KR20070108896A - Communication system in passenger and freight transporting means - Google Patents

Abstract

Normally, a mobile terminal (UE) uses the Internet by accessing a CN through a base station (Node-B). Before getting on a train, the mobile terminal receives a get-off report and a get-on report from an RFID tag writer provided to the car of the train and reports to the base station (Node-B) that the user carrying the mobile terminal gets on the train. In the car of the train, the mobile terminal accesses a car-mounted AP by using a WLAN, Bluetooth, or the like, to allow the train-mounted AP to communicate with the base station (Node-B). With this, all the mobile machines in the car of the train can be handled by the car-mounted AP, thereby eliminating the need for the mobile machines to separately access the base station (Node-B).

Description

COMMUNICATION SYSTEM IN PASSENGER AND FREIGHT TRANSPORTING MEANS

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for handling radio waves in a means for transporting passengers and cargo such as buses, airplanes, ships, and trains (hereinafter referred to as vehicles), for example, a communication system in which a mobile communication device enters and performs communication. will be.

In the current location registration system, when a plurality of mobile devices are in a vehicle, such as a train or a bus, and they move together across a location registration area, all mobile devices that compete with the vehicle are individually registered with respect to the network. Is performed, a congestion state of the wireless environment occurs.

In order to avoid this, it is conceivable to group the position registrations of a plurality of mobile units into one position registration when the position registration area has been crossed. This mindset is collectively called NEMO (Network Moving).

In addition, mobile devices that not only function as communication terminals of the 3GPP protocol in mobile communication systems but also have different communication means such as wireless LAN (WLAN: Wireless LAN), Bluetooth, and UWB (Ultra Wide Band) have emerged. . Such a mobile device can reduce power consumption and communication cost by using a plurality of communication methods according to circumstances.

However, in order to realize NEMO, it is necessary to distinguish whether or not the mobile device is on or off the vehicle. However, since it is not discriminated in the conventional location registration system or the communication means in the conventional vehicle only supports 3GPP, consumption There is a problem that the power does not change with the outdoors.

Accordingly, in order to realize NEMO, a resource management method of a radio network controller (RNC: Radio Network Controller) for communication from an onboard AP (access point), security problems when transitioning to another communication system, and onboard AP other communications It is necessary to solve problems such as a method of checking the sanity between devices.

Patent Literature 1 discloses a system in which a mobile terminal in a train accesses an external server through a server installed in a train to receive a service.

Patent Document 1: Japanese Patent Application Laid-Open No. 2001-222603

An object of the present invention is to provide a communication system for performing wireless communication by grouping location registrations of a plurality of wireless communication means in a means for transporting passengers and cargoes that can be accessed and received by a wireless communication device.

The communication system of the present invention is a communication system of a wireless communication means in a means for transporting passengers and cargoes that can be entered and exited by a wireless communication device, and whether or not the wireless communication means is in a state of getting on the wireless communication means. The boarding / unloading notifying means for notifying whether the vehicle is in a state of being present, and the means for transporting passengers and cargoes with which the radio communication apparatus can enter and exit, and the radio communication means in means for transporting passengers and cargo with which the radio communication apparatus is accessible. Accesses the access point means in the transport means which functions as a dedicated access point and collectively accesses the communication system of the wireless communication means, and, when getting off, communicates by accessing the known means of the communication system; In the case of boarding, access is made to the access point means in the transportation means to perform communication. It is characterized in that it comprises wireless communication means.

According to the present invention, since the wireless communication devices used by the passengers in the vehicle, for example, do not separately access the base stations, most mobile devices are handed off / switched at the same time. It is not said to be big. That is, since the communication of the wireless communication device of the passengers in the vehicle is concentrated to the access point in the vehicle mounted on the vehicle, the external wireless network is accessed, so that hand off / switching and the like become one process. An increase in hardware resources and power consumption can be suppressed.

BRIEF DESCRIPTION OF THE DRAWINGS The figure explaining the structure of the communication system of embodiment of this invention.

2 is a functional block diagram of a mobile device according to an embodiment of the present invention.

3 is a diagram showing an example of information required when a mobile device transmits a boarding notice to a CN;

4 is a diagram showing the contents of an RRC CONNECTION REQUEST message and an newly added Information Element.

Fig. 5 is a diagram showing the contents of a newly created message to be transmitted when riding.

Fig. 6 is a block diagram showing the function of a CN for processing a new message.

7 is a diagram showing necessary information to be transmitted to a mobile device.

FIG. 8 is a diagram showing message contents of RRC CONNECTION SETUP and newly added information. FIG.

9 is a diagram showing an example of contents of a newly created message for establishing access to an onboard AP.

10 is a sequence of a switching request between the vehicle-mobile-CN.

Fig. 11 is a diagram showing a state of processing of a CN switching request.

Fig. 12 is a diagram showing information transmitted by a mobile unit to CN.

Fig. 13 is a diagram showing message contents of a GMM ROUTING AREA UPDATE REQUEST and newly added message contents.

Fig. 14 is a diagram showing the contents of a newly created message to be sent when getting off.

15 is a sequence of a switching request between the vehicle-mobile-CN.

Fig. 16 is a diagram showing an outline of the operation of the CN switch request processing.

17 is a functional block diagram of an onboard AP.

18 is a WLAN authentication sequence for mobile-vehicle AP.

Fig. 19 shows a ride notification sequence between the vehicle, the mobile unit, and the CN.

Fig. 20 shows the getting off notification sequence between the vehicle-mobile-CN.

21 is a sequence of WLAN authentication and WLAN-3GPP establishment of communication between the mobile unit and the onboard AP-RNC.

Fig. 22 is a sequence of packet transmission / reception of WLAN-3GPP when there is IP address translation between mobile station-to-vehicle AP-RNC.

23 is a sequence of voice transmission / reception of WLAN-3GPP between the mobile unit and the onboard AP-RNC.

Fig. 24 shows a communication establishment sequence of WLAN authentication and WLAN-3GPP between the mobile unit and the onboard AP-RNC.

Fig. 25 is a sequence of packet transmission / reception of WLAN-3GPP when there is no IP address translation between mobile station-to-vehicle AP-RNC.

Fig. 26 is a sequence of voice transmission / reception of WLAN-3GPP between mobile unit-vehicle AP-RNC.

Fig. 27 is a diagram showing a data format from RFID and a data format of mobile network ID.

28 is a diagram illustrating an example of an installation method of an RFID tag reader / writer (part 1).

29 is a diagram illustrating an example of a method for installing an RFID tag reader / writer (part 2).

30 is a diagram illustrating an example of an installation method of a REID tag reader / writer (part 3).

Fig. 31 is a diagram showing an example of the installation method of the RFID tag reader / writer (No. 4).

In this specification, the vehicle of a bus, the aircraft of an airplane, the hull of a ship, the vehicle of a tram, the vehicle of a vehicle, etc. are all called generically. In the following, the wireless network in the vehicle will be described as WLAN, but Bluetooth can be similarly applied, and other systems may be used. In addition, in this specification, although 3GPP is demonstrated as an example of a mobile communication system, it is not limited to the mobile communication system which conforms to 3GPP, and may be based on another standard standard (specifications).

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the structure of the communication system of embodiment of this invention.

