JP6251210B2 - Terminal device, communication session establishment method, and program - Google Patents

Description

  The present invention relates to a terminal device, a communication session establishment method, and a program.

  As a conventional push (PUSH) type information distribution technology, for example, “Google Cloud Messaging (GCM)” described in Non-Patent Document 1 and “Apple Push Notification Service (APNS)” described in Non-Patent Document 2 are cited. It is done. Information notification by the push-type information distribution technology is generally called push notification. According to the push notification, information can be notified to the terminal autonomously from the server side without requesting information from the terminal.

Internet <URL: http://developer.android.com/guide/google/gcm/index.html> Internet <URL: https://developer.apple.com/jp/devcenter/ios/library/documentation/RemoteNotificationsPG.pdf>

  In recent years, a plurality of wireless communication networks have been constructed, and there are various wireless communication networks to which terminals are connected. For example, there are terminals that connect to a cellular network and terminals that connect to a wireless LAN. Under such circumstances, it is desirable that a communication session be established and maintained as much as possible in order to guarantee the speed and certainty of communication. However, the terminal may consume the battery due to establishment or maintenance of the communication session.

  The present invention has been made in consideration of such circumstances, and a terminal device, a communication session establishment method, and a computer capable of suppressing battery consumption of a terminal connected to a specific wireless communication network The challenge is to provide a program.

(1) According to one aspect of the present invention, a first wireless communication network access unit that establishes a connection with a specific first wireless communication network and transmits / receives a wireless signal to / from the first wireless communication network. And an acquisition unit that acquires a list of access point devices of the first wireless communication network, and a connection between the first wireless communication network access unit and the access point device of the first wireless communication network is established. If the access point device is present in the list , a communication session is established with the information distribution device via the first wireless communication network access unit, and the access point device If it is not present in the list, it is connected to the information distribution device via the first wireless communication network access unit. And an information receiving unit that does not establish a communication session at a time interval shorter than usual when the communication session is disconnected when connected to the specific access point device, A terminal device that attempts to re-establish a communication session .
(2) According to one aspect of the present invention, in the terminal device of (1), the information receiving unit sends a maintenance notification for maintaining the established communication session at a frequency according to a predetermined communication session maintenance condition. A terminal device that transmits to the information distribution device.
(3) According to one aspect of the present invention, in the terminal device according to (1) or (2), a connection is established with a specific second wireless communication network, and the second wireless communication network is connected. A second wireless communication network access unit for transmitting and receiving wireless signals, and the information receiving unit accesses information distributed from the information distribution device via the second wireless communication network to the second wireless communication network access It is a terminal device which receives via a part.
(4) In one aspect of the present invention, in the terminal device according to (3), the information receiving unit executes execution of establishment of the communication session, execution of maintenance, execution of disconnection, and the established communication session. The terminal device determines at least one of maintenance notification intervals for maintenance based on a connection establishment state with the second wireless communication network.
(5) One aspect of the present invention is the terminal device according to the above (3) or (4), wherein the information receiving unit is the terminal device identification information for identifying the device itself in the second wireless communication network. The terminal acquires at least one of execution of establishment of the communication session, execution of maintenance, execution of disconnection, and a maintenance notification interval for maintaining the established communication session. The terminal device is determined based on the setting state of the device identification information.
(6) One aspect of the present invention is the terminal device according to any one of (3) to (5), wherein the information receiving unit identifies the terminal device via the second wireless communication network. The management device that manages the identification information acquires a setting state of the terminal device identification information of the own device, and executes the establishment, maintenance, disconnection, and establishment of the established communication session. It is a terminal device that determines at least one of the maintenance notification intervals for the management device based on a setting state of the terminal device identification information in the management device.
(7) One aspect of the present invention is the terminal device according to any one of (3) to (6), wherein the information receiving unit is connected to the first wireless communication network, and When both of the connection with the wireless communication network can be simultaneously maintained, at least one of execution of establishment of the communication session, execution of maintenance, and execution of disconnection is performed by the first wireless A terminal device that makes a determination based on at least one of a communication quality of a communication network and a communication quality of the second wireless communication network.
(8) According to one aspect of the present invention, in the terminal device according to any one of (1) to (7), the information reception unit includes an application that uses information received from the information distribution device. In some cases, a terminal device executes establishment of the communication session.
(9) One aspect of the present invention is the terminal device according to any one of (1) to (8), wherein the information receiving unit records a disconnection time of the communication session and the communication session is disconnected. A terminal device that performs re-establishment of the communication session when a predetermined period has elapsed.
(10) In one aspect of the present invention, in the terminal device according to any one of (1) to (9), the information reception unit records the establishment time of the communication session, and the communication session is disconnected In a state, the communication device is a terminal device that executes re-establishment of the communication session when a predetermined period has elapsed from the establishment time of the communication session.
(11) According to one aspect of the present invention, in the terminal device according to any one of (1) to (10), the information reception unit performs execution of establishment of the communication session, execution of maintenance, and execution of disconnection. , At least one of maintenance notification intervals for maintaining the established communication session, the date and time, the position of the own device, the moving state of the own device, the power state of the own device, and the display unit The terminal device is determined based on at least one of the display states.
(12) In one aspect of the present invention, in the terminal device according to any one of (1) to (11), the information receiving unit records a user reference history of information received from the information distribution device, and the communication A terminal that determines at least one of execution of establishment of a session, execution of maintenance, execution of disconnection, and an interval of maintenance notification for maintaining the established communication session based on the user reference history; Device.
(13) One aspect of the present invention is the terminal device according to any one of (1) to (12), wherein the information reception unit performs establishment of the communication session, execution of maintenance, and execution of disconnection. A terminal device that determines at least one of maintenance notification intervals for maintaining the established communication session based on duplication of information received from the information distribution device.

(14) According to one aspect of the present invention, a first wireless communication network access unit that establishes a connection with a specific first wireless communication network and transmits / receives a wireless signal to / from the first wireless communication network. A communication session establishment method in a terminal device comprising: an acquisition step of acquiring a list of access point devices of the first wireless communication network; and the terminal device includes the first wireless communication network access unit and the first wireless communication network access unit. When a connection is established with an access point device of the other wireless communication network , if the access point device is in the list , information distribution is performed via the first wireless communication network access unit. When a communication session is established with a device, and the access point device is not in the list The via said first wireless communication network access unit, information receiving step which does not establish a communication session between the information distribution apparatus, have a, in the information receiving step, connected to a particular said access point device This is a communication session establishment method that attempts to reestablish a communication session at a time interval shorter than usual when the communication session is disconnected during the operation.

