WO2010125905A1

WO2010125905A1 - Mobile communication method, mobile communication system, short message delivery server, positional information management server, and session management server

Info

Publication number: WO2010125905A1
Application number: PCT/JP2010/056526
Authority: WO
Inventors: 崇森田; 威津馬田中
Original assignee: 株式会社エヌ・ティ・ティ・ドコモ
Priority date: 2009-04-27
Filing date: 2010-04-12
Publication date: 2010-11-04
Also published as: JP2010258901A; JP5081862B2

Abstract

A mobile communication method comprises: a step wherein a server (SMS-GW: Short Message Service-Gateway) transmits a received positional information inquiry request signal to a server (HSS: Home Subscriber Server) in response to the delivery request signal of the SMS message addressed to a mobile station (UE #1: User Equipment #1); a step wherein the server (HSS) acquires the RAT (Radio Access Technology) type of a waiting object of the mobile station (UE #1) from a server (PCRF: Policy and Charging Rules Function) in response to the received positional information inquiry request signal; a step wherein the server (HSS) transmits to the server (SMS-GW) a positional information inquiry response signal including the positional information of the mobile station (UE #1) and the RAT type of the waiting object of the mobile station (UE #1); and a step wherein the server (SMS-GW) delivers the SMS message on the basis of the positional information of the mobile station (UE #1) and the RAT type of the waiting object thereof included in the received positional information inquiry response signal.

Description

Mobile communication method, mobile communication system, short message distribution server, location information management server, and session management server

The present invention relates to a mobile communication method, a mobile communication system, a short message distribution server, a location information management server, and a session management server.

With reference to FIG. 13 and FIG. 14, the delivery method of the SMS (Short Message Service) message in the mobile communication system defined by the current 3GPP will be described.

As shown in FIG. 13, in such a mobile communication system, the mobile station UE # 1 makes a change to the server HSS (Home Subscriber Server) when the radio access network (RAT: Radio Access Technology) to be awaited is changed. Thus, the location information of the mobile station UE # 1 is registered.

In this mobile communication system, the mobile station UE # 1 determines that the server PCRF (Policy) is changed when the RAT to be awaited is changed, that is, when the session between the core network device and the radio access network device is switched. and Charging Rules Function), it is configured to register the standby RAT type of the new mobile station UE # 1.

Further, as shown in FIG. 14, in (1), when the server SMS-GW (SMS-Gateway) receives a delivery request signal for an SMS message addressed to the mobile station UE # 1 from the SMS center, in (2) The location information of the mobile station UE # 1 is acquired from the server HSS.

In (3), the server SMS-GW determines the delivery destination of the SMS message addressed to the mobile station UE # 1 (in the example of FIG. 14, “UTRAN” based on the use priority of the location information set by the communication carrier. / SGRAN ”is determined, and in (4), the SMS message addressed to the mobile station UE # 1 is distributed to the determined distribution destination.

In this RAT, when the mobile station UE # 1 is not waiting, in (5), the server SMS-GW determines the distribution destination (in FIG. 14) determined based on the location information of the next usage priority. In the example, an SMS message addressed to the mobile station UE # 1 is retransmitted to a node EPC (Evolved Packet Core) that accommodates “E-UTRAN”.

However, as described above, in the mobile communication system stipulated by the current 3GPP, the location information set by the communication carrier is determined by the server SMS-GW regardless of the standby RAT of the mobile station UE # 1. Based on the usage priority order of the mobile station UE # 1, the delivery destination of the SMS message addressed to the mobile station UE # 1 is determined, and the mobile station UE # 1 cannot wait in a plurality of RATs. When an SMS message is delivered to a RAT that has not been performed, there is a problem that the delay time until the mobile station UE # 1 receives the SMS message increases due to retransmission of the SMS message. .

Therefore, the present invention has been made in view of the above-described problems, and a mobile communication method, a mobile communication system, a short message distribution server, and a location information management server that can shorten the distribution time of a short message addressed to a mobile station. And it aims at providing a session management server.

A first feature of the present invention is a mobile communication method for transmitting a short message to a mobile station that is waiting in any of a plurality of types of radio access networks, the short message distribution server receiving In response to a delivery request signal for a short message addressed to the mobile station, a location information inquiry request signal for inquiring the location information of the mobile station to the location information management server managing the location information of each mobile station. Transmitting the mobile station and the radio access network corresponding to each session between the short message distribution server and the radio access network device according to the received location information inquiry request signal. From the session management server managing the type, the mobile station's standby access wireless access A step of acquiring a network type, and the location information management server sends a location information inquiry response including the location information of the mobile station and the type of the radio access network to be listened to by the mobile station to the short message distribution server. The short message distribution server, based on the location information of the mobile station included in the received location information inquiry response signal and the type of the radio access network to be listened to by the mobile station. And a step of delivering a message.

A second feature of the present invention is a mobile communication method for transmitting a short message to a mobile station waiting in any of a plurality of types of radio access networks, the short message distribution server and the radio access network. When the session management server that manages the type of mobile station and radio access network corresponding to each session with the device detects a change in the type of radio access network that is the standby target of each mobile station, each mobile station A step of notifying the location information management server that manages the location information of the station and the type of the radio access network to be listened to by each mobile station, and the location information management server from the session management server Depending on the notification, the type of radio access network to be listened to by each mobile station And a location information query for the short message delivery server to query the location information management server for location information of the mobile station in response to the received short message delivery request signal addressed to the mobile station. Transmitting the request signal, and the location information management server responds to the received location information inquiry request signal to the short message distribution server with respect to the location information of the mobile station and the waiting target of the mobile station. A step of transmitting a location information inquiry response signal including a type of radio access network; and the short message distribution server, the location information of the mobile station included in the received location information inquiry response signal, and a waiting target of the mobile station Delivering the short message based on a type of radio access network; and And summarized in that a.