The system according to the embodiment of the present invention includes a mobile unit UE and an area (for example, a vehicle such as a train) in which a plurality of mobile units move simultaneously, a wireless IC tag (RFID tag), a wireless IC tag reader / writer (RFID tag). Reader / writer), 3GPP access point (AP), access point of a wireless communication method other than 3GPP (for example, WLAN, Bluetooth, etc.), 3GPP base station (Node-B), 3GPP radio network controller (RNC), 3GPP core Network CN, a 3GPP home location register (HLR) installed in the core network. The core network is connected to the Internet so that the mobile device can access a server providing a service through an access point of the vehicle.

The mobile device has a communication function of 3GPP, a communication function of a wireless communication method (for example, WLAN, Bluetooth, etc.) other than 3GPP, and also has an RFID tag signal reception function.

The vehicle is equipped with a 3GPP access point, an access point of a wireless communication system (for example, WLAN, Bluetooth, etc.) other than 3GPP, and an RFID tag writer.

In addition, a 3GPP network composed of Node-B, RNC, CN and the like is used as a means for the mobile device to connect to the Internet.

The general flow of the operation of the system of the embodiment of the present invention is described below.

When the mobile device performing 3GPP communication rides on the vehicle, the boarding notification (including the mobile network ID) is obtained from the vehicle via the RFID tag and transmitted to the CN. The CN retrieves the vehicle from the mobile network ID and notifies the mobile to switch to the WLAN. The mobile receives the notification from the CN, switches to the WLAN, and communicates. In the vehicle, communication of 3GPP is not performed, but only WLAN. In addition, communication in a WLAN of a plurality of mobile devices is concentrated in a 3GPP access point. When arriving at the desired station, the mobile device gets out of the vehicle, gets a notification of getting off from the vehicle via the RFID tag, cuts the WLAN, and switches to normal 3GPP communication.

In the flow of the system operation, a function of determining that the mobile has boarded a vehicle, a function of transmitting a boarding notification to the CN, a method of determining the switching request to the WLAN based on the boarding notification, and a RNC to the mobile How to send a switch request, ID and password, how the mobile switches to the WLAN, how to determine when the mobile got off the vehicle, the mobile sends the getting off notification to the CN, and the CN based on the getting off notification Transmission method to the HLR, a function of establishing communication of a plurality of mobile devices with one RNC resource of one 3GPP access point, a protocol conversion function for establishing communication between a 3GPP access point and a WLAN access point in a vehicle, and 3GPP access The function of making an incoming call individually to the mobile device under the point management is set.

<Function to determine that the mobile is taken from the vehicle>

The following describes a function of discriminating, using an RFID tag, that a mobile vehicle rides from a vehicle. An outline of necessary methods and functions is described below.

1. Install two RFID tag writers in addition to the vehicle or vehicle, and send the boarding notice and the boarding notice.

2. The mobile device has a function of receiving using an RFID tag, a function of determining getting on and off, a function of creating data for transmission to a CN, and a function of transmitting using 3GPP.

The detail of a function is described below.

I. The following method is considered for the RFID tag reader / writer installation method for realizing the function of discriminating the instrument of getting on and off the vehicle using the RFID tag.

1. The method of attaching the RFID tag writer to two places in the vehicle besides the vehicle 1

Two out-of-vehicle RFID tag writers and two in-vehicle RFID tag writers operate simultaneously, and continue to send outboard notifications from out-of-vehicle RFID tag writers and ride notifications (including mobile network IDs) from in-vehicle RFID tag writers. do.

2. The method of attaching the RFID tag writer to two places in the vehicle other than the vehicle 2

The out-of-vehicle RFID tag writer continuously transmits the disembarkation notification to the mobile device when the door is opened, and the in-vehicle RFID tag writer transmits the boarding notification (including the mobile network ID) to the mobile for a predetermined time when the door is closed.

3. Method of attaching the RFID tag writer in the vehicle or outside the vehicle (for example, on a station home) 1

Both the RFID tag writer on the reverse home and the RFID tag writer on the vehicle operate at the same time, and the get off notice is received from the RFID tag writer on the reverse home and the boarding notice (including the mobile network ID) from the in-vehicle RFID tag writer. Send it.

4. Method of attaching RFID tag writer inside the vehicle and outside the vehicle (for example, on the station groove)

The RFID tag writer on the reverse groove continuously transmits the disembarkation notice to the mobile device when the door is opened, and the in-vehicle RFID tag writer transmits the boarding notice (including the mobile network ID) to the mobile device for a certain time when the door is closed.

II. The function of the mobile unit for discriminating, using the RFID tag, that the mobile unit rides on a vehicle is as follows.

2 is a functional block diagram of a mobile device according to an embodiment of the present invention.

The receiving unit 10 is a functional block that receives a signal from an RFID tag writer attached to a vehicle. The decoding unit 11 is a functional block for decoding the received signal. The receiving unit 10 and the decoding unit 11 constitute an RFID tag unit 12. The boarding / unloading signal processor 13 is a functional block that extracts whether the decoded signal is a boarding notification or a getting off notification. The boarding / unloading state holding unit 14 is a functional block that stores whether the mobile station is currently in the boarding state (including the mobile network ID) or the getting off state. The boarding / unloading determining unit 15 is a functional block that determines whether the mobile device has boarded or unloaded from the received notice of getting on or off and the current state.

The criterion is based on the following state switching judgment table.

The communication device information holding unit 16 is a functional block that records the individual identification of the mobile device and the information of the communication device supported by the mobile device. The function of recording the information of the communication device supported by the mobile device can also make the HLR have an equivalent function. If the HLR has this function, the function of recording the information of the communication device supported by the mobile device becomes unnecessary. The CN transmission data creation unit 17 adds the communication device information obtained from the communication device information holding unit 16 to the ride notification and the mobile network ID transmitted from the ride / unload determination unit 15 to communicate with the communication control unit 18. Function block to send to. The communication control unit 18 is a functional block capable of transmitting and receiving designated information using the 3GPP protocol. Ride / drop signal processing unit 13, ride / drop state holding unit 14, ride / drop determination unit 15, communication device information holding unit 16, CN transmission data creating unit 17, communication control unit 18 , 19).

The transceiver 20 is a functional block for transmitting and receiving signals of the 3GPP protocol. The 3GPP protocol processor 21 is a functional block that processes the 3GPP protocol to retrieve data from a received signal or to process data for a transmitted signal. The transceiver 20 and the 3GPP protocol processor 21 constitute a 3GPP unit. The transceiver 23 is a functional block that transmits and receives a signal of a WLAN protocol. The WLAN protocol processor 24 is a functional block that processes the WLAN protocol to retrieve data from a received signal or to process data for a transmitted signal. The transceiver 23 and the WLAN protocol processor 24 constitute a WLAN unit 25.

<Function of Transmitting Ride Notification to CN>

The following describes the function of the mobile device to transmit the boarding notice to the CN.

The outline of a function is described below.

1. The mobile device converts the data created by the CN transmission data creating unit into a message of 3GPP protocol and transmits it to the RNC.

2. The RNC receives the message sent from the mobile station, determines the content, and sends a request to the CN's HLR.

The detail of a function is described below.

I. The data format of the boarding notice created by the CN transmission data creating unit in the main body of the mobile unit is shown in FIG. 3 is a diagram illustrating an example of information required when the mobile device transmits a boarding notice to the CN.

1.Identifier for performing entity identification of mobile unit (Initial UE identity)

2. Information for identifying the ride on and off the vehicle of the mobile unit (UE State information)

3. Mobile Moving ID obtained from the vehicle

4. Wireless device information other than 3GPP that mobile device is equipped with

II. The following two methods are considered for converting the data created by the CN transmission data creation unit in the mobile unit main body into a message of the 3GPP protocol and transmitting it to the RNC.

