JPH11196453A - Mobile communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit subscriber control even on a roaming disabled network by accepting position registration at a home location register only when it is reported to the home location register that a mobile terminal cancels the registration of an auxiliary service related to a roaming request through the subscriber control. SOLUTION: When a mobile terminal MS is moved to another home network and the first position registration is requested through a mobile exchange MSC inside the previous network, on the condition that roaming is possible, subscriber data are sent to the mobile exchange MSC. The mobile exchange MSC reports this to a home location register HLR. The home location register HLR reports 'position registration refusal' to the mobile exchange MSC while adding the detailed reason. The mobile exchange MSC starts a timer for waiting the subscriber control and reports the 'position registration refusal' to the mobile terminal MS. When roaming is still requested, the mobile terminal MS requests the inactivation of an auxiliary service S8 through the subscriber control.

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to a mobile communication method, and more particularly to a mobile communication method when a mobile terminal roams to a home location register via a mobile exchange.

With the recent development of mobile communication, the number of companies that manage mobile communication networks has been increasing. Therefore, FIG.
As shown in FIG. 1, a home network (own network) H to which each mobile terminal (subscriber) MS belongs and a network A of another company exist.

In this case, each network is provided with a home location register (HLR) (Home Location Register), which holds the subscriber data of the mobile terminal MS, but the mobile terminal MS uses a mobile switching system MSC (Mobile Switching). Ce
nter) (or the location register VLR (Visitor
Location Register). ) Via the home location register HLR
When the mobile terminal moves from the home network H to the other network A, a mobile communication method for enabling communication with the mobile switching center MSC and the home location register HLR, that is, a roaming-enabled mobile communication method is used. Is needed.

[0003]

2. Description of the Related Art FIG. 12 shows an example of an operation sequence according to a conventional mobile communication method. As shown in FIG. 12A, first, as shown in FIG. When a location registration request is made when moving from the own network H to the other network A (step S1), first, the mobile switching center MSC of the other network A
Receives this, and transfers this location registration request to the home location register HLR of the home network H (step S
2).

[0004] In response, the home location register HLR sends out the subscriber data held in advance (step S3), and the mobile switching center MSC receiving this activates when the mobile terminal MS joins and roams. If the subscriber data service is supported, a response to the effect that the subscriber data has been accepted is sent to the home location register HLR (step S4).

The home location register HLR accepts location registration (step S5), and the mobile switching center MS
C transfers this to the mobile terminal MS (step S6),
Roaming is realized.

On the other hand, if the mobile terminal MS subscribes and does not support some of the services activated during roaming (auxiliary service (additional service)), roaming is rejected as shown in FIG. Will do.

That is, steps S1 to S3 are performed in the same manner as in FIG. 1A, but the response of the subscriber data from the mobile switching center MSC indicates an unsupported auxiliary service ( In step S4 '), the home location register HLR rejects the location registration (step S7), and in response, the mobile switching center MSC notifies the mobile terminal MS of the "location registration rejection" (step S4).
8) Refuses to roam.

[0008]

As described above, when roaming is refused, the conventional example has detailed reasons (information).
Is not notified, the subscriber cannot understand why roaming is disabled.

If roaming is rejected in a network where the auxiliary service is not available, and if roaming is still desired, control is performed to roam again to a roamable network and deactivate the corresponding auxiliary service. Had to wait until the implementation.

[0010] That is, if there is no geographically roamable network, there is a problem that it is necessary to move further to find a roamable network and perform subscriber control (user operation).

Accordingly, an object of the present invention is to make it possible to perform subscriber control even in a network where roaming is impossible in a mobile communication method when a mobile terminal roams.

[0012]

Means for Solving the Problems [1] In order to achieve the above object, in a mobile communication method according to the present invention, a home location register includes an unsupported auxiliary service in subscriber data of a mobile terminal. Is notified from the roaming destination mobile exchange, the mobile terminal notifies the mobile terminal of the location registration rejection attached with the detailed reason via the mobile exchange, and the mobile terminal refers to the detailed reason. The home location register accepts the location registration only when it is notified to the home location register via the mobile exchange that the auxiliary service related to the roaming request has been deregistered by subscriber control. It was done.

That is, according to the present invention, when the mobile exchange notifies that it is unsupported subscriber data,
Since the home location register cannot receive the "location registration request", it responds with "location registration rejection". In this case, the home location register attaches the detailed reason for the rejection and sends it to the mobile terminal.

