JP2003324768A - Wireless communication apparatus, ic card storing apparatus, and wireless communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless communication apparatus and an IC card storing apparatus capable of easily using a plurality of terminals and reducing damages to a user due to its missing or the like and to provide a wireless communication system employing them. <P>SOLUTION: A USIM storing apparatus 2 in the wireless communication system of this invention transmits storage information of a loaded USIM card 3 to a WCDMA terminal 1, and the WCDMA terminal 1 obtains information required for communication operations with a WCDMA base station 4 from a transmission signal of the USIM storing apparatus 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication device represented by a mobile phone or the like.

[0002]

2. Description of the Related Art In recent years, SIM [Subscriber Identity Mo
Mobile phones to which a small IC card such as a dule card or a USIM [Universal SIM] card can be attached are widely used. SIM card is GSM [Global System for Mobi
le communications] This is a small IC card that has been adopted as a standard for mobile phones.
nit] and the like, and has a central processing unit. U
The SIM card is a third-generation mobile phone (W-CDMA
[Wideband-Code Division Multiple Access] IMT [International Mobile Telecommuni
[cations] -2000 or later mobile phone) is a SIM card upper compatible IC card adopted as a standard.

In a memory portion of a USIM card (including a SIM card, the same applies hereinafter), information necessary for operation of a mobile communication wireless protocol (a mobile unit identification number IMSI [International Mobile used for controlling a mobile terminal in a wireless section) is used. S
ubscriber Identity], subscriber information such as own phone number,
Security information such as terminal location information and personal identification number)
In addition, various user information (billing information, phonebook, call history, etc.) is stored, and the communication operation of the mobile phone body (position registration and call reception) is realized by reading the above information from the USIM card. .

In addition, the USIM card has a function of calculating a value of an authentication response to an authentication request from a mobile communication network, and an application operation such as electronic commerce using a short mail service called SMS [Short Message Service]. Function (SAT [SIM Application To
olkit], USAT [USIM Application Toolkit]).

[0005]

Certainly, if the communication operation is performed based on the stored information of the USIM card which can be attached to and detached from the main body, such as the mobile phone having the above-mentioned configuration, the USIM card should be replaced. By simply performing the procedure, the terminal used can be changed without the need for complicated procedures (such as changing the own telephone number). Therefore, it is possible to improve the convenience when replacing the terminal (when changing the model).

Further, in the case of the mobile phone having the above structure, the user can use only one USIM card, that is, 1
It is also possible to use multiple terminals with only one own telephone number. Therefore, in the future, with one USIM card, a plurality of mobile phones (terminals suitable for voice calls, PDAs [Personal Digital / Data Assists] suitable for WEB browsing and e-mail transmission / reception, which are specialized according to their applications, can be obtained.
ant] type or PC [Personal Computer] type terminals, terminals with digital cameras suitable for videophones,
It is expected that there will be a need to selectively use a car navigation system type or hands-free type terminal suitable for mounting on a vehicle, a portable player type terminal suitable for reproducing downloaded music data, and the like.

However, since the mobile phone having the above structure has a structure in which the USIM card is directly attached / detached to / from the terminal body, when a plurality of terminals are properly used with a single USIM card, it is troublesome to attach / detach the terminals. there were. In particular, if the interface section for attaching and detaching the USIM card is provided on the back side of the battery pack attached to the terminal body, the battery pack must be removed before attaching and removing the USIM card. It was a laborious task.

The mobile phone having the above structure is
Since the SIM card is used by mounting it on the terminal body, when the mobile phone is lost, the USIM card mounted on it is also lost. Therefore, when important information of the user is stored in the USIM card, the content may be misused by a third party, resulting in unexpected damage to the user.

In view of the above problems, the present invention makes it easy to properly use a plurality of terminals, and can reduce user damage due to loss or the like, a wireless communication device, an IC card storage device, and the use thereof. The present invention aims to provide a wireless communication system.

[0010]

In order to achieve the above object, a wireless communication apparatus according to the present invention performs wireless communication with a control section for controlling the entire apparatus and a base station according to an instruction from the control section. And a second wireless communication unit that performs wireless communication with an external device according to an instruction from the control unit. The first wireless communication unit is configured to be wirelessly connected via the second wireless communication unit. The information required for the communication operation of the first wireless communication unit is acquired from the external device.

The wireless communication device having the above structure is
A reception intensity measuring unit for measuring the reception intensity of the second wireless communication unit, and if the reception intensity obtained by the reception intensity measuring unit exceeds a predetermined value, establish a wireless connection with the external device,
If it is below the range, it is preferable to disconnect the wireless connection with the external device.

A wireless communication device having the above structure is
It is preferable to have a configuration including a memory unit that stores the information acquired from the external device.

At this time, the wireless communication apparatus having the above configuration has a timer section for counting the passage of time, and the information stored in the memory section is stored from the time of storage based on the count value of the timer section. It is preferable to have a configuration in which the data is automatically erased after a predetermined time has elapsed.

In order to achieve the above object, an IC card storage device according to the present invention is a wireless communication between a control unit for controlling the entire device and a wireless communication device having the above configuration according to an instruction from the control unit. A wireless communication unit for performing communication, and an interface unit for attaching and detaching an IC card storing information necessary for communication operation of the first wireless communication unit constituting the wireless communication device to the control unit. The information stored in the IC card mounted on the interface unit is transmitted to the wireless communication device.