A third feature of the present invention is a mobile communication method for transmitting a short message to a mobile station that is standing by in any of a plurality of types of radio access networks, the short message distribution server receiving In response to a delivery request signal for a short message addressed to the mobile station, a location information inquiry request signal for inquiring the location information of the mobile station to the location information management server managing the location information of each mobile station. To the session management server that transmits and manages the type of the mobile station and the radio access network corresponding to each session between the short message distribution server and the radio access network device, Radio access network type inquiry request signal for inquiring the type of access network Transmitting, a step in which the location information management server transmits a location information inquiry response signal including location information of the mobile station to the short message delivery server, and the session management server comprises the short message delivery. A step of transmitting a radio access network type inquiry response signal including a type of a radio access network to be awaited by the mobile station to the server; and the short message distribution server is included in the received position information inquiry response signal And the step of delivering the short message based on the location information of the mobile station and the type of the radio access network to be listened to by the mobile station included in the received radio access network type inquiry response signal. To do.

According to a fourth aspect of the present invention, there is provided a mobile communication system configured to transmit a short message to a mobile station that is waiting in any of a plurality of types of radio access networks. Managing the distribution server, the location information management server that manages the location information of each mobile station, and the type of mobile station and radio access network corresponding to each session between the short message delivery server and the radio access network device The short message delivery server, in response to the received short message delivery request signal addressed to the mobile station, the location information management server of the location information of the mobile station. Configured to transmit a position information inquiry request signal for inquiring And the short message is distributed based on the location information of the mobile station included in the location information inquiry response signal received from the location information management server and the type of the radio access network to be listened to by the mobile station And the location information management server receives from the session management server, in response to the location information inquiry request signal received from the short message delivery server, a radio access network that is a standby target of the mobile station. A function configured to acquire the type of the mobile station, and to the short message distribution server, the location information of the mobile station and the type of the radio access network that is the standby target of the mobile station acquired from the session management server Configured to send location information query response signals that contain And summarized in that comprises a Functionality.

A fifth feature of the present invention is a mobile communication system configured to transmit a short message to a mobile station that is waiting in any of a plurality of types of radio access networks, A distribution server; a position information management server that manages position information of each mobile station and a type of a radio access network to be awaited by each mobile station; the short message distribution server and a radio access network device; And a session management server that manages the type of radio access network corresponding to each session between the mobile station and the short message distribution server in the received short message distribution request signal addressed to the mobile station In response, the location information management server receives the location information of the mobile station. A location information inquiry request signal for inquiring about the mobile station, location information of the mobile station included in the location information inquiry response signal received from the location information management server, and a waiting target of the mobile station Based on the type of the radio access network, and the location information management server receives the location information inquiry request signal received from the short message delivery server. In response, the short message distribution server has a function configured to transmit a position information inquiry response signal including the position information of the mobile station and the type of the radio access network to be listened to by the mobile station. The session management server then waits for each mobile station to receive a wireless access network. When it detects a change in the type of network, to the location information management server, and summarized in that comprises a function configured to notify.

According to a sixth aspect of the present invention, there is provided a mobile communication system configured to transmit a short message to a mobile station that is waiting in any of a plurality of types of radio access networks. Managing the distribution server, the location information management server that manages the location information of each mobile station, and the type of mobile station and radio access network corresponding to each session between the short message delivery server and the radio access network device The short message delivery server, in response to the received short message delivery request signal addressed to the mobile station, the location information management server of the location information of the mobile station. Configured to transmit a position information inquiry request signal for inquiring And a radio access network type inquiry request signal for inquiring of the type of the radio access network to be listened to by the mobile station in response to the received short message delivery request signal addressed to the mobile station. And the radio access network type inquiry response signal received from the session management server and the location information of the mobile station included in the location information inquiry response signal received from the location information management server. And a function configured to deliver the short message based on a type of a radio access network to be awaited by the mobile station, and the location information management server receives from the short message delivery server In response to the position information inquiry request signal And a function configured to transmit a position information inquiry response signal including the position information of the mobile station to the short message distribution server, and the session management server includes the short message distribution In response to the radio access network type inquiry request signal received from the server, a radio access network type inquiry response signal including the type of the radio access network that the mobile station is waiting for is transmitted to the short message distribution server. The gist of the present invention is to have the functions configured as described above.

A seventh feature of the present invention is short message delivery used in a mobile communication system configured to transmit a short message to a mobile station that is waiting in any of a plurality of types of radio access networks. In order to inquire the location information management server that manages the location information of each mobile station in response to the received short message delivery request signal addressed to the mobile station. A function configured to transmit a location information inquiry request signal of the mobile station, location information of the mobile station included in the location information inquiry response signal received from the location information management server, and radio access to be listened to by the mobile station And a function configured to deliver the short message based on a network type. The the gist.

An eighth feature of the present invention is short message delivery used in a mobile communication system configured to transmit a short message to a mobile station that is standing by in any of a plurality of types of radio access networks. In order to inquire the location information management server that manages the location information of each mobile station in response to the received short message delivery request signal addressed to the mobile station. Each of the short message distribution server and the radio access network apparatus according to the function configured to transmit the location information inquiry request signal and the received short message distribution request signal addressed to the mobile station. Session management managing types of mobile stations and radio access networks corresponding to sessions A function configured to transmit a radio access network type inquiry request signal for inquiring the type of the radio access network to be listened to by the mobile station to the server, and a location received from the location information management server The short message based on the location information of the mobile station included in the information inquiry response signal and the type of the radio access network to be awaited by the mobile station included in the radio access network type inquiry response signal received from the session management server And a function configured to distribute the content.

A ninth feature of the present invention is location information management used in a mobile communication system configured to transmit a short message to a mobile station that is waiting in any of a plurality of types of radio access networks. A server configured to manage location information of each mobile station, and a location information inquiry request signal for querying location information of the mobile station from a short message distribution server; In response to the information inquiry request signal, the mobile station corresponding to each session between the short message distribution server and the radio access network device and a session management server managing the type of the radio access network, receive the mobile station from standby. A function configured to obtain the type of the target radio access network and the previous A short message distribution server is configured to transmit a position information inquiry response signal including the position information of the mobile station and the type of the radio access network that is the standby target of the mobile station acquired from the session management server. The gist is to have a function.

