JP2005117169A - Wireless packet control system, push gateway server, wireless terminal, and computer program thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a customer to start a data communication with a mobile terminal unconnected to a mobile network without the need for the customer to care about its telephone number. <P>SOLUTION: The wireless packet control system receives a packet addressed to a wireless terminal 1 to temporarily store the packet and requests a switching network 2 to transmit a short message including a wireless terminal start request to the wireless terminal 1 when the connection of the wireless terminal 1 and the switching network 2 to a base station and the connection of the wireless terminal 1 and a packet network 3 to the PDSN 30 are both unestablished, and the wireless packet control system transmits the packet having stored before to the packet network 3 when both the connections are established. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a radio packet control system, a push gateway server, a radio terminal device, and a computer program thereof suitable for use in a mobile communication network composed of a packet network and a switching network.

When a short message is transmitted to a mobile device such as a mobile phone, a packet data communication service is known that receives the short message and connects to a PacketOne network (KDDIau packet data communication service). The “short message” here is a message of about several tens of characters in full-width.
By the way, the packet data communication service described above transmits a short message addressed to a telephone number, and the mobile device that is the receiver connects to the PacketOne network when the short message arrives, and the carrier or content provider Data communication is started between the server and the mobile device side PC.
Patent Document 1 discloses a technique in which a request for starting an application of another terminal and a notification of a response are implemented by a short message service from the terminal.
JP 2003-115938 A

When the above-mentioned packet data communication service is incorporated into an in-house system on the network side, for example, a corporate customer, in addition to the already established wired data communication system, data for transmitting a short message to the telephone number of the mobile terminal It is necessary to build in software for realizing the communication function.
Therefore, on the customer side, in addition to a normal IP address, development of a wireless data communication system for transmitting a short message in consideration of a telephone number is unavoidable, and therefore, duplication investment is required for communication system development.

  The present invention has been made in view of the above circumstances, and can start data communication with a mobile terminal that is not yet connected to a mobile network without making the customer aware of the telephone number. An object of the present invention is to provide a wireless packet control system, a push gateway server, a wireless terminal device, and a computer program thereof that can suppress development investment on the customer side for short message transmission.

  In order to solve the above problems, the present invention is a wireless packet control system in a mobile communication network composed of a packet network and a switching network, which receives a packet addressed to a wireless terminal and temporarily holds the packet, When the wireless terminal and the base station in the switching network and the connection between the wireless terminal and the packet data service node in the packet network are not established, a wireless terminal activation request is included in the switching network Requesting that a short message be transmitted to the wireless terminal, and transmitting the held packet to the packet network when the connection is established together.

  In order to solve the above-described problems, the present invention provides a push gateway server for accessing a wireless terminal connected to each network from a network side in a mobile communication network composed of a packet network and a switching network, Based on the wireless terminal identification number stored in the wireless terminal information management database, the wireless terminal that has requested connection is authenticated, and the IP address stored in association with the wireless terminal identification number is stored in the wireless terminal information management database. Radius that is assigned to a wireless terminal that has made a connection request and notifies the wireless terminal state management unit of information necessary for state management of the wireless terminal according to a charging packet from a packet data service node of the packet network When a short message is transmitted / received between the authentication unit and the wireless terminal via the exchange network, A short message communication unit for notifying the wireless terminal state management unit of information necessary for state management of the wireless terminal, and transferring and monitoring packets between the wireless terminal via the packet network, and the wireless terminal An IP routing control unit for notifying the wireless terminal state management unit of information necessary for state management of the mobile station, and receiving notifications from the Radius authentication unit, short message communication unit, and IP routing control unit, A base station in the network, and a wireless terminal state management unit that manages a connection state between the wireless terminal and a packet data service node in the packet network are provided.

  In the present invention, the wireless terminal state management unit manages the connection state of the wireless terminal in three states of “active state”, “dormant state”, and “null state”. When in the active state, when the packet addressed to the wireless terminal is transmitted to the packet data service node in the wireless switching network and the packet from the wireless terminal is not received for a predetermined period, the connection state of the wireless terminal is changed. It is characterized by making a transition to the dormant state.

  In the present invention, when the connection state of the wireless terminal is in a dormant state, the wireless terminal state management unit transmits an appropriate packet to a packet data service node in the packet network and then transmits a predetermined time from the wireless terminal. When no packet is received, the connection state of the wireless terminal is changed to a null state.

  In the present invention, the wireless terminal state management unit may change the connection state of the wireless terminal to an active state when receiving a charging start signal from a packet data service node in the packet network.