The mobile terminal receiving the "location registration refusal" to which the detailed reason is attached deactivates the auxiliary service causing the "location registration refusal" by subscriber control (user operation). When the home location register notifies the home location register of the "deregistration" of the supplementary service, the home location register notifies the mobile terminal via the mobile exchange that the "location registration" has been accepted based on the notification. .

As described above, the roaming can be smoothly performed by enabling the subscriber control even in a network where roaming cannot be performed.

[2] Further, in the present invention, the home location register has, when notified from the roaming destination mobile exchange, that the unsupported auxiliary service is included in the subscriber data of the mobile terminal. The roaming condition of the mobile terminal is checked with reference to the roaming condition data of the mobile terminal, and when the roaming priority is set, the corresponding auxiliary service is deactivated and the subscriber data at this time is transmitted to the mobile exchange. After the transmission, the mobile terminal notifies the mobile terminal of the reception of the location registration to which the detailed reason of the deactivation is attached via the mobile exchange. If the roaming priority is not set, the detailed reason is notified via the mobile exchange. The mobile terminal notifies the mobile terminal of the rejection of location registration attached to the mobile terminal, and the mobile terminal registers the auxiliary service by subscriber control with reference to the detailed reason. Divided by it is the home location register by being notified to the home location register via the mobile switching unit is also possible to perform reception of the location registration.

That is, in the present invention, the condition of the subscriber data when roaming to another network is set in advance in the home location register.

If it is determined that the "location registration request" received from the mobile terminal cannot be accepted due to an additional service factor, the home location register refers to the individual roaming conditions set in the subscriber data, and as a result, When it is determined that the roaming priority has been set, the inactivation of the auxiliary service, which is a factor of roaming disabling, is performed, and the state is shifted to a state where a “location registration request” can be accepted.

Then, the home location register sends the subscriber data indicating that the corresponding auxiliary service has been deactivated to the mobile exchange, and then accepts the location registration for the mobile terminal via the mobile exchange. At this time, the deactivated (unusable) auxiliary service is attached and notified as a detailed reason.

On the other hand, as a result of checking the above roaming conditions, if it is found that the service is not set to the roaming priority but is set to the existing service priority, similar to the present invention [1], the subscriber control is performed. "Unregister" based
Is notified to perform location registration.

As described above, the state in which roaming is disabled is eliminated according to the preset conditions, and smooth roaming is enabled.

[3] Further, according to the present invention, when the home location register is notified from the mobile exchange that the unsupported auxiliary service is included in the subscriber data of the mobile terminal, the data is transmitted via the mobile exchange. Notify the mobile terminal of the location registration rejection with the detailed reason attached, check the roaming condition by referring to the roaming condition data of the mobile terminal of the mobile terminal, and if the roaming priority is set, the corresponding Automatically perform the deregistration of the auxiliary service, and when the roaming priority is not set, the mobile terminal refers to the detailed reason and performs the deregistration of the auxiliary service by the subscriber control. The home location register can accept the location registration.

That is, in the present invention, conditions for roaming to another network are set in the mobile terminal instead of the home location register.

Then, a "location registration request" from the mobile terminal
Responds with "location refusal" because
The detailed reason for refusal is attached as above. The mobile terminal that has received the “location registration rejection” refers to a preset roaming condition and automatically performs control in accordance with the condition.

That is, if the roaming priority is set, the mobile terminal deactivates the auxiliary service which causes the “location registration rejection” by automatic activation,
"Auxiliary service registration cancellation" is notified to the home location register via the mobile exchange. The home location register notifies the mobile terminal that the "deregistration" has been accepted.

The mobile terminal immediately performs location registration again, thereby enabling smooth roaming even to a network where roaming is not possible.

In this case, when it is found that the priority is set not to the roaming priority but to the existing service priority, the "registration" based on the subscriber control is performed in the same manner as in the present invention [1] and [2]. The location is registered by executing “cancel”.

[4] According to the present invention, in any of the above-mentioned present inventions [1] to [3], when the deregistration is notified to the home location register, the home location register sets the deregistration. The reception may be returned to the mobile terminal via the mobile exchange, and thereafter, the mobile terminal may send a location registration request to the home location register again to perform the location registration.

[5] In the present invention, in any of the above-mentioned present inventions [1] to [4], the notification of the registration cancellation may automatically include a position registration request again.