A tenth feature of the present invention is a session management server used in a mobile communication system configured to transmit a short message to a mobile station that is waiting in any of a plurality of types of radio access networks. A function configured to manage the type of the mobile station and the radio access network corresponding to each session between the short message distribution server and the radio access network device, and the radio to be awaited by each mobile station And a function configured to notify a location information management server that manages location information of each mobile station when a change in the type of the access network is detected. And

As described above, according to the present invention, there are provided a mobile communication method, a mobile communication system, a short message distribution server, a location information management server, and a session management server that can shorten the delivery time of a short message addressed to a mobile station. can do.

FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention. FIG. 2 is a functional block diagram of each server SMS-GW, HSS, and PCRF in the mobile communication system according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating an example of information managed by the server HSS according to the first embodiment of the present invention. FIG. 4 is a diagram illustrating an example of information managed by the server PCRF according to the first embodiment of the present invention. FIG. 5 is a sequence diagram showing operations of the mobile communication system according to the first embodiment of the present invention. FIG. 6 is a diagram for explaining the operation of the mobile communication system according to the first embodiment of the present invention. FIG. 7 is a functional block diagram of each server SMS-GW, HSS, and PCRF in the mobile communication system according to the first modification of the present invention. FIG. 8 is a sequence diagram showing operations of the mobile communication system according to the first modification of the present invention. FIG. 9 is a diagram for explaining the operation of the mobile communication system according to the first modification of the present invention. FIG. 10 is a diagram for explaining the operation of the mobile communication system according to the first modification of the present invention. FIG. 11 is a sequence diagram showing operations of the mobile communication system according to the second modification of the present invention. FIG. 12 is a diagram for explaining the operation of the mobile communication system according to the first modification of the present invention. FIG. 13 is a diagram for explaining the operation of a conventional mobile communication system. FIG. 14 is a diagram for explaining the operation of a conventional mobile communication system.

(Configuration of mobile communication system according to the first embodiment of the present invention)
The configuration of the mobile communication system according to the first embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, in the mobile communication system according to the present embodiment, UTRAN (Universal Terrestrial Radio Access Network) / GERAN (GSM Edge Radio Access Network) and E-UTRAN-v (E-UTRAN-U) are used as multiple types of RATs. ), WLAN (Wireless LAN), and WiMAX (Worldwide Interoperability for Microwave Access, registered trademark) are connected to the core network.

The mobile communication system according to the present embodiment includes an SMS center, a server SMS-GW, a server HSS, and a server PCRF in a core network.

In addition, the mobile communication system according to the present embodiment includes a switching center SGSN and a node EPC as core network devices in the core network.

In addition, the mobile communication system according to the present embodiment includes a radio network controller RNC and a radio base station BTS that are UTRAN / GERAN radio access network devices, and a radio base station eNB that is a radio access network device for E-UTRAN. And an access point AP, which is a wireless access network device for WLAN, and a wireless base station BS, which is a wireless access network device for WiMAX.

The server SMS-GW includes a call control unit 11 and an IF (Interface) control unit 12, as shown in FIG.

The IF control unit 12 is configured to serve as an interface with the server HSS.

In response to the SMS message delivery request signal addressed to the mobile station UE # 1 received from the SMS center, the call control unit 11 sends the location information of the mobile station UE # 1 to the server HSS via the IF control unit 12. Is provided with a function configured to transmit a position information inquiry request signal.

Further, the call control unit 11 is based on the location information of the mobile station UE # 1 included in the location information inquiry response signal received from the server HSS via the IF control unit 12 and the RAT type to be awaited by the mobile station UE # 1. Thus, the SMS message distribution destination (for example, switching center SGSN or session) is determined, and the SMS message is distributed to the determined distribution destination.

For example, the call control unit 11 includes, in the received location information inquiry response signal, when the RAT type to be awaited by the mobile station UE # 1 included in the received location information inquiry response signal is “UTRAN / GERAN”. To the switching center SGSN specified by the location information “SGSN-ID” of the mobile station UE # 1 to be distributed via the C-plane path.

In addition, the call control unit 11 receives the reception when the RAT type to be awaited by the mobile station UE # 1 included in the received location information inquiry response signal is “E-UTRAN”, “WLAN”, or “WiMAX”. The SMS message is configured to be distributed on the U-plane path (session) specified by the location information “IMS (IP Multimedia Subsystem) -ID” of the mobile station UE # 1 included in the received location information inquiry response signal. Yes. In such a case, the call control unit 11 does not need to be aware of the radio access network device to which the SMS message is distributed.

Note that the call control unit 11 performs the IMS in “UTRAN / GERAN” even when the standby RAT type of the mobile station UE # 1 included in the received location information inquiry response signal is “UTRAN / GERAN”. U-plane path (session) identified by the location information “IMS-ID” of the mobile station UE # 1 included in the received location information inquiry response signal Above, it may be configured to deliver SMS messages.

Further, the server HSS includes a call control unit 21 and an IF control unit 22.

The IF control unit 22 is configured to serve as an interface with the server SMS-GW and the server PCRF.

The call control unit 21 is configured to manage subscriber information regarding each mobile station UE including location information of each mobile station UE.

For example, as shown in FIG. 3, the call control unit 21 is configured to manage “SGSN-ID” and “IMS-ID” as location information of each mobile station UE.

“SGSN-ID” is identification information of an exchange SGSN that manages a location registration area in “UTRAN / GERAN” that is a standby target of each mobile station UE.

The “IMS-ID” is an identification of a session (U-plane path) between the server SMS-GW set for each mobile station UE and the radio access network device (radio base station eNB / BS or access point AP). Information.

Note that the call control unit 21 stores “SGSN-ID” and “IMS-ID” as history until it is overwritten even when the RAT to be awaited by each mobile station UE is changed. You may be comprised so that it may keep.

Further, the call control unit 21 waits for the mobile station UE # 1 from the server PCRF via the IF control unit 22 in response to the location information inquiry request signal received from the server SMS-GW via the IF control unit 22. A function configured to acquire a target RAT type;

Further, the call control unit 21 sends the location information of the mobile station UE # 1 and the RAT type of the standby target of the mobile station UE # 1 acquired from the server PCRF to the server SMS-GW via the IF control unit 22. And a function configured to transmit a position information inquiry response signal including the information.