1. How to add a new information element to RRC CONNECTION REQUEST, which is a message used to send a mobile device, and send it to the RNC.

An initial UE identity stored in the UE Information Elements of the existing RRC CONNECTION REQUEST message is added, and a NEM0 Information Element is newly added as an Information Element.

4 is a diagram illustrating the contents of an RRC CONNECTION REQUEST message and an newly added Information Element.

Initial UE identity of UE Information elements is used as an identifier for identifying an entity of the mobile. The NEMO information elements, which are newly added information elements, include UE state information, which is information for identifying the getting on and off of the mobile unit, a network moving ID which is a mobile network ID obtained from the vehicle, and a 3GPP other than the 3GPP on which the mobile unit is mounted. Wireless Devices information, which is information of a wireless communication method, is set.

2. How to newly define 3GPP message and send it to RNC

Newly, Element (Initial UE identity), which is an identifier for identifying an individual of the mobile unit, Element (UE State information), which is information for identifying the getting on and off of the mobile unit, and a mobile network ID obtained from the vehicle. A message (Network Moving Request) including an element (Network Moving ID) and an element of Element (Wireless Devices information) which is information of a wireless communication system other than 3GPP mounted on the mobile device are created.

5 is a diagram showing the contents of a newly created message.

Create a NETWORK MOVING REQUEST as a new message. In this message, as the NEMO information elements, Initial UE identity, UE state information, Network Moving ID, and Wireless Devices information are set.

III. The flow of operation of the function of receiving a message sent from the mobile station from the mobile station, determining the content, and then transmitting the message to the HLR on the CN side will be described below.

1. The RNC receives a message from the mobile station via the Node-B (RRC CONNECTION REQUEST with newly added element of II, or newly defined message).

2. The RNC refers to the message content of 1. and confirms that information indicating "ride" is included in the information (UE State information) for identifying the getting on and off of the mobile unit to the vehicle.

3. In the message of 1., the RNC identifies an identifier of the mobile unit (Initial UE identity), a mobile network ID (Network Moving ID) obtained from the vehicle, and a radio communication system other than 3GPP that the mobile device is equipped with. Information (Wireless Devices information) is transmitted to the HLR of the CN side.

<CN determines how to switch to WLAN based on boarding notice>

The following is an identifier for identifying an individual of a mobile device (CN) transmitted from the RNC, a mobile network ID (Network Moving ID), and information of a wireless communication method other than 3GPP that the mobile device is equipped with (Wireless). A method of making an inquiry request to the HLR from the device information and determining the switching to the WLAN will be described.

The outline of a function is described below.

1.Identifier (Initial UE identity) for carrying out individual identification of mobile unit, CN is transmitted from RNC, Mobile Network ID (Network Moving ID), and information of wireless communication system other than 3GPP equipped with mobile device (Wireless Devices information) to the HLR.

2. The HLR compares previously registered mobile network ID of the vehicle with two pieces of wireless communication information of the vehicle, and two pieces of mobile communication ID transmitted from the CN and wireless communication information of the mobile device, It is determined whether there is a common wireless communication scheme between the vehicle and the mobile and the vehicle.

3. When the HLR determines that there is a common wireless communication scheme between the vehicle and the mobile unit, the HLR transmits a connection switching request of the mobile unit to the common wireless system and the ID and password that can be authenticated by the vehicle AP registered in advance. In addition, the assigned authentication ID and authentication password are used, and an identifier (Initial UE identity) for identifying an individual of the mobile unit is added. Instead of the ID and password that can be authenticated by the vehicle AP registered in advance, the HLR may inquire the vehicle AP, obtain an ID and password that can be authenticated, and then transmit the data to the CN.

4. The CN transmits to the RNC a connection switching request of the mobile unit to the common radio system transmitted from the HLR, and an ID and password that can be authenticated by the vehicle AP.

Outline of function The function details of 2. are described below.

I. The HLR compares a previously registered mobile network ID of a vehicle with two pieces of wireless communication information of the vehicle, and two pieces of mobile network ID transmitted from the CN and information of the wireless communication type of the mobile device. Is as follows.

1. The HLR searches for a file having the same mobile network ID as the mobile network ID transmitted from the CN, from the database in which the vehicle's mobile network ID and the vehicle's wireless communication system information are stored.

2. The HLR compares the information of the wireless communication method of the vehicle of the searched file with the information of the wireless communication method of the mobile device, and searches for the same wireless method. When a plurality of searches are made, a radio system having a high priority of the radio system on the vehicle side (or mobile unit side) specified in advance is adopted. As another method of employing a radio method in the case of a plurality of searches, the HLR queries the vehicle AP for each access mobile number (or traffic) of the plurality of wireless communication methods, and the smallest access mobile number is selected (or the most traffic). Low) wireless schemes are also conceivable.

Outline of function The function details of 3. are described below.

I. The function of retrieving the ID and password that can be authenticated from the vehicle AP in which the HLR is registered in advance is described below.

1. The vehicle's movement from a database in which the HLR stores the vehicle's mobile network ID and the ID and password (a list in which distinction is made between in use and unused) for each of the wireless communication schemes of the vehicle's AP. The network ID and the wireless communication system employed are searched to obtain a list of IDs and passwords.

2. Select one unused one from list of ID and password of the relevant vehicle AP of 1. The assigned authentication ID and authentication password are used, and an identifier for initial identification of the mobile station is added for later retrieval.

The ID and password of 3. and the connection switching request by the wireless method are transmitted to the CN.

Fig. 6 is a block diagram of the function of the CN for processing a new message.

The CN unit 33 of the CN 39 receives the message from the RNC 30 in the message receiving unit 31 and sends the message to the RNC 30 from the message transmitting unit 32. The message received by the message receiving unit 31 is compared and determined by the comparison / determination unit 34 of the HLR unit 38. At this time, the information of the mobile network ID / communication method information database unit 35 is referred to. The comparison / decision unit 34 and the mobile network ID / communication method information database unit 35 perform the processing of outline 2. of the above functions. The authentication ID / authentication password control unit 36 and the authentication ID / authentication password database unit 37 perform the processing of Outline 3. of the above functions.

<RNC Sends Switch Request, ID and Bus Word to Mobile Device>

The following describes how the RNC transmits a switching request, an ID, and a password to the mobile device.

The outline of a function is described below.

The RNC converts the connection switching request to the radio system transmitted from the CN, the ID and password of the radio system into a message of the 3GPP protocol, and transmits the message to the mobile station.

The detail of a function is described below.

I. The connection switching request to the radio system transmitted from the CN by the RNC, and the data format of the ID and password of the radio system are shown in FIG.

7 is a diagram showing necessary information to be transmitted to a mobile device.

In FIG. 7, the following information is shown.

1.Identifier for performing entity identification of mobile unit (Initial UE identity)

2. Change Connection Request to the Wireless Method

3. ID for connection of wireless method

4. Wireless Password Authentication Password

II. It is conceivable that the RNC converts the connection switching request to the radio system transmitted from the CN, the ID and password of the radio system into a message of the 3GPP protocol, and transmits it to the mobile device.

1.How to add a new information element to the RRC CONNECTION SETUP, which is a message used to reply to the RRC CONNECTION REQUEST when the mobile is sent, and send it to the mobile.

The initial UE identity stored in the UE information elements of the existing RRC CONNECTION SETUP message and NEMO information elements are newly added as information elements.

Fig. 8 is a diagram showing message contents of RRC CONNECTION SETUP and newly added information.