[6] According to the present invention, in any of the above-mentioned present inventions [1] to [5], when the deregistration by the mobile terminal is not for an auxiliary service for which roaming is not possible, The exchange can reject the deregistration.

[7] In the present invention, in the above-mentioned present invention [3], the mobile terminal can also display the content of the automatic registration cancellation.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an operation sequence of a mobile communication method according to the present invention [1]. FIG. 2 shows an example of a process performed by a mobile exchange MSC. The operation of this embodiment will be described below with reference to FIG.

Now, as shown in FIG.
Moves from the home network H to the other network A and requests the first location registration via the mobile switching center MSC in the network A (steps S1 and S2 in FIG. 1), the conventional roaming is performed. After checking whether or not roaming is possible (such as checking whether or not the area is a roaming prohibited area), if roaming is possible, subscriber data is transmitted to the mobile switching center MSC (step S3).

The mobile switching center MSC checks the received subscriber data and, if an unsupported auxiliary service (hereinafter referred to as an auxiliary service SS1) is activated in its own network, notifies this to the home location register HLR.
(Step S4).

The home location register HLR, having received the notification, notifies the mobile switching center MSC of the "location registration refusal" with the detailed reason "auxiliary service SS1 not supported" (step S7).

In response, the mobile switching center MSC sets both the roaming non-permission flag and the subscriber control waiting flag (step S21 in FIG. 2), and starts a timer to wait for subscriber control (step S22). . Then, a notification of “location registration rejection” is sent to the mobile terminal MS with the detailed reason attached thereto (step S8).

Mobile terminal MS receiving "location registration rejection"
If you still want to roam,
The first deactivation request is executed by subscriber control (user operation) (step S41). This subscriber control is notified to the mobile switching center MSC in the form of "deregistration" of the corresponding auxiliary service SS1 (step S9).

During this time, in the mobile switching center MSC,
After the above-mentioned timer is started, it is determined whether or not a certain timer time has expired (step S23). If the timer time has already elapsed, the flag set in step S21 is released (step S21). Step S24).

When the timer time has not expired,
It monitors whether or not a notification of cancellation of the auxiliary service registration has been received from the mobile terminal MS (step S25). When the registration cancellation is received, the timer is stopped (step S25).
26).

Then, it is determined whether or not the roaming non-permission flag and the subscriber control waiting flag are set (steps S27 and S28). It is determined whether the operation is a registration release operation (step S9).

As a result, when it is found that the operation is a registration cancel operation to the auxiliary service SS1, the mobile switching center MSC notifies the home location register HLR to cancel the auxiliary service SS1 (step S1).
0).

If the flag is not set in each of steps S27 and S28, and if the deregistration operation to the auxiliary service SS1 is not performed in step S9, "rejection of the deregistration" is sent to the mobile terminal MS. (Step S9 ').

In this way, the mobile switching center MSC
Upon receiving the reception of "auxiliary service registration release" from the home location register HLR (step S11), the roaming non-permission flag and the subscriber permission waiting flag are released (step S29), respectively, and "auxiliary service registration release reception". To the mobile terminal MS (step S
12).

In this embodiment, when the "registration release" request (subscriber control request) is made in step S9, the location registration re-request and the mobile switching center MSC are simultaneously performed.
The home location register HLR regards the location registration at the same time as the registration reception (steps S9 to S12).

FIG. 3 shows an example of an operation sequence of the mobile communication method according to the present invention [2], and each processing example of the mobile terminal MS, the mobile switching center MSC, and the home location register HLR in this embodiment. Are shown in FIGS. 4 to 6, respectively. Hereinafter, the operation of this embodiment will be described with reference to these drawings.

First, in this embodiment, a roaming condition flag setting area is provided in the auxiliary service in the subscriber data in the home location register HLR. An example of this is shown in FIG.

This roaming condition enables a condition for roaming to another network to be set when a service order related to an auxiliary service is entered. That is, it is set whether to give priority to an existing service activated during roaming or to give priority to roaming. However,
Particularly, when there is no designation, the existing service is prioritized as before.

In this embodiment, steps S1-S
4 is the same as the operation sequence example shown in FIG.

Thereafter, the home location register HL
In R, since it is notified that the auxiliary service SS1 is not supported, the roaming condition flag of the auxiliary service SS1 is checked (step S5 in FIG. 3).
0, steps S51 and S52 in FIG. 6).