(15) In one aspect of the present invention, a first wireless communication network access unit that establishes a connection with a specific first wireless communication network and transmits / receives a wireless signal to / from the first wireless communication network. An acquisition step of acquiring a list of access point devices of the first wireless communication network in a computer of a terminal device comprising: a first wireless communication network access unit; and an access point device of the first wireless communication network. If the access point device is present in the list , a communication session is established with the information distribution device via the first wireless communication network access unit. If the access point device does not exist in the list, the first wireless communication network access An information receiving step that does not establish a communication session with the information distribution device is executed via an access unit, and the communication session is disconnected when connected to a specific access point device in the information receiving step. If it is, at a time interval shorter than normal, it is because of the program may attempt to reestablish the communication session.

  According to the present invention, it is possible to suppress the battery consumption of a terminal connected to a specific wireless communication network.

It is a block diagram which shows the push type | mold information delivery system which concerns on one Embodiment of this invention. It is a figure which shows the structural example of the reception log | history memory | storage part 14 which concerns on one Embodiment of this invention. It is a figure which shows the hardware structural example of the terminal device 10 which concerns on one Embodiment of this invention. It is a figure which shows the structural example of the session management information storage part 23 which concerns on one Embodiment of this invention. It is a figure which shows the structural example of the cellular NWIP address management database 41 which concerns on one Embodiment of this invention. It is a figure which shows the hardware structural example of the information delivery apparatus 20 which concerns on one Embodiment of this invention. It is a sequence chart which shows the push type | mold information delivery method which concerns on one Embodiment of this invention.

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

  FIG. 1 is a block diagram showing a push type information distribution system according to an embodiment of the present invention. In FIG. 1, the information distribution device 20 transmits a push notification to the terminal device 10. The terminal device 10 receives the push notification from the information distribution device 20. As a communication path for push notification from the information distribution apparatus 20 to the terminal apparatus 10, the first communication path reaching the terminal apparatus 10 via the wireless LAN 31 and the terminal apparatus 10 via the cellular network (cellular NW) 33 are reached. And a second communication path. The first communication path is via the Internet 32 between the information distribution device 20 and the wireless LAN 31.

  The wireless LAN 31 is an example of a specific first wireless communication network. An example of the wireless LAN 31 is a wireless LAN called Wi-Fi that conforms to the IEEE 802.11 series standard. The cellular NW 33 is an example of a specific second wireless communication network. As the cellular NW 33, for example, a wireless communication system of a wireless communication method called LTE (Long Term Evolution) which is a standard of 3GPP (3rd Generation Partnership Project) is cited.

  The first push notification transmission unit 21 of the information distribution device 20 transmits a push notification through the first communication path. The push notification transmitted by the first push notification transmission unit 21 is referred to as a first push notification. The second push notification transmission unit 22 of the information distribution device 20 transmits a push notification through the second communication path. The push notification transmitted by the second push notification transmission unit 22 is referred to as a second push notification. The information distribution apparatus 20 can transmit a push notification having the same content via both the first communication path and the second communication path.

  Here, in the transmission of the push notification via the first communication path, a communication session established between the terminal device 10 and the information distribution device 20 is used. The terminal device 10 establishes a communication session when a predetermined communication session establishment condition is satisfied. In addition, the terminal device 10 executes keep-alive of the communication session at a frequency according to a predetermined communication session maintenance condition. The keep alive is a process in which the terminal device 10 transmits a maintenance notification (keep alive signal) for maintaining the established communication session to the information distribution device 20. Thereby, the terminal device 10 can appropriately determine and execute establishment, maintenance, and disconnection of a communication session.

(Terminal device)
The terminal device 10 will be described. In FIG. 1, the terminal device 10 includes a wireless LAN access unit 11, a cellular NW access unit 12, a push notification reception unit 13, a reception history storage unit 14, and an application 15.

  The wireless LAN access unit 11 establishes a connection with the wireless LAN 31 and transmits / receives a wireless signal to / from the wireless LAN 31. The wireless LAN access unit 11 establishes a connection with the access point device of the wireless LAN 31 according to a predetermined procedure of the wireless LAN 31. The wireless LAN access unit 11 transmits and receives wireless signals to and from the access point device that has established a connection.

  The cellular NW access unit 12 establishes a connection with the cellular NW 33 and transmits / receives a radio signal to / from the cellular NW 33. The cellular NW access unit 12 establishes a connection with the base station apparatus of the cellular NW 33 according to a predetermined procedure of the cellular NW 33. The cellular NW access unit 12 transmits and receives radio signals to and from the base station apparatus that has established a connection.

  The push notification reception unit 13 transmits a communication session for receiving the first push notification via the wireless LAN access unit 11 only when the connection between the wireless LAN access unit 11 and the wireless LAN 31 is established. Established with 20 first push notification transmitters 21. The push notification receiving unit 13 recognizes that the connection between the wireless LAN access unit 11 and the wireless LAN 31 is established or not established, for example, via an OS (Operating System) of the terminal device 10. The push notification reception unit 13 receives the first push notification from the first push notification transmission unit 21 through a communication session established with the first push notification transmission unit 21 of the information distribution device 20.

  The push notification receiving unit 13 controls establishment of a communication session. The push notification receiving unit 13 has a communication session establishment condition for determining execution of processing for establishing a communication session. The push notification reception unit 13 establishes a communication session with the first push notification transmission unit 21 of the information distribution device 20 via the wireless LAN access unit 11 when the communication session establishment condition is satisfied. Even if the connection between the wireless LAN access unit 11 and the wireless LAN 31 is established, the push notification reception unit 13 does not establish a communication session if the communication session establishment condition is not satisfied. Examples 1 to 6 of communication session establishment conditions are given below.

(Example 1 of communication session establishment conditions)
Example 1 of the communication session establishment condition is that the application 15 is installed or activated. The application 15 is an application that receives the first push notification and the second push notification received by the push notification receiving unit 13 from the push notification receiving unit 13 among the applications installed in the terminal device 10. Whether the application 15 is installed is notified to the push notification receiving unit 13 via the OS of the terminal device 10. The push notification receiving unit 13 determines that the communication session establishment condition is satisfied when the notification is with the application 15 installed, and determines that the communication session establishment condition is not satisfied when the notification is without the application 15 installed.

  Alternatively, whether or not the application 15 is activated is notified to the push notification receiving unit 13 via the OS of the terminal device 10. The push notification receiving unit 13 determines that the communication session establishment condition is satisfied when the notification is activated of the application 15, and determines that the communication session establishment condition is not satisfied when the notification is not activated of the application 15.

  In a state in which the application 15 is not installed or activated, there is no application 15 that receives the first push notification from the push notification receiving unit 13, and thus the communication that the push notification receiving unit 13 receives the first push notification. There is no problem even if the first push notification cannot be received by not establishing the session. Thereby, unnecessary establishment of a communication session for receiving the first push notification can be avoided, and battery life can be improved.

  Note that the information indicating whether the application installed in the terminal device 10 is the application 15 is included in the attribute information of each application, for example. Alternatively, the terminal device 10 may hold a list of applications 15 in advance.