  In order to solve the above-described problems, the present invention provides a mobile communication network including a packet network and a switching network, a wireless terminal device including a mobile phone and a mobile terminal connected to the respective networks, When a signal indicating that a short message has arrived from a mobile phone is received, a short message incoming monitoring unit that requests the mobile phone to transfer the short message, and a short message is received from the mobile phone, A dial-up control unit that requests the mobile phone to establish a connection between the mobile terminal and a packet data service node in the packet network when a short message includes an activation request for the mobile terminal. It is characterized by that.

  In order to solve the above-described problems, the present invention provides a computer used in a push gateway server for accessing a wireless terminal connected to each network from the network side in a mobile communication network composed of a packet network and a switching network. A program that authenticates a wireless terminal that has made a connection request based on a wireless terminal identification number stored in the wireless terminal information management database, and is stored in the wireless terminal information management database in association with the wireless terminal identification number. A process of assigning an IP address to the wireless terminal that has made the connection request and notifying information necessary for status management of the wireless terminal according to a charging packet from a packet data service node of the packet network; When a short message is transmitted / received to / from the wireless terminal via the switching network, , A process for notifying information necessary for state management of the wireless terminal, and transferring and monitoring a packet with the wireless terminal via the packet network, and notifying information necessary for state management of the wireless terminal And a computer that receives the respective notifications and manages a connection state between the wireless terminal and a base station in the switching network and a connection between the wireless terminal and a packet data service node in the packet network. It is characterized by making it.

  In order to solve the above-described problems, the present invention provides a computer program used in a mobile communication network including a packet network and a switching network, and a wireless terminal device including a mobile phone and a mobile terminal connected to the respective networks. And when receiving a signal indicating that a short message has arrived from the mobile phone, the mobile phone requests the mobile phone to transfer the short message, and receives the short message from the mobile phone, When the short message includes a mobile terminal activation request, the computer is requested to establish a connection between the mobile terminal and a packet data service node in the packet network. It is characterized by making it.

  According to the wireless packet control system of the present invention, a packet addressed to a wireless terminal is received and temporarily held, and the connection between the wireless terminal and the base station and between the wireless terminal and the packet data service node (PDSN) is not established. Requesting the switching network to send a short message including a wireless terminal activation request to the wireless terminal when in a state, and transmitting the previously held packet to the packet network when the connection is established together Thus, data communication can be started with a wireless terminal that is not yet connected to the exchange network. In addition, the customer need not be aware of the telephone number when developing a data communication system.

According to the push gateway server of the present invention, the wireless terminal state management unit receives the respective notifications from the Radius authentication unit, the short message communication unit, and the IP routing control unit, and the wireless terminal, the base station in the switching network, and the wireless terminal By managing the connection state with the PDSN in the packet network, it becomes possible to specify the operation in each connection state, and transmission of useless packets and short messages to the packet network and the switching network, respectively. Can be suppressed.
In addition, by transmitting a packet addressed to the received wireless terminal in the active state, communication can be started between the wireless terminal and the network side terminal, and by transmitting an appropriate packet in the dormant state, The disconnected wireless link can be connected, and by transmitting a packet addressed to the received wireless terminal, communication can be started between the wireless terminal and the network side terminal. Further, by transmitting a short message in the null / release state, it is possible to establish a connection between the disconnected wireless terminal and the base station in the exchange network, and the wireless terminal and the PDSN in the packet network. By transmitting a packet addressed to the terminal, communication can be started between the wireless terminal and the network side terminal.

In addition, the mismatch between the connection state of the wireless terminal recognized by the push gateway server and the actual connection state of the wireless terminal device is eliminated by the time monitoring by the push gateway server using a timer or the like. It is possible to avoid a state in which communication with the terminal device on the side is not possible. As a result, connection state management can be performed accurately.
Furthermore, since there is no dedicated signal to notify that the connection status has changed at present, the connection status of the wireless terminal is recognized using the signal originally used for charging control, and the wireless terminal and the network side A state in which communication with the terminal is not possible can be avoided. As a result, the connection state can be managed accurately.

According to the wireless terminal device of the present invention, when the dial-up control unit receives a signal indicating that the short message has arrived from the mobile phone as a result of the short message incoming monitoring by the short message incoming monitoring unit, the short message is sent to the mobile phone. When the mobile phone activation request is included in the short message, the mobile phone is requested to establish a connection between the mobile terminal and the PDSN in the packet network. The short message can be requested to be transferred to the mobile terminal, and by receiving the short message, the mobile terminal can be requested to establish a connection with the PDSN in the packet network.
Further, since the wireless terminal activation request is included in the short message, it is possible to prevent an erroneous connection establishment request with the PDSN when the mobile terminal receives a non-applicable short message.