The IC card storage device having the above structure establishes a wireless connection with a plurality of wireless communication devices at the same time.
It is preferable that the communication related information regarding the wireless communication performed between one wireless communication device and the base station is received and the communication related information is transferred to another wireless communication device.

Further, in order to achieve the above object, a wireless communication system according to the present invention is a first wireless unit which performs wireless communication with a control unit for controlling the entire apparatus and a base station according to an instruction from the control unit. A wireless communication device including a communication unit and a second wireless communication unit that performs wireless communication with an external device according to an instruction from the control unit, a control unit that controls the entire device, and a control unit for the control unit. A wireless communication unit that performs wireless communication with the wireless communication device according to an instruction, and an IC card that stores information necessary for communication operation of a first wireless communication unit that configures the wireless communication device is attached to and detached from the control unit. And an IC card storage device having an interface section for storing the information stored in the IC card stored in the interface section of the wireless communication device. Second wireless communication unit Send In contrast, the wireless communication device, based on the IC card storage information received via the second wireless communication unit, and configured to perform radio communication with the base station.

[0017]

1 is a schematic diagram showing an embodiment of a wireless communication system according to the present invention. In the present embodiment, the wireless communication method between the mobile unit and the base station is W
A WCDMA mobile communication system adopting the CDMA wireless communication system will be described as an example.

In the WCDMA mobile communication system of this embodiment, the WCDMA terminal 1 is connected to the USIM storage device 2
Signal transmission using Bluetooth wireless communication method between
Then, the stored information of the USIM card 3 attached to the USIM storage device 2 is transmitted and received. And WCDMA
The terminal 1 uses the stored information and the function of the USIM card 3 obtained from the USIM storage device 2 to communicate with the WCDMA base station 4 by using the WCDMA wireless communication system.
And perform mobile communication according to the WCDMA wireless protocol.

FIG. 2 is a block diagram showing an embodiment of the WCDMA terminal 1. WCDMA terminal 1 uses WCDMA
The WCDMA antenna section 1-1 that transmits and receives radio waves to and from the base station 4, and the A / D and D / A [Analog / D] of the transmitted / received signals.
igital, Digital / Analog] W that performs conversion and filtering
A CDMA radio unit 1-2, a WCDMA baseband unit 1-3 that modulates and demodulates a digital signal according to the WCDMA radio communication system, a codec unit 1-4 that performs code decoding processing of a voice signal, and a microphone and an amplifier are provided. A voice input section 1-5, a voice output section 1-6 having a speaker and an amplifier, and a main control section 1-for controlling the operation of each section of the apparatus.
7 and a display unit 1-8 for displaying various information (characters and images)
And an operation input unit 1-9 that receives a user operation, a memory unit 1-10 that stores various information, a Bluetooth antenna unit 1-11 that transmits and receives radio waves between the USIM storage device 2, and a transmission / reception signal Bluetooth wireless unit 1-12 that performs A / D and D / A conversion and filter processing of the above, and Blue that performs modulation / demodulation of digital signals according to the Bluetooth wireless communication system.
a tooth base band portion 1-13.

The WCDMA antenna section 1-1 is composed of WCDM.
The reception radio wave from the A base station 4 is transmitted to the WCDMA radio unit 1-2, while the transmission radio wave from the WCDMA radio unit 1-2 is transmitted to the WCDMA base station 4.

The WCDMA radio section 1-2 has A / D and D /
A / D converter, various switch circuits, and a filter circuit are included, and the transmission / reception signals exchanged between the WCDMA antenna unit 1-1 and the WCDMA baseband unit 1-3 are D /
A, A / D conversion, and selective passage.

The WCDMA baseband unit 1-3 transmits a transmission data signal (encoded voice signal from the codec unit 1-4, a data signal or control signal from the main control unit 1-7, etc.) to the WCDMA wireless communication system. According to HPSK [Hybrid Phase Shift Key]
ing] and BPSK [Binary Phase Shift Keying] modulation methods, respectively.
It is sent to the A radio unit 1-2. In addition, the WCDMA baseband unit 1-3 uses the QPSK [Quadrature Phase Shift Keyin] for the received data signal from the WCDMA radio unit 1-2.
g] to demodulate and perform despreading to extract encoded voice signals, data signals, control signals, and the like, and the main control unit 1-7
Send to.

The codec section 1-4 processes the coded voice signal from the WCDMA baseband section 1-3 by PCM [Pulse
Code Modulation] signal, and then D / A conversion is performed. The audio signal thus obtained is used as the audio output unit 1
It is output as voice from -6. Also, the codec section 1
-4 is the audio signal input from the audio input unit 1-5.
After the D / D conversion, it is converted into a PCM signal, further compressed and encoded, and sent to the WCDMA baseband unit 1-3.