(Example 2 of communication session establishment conditions)
Example 2 of the communication session establishment condition is that a predetermined time has elapsed since the previous communication session disconnection time. The terminal device 10 has a timekeeping function. When the communication session is disconnected, the push notification reception unit 13 records the disconnection time. The push notification receiving unit 13 periodically acquires the current time by the time counting function of the terminal device 10. The push notification receiving unit 13 determines that the communication session establishment condition is satisfied when the current time has passed a predetermined time or more from the previously recorded disconnection time, and the current time is a predetermined time from the previously recorded disconnection time. If the time has not elapsed, it is determined that the communication session establishment condition is not satisfied.

  A possible reason for disconnecting the communication session is that the communication environment from the wireless LAN access unit 11 to the first push notification transmission unit 21 is unstable. Under such circumstances, even if a communication session is reestablished, the established communication session may be immediately disconnected, and the battery is wasted due to repeated establishment and disconnection of the communication session. End up. Therefore, the establishment of the communication session is not executed for a predetermined time from the disconnection time, and waiting for the stabilization of the communication environment can avoid unnecessary establishment of the communication session and improve the battery life.

(Example 3 of communication session establishment conditions)
Example 3 of the communication session establishment condition is that a predetermined time has elapsed since the previous communication session establishment trial time. When the push notification receiving unit 13 tries to establish a communication session, the push notification receiving unit 13 records the establishment trial time. The push notification receiving unit 13 periodically acquires the current time by the time counting function of the terminal device 10. The push notification receiving unit 13 determines that the communication session establishment condition is satisfied when the current time has passed a predetermined time or more from the previously stored establishment trial time, and the current time is determined from the previously recorded establishment trial time. If the predetermined time or more has not elapsed, it is determined that the communication session establishment condition is not satisfied.

  If it is set to try to establish a communication session immediately after the connection with the wireless LAN 31 is established, if connection and disconnection with the wireless LAN 31 are frequently repeated, communication is performed at each connection. An attempt to establish a session occurs and the battery is exhausted. Therefore, if a predetermined time has elapsed since the previous attempt to establish a disconnected communication session, the communication session is established, and if a predetermined time has not elapsed since the previous attempt to establish a communication session, By waiting for the stabilization of the communication environment without executing the establishment, unnecessary establishment of the communication session can be avoided and the battery life can be improved.

In addition, when the previous communication session that has been disconnected has been maintained for a long time, it can be expected that the reestablished communication session is also stably maintained. On the other hand, if the previous communication session that was disconnected has been maintained for only a short time, it may be possible to maintain only a short time even if the communication session is established again. In this case, stabilization of the communication environment can be expected by taking some time.
That is, it is possible to determine whether or not a re-established communication session is stably maintained from the length of time that the previously disconnected communication session is maintained. Therefore, the push notification receiving unit 13 may measure and use the length of time that the communication session is maintained as the communication session establishment condition.

(Example 4 of communication session establishment conditions)
Example 4 of the communication session establishment condition is that the simultaneous communication function capable of simultaneously maintaining both the connection with the wireless LAN 31 and the connection with the cellular NW 33 is not implemented. The presence / absence of the simultaneous communication function is described in advance in the OS setting information, for example. The push notification receiving unit 13 acquires the presence / absence of the simultaneous communication function by referring to the OS setting information of the terminal device 10. The push notification receiving unit 13 determines that the communication session establishment condition is satisfied when the setting information describes the absence of the simultaneous communication function, and establishes the communication session when the setting information describes the presence of the simultaneous communication function. Judge that the condition is not satisfied.

  In the terminal device 10 that implements the simultaneous communication function, both a communication session with the information distribution device 20 and a connection with the cellular NW 33 may be maintained. In this case, there is a possibility that the first push notification having the same content and the second push notification are received at substantially the same timing, and the push notification receiving unit 13 establishes a communication session for receiving the first push notification. There is little profit. Therefore, even if the push notification receiving unit 13 does not establish the communication session and cannot receive the first push notification, the influence is relatively small. Thereby, unnecessary establishment of a communication session for receiving the first push notification can be avoided, and battery life can be improved.

Further, the communication quality of the connection with the cellular NW 33 may be monitored, and if the communication quality is not good, a communication session may be established. Thereby, even if the communication quality is poor in the connection with the cellular NW 33 and the second push notification cannot be received, the first push notification can be received. At this time, the communication quality of the connection with the wireless LAN 31 may be monitored to establish a communication session when the communication quality is good. As described above, when the simultaneous communication function is implemented, the communication session is basically not established, but depending on the communication quality with the cellular NW 33 or the communication quality with the wireless LAN 31, the communication session is not established. The establishment, maintenance, and disconnection may be controlled.
Note that the implementation of the simultaneous communication function is assumed to vary depending on the model of the terminal device 10, and thus it can be said that the example 4 of the communication session establishment condition is a condition for the model of the terminal device 10.

(Example 5 of communication session establishment condition)
Example 5 of the communication session establishment condition is that a connection with an access point device of a specific wireless LAN 31 is established. Here, the access point device of the specific wireless LAN 31 is, for example, an access point device designated by the push notification service provider, and is a highly reliable device. The push notification receiving unit 13 refers to the list of specific access point devices, determines that the communication session establishment condition is satisfied when the current connection destination access point device exists in the list, and determines the current connection destination access point. If the device does not exist in the list, it is determined that the communication session establishment condition is not satisfied. When connected to a specific access point device, the terminal device 10 can perform communication with higher reliability than when connected to another access point device, for example.

  The list of specific access point devices is managed in, for example, an external device connected to the Internet 32 and the cellular NW 33. The push notification receiving unit 13 can acquire a list of specific access point devices by inquiring to the external device. Further, when there are a plurality of access points of wireless LAN 31 within the communicable area of the terminal device 10, the terminal device 10 may preferentially connect to a specific access point device. Further, when the communication session is disconnected while connected to a specific access point device, the terminal device 10 may attempt to reestablish the communication session at a time interval shorter than usual.

(Example 6 of communication session establishment condition)
Example 6 of the communication session establishment condition is that the connection with the cellular NW 33 is not established. Whether or not the connection with the cellular NW 33 is established can be determined by the following three criteria.

  Criterion 1 is that a duplicate push notification has been received. When a plurality of push notifications having the same message ID are received, the push notifications are considered to have been received via the first communication path and the second communication path. That is, in this case, it can be determined that the connection with the cellular NW 33 is established.

  Criterion 2 is that an IP address is assigned to the cellular NW access unit 12. When an IP address is assigned to the cellular NW access unit 12, it is considered that a second push notification destined for the IP address can be received. That is, in this case, it can be determined that the connection with the cellular NW 33 is established.

  Criterion 3 is that an IP address is assigned to the own device in the cellular NWIP address management database 41. In the cellular NWIP address management database 41, when an IP address is assigned to the own device, it is considered that the information distribution device 20 can transmit the second push notification with the IP address as a destination. That is, in this case, it can be determined that the connection with the cellular NW 33 is established. In the cellular NWIP address management database 41, it is determined by inquiry to the cellular NWIP address management database 41 whether or not an IP address is assigned to the own device.