Further, the server PCRF includes a storage unit 31, a call control unit 32, and an IF control unit 33.

The IF control unit 33 is configured to serve as an interface with the server HSS.

As shown in FIG. 4, the storage unit 31 is configured to manage the mobile station UE and the RAT type corresponding to each session between the server SMS-GW and the radio access network device. The storage unit 31 may further be configured to manage QoS (Quality of Service), charging rules, and the like corresponding to each session.

In response to the RAT type inquiry request signal received from the server HSS via the IF control unit 33, the call control unit 32 sends a RAT to be awaited by each mobile station UE to the server HSS via the IF control unit 33. A RAT type inquiry response signal including the type is transmitted.

(Operation of the mobile communication system according to the first embodiment of the present invention)
With reference to FIG.5 and FIG.6, operation | movement of the mobile communication system which concerns on the 1st Embodiment of this invention is demonstrated.

In step S1001, in response to the SMS message delivery request signal addressed to the mobile station UE # 1 received from the SMS center, the IF control unit 12 of the server SMS-GW sends the mobile station to the IF control unit 22 of the server HSS. A position information inquiry request signal for inquiring about the position information of UE # 1 is transmitted.

In step S1002, the IF control unit 22 transmits the position information inquiry request signal to the call control unit 21, and the call control unit 21 determines in step S1003 that the RAT type to be awaited by the mobile station UE # 1 is If it is determined whether it is necessary, and if it is determined that it is necessary, in step S1004, the RAT type inquiry for querying the IF control unit 22 for the RAT type that is the standby target of the mobile station UE # 1 Send a request signal.

In step S1005, the IF control unit 22 transmits the RAT type inquiry request signal to the IF control unit 33 of the server PCRF, and in step S1006, the IF control unit 33 applies to the call control unit 32. A RAT type inquiry request signal is transmitted.

When detecting that the RAT type inquiry request signal is received in step S1007, the call control unit 32 transmits a subscriber information acquisition request signal to the storage unit 31 in step S1008, and in step S1009, the storage unit 31 receives a subscriber information response signal including the RAT type to be awaited by the mobile station UE # 1.

In step S1010, the call control unit 32 transmits, to the IF control unit 33, a RAT type inquiry response signal including a RAT type that is a standby target of the mobile station UE # 1, and in step S1011, the IF control unit 33 The RAT type inquiry response signal is transmitted to the IF control unit 22. In step S 1012, the IF control unit 22 transmits the RAT type inquiry response signal to the call control unit 21.

In step S1013, the call control unit 21 includes location information including the RAT type to be awaited by the mobile station UE # 1 included in the received RAT type inquiry response signal and the location information of the mobile station UE # 1 managed by itself. In step S1014, the IF control unit 22 transmits the position information inquiry response signal to the IF control unit 12, and in step S1015, the IF control unit 12 transmits the inquiry response signal to the IF control unit 22. The location information inquiry response signal is transmitted to the call control unit 11.

In step S1016, the call control unit 11 determines that the SMS addressed to the mobile station UE # 1 is based on the RAT type to be awaited by the mobile station UE # 1 and the location information of the mobile station UE # 1 included in the location information inquiry response signal. A message delivery destination (exchange SGSN or session) is determined, and the SMS message is delivered to the delivery destination via the IF control unit 12 in step S1017.

(Operations and effects of the mobile communication system according to the first embodiment of the present invention)
According to the mobile communication system according to the first embodiment of the present invention, the server SMS-GW receives the location information of the mobile station UE # 1 and the mobile station UE # 1 included in the location information inquiry response signal received from the server HSS. Since the SMS message delivery destination is determined based on the standby RAT type of the mobile station UE # 1, it is possible to avoid a situation in which the SMS message is transferred to other than the standby RAT of the mobile station UE # 1, The delivery delay of the SMS message can be reduced.

The features of the present embodiment described above may be expressed as follows.

The first feature of the present embodiment is that SMS is sent to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs (radio access networks: UTRAN / GERAN, E-UTRAN, WLAN, WIMAX). A mobile communication method for transmitting a message (short message), in which a server SMS-GW (short message distribution server) sends each mobile station UE in response to a distribution request signal of an SMS message addressed to the received mobile station UE # 1. Transmitting a position information inquiry request signal for inquiring the position information of the mobile station UE # 1 to a server HSS (position information management server) managing the position information of the mobile station UE # 1, and the position received by the server HSS In response to the information inquiry request signal, the server SMS-GW and the radio access network device (RNC / BTS, eNB, Radio from which the mobile station UE # 1 is awaiting, from the mobile station UE corresponding to each session with the mobile station UE and the server PCRF (session management server) managing the RAT type (type of radio access network) The step of acquiring the type of the access network, and the server HSS sends a location information inquiry response signal including the location information of the mobile station UE # 1 and the RAT type to be awaited by the mobile station UE # 1 to the server SMS-GW. The transmitting step, and the server SMS-GW distributes the SMS message based on the location information of the mobile station UE # 1 included in the received location information inquiry response signal and the RAT type to be awaited by the mobile station UE # 1 And having a process.

A second feature of the present embodiment is a mobile communication system configured to transmit an SMS message to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs. Manage server SMS-GW, server HSS managing location information of each mobile station UE, mobile station UE and RAT type corresponding to each session between server SMS-GW and radio access network device The server SMS-GW inquires the server HSS about the location information of the mobile station UE # 1 in response to the SMS message delivery request signal addressed to the mobile station UE # 1. And a mobile station UE # 1 included in the position information inquiry response signal received from the server HSS. The server HSS has a function configured to deliver the SMS message based on the location information and the RAT type to be listened to by the mobile station UE # 1, and the server HSS receives the location information inquiry request received from the server SMS-GW. In response to the signal, from the server PCRF, the function configured to acquire the RAT type to be listened to by the mobile station UE # 1, the location information of the mobile station UE # 1 and the server for the server SMS-GW And a function configured to transmit a position information inquiry response signal including a RAT type to be awaited by the mobile station UE # 1 obtained from the PCRF.