The main control unit 1-7 has a CPU [Central Proc
essing unit], and processes data signals, control signals, etc. according to the WCDMA wireless communication protocol. Further, the main control unit 1-7 causes the display unit 1-8 to display a screen indicating a communication state (wireless connection establishment state), and receives an input from the user through the operation input unit 1-9. For example, the main control unit 1-7 transmits a control signal to the WCDMA baseband unit 1-3, updates a user setting value, or the like based on the input operation of the operation input unit 1-9.
It controls the screen display of the display unit 1-8. Further, the main control unit 1-7 transmits / receives stored information of the USIM card 3 and request / response signals to / from the USIM card 3 to / from the Bluetooth baseband unit 1-13, and wirelessly communicates with the USIM storage device 2. Performs control for establishing and maintaining connections. The display unit 1-8 has a display panel such as a liquid crystal display, and the operation input unit 1-9 has operation buttons such as dial keys and cursor keys.

The memory unit 1-10 is a flash memory or a ROM [Read Only] accessible from the main control unit 1-7.
Memory], RAM [Random Access Memory], etc., and stores various information and user setting values necessary for WCDMA wireless communication protocol operation. In addition, the memory unit 1-
The ROM constituting 10 stores a program for realizing each function of the USIM card 3 (authentication response calculation, USAT, etc.).

The Bluetooth antenna unit 1-11 is a USI
While receiving radio waves input from the M storage device 2 to the Bluetooth wireless unit 1-12, the Bluetooth wireless unit 1-12
The radio wave transmitted from 12 is transmitted to the USIM storage device 2.

The Bluetooth radio unit 1-12 has A / D, D
A / A converter, various switch circuits, and a filter circuit are included, and a transmission / reception signal exchanged between the Bluetooth antenna unit 1-11 and the Bluetooth baseband unit 1-13 is D / A-A / D-converted. Or select and pass.

The Bluetooth baseband unit 1-13 sends a transmission signal (information stored in the USIM card 3 read from the memory unit 1-10, a request signal to the USIM card 3, etc.) to a FHSS [Frequency Hopping Spread Spectru].
m] and GFSK [GaussianFrequency Shift Keying]
According to the baseband signal, the Bluetooth radio unit 1-
Send to 12. Also, the Bluetooth baseband unit 1-
13 receives the received signal from the Bluetooth wireless unit 1-12 by F
By demodulating according to HSS and GFSK, USIM
Information stored in the card 3 and a response signal from the USIM card 3 are taken out and sent to the main controller 1-7.

FIG. 3 is a block diagram showing an embodiment of the USIM storage device 2. USIM storage device 2 is a WCD
A Bluetooth antenna unit 2-1 that transmits and receives radio waves to and from the MA terminal 1, a Bluetooth wireless unit 2-2 that performs A / D and D / A conversion of transmitted / received signals and filter processing, and Bluetooth.
Bl that modulates and demodulates digital signals according to the wireless communication system
The uetooth baseband unit 2-3, the main control unit 2-4 that controls the operation of each unit of the apparatus, the display unit 2-5 that displays various information (characters and images), and the operation input unit 2- that receives user operations. 6, a memory unit 2-7 for storing various information,
U for attaching / detaching USIM card 3 to / from main controller 2-4
And a SIM interface unit 2-8.

The Bluetooth antenna section 2-1 is a WCDM.
The reception radio wave from the A terminal 1 is sent to the Bluetooth radio unit 2-2, while the transmission radio wave from the Bluetooth radio unit 2-2 is sent to the WCDMA terminal 1.

The Bluetooth radio section 2-2 has A / D and D /
It has an A converter, various switch circuits, and a filter circuit, and transmits / receives a transmission / reception signal exchanged between the Bluetooth antenna section 2-1 and the Bluetooth baseband section 2-3.
A, A / D conversion, and selective passage.

The Bluetooth baseband unit 2-3 transmits a transmission signal (information stored in the USIM card 3 or the WCDMA terminal 1).
Response signal to the Bluetooth radio unit 2-2 as a baseband signal according to FHSS or GFSK. Also, the Bluetooth baseband unit 2-3 is Bluetooth
The reception signal from the th wireless unit 2-2 is demodulated in accordance with FHSS or GFSK to take out information stored in the USIM card 3 or a request signal and send it to the main control unit 2-4.

The main controller 2-4 has a CPU,
Process data and control signals according to the Bluetooth wireless communication protocol. In addition, the main control unit 2-4 includes the display unit 2
A screen showing a communication state (wireless connection established state) is displayed through -5, and a user input is accepted through the operation input unit 2-6. For example, the main control unit 2-4 controls the power supply of the USIM storage device 2 based on the input operation on the operation input unit 2-6. Further, the main controller 2-4
The storage information of the USIM card 3 and request / response signals with the USIM card 3 are transmitted / received to / from the Bluetooth baseband unit 2-3, and control for establishing and maintaining a wireless connection with the WCDMA terminal 1 is performed. The display unit 2-5 has a display panel such as a liquid crystal display, and the operation input unit 2-6 has operation buttons such as a power key.

The memory unit 2-7 comprises a flash memory, a ROM, a RAM, etc. accessible from the main control unit 2-4, and stores information necessary for establishing wireless communication and controlling data transmission / reception in the main control unit 2-4. Or USIM Card 3
It is used when temporarily storing the stored information of.

The USIM interface unit 2-8 is U
The main controller 2-4 is a part that serves as an electrical contact for mounting the SIM card 3 in the main controller 2-4.
USIM card 3 through interface 2-8
Read and write information stored in.