As a result, when the roaming priority is set, first, the corresponding auxiliary service SS1 is automatically set.
To the deactivated state (step S53), and again the deactivated auxiliary service S to the mobile switching center MSC.
Send subscriber data including S1 (step S3)
1).

Upon receiving the subscriber data, the mobile switching center MSC returns a subscriber response to the home location register HLR (step S32), and then responds to the "location registration request" from the mobile terminal MS with the "location registration reception". "
To the mobile terminal MS via the mobile switching center MSC with the detailed reason "deactivation of auxiliary service SS1" attached (steps S5 and S6).

On the other hand, when it is determined in step S52 that the roaming condition is set to prioritize the existing service, "location registration rejection" is notified with the detailed reason attached as in the example of FIG. 1 (step S7). , S8).

Thereafter, as in the example of FIG. 1, the subscriber control (step S41), "cancellation of supplementary service registration (re-registration of location registration)" (steps S9 and S10), and "cancellation of cancellation of supplementary service registration ( Location registration acceptance) "(S11, S
Perform 12).

FIG. 8 shows an example of an operation sequence of the mobile communication method according to the present invention [3]. The mobile terminal MS and the home location register HL in this embodiment are shown.
Examples of the processing of R are shown in FIGS. 9 and 10, respectively.
The processing example of the mobile switching center MSC is the same as the processing example shown in FIG.

First, in this embodiment, the mobile terminal MS
A roaming condition setting area is provided in the area. The roaming condition enables the setting of the roaming condition flag for each auxiliary service, similarly to step S50 in FIG. That is, it is set whether to give priority to the service activated during roaming or to give priority to roaming.

Also in this embodiment, steps S1 to S8
Are the same as those in the operation sequence example shown in FIG.

When notifying the mobile terminal of "location registration rejection" in step S8, the mobile switching center MSC sets a roaming non-permission flag and a subscriber control waiting flag in the subscriber data and sets a subscriber control waiting timer. Are activated (steps S21 and S22 in FIG. 2).

Mobile terminal MS receiving "location rejection"
Checks a preset roaming condition (FIG. 8)
Step S60 of FIG. 9 and Steps S61 and S62 of FIG. 9). As a result, when the roaming priority is set, in order to automatically execute the deactivation request of the auxiliary service SS1, the "registration cancellation" of the auxiliary service SS1 Is notified to the mobile switching center MSC (step S9).

The mobile switching center MSC that has received such a subscriber control notification checks the subscriber data, sets both the roaming non-permission flag and the subscriber control waiting flag, and outputs a supplementary service registration release request (subscription). Only when the user control request is related to the supplementary service SS1 which is a factor that disables roaming, the subscriber control is accepted, and a subscriber control request is sent to the home location register HLR as the supplementary service registration release request (FIG. 2). Steps S27, S28, S9, S10). Otherwise, the request is rejected (step S9 ').

The home location register HLR, which has received the subscriber control request from the mobile switching center MSC, executes this processing and returns a subscriber control reception, that is, an "auxiliary service registration reception" (step S11).

The mobile switching center MSC receiving this message transfers it to the mobile terminal MS (step S12) and clears the subscriber control waiting flag (step S29).

The mobile terminal MS that has received the subscriber control reception of the automatic activation immediately sends out the "location registration request" again (step S1 '). The mobile switching center MSC that has received the “location registration request” transfers the request to the home location register HLR in the roaming-disabled state in the same manner as when the first location registration is received under the control of the mobile switching center MSC. (Step S2 ').

The home location register HLR sends the subscriber data to the mobile switching center MSC again (step S3 '), receives a response from the mobile switching center MSC (step S4'), and returns "location registration accepted". (Steps S5 'and S6').

The mobile terminal MS that has received the "location registration acceptance" via the mobile switching center MSC displays the automatically activated subscriber control contents (step S19), and can inform the subscriber that roaming has been completed.

In the above description, the mobile switching center MSC has been described, but the same applies to the location register VLR.

[0066]

As described above, according to the mobile communication method of the present invention, when the mobile terminal roams to a network where some of the auxiliary services cannot be used, the mobile terminal is notified of the unavailable service. Then, the subscriber decides whether to roam or not and accepts subsequent subscriber control, or roaming conditions are set in advance on the network side or mobile terminal side for each mobile terminal, and the network is set in accordance with the conditions. Since the subscriber's service is automatically deactivated on the mobile terminal side or the mobile terminal side and the location is registered, roaming can be smoothly performed even in a network where roaming is not possible.