A third feature of the present embodiment is that a server used in a mobile communication system configured to transmit an SMS message to a mobile station UE # 1 that is waiting in one of a plurality of types of RATs In response to the received SMS message delivery request signal addressed to the mobile station UE # 1, the SMS-GW transmits the mobile station UE # 1 to the server HSS that manages the location information of each mobile station UE. A function configured to transmit a position information inquiry request signal for inquiring position information, the position information of the mobile station UE # 1 included in the position information inquiry response signal received from the server HSS, and the mobile station UE # 1 And a function configured to deliver an SMS message based on the RAT type of the standby target.

A fourth feature of the present embodiment is a server used in a mobile communication system configured to transmit an SMS message to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs. The HSS is configured to manage the location information of each mobile station UE, and receives a location information inquiry request signal for querying the location information of the mobile station UE # 1 from the server SMS-GW. In response to the location information inquiry request signal, the mobile station UE # 1 waits from the mobile station UE corresponding to each session between the server SMS-GW and the server PCRF managing the RAT type. For the function configured to acquire the target RAT type and the server SMS-GW, the location information of the mobile station UE # 1 and the server PCRF To and a function configured to transmit the location information inquiry response signal including the RAT classification of the standby target of the acquired mobile station UE # 1 and gist.

(Modification 1)
Hereinafter, the mobile communication system according to the first modification of the present invention will be described with reference to FIG. 7 to FIG. 10 while focusing on differences from the mobile communication system according to the first embodiment described above.

As shown in FIG. 7, the server HSS includes a storage unit 23 in addition to the call control unit 21 and the IF control unit 22.

The accumulation unit 23 is configured to manage the RAT type to be awaited by each mobile station UE based on the notification from the server PCRF.

In addition, the call control unit 32 of the server PCRF has a function configured to notify the server HSS of the change when detecting the change of the RAT type to be listened to by each mobile station UE. For example, the call control unit 32 may be configured to detect a change in the RAT type that is a standby target of each mobile station UE in response to a session change notification signal received from the node EPC.

The operation of the mobile communication system according to the first modification will be described with reference to FIGS.

In step S2001, when the IF control unit 33 of the server PCRF receives the session change notification signal for the mobile station UE # 1 from the node EPC, the IF control unit 33 of the server PCRF notifies the call control unit 32 of the RAT type to be awaited by the mobile station UE # 1. In step S2002, the call control unit 32 changes the RAT type to be awaited by the mobile station UE # 1 in the storage unit 31. In step S2003, the call control unit 32 changes the RAT registration signal for changing the RAT registration signal. In step S2004, the IF control unit 33 transmits the RAT notification signal to the IF control unit 22 of the server HSS.

In step 2005, the IF control unit 22 transmits the RAT notification signal to the call control unit 21. When the call control unit 21 detects that the RAT notification signal is received in step S2006, the IF control unit 22 detects in step S2007. Then, a subscriber information update signal for updating the RAT type of the mobile station UE # 1 that is a standby target is transmitted to the storage unit 23. In step S2008, the storage unit 23 receives the standby target of the mobile station UE # 1. Update the RAT type.

Thereafter, in step S2010, in response to the SMS message delivery request signal addressed to the mobile station UE # 1 received from the SMS center, the IF control unit 12 of the server SMS-GW A position information inquiry request signal for inquiring position information of the mobile station UE # 1 is transmitted.

In step S2011, the IF control unit 22 transmits the position information inquiry request signal to the call control unit 21, and the call control unit 21 determines in step S2011A that the RAT type to be awaited by the mobile station UE # 1 is In step S2012, a subscriber information acquisition request signal is transmitted to the storage unit 23, and in step S2013, from the storage unit 23, it is determined whether or not it is necessary. A subscriber information response signal including the RAT type to be awaited by the mobile station UE # 1 is received.

In step S2014, the call control unit 21 includes location information including the RAT type to be awaited by the mobile station UE # 1 and the location information of the mobile station UE # 1 managed by the mobile station UE # 1 included in the received subscriber information response signal. The inquiry response signal is transmitted to the IF control unit 22, and in step S2015, the IF control unit 22 transmits the position information inquiry response signal to the IF control unit 12. In step S2016, the IF control unit 12 The location information inquiry response signal is transmitted to the call control unit 11.

In step S2017, the call control unit 11 determines that the SMS addressed to the mobile station UE # 1 is based on the RAT type to be awaited by the mobile station UE # 1 and the location information of the mobile station UE # 1 included in the location information inquiry response signal. A message delivery destination (exchange SGSN or session) is determined, and an SMS message is delivered to the delivery destination via the IF control unit 12 in step S2018.

According to the mobile communication system according to the first modification, the server SMS-GW receives the position information of the mobile station UE # 1 included in the position information inquiry response signal received from the server HSS and the waiting target of the mobile station UE # 1. Since the delivery destination of the SMS message is determined based on the RAT type, it is possible to avoid a situation in which the SMS message is transferred to other than the RAT that is the standby target of the mobile station UE # 1, and the delivery of the SMS message can be avoided. The delay can be reduced.

Further, according to the mobile communication system according to the first modification example, when the server PCRF detects a change in the RAT type to be awaited by each mobile station UE, it notifies the server HSS to that effect. Therefore, the server HSS promptly responds to the position information inquiry request signal from the server SMS-GW with the position information inquiry response including the position information of the mobile station UE # 1 and the RAT type to be awaited by the mobile station UE # 1. A signal can be transmitted.

The characteristics of the modified example described above may be expressed as follows.

The first feature of this modified example is a mobile communication method for transmitting an SMS message to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs, which is wirelessly connected to the server SMS-GW. When the server PCRF that manages the mobile station UE and the RAT type corresponding to each session with the access network device detects a change in the RAT type that is the standby target of each mobile station UE, A step of notifying the server HSS that manages the location information and the RAT type to be awaited by each mobile station UE, and the server HSS, in response to the notification from the server PCRF, In response to the process of updating the RAT type to be awaited, and the server SMS-GW receives the SMS message delivery request signal addressed to the mobile station UE # 1. A process of transmitting a location information inquiry request signal for inquiring the location information of the mobile station UE # 1 to the HSS, and the server HSS sends a request to the server SMS-GW in response to the received location information inquiry request signal. , A step of transmitting a location information inquiry response signal including the location information of mobile station UE # 1 and the RAT type to be awaited by mobile station UE # 1, and server SMS-GW is included in the received location information inquiry response signal And a step of delivering an SMS message based on the location information of the mobile station UE # 1 and the RAT type to be awaited by the mobile station UE # 1.

