WO2017051916A1

WO2017051916A1 - Notification method and notification server for sending push notifications to portable terminal

Info

Publication number: WO2017051916A1
Application number: PCT/JP2016/078129
Authority: WO
Inventors: 辰雄山岸; 恭一河本; 雄柱李; 俊笠原
Original assignee: 株式会社カタリナ
Priority date: 2015-09-25
Filing date: 2016-09-23
Publication date: 2017-03-30

Abstract

Instead of sending a push notification using a remote notification service which can be used by the operating system of each portable terminal as practiced in the past, as shown in Fig. 1, a session is established between a notification server 110 sending a notification and a portable terminal 120 as the destination of the notification, and push notification information is transmitted to the portable terminal 120 in the session. Sessions established between the notification server 110 and the portable terminals 120 are stored in a storage unit 112 of the notification server 110 in association with terminal identifiers for the portable terminals 120. Consequently, the notification server 110 is able to deliver any push notification, including rich content such as still images and motion pictures, to any terminal at any time with a high degree of flexibility, provided that sessions have been established therebetween.

Description

Notification method and notification server for performing push notification to portable terminal

The present invention relates to a notification method and notification server for performing push notification to a mobile terminal.

In recent years, the spread of portable terminals such as smartphones and tablets has been rapidly advancing. One of the features of such a mobile terminal is that an OS such as iOS or Android is installed, and various information processing can be performed by installing various applications (also referred to as "applications") on functions provided by the OS. The point is

Many app providers use push notification to users for the purpose of improving the user's activity rate.

The push notification is performed using a remote notification service (APNs in iOS, GCM in Android) that can be used by each OS such as iOS and Android. In the remote notification service, it manages the terminal that is the distribution destination of the communication and the identifier of the application installed on the terminal, respectively, and from the provider of the application or its agency, the terminal identifier, the application identifier, and the message that becomes notification content When received, the notification associated with the specified application is sent to the specified terminal.

The types of notification include pop-up notification called toast notification, status notification displaying an icon on the status bar, and the like.

JP, 2015-149070, A

Conventional push notifications, in any form, have limited information that can be included due to the limitations of the remote notification service available to each OS. For example, Patent Document 1 discloses a system for performing promotion of a mobile game by push notification, and as a promotion message, a confirmation key capable of confirming detailed contents of game information is exemplified, and the confirmation key It has been described that the user can select to allow the mobile terminal to connect to the system and receive details, or to install or run a promoted game. As push notification, the user is only given a simple message such as a text message.

The inventors of the present invention have found that push notification can be realized without necessarily using a remote notification service that each OS can use as in the prior art, and has made the present invention. It is possible to design the push notification with a higher degree of freedom without being restricted by the conventional constraints.

The present invention has been made in view of such problems, and an object thereof is to enable push notification with a high degree of freedom in a notification method and a notification device for performing push notification to a portable terminal. is there.

In order to achieve such an object, a first aspect of the present invention is a notification server for displaying a push notification on a portable terminal, wherein the portable terminal establishes a session established with the portable terminal. And a communication unit for transmitting push notification information to the portable terminal on a session stored together with the terminal identifier of the portable terminal.

Further, according to a second aspect of the present invention, in the first aspect, the communication unit transmits the push notification information without requiring a request from the portable terminal.

Further, according to a third aspect of the present invention, in the second aspect, the notification unit refers to a session table storing a correspondence between a terminal identifier and a session based on the terminal identifier input to the notification server. The transmission of the push notification information is performed using a session specified in the following manner.

Further, according to a fourth aspect of the present invention, in any one of the first to third aspects, the session stored in the storage unit is also associated with an application identifier of an application installed in the portable terminal, and the communication The unit is characterized in that push notification information is transmitted to the application operating on the portable terminal on the session associated with the terminal identifier and the application identifier.

Further, according to a fifth aspect of the present invention, in the fourth aspect, the notification unit stores the correspondence between the terminal identifier and the application identifier and the session based on the terminal identifier and the application identifier input to the notification server. The push notification information is transmitted using a session specified with reference to a session table.

Further, according to a sixth aspect of the present invention, in the fourth or fifth aspect, the application is an application for browsing a web page.

Further, according to the seventh aspect of the present invention, in any of the fourth to sixth aspects, the communication unit transmits the push notification information when the application is in a foreground state. I assume.

