JP2012044624A - User terminal device and connection destination selection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible for a user to easily make use of a service even when the service is provided only by a specific network.SOLUTION: When there is a difference in available service between a mobile communication network and a fixed communication network; after a user turns on power, a user terminal device of the invention determines which of the mobile communication network and the fixed communication network has more frequently-used service by referring to history information storage means, and switches to the one that is the communication network having more frequently-used service. When the user inputs a service request; the user terminal device refers to service menu storage means based on the service request, determines whether the required service is available in the communication network in use at present. If the required service is not available in the communication network in use at present, the user terminal device switches to the communication network in which the required service is available.

Description

  The present invention relates to a user terminal device and a connection destination selection method, and more particularly, to a connection destination selection method and device for selecting a route and a partner to which a terminal is connected. More specifically, the present invention relates to a user terminal device and a connection destination selection method for connecting to a communication network that provides a service that a user wants to use when services that can be used by a mobile communication network and a fixed communication network are different.

  There is RCS (Rich communication Suite) by GSMA RCS Project as a technology for rich communication services (hereinafter referred to as “RCS service”) such as presence, content sharing, and chat other than voice. RCS originally assumes a mobile network, but it is a connection target from a terminal connected to a fixed communication network later. This method provides a mobile communication network service by fixedly establishing an IPSec tunnel from a fixed terminal to the mobile communication network on the assumption that the service is provided in the mobile communication network (see Non-Patent Document 1, for example). .

"Rich communication suite Release 2 Technical Realization" http://www.gsmvorld.com/documents/TecnicalRealization_v1.1(1).pdf

  In the above prior art (Non-Patent Document 1), when accessing from a fixed terminal, an IPSec tunnel is set up with a PDG (Packet Data Gateway) in the mobile communication network, and a session control device in the mobile communication network is established. It is a format that uses. However, in this method, even if a service can be provided by a fixed communication network, the terminal cannot communicate with the session control device of the fixed communication network. Therefore, when the fixed communication network provides an original service, there is a problem that the service of the fixed communication network cannot be used (Problem 1).

  In addition, a method of using a session control device installed in the fixed communication network from the fixed communication network is also conceivable without using the method of Non-Patent Document 1 described above. However, in this case, since it is not possible to connect to the session control device of the mobile communication network via the PDG, there arises a problem that functions and services peculiar to the mobile communication network that are possible with the method of Non-Patent Document 1 cannot be used (Problem 2).

  The present invention has been made in view of the above points, and an object of the present invention is to provide a user terminal device and a connection destination selection method that allow a user to easily enjoy a service that can be provided only in a specific communication network. And

In order to solve the above-described problems, the present invention (Claim 1) is a user terminal device having a function of connecting to two or more communication networks when services available for the mobile communication network and the fixed communication network are different. There,
For each service, history storage means for storing at least the type of communication network that used the service and the last use date and time as history information;
Service menu storage means for storing a service menu usable for each communication network;
Input means for receiving power-on and service request from the user;
A first determination unit for selecting a communication network using information in the history information storage unit at the time of power-on;
A second determination unit that refers to the service menu storage unit when the service request is input and determines whether the requested service is available in the currently used communication network;
First network switching means for switching to the communication network selected by the first determination means;
If it is determined by the second determination means that it can be used, it is connected to the communication network that has been used so far, and if it is determined that it cannot be used, refer to the service menu storage means. Second network switching means for switching the requested service to an available communication network;
It is characterized by having.

  The present invention (Claim 2) provides the first determination means with means for selecting a communication network used at a time closest to the current time by referring to the history information storage means when the power is turned on. Including.

In the present invention (Claim 3), the history storage means further stores the number of uses for each service,
In the first determination means,
Means for determining which service use frequency of the fixed communication network or the mobile communication network is high with reference to the history storage means when the power is turned on;
In the first network switching means,
As a result of the determination by the first determination means, a means for switching to a communication network having a higher usage frequency is included.

Further, the present invention (Claim 4) is provided when a service is provided only in a communication network that requires communication by encryption.
In the first determination means,
When the power is turned on, the history information storage means is referred to, and when the frequency of use of the fixed communication network is lower than the frequency of the mobile communication network, the history information storage means is referred to, and the RCS (Rich communication Suite) service is used. Means for determining whether the frequency is higher than the usage frequency of the fixed communication network;
In the first network switching means,
When the first determination means determines that the frequency of use of the RCS service is higher than the frequency of use of the fixed communication network, the first determination means connects to the mobile communication network using an IPSec tunnel, and uses the RCS service. If it is determined that the frequency is lower than the frequency of use of the fixed communication network, means for connecting to the fixed communication network is included.