Initial UE identity belonging to UE informationelements of RRC CONNECTION SETUP is used as an identifier for identifying an entity of a mobile station. In the NEMO informatione elements, which are newly added information elements, Change Connection Request, which is a connection switching request for the wireless method, a Connection ID, which is an authentication ID for the wireless method, and a connection password, which is an authentication password for the wireless method, are set.

2. Newly defined message of 3GPP and sent to mobile

9 is a diagram illustrating an example of the contents of a newly created message.

Newly, an element (Initial UE identity) of an identifier for identifying an individual of a mobile device, an element (Change Connection Request) of a connection switching request to the radio system, and an element (connection ID) of an authentication ID of the radio system. ) And a message (Network Moving Setup) including an element of an element (connection password) of the authentication password of the wireless system.

<Method of Mobile Switching to WLAN>

The details of how the mobile device switches to the WLAN are shown below.

1. The mobile unit receives an RRC CONNECTION SETUP with an element added or a newly created message (Network Moving Setup) from the 3GPP unit.

2. The communication control unit of the mobile station determines that it is a switching request to the WLAN, acquires the WLAN authentication ID and authentication password, and then terminates the communication in 3GPP.

3. The mobile device activates the WLAN unit and connects to the in-vehicle AP using the authentication ID and the authentication password.

4. After the authentication is completed, the mobile device continues to communicate with the in-vehicle AP and the WLAN.

Fig. 10 is a sequence of the switching request between the vehicle-mobile-CN.

The RRC CONNECTION REQUEST to which a new element is added is sent from the communication control unit of the mobile unit to the communication control unit of the RNC. The RNC transmits only Network Moving ID and Wireless Device information to the CN. In the CN, these are accepted by the CN unit and transmitted to the HLR unit. The HLR unit determines the switching from the database of the Network Moving ID and Wireless Device information to the WLAN, obtains the WLAN ID and authentication password from the database, and sends the Change Connection Request, Connection ID and Connection Password through the CN unit. Send to RNC The RNC adds an Initial UE identity to this information and sends an RRC CONNECTION SETUP message to the mobile. The mobile device uses the Connection ID and the Connection Password to access the in-vehicle AP, receive WLAN authentication, and enable WLAN communication with the in-vehicle AP and the mobile.

Fig. 11 is a diagram showing a state of processing of a CN switching request.

When the RRC CONNECTION REQUEST is sent from the RNC 30, the message receiver 31 of the CN unit 33 receives, and transmits only the Network Moving ID and Wireless device information to the comparison / determination unit 34. The comparison / decision unit 34 searches for the mobile network ID / communication method information database unit 35 and makes a switching decision from the result. The result of the switching judgment is sent to the authentication ID / authentication password control unit 36, and the acquisition ID and authentication password acquisition request is made to the authentication ID / authentication password database unit 37. The authentication ID / authentication password control unit 36 sends a change connection request, a connection ID, and a connection password to the message transmitter 32 from the acquisition result. The message transmitter 32 sends these information to the RNC 30 as RRC CONNECTION SETUP.

<Function that discriminates when the mover gets out of the vehicle>

The following describes a function of discriminating, using an RFID tag, that a mobile device has alighted from a vehicle.

The outline of a function is described below.

1. Install two RFID tag writers in addition to the vehicle or vehicle, and send the boarding notice and the boarding notice.

2. The mobile device has a function of receiving using an RFID tag, a function of determining getting on and off, a function of creating data for transmission to a CN, and a function of transmitting using 3GPP.

The detail of a function is described below.

I. The RFID tag reader / writer installation method for realizing the function of discriminating the instrument of getting on and off the vehicle using the RFID tag is the same as the method described in "Function of Determining that the Mover Rides from the Vehicle". Branches are thought of.

II. The function of the mobile unit for determining that the mobile unit rides on the vehicle using the RFID tag is the same as the method described in "Function for determining that the mobile unit rides from the vehicle".

<Function of Sending Notification of Discharge to CN>

The following describes the function of the mobile device to transmit the disembarkation notification to the CN.

The outline of a function is described below.

1. The mobile device converts the data created by the CN transmission data creating unit into a message of 3GPP protocol and transmits it to the RNC.

2. The RNC receives the message sent from the mobile station, determines the content, and sends it to the HLR on the CN side.

The detail of a function is described below.

I. The data format of the getting off notification created by the CN transmission data creating unit in the main body of the mobile unit is shown in FIG.

12 is a diagram illustrating information transmitted by the mobile unit to the CN.

In Fig. 12, the following information is shown.

1.Identifier for performing entity identification of mobile unit (Initial UE identity)

2. Information for identifying the ride on and off the vehicle of the mobile unit (UE State information)

3. Mobile Moving ID obtained from the vehicle

II. The following two methods are considered for converting the data created by the CN transmission data creation unit in the mobile unit main body into a message of the 3GPP protocol and transmitting it to the RNC.

1. Add a new information element to GMM ROUTING AREA UPDATE, which is a message used for attaching the mobile unit, and send it to the RNC.

Add an NEMO Information Element as an Information Element to an existing GMM ROUTING AREA UPDATE REQUEST message.

Fig. 13 is a diagram showing newly added message contents.

Add NEMO information elements to GMM ROUTING AREA UPDATE REQUEST. The NEMO information elements include Initial UE identity, UE State information, and Network Moving ID.

2. Newly define a message of 3GPP and send it to RNC.

Fig. 14 is a diagram showing the contents of a newly created message.

Newly, the element (Initial UE identity) of the identifier for identifying the individual of the mobile unit, the element (UE state information) of the information for identifying the getting on and off of the mobile unit, and the mobile network ID obtained from the vehicle Create a message (Network Moving Reject) containing the element of Element (Network Moving ID).

III. The flow of the function that the RNC receives a message sent from the mobile station, determines the content, and then transmits the message to the HLR on the CN side will be described below.

1. The RNC receives a message from the mobile station via Node-B (GMM AREA UPDATE REQUEST with newly added element of II, or newly defined message).

2. The RNC refers to the contents of the message 1, and confirms that information indicating "get off" is present in the information (UE State information) for identifying the getting on and off of the mobile unit to the vehicle.

3. The RNC transmits, to the HLR on the CN side, an identifier (Initial UE identity) for identifying an individual of the mobile unit and a Network Moving ID obtained from the vehicle in the message of 1.

<How CN sends to HLR based on getting off notice>

The following describes a method of transmitting an identifier (Intial UE identity) and a Mobile Moving ID (Network Moving ID) to the HLR from which the CN transmits the entity identification of the mobile unit, transmitted from the RNC.

The outline of a function is described below.

1. The CN transmits to the HLR an identifier (Intial UE identity) and a Mobile Moving ID (Network Moving ID) for performing entity identification of the mobile, sent from the RNC.

2. The HLR uses two types of identifiers (Initial UE identity), mobile network ID (Network Moving ID) for identification of the mobile unit transmitted from the CN, and performs identification of the mobile unit registered at the time of boarding. From the identifier (Initial UE identity) and the information of the mobile network ID (Network Moving ID), the authentication ID and authentication password used by the mobile device are retrieved.

3. The HLR changes the authentication ID and authentication password which were in use to unused, and sends a completion notice to the CN.

4. The CN sends a get off completion notification to the RNC, sent from the HLR.

5. The RNC receives the dismissal completion notice and terminates the series of processing.

15 is a sequence of the switching request between the vehicle, the mobile, and the CN.