In the eighth aspect of the present invention according to any one of the first to third aspects, the session stored in the storage unit is also associated with a web identifier for identifying web content, and the communication unit is Push notification information is transmitted to a display screen of an application for browsing web content operating on the portable terminal on the session associated with the terminal identifier and the web identifier.

Further, according to a ninth aspect of the present invention, in the eighth aspect, the notification unit stores the correspondence between the terminal identifier and the web identifier and the session based on the terminal identifier and the web identifier input to the notification server. The push notification information is transmitted using a session specified with reference to a session table.

Further, according to a tenth aspect of the present invention, in the eighth or ninth aspect, transmission of the push notification information is performed when web content identified by the web identifier is displayed on the display screen. It is characterized by

Further, according to an eleventh aspect of the present invention, in any one of the eighth to tenth aspects, the web identifier is a URL of a web site including the web content.

The twelfth aspect of the present invention is characterized in that, in any of the fourth to eleventh aspects, the session is maintained while the application is activated.

The thirteenth aspect of the present invention is characterized in that, in any one of the fourth to twelfth aspects, the session is established upon activation of the application.

In a fourteenth aspect of the present invention according to any one of the first to thirteenth aspects, the session conforms to the WebSocket standard.

In the fifteenth aspect of the present invention according to any one of the first to fourteenth aspects, the notification content of the push notification information includes at least one of a character, a still image and a moving image. Do.

Further, according to a sixteenth aspect of the present invention, in any one of the first to fifteenth aspects, the push notification by the push notification information is displayed as a pop-up on the display screen of the portable terminal.

A seventeenth aspect of the present invention is characterized in that, in any one of the first to sixteenth aspects, the push notification is arranged in at least a part of a display screen of the portable terminal.

In addition, an eighteenth aspect of the present invention is characterized in that, in the seventeenth aspect, the push notification is arranged as a wipe for a live video.

Further, in a nineteenth aspect of the present invention according to any one of the first to eighteenth aspects, the communication unit does not store a session established with the portable terminal in the storage unit. Requesting a provisional push notification to the mobile terminal by transmitting a terminal identifier and an application identifier of an application installed in the mobile terminal to a remote notification service that can use an OS installed in the mobile terminal It is characterized by

Also, in a twentieth aspect according to the twentieth aspect of the present invention, the remote notification service is APNs or GCM.

In addition, according to a twenty-first aspect of the present invention, in the nineteenth or twentieth aspect, the temporary push notification activates an application identified by the application identifier by being tapped or clicked, the storage The unit associates a session established between the portable terminal and the management server by associating the temporary push notification with the terminal identifier of the portable terminal for which tap or click was made and the application identifier of the application activated by the tap or click. It is characterized by storing.

Further, according to a twenty-second aspect of the present invention, in the twenty-first aspect, the communication unit transmits a push notification to the portable terminal on the session in response to the storage of the session in the storage unit. It is characterized by transmitting information.

Further, in a twenty-third aspect of the present invention according to the twenty-second aspect, the communication unit transmits the push notification information without requiring a request from the portable terminal.

A twenty-fourth aspect of the present invention is a notification method for displaying a push notification on a portable terminal, which stores a session established with the portable terminal in association with a terminal identifier of the portable terminal. And sending push notification information to the mobile terminal on a session stored together with the terminal identifier of the mobile terminal.

A twenty-fifth aspect of the present invention is a program for causing a computer to execute a notification method for causing a portable terminal to display a push notification, the notification method being established between the portable terminal and the portable terminal. Storing the session information in association with the terminal identifier of the portable terminal, and transmitting push notification information to the portable terminal on the session stored together with the terminal identifier of the portable terminal. It features.

According to one aspect of the present invention, instead of performing push notification using a remote notification service that each OS of the portable terminal can use as in the prior art, a notification server that makes a notification and a portable terminal that is a notification destination In order to establish a session and transmit push notification information to the mobile terminal on the session, it is possible to enable flexible push notification, for example, to increase the user's recognition of the push notification.

It is a figure which shows the relationship between the notification server concerning this invention, and a portable terminal. It is a figure which shows the example of a display of the push notification to the web content concerning one Embodiment. FIG. 5 illustrates a method for establishing a session according to one embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Summary of the Invention)
The present invention does not perform push notification using the remote notification service available to each OS of the portable terminal as in the prior art, but as shown in FIG. A session is established with the terminal 120, and on the session, push notification information is transmitted to the mobile terminal 120.

