaining the outline of the embodiment of the present invention, and FIG. 5 is a diagram for explaining the sequence of the embodiment of the present invention in detail. The operation of the embodiment of the present invention will be described below with reference to these two figures. The configuration of the mobile communication network is the connection configuration shown in FIG.

The mobile device 6 has a location registration area 23 in which it is located.
Is registered in the location register 5. At this time, when an incoming call request is made to the mobile device 6, the gateway relay station 3 which is a gateway to another network is
A routing number is requested to the register 5 (S3
02).

In response to this routing number request, the routing function of the location register 5 is such that the destination mobile station 6
If the routing number to the existing base station or relay switching station is recognized, this routing number is sent to the gateway relay station 3 without calling all at once, and the gateway relay station 3 arrives at this routing number. The incoming call is connected to the mobile device 6.

On the other hand, in response to the routing number request, when the routing management function of the location register 5 does not recognize the routing numbers of the terminating mobile station 6 to the existing base station 1 and transit switching station 7. , The location register 5 paging management function is activated, and the mobile unit 6
To the relay switching center 7 registered at the time of location registration (S402).

A general paging request including the identification number of the mobile unit 6 (destination mobile unit number) and position registration area identification information (paging area identification information) for the mobile unit 6 is sent to the exchange 24 via the common line signaling network 14. It is sent (S402). At the same time as sending this paging request to the exchange, the authentication information regarding the mobile station 6 is also sent to the relay exchange 7.

Next, in response to the general call request from the location register 5, the relay exchange 7 sends a general call request to the radio network controller 8 under its control. Upon receiving the paging request, the wireless line control station 8 sends the paging request to the subordinate base stations 1 and 2 (S306, S308). When the mobile device 6 in the location registration area 23 receives the paging request signal, it sends a paging response signal to the base station 1 (S31).
4). The base station 1 sends a paging response signal to the wireless line control station 8
(S316), and the radio network controller 8 sends a paging response signal to the relay exchange 7.

The relay exchange 7 having received the paging response,
In order to confirm the legitimacy of the mobile device 6, an authentication request signal is sent to the wireless line control station 8, and the wireless line control station 8 sends the authentication request signal to the subordinate base station 1 (S404). Base station 1
Sends an authentication request to the mobile device 6 (S324). The mobile device 6 that has received the authentication request signal sends an authentication response signal to the base station 1 (S326). Upon receiving the authentication response signal, the base station 1 sends the authentication response signal to the wireless line control station 8, and the wireless line control station 8 sends the authentication response signal to the relay exchange station 7 (S328).

The relay exchange 7 which has received the authentication response signal,
The authenticity of the mobile device 6 is confirmed by comparing the authentication information received from the location register 5 with the authentication response result from the mobile device 6. When the authentication is completed, the relay exchange 7 sends an authentication request response signal to the location register 5 at the same time as the paging response (S406).

As described above, the paging request and the authentication request are simultaneously sent from the location register to the relay exchange, and the response is also sent from the relay exchange to the location register at the same time. -The load on the register can be reduced.

[0024]

As described above, according to the present invention, when paging from the location register is performed, the location register sends the paging to the switching center and the location register receives paging from the switching center. The number of signals for authentication can be reduced, and the load on the location register can be reduced.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a mobile communication network.

FIG. 2 is a schematic diagram illustrating a conventional simultaneous call.

FIG. 3 is a sequence diagram illustrating a conventional simultaneous call.

FIG. 4 is a schematic diagram illustrating a general call of the present invention.

FIG. 5 is a sequence diagram for explaining a simultaneous call according to the present invention.

[Explanation of symbols]

1, 2 wireless base station (BS) 3 Gateway Exchange (GMSC) 4 Relay Exchange (MSC) 5 location register 6 Mobile device (MS) 7 Exchange (MSC) 8 Radio network controller (RNC) 9,10,17,22 Communication line 11,12,13,15,18,19,20 Control line 14 common line network 21 Relay Switching Center (MSC) 23 Wireless area 24 Exchange

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masami Yabuzaki 2-10-1 Toranomon, Minato-ku, Tokyo NTT Mobile Communications Network Co., Ltd. (56) Reference JP-A-11-27726 (JP , A) JP-A-8-237727 (JP, A) JP-A-11-146442 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04B 7/26 H04Q ⁷ /00- 7/38

Claims (4)

(57) [Claims] 1. A location register to an exchange.
In a mobile communication network for performing paging to the location register, when performing paging,
Also sends authentication information at the same time sending a paging request destination terminal to said switching center, the switching center performs paging to the terminal, triggered by the receiving the paging response from the called terminal as a mobile communication network and performs an authentication request to the <br/> called terminal. 2. A mobile communication network according to claim 1, further wherein the switching center, when Ru <br/> be that it has received the authentication response from the deposition terminal, the authentication information received from the location register the authentication result <br/> compares the response, the mobile communication network, characterized by sending at the same time the location register and the paging response results of the comparison received from the called terminal and. 3. From the location register to the exchange.
In paging method in a mobile communication network for performing paging to the location register, when performing paging,
Also sends authentication information at the same time sending a paging request destination terminal to said switching center, the switching center performs paging to the terminal, triggered by the receiving the paging response from the called terminal As a method, a paging method in a mobile communication network, wherein an authentication request is made to the destination terminal. 4. The general calling method according to claim 3,
Furthermore, the switching center, when Ru <br/> be that it has received the authentication response from the deposition terminal, said location register and the authentication information received from the said result of the authentication response received from the destination terminal <br /> compare, paging method in a mobile communication network, characterized by sending at the same time the location register and the paging response the result of the comparison.