The second feature of the present modification is a mobile communication system configured to transmit an SMS message to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs. Between the server SMS-GW, the server HSS that manages the location information of each mobile station UE and the RAT type to be listened to by each mobile station UE, and between the server SMS-GW and the radio access network device Mobile station UE corresponding to each session and server PCRF managing the RAT type, and server SMS-GW determines whether the server SMS-GW has received the SMS message delivery request signal addressed to mobile station UE # 1. A function configured to transmit a location information inquiry request signal for inquiring location information of the mobile station UE # 1 to the HSS, and a server HSS A function configured to deliver an SMS message based on the location information of the mobile station UE # 1 included in the received location information inquiry response signal and the RAT type to be awaited by the mobile station UE # 1. In response to the location information inquiry request signal received from the server SMS-GW, the server HSS sends the location information of the mobile station UE # 1 and the RAT type to be awaited by the mobile station UE # 1 to the server SMS-GW. The server PCRF has a function configured to transmit a location information inquiry response signal including the server HSS when the server PCRF detects a change in the standby RAT type of each mobile station UE. The gist of the present invention is to provide a function configured to notify the user.

A third feature of the present modification is a server used in a mobile communication system configured to transmit an SMS message to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs. A function of the PCRF, configured to manage the mobile station UE and the RAT type corresponding to each session between the server SMS-GW and the radio access network device, and the RAT to be listened to by each mobile station UE The gist of the invention is that it has a function configured to notify the server HSS that manages the location information of each mobile station UE when a change in type is detected.

(Modification 2)
Hereinafter, a mobile communication system according to Modification 2 of the present invention will be described with reference to FIG. 11 and FIG. 12, focusing on differences from the mobile communication system according to the first embodiment described above.

In the mobile communication system according to the second modification, the call control unit 11 of the server SMS-GW responds to the server HSS in response to the SMS message distribution request signal addressed to the mobile station UE # 1 received from the SMS center. It has a function configured to transmit a position information inquiry request signal for inquiring position information of the mobile station UE # 1.

Further, the call control unit 11 of the server SMS-GW makes a request for waiting for the mobile station UE # 1 to the server PCRF in response to the SMS message delivery request signal addressed to the mobile station UE # 1 received from the SMS center. It has a function configured to transmit a RAT type inquiry request signal for inquiring about the RAT type.

Furthermore, the call control unit 11 of the server SMS-GW includes the location information of the mobile station UE # 1 included in the location information inquiry response signal received from the server HSS and the mobile station included in the RAT type inquiry response signal received from the server PCRF. It has a function configured to deliver an SMS message based on the RAT type to be awaited by UE # 1.

The operation of the mobile communication system according to the second modification will be described with reference to FIG. 11 and FIG.

In step S3001, in response to the SMS message delivery request signal addressed to the mobile station UE # 1 received from the SMS center, the IF control unit 12 of the server SMS-GW sends the mobile station to the IF control unit 22 of the server HSS. A position information inquiry request signal for inquiring about the position information of UE # 1 is transmitted.

In step S3002, the IF control unit 22 transmits the position information inquiry request signal to the call control unit 21, and in step S3003, the call control unit 21 sends the mobile station UE # to the IF control unit 22. In step S3004, the IF control unit 22 transmits the position information inquiry request signal to the IF control unit 12. In step S3005, the IF control unit transmits the position information inquiry request signal including the position information inquiry signal. 12 transmits the position information inquiry request signal to the call control unit 11.

Further, in step S3010, in response to the SMS message delivery request signal addressed to the mobile station UE # 1 received from the SMS center, the IF control unit 12 of the server SMS-GW sends an IF control unit 33 of the server PCRF to the IF control unit 33. The mobile station UE # 1 transmits a RAT type inquiry request signal for inquiring about the RAT type to be awaited, and in step S3011, the IF control unit 33 transmits the RAT type inquiry request signal to the call control unit 32. To do.

When the call control unit 32 detects that the RAT type inquiry request signal has been received in step S3012, the call control unit 32 transmits a subscriber information acquisition request signal to the storage unit 31. In step S3013, the call control unit 32 moves from the storage unit 31. A subscriber information response signal including the RAT type to be awaited by the station UE # 1 is received.

In step S3014, the call control unit 32 transmits, to the IF control unit 33, a RAT type inquiry response signal including the RAT type that is a standby target of the mobile station UE # 1, and in step S3015, the IF control unit 33 The RAT type inquiry response signal is transmitted to the IF control unit 12. In step S 3016, the IF control unit 12 transmits the RAT type inquiry response signal to the call control unit 11.

In step S3021, the call control unit 11 includes the location information of the mobile station UE # 1 included in the location information inquiry request signal received from the server HSS and the mobile station UE # 1 included in the RAT type inquiry response signal received from the server PCRF. Based on the RAT type to be awaited, the SMS message delivery destination (exchange SGSN or session) addressed to the mobile station UE # 1 is determined, and in step S3022, the IF control unit 12 determines the delivery destination. To deliver the SMS message.

According to the mobile communication system according to the second modification, the server SMS-GW receives the location information of the mobile station UE # 1 included in the location information inquiry response signal received from the server HSS and the RAT type inquiry response received from the server PCRF. Since the SMS message delivery destination is determined based on the RAT type of the mobile station UE # 1 that is included in the signal, the SMS message is transferred to other than the standby RAT of the mobile station UE # 1. Can be avoided, and the delivery delay of the SMS message can be reduced.