FIG. 1 is a system configuration diagram cited for explaining the connection configuration of the wireless packet control system of the present invention.
In FIG. 1, reference numeral 1 denotes a wireless terminal including a mobile phone and a mobile terminal (here, a PC is assumed) that is connected to a packet network 3 such as a PacketOne via a switching network 2 by connecting the mobile phone with a cable. Yes, it is connected to the PDSN 30 of the network side system (network side push server 6) via the switching network 2.
The switching network 2 includes a base station (BTS: Base Transceiver Station) that communicates wirelessly with a mobile phone, and a base station that controls the base station and establishes a wireless link with the mobile phone to a packet data service node 30 (hereinafter referred to as the packet data service node 30 A mobile switching center (MSC) that notifies the link state to the PDSN (packet Data Service Node), a common line signal relay switch (STP) that relays the common signal line, and A short message control device 20 (SMSC: Short Message Service Center) that builds a switching network control system using a CDMA (CDMA Base Station Controller) or the like, a CDMA (Code Division Multiple Access) wireless controller, and distributes a short message to the wireless terminal 1 ) To the network side system.
In the packet network 3, packet network control systems such as PDSN 30, HA (Home Agent), and Proxy Radius are constructed. The PDSN 30 is a device that establishes a PPP link with the wireless terminal 1. It has a function of notifying the push GW server 4 of the state of the wireless link of the base station notified from the CBSC and the state of the PPP link of the wireless terminal 1 managed by the PDSN 30.

The network side system includes the push GW server 4, the conversion router 5, and the network side push server 6 of the present invention.
The push GW server 4 is notified of the connection state of the wireless link (wireless terminal 1-base station) and the PPP link (wireless terminal 1-PDSN 30) from the PDSN 30 in the packet network 3, stores and holds these, and the network side push server When a request for pushing a packet to the wireless terminal 1 is received from 6, the packet has a function of transmitting the packet to the PDSN device 30 according to a procedure described later. Details will be described later. Also, the conversion router 5 connects the terminal devices (the rear terminal 7 and the network side terminal) on the IPv6 (Internet Protocol version 6) connected to both ends thereof via the existing IPv4 (Internet Protocol version 4) network. Has a bi-directional data conversion function. The network-side push server 6 is a server that pushes data such as contents to the wireless terminal 1 using IP packets.

  In the above-described configuration, the distribution route of bush data such as content in the active state is the network side push server 6, the conversion router 5, the push GW server 4, HA, PDSN 30, CBSC, BTS, wireless terminal 1, and rear terminal 7. The delivery route of the short message including the mobile phone activation request in the released state is the network side push server 6, the conversion router 5, the push GW server 4, the SMSC 20, the STP, the MSC, the CBSC, the BTS, and the wireless terminal 1.

FIG. 2 is a block diagram showing the functions of the internal configuration of the push GW server 4 of the present invention shown in FIG.
The push GW server 4 of the present invention functionally includes a short message (SMS) communication unit 41, a wireless terminal information management DB 42, a wireless terminal state management unit 43, and a Radius (Remote Authentication Dial in User Service) authentication unit. 44 and an IP routing control unit 45.

The SMS communication unit 41 has a function of transmitting / receiving a short message to / from the wireless terminal 1 via the SMSC 20 of the switching network 2 and notifying the wireless terminal state management unit 43 of information necessary for state management of the wireless terminal 1. Have. The wireless terminal information management DB 42 is a database in which telephone numbers, IP addresses, and terminal identification numbers are uniquely associated and registered.
On the other hand, the Radius authentication unit 44 is connected to the PDSN 30 in the packet network 3 and authenticates the wireless terminal 1 that has made a connection request based on the wireless terminal identification number stored in the wireless terminal information management DB 42, thereby managing the wireless terminal information management. The IP address stored in the DB 42 in association with the wireless terminal identification number is assigned to the wireless terminal 1 that has made a connection request, and the state management of the wireless terminal 1 is performed according to the charging packet from the PDSN 30 in the packet network. Has a function of notifying the wireless terminal state management unit 43 of information necessary for the communication. The IP routing control unit 45 is located between the wireless terminal 1 and the network-side push server 6 and transfers and monitors packets with the wireless terminal 1 via the packet network 3 and manages the state of the wireless terminal 1. It has a function of notifying the wireless terminal state management unit 43 of necessary information.