The mobile device sends a GMM ROUTING AREA UPDATE REQUEST to the RNC when communication by the WLAN with the in-vehicle AP is terminated. The RNC receives a message from the mobile unit (GMM AREA UPDATE REQUEST with newly added element of II, or newly defined message). With reference to the message contents sent by the RNC, it is confirmed that there is content indicating "get off" in the information (UE State information) for identifying the getting on and off of the mobile unit to the vehicle. The RNC transmits, to the HLR on the CN side, an identifier (Initial UE identity) for identifying an individual of the mobile unit and a Network Moving ID obtained from the vehicle in the message sent from the RNC. The HLR unit retrieves the authentication ID and authentication password used by the mobile device. Change the authentication ID and authentication password to unused. The dismissal completion notification is sent to the RNC via the CN unit from the HLR unit. After the mobile station performs other necessary processing in 3GPP, it starts communication in 3GPP.

Fig. 16 is a diagram showing an outline of the operation of the CN switch request processing.

The message receiving unit 31, which has received the GMM ROUTING AREA UPDATE REQUEST from the RNC 30, transmits the natural UE identity and the Network Moving ID to the authentication ID / authentication password acquisition unit 36. The authentication ID / authentication password acquiring unit 36 notifies the authentication ID / authentication password database unit 37 of the request for changing the authentication ID and the authentication password that are being used to the unused one. When the authentication ID / authentication password acquisition unit 36 receives the result of the change, the discharging completion notification is sent to the message transmission unit 32. From the message transmitter 32, the getting off notification is sent to the RNC 30. FIG.

<Communication method between onboard AP and mobile device>

The communication method between the onboard AP and the mobile device will be described below.

17 is a functional block diagram of the onboard AP.

The outline of a function is described below.

1. The WLAN communication control unit 45 in the onboard AP receives the authentication request from the mobile device, and transmits the authentication ID and the authentication password transmitted from the mobile device to the user authentication unit 46 for authentication.

2. If authentication of the mobile unit succeeds, the control unit 47 in the onboard AP is notified, and the control unit 47 requests the 3GPP communication control unit 48 to secure communication resources for the mobile unit.

3. When the 3GPP communication control unit 48 can secure the resource, the control unit 47 associates the IP address assigned to the mobile station with the channel number of the DTCH of the 3GPP.

4. The 3GPP communication control unit 48 adds a channel number to the header for the data packet from the DTCH, transmits the packet data to the IP address conversion unit 49, and encodes / decodes the voice data. To 50.

5. In the encode / decode unit 50, the data portion of AMR, which is 3GPP voice data, is converted into VoIP data and transmitted to the IP address conversion unit 49.

6. The IP address conversion unit 49 extracts the channel number from the data transmitted from the 3GPP communication control unit 48, converts it into a corresponding IP address, and transmits it to the WLAN communication control unit 45.

7. When there is a communication termination request from the mobile station (or when communication cannot be established due to the radio wave condition from the mobile station), the WLAN communication control unit 45 in the onboard AP terminates communication with the mobile station.

8. The control unit 47 of the onboard AP requests the 3GPP communication control unit 48 to open communication resources for the mobile unit.

9. The controller 47 erases the correspondence between the IP address assigned to the mobile device and the channel number of the DTCH of 3GPP.

4., 5., and 6. show the flow of data from 3GPP to WLAN, but the same process is performed for the flow of data on the contrary.

In addition, since a transceiver, a 3GPP protocol processor, and a WLAN protocol processor are the same as those in FIG. 2, description thereof is omitted.

The encoding / decoding unit 50 converts voice data between AMR and VoIP. However, in AMR, which is a voice protocol of 3GPP, the delay time of voice data is limited, whereas in VoIP of WLAN, Since the delay is arbitrarily generated, it is impossible to ride in each other, so that encoding and decoding are performed again.

The detail of a function is described below.

I. An example of the authentication method of authentication ID and authentication password by the user authentication part in an onboard AP is as follows.

The following procedure describes an EAP authentication method using a general WLAN and a RADIUS server (EAP-TTLS).

18 is a WLAN authentication sequence in a mobile-vehicle AP.

1. The WLAN communication control unit in the onboard AP receives an Initial Request from the mobile station (Initial Request).

2. The WLAN communication control unit in the onboard AP requests the ID for authentication to the mobile device (EAPoL ID Request).

3. The WLAN communication control unit in the onboard AP receives the ID for authentication transmitted from the mobile station (EAPoL ID Response).

4. The WLAN communication control unit in the onboard AP transmits the authentication ID transmitted from the mobile unit to the user authentication unit in the onboard AP (Access Request).

5. The mobile terminal communicates with the user authentication unit in the onboard AP to determine an authentication method (Negotiate Method (TTLS)).

6. The user authentication unit in the onboard AP sends an authentication server certificate to the mobile device (Authenticate Server Cetificate).

7. The mobile sends an authentication password to the user authentication in the onboard AP (Authenticate Client Username Password).

8. The user authentication unit in the onboard AP issues a secret encryption key (WEP Key) to the mobile device (WEP Key Generation).

In the above authentication procedure, the method for transmitting the authentication ID and the authentication password transmitted by the mobile device uses the one obtained by "method of transmitting the switching request, ID and password to the mobile device". The authentication ID and the authentication password are transmitted from the RNC to the mobile device in a state of being blinded, and it is difficult for a third party to waterproof.

II. The method for requesting the 3GPP communication control unit to secure communication resources for the mobile unit is shown below.

1. The 3GPP communication control unit in the onboard AP makes a DTCH addition request to the RNC.

2. Record the channel number of the added DTCH.

III. The control unit shows a method of associating the IP address assigned to the mobile station with the channel number of the DTCH of 3GPP.

1. The control unit in the onboard AP associates the IP address assigned to the mobile station by the WLAN communication control unit with the channel number of the DTCH added by II.

Ⅳ. The 3GPP communication control unit shows a method of adding a channel number to a header for a data packet from the DTCH.

1. In the case of packet communication, the channel number of the DTCH transmitted and received is added to the header portion of the IP packet.

2. In the case of voice data, the channel number of the DTCH transmitted and received is added to the header portion of the voice packet.

V. The method of converting the data portion of AMR, which is the 3GPP voice data, to the data packet of VoIP is described below.

1. Obtain data compressed by the AMR codec from the 3GPP communication control unit.

2. The AMR decoder in the encode / decode unit restores the data compressed by the AMR codec.

3. The recovered data is transmitted to the VoIP encoder of the encode / decode unit and compressed into a data packet for VoIP.

4. The compressed data packet is sent to the IP address conversion unit and converted into the IP address of the mobile station.

Ⅵ. The encoding / decoding section shows a method of converting a data packet of VoIP into an AMR data section which is 3GPP voice data.

1. Obtain the data compressed by the data bucket of VoIP from the IP address conversion unit.

2. The VoIP decoder in the encode / decode unit restores the data compressed by the VoIP codec.

3. The reconstructed data is transmitted to the AMR encoder of the encode / decode unit and compressed into data for AMR.

4. The compressed data is transmitted to the 3GPP communication control unit and converted into 3GPP protocol.

I. Process for realizing the function of installing the RFID tag writer (1) and the function of discriminating the vehicle riding instrument by using the RFID tag when a mobile device existing outside the vehicle rides on the vehicle using the function of the mobile unit Indicates. In addition, hereinafter, an operation in which the mover moves from outside the vehicle to the inside of the vehicle is shown.

19 is a boarding notification sequence between the vehicle-mobile-CN.

1. The receiving unit in the RFID tag of the mobile unit receives the disembarkation notification signal transmitted from the RFID tag writer out of the vehicle.