The first feature of the present modification is a mobile communication method for transmitting an SMS message to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs. The server SMS-GW A location for inquiring the location information of the mobile station UE # 1 to the server HSS that manages the location information of each mobile station UE in response to the SMS message delivery request signal addressed to the mobile station UE # 1 The mobile station UE # 1 waits for the mobile station UE that transmits the information inquiry request signal and manages the mobile station UE and the RAT type corresponding to each session between the server SMS-GW and the radio access network device. A step of transmitting a RAT type inquiry request signal (radio access network type inquiry request signal) for inquiring a target RAT type, and a server HSS, Transmitting a location information inquiry response signal including location information of the mobile station UE # 1 to the server SMS-GW, and the server PCRF to the server SMS-GW Transmitting a RAT type inquiry response signal (radio access network type inquiry response signal) including the RAT type, and the location information of the mobile station UE # 1 included in the received location information inquiry response signal by the server SMS-GW; And a step of delivering an SMS message on the basis of the RAT type to be awaited by the mobile station UE # 1 included in the received RAT type inquiry response signal.

A second feature of the present modification is a mobile communication system configured to transmit an SMS message to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs. Manage server SMS-GW, server HSS managing location information of each mobile station UE, mobile station UE and RAT type corresponding to each session between server SMS-GW and radio access network device The SMS-GW server inquires of the server HSS about the location information of the mobile station UE # 1 in response to the received SMS message delivery request signal addressed to the mobile station UE # 1. According to the function configured to transmit the location information inquiry request signal of the mobile station UE1 and the distribution request signal of the SMS message addressed to the mobile station UE # 1 received. Included in the function configured to transmit a RAT type inquiry request signal for inquiring the RAT type of the mobile station UE # 1 that is a standby target to the PCRF and the location information inquiry response signal received from the server HSS A function configured to deliver the SMS message based on the location information of the mobile station UE # 1 and the RAT type of the standby target of the mobile station UE # 1 included in the RAT type inquiry response signal received from the server PCRF; The server HSS transmits a location information inquiry response signal including the location information of the mobile station UE # 1 to the server SMS-GW in response to the location information inquiry request signal received from the server SMS-GW. The server PCRF has the RAT type inquiry request signal received from the server SMS-GW. Depending on, the server SMS-GW, and summarized in that comprises a function configured to transmit a RAT type inquiry response signal including the RAT classification of the standby target of the mobile station UE # 1.

A third feature of the present modification is a server used in a mobile communication system configured to transmit an SMS message to the mobile station UE # 1 that is waiting in one of a plurality of types of RATs. In response to the received SMS message delivery request signal addressed to the mobile station UE # 1, the SMS-GW transmits the mobile station UE # 1 to the server HSS that manages the location information of each mobile station UE. The server SMS-GW and the radio access network according to the function configured to transmit a location information inquiry request signal for inquiring location information and the received SMS message delivery request signal addressed to the mobile station UE # 1 For the mobile station UE corresponding to each session with the apparatus and the server PCRF managing the RAT type, the RA to be listened to by the mobile station UE # 1 A function configured to transmit a RAT type inquiry request signal for inquiring the type, the position information of the mobile station UE # 1 included in the position information inquiry response signal received from the server HSS, and the RAT received from the server PCRF And a function configured to deliver an SMS message based on the RAT type to be awaited by the mobile station UE # 1 included in the type inquiry response signal.

The operations of the above-described mobile station UE, server SMS-GW, HSS, PCRF, core network device EPC, SGSN, radio access network device RNC / BTS, eNB, AP, BS may be implemented by hardware. May be implemented by a software module executed by a processor, or a combination of both.

Software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Removable ROM, and Hard Disk). Alternatively, it may be provided in an arbitrary format storage medium such as a CD-ROM.

The storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Further, such a storage medium and a processor may be provided in the ASIC. Such an ASIC may be provided in the mobile station UE, server SMS-GW, HSS, PCRF, core network device EPC, SGSN, radio access network device RNC / BTS, eNB, AP, BS. The storage medium and the processor are provided as discrete components in the mobile station UE, server SMS-GW, HSS, PCRF, core network device EPC, SGSN, radio access network device RNC / BTS, eNB, AP, BS. May be.

As described above, the present invention has been described in detail using the above-described embodiments. However, it is obvious for those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