In a state where the connection with the cellular NW 33 is established, the push notification receiving unit 13 can receive the second push notification, and therefore the push notification receiving unit 13 does not establish a communication session for receiving the first push notification. Therefore, there is no problem even if the first push notification cannot be received. Thereby, unnecessary establishment of a communication session for receiving the first push notification can be avoided, and battery life can be improved.
The push notification receiving unit 13 may use any one of the above-described criteria 1 to 3 alone, or may use any combination thereof.
The above is an example of the communication session establishment condition.

  The push notification receiving unit 13 controls the maintenance of the communication session by executing keep-alive of the communication session that receives the first push notification while the connection between the wireless LAN access unit 11 and the wireless LAN 31 is continued. . The push notification reception unit 13 has a communication session maintenance condition for determining execution and frequency of keepalive. When a communication session is established, the push notification reception unit 13 performs keep alive at a frequency according to the communication session maintenance condition. Here, the frequency is the number of times per unit time. This number of times may be zero or one or more times. In the case of 0 times, keep alive is not executed and the communication session is disconnected. Further, the frequency may be expressed in an arbitrary manner such as an execution time interval. Examples 1 to 7 of communication session maintenance conditions are given below.

(Example 1 of communication session maintenance conditions)
Example 1 of the communication session maintenance condition is a condition regarding date and time. In this example, for example, the keep-alive frequency corresponding to a time zone such as daytime or nighttime is predetermined. In this case, the push notification receiving unit 13 periodically acquires the current date and time by the timekeeping function of the terminal device 10 and specifies the time zone corresponding to the current date and time. The push notification receiving unit 13 performs keep alive at a frequency corresponding to the specified time zone.

  In the nighttime period, the user of the terminal device 10 is not likely to confirm the push notification for reasons such as sleeping, so the communication session is not maintained for a long time and the first push notification cannot be received. There is no problem. On the other hand, since the user of the terminal device 10 is considered to have many opportunities to use the terminal device 10 during the daytime, it is desirable to keep the communication session. In this way, the necessity of maintaining a communication session can change depending on the date and time. Therefore, by setting the communication session maintenance condition as the date and time condition as described above, it is possible to avoid unnecessary establishment of the communication session for receiving the first push notification and to improve the battery life.

  The state where it is desirable to maintain the communication session is also the state where it is desirable to establish the communication session. Therefore, the push notification receiving unit 13 may apply the condition regarding the date and time to the session establishment condition. Thereby, the terminal device 10 can control establishment, maintenance, and disconnection of a communication session based on the date and time.

(Example 2 of communication session maintenance conditions)
Example 2 of the communication session maintenance condition is a condition regarding the position of the terminal device 10. In this example, the keep-alive frequency according to the position range of a commercial facility, home, or the like is predetermined. The terminal device 10 has a position acquisition function such as GPS (Global Positioning System). The push notification receiving unit 13 acquires a position by the position acquisition function of the terminal device 10 and specifies a position range corresponding to the position of the terminal device 10. The push notification receiving unit 13 executes keepalive at a frequency corresponding to the specified position range.

  For example, when the content of the push notification is a store advertisement, the advertisement appeal is higher when the user of the terminal device 10 is near the store. Therefore, when the terminal device 10 is located in a specific position range, it is desirable to maintain the communication session. As described above, the necessity of maintaining the communication session can vary depending on the position of the terminal device 10. Therefore, by setting the communication session maintenance condition as the condition regarding the position of the terminal device 10 as described above, it is possible to avoid unnecessary establishment of the communication session for receiving the first push notification and improve battery life.

The location management server device may acquire the location of the terminal device 10 from the location of the base station device of the cellular NW 33 to which the terminal device 10 is connected. In this case, the terminal apparatus 10 may acquire the position of the own apparatus from the position management server.
The state where it is desirable to maintain the communication session is also the state where it is desirable to establish the communication session. Therefore, the push notification reception unit 13 may apply the condition regarding the position of the terminal device 10 to the session establishment condition. Thereby, the terminal device 10 can control establishment, maintenance, and disconnection of a communication session based on the position.

(Example 3 of communication session maintenance conditions)
Example 3 of the communication session maintenance condition is a condition regarding the movement state of the own apparatus. In this example, for example, the frequency of keep alive is determined in advance according to the movement state such as when the vehicle is stopped or while traveling. The terminal device 10 has a movement state specifying function such as an acceleration sensor and GPS. In this case, the push notification receiving unit 13 specifies the movement state of the terminal device 10 by the movement state specifying function. The push notification receiving unit 13 performs keep alive at a frequency corresponding to the identified movement state.

During traveling, the user of the terminal device 10 cannot operate the terminal device 10 and cannot confirm the push notification. Therefore, the user does not maintain the communication session for a long time and cannot receive the first push notification. There is no problem. On the other hand, since the user of the terminal device 10 is highly likely to be able to confirm the push notification when the user is stopped, it is desirable to maintain the communication session. As described above, the necessity of maintaining the communication session can vary depending on the movement state of the terminal device 10. Therefore, by setting the communication session maintenance condition as the condition for the movement state of the terminal device 10 as described above, it is possible to avoid unnecessary establishment of the communication session for receiving the first push notification and improve battery life. .
The movement state of the terminal device 10 may be acquired by the location management server device from a change in the base station device of the cellular NW 33 to which the terminal device 10 is connected. In this case, the terminal device 10 may acquire the movement state of the own device from the position management server.

  The state where it is desirable to maintain the communication session is also the state where it is desirable to establish the communication session. Therefore, the push notification reception unit 13 may apply the condition regarding the movement state of the terminal device 10 to the session establishment condition. Thereby, the terminal device 10 can control establishment, maintenance, and disconnection of a communication session based on the movement state.

(Example 4 of communication session maintenance conditions)
Example 4 of the communication session maintenance condition is a condition regarding the power state of the own apparatus. In this example, for example, the frequency of keep-alive is determined in advance according to the power state such as the remaining battery level during charging. The power state of the terminal device 10 is acquired via the OS. The push notification receiving unit 13 performs keep alive at a frequency corresponding to the acquired power state.

  It is better not to be able to receive the first push notification than to be able to use all the functions of the terminal device 10 when the battery is exhausted, so if the battery is low, the communication session is not maintained for a long time. There is no problem even if the first push notification cannot be received. On the other hand, when charging or when the battery level is high, there are few disadvantages of maintaining the communication session. As described above, the necessity of maintaining the communication session may vary depending on the power state. Therefore, by setting the communication session maintenance condition as the condition regarding the power state of the terminal device 10 as described above, it is possible to avoid unnecessary establishment of the communication session for receiving the first push notification and to improve the battery life. .

  The state where it is desirable to maintain the communication session is also the state where it is desirable to establish the communication session. Therefore, the push notification receiving unit 13 may apply the condition regarding the power state of the terminal device 10 to the session establishment condition. Thereby, the terminal device 10 can control establishment, maintenance, and disconnection of a communication session based on the power state.