Subsequently, in the WCDMA terminal 1 having the above structure, the USIM mounted in the USIM storage device 2
Information stored in the card 3 (mobile unit identification number IMSI,
Subscriber information such as own telephone number, terminal position information, security information such as personal identification number, etc.) is read out, and a series of operations when performing wireless communication with the WCDMA base station 4 using the stored information will be described in detail. I do.

When the wireless connection between the WCDMA terminal 1 and the USIM storage device 2 is established, the main controller 1-7 of the WCDMA terminal 1 reads from the USIM card 3 prior to wireless communication with the WCDMA base station 4. A data read request signal is created using the data identification value (file ID) of the storage information to be output as a parameter. The data read request signal is sent to the Bluetooth baseband unit 1-13, Bluetooth
Radio waves are transmitted via the radio unit 1-12 and the Bluetooth antenna unit 1-11 and transmitted to the air.

The radio wave transmitted from the WCDMA terminal 1 by the above operation is transmitted by the Bluetooth of the USIM storage device 2.
After being received by the antenna unit 2-1, the Bluetooth wireless unit 2
-2, via the Bluetooth baseband unit 2-3, is input to the main control unit 2-4.

The main controller 2-4 analyzes the received signal input from the Bluetooth baseband unit 2-3 and determines whether the received signal is a data read request signal. Here, when it is determined that the received signal is the data read request signal, the main control unit 2-4 accesses the USIM card 3 through the USIM interface unit 2-8 and extracts it from the parameter of the data read request signal. It is requested to read the stored information corresponding to the file ID. Upon receiving the request, the USIM card 3 reads the stored information corresponding to the file ID. The read stored information is sent to the main control 2-4 through the USIM interface unit 2-8.

In the main controller 2-4 to which the stored information of the USIM card 3 is input, a data read response signal is created using the stored information as a parameter. The data read response signal is converted into a radio wave via the Bluetooth baseband unit 2-3, the Bluetooth wireless unit 2-2, and the Bluetooth antenna unit 2-1 and sent out in the air.

The radio wave transmitted from the USIM storage device 2 by the above operation is transmitted by the Bluetooth of the WCDMA terminal 1.
It is received by the antenna unit 1-11, and the Bluetooth wireless unit 1-
12, via the Bluetooth baseband unit 1-13,
It is input to the main control unit 1-7. The main control unit 1-7 acquires the storage information of the USIM card 3 from the input data read response signal, and uses the storage information to acquire the WCDMA base station 4
Wireless communication with.

In this way, from the USIM storage device 2 to Blue
WCDMA in the WCDMA terminal 1 using the stored information of the USIM card 3 transmitted by the tooth wireless communication method.
With the configuration for performing the wireless communication operation, the WC by the WCDMA terminal 1 can be used in a non-contact state without physically mounting the USIM card 3 on the WCDMA terminal 1.
It is possible to realize the DMA wireless communication operation.

Therefore, in the WCDMA mobile communication system of this embodiment, the WCDMA terminal 1 and the USIM card 3 are
It is possible to easily use a plurality of WCDMA terminals 1 properly with one USIM card 3 without performing a complicated attachment / detachment operation. Further, even when the WCDMA terminal 1 is lost, the USIM card 3 remains in the user's hand, so that the stored information is not likely to be misused by a third party, and the damage to the user due to the loss of the WCDMA terminal is reduced. It becomes possible to do.

The Bluetooth wireless communication operation between the WCDMA terminal 1 and the USIM storage device 2 will be described below in detail.

First, the operation of establishing a wireless connection between the WCDMA terminal 1 and the USIM storage device 2 which is not connected to the WCDMA terminal 1 is shown in FIG.
Will be described with reference to. As shown in the figure, in the USIM storage device 2 in the terminal unconnected state (S1), first, in step F1, the radio wave from the WCDMA terminal 1 is periodically searched.

Thereafter, in step F2, the level (reception intensity) of the retrieved radio wave is measured, and the subsequent step F2
In 3, it is determined whether or not the radio wave level is higher than the specified value. Here, if it is determined that the radio wave level is higher than the specified value, the flow proceeds to step F4, but if it is determined that the radio wave level is lower than the specified value, the flow is returned to step F1 and the terminal of the USIM storage device 2 is terminated. The unconnected state (S1) is continued.

When it is determined in step F3 that the measured radio wave level is higher than the specified value, in step F4, the radio wave searched in step F1 is used to perform WCD.
Connection information (ID for identifying both devices, etc.) necessary for establishing a wireless connection between them is exchanged with the MA terminal 1, and in the subsequent step F5, the content of the exchanged connection information is valid. Whether or not there is is determined. Here, if the content of the connection information is determined to be valid, the USIM storage device 2 transitions to the terminal connection established state (S2), but if the content is determined to be invalid, the flow proceeds to step F1. Then, the terminal unconnected state (S1) of the USIM storage device 2 is continued.

With this structure, the WCD
The operation corresponding to the mounting of the USIM card on the MA terminal can be realized simply by bringing the WCDMA terminal 1 and the USIM card storage device 2 close to each other.

Next, the wireless communication operation of the USIM storage device 2 in the terminal connection established state will be described with reference to FIG. As shown in this figure, the end unconnected state (S
In the USIM storage device 2 in 2), first, step F6
, Data transmitted / received to / from the WCDMA terminal 1 (data transmitted to the WCDMA terminal 1 including a request and a response, or W
The presence / absence of data received from the CDMA terminal 1) is determined. Here, if it is determined that there is transmission / reception data, the flow proceeds to step F7, and if it is determined that there is no transmission / reception data, the flow proceeds to step F9.