Further, the present invention (Claim 5), when connected to the mobile communication network when the service request is input,
In the second determination means,
Means for determining whether the speed requested by the input service exceeds the processing capability of the terminal;
In the second network switching means,
If the determination means exceeds the processing capability, the determination means includes means for switching to a fixed communication network.

Further, according to the present invention (Claim 6), a user terminal device having a function of connecting to two or more communication networks enjoys a desired service when the services available for the mobile communication network and the fixed communication network are different. A connection destination selection method for selecting a communication network for
The user terminal device
For each service, history storage means for storing at least the type of communication network that used the service and the last use date and time as history information;
Service menu storage means for storing a service menu usable for each communication network;
Have
When power is turned on by a user, a first determination step of selecting a communication network using information in the history information storage means;
A first network switching step for switching to the communication network selected in the first determination step;
When a service request is input from the user, a second determination is made based on the service request by referring to the service menu storage means to determine whether the requested service is available in the currently used communication network Steps,
A second network switching step of switching the requested service to a usable communication network when the requested service is not available in the currently used communication network in the second determination step;
I do.

Moreover, this invention (Claim 7) is a said 1st determination step,
With reference to the last use date and time of the history information storage means, the communication network used at the time closest to the current time is selected.

In the present invention (Claim 8), when the number of uses for each service is further stored in the history storage unit,
In the first determination step,
At the time of power-on from the user, referring to the usage count for each service of the history information storage means to determine which service usage frequency of the fixed communication network or mobile communication network is high,
In the first network switching step,
In the first determination step, the communication network with the higher usage frequency is switched.

In addition, the present invention (Claim 9) provides a service provided only in a communication network that requires communication by encryption.
In the first determination step,
When power is turned on by the user, the history information storage means is referred to, and when the frequency of use of the fixed communication network is lower than the frequency of the mobile communication network, the history information storage means is referred to and RCS (Rich communication Suite) Determining whether the usage frequency of the service is higher than the usage frequency of the fixed communication network;
In the first switching step,
When the usage frequency of the RCS service is higher than the usage frequency of the fixed communication network, use the IPSec tunnel to connect to the mobile communication network, and the usage frequency of the RCS service is lower than the usage frequency of the fixed communication network Connects to the fixed communication network.

Further, the present invention (Claim 10), when connected to the mobile communication network when the service request is input,
In the second determination step,
Determine whether the speed requested by the entered service exceeds the processing capability of the terminal,
In the second network switching step,
If the processing capacity is exceeded, switch to the fixed communication network.

  As described above, according to the present invention, when there is a service that provides only a specific communication network by selecting a network to be connected according to the service that the user has used so far when the power is turned on, The user can enjoy the service.

  Further, in a service in which the user gives an instruction to start the service, even when the service is not provided in the communication network, the service can be enjoyed by changing the connection destination.

It is a network block diagram to which the present invention is applied. It is a block diagram of the fixed terminal in the 1st Embodiment of this invention. It is an example of the log | history memory | storage part in the 1st Embodiment of this invention. It is a flowchart of operation | movement when the power supply in the 1st Embodiment of this invention turns into an ON state. It is a flowchart of the operation | movement at the time of the service start in the 1st Embodiment of this invention. It is an example of the log | history memory | storage part in the 2nd Embodiment of this invention. It is a flowchart of operation | movement when the power supply in the 2nd Embodiment of this invention will be in an ON state. It is a flowchart of the operation | movement at the time of the service start in the 2nd Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment]
FIG. 1 shows a network configuration to which the present invention is applied.

  The network of the present invention includes a fixed communication network 1, a mobile communication network 2, a fixed communication network 1 and a fixed terminal 100 connectable to the mobile communication network 2, a fixed communication network session control device 200, and a mobile communication network session control. A device (CSCF) 300 and a PDG 400 of the mobile communication network 2 are provided, and when accessing from the fixed terminal 100, an IPSec tunnel 210 is set between the PDG 400 in the mobile communication network 2. Each of the fixed communication network 1 and the mobile communication network 2 has an IMS (IP Multimedia Subsystem). However, one session control device may be shared.