The notification server 110 includes a processing unit 111 such as a CPU, a storage unit 112, and a communication unit 113, and realizes a function described below by executing a predetermined program. The storage unit 112 stores a session established between the notification server 110 and the portable terminal 120 in association with the terminal identifier of the portable terminal 120. The terminal identifier may be, for example, an IP address.

The session can be compliant with the WebSocket standard. Although communication in the downward direction from the notification server 110 to the mobile terminal 120 is necessary to perform push notification on a session, bi-directional communication, in particular full-duplex communication becomes possible by using the WebSocket. That is, the notification server 110 can deliver the push notification at any timing without requiring a request from the portable terminal 120.

The identification of the notification destination to which the notification unit 112 performs the push notification stores the session table storing the correspondence between the terminal identifier and the session in the storage unit 113 based on the terminal identifier input to the notification server 110. This can be done by referring to the session table and identifying the session. The notification server 110 may adopt a batch process in which a distribution destination list including a plurality of distribution destinations is read and push notification is performed on the identified session.

Each session can also be associated with the application identifier of the application installed in the portable terminal 120. In this case, the communication unit 112 operates on the portable terminal 120 on the session associated with the terminal identifier and the application identifier. Push notifications can be sent to the app. The application identifier includes, for example, a reverse domain format (a package name is described in a reverse domain notation and a unique identification method is used). The identification of the notification destination can also be performed by storing the application identifier in the session table and referring to the session table based on the terminal identifier and the application identifier input to the notification server 110. The terminal identifier and the application identifier may be separate identifiers, or an identifier that identifies one set of terminal and application may be used. The application can be, for example, an application for browsing a web page. Also, push notification information can be transmitted when the application is in the foreground state.

The notification content of the transmitted push notification information can include at least one of characters, still images, moving images, and 3D content, and is displayed as a pop-up on the display screen of the portable terminal 120. Specifically, when the mobile terminal 120 receives the push notification information, the mobile terminal 120 analyzes the content binary data included in the push notification information and the structured data constituting the web page such as HTML, CSS, JS, etc. Then, the push notification is displayed by assembling the content and the structured data on the display screen of the mobile terminal 120 and reconstructing the web page as a pop-up.

The notification content may be created by the application provider, and may be stored in an attached content management system (CMS) (not shown) to which the notification server 110 or the notification server 110 can connect.

The push notification can be disposed on at least a part of the display screen of the portable terminal 120, and the position, size, and shape can be adjusted according to the application.

By doing this, the notification server 110 according to the present invention includes rich content such as still images and moving images at any timing on any terminal, as long as a session is established (described later). Arbitrary push notifications can be delivered with a high degree of freedom. Since the request from the portable terminal 120 can be made unnecessary, energy saving of the portable terminal 120 can be achieved. Further, when notification is made in response to a request from the portable terminal 120, the waiting time of the request is delayed. According to the present invention, high-speed push notification can be realized.

(Push notification to web content)
In one embodiment of the present invention, a session is established in association with a web identifier that identifies web content, such as a web page, operating on portable terminal 120, and as shown in FIG. Send push notification information to the display screen of the application for browsing web content that operates in

The web identifier includes, for example, the URL of a web site including web content. In this case, the notification server 110 first determines whether the URL associated with the session is viewed on the portable terminal 120 or a module establishing a full-duplex communication state with the notification server 110 read by the website. If it is viewed, send push notification information. When the mobile terminal 120 receives the push notification information, the mobile terminal 120 analyzes the content binary data included in the push notification information and the structured data constituting the web page such as HTML, CSS, JS, etc. Display the push notification by assembling the content and structured data on the display screen and popping up and rebuilding the web page.

By doing this, it is possible to perform push notification directly on web content such as a web page.

If the application accesses a specific URL, the application identifier may be a web identifier.

Also, when a push notification is given to a web page, it may be expressed in a different expression such as a banner form that is not a pop-up so as not to disturb the browsing of the site (content) that the user is browsing.

(Session management)
Session management according to the present invention includes several embodiments.

Each session, when associated with an app, can be established with app launch and maintained while the app is launched.

The application may transmit the push notification information only in the foreground state while maintaining the session in both the foreground and background states.