2. The decoder in the RFID tag of the mobile device decodes the received signal.

3. The ride / stop signal processor in the main body of the mobile unit analyzes the decoded signal and determines that the received signal is a get off notification.

4. It is determined that the boarding / unloading determination unit in the main body of the mobile unit applies the unloading notice from the boarding / unloading signal processing unit and the state (unloading) from the boarding / unloading state maintaining unit to the state switching decision table to discard the unloading notice. do.

5. The receiving unit in the RFID tag of the mobile unit receives a ride notification (including mobile network ID) signal sent from the in-vehicle RFID tag writer.

6. The decoder in the RFID tag of the mobile device decodes the received signal.

7. The ride / unload signal processor in the main body of the mobile unit analyzes the decoded signal and determines that the received signal is a ride notice.

8. The boarding / unloading determining unit in the main body of the mobile unit applies the boarding notice from the boarding / unloading signal processing unit and the state (getting off) from the boarding / unloading state maintaining unit to the state switching judgment table, and the boarding notice is sent to the CN transmission data. It determines with sending to a creation part, and transmits.

9. The CN transmission data generating unit in the mobile unit's main body unit adds the communication device information obtained from the communication device information holding unit to the boarding notification and the mobile network ID received from the boarding / unloading determination unit and transmits it to the communication control unit in the main body of the mobile unit. do.

1O. The communication control unit in the main unit of the mobile unit transmits the data transmitted from the CN transmission data creation unit to the 3GPP protocol processing unit in the 3GPP unit of the mobile unit.

11. The 3GPP protocol processing unit in the 3GPP unit of the mobile unit transmits the data transmitted from the communication control unit in the main body unit of the mobile unit to the CN via the transmission / reception unit in the 3GPP unit of the mobile unit.

II. The installation method 1 of the RFID tag writer and a process for realizing the function of discriminating the instrument of vehicle riding using the RFID tag when a mobile device existing outside the vehicle rides on the vehicle using the function of the mobile unit are shown. Here, the operation that the mover moves out of the vehicle in the vehicle is shown.

Fig. 20 shows the getting-off notification sequence between the vehicle-mobile-CN.

1. The receiving unit in the RFID tag of the mobile unit receives a ride notification (including mobile network ID) signal transmitted from an out-of-vehicle RFID tag writer.

2. The decoder in the RFID tag of the mobile device decodes the received signal.

3. The ride / unload signal processor in the main body of the mobile unit analyzes the decoded signal and determines that the received signal is a ride notification.

4. It is determined that the boarding / unloading determination unit in the main body of the mobile unit applies the boarding notice from the boarding / unloading signal processing unit and the state (boarding) from the boarding / unloading state maintaining unit to the state switching decision table to discard the boarding notice. do.

5. The receiving unit in the RFID tag of the mobile unit receives the disembarkation notification signal transmitted from the RFID tag writer in the vehicle.

6. The decoder in the RFID tag of the mobile device decodes the received signal.

7. The boarding / unloading signal processor in the main body of the mobile unit analyzes the decoded signal and determines that the received signal is a getting off notification.

8. The boarding / unloading judging unit in the main body of the mobile unit applies the notice of getting off from the boarding / unloading signal processing unit and the state from the boarding / unloading state holding unit (including the riding (mobile network ID)) to the state switching judgment table. It is determined that the disembarkation notification is sent to the CN transmission data creation unit and transmitted.

9. The CN transmission data creation unit in the mobile unit's main body unit adds the communication device information obtained from the communication device information holding unit to the communication control unit in the mobile unit's main body unit to the getting off notification and mobile network ID received from the ride / unload determination unit. do.

1O. The communication control unit in the main unit of the mobile unit transmits the data transmitted from the CN transmission data creation unit to the 3GPP protocol processing unit in the 3GPP unit of the mobile unit.

11. The 3GPP protocol processing unit in the 3GPP unit of the mobile unit transmits the data transmitted from the communication control unit in the main body unit of the mobile unit to the CN via the transmission / reception unit in the 3GPP unit of the mobile unit.

III. In the following, the IP address of the mobile station and the IP address assigned to the DTCH are different, and the sequence of WLAN authentication and WLAN-3GPP communication establishment between the mobile unit and the on-board AP-RNC when the conversion unit is necessary is described below. Indicates.

21 is a sequence of WLAN authentication and WLAN-3GPP establishment of communication between the mobile unit and the onboard AP-RNC.

1. The WLAN communication control unit in the onboard AP receives an Initial Request from the mobile station (Initial Request).

2. The WLAN communication control unit in the onboard AP requests the ID for authentication to the mobile device (EAPoL ID Request).

3. The WLAN communication control unit in the onboard AP receives the ID for authentication transmitted from the mobile station (EAPoL ID Response).

4. The WLAN communication control unit in the onboard AP transmits the authentication ID transmitted from the mobile unit to the user authentication unit in the onboard AP (Access Request).

5. The mobile terminal communicates with the user authentication unit in the onboard AP to determine an authentication method (Negotiate Method (TTLS)).

6. The user authentication unit in the onboard AP sends an authentication server certificate to the mobile device (Authenticate Server Cetificate).

7. The mobile sends an authentication password to the user authentication in the onboard AP (Authenticate Client Username Password).

8. The user authentication unit in the onboard AP issues a secret encryption key (WEP Key) to the mobile device (WEP Key Generation).

9. The user authentication unit notifies the control unit of the authentication completion.

1O. The control unit sends a resource addition request to the 3GPP communication control unit. The 3GPP communication control unit transmits a DTCH addition request to the RNC.

11. The RNC adds a DTCH according to the DTCH addition request and sends the result to the 3GPP communication control unit.

12. The 3GPP communication control unit sends the IP address assigned to the channnel number of the DTCH to the control unit.

13. The control unit records the IP address assigned to the channel number of the DTCH and requests the WLAN communication control unit for the IP address assigned to the mobile unit.

14. The WLAN communication control unit sends the mobile station's IP address to the control unit.

15. The control unit records the IP address assigned to the mobile device, associates the IP address assigned to the mobile device with the IP address of the channel, and sends a correspondence table to the IP address conversion unit.

Ⅳ. The IP address of the mobile station and the IP address assigned to the DTCH are different from each other, and show the sequence of packet transmission / reception of WLAN-3GPP between the mobile unit and the in-vehicle AP-RNC when the conversion unit is necessary.

22 is a sequence of packet transmission / reception of WLAN-3GPP between the mobile unit and the onboard AP-RNC.

1. The WLAN unit of the mobile device transmits an IP packet using a WLAN protocol processing unit. The transmitted IP packet releases the WLAN protocol processing part and WLAN communication control part of onboard AP part, and is notified to the IP address conversion part of a main body part.

2. The IP address conversion unit converts the IP address of the IP packet based on the mobile-channel conversion table, and transmits the IP packet to the 3GPP protocol processing unit. The 3GPP protocol processing unit transmits the IP packet to the channel of the corresponding DTCH with respect to the received IP packet. This IP packet is received at the RNC.

3. When the IP packet is transmitted from the RNC to the mobile device, the IP packet is sent from the RNC to the 3GPP protocol processing unit of the onboard AP, and the IP package transmitted to the DTCH channel is transmitted to the IP address conversion unit.

4. The IP address conversion section converts the IP address based on the mobile-channel conversion table. The IP packet obtained by converting the IP address is then transmitted to the mobile station.

V. Below, the IP address of the mobile station and the IP address assigned to the DTCH are different, and show the sequence of voice transmission / reception of WLAN-3GPP between the mobile unit-mounted AP-RNC when the conversion unit is necessary. .