(Example 5 of communication session maintenance conditions)
Example 5 of the communication session maintenance condition is a condition regarding the reference history of the push notification received by the push notification reception unit 13. In this example, for example, the keep-alive frequency corresponding to the reference frequency of the push notification is determined in advance. When the terminal device 10 receives an operation for confirming the content of the first push notification or the second push notification from the user, the terminal device 10 records a reference history including the date and time when the operation is received. The push notification receiving unit 13 periodically acquires the current date and time and the position by the timekeeping function and the position acquisition function of the terminal device 10, and specifies the corresponding time zone and position range. The push notification receiving unit 13 reads the reference history, and acquires the frequency with which the push notification was referred to in the past in the specified time zone and position range. The push notification receiving unit 13 executes keepalive at a frequency according to the acquired reference frequency.

  In a time zone or place where the push notification has not been frequently referred to by the user in the past, the possibility of the user confirming the push notification is relatively low, so the first push notification is not maintained without maintaining the communication session for a long time. There is no problem even if it cannot be received. On the other hand, in a time zone and a position range in which push notifications are frequently referred to by the user in the past, it is relatively likely that the user confirms the push notification, so it is desirable to maintain the communication session. . In this way, it is possible to determine the necessity of maintaining the communication session from the push notification reference history. Therefore, by setting the communication session maintenance condition as the condition for the reference history of the push notification as described above, it is possible to avoid unnecessary establishment of the communication session that receives the first push notification and to improve the battery life.

  The state where it is desirable to maintain the communication session is also the state where it is desirable to establish the communication session. Therefore, the push notification reception unit 13 may apply the condition regarding the movement state of the terminal device 10 to the session establishment condition. Thereby, the terminal device 10 can control establishment, maintenance, and disconnection of a communication session based on the reference history of the push notification.

(Example 6 of communication session maintenance conditions)
Example 6 of the communication session maintenance condition is a condition for the display state of the display unit 57. In this example, for example, the keep-alive frequency is determined in advance according to the display state such as the time after the display unit 57 is turned on or off. ON / OFF of the display unit 57 is notified via the OS. The push notification receiving unit 13 specifies the display state of the display unit 57 from the notified ON / OFF of the display unit 57. The push notification reception unit 13 performs keep alive at a frequency corresponding to the specified display state.

  In a case where it has been a while since the display unit 57 is turned off, there is a high possibility that the terminal device 10 will not be immediately confirmed by the user even if the terminal device 10 receives the push notification, so the communication session is not maintained for a long time. There is no problem even if the first push notification cannot be received. On the other hand, when the display unit 57 is ON, or when the time has not passed since the display unit 57 is OFF, when the terminal device 10 receives the push notification, the user may immediately confirm the push notification. It is desirable to continue to maintain the communication session. As described above, the necessity of maintaining the communication session can vary depending on the display state of the display unit 57. Therefore, by setting the communication session maintenance condition as the condition for the display state of the display unit 57 as described above, it is possible to avoid unnecessary establishment of the communication session for receiving the first push notification and to improve the battery life. .

In the terminal device 10, a function of disconnecting the connection between the wireless LAN access unit 11 and the wireless LAN 31 when a predetermined automatic disconnection time has elapsed after the display unit 57 is turned off may be implemented. Conceivable. In this case, the push notification receiving unit 13 may turn on the display unit 57 and perform keep alive before the automatic disconnection time elapses. Thereby, the push notification receiving unit 13 can prevent the connection between the wireless LAN access unit 11 and the wireless LAN 31 from being disconnected, and can maintain the communication session.
In addition, since it is assumed that the implementation of the automatic disconnection function after the display unit 57 is turned off differs depending on the model of the terminal device 10, Example 6 of the communication session maintenance condition is for the model of the terminal device 10. It can be said that this is a condition.
The state where it is desirable to maintain the communication session is also the state where it is desirable to establish the communication session. Therefore, the push notification receiving unit 13 may apply the condition regarding the display state of the display unit 57 and the model of the terminal device 10 to the session establishment condition. Thereby, the terminal device 10 can control establishment, maintenance, and disconnection of a communication session based on the display state of the display unit 57 and the model of the terminal device 10.

(Example 7 of communication session maintenance conditions)
Example 7 of the communication session maintenance condition is a condition for the access point device of the wireless LAN 31. For example, in the access point device of the wireless LAN 31, it is conceivable that a function for disconnecting the connection between the own device and the terminal device 10 when there is no communication with the access point device after a predetermined automatic disconnection time is implemented. . In this case, the push notification receiving unit 13 prevents the connection between the wireless LAN access unit 11 and the wireless LAN 31 from being disconnected by executing keep alive before the automatic disconnection time elapses, Can be maintained. The automatic disconnection time is different for each access point device and SSID (Service Set Identifier), for example. The list of automatic disconnection times for each access point device and SSID is managed in, for example, an external device connected to the Internet 32 and the cellular NW 33. The push notification receiving unit 13 can acquire the automatic disconnection time of the access point device and SSID to which the wireless LAN access unit 11 is connected by inquiring to the external device.

Further, the push notification receiving unit 13 may store a history of the establishment time and the disconnection time of the communication session for each access point device and SSID. Then, when the communication session is re-established, the push notification receiving unit 13 refers to the history and executes keep alive at a time interval shorter than the period in which the communication session has been maintained in the past. Thereby, for example, even when the automatic disconnection time of the access point device is not known, the terminal device 10 prevents the communication session from being disconnected due to the elapse of the automatic disconnection time in the establishment of the second and subsequent communication sessions. I can do it.
The state where it is desirable to maintain the communication session is also the state where it is desirable to establish the communication session. Therefore, the push notification receiving unit 13 may apply the condition for the access point device of the wireless LAN 31 to the session establishment condition. Thereby, the terminal device 10 can control establishment, maintenance, and disconnection of a communication session based on the access point device to which the own device is connected.
The above is an example of the communication session maintenance condition.

  The push notification receiving unit 13 may use any one of the communication session establishment conditions 1 to 6 described above alone, or may use any combination thereof. In addition, the push notification receiving unit 13 may use any one of the above-described communication session maintenance condition examples 1 to 7 alone, or may use any combination thereof.

  The push notification reception unit 13 receives the second push notification transmitted from the second push notification transmission unit 22 of the information distribution device 20 via the cellular NW access unit 12.

  The second push notification is sent from the second push notification transmission unit 22 of the information distribution device 20 using the destination address based on the subscriber identification information of the terminal device 10 in the cellular NW 33 (hereinafter referred to as a cellular NW subscriber ID). Sent. As a destination address based on the cellular NW subscriber ID of the terminal device 10, an IP (Internet Protocol) address assigned to the terminal device 10 from the cellular NW 33 is used. The cellular NW 33 has an IP packet transfer function, and performs IP packet transfer based on the destination IP address. The second push notification IP packet whose destination address is the IP address assigned to the terminal device 10 from the cellular NW 33 is transferred from the information distribution device 20 to the terminal device 10 by the cellular NW 33.