In addition, when each session is associated with a URL, it can be discarded in response to transition from the URL to another URL.

(How to establish a session)
The method for establishing a session according to the present invention can be roughly classified into at least two. The first method is a method of incorporating a module for session establishment in an application operating on the mobile terminal 120. When the application is activated on the portable terminal 120, the module is executed to determine the presence or absence of a session with the management server 110, and if there is no session, the portable terminal 120 requests the management server 110 to establish a session. At the same time, the terminal identifier or the terminal identifier and the application identifier are transmitted to establish a session, and the newly established session is stored in the session table stored in the storage unit 113 of the management server 110. The management server 110 can determine the received request based on the terminal identifier or the terminal identifier and the application identifier in order to establish a session, and can establish a session by returning a response if it is a target client.

In the second method, when a module for session establishment is stored in a web server accessed by an application for browsing web content operating on the portable terminal 120 and the web server is accessed from the portable terminal 120 , The web content, and the module is transmitted to the portable terminal 120. In the mobile terminal 120, the application executes the module to establish a session. The module may be stored in a web server, or may be stored on another server that can be connected from the web server. Placing it on another server facilitates maintenance such as module update.

For example, when the operator designates the notification destination of the push notification from the management screen provided on the notification server 110, the notification server 110 determines the presence or absence of a session with each notification destination (S301). When a session is established, push notification is performed (S302), but when a session is not established, a push notification (also referred to as "provisional push notification") is tentatively used using a remote notification service available to each OS. ) Can be performed (S303). When the user taps or clicks the temporary push notification, a session can be established between the notification server 110 and the portable terminal 120 according to the first or second method (S304).

In the management server 110, for example, a flag is set in the session table to hold that the session corresponding to the terminal identifier and the application identifier designated as the notification destination has not been established, and while the flag is set. In response to the newly established session, the notification content is acquired from the CMS or the like in the same manner as during establishment, and push notification is performed on the display screen of the application on the established session.

(User action history)
When a session is established between the notification server 110 and the mobile terminal 120, the notification server 110 can receive a user identifier such as a fingerprint from the mobile terminal 120 over the session. “Fingerprint” means at least at least the type and version of browser, the type and version of OS, screen resolution, available fonts, plug-ins, time zone, language and font settings, hardware configuration information, etc. A combination of two or more to identify the user based on the difference.

The session establishment module or a separate history acquisition module is provided with a function of acquiring the user identifier and transmitting it to the notification server 110, for example, the user accessing the first web page using the portable terminal 120 , And a user action history such as access to a second web page different from the first web page from the first web page to the notification server 110 and transmitted from the storage unit 112 of the notification server 110 or the communication server 110 It may be stored in an accessible storage unit.

When the notification server 110 receives the user identifier of the portable terminal 120 at the time of session establishment or at a predetermined timing after the session establishment, referring to the past user behavior history associated with the received user identifier, It is possible to determine the notification content of the push notification to the mobile terminal 120 on the session. As an application example referring to the user behavior history, for example, referring to the information viewed from the detail page of the product which is the first web page, the product having interest in the first web page in the second web page It is possible to make a recommendation notification of

(Guide and link between web pages)
Although there is a huge number of web pages, if there is a method for efficiently collecting access to newly created web pages, it is highly desirable, but in one aspect of the present invention, it is a single shot. Instead of the push notification, a push notification associated with a new web page different from the existing web page is transmitted to the user who has accessed the existing web page during a predetermined period. For example, it can be a push notification that includes the URL of the new web page in the notification content.

The problem brought about by the difficulty in providing an efficient connection to the newly created web page is that the top page of the website including the newly created web page is the above existing web page. Particularly remarkable effects are obtained. The top page, which has many headlines on articles, has many visitors, but many users transition to lower-level web pages in a short time. It is not easy to deliver, but you can capture many users by continuing to push notifications for a given period of time.

In addition to the top page of the web site that includes the new web page, it is equally effective to use the top page of the web site associated with the new web page.

It may also be useful to maintain the session while the user is in the same domain, for which purpose the mobile terminal 120 may send keep_alive packets to the server 110.

(Video wipe)
In the case where a moving picture, particularly a sports game such as an Olympics or high school baseball game, a rocket launch, a live moving picture such as a concert is targeted as notification contents of the push notification, in one aspect of the present invention, display is performed as a wipe. In the present specification, “wipe” is used as a term indicating a different image by providing a smaller area at a corner of the display area or referring to the display area.