Claims

A mobile communication method for transmitting a short message to a mobile station waiting on any of a plurality of types of radio access networks,
In response to the received short message delivery request signal addressed to the mobile station, the short message delivery server inquires of the location information management server that manages the location information of each mobile station about the location information of the mobile station. Transmitting a position information inquiry request signal for:
The location information management server manages the type of mobile station and radio access network corresponding to each session between the short message distribution server and the radio access network device according to the received location information inquiry request signal. Obtaining a type of a radio access network to be listened to by the mobile station from a session management server that is,
The location information management server transmits a location information inquiry response signal including location information of the mobile station and a type of radio access network to be listened to by the mobile station to the short message delivery server;
The short message distribution server distributes the short message based on the position information of the mobile station included in the received position information inquiry response signal and the type of the radio access network that is the standby target of the mobile station. A mobile communication method comprising:
A mobile communication method for transmitting a short message to a mobile station waiting on any of a plurality of types of radio access networks,
The session management server managing the type of mobile station and radio access network corresponding to each session between the short message distribution server and the radio access network device changes the type of radio access network to be listened to by each mobile station A position information management server that manages the position information of each mobile station and the type of radio access network to be listened to by each mobile station,
The location information management server updates the type of radio access network to be awaited by each mobile station in response to a notification from the session management server;
In response to the received short message delivery request signal addressed to the mobile station, the short message delivery server transmits a location information inquiry request signal for inquiring the location information of the mobile station to the location information management server. Process,
In response to the received location information inquiry request signal, the location information management server provides the short message distribution server with location information of the mobile station and a type of radio access network to be listened to by the mobile station. Transmitting an information inquiry response signal;
The short message distribution server distributes the short message based on the location information of the mobile station included in the received location information inquiry response signal and the type of the radio access network to be listened to by the mobile station. A mobile communication method comprising:
A mobile communication method for transmitting a short message to a mobile station waiting on any of a plurality of types of radio access networks,
In response to the received short message delivery request signal addressed to the mobile station, the short message delivery server inquires of the location information management server that manages the location information of each mobile station about the location information of the mobile station. For the session management server that manages the type of mobile station and radio access network corresponding to each session between the short message distribution server and the radio access network device, Transmitting a radio access network type inquiry request signal for inquiring the type of radio access network to be awaited by the mobile station;
The location information management server transmitting a location information inquiry response signal including location information of the mobile station to the short message delivery server;
The session management server, to the short message delivery server, transmitting a radio access network type inquiry response signal including a type of radio access network to be listened to by the mobile station;
The short message distribution server receives the location information of the mobile station included in the received location information inquiry response signal and the type of the radio access network to be awaited by the mobile station included in the received radio access network type inquiry response signal. And a step of delivering the short message based on the mobile communication method.
A mobile communication system configured to transmit a short message to a mobile station waiting in any of a plurality of types of radio access networks,
A short message delivery server;
A location information management server that manages location information of each mobile station;
A mobile station corresponding to each session between the short message distribution server and the radio access network device and a session management server managing the type of radio access network,
The short message delivery server is
In response to the received short message delivery request signal addressed to the mobile station, the location information management server is configured to transmit a location information inquiry request signal for inquiring the location information of the mobile station. Function and
Based on the location information of the mobile station included in the location information inquiry response signal received from the location information management server and the type of radio access network to be listened to by the mobile station, the short message is distributed. With the functions
The location information management server includes:
In response to the location information inquiry request signal received from the short message delivery server, from the session management server, a function configured to acquire the type of the radio access network that is the standby target of the mobile station;
The short message distribution server is configured to transmit a position information inquiry response signal including the position information of the mobile station and the type of the radio access network to be listened to by the mobile station acquired from the session management server. A mobile communication system.
A mobile communication system configured to transmit a short message to a mobile station waiting in any of a plurality of types of radio access networks,
A short message delivery server;
A location information management server that manages the location information of each mobile station and the type of radio access network to be listened to by each mobile station;
A mobile station corresponding to each session between the short message distribution server and the radio access network device and a session management server managing the type of radio access network,
The short message delivery server is
In response to the received short message delivery request signal addressed to the mobile station, the location information management server is configured to transmit a location information inquiry request signal for inquiring the location information of the mobile station. Function and
Based on the location information of the mobile station included in the location information inquiry response signal received from the location information management server and the type of the radio access network to be listened to by the mobile station, the short message is distributed. With the functions
The location information management server includes:
In response to the position information inquiry request signal received from the short message distribution server, the short message distribution server includes position information including the position information of the mobile station and the type of the radio access network to be awaited by the mobile station. Comprising a function configured to send an inquiry response signal;
The session management server
A mobile device comprising a function configured to notify the location information management server when a change in the type of radio access network to be listened to by each mobile station is detected. Communications system.
A mobile communication system configured to transmit a short message to a mobile station waiting in any of a plurality of types of radio access networks,
A short message delivery server;
A location information management server that manages location information of each mobile station;
A mobile station corresponding to each session between the short message distribution server and the radio access network device and a session management server managing the type of radio access network,
The short message delivery server is
In response to the received short message delivery request signal addressed to the mobile station, the location information management server is configured to transmit a location information inquiry request signal for inquiring the location information of the mobile station. Function and
In response to the received short message delivery request signal addressed to the mobile station, a radio access network type inquiry request signal is sent to the session management server to inquire about the type of radio access network to be listened to by the mobile station. With features that are configured to
Location information of the mobile station included in the location information inquiry response signal received from the location information management server and a radio access network to be awaited by the mobile station included in the radio access network type inquiry response signal received from the session management server And a function configured to deliver the short message based on the type of
The location information management server includes:
A function configured to transmit a location information inquiry response signal including location information of the mobile station to the short message delivery server in response to the location information inquiry request signal received from the short message delivery server. And
The session management server
In response to the radio access network type inquiry request signal received from the short message delivery server, a radio access network type inquiry response signal including a type of a radio access network that is a standby target of the mobile station is sent to the short message delivery server. A mobile communication system comprising a function configured to transmit
A short message distribution server used in a mobile communication system configured to transmit a short message to a mobile station waiting in any of a plurality of types of radio access networks,
In response to the received short message delivery request signal addressed to the mobile station, a location information inquiry request for inquiring the location information management server managing location information of each mobile station about the location information of the mobile station A function configured to transmit a signal;
Based on the location information of the mobile station included in the location information inquiry response signal received from the location information management server and the type of radio access network to be listened to by the mobile station, the short message is distributed. A short message delivery server.
A short message distribution server used in a mobile communication system configured to transmit a short message to a mobile station waiting in any of a plurality of types of radio access networks,
In response to the received short message delivery request signal addressed to the mobile station, a location information inquiry request for inquiring the location information management server managing location information of each mobile station about the location information of the mobile station A function configured to transmit a signal;
A session managing the type of mobile station and radio access network corresponding to each session between the short message delivery server and the radio access network device in response to the received short message delivery request signal addressed to the mobile station A function configured to transmit a radio access network type inquiry request signal for inquiring the type of the radio access network that is a standby target of the mobile station to the management server;
Location information of the mobile station included in the location information inquiry response signal received from the location information management server and a radio access network to be awaited by the mobile station included in the radio access network type inquiry response signal received from the session management server And a function configured to deliver the short message based on the type of the short message delivery server.
A location information management server used in a mobile communication system configured to transmit a short message to a mobile station waiting in any of a plurality of types of radio access networks,
A function configured to manage location information of each mobile station;
A location information inquiry request signal for inquiring about the location information of the mobile station is received from the short message delivery server, and each of the short message delivery server and the radio access network device according to the location information inquiry request signal is received. A function configured to acquire the type of the radio access network that is a standby target of the mobile station from the session management server that manages the type of the mobile station and radio access network corresponding to the session;
The short message distribution server is configured to transmit a position information inquiry response signal including the position information of the mobile station and the type of the radio access network to be listened to by the mobile station acquired from the session management server. And a location information management server.
A session management server used in a mobile communication system configured to transmit a short message to a mobile station waiting in any of a plurality of types of radio access networks,
A function configured to manage the type of mobile station and radio access network corresponding to each session between the short message delivery server and the radio access network device;
When a change in the type of radio access network to be listened to by each mobile station is detected, it is configured to notify the location information management server that manages the location information of each mobile station to that effect. And a session management server.