JP5353611B2 - Wireless communication apparatus and wireless communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set a security level, without troubling a user, in accordance with use conditions of a wireless communication apparatus and to ensure the required security level. <P>SOLUTION: A control unit 22 of a mobile communication terminal 1 reads from a storage unit 25 a security level set and stored in accordance with a condition of usage beforehand on receipt of a BT connection request (step S101:YES) and permits BT connection (step S105) in a low level (step S103:"LO") but displays on a display unit 14 a screen for requiring confirmation of the connection in a high level (step S107). When an operation for permitting the connection is performed (step S109:YES), the connection of the BT is permitted (step S105). When an operation not to permit the connection is performed (step S109:NO), processing is finished without performing the connection. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

The present invention relates to a wireless communication device and a wireless communication method, and more particularly to a wireless communication method including setting of a security level and a wireless communication device that implements the wireless communication method.

In the field of communication technology, ensuring security is counted as an important issue. Above all,
In a wireless communication system in which information propagates in an open space, the importance is high, and it is assumed that the counterpart device exists in a very short distance such as the same room, for example, Bluetooth (
Bluetooth (registered trademark), hereinafter abbreviated as BT. Various security measures are also provided for systems such as

In general, there are a plurality of security levels. For example, one of the plurality of security levels may be selected and set depending on the environment in which the wireless communication system is installed, the use conditions of the device, or the like. However, it is not desirable for the user to make such a security setting determination from the viewpoint of reducing the user's work load and improving convenience. Therefore, a technique for ensuring security and convenience is disclosed (for example, Patent Document 1).
Or refer to Patent Document 2. ).

According to the above-mentioned Patent Document 1, connection authentication can be set for each of file transfer, object exchange, image transfer, and other functions executed between a server side device and a client side device that can be connected to each other by BT. it can. In addition, the setting can be performed separately for the server and the client.

According to the above-mentioned Patent Document 2, the mobile phone is provided with means for determining its own use state, and maintains various functions in an operable state when it is determined that the mobile phone is neither abnormal nor left. be able to.

JP 2007-68035 A (5th page, FIG. 8) JP 2008-306212 A (page 13 and FIG. 11)

The technique disclosed in Patent Document 1 has a configuration in which a user is allowed to select a security level for each function type, assuming a personal computer, for example. For wireless communication devices such as mobile phones that require a wider range of users and simpler operations than personal computers, a method that does not require a procedure for the user to select is more preferable.

The technique disclosed in Patent Document 2 determines whether or not various functions can be operated as a result of use state determination mainly depending on physical conditions. However, the conditions for using the wireless communication device are not determined only by the physical state of the device, but the position of the device in the wireless communication system,
Includes conditions related to roles, etc. The technique disclosed in Patent Document 2 cannot cope with such distinction of use conditions of the wireless communication device.

The present invention has been made to solve the above-described problem, and has an object to set a security level without bothering a user in accordance with a use condition of a wireless communication device and to secure a necessary security level. To do.

In order to achieve the above object, the wireless communication device of the present invention uses the security level in a wireless communication device capable of setting the type and security level of the wireless communication service and communicating with the counterpart device. Setting storage means that can be set and stored according to the conditions, display means that can display a screen according to a plurality of operation procedures when selecting whether communication with the counterpart device is possible, and On the screen displayed by the display unit, the communication unit can perform communication with the counterpart device, and the operation procedure is selected from the plurality of types according to the security level stored in the setting storage unit. The communication means is controlled to connect to the counterpart device in response to a connection request when selection is made to allow communication. And a control unit which can, said communication means, said setting memory means, said comprising a display means and said control means is provided housing, wherein the housing is a plurality of parts which are connected in a state which is movable to each other An operating means provided in at least one of the plurality of parts of the housing, and a first positional relationship in which the plurality of parts of the housing cannot operate the operating means or the operating means And a detection unit that can detect which of the second positional relationships can be operated, wherein the setting storage unit includes a plurality of portions of the housing in the first positional relationship. When the detection means detects that the security level is set to a relatively high level, and when the detection means detects that the plurality of portions of the housing are in the second positional relationship, the security level is set. Characterized in that it is possible to set the bell relatively low level.

The wireless communication method of the present invention is the wireless communication method in which the first wireless communication device and the second wireless communication device communicate with each other by setting the type and security level of the wireless communication service. A screen is displayed according to a plurality of operation procedures when setting and storing according to use conditions and selecting whether or not mutual communication is possible in response to a connection request, and the plurality according to the stored security level. When the operation procedure is selected from the above and the selection is made to enable communication on the displayed screen, the first wireless communication device and the second wireless communication device are mutually connected , and the first The housing of the wireless communication device or the second wireless communication device is composed of a plurality of parts connected in a mutually movable state, and at least of the plurality of parts of the housing The operation means is provided in one part, and the plurality of parts of the housing are either in the first positional relationship in which the operation means cannot be operated or in the second positional relationship in which the operation means can be operated. The security level is set to a relatively high level when the plurality of portions of the housing are detected to be in the first positional relationship, and the plurality of portions of the housing are The security level is set to a relatively low level when it is detected that a positional relationship exists .