23 is a sequence of voice transmission / reception of WLAN-3GPP between the mobile unit and the onboard AP-RNC.

1. When the VoIP packet is transmitted from the WLAN processor processing unit of the mobile station, it is received by the IP address conversion unit of the onboard AP unit.

2. The IP address conversion unit converts the VoIP address based on the mobile-channel conversion table.

3. The IP packet whose IP address is converted is sent to the encoding / decoding unit, decodes the voice data of VoIP, and encodes the data into AMR.

4. The generated AMR data is sent to the 3GPP protocol processing unit, and the 3GPP protocol processing unit sends this AMR data to the RNC using a channel of the corresponding DTCH.

5. When sending voice data from the RNC to the mobile device, the AMR data is sent to the 3GPP protocol processing unit, and the AMR data transmitted to the channel of the DTCH is sent to the encode / decode unit.

6. The encode / decode unit decodes the AMR data, encodes it into voice data of the VoIP, and sends it to the IP address conversion unit.

7. The IP address conversion section converts the VoIP address based on the mobile-channel conversion table, and sends this VoIP packet to the mobile.

Ⅵ. The following describes a sequence of WLAN authentication and WLAN-3GPP communication establishment between the mobile unit and the in-vehicle AP-RNC when the IP address of the mobile station and the IP address assigned to the DTCH are the same, and the conversion unit is unnecessary. .

Fig. 24 is a communication establishment sequence of WLAN authentication and WLAN-3GPP between the mobile unit and the onboard AP-RNC.

1. The WLAN communication control unit in the onboard AP receives an Initial Request from the mobile station (Initial Request).

2. The WLAN communication control unit in the onboard AP requests the ID for authentication to the mobile device (EAPoL ID Request).

3. The WLAN communication control unit in the onboard AP receives the ID for authentication transmitted from the mobile station (EAPoL ID Response).

4. The WLAN communication control unit in the onboard AP transmits the authentication ID transmitted from the mobile unit to the user authentication unit in the onboard AP (Access Request).

5. The mobile terminal communicates with the user authentication unit in the onboard AP to determine an authentication method (Negotiate Method (TTLS)).

6. The user authentication unit in the onboard AP sends an authentication server certificate to the mobile device (Authenticate Server Certificate).

7. The mobile sends an authentication password to the user authentication in the onboard AP (Authenticate Client Username Password).

8. The user authentication unit in the onboard AP issues a secret encryption key (WEP Key) to the mobile device (WEP Key Generation).

9. The user authentication unit notifies the control unit of the authentication completion.

1O. The control unit sends a resource addition request to the 3GPP communication control unit. The 3GPP communication control unit transmits a DTCH addition request to the RNC.

11. The RNC adds a DTCH according to the DTCH addition request and sends the result to the 3GPP communication control unit.

12. The 3GPP communication control unit sends the IP address assigned to the channnel number of the DTCH to the control unit.

13. The control unit requests the communication control unit to rewrite the IP address of the mobile device to the IP address of the DTCH.

14. The WLAN communication control unit rewrites the mobile station's IP address into the DTCH's IP address and sends a rewrite request for the IP address to the mobile station.

Iii. In the following, the IP address of the mobile station and the IP address assigned to the DTCH are the same, and the sequence of packet transmission / reception of the WLAN-3GPP between the mobile unit-on-vehicle AP-RNC when the conversion unit is unnecessary is shown.

25 is a sequence of packet transmission / reception of WLAN-3GPP between the mobile unit and the onboard AP-RNC.

1. When the IP packet is transmitted from the mobile station, the 3GPP processing unit of the onboard AP receives and transmits the IP packet to the RNC using a channel of the corresponding DTCH.

2. When the IP packet is transmitted from the RNC, the 3GPP protocol processor of the onboard AP receives and transmits the received IP packet to the mobile station using the channel of the DTCH.

Iii. The following describes a sequence of voice transmission / reception of WLAN-3GPP between the mobile station and the vehicle AP-RNC when the IP address of the mobile unit and the IP address assigned to the DTCH are the same, when the conversion unit is unnecessary.

FIG. 26 is a sequence of voice transmission / reception of WLAN-3GPP between the mobile unit and the onboard AP-RNC.

1. The VoIP packet is transmitted from the WLAN processor processing unit of the mobile station.

2. The VoIP packet is sent to the encode / decode unit, decodes the voice data of the VoIP, and encodes the data into AMR.

3. The generated AMR data is sent to the 3GPP protocol processing unit, and the 3GPP protocol processing unit sends this AMR data to the RNC using a channel of the corresponding DTCH.

4. When sending voice data from the RNC to the mobile device, the AMR data is sent to the 3GPP protocol processing unit, and the AMR data transmitted on the channel of the DTCH is sent to the encode / decode unit.

5. The encode / decode unit decodes the data of the AMR, encodes the voice data of the VoIP, and sends this VoIP packet to the mobile unit.

Iii. A method and operation of installing an RFID tag reader / writer for realizing a function of discriminating an instrument of getting on and off a vehicle using an RFID tag will be described.

Below, an example of the data format transmitted from the RFID writer of a getting off notification and a mobile network ID, and the installation method of an RFID tag reader / writer are shown.

27 is a diagram showing a data format from RFID and a data format of mobile network ID.

i. About data format of notice of getting off

27A shows an example of the data format of the disembarkation notification.

The data of the getting off notification consists of header information of the data length according to the RFID data format, and the content of the getting off notification of 4 bits of data length, for example.

Ii. About data type of mobile network ID

An example of the data format of the mobile network ID is shown in Fig. 27B.

The data of the mobile network ID is composed of header information having a data length according to the RFID data format, and the contents of a Network Moving ID having a data length of 32 bits, for example.

<Configuration example of the installation method of the RFID tag reader / writer>

28-31 is a figure which shows the example of the installation method of an RFID tag reader / writer.

1. Method 1 in which the RFD tag writer is attached to two places in the vehicle other than the vehicle (Fig. 28)

Two out-of-vehicle RFID tag writers and two in-vehicle RFID tag writers operate simultaneously, and continue to send outboard notifications from out-of-vehicle RFID tag writers and ride notifications (including mobile network IDs) from in-vehicle RFID tag writers. do.

When the mobile device gets on the vehicle, it receives the getting off notification from the off-vehicle RFID writer and then receives the mobile network ID from the in-car RFID writer. Since it was received in the order of the getting off notification → the mobile network ID, it is determined that the mobile boarded the vehicle (Fig. 28 (a)).

The mobile device sends an acquired mobile network ID to the CN, is instructed to switch from the CN to the onboard AP, and switches the communication system from the 3GPP protocol to the WLAN, which is the communication system from the onboard AP (FIG. 28 (b)).

After switching to the in-vehicle AP, communication is performed in the WLAN until the disembarkation notification from the RFID is received (FIG. 28 (c)).

When the mobile device gets off from the vehicle, the mobile device receives the mobile network ID from the in-car RFID writer and then receives the getting off notification from the in-car RFID writer. Since it was received in the order of the mobile network ID → getting off notification, it is determined that the mobile has got off from the vehicle, and the mobile switches to 3GPP to return to normal communication (Fig. 28 (d)).

2. Method 2 in which the RFID tag writer is attached to two places in the vehicle other than the vehicle (Fig. 29)

The out-of-vehicle RFID tag writer continuously transmits the disembarkation notification to the mobile device when the door is opened, and the in-vehicle RFID tag writer transmits the boarding notification (including the mobile network ID) to the mobile for a predetermined time when the door is closed.