The nature of push notifications, in some cases, tends to be an obstacle to the web content that users are trying to display. There is a high possibility that the issue that the distributor side wants to display prior to the browsing of the web content, such as an advertisement, a request for entering a login password to a website, a password change guide, an error display, etc. will not be so serious. However, considering the fact that the actual start date and time is known but the exact start date and time is not necessarily determined, the period until the start is the use of the user's web browser, considering that the user's web browser is displayed as a push notification. , May be an obstacle to other work.

In one aspect of the present invention, when the start time of the event or the scheduled start time of the event approaches, the live video as a wipe before a predetermined time such as 1 hour, 30 minutes, 10 minutes, 5 minutes, 1 minute, etc. Make push notifications of The placement position of the wipe can be at the lower right, upper right, upper left, lower left, etc. corners of the display area of the application such as a web browser, and the placement position of the wipe is fixed even if the displayed page is scrolled It can be done as it is. If the user wishes, he may drag the wipe to make its position variable.

The event targeted for the video wipe may be an event related to the web page displayed by the web browser or the content of the website, an event related to the interest of the user determined from the user's past behavior history, etc. . Alternatively, the notification server 110 may uniformly distribute to all or a part of notification destinations that can be notified.

The procedure for displaying the video wipe is as follows. First, push notification information is transmitted to the portable terminal 112. Next, the web browser of the portable terminal 112 executes a script included in the push notification information, associates it with the web browser, and generates a display area for wiping. Then, the live video is automatically reproduced in the wipe, or the reproduction is started in response to an input from the user to the wipe. Further, the wipe may be enlarged or displayed full screen in response to an input such as a tap or click from the user.

The animation displayed as a push notification may be a web page on which display is performed or an animation not provided on a website. Thus, when displaying something irrelevant or low to the web content the user is currently browsing, as described above, there is a significant risk that the web content that the user is trying to display will be an obstacle as a wipe. Can be reduced to

(Effect measurement)
The remote notification service provided by each OS can not confirm the effect of push notification, and it is difficult to make an effective push notification strategy. In the push notification according to the present invention using a session, the management server 110 can acquire information such as a user action after the push notification. For example, by providing a questionnaire function in the push notification and aggregating responses from users, etc., it becomes possible to analyze for more effective push notification.

(Load reduction)
There may be restrictions on the number of portable terminals to which the notification server 110 can connect, or the number of WebSocket sessions that can be established simultaneously. Therefore, in one aspect of the present invention, a push notification is performed to a second portable terminal in which a WebSocket session is not established via the first portable terminal in which a WebSocket session is established.

First, the second mobile terminal requests the notification server 110 to establish a WebSocket session. Next, when the notification server 110 determines that the number of established WebSocket sessions has reached a predetermined upper limit or the number of sessions, the notification server 110 returns a notification of establishment failure to the second mobile terminal. Here, the notification server 110 also returns the IP address of the first portable terminal in which the WebSocket session has been established. In this case, the second mobile terminal establishes a WebRTC session compliant with the WebRTC standard with the first mobile terminal using the WebSocket module or a separate WebRTC module. Then, when the first mobile terminal receives the push notification from the notification server 110, the first mobile terminal receives the push notification from the WebSocket module stored in the storage unit of the first mobile terminal or a separate WebRTC module and the WebRTC session with the current second mobile terminal. Is forwarded to the second mobile terminal in response to the establishment of the second mobile terminal.

In this way, in one aspect of the present invention, the load on the notification server 110 can be reduced.

(Others)
Rich push notifications using web expression technologies such as HTML, CSS, JS, etc. can be freely expressed. As the expression mode, programs such as text, images, sounds, moving images, transparent animations, 3D contents, games, etc. can be used, and the shape of the expression can also represent free shapes other than pop-ups.

In addition to push notifications that express information unilaterally as an additional function, push notifications incorporating game characteristics are possible, for example, push notifications of programs such as game tickets, and give benefits when the user's choice is hit Push notification is possible.

As an additional function, it is possible to perform a push notification in which the content of the push notification can not be confirmed unless the user enters a previously agreed password.

It is possible to send a push notification that does not appear to the user's eyes from the notification server 110 as a web silent push function, rewrite a part of the displayed web page and update a part of the page, or an advertisement area It is possible to change the ad content of and at any time.