  As the cellular NW subscriber ID, for example, a telephone number of the cellular NW 33 (hereinafter simply referred to as a telephone number), user identification information of the cellular NW 33, unique information of a SIM (Subscriber Identity Module) card attached to the terminal device 10 Etc. are available.

  The reception history storage unit 14 stores a history of message identification information (message ID) included in the first push notification received by the push notification reception unit 13 and a message ID included in the second push notification. FIG. 2 is a diagram illustrating a configuration example of the reception history storage unit 14 according to an embodiment of the present invention. In the example of FIG. 2, the reception history storage unit 14 includes information indicating a reception time, a message ID, and a reception network (reception NW) for each of the first push notification and the second push notification received by the push notification reception unit 13. Is stored in association with information indicating. In FIG. 2, the reception NW of the first push notification is a wireless LAN, and the reception NW of the second push notification is a cellular NW. The contents described in each item in FIG. 2 are for convenience of explanation.

  The application 15 receives the first push notification and the second push notification received by the push notification reception unit 13 via, for example, the OS of the terminal device 10.

  When the application 15 receives the first push notification or the second push notification having the same message ID as the message ID included in the history stored in the reception history storage unit 14, the duplicated first push notification or second Push notifications may be discarded. Note that the push notification receiving unit 13 may discard the duplicate first push notification or second push notification.

  FIG. 3 is a diagram illustrating a hardware configuration example of the terminal device 10 according to the embodiment of the present invention. 3, the terminal device 10 includes a CPU_51 (arithmetic processing unit), a program storage unit 52, a data storage unit 53, a wireless LAN communication module 54, a cellular NW communication module 55, an operation unit 56, and a display unit. 57. Each of these units is configured to exchange data.

  The CPU_51 controls the terminal device 10. This control function is realized by the CPU_51 executing a computer program. The program storage unit 52 stores a computer program executed by the CPU_51. The program storage unit 52 stores a push notification reception program 61 and an application program 62. The function of the push notification reception unit 13 of the terminal device 10 illustrated in FIG. 1 is realized by the CPU_51 illustrated in FIG. 3 executing the push notification reception program 61 stored in the program storage unit 52. The function of the application 15 of the terminal device 10 illustrated in FIG. 1 is realized by the CPU_51 illustrated in FIG. 3 executing the application program 62 stored in the program storage unit 52.

  The data storage unit 53 stores data. The reception history storage unit 14 of the terminal device 10 shown in FIG. 1 is provided in the data storage unit 53 shown in FIG. Information such as the frequency of keep alive according to various communication session establishment conditions and communication session maintenance conditions is stored in the data storage unit 53.

  The wireless LAN communication module 54 is a communication module that realizes the function of the wireless LAN access unit 11 of the terminal device 10 shown in FIG. The cellular NW communication module 55 is a communication module that implements the function of the cellular NW access unit 12 of the terminal device 10 shown in FIG. A SIM card (not shown) is connected to the cellular NW communication module 55.

  The operation unit 56 includes input devices such as a keyboard, a numeric keypad, and a mouse, and performs data input according to a user operation. The display unit 57 is composed of a display device such as a liquid crystal display device and displays data. Further, a touch panel capable of both data input and data display may be provided.

  A general-purpose computer device may be used as the terminal device 10 or may be configured as a dedicated hardware device. Further, as the terminal device 10, a mobile communication terminal device such as a smartphone, a tablet computer device, a stationary personal computer device, or the like may be used.

(Information distribution device)
The information distribution device 20 will be described. In FIG. 1, the information distribution device 20 includes a first push notification transmission unit 21, a second push notification transmission unit 22, a session management information storage unit 23, and a push notification control unit 24.

  The first push notification transmission unit 21 establishes a communication session with the push notification reception unit 13 of the terminal device 10 and transmits the first push notification in the communication session established with the push notification reception unit 13. . The first push notification transmission unit 21 maintains the communication session according to the keep-alive of the communication session established with the push notification reception unit 13.

  The session management information storage unit 23 stores session management information that associates the communication session established and maintained by the first push notification transmission unit 21 with the terminal device 10 that is the session establishment partner. FIG. 4 is a diagram illustrating a configuration example of the session management information storage unit 23 according to an embodiment of the present invention. In the example of FIG. 4, the session management information storage unit 23 includes, for each communication session established and maintained by the first push notification transmission unit 21, the communication session identification information (session ID) and the session establishment partner terminal device 10. The telephone number is stored in association with the telephone number. Note that the contents described in each item in FIG. 4 are for convenience of explanation.

  The push notification control unit 24 designates the communication session associated with the push notification destination terminal device 10 to the first push notification transmission unit 21 by the session management information storage unit 23. The first push notification transmission unit 21 transmits the first push notification through the communication session specified by the push notification control unit 24.

  The second push notification transmission unit 22 transmits the second push notification via the cellular NW 33 using the destination address based on the cellular NW subscriber ID. The push notification control unit 24 specifies the cellular NW subscriber ID of the push notification destination terminal device 10 to the second push notification transmission unit 22. The second push notification transmission unit 22 transmits the second push notification using a destination address based on the cellular NW subscriber ID designated by the push notification control unit 24.

  The second push notification transmission unit 22 accesses the cellular NWIP address management database 41 via a communication line, and assigns a destination address based on the cellular NW subscriber ID designated by the push notification control unit 24 to the cellular NWIP address management database 41. Get from. FIG. 5 is a diagram showing a configuration example of the cellular NWIP address management database 41 according to an embodiment of the present invention. In the example of FIG. 5, the cellular NWIP address management database 41 stores the telephone number of the terminal device 10 and the IP address in association with each other. In the cellular NWIP address management database 41, the IP address associated with the telephone number of the terminal device 10 is an IP address assigned to the terminal device 10 from the cellular NW 33. Note that the contents described in each item in FIG. 5 are for convenience of explanation.

  The push notification control unit 24 designates the telephone number of the terminal device 10 to the second push notification transmission unit 22 as the cellular NW subscriber ID of the terminal device 10 that is the push notification destination. The second push notification transmission unit 22 acquires the IP address associated with the telephone number designated by the push notification control unit 24 from the cellular NWIP address management database 41. The second push notification transmission unit 22 transmits to the cellular NW 33 the second push notification IP packet whose destination address is the IP address acquired from the cellular NWIP address management database 41. The IP packet of the second push notification transmitted from the second push notification transmission unit 22 to the cellular NW 33 is transferred by the cellular NW 33 to the terminal device 10 to which the IP address as the destination address is allocated from the cellular NW 33.

  FIG. 6 is a diagram illustrating a hardware configuration example of the information distribution apparatus 20 according to an embodiment of the present invention. In FIG. 6, the information distribution apparatus 20 includes a CPU_71, a program storage unit 72, a data storage unit 73, and a communication unit 74. Each of these units is configured to exchange data.