If it is determined in step F6 that there is transmission / reception data, data transmission / reception is performed with the WCDMA terminal 1 in step F7 according to the procedure described above. At this time, in step F8, it is determined whether or not the data transmission / reception has succeeded. Here, if it is determined that the transmission and reception are successful, the flow proceeds to step F9,
If it is determined that the transmission / reception has failed, it is considered that the wireless connection with the WCDMA terminal 1 has been disconnected, and the USIM storage device 2 is transited to the terminal unconnected state (S1).

With such a configuration, the WCD
An operation equivalent to detaching the USIM card from the MA terminal can be realized only by detaching the WCDMA terminal 1 and the USIM card storage device 2.

On the other hand, if it is determined in step F6 that there is no transmission / reception data, or if it is determined in step F8 that transmission / reception has succeeded, in step F9, the WCDMA terminal that is currently establishing a wireless connection (hereinafter referred to as terminal A). In order to confirm whether or not another WCDMA communication terminal is present closer, a radio wave different from the radio wave currently in use is periodically searched.

Then, in step F10, the level of the retrieved radio wave is measured, and in the following step F11,
It is determined whether or not the radio wave level is higher than the radio wave level of the terminal A. Here, if it is determined that the measured radio wave level is higher than the radio wave level of the terminal A, the flow proceeds to the subsequent step F12, but if it is determined that it is lower than the radio wave level of the terminal A, the flow proceeds to step F6. Then, the terminal connection establishment state (S2) between the USIM storage device 2 and the terminal A is continued.

When it is determined in step F11 that the measured radio wave level is higher than the radio wave level of the terminal A, in step F12, the radio wave searched in step F9 is used to transmit the radio wave. The connection information necessary for establishing a wireless connection between the WCDMA terminal (hereinafter, referred to as terminal B) is exchanged, and the content of the exchanged connection information is valid in the following step F13. It is determined whether or not. Here, if it is determined that the content of the connection information is valid, the USIM storage device 2 transits to the terminal connection switching state (S3) in which the wireless connection is established with both terminals A and B. However, if it is determined that the content is invalid, the flow returns to step F6, and the terminal connection establishment state (S2) between the USIM storage device 2 and the terminal A is continued.

With this configuration, even when the terminal used is switched from one terminal A to another terminal B,
The USIM card storage device 2 only needs to be separated from the terminal A and brought closer to another terminal B, which is convenient for the user.

Next, the USIM in the terminal connection switching state
The wireless communication operation of the storage device 2 will be described with reference to FIG. As shown in the figure, the state in which the end connection is being switched (S
In the USIM storage device 2 in 3), first, step F1
4, WCDMA communication related information (information about channels such as wireless characteristics and frequency, encryption key information, mobile device identification information, call number, wireless communication terminal status, etc.) for the terminal A. information)
Is sent. Then, in the following step F15, the WC from the terminal A is sent as a response to the transmission request.
DMA communication related information is received.

Thereafter, in step F16, the WCDMA communication related information received in step F15 is transmitted to the terminal B. Then, in the following step F17, a request for starting the WCDMA wireless communication is issued to the terminal B in order to let the terminal B take over the WCDMA wireless communication being executed in the terminal A.

Further, in the following step F18, it is determined whether or not the transfer processing of the WCDMA communication related information in the above steps F14 to F17 has succeeded. Here, if it is determined that the transfer process is successful, the flow is Step F.
If it is determined that the transfer processing has failed, the flow proceeds to step F19b.

When it is determined in step F18 that the transfer process is successful, a request for disconnecting the wireless connection is issued to the terminal A in step F19a, and the USIM storage device 2 causes the terminal B to disconnect.
A transition is made to the terminal connection establishment state (S2). And
In the terminal B having the wireless connection established with the USIM storage device 2, based on the received WCDMA communication-related information, the setting value (channel information and the like) and the state with which the terminal A was communicating are set to exactly the same setting value and state. WCD with WCDMA base station 4
MA communication is started.

With such a configuration, in the WCDMA mobile communication system of this embodiment, the WCDMA wireless communication at the terminal A can be taken over by the terminal B. In other words, the terminal to be used can be switched from the terminal A to the terminal B while continuing the WCDMA wireless communication in the terminal A. Therefore, when an incoming call is received by one terminal, it is possible to perform an operation of receiving or responding to the incoming call by another terminal suitable for the type of the incoming call (voice, data communication, videophone, etc.).

On the other hand, if it is determined in step F18 that the transfer process has failed, a request for disconnecting the wireless connection is issued to the terminal B in step F19b, and the USIM storage device 2
Transitions to the terminal connection established state with terminal A (S2).

In the terminal connection switching state (S3) described above, the WCDMA base station 4 may receive the same WCDMA radio wave from both terminals A and B. In such a situation, Is treated as a mere multipath phenomenon, so it is not a big problem.