The wireless terminal state management unit 43 receives the respective notifications necessary for state management of the wireless terminal 1 from the SMS communication unit 41, the Radius authentication unit 44, and the IP routing control unit 45, and receives the base station in the wireless terminal 1 and the switching network 2 It has a function of managing a connection state with a station (hereinafter referred to as a wireless link) and a connection state between the wireless terminal 1 and the PDSN 30 in the packet network 3 (hereinafter referred to as a PPP: Point to Point Protocol link). Here, the radio link is a connection between the radio terminal 1 and the base station, and the PPP link is a connection between the radio terminal 1 and the PDSN 30 located in the upper layer.
The wireless terminal state management unit 43 manages the connection state of the wireless terminal 1 in three states: an “active state”, a “dormant state”, and a “null release state”. When the wireless terminal 1 is in the active state, after the packet addressed to the wireless terminal is transmitted to the PDSN 30 in the packet network 3, the connection state of the wireless terminal 1 is changed when the packet from the wireless terminal 1 is not received for a predetermined period. When a transition is made to the dormant state, and when the connection state of the wireless terminal 1 is in the dormant state, an appropriate packet is transmitted to the PDSN 30 in the packet network 3 and then a packet is not received from the wireless terminal 1 for a predetermined time. , The connection state of the wireless terminal 1 is changed to the null state, and a charging start signal is transmitted from the PDSN 30 in the packet network 3. When signal, it also has functions for state transition control for shifting the connection state of the wireless terminal 1 to the active state.

FIG. 3 is a block diagram showing an expanded function of the internal configuration of the wireless terminal device of the present invention. As described above, the wireless terminal device 1 of the present invention is formed by connecting a mobile phone 10 as a mobile device to a PC (Personal Computer) as a mobile terminal. A PC as a mobile terminal includes an SMS incoming call management unit 11, an SMS extraction / determination unit 12, and a dial-up control unit 13.
The SMS incoming call management unit 11 has a function of requesting the mobile phone 10 to transfer the short message when it receives a signal indicating that the short message has arrived from the mobile phone 10, and the SMS extraction / determination unit 12. Extracts a short message from the mobile phone 10 in response to the notification from the SMS incoming call monitoring unit 11, determines the content of the extracted short message, and if the dial-up is requested, the dial-up control unit 13 Notification to that effect.
The dial-up control unit 13 receives a short message from the mobile phone 10, and when the short message includes an activation request for the mobile phone 10, the dial-up control unit 13 sends the mobile phone and the PDSN 30 in the packet network to the mobile phone. Has a function of requesting establishment of a connection.

FIG. 4 is a flowchart showing the state transition from the reception of an IP packet to the start of data communication. Here, the processing procedure of the push gateway server program in the present invention is also shown.
The operation of the embodiment of the present invention shown in FIGS. 1 to 3 will be described in detail below with reference to the flowchart shown in FIG.

As described above, the connection state of the wireless terminal 1 by the push GW server 4 is managed according to the state information shown in the following (1) to (3).
(1) “Active” when both the radio link and PPP link are “ON”
(2) “Dormant state” when radio link is “OFF” and PPP link is “ON”
(3) "Null / open state" when both the radio link and PPP link are "OFF"

The push GW server 4 receives the IP packet via the IP routing control unit 45 and confirms the state of the wireless terminal 1 at that time by the wireless terminal state management unit 43 (S41). Here, when both the wireless link and the PPP link are in the “active state” of “ON”, the received IP packet is transferred to the packet network 3 via the IP routing control unit 45 (S 46). The IP packet of (wireless terminal 1 → network side push server 6) is monitored (S47).
If there is an IP packet, data communication is started. If there is no IP packet, the process proceeds to a timer determination process for making a state transition to a “dormant state” or a “null state” (S51). That is, the wireless terminal state management unit 43 transitions to the “dormant state” when a timeout due to the dormant timer is detected (S52), and transitions to the “null state” when a timeout due to the null timer is detected (S52). S53). After the transition to the “dormant state”, the process branches to the process of S49, and after the transition to the “null state”, the process branches to the process of S43.

On the other hand, when the wireless terminal 1 is in the “null / open state” in which both the wireless link and the PPP link are “OFF”, the received packet is accumulated and a short message including a wireless terminal activation request is transmitted ( S42, S43). Then, after the wireless link and the PPP link are established, the received bucket addressed to the wireless terminal is transmitted to the PDSN 30 via the packet network 3.
That is, as a result of receiving a short message response or determining an error code (S44), if it is detected that the wireless terminal 1 is busy, the process proceeds to S49. Here, an ICMP echo request is issued to the PDSN 30 Then, the uplink IP packet is monitored (S49, S50). Here, when an IP packet is detected, a transition is made to the “active state”, and when no IP packet is detected, a transition is made to the dormant state or the null state by the above-described timer monitoring (S51 to S53).