The mobile device acquires the disembarkation notification via RFID, but discards it because it has not acquired the disability notification (Fig. 29 (a)).

After closing the vehicle door, the mobile network ID is transmitted from the in-car RFID writer. The mobile device acquires the mobile network ID via RFID, transmits it to the CN, is instructed to switch the access point from the CN to the onboard AP, and switches (Fig. 29 (b)).

After switching to the in-vehicle AP, the communication is continued until the getting off notification from the RFID is received (Fig. 29 (c)).

After the vehicle door is opened, the disembarkation notification is transmitted from the RFID writer outside the vehicle. The mobile device acquires the getting off notification via RFID, switches to 3GPP, and returns to normal communication (Fig. 29 (d)).

3. Method 1 in which the RFID tag writer is attached to the inside of the vehicle and the outside of the vehicle (for example, on a station groove) (FIG. 30)

Both the RFID tag writer on the reverse home and the RFID tag writer on the vehicle operate at the same time, and the get off notice is received from the RFID tag writer on the reverse home and the boarding notice (including the mobile network ID) from the in-vehicle RFID tag writer. Send it.

When the mobile device gets on the vehicle, it receives the getting off notification from the RFID writer provided in the home other than the vehicle, and then receives the mobile network ID from the in-car RFID writer. Since it has received in the order of getting off notification → mobile network ID, it is determined that the mobile device has boarded the vehicle (Fig. 30 (a)). In this case, in FIG. 28 and FIG. 29, the RFID lighter outside the vehicle is attached to the vehicle, but is provided in the groove in FIG. 30.

The mobile device transmits the acquired mobile network ID to the CN, receives an instruction to switch the access point from the CN to the onboard AP, and switches (Fig. 30 (b)).

After switching to the in-vehicle AP, communication is performed until the getting off notification from the RFID is received (Fig. 30 (c)).

When the mobile device gets out of the vehicle, it receives the mobile network ID from the in-car RFID writer and then receives the getting off notification from the out-of-car RFID writer. Since the mobile network ID was received in the order of getting off notification, it is determined that the mobile has got off from the vehicle, and the mobile switches to 3GPP to return to normal communication (Fig. 30 (d)).

4. Method 2 (FIG. 31) of attaching an RFID tag writer inside the vehicle and outside the vehicle (for example, on a station groove).

The RFID tag writer on the reverse groove continues to send the disembarkation notice to the mobile device when the door is opened, and the RFID tag writer in the vehicle transmits the boarding notice (including the mobile network ID) to the mobile device for a certain time when the door is closed.

The mobile device acquires the disembarkation notification via the RFID, but discards it because it has not acquired the disability notification (Fig. 31 (a)).

After closing the vehicle door, the mobile network ID is transmitted from the in-car RFID writer. The mobile device acquires the mobile network ID via the RFID, transmits it to the CN, instructs the onboard AP to switch the access point, and switches (Fig. 31 (b)).

After switching to the in-vehicle AP, communication is performed until the getting off notification from the RFID is received (FIG. 31 (c)).

After the vehicle door is opened, the disembarkation notice is transmitted from the RFID writer outside the vehicle. This synchronization acquires the disembarkation notification via RFID, switches to 3GPP, and returns to normal communication (Fig. 31 (d)).

Claims (20)

A communication system in which a wireless communication device performs wireless communication by means of transporting accessible passengers and cargo, Riding / unloading notification means for notifying the wireless communication means for performing the wireless communication whether the wireless communication means is in a state of getting on or off; In a transport means provided in the means for transporting the passengers and cargoes, and functioning as an access point dedicated to the radio communication means in the means for transporting the passengers and cargoes, and collectively performing access to the communication system of the radio communication means. Access point means, Wireless communication means for accessing the means used as the base of the communication system to communicate when getting off, and for accessing the access point means in the transportation means for communication when getting on. Communication system comprising a. The method of claim 1, And said wireless communication means comprises a system dedicated to access to said known means and a system dedicated to access to access point means in said transport means. The method of claim 2, And said dedicated means for access to said known means is a first wireless communication network other than means for transporting passengers and cargo, and a second wireless communication network in means for transporting passengers and cargo. The method of claim 2, And a dedicated system for access to the access point means in the vehicle is a wireless LAN system or a Bluetooth system. The method of claim 1, And the boarding / unloading notification unit is a communication unit using a radio tag. The method of claim 1, The getting on / off getting off means means that, when the wireless communication means has got off from the means for transporting passengers and cargo, the wireless communication means transports passengers and cargo with information indicating that the wireless communication means has got off. In the case of boarding the means for notifying the wireless communication means of the identifier of the wireless network in the means for transporting passengers and cargo managed by the access point means in the means for transporting the passenger and cargo. Communication system. The method of claim 6, The wireless communication means judges that the passenger has boarded the means for transporting passengers and cargo when the information from the boarding / unloading notification means has become an identifier of a wireless network in the means for transporting passengers and cargo. And when the notification is dismissed from the identifier of the wireless network in the means of transporting the passengers and cargoes, the communication system judges that the user has disembarked from the means of transporting the passengers and cargoes. The method of claim 1, The access point means in said means for transportation comprises communication means for converting voice data from said wireless communication means between a communication protocol in means for transporting passengers and cargo and a protocol of said communication system. system. The method of claim 1, The means for transporting passengers and cargo is any one of a bus, a train, a vehicle of an automobile, a gas of an airplane, and a hull of a vessel. At least two communication means using different communication systems, A ride / unload information receiving means for receiving information of whether the passenger is on board a means of transporting passengers and cargo, or getting off from a means of transporting passengers and cargo, Switching means for switching the communication means to be used based on whether or not the passenger is on board the means for transporting passengers and cargo Wireless communication means comprising a. The method of claim 10, And the boarding / unloading information receiving means receives a notification informing that the boarding is off, or an identifier of a network to which the boarding station belongs. The method of claim 10, And the boarding / unloading information receiving means is a communication means using a wireless tag. The method of claim 10, And said at least two communication means comprises means for using a protocol in mobile communication, and means for using a wireless LAN or means for using Bluetooth. Access means for receiving access to all wireless communication means on board passengers and means for transporting cargo and collectively accessing external networks And an access point in means of transport mounted on means for transporting passengers and cargo. The method of claim 14, And said access means uses a system of wireless LAN or Bluetooth for communication with said wireless communication means. The method of claim 14, The on-board access point is characterized in that the access means uses a mobile communication system for access to an external network. Unloading information notifying means for notifying wireless communication means installed in the means for transporting passengers and cargo, the information that said wireless communication means is in a state of being disembarked from means for transporting passengers and cargo; Ride information notification means for notifying, to the radio communication means, installed outside the means for transporting passengers and cargo, the information that the radio communication means is in a state of riding on means for transporting passengers and cargo. An information notification device having a. Unloading information notification means for notifying wireless communication means installed in the means for transporting passengers and cargo, the information that the radio communication means is in a state of being disembarked from means for transporting passengers and cargo; Ride information notification means for notifying the radio communication means installed at a place where the means for transporting passengers and cargo stops, the information that the radio communication means is in a state of riding on means for transporting passengers and cargo An information notification device having a. The method of claim 17 or 18, And the boarding information notifying means and the boarding information notifying means always transmit signals. The method of claim 17 or 18, And the boarding information notifying means and the boarding information notifying means transmit a signal for a predetermined time after the entrance and exit of the means for transporting passengers and cargoes is opened and closed.

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