Next, the wireless connection establishing operation of the WCDMA terminal 1 which is not connected to the USIM storage device 2 will be described with reference to FIG.
Will be described with reference to. As shown in this figure, USIM
In the WCDMA terminal 1 in the unconnected state (S4), first, in step F20, the radio wave used for wireless connection with the USIM storage device 2 is periodically transmitted, and in the following step F21, the transmission from the USIM storage device 2 is performed. A determination is made whether wireless connection information has been received. Here, if it is determined that the wireless connection information has been received, the flow proceeds to step F22 that follows, but if it is determined that the wireless connection information has not been received, the flow returns to step F20 and WCDMA.
The USIM unconnected state (S4) of the terminal 1 is continued.

If it is determined in step F21 that the wireless connection information has been received, in step F22 the USI
Connection information necessary for establishing a wireless connection between them is exchanged with the M storage device 2 (see step F4), and in the following step F23, whether the exchanged connection information is valid or not. Is determined. If it is determined that the content of the connection information is valid, the WCDMA terminal 1 determines that the US
Although the state is transited to the IM connection established state (S5), if it is determined that the contents are invalid, the flow is returned to step F20, and the USIM unconnected state (S4) of the WCDMA terminal 1 is continued.

Next, the WCD in the USIM connection established state
The wireless communication operation of the MA terminal 1 will be described with reference to FIG. As shown in this figure, the USIM connection establishment state (S
In the WCDMA terminal 1 in 5), first, in step F24
In, the presence / absence determination of the transmission / reception data with respect to the USIM storage device 2 (the transmission data to the USIM storage device 2 including the request and the response, or the reception data from the USIM storage device 2) is performed. Here, if it is determined that there is transmission / reception data,
The flow proceeds to the subsequent step F25, but if it is determined that there is no transmission / reception data, the flow is returned to step F24 and the presence / absence confirmation of the transmission / reception data is continued.

When it is determined in step F24 that there is transmission / reception data, data is transmitted / received to / from the USIM storage device 2 in step F25 according to the procedure described above. At this time, in step F26, it is determined whether or not the data transmission / reception has succeeded. Here, if it is determined that the transmission / reception has succeeded, the flow proceeds to step F27, but if it is determined that the transmission / reception has failed, it is considered that the wireless connection with the USIM storage device 2 has been disconnected, and the WCDMA terminal 1
Is transited to the USIM unconnected state (S4).

When it is determined in step F26 that the transmission / reception has succeeded, it is determined in step F27 whether the received data is a wireless connection disconnection request. Here, if the disconnection request is not received, the flow continues to step F2.
8 proceed to USIM if disconnect request is received
The wireless connection with the storage device 2 is disconnected, and the WCDMA terminal 1
Is transited to the USIM unconnected state (S4).

When it is determined in step F27 that the disconnection request has not been received, it is determined in step F28 whether the received data is a backup request for the USIM card 3. Here, if the backup request is received, the flow proceeds to the subsequent step F29. However, if the backup request is not received, after the processing according to the received data is performed, the flow proceeds to step F2.
Then, the process returns to 4 and the confirmation of the presence / absence of transmitted / received data is continued.

If it is determined in step F28 that the backup request for the storage information of the USIM card 3 is received, in step F29 the USIM storage device 2 is received.
After the storage information of the USIM card 3 obtained from is stored in the memory unit 1-10, a timer T0 having a timer value indicating the expiration date of the backed up data is activated, and the WCDMA terminal 1 is in an independent activation state (S6). Is transitioned to.

Here, the independent activation state of the WCDMA terminal 1 will be described. As described above, the USIM is previously stored in the ROM configuring the memory unit 1-10 of the WCDMA terminal 1.
A program for realizing each function of the card 3 is stored. Therefore, the WCDMA terminal 1 of this embodiment is
By having a copy of the stored information on the M card 3, U
Emulates the operation of the SIM card 3, as if U
WCDM as if SIM card 3 is installed
WCDMA communication and the like can be performed by the A terminal 1 alone.
In this specification, such an operation state is referred to as a single activation state of the WCDMA terminal 1. With such a configuration, it is possible to carry out WCDMA without carrying the USIM card 3.
Since the terminal 1 alone can perform WCDMA wireless communication, loss of the USIM card 3 can be reduced.

When it is necessary to update the stored information of the USIM card 3 in association with the WCDMA wireless communication operation while the WCDMA terminal 1 is in the single-startup state, the WCDMA terminal 1 of the present embodiment has the memory unit 1- The updated information is overwritten on the stored information of the USIM card 3 copied to 10. With such a configuration, the WCD will be described later.
When the independent activation state of the MA terminal 1 is released and the wireless connection with the USIM storage device 2 is established, the memory unit 1-1
The updated data stored in 0 is overwritten on the USIM card 3 so that the stored information of the USIM card 3 is in the latest state (that is, when the USIM card 3 is attached to the WCD card).
It is possible to maintain the same state as when the MA terminal 1 is used.

Next, the operation limitation of the WCDMA terminal 1 in the independently activated state will be described with reference to FIG. As shown in the figure, the WCDM in the single start state (S6)
At the terminal A, the timer T0 (see step F29) is monitored, and at step F30, the timer T0 is monitored.
A determination is made as to whether 0 has timed out. Here, if it is determined that the timer T0 has timed out,
The flow proceeds to step F31, and if it is determined that the timeout has not yet occurred, the flow proceeds to step F32.