  The CPU_71 controls the information distribution apparatus 20. This control function is realized by the CPU_71 executing a computer program. The program storage unit 72 stores a computer program executed by the CPU_71. The program storage unit 72 stores a push notification transmission program 81. The functions of the first push notification transmission unit 21, the second push notification transmission unit 22, and the push notification control unit 24 of the information distribution device 20 illustrated in FIG. 1 are performed by the CPU_71 illustrated in FIG. This is realized by executing the stored push notification transmission program 81.

  The data storage unit 73 stores data. The session management information storage unit 23 of the information distribution apparatus 20 shown in FIG. 1 is provided in the data storage unit 73 shown in FIG. The communication unit 74 communicates with other devices.

  A general-purpose computer device may be used as the information distribution device 20, or a dedicated hardware device may be configured.

(Push notification management server)
The push notification management server 42 manages push notifications. The push notification management server 42 is connected to the information distribution device 20 via a communication line. The push notification management server 42 is accessed from the terminal device 10 via the Internet 32 or the cellular NW 33.

  Next, the operation of the push type information distribution system according to the present embodiment will be described with reference to FIG. FIG. 7 is a sequence chart showing a push type information distribution method according to an embodiment of the present invention.

(Step S <b> 1) The terminal device 10 performs provisioning for the push notification management server 42. Various information of the terminal device 10 is registered in the push notification management server 42 by provisioning.

(Step S <b> 2) The terminal device 10 issues a permission notification to the push notification management server 42. The permission notification notifies the push notification management server 42 of permission or no permission. As a result of the permission notification, permission or no permission is registered in the push notification management server 42 as the permission state of the user ID of the terminal device 10.

(Step S <b> 3) The wireless LAN access unit 11 of the terminal device 10 establishes a connection with the wireless LAN 31.

(Step S4) When the push notification reception unit 13 of the terminal device 10 recognizes that the connection between the wireless LAN access unit 11 and the wireless LAN 31 has been established, the push notification reception unit 13 determines whether or not a predetermined session establishment condition is satisfied. To do. The push notification reception unit 13 establishes a communication session with the first push notification transmission unit 21 of the information distribution device 20 when a predetermined session establishment condition is satisfied. When the first push notification transmission unit 21 of the information distribution device 20 establishes a communication session with the terminal device 10, the first push notification transmission unit 21 notifies the session management information storage unit 23 of the established communication session as illustrated in FIG. The session ID is stored in association with the telephone number of the terminal device 10 with which the session is established.

(Step S <b> 5) The push notification management server 42 executes a push notification request to the information distribution device 20. In the push notification request, as the push notification request information, the telephone number of the terminal device 10 that is the push notification destination, the message to be notified by the push notification, the message ID, the push notification method designation information that designates the push notification method, and the distribution destination application 15 An application ID or the like is transmitted from the push notification management server 42 to the information distribution device 20. The push notification method designation information indicates either the first push notification only, the second push notification only, or both the first push notification and the second push notification as the push notification method.

  Note that the push notification management server 42 sets only the service subscriber ID and telephone number whose permission status is permitted in the push notification management information as a target of execution of the push notification request. Further, in the push notification management information, when the permission state is further managed for each application ID, only the approved application ID is set as a target of execution of the push notification request. When the push notification destination is designated by the service subscriber ID from the push notification requester, the push notification management server 42 pushes the telephone number associated with the service subscriber ID designated by the push notification requester. Acquired from the management information and include the acquired telephone number in the push notification request information.

(Step S <b> 6) The push notification control unit 24 of the information distribution device 20 executes push notification control based on the push notification request information received from the push notification management server 42. By the push notification control by the push notification control unit 24, the first push notification or the second push notification is transmitted from the information distribution device 20.

(Step S <b> 7) When the application 15 of the terminal device 10 receives the first push notification or the second push notification from the push notification receiving unit 13, the application 15 performs an opening notification to the push notification management server 42. In the opening notification, as the opening information, the message ID included in the first push notification or the second push notification received from the push notification receiving unit 13, the push notification display setting information in the application 15, and the like are transmitted from the terminal device 10 to the push notification management server. 42. The unsealing notification may be executed via either the wireless LAN 31 or the cellular NW 33. The push notification management server 42 creates push notification distribution result data based on the opening notification.

  Note that the application 15 may execute the opening notification to the push notification management server 42 on the condition that the notification of the first push notification or the second push notification received from the push notification receiving unit 13 is executed to the user. Good. Examples of the notification method to the user include screen display, audio output, and print output.

(Step S <b> 8) The push notification receiving unit 13 of the terminal device 10 performs keep alive of the communication session established with the first push notification transmitting unit 21 of the information distribution device 20. Keep alive is executed at a frequency according to the communication session maintenance conditions. The first push notification transmission unit 21 of the information distribution device 20 maintains the communication session according to the keep-alive of the communication session established with the push notification reception unit 13. In the keep alive of the communication session, a keep alive signal is transmitted from the push notification receiving unit 13 in the communication session. When receiving the keep-alive signal in the communication session, the first push notification transmission unit 21 maintains the communication session.

(Step S9) The connection between the wireless LAN access unit 11 and the wireless LAN 31 of the terminal device 10 is disconnected.

(Step S10) When the push notification reception unit 13 of the terminal device 10 recognizes that the connection between the wireless LAN access unit 11 and the wireless LAN 31 has been disconnected, the push notification transmission unit 21 of the information distribution device 20 The communication session established between the two is terminated. As a result, keep alive of the communication session is not executed.

(Step S11) The first push notification transmission unit 21 of the information distribution device 20 ends the communication session when the keep-alive of the communication session established with the push notification reception unit 13 is not continuously executed for a certain period of time. To do. When the first push notification transmission unit 21 terminates the communication session established with the terminal device 10, the session management information storage unit 23 stores the session ID of the terminated communication session and the telephone number of the terminal device 10 with which the session is established. And delete.

  According to the present embodiment, when a predetermined session establishment condition is satisfied, it is used for the first push notification between the push notification reception unit 13 of the terminal device 10 and the first push notification transmission unit 21 of the information distribution device 20. A communication session is established. Thereby, since a communication session is not established when it is unnecessary, the consumption of the battery of the terminal device 10 can be suppressed. In addition, since the communication session is established when necessary, the terminal device 10 can appropriately receive the first push notification.

  Further, since the terminal device 10 controls the maintenance and disconnection of the communication session based on a predetermined session maintenance condition, it is possible to suppress battery consumption due to the maintenance of the session.

  In addition, since it has a function of receiving a second push notification via the cellular NW 33, it is possible to reduce the situation where a communication session has to be established and maintained, and to suppress battery consumption by establishing and maintaining the session. Can do.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the specific structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

  For example, in the above-described embodiment, the wireless LAN is given as an example of the specific first wireless communication network, but the present invention can be similarly applied to other wireless communication networks. In the above-described embodiment, the cellular network is described as an example of the specific second wireless communication network. However, the second embodiment can be similarly applied to other wireless communication networks.