110 notification server 111 processing unit 112 storage unit 113 communication unit 120 portable terminal

Claims

A notification server for displaying a push notification on a mobile terminal,
A storage unit that stores a session established with the portable terminal in association with a terminal identifier of the portable terminal;
A notification server comprising: a communication unit that transmits push notification information to the mobile terminal on a session stored together with the terminal identifier of the mobile terminal.
The notification server according to claim 1, wherein the communication unit transmits the push notification information without requiring a request from the mobile terminal.
The notification unit transmits the push notification information using a session specified with reference to a session table storing a correspondence between a terminal identifier and a session based on the terminal identifier input to the notification server. The notification server according to claim 2, characterized in that:
The session stored in the storage unit is also associated with an application identifier of an application installed on the mobile terminal,
4. The apparatus according to claim 1, wherein the communication unit transmits push notification information to the application operating on the portable terminal on the session associated with the terminal identifier and the application identifier. Notification server described in any one.
The notification unit uses the session identified with reference to a session table that stores the association between the terminal identifier and the application identifier and the session based on the terminal identifier and the application identifier input to the notification server. The notification server according to claim 4, wherein the notification information is transmitted.
The said application is an application for browsing a web page, The notification server of Claim 4 or 5 characterized by the above-mentioned.
The notification server according to any one of claims 4 to 6, wherein the communication unit transmits the push notification information when the application is in a foreground state.
The session stored in the storage unit is also associated with a web identifier for identifying web content,
The communication unit transmits push notification information to a display screen of an application for browsing web content operating on the portable terminal on the session associated with the terminal identifier and the web identifier. The notification server according to any one of claims 1 to 3, characterized in that:
The notification unit uses the session identified with reference to a session table storing the association between the terminal identifier and the web identifier and the session based on the terminal identifier and the web identifier input to the notification server. 9. The notification server according to claim 8, wherein transmission of notification information is performed.
10. The notification server according to claim 8, wherein transmission of the push notification information is performed when the web content identified by the web identifier is displayed on the display screen.
The notification server according to any one of claims 8 to 10, wherein the web identifier is a URL of a web site including the web content.
The notification server according to any one of claims 4 to 11, wherein the session is maintained while the application is activated.
The notification server according to any one of claims 4 to 12, wherein the session is established upon activation of the application.
The notification server according to any one of claims 1 to 13, wherein the session conforms to the WebSocket standard.
The notification server according to any one of claims 1 to 14, wherein the notification content of the push notification information includes at least one of a character, a still image, and a moving image.
The notification server according to any one of claims 1 to 15, wherein the push notification based on the push notification information is displayed as a pop-up on a display screen of the portable terminal.
The notification server according to any one of claims 1 to 16, wherein the push notification is arranged in at least a part of a display screen of the portable terminal.
The notification server according to claim 17, wherein the push notification is arranged as a wipe for live video.
The communication unit is a terminal identifier for a remote notification service that can be used by the OS installed in the portable terminal, when the session established with the portable terminal is not stored in the storage unit; The notification server according to any one of claims 1 to 18, wherein an application identifier of an application installed on the portable terminal is transmitted to request a provisional push notification to the portable terminal.
The notification server according to claim 19, wherein the remote notification service is APNs or GCM.
The temporary push notification is to start an application identified by the application identifier by tapping or clicking.
The storage unit is established between the portable terminal and the management server in association with a terminal identifier of the portable terminal on which the temporary push notification is tapped or clicked and an application identifier of an application activated by the tap or click. 21. The notification server according to claim 19 or 20, which stores a session.
22. The notification server according to claim 21, wherein the communication unit transmits push notification information to the portable terminal on the session in response to the session being stored in the storage unit. .
The notification server according to claim 22, wherein the communication unit transmits the push notification information without requiring a request from the portable terminal.
A notification method for displaying a push notification on a mobile terminal,
Storing a session established with the portable terminal in association with a terminal identifier of the portable terminal;
Transmitting push notification information to the portable terminal over the session stored together with the terminal identifier of the portable terminal.
A program for causing a computer to execute a notification method for causing a mobile terminal to display a push notification, the notification method comprising
Storing a session established with the portable terminal in association with a terminal identifier of the portable terminal;
Transmitting push notification information to the portable terminal on a session stored together with the terminal identifier of the portable terminal.