On the other hand, when it is determined in the determination process of S44 that the normal state is normal, the authentication and billing packets are further monitored (S45). Here, the “authentication and billing packet” is a billing message issued from the PDSN 30 in the packet network 3 and corresponds to a signal for starting or stopping an account, which will be described later.
Here, when the authentication and charging packets are detected, the wireless terminal state management unit 43 changes the state of the wireless terminal 1 to the active state, and when it is not detected, the ICMP echo request (S49), It leads to state transition by uplink bucket monitoring and timer monitoring (S50 to S53). If other determination results are obtained in the determination process of S44, the accumulated IP packets are discarded (S46).

On the other hand, when the wireless terminal 1 is in the “dormant state” of the wireless link “OFF” and the PPP link “ON”, after storing the packet (S48), an appropriate packet (ICMP echo request such as ping) is sent to the PDSN 30. Then, after the PDSN 30 transmits the packet to the CDMA radio network controller (CBSC) and the radio link is established, the packet addressed to the radio terminal 1 is transmitted to the PDSN 30.
That is, after issuing an ICMP echo request (S49), an upstream IP packet is monitored (S50), and if there is an IP packet, the active state is changed (S54), and data communication is started. The process proceeds to a timer determination process for changing the state to “dormant state” and “null state” (S51). Here, the wireless terminal state management unit 43 transitions to the “dormant state” when a timeout due to the dormant timer is detected (S52), and transitions to the “null state” when a timeout due to the null timer is detected (S53). ). Note that after the transition to the “dormant state”, the process branches to the process of S49, and after the transition to the “null state”, the process branches to the process of S43.

The operation viewed from the wireless terminal 1 will be described as follows. That is. When receiving a signal indicating that a short message has arrived from the mobile phone 10, the mobile terminal constituting the wireless terminal 1 requests the mobile phone 10 to transfer the short message. At this time, when the mobile terminal receives a short message from the mobile phone 10 by the SMS incoming monitoring unit 11 and the SMS extraction / determination unit 12 determines that the short message includes a wireless terminal activation request, The mobile phone 10 is requested to establish a wireless link and a PPP link via the dial-up control unit 13.
As a result, the mobile terminal can request the mobile phone 10 to transfer a short message by constantly monitoring the signal from the mobile phone 10, and can receive a PPP link to the mobile phone 10 by receiving the short message. An opportunity to request establishment can be obtained. Moreover, since the wireless terminal activation request is included in the short message, it is possible to prevent the wireless terminal 1 from requesting establishment of an erroneous wireless link and PPP link when receiving a short message that does not correspond.

Note that the push GW server 4 also has a function of eliminating a mismatch with the connection state managed by the wireless terminal 1 itself.
Specifically, when a packet addressed to the wireless terminal 1 is transmitted to the PDSN 30 and the transmission packet from the PDSN 30 to the wireless terminal 1 is not received for a predetermined time when the connection state of the wireless terminal 1 is “active” In this case, the connection state of the wireless terminal 1 is changed to the “dormant state”. Alternatively, when the connection state of the wireless terminal 1 is “dormant state”, if a transmission packet is not received from the wireless terminal 1 for a predetermined time after transmitting an appropriate packet to the PDSN 30, the connection state of the wireless terminal 1 Is transitioned to the “null state”.

FIG. 14 is a diagram quoted for explaining the state management correspondence between the state of the wireless terminal 1 recognized by the push GW server 4 and the actual state of the wireless terminal 1.
Here, the pattern 1 (FIG. 5), the pattern 5 (FIG. 9), and the pattern 9 (FIG. 13) are patterns in which the terminal state recognition in both matches, and other patterns are recognized. The wireless terminal state management unit 43 of the push GW server 4 resolves the recognition inconsistency in the following procedure.
5 to 13 show operation sequences between network constituent devices (rear terminal 7, wireless terminal 1, PDSN 30, push GW server 4, conversion router 5, network side push server 6) in each pattern. .