  Further, for example, the keep-alive frequency according to the communication session establishment condition and the communication session maintenance condition may be designated from an external device such as the information distribution device 20.

Further, a computer program for realizing the functions of the terminal device 10 and the information distribution device 20 described above is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed. You may do it. Here, the “computer system” may include an OS and hardware such as peripheral devices.
“Computer-readable recording medium” refers to a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a DVD (Digital Versatile Disk), and a built-in computer system. A storage device such as a hard disk.

Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time.
The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

DESCRIPTION OF SYMBOLS 10 ... Terminal device, 11 ... Wireless LAN access part, 12 ... Cellular NW access part, 13 ... Push notification receiving part, 14 ... Reception history memory | storage part, 15 ... Application, 20 ... Information delivery apparatus, 21 ... 1st push notification transmission , 22 ... second push notification transmission unit, 23 ... session management information storage unit, 24 ... push notification control unit, 31 ... wireless LAN, 32 ... Internet, 33 ... cellular network, 41 ... cellular NWIP address management database, 42 ... Push notification management server 51, 71 ... CPU, 52, 72 ... program storage unit, 53, 73 ... data storage unit, 54 ... wireless LAN communication module, 55 ... cellular NW communication module, 56 ... operation unit, 57 ... display unit 61 ... Push notification reception program, 62 ... Application program, 74 ... Shin portion, 81 ... Push notification transmission program

Claims (15)

A first wireless communication network access unit that establishes a connection with a specific first wireless communication network and transmits and receives wireless signals to and from the first wireless communication network;
An acquisition unit for acquiring a list of access point devices of the first wireless communication network;
When the connection between the first wireless communication network access unit and the access point device of the first wireless communication network is established, and the access point device exists in the list, the first A communication session is established with the information distribution device via one wireless communication network access unit, and the access point device is not present in the list, the first wireless communication network access unit An information receiving unit that does not establish a communication session with the information distribution device;
Equipped with a,
When the communication session is disconnected while connected to the specific access point device, the information reception unit tries to re-establish the communication session at a time interval shorter than usual . The information receiving unit
A maintenance notification for maintaining the established communication session is transmitted to the information distribution apparatus at a frequency according to a predetermined communication session maintenance condition.
The terminal device according to claim 1. A second wireless communication network access unit that establishes a connection with a specific second wireless communication network and transmits and receives wireless signals to and from the second wireless communication network;
The information receiving unit
Receiving information distributed from the information distribution device via the second wireless communication network via the second wireless communication network access unit;
The terminal device according to claim 1 or 2. The information receiving unit
At least one of execution of establishment of the communication session, execution of maintenance, execution of disconnection, and an interval of maintenance notification for maintaining the established communication session, and the second wireless communication network Based on the connection establishment status between
The terminal device according to claim 3. The information receiving unit
Obtaining a setting state in the own device of terminal device identification information for identifying the own device in the second wireless communication network;
At least one of execution of establishment of the communication session, execution of maintenance, execution of disconnection, and an interval of maintenance notification for maintaining the established communication session is set in the setting state of the terminal device identification information Based on
The terminal device according to claim 3 or 4. The information receiving unit
Via the second wireless communication network, obtain a setting state of the terminal device identification information of its own device in a management device that manages terminal device identification information for identifying the terminal device;
The terminal device identification in the management device is at least one of execution of establishment of the communication session, execution of maintenance, execution of disconnection, and an interval of maintenance notification for maintaining the established communication session Judgment based on information setting status,
The terminal device as described in any one of Claims 3-5. The information receiving unit
Execution of establishment and maintenance of the communication session when both the connection with the first wireless communication network and the connection with the second wireless communication network can be simultaneously maintained. Determining at least one of disconnection execution based on at least one of communication quality of the first wireless communication network and communication quality of the second wireless communication network,
The terminal device as described in any one of Claims 3-6. The information receiving unit
When the application using the information received from the information distribution device is provided in the own terminal device, the establishment of the communication session is executed.
The terminal device as described in any one of Claims 1-7. The information receiving unit
Record the disconnection time of the communication session;
Performing re-establishment of the communication session when a predetermined period has elapsed since the communication session was disconnected;
The terminal device as described in any one of Claims 1-8. The information receiving unit
Recording the establishment time of the communication session;
Executing a re-establishment of the communication session when a predetermined period has elapsed from the establishment time of the communication session in a state where the communication session is disconnected;
The terminal device as described in any one of Claims 1-9. The information receiving unit
At least one of execution of establishment of the communication session, execution of maintenance, execution of disconnection, and an interval of maintenance notification for maintaining the established communication session, date and time, position of the own device, The determination is based on at least one of the movement state of the own device, the power state of the own device, the display state of the display unit, and the model of the own device.
The terminal device as described in any one of Claims 1-10. The information receiving unit
Record the user reference history of information received from the information distribution device,
Based on the user reference history, at least one of execution of establishment of the communication session, execution of maintenance, execution of disconnection, and an interval of maintenance notification for maintaining the established communication session is determined. ,
The terminal device as described in any one of Claims 1-11. The information receiving unit
Information received from the information distribution device at least one of execution of establishment of the communication session, execution of maintenance, execution of disconnection, and a maintenance notification interval for maintaining the established communication session Judgment based on duplication of
The terminal device as described in any one of Claims 1-12. A communication session establishment method in a terminal device including a first wireless communication network access unit that establishes a connection with a specific first wireless communication network and transmits / receives a wireless signal to / from the first wireless communication network. There,
Obtaining a list of access point devices of the first wireless communication network; and
When the terminal device establishes a connection between the first wireless communication network access unit and the access point device of the first wireless communication network, the access point device is present in the list Includes establishing a communication session with the information distribution device via the first wireless communication network access unit, and if the access point device does not exist in the list, the first wireless communication network An information receiving step that does not establish a communication session with the information distribution device via the access unit;
I have a,
In the information reception step, when a communication session is disconnected while connected to the specific access point device, a communication session establishment method that tries to reestablish the communication session at a time interval shorter than usual . A computer of a terminal device including a first wireless communication network access unit that establishes a connection with a specific first wireless communication network and transmits and receives wireless signals to and from the first wireless communication network.
Obtaining a list of access point devices of the first wireless communication network; and
When the connection between the first wireless communication network access unit and the access point device of the first wireless communication network is established, and the access point device exists in the list, the first A communication session is established with the information distribution device via one wireless communication network access unit, and the access point device is not present in the list, the first wireless communication network access unit An information receiving step that does not establish a communication session with the information distribution device;
Was executed,
Wherein in the information receiving step, if the communication session is disconnected when connected to a particular said access point device, at a time interval shorter than normal, because the program is attempting to reestablish a communication session.

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