  The fixed terminal 100 selects a connection destination according to a predetermined condition when the power is turned on, and when an explicit service start request is received from the user, the fixed terminal 100 is selected when the power is turned on according to a request condition from the started service. It has a function to change the CSCF of the connection destination.

  FIG. 2 shows the configuration of the fixed terminal in the first embodiment of the present invention.

  The fixed terminal 100 includes a power source 110, a user interface (I / F) 120, a determination unit 130, a history storage unit 140, a menu file 145, and a switching unit 150.

  Here, the history storage unit 140 and the menu file 145 are storage media such as a memory or a disk device. As shown in FIG. 3, the history storage unit 140 stores a service name, a network used, and a use date and time. Since the history is accumulated for each service used in the history storage unit 140, when the storage area is insufficient, the usage date is discarded from the oldest or the usage history before a certain period is used. It can be discarded.

  The menu file 145 stores a service name and a communication network type.

  Hereinafter, an operation at power-on and an operation of the fixed terminal 100 when a service is started by the user will be described.

  A case where the history storage unit 140 shown in FIG. 3 is used will be described.

  When the power is turned on by the user, the determination unit 140 refers to the history storage unit 140, selects a communication network with the most recent use date and time from the fixed communication network or the mobile communication network, and switches the switching unit 150. Switch to the selected communication network and connect. In this case, in the example of FIG. 3, “mobile communication network” of item number 2 is selected.

  Next, an operation when a service request is input from the user via the user I / F 120 will be described.

  FIG. 4 is a flowchart of the operation at the start of the service in the first embodiment of the present invention.

  When the service is instructed by the user via the user I / F 120, the determination unit 130 refers to the menu file 145 to determine whether the service specified by the user can be used in the currently used communication network. If it can be used (step 101, Y), the switching unit 150 does not switch the communication network. On the other hand, when it cannot be used (step 101, N), the switching unit 150 switches to a communication network that can use the service designated by the user (step 102).

  For example, when a “service B” is designated by a user when a fixed communication network is currently used, it is determined whether the “service B” is provided by a fixed communication network or a mobile communication network. This is determined with reference to the menu file 145. This is a case where when the user gives an instruction to start a service, the instructed service can be used only in one of the communication networks, and a communication network that can use the specified service regardless of the currently connected communication network. To connect to.

  Next, a case where the history information stored in the history storage unit includes the number of uses for each service will be described. FIG. 5 shows an example of a history storage unit that stores history information including the number of uses for each service.

  As shown in the figure, the history storage unit 140 stores the service used, the type of network used, the number of times used so far, and the last use date and time. The number of times of use is updated by counting up the item “number of times used so far” corresponding to the service name (service ID) each time the service is used.

  An operation at power-on when the history information shown in FIG. 5 is used will be described below.

  FIG. 6 is a flowchart of the operation when the power supply is turned on in the first embodiment of the present invention.

  When the power supply 110 is turned on, the determination unit 130 refers to the history storage unit 140 (step 201), determines whether the service usage frequency specific to the fixed communication network is high in the history so far, and the switching unit 150 If the usage frequency of the fixed communication network is higher (step 202, Y), it is selected to connect to the IMS on the fixed communication network side (step 203). On the other hand, when the usage frequency of the mobile communication network is higher (step 202, N), it is selected to connect to the IMS on the mobile communication network side (step 204). For example, in the case of the history storage unit 140 illustrated in FIG. 5, since the network with a large number of uses is a fixed communication network, the switching unit 150 switches to the fixed communication network 1.

  In addition to the history storage unit 140, the communication partner user ID and the communication partner communication network type are registered in a communication destination registration file (not shown) in the fixed terminal 100, and the history storage is performed. Instead of the unit 140, it is also possible to connect to a communication network corresponding to the communication destination ID by referring to the communication destination registration file based on the communication destination user ID.

  Further, the information of the history storage unit 140 and the information of the communication destination registration file are merged and stored, and the terminal (user ID) registered as the communication destination according to the service used by the fixed terminal 100 so far. It is also possible to select a connection destination according to the communication network.