In the state matching pattern shown in FIG. 5, the IPv6 packet transmitted from the network side push server 6 is converted into an IPv4 bucket via the conversion router 5 and reaches the push GW server 4. Here, the state of the wireless terminal 1 is confirmed (“active state”), and the IPv4 packet is distributed via the wireless terminal 1 and the rear terminal 7 receives the IPv6 packet.
The example illustrated in FIG. 6 is a pattern in which the push GW server 4 recognizes the state of the wireless terminal 1 as the “active state” and resolves the state mismatch when the actual wireless terminal 1 is in the “dormant state”. Here, the establishment of the radio link is started when the IPv4 bucket reaches the PDSN 30, and the states are matched. That is, after confirming the state of the wireless terminal 1 (“active state”), the terminal state is maintained in the “active state” by an account request signal (account start) for authentication issued from the PDSN 30.

The example illustrated in FIG. 7 is a pattern in which the push GW server 4 recognizes the state of the wireless terminal 1 as the “active state” and eliminates the state mismatch when the actual wireless terminal 1 is in the “null state”. Here, the push GW server 4 matches the states by timeout monitoring of the dormant timer and the null timer, and updates the terminal state recognized by the wireless terminal 1. That is, the respective timers are updated from the “active state” to the “dormant state” and from the “dormant state” to the “null state”.
The example shown in FIG. 8 is a pattern in which the push GW server 4 recognizes the state of the wireless terminal 1 as the “dormant state” and resolves the state mismatch when the actual wireless terminal 1 is in the “active state”. Here, using the fact that the ICMP echo request (Ping) issued from the push GW server 4 reaches the wireless terminal 1 without time-out, the wireless communication is triggered by the reception of the ICMP echo response (Ping-Ack) from the wireless terminal 1. The state of the terminal 1 is changed from the “dormant state” to the “active state” to match the recognition.

The example illustrated in FIG. 10 is a pattern in which the push GW server 4 recognizes the state of the wireless terminal 1 as a “dormant state” and eliminates the state mismatch when the actual wireless terminal 1 is in the “null state”. Here, the push GW server 4 matches the state by time-out monitoring by the ICMP echo response timer. That is, after confirming the terminal state (“dormant state”), the push GW server 4 issues an ICMP echo request to the PDSN 30 and updates the terminal state after detecting a timeout (“dormant state → null state”). .
The example shown in FIG. 11 is a pattern in which the push GW server 4 recognizes the state of the wireless terminal 1 as “null state” and resolves the state mismatch when the actual wireless terminal 1 is in the “active state”. Here, when the push GW server 4 receives a short message response (busy) from the wireless terminal 1, it updates the terminal state (“null state → dormant state”).

In the example shown in FIG. 12, the push GW server 4 recognizes the state of the wireless terminal 1 as the “null state” and resolves the recognition state mismatch when the actual wireless terminal 1 recognizes the “dormant state”. It is a pattern. Here, when the push GW server 4 transmits a short message and receives a response (normal) from the wireless terminal 1, it sets an access request wait timer, performs time monitoring, and sends an ICMP echo request to the PDSN 30 at time-out. (Ping) is transmitted. The terminal state is updated (“null state → active state”) when the account start signal for accounting is received from the PDSN 30.
Note that description of the state matching patterns in FIGS. 9 and 13 is omitted.

As described above, according to the present invention, it is possible to regulate the operation in each connection state by managing the connection state of the wireless terminal 1. It is also possible to suppress transmission of useless packets and Shosh messages to the packet network and the switching network.
Specifically, when the push GW server 4 receives a packet addressed to the wireless terminal 1, the push GW server 4 executes the following operation depending on the connection state of the wireless terminal 1. That is, in the active state, the received packet addressed to the wireless terminal 1 is transmitted to the PDSN 30, and in the “dormant state”, an appropriate packet is transmitted to the PDSN 30 and received after the wireless link is established. A packet addressed to the wireless terminal 1 is transmitted to the PDSN 30. When in the “null state”, a short message including a wireless terminal activation request is transmitted to the switching network 2 (SMSC 20), and after the wireless link and the PPP link are established, the received packet addressed to the wireless terminal 1 is transmitted. It transmits to PDSN30. When the BSC that controls the base station receives an appropriate packet (ICMP echo request (Ping) or the like), the BSC establishes a wireless link with the wireless terminal 1. Further, when the received short message includes a wireless terminal activation request, the wireless terminal 1 automatically makes a call, establishes a wireless link with the BSC, and then establishes a PPP link with the PDSN 30.

As a result, communication can be started between the wireless terminal 1 and the network side terminal by transmitting the received packet addressed to the wireless terminal 1 in the “active state”, and appropriate in the “dormant state”. By transmitting a packet (ICMP echo request (Ping)), the disconnected wireless link can be connected. At this time, by transmitting a packet addressed to the wireless terminal 1, the wireless terminal 1 and Communication can be started with the network side terminal.
In the “null state”, by sending a short message, the disconnected radio link and PPP link can be connected. At this time, by transmitting a packet addressed to the wireless terminal 1, Communication can be started between the terminal 1 and the network side terminal.