[Brief description of the drawings]

FIG. 1 is a diagram showing an operation sequence example of a mobile communication method according to the present invention [1].

FIG. 2 is a flowchart showing a processing example of a mobile exchange used in the mobile communication method according to the present invention [1].

FIG. 3 is a diagram showing an example of an operation sequence of the mobile communication method according to the present invention [2].

FIG. 4 is a flowchart illustrating a processing example of a mobile terminal used in the mobile communication method according to the present invention [2].

FIG. 5 is a flowchart showing a processing example of a mobile exchange used in the mobile communication method according to the present invention [2].

FIG. 6 is a flowchart showing a processing example of a home location register used in the mobile communication method according to the present invention [2].

FIG. 7 is a diagram illustrating an example of subscriber data including a roaming condition used in the mobile communication method according to the present invention.

FIG. 8 is a diagram showing an operation sequence example of the mobile communication method according to the present invention [3].

FIG. 9 is a flowchart illustrating a processing example of a mobile terminal used in the mobile communication method according to the present invention [3].

FIG. 10 is a flowchart showing a processing example of a home location register used in the mobile communication method according to the present invention [3].

FIG. 11 is a diagram showing an example of a system configuration common to the present invention and a conventional example.

FIG. 12 is a diagram showing an example of an operation sequence of a mobile communication method according to a conventional example.

[Explanation of symbols]

 MS mobile terminal MSC mobile exchange VLR serving location register HLR home location register In the figures, the same reference numerals indicate the same or corresponding parts.

Claims (7)

[Claims] In a mobile communication method when a mobile terminal roams, a home location register notifies a roaming destination mobile exchange that an unsupported auxiliary service is included in subscriber data of the mobile terminal. Then, the mobile terminal notifies the mobile terminal of a location registration rejection attached with the detailed reason via the mobile exchange, and the mobile terminal refers to the detailed reason and controls the auxiliary service related to the roaming request with the subscriber control. The mobile communication method characterized in that the home location register accepts the location registration only when the home location register is notified via the mobile exchange that the registration has been canceled. 2. A mobile communication method when a mobile terminal roams, wherein a home location register notifies a roaming destination mobile exchange that an unsupported auxiliary service is included in subscriber data of the mobile terminal. The roaming condition data of the mobile terminal is checked by referring to the roaming condition data of the mobile terminal in advance, and when the roaming priority is set, the corresponding auxiliary service is deactivated and the subscriber at this time is deactivated. After sending the data to the mobile exchange, the mobile terminal notifies the mobile terminal via the mobile exchange of the reception of the location registration to which the detailed reason for the deactivation is attached. The mobile terminal notifies the mobile terminal of the rejection of the location registration with the detailed reason attached thereto through the exchange, and the mobile terminal refers to the detailed reason and performs the auxiliary A mobile communication method, wherein the home location register receives the location registration by notifying the home location register via the mobile exchange that the service has been deregistered by subscriber control. 3. A mobile communication method when a mobile terminal roams, wherein a home location register is notified from the mobile exchange that an unsupported auxiliary service is included in subscriber data of the mobile terminal. At this time, the mobile terminal notifies the mobile terminal of the location registration rejection attached with the detailed reason via the mobile exchange, checks the roaming condition by referring to the roaming condition data of the mobile terminal which the mobile terminal has in advance, and performs roaming priority When it is set to, the registration of the corresponding auxiliary service is automatically performed, and when it is not set to the roaming priority, the mobile terminal refers to the detailed reason and executes the auxiliary service by subscriber control. A mobile communication method, wherein the home location register accepts the location registration by performing registration cancellation. 4. The mobile terminal according to claim 1, wherein when the deregistration is notified to the home location register, the home location register accepts the deregistration via the mobile exchange. And the mobile terminal sends the location registration request to the home location register again to perform the location registration. 5. The mobile communication method according to claim 1, wherein the notification of the cancellation of the registration automatically includes a position registration request again. 6. The mobile exchange according to claim 1, wherein the registration is canceled by the mobile terminal when the registration is not for a roaming disabled target auxiliary service. Mobile communication method. 7. The mobile communication method according to claim 3, wherein the mobile terminal displays the content of the automatic registration cancellation.