If it is determined in step F30 that the timer T0 has timed out, in step F31,
The stored information of the USIM card 3 copied to the memory unit 1-10 is erased, and the WCDMA terminal 1 is transited to the USIM unconnected state (S4).

On the other hand, in step F30, the timer T0
If it is determined that has not timed out, then in step F32, it is determined whether or not the user's single start / stop request is input from the operation input unit 1-9. Here, if the single activation stop request is input, the WCDMA terminal 1 is transited to the USIM unconnected state (S4), and if not input, the flow is returned to step F30 again, and W
The single activation state (S6) of the CDMA terminal 1 is continued.

When the state is changed to the USIM unconnected state (S4) in response to the user's single activation stop request, unlike the transition to the USIM unconnected state (S4) due to a time-out, the memory section 1-10 is stored. Since the copied stored information of the USIM card 3 is not erased, when the wireless connection with the USIM storage device 2 is established, the memory unit 1-
By overwriting the updated data stored in 10 on the USIM card 3, it becomes possible to keep the stored information of the USIM card 3 in the latest state.

As described above, by providing a predetermined limit (time limit in this embodiment) in the independently activated state of the WCDMA terminal 1, even when the WCDMA terminal 1 in the independently activated state is stolen, the WCDMA terminal 1 is stolen. Can be prevented from being used by a third party for a long period of time, or the stored information can be read and misused.

In the above embodiment, the present invention is applied to WCD.
Although the description has been given by taking as an example the case where the present invention is applied to the MA mobile communication system, the application target of the present invention is not limited to this, and the present invention can be widely applied to wireless communication systems employing other communication methods. It is possible. Further, the wireless communication system between the wireless communication device and the IC card storage device is not limited to the Bluetooth wireless communication system exemplified in the above embodiment.

[0078]

As described above, the wireless communication device according to the present invention includes a control unit for controlling the entire device, and a first wireless communication unit for performing wireless communication with a base station according to an instruction from the control unit. A second wireless communication unit that performs wireless communication with an external device according to an instruction from the control unit, and communication of the first wireless communication unit from the external device wirelessly connected via the second wireless communication unit. It is configured to acquire the information required for operation.

With such a configuration, the IC card (SIM card or USIM card) in which the information necessary for the wireless communication operation is stored is not physically attached to the wireless communication device, but is kept in the non-contact state. Thus, it becomes possible to realize the wireless communication operation by the wireless communication device.

The wireless communication device having the above configuration is
It has a reception strength measuring unit for measuring the reception strength of the second wireless communication unit, and if the reception strength obtained by the reception strength measuring unit is above a predetermined value, establishes a wireless connection with an external device and falls below it. If so, it is preferable to disconnect the wireless connection with the external device.

With such a structure, the operation corresponding to the mounting of the IC card on the wireless communication device can be realized only by bringing the wireless communication device and the external device close to each other. Further, the operation corresponding to the detachment of the IC card from the wireless communication device can be realized only by detaching the wireless communication device and the external device.

The wireless communication device having the above configuration is
It is preferable to have a configuration including a memory unit that stores information acquired from an external device.

With such a configuration, the wireless communication device can perform wireless communication with the base station by itself without carrying the external device, so that loss of the external device storing important information is reduced. It becomes possible.

At this time, the radio communication apparatus having the above-mentioned configuration has a timer section for counting the passage of time, and based on the count value of the timer section, the information stored in the memory section is stored for a predetermined time from the time of storage. It is advisable to adopt a configuration in which it is automatically erased after the elapse.

With such a configuration, even if the wireless communication device in the independently activated state is stolen, the wireless communication device can be used by a third party for a long time or the stored information can be read out. It can be prevented from being abused and abused.

Further, in order to achieve the above object, an IC card storage device according to the present invention is a wireless communication between a control unit for controlling the entire device and a wireless communication device having the above configuration according to an instruction from the control unit. A wireless communication unit for performing communication, and an interface unit for attaching / detaching an IC card storing information necessary for communication operation of the first wireless communication unit constituting the wireless communication device to / from the control unit, The information stored in the IC card attached to the interface unit is transmitted to the wireless communication device.

With such a configuration, it becomes possible to transmit the stored information of the IC card having no wireless communication function to the wireless communication device.

The IC card storage device having the above structure establishes a wireless connection simultaneously with a plurality of wireless communication devices,
It is preferable that the communication-related information regarding the wireless communication performed between the one wireless communication device and the base station be received and the communication-related information be transferred to another wireless communication device.

With such a configuration, the wireless communication in one wireless communication device can be taken over by another wireless communication device. In other words, it is possible to switch the use terminal from one wireless communication device to another wireless communication device while continuing wireless communication in one wireless communication device. Therefore,
When an incoming call is received by one terminal, an operation such as receiving or responding to the incoming call can be performed by another terminal suitable for the type of the incoming call.

Further, in order to achieve the above object, the wireless communication system according to the present invention includes a control unit for controlling the entire apparatus, and a first wireless unit for performing wireless communication with a base station according to an instruction from the control unit. A wireless communication device including a communication unit and a second wireless communication unit that wirelessly communicates with an external device according to an instruction from the control unit, a control unit that controls the entire device, and an instruction from the control unit. An interface for attaching / detaching an IC card storing information necessary for communication operation of a wireless communication unit for wirelessly communicating with a wireless communication device and a first wireless communication unit configuring the wireless communication device to / from the control unit. And an IC card storage device having a unit, the IC card storage device stores the stored information of the IC card mounted in the interface unit to the second wireless communication unit of the wireless communication device. Send,
The wireless communication device receives the I received through the second wireless communication unit.
It is configured to perform wireless communication with the base station based on the information stored in the C card.