Further, the push GW server 4 can resolve the inconsistency in the recognition of the connection state with the wireless terminal 1. For example, when the connection state of the wireless terminal 1 is “active state”, the push GW server 4 is addressed to the received wireless terminal 1. When the packet is not received from the wireless terminal 1 for a predetermined time after the packet is transmitted to the PDSN 30, the connection state of the wireless terminal 1 can be changed to the “dormant state”. Further, when the connection state of the wireless terminal 1 is “dormant state”, if a packet is not received from the wireless terminal 1 for a predetermined time after transmitting an appropriate packet to the PDSN 30, the connection state of the wireless terminal 1 is changed to “ Transition to the “null state”.
This eliminates the inconvenience caused by the mismatch between the connection state of the wireless terminal 1 recognized by the push GW server 4 and the connection state of the actual wireless terminal 1 when the push GW server 4 performs timer monitoring. The state where communication between 1 and the network side terminal cannot be performed can be avoided. As a result, the connection state can be managed accurately. In the active state of the connection state, when the charging stop message (account stop signal) is received from the PDSN 30, the connection state can be changed from the “active state” to the “dormant state”. At present, there is no dedicated signal for notifying that the connection state has changed. Therefore, the connection state of the wireless terminal 1 is recognized using the signal originally used for charging control, and the wireless terminal 1 and the network side A state in which communication with the terminal is not possible can be avoided. As a result, the connection state can be managed accurately.

  In the push GW server 4 shown in FIG. 2, the SMS communication unit 41, the wireless terminal information management DB 42, the wireless terminal state management unit 43, the Radius authentication unit 44, the IP routing control unit 45, and FIG. The procedure executed by each of the SMS incoming call management unit 11, the SMS extraction / determination unit 12 and the dial-up control unit 13 of the wireless terminal 1 shown is recorded on a computer-readable recording medium and recorded on this recording medium. The wireless packet control system, push gateway server, or wireless terminal device of the present invention can be realized by causing the computer system to read and execute the program. The computer system here includes an OS and hardware such as peripheral devices.

Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
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.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design and the like within the scope not departing from the gist of the present invention.

It is the system block diagram quoted in order to demonstrate the connection structure of the radio | wireless packet control system of this invention. It is the block diagram which expanded and showed the internal structure of the push GW server shown in FIG. FIG. 2 is a block diagram showing an expanded function of the internal configuration of the wireless terminal shown in FIG. 1. It is the figure which showed the mode of the state transition after starting IP communication after receiving an IP packet with the flowchart. It is a figure which shows the operation | movement sequence between the push GW server and related apparatuses which eliminate the mismatch of the state recognized between wireless terminals. It is a figure which shows the operation | movement sequence between the push GW server and related apparatuses which eliminate the mismatch of the state recognized between wireless terminals. It is a figure which shows the operation | movement sequence between the push GW server and related apparatuses which eliminate the mismatch of the state recognized between wireless terminals. It is a figure which shows the operation | movement sequence between the push GW server and related apparatuses which eliminate the mismatch of the state recognized between wireless terminals. It is a figure which shows the operation | movement sequence between the push GW server and related apparatuses which eliminate the mismatch of the state recognized between wireless terminals. It is a figure which shows the operation | movement sequence between the push GW server which resolves the mismatch of the state recognized between wireless terminals, and a related apparatus. It is a figure which shows the operation | movement sequence between the push GW server which resolves the mismatch of the state recognized between wireless terminals, and a related apparatus. It is a figure which shows the operation | movement sequence between the push GW server which resolves the mismatch of the state recognized between wireless terminals, and a related apparatus. It is a figure which shows the operation | movement sequence between the push GW server which resolves the mismatch of the state recognized between wireless terminals, and a related apparatus. It is the figure which showed the correspondence of the state management of the state of the radio | wireless terminal recognized by the push GW server, and the state of an actual radio | wireless terminal in tabular form.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Wireless terminal, 2 ... Switching network, 3 ... Packet network, 4 ... Push GW server, 5 ... Conversion router, 6 ... Network side push server, 7 ... Subordinate terminal, 10 ... Mobile phone, 11 ... SMS incoming call monitoring part , 12 ... SMS extraction / determination unit, 13 ... dial-up control unit, 41 ... SMS communication unit, 42 ... wireless terminal information management DB, 43 ... wireless terminal state management unit, 44 ... Radius authentication unit, 45 ... IP routing control unit