  Furthermore, the item number of the communication network that can be used only in the i ∈ fixed communication network,

を求め、ｊ∈移動通信網でのみ利用可能な通信網の項番とし、

, And the item number of the communication network that can be used only in the j∈ mobile communication network,

を求め、値が大きい方を選択する。但し、n(i)，n(j)は利用回数、α（k）は最終利用日時が直近から数えてｋ番目のサービスに対する重み計数とする。但し、α(k)≧α（k+1）とする。

And select the one with the larger value. However, n (i) and n (j) are the number of times of use, and α (k) is a weighting coefficient for the kth service from the latest use date / time. However, α (k) ≧ α (k + 1).

  In the above example, the case where there are two communication networks is shown. However, when there are three or more communication networks, it is also possible to determine the connection destination communication network according to a preset priority. .

[Second Embodiment]
In this embodiment, an example is shown in which encryption is essential in one communication network (mobile communication network).

  FIG. 7 is a flowchart of the operation when the power supply is turned on in the second embodiment of the present invention. In the example shown in the figure, it is assumed that there is a condition that it is essential to perform encryption in the mobile communication network 2.

  When the power supply 110 is turned on, the determination unit 130 refers to the history storage unit 140 illustrated in FIG. 5 to determine whether the user uses the fixed communication network or the mobile communication network, and the fixed unit When the frequency of using the communication network is high (step 301, Y), it is selected to connect to the IMS on the fixed communication network 1 side without using the IPsec tunnel 210 (step 304). When the frequency of using the mobile communication network 2 is higher (step 301, N), the history storage unit 140 is referred to, and the users who have used the RCS service so far are the fixed communication network 1 and the mobile communication network 2. It is determined which usage frequency is high, and if the fixed communication network 1 is more frequent (step 302, Y), the same processing as the above step 304 is performed. On the other hand, if there are more mobile communication networks 2 (step 302, N), it is selected to connect to the IMS on the mobile communication network 2 side using the IPsec tunnel 210 (step 303).

  When history information as shown in FIG. 6 is stored, as a method for selecting a communication network other than the above, if the necessary bandwidth is larger than the speed of transmission and reception by encryption, communication that does not require encryption Select the network (fixed communication network).

[Third Embodiment]
In this embodiment, a case will be described in which a connection destination is selected according to the capability of a fixed terminal.

  The configuration of the user terminal device in the present embodiment is the same as that of the above-described embodiment.

  FIG. 8 is a flowchart of the operation at the time of starting the service in the third embodiment of the present invention. It is assumed that capability information such as the processing speed of the self-fixed terminal can be acquired as a premise of the following processing.

  When a service request is input from the user via the user I / F 120, the determination unit 140 determines whether the speed requested by the service exceeds the capability of the terminal itself, and if so (step 401). , Y), and when currently connected to the mobile communication network, the switching unit 150 switches to the fixed communication network (step 403). If the service speed does not exceed the capability of the terminal (step 401, N), whether the requested service uses a mechanism specific to the fixed communication network such as bandwidth guarantee in the fixed communication network, for example. In the same manner as described above, the switching unit 150 switches to the fixed communication network (step 403).

  On the other hand, when the requested service speed does not exceed the capability of the terminal (step 401, N) and the service does not use a mechanism specific to the fixed communication network (step 402, N), the power is turned on. The service is started as it is (step 404).

  The operation in the components of the fixed terminal in the embodiment shown in FIG. 2 is constructed as a program and installed in a computer used as a fixed terminal connectable to the fixed communication network and the mobile communication network, or via the network Can be distributed.

  Further, the constructed program can be stored in a portable storage medium such as a hard disk, a flexible disk, or a CD-ROM, and installed in a computer or distributed via a network.

  The present invention is not limited to the above-described embodiment, and various modifications and applications can be made within the scope of the claims.