With such a configuration, the IC card (SIM card or USIM card) in which the information necessary for the wireless communication operation is stored is not physically attached to the wireless communication device, but is kept in the non-contact state. Thus, it becomes possible to realize the wireless communication operation by the wireless communication device.

Therefore, in the radio communication system according to the present invention, it is possible to easily use a plurality of radio communication devices with one IC card without performing a complicated attaching / detaching operation of the radio communication device and the IC card. Become. Further, even if the wireless communication device is lost, the IC card remains in the user's hand, so there is no risk of the stored information being misused by a third party, and the damage to the user due to the loss of the wireless communication device can be reduced. It will be possible.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an embodiment of a wireless communication system according to the present invention.

FIG. 2 is a block diagram showing an embodiment of a WCDMA terminal 1.

FIG. 3 is a block diagram showing an embodiment of a USIM storage device 2.

FIG. 4 is a USI that is not connected to the WCDMA terminal 1.
7 is a flowchart showing an example of a wireless connection establishing operation of the M storage device 2.

FIG. 5: USIM storage device 2 in a terminal connection established state
5 is a flowchart showing an example of the wireless communication operation of FIG.

FIG. 6 is a flowchart showing an example of a wireless communication operation of the USIM storage device 2 in a terminal connection switching state.

FIG. 7: WC not connected to USIM storage device 2
6 is a flowchart showing an example of a wireless connection establishing operation of the DMA terminal 1.

FIG. 8 is a flowchart showing an example of a wireless communication operation of the WCDMA terminal 1 in a USIM connection established state.

FIG. 9 is a flowchart showing an example of operation restriction of the WCDMA terminal 1 in the single activation state.

[Explanation of symbols]

1 WCDMA terminal 2 USIM storage device 3 USIM card 4 WCDMA base station 5 Signal transmission using WCDMA wireless communication system 6 Signal transmission using Bluetooth wireless communication system 1-1 WCDMA antenna section 1-2 WCDMA radio section 1-3 WCDMA baseband section 1-4 Codec section 1-5 Voice input section 1-6 Audio output section 1-7 Main control unit 1-8 Display 1-9 Operation input section 1-10 Memory section 1-11 Bluetooth antenna part 1-12 Bluetooth wireless unit 1-13 Bluetooth baseband section 2-1 Bluetooth antenna section 2-2 Bluetooth wireless unit 2-3 Bluetooth baseband section 2-4 Main control unit 2-5 Display 2-6 Operation input section 2-7 Memory section 2-8 USIM interface section

Claims (7)

[Claims] 1. A control unit for controlling the entire apparatus, a first wireless communication unit for performing wireless communication with a base station according to an instruction from the control unit, and a wireless communication with an external device according to an instruction from the control unit. A second wireless communication unit that performs communication, and acquires information necessary for the communication operation of the first wireless communication unit from the external device wirelessly connected via the second wireless communication unit. Wireless communication device. 2. A wireless communication with the external device, comprising: a reception strength measuring section for measuring a reception strength of the second wireless communication section; and if the reception strength obtained by the reception strength measuring section exceeds a predetermined value. The wireless communication apparatus according to claim 1, wherein the connection is established and the wireless connection with the external device is disconnected if the connection is lower than the established value. 3. A memory unit for storing the information acquired from the external device.
Alternatively, the wireless communication device according to claim 2. 4. A timer unit for counting elapsed time,
4. The wireless communication apparatus according to claim 3, wherein the information stored in the memory unit is automatically erased after a predetermined time has elapsed from the time of storage, based on the count value of the timer unit. 5. A control section for controlling the entire apparatus, a wireless communication section for performing wireless communication with the wireless communication apparatus according to claim 1 in accordance with an instruction from the control section, An interface unit for inserting and removing an IC card storing information necessary for a communication operation of a first wireless communication unit that constitutes the wireless communication device into and from the control unit, and the interface unit is attached to the interface unit. IC storing information stored in the IC card to the wireless communication device
Card storage device. 6. A wireless connection is established at the same time as a plurality of wireless communication devices, and communication-related information related to wireless communication performed between one wireless communication device and the base station is received, and
The IC card storage device according to claim 5, wherein the communication related information is transferred to another wireless communication device. 7. A control unit for controlling the entire apparatus, a first wireless communication unit for performing wireless communication with a base station according to an instruction from the control unit, and a wireless communication with an external device according to an instruction from the control unit. A wireless communication device including a second wireless communication unit that performs communication, a control unit that controls the entire device, and a wireless communication unit that performs wireless communication with the wireless communication device according to an instruction from the control unit. And an interface unit for attaching and detaching an IC card storing information necessary for communication operation of the first wireless communication unit constituting the wireless communication device to the control unit, , The IC card storage device transmits stored information of the IC card mounted on the interface unit to a second wireless communication unit of the wireless communication device, and the wireless communication device, Received via the second wireless communication unit Wireless communication system on the basis of the IC card storage information, and performs wireless communication with the base stations.