Claims (8)

A wireless packet control system in a mobile communication network composed of a packet network and a switching network,
A state in which a packet addressed to a wireless terminal is received and the packet is temporarily held, and a connection between the wireless terminal and a base station in the switching network and a connection between the wireless terminal and a packet data service node in the packet network are not established Requesting the switching network to transmit a short message including a wireless terminal activation request to the wireless terminal, and transmitting the held packet to the packet network when the connection is established together. And a wireless packet control system. In a mobile communication network composed of a packet network and a switching network, a push gateway server for accessing a wireless terminal connected to each network from the network side,
Based on the wireless terminal identification number stored in the wireless terminal information management database, the wireless terminal that has requested connection is authenticated, and the IP address stored in association with the wireless terminal identification number is stored in the wireless terminal information management database. Assigns to a wireless terminal that has made a connection request, and notifies the wireless terminal state management unit of information necessary for state management of the wireless terminal according to a charging packet transmitted from a packet data service node of the packet network A Radius authenticator
A short message communication unit that transmits and receives a short message to and from the wireless terminal via the switching network, and notifies a wireless terminal state management unit of information necessary for state management of the wireless terminal;
An IP routing control unit that performs packet transfer and monitoring with the wireless terminal via the packet network, and notifies the wireless terminal state management unit of information necessary for state management of the wireless terminal;
Receiving notifications necessary for state management of the wireless terminal from the Radius authentication unit, short message communication unit, and IP routing control unit, connection state between the wireless terminal and a base station in the switching network, and the wireless terminal A wireless terminal state management unit for managing a connection state with a packet data service node in the packet network;
A push gateway server characterized by comprising: The wireless terminal state management unit
The connection state of the wireless terminal is managed in three states of “active state”, “dormant state”, and “null state”. When the wireless terminal is in the active state, the received packet addressed to the wireless terminal 3. The connection state of the wireless terminal is changed to a dormant state when a packet from the wireless terminal is not received for a predetermined period after being transmitted to a packet data service node in the packet network. Push gateway server. The wireless terminal state management unit
When the connection state of the wireless terminal is in a dormant state, the connection of the wireless terminal is performed when a packet is not received from the wireless terminal for a predetermined time after transmitting an appropriate packet to the packet data service node in the packet network. The push gateway server according to claim 2 or 3, wherein the state is shifted to a null state. The wireless terminal state management unit
The push gateway according to any one of claims 2 to 4, wherein when a charging start signal is received from a packet data service node in the packet network, the connection state of the wireless terminal is changed to an active state. server. In a mobile communication network composed of a packet network and a switching network, a wireless terminal device comprising a mobile phone and a mobile terminal connected to the respective networks,
When receiving a signal indicating that a short message has arrived from the mobile phone, a short message incoming monitoring unit that requests the mobile phone to transfer the short message;
Establishing a connection between the mobile terminal and a packet data service node in the packet network with respect to the mobile phone when a short message is received from the mobile phone and the start request of the mobile terminal is included in the short message A dial-up control unit for requesting,
A wireless terminal device comprising: In a mobile communication network composed of a packet network and a switching network, a computer program used for a push gateway server for accessing a wireless terminal connected to each network from the network side,
Based on the wireless terminal identification number stored in the wireless terminal information management database, the wireless terminal that has requested connection is authenticated, and the IP address stored in association with the wireless terminal identification number is stored in the wireless terminal information management database. A process for allocating to a wireless terminal that has made a connection request and notifying information necessary for state management of the wireless terminal according to a charging packet from a packet data service node of the packet network;
A process of sending and receiving a short message to and from the wireless terminal via the switching network, and notifying information necessary for state management of the wireless terminal;
A process for transferring and monitoring packets with the wireless terminal via the packet network, and notifying information necessary for state management of the wireless terminal;
Receiving each notification necessary for the state management of the wireless terminal, managing the connection state between the wireless terminal and a base station in the switching network, and the connection state between the wireless terminal and a packet data service node in the packet network Processing to
A push gateway server program that runs a computer. In a mobile communication network composed of a packet network and a switching network, a computer program used for a wireless terminal device composed of a mobile phone and a mobile terminal connected to the respective networks,
When receiving a signal indicating that a short message has arrived from the mobile phone, a process for requesting the mobile phone to transfer the short message;
Establishing a connection between the mobile terminal and a packet data service node in the packet network with respect to the packet network when a short message is received from the mobile phone and the mobile message includes a start request for the mobile terminal Processing that requires
A wireless terminal program that causes a computer to execute.

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