DESCRIPTION OF SYMBOLS 1 Fixed communication network 2 Mobile communication network 100 Fixed terminal 110 Power supply 120 User interface 130 Determination part 140 History storage part 145 Menu file 150 Switching part 200,300 Session control apparatus 210 IPsec tunnel 400 PDG (Packet Data Gateway)

Claims (10)

A user terminal device having a function of connecting to two or more communication networks when services available for the mobile communication network and the fixed communication network are different,
For each service, history storage means for storing at least the type of communication network that used the service and the last use date and time as history information;
Service menu storage means for storing a service menu usable for each communication network;
Input means for receiving power-on and service request from the user;
A first determination unit for selecting a communication network using information in the history information storage unit at the time of power-on;
A second determination unit that refers to the service menu storage unit when the service request is input and determines whether the requested service is available in the currently used communication network;
First network switching means for switching to the communication network selected by the first determination means;
If it is determined by the second determination means that it can be used, it is connected to the communication network that has been used so far, and if it is determined that it cannot be used, refer to the service menu storage means. Second network switching means for switching the requested service to an available communication network;
A user terminal device comprising: The first determination means includes
The user terminal device according to claim 1, further comprising means for selecting a communication network used at a time nearest to the current time with reference to the history information storage means when the power is turned on. The history storage means further stores the number of uses for each service,
The first determination means includes
Means for determining which service use frequency of the fixed communication network or the mobile communication network is high with reference to the history storage means when the power is turned on;
The first network switching means includes
The user terminal device according to claim 1, further comprising means for switching to a communication network having a higher usage frequency as a result of the determination by the first determination means. If the service is provided only on a communication network that requires encryption communication,
The first determination means includes
When the power is turned on, the history information storage means is referred to, and when the frequency of use of the fixed communication network is lower than the frequency of the mobile communication network, the history information storage means is referred to, and the RCS (Rich communication Suite) service is used. Means for determining whether the frequency is higher than the usage frequency of the fixed communication network;
The first network switching means includes
When the first determination means determines that the frequency of use of the RCS service is higher than the frequency of use of the fixed communication network, the first determination means connects to the mobile communication network using an IPSec tunnel, and uses the RCS service. 4. The user terminal device according to claim 3, further comprising means for connecting to the fixed communication network when it is determined that the frequency is lower than the use frequency of the fixed communication network. When connected to the mobile communication network when the service request is input,
The second determination means includes
Means for determining whether the speed requested by the input service exceeds the processing capability of the terminal;
The second network switching means is
The user terminal device according to claim 1, further comprising means for switching to a fixed communication network when the processing capacity exceeds the determination means. Connection destination selection for selecting a communication network for enjoying a desired service in a user terminal device having a function of connecting to two or more communication networks when the services available for the mobile communication network and the fixed communication network are different A method,
The user terminal device
For each service, history storage means for storing at least the type of communication network that used the service and the last use date and time as history information;
Service menu storage means for storing a service menu usable for each communication network;
Have
When power is turned on by a user, a first determination step of selecting a communication network using information in the history information storage means;
A first network switching step for switching to the communication network selected in the first determination step;
When a service request is input from the user, a second determination is made based on the service request by referring to the service menu storage means to determine whether the requested service is available in the currently used communication network Steps,
A second network switching step of switching the requested service to a usable communication network when the requested service is not available in the currently used communication network in the second determination step;
The connection destination selection method characterized by performing. In the first determination step,
The connection destination selection method according to claim 6, wherein a communication network used at a time nearest to the current time is selected with reference to the last use date and time of the history information storage unit. When the usage count for each service is further stored in the history storage means,
In the first determination step,
At the time of power-on from the user, referring to the usage count for each service of the history information storage means to determine which service usage frequency of the fixed communication network or mobile communication network is high,
In the first network switching step,
The connection destination selection method according to claim 6, wherein in the first determination step, the communication network is switched to a communication network having a higher usage frequency. If the service is provided only on a communication network that requires encryption communication,
In the first determination step,
When power is turned on by the user, the history information storage means is referred to, and when the frequency of use of the fixed communication network is lower than the frequency of the mobile communication network, the history information storage means is referred to and RCS (Rich communication Suite) Determining whether the usage frequency of the service is higher than the usage frequency of the fixed communication network;
In the first switching step,
When the usage frequency of the RCS service is higher than the usage frequency of the fixed communication network, use the IPSec tunnel to connect to the mobile communication network, and the usage frequency of the RCS service is lower than the usage frequency of the fixed communication network 9. The connection destination selection method according to claim 8, wherein the connection destination is connected to the fixed communication network. When connected to the mobile communication network when the service request is input,
In the second determination step,
Determine whether the speed requested by the entered service exceeds the processing capability of the terminal,
In the second network switching step,
The connection destination selection method according to claim 6, wherein when the processing capacity is exceeded, switching to a fixed communication network is performed.

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