According to the present invention, the wireless communication device is configured such that the wireless communication device selects any one of a plurality of operation procedures according to the security level set and stored according to the use condition of the wireless communication device. It is possible to set the security level without bothering the user according to the use conditions and to secure the necessary security level.

1 is an external view of a mobile communication terminal that is a wireless communication apparatus according to an embodiment of the present invention. The block diagram of the portable communication terminal which concerns on the Example of this invention. (A), (b) and (c) are respectively a positional relationship between the first housing and the second housing of the mobile communication terminal according to the embodiment of the present invention, presence or absence of a predetermined operation, and asymmetric with the counterpart device. The figure which illustrates the setting of the security level of BT communication according to this condition as a use condition of role assignment. The flowchart explaining the 1st operation example of a connection request process when a security level is set to the portable communication terminal which concerns on the Example of this invention. The figure which illustrates the screen which the portable communication terminal which concerns on the Example of this invention displays during a connection process. The figure which illustrates the screen which the portable communication terminal which concerns on the Example of this invention asks for connection confirmation. The flowchart explaining the 2nd operation example of a connection request process when a security level is set to the portable communication terminal which concerns on the Example of this invention. The figure which illustrates the screen which the portable communication terminal which concerns on the Example of this invention asks for authentication with the other party device. The flowchart explaining the 3rd operation example of a connection request process when a security level is set to the portable communication terminal which concerns on the Example of this invention.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. FIG. 1 is an external view of a mobile communication terminal 1 that is a wireless communication apparatus according to Embodiment 1 of the present invention. The mobile communication terminal 1 is the first
The casing 11 and the second casing 12 are connected to each other so as to be openable and closable. FIG. 1 shows a first housing 1
The state where 1 and the 2nd housing | casing 12 opened mutually is represented seeing from the user side (front side).
However, the casing configuration of the mobile communication terminal 1 is not limited to the so-called folding type as shown in FIG.

A display unit 14 made of, for example, a liquid crystal device is attached to the first housing 11. The display unit 14 can display a text or an image, and the mobile communication terminal 1 uses the display unit 14 to display an application with screen display (for example, e-mail transmission / reception, web page browsing, phone book creation and browsing, etc.). Can be executed. A receiver 15 is attached to the first housing 11. A transmitter 16 is attached to the second housing 12. The mobile communication terminal 1 can be used for voice calls by including the receiver 15 and transmitter 16.

An operation unit 17 (represented by a dashed frame) is attached to the second housing 12 and includes a plurality of operation keys. When an operation key belonging to the operation unit 17 is operated, the mobile communication terminal 1 can be activated, stopped, or a text or an operation command can be input. All of the display unit 14, the reception unit 15, the transmission unit 16, and the operation unit 17 described above function as a human interface unit of the mobile communication terminal 1.

FIG. 2 is a block diagram of the mobile communication terminal 1. The mobile communication terminal 1 includes an open / close detection unit 18. The opening / closing detection unit 18 includes, for example, a magnet provided at any position on the front side of the first casing 11 and the front side of the second casing 12, and the first casing 11 and the second casing 12 are connected to each other. The magnetic sensing element is provided at a position facing the magnet when the magnets are closed.

The mobile communication terminal 1 includes an antenna 19 and a transmission / reception unit 20 and can transmit and receive radio waves with a mobile communication base station (not shown). The mobile communication terminal 1 includes a voice interface unit 2
1. Control unit 22, random access memory (RAM) 23, read-only memory (ROM)
) 24 and a storage unit 25.

Open / close detection unit 18, transmission / reception unit 20, voice interface unit 21, RAM 23, ROM 2
4, the storage unit 25, and the display unit 14 and the operation unit 17 described with reference to FIG. 1 are connected to the control unit 22 through, for example, a common bus, and are monitored and controlled by the control unit 22. The control unit 22 is configured by a single processing device such as a microprocessor or a combination of a plurality of chips. Note that the main components of the portable communication terminal 1 (described above and those described later) are connected to the control unit 22 via, for example, a common bus or to each other as shown in FIG.

The RAM 23 is a memory that is used by the control unit 22 to read and write a required program or data as needed to realize the functions of the mobile communication terminal 1. The ROM 24 is a memory in which a program or data is written in advance. The storage unit 25 is a non-volatile memory in which data written by the control unit 22 is retained even when the power is turned off, and is configured by, for example, a hard disk, a non-volatile semiconductor memory, or the like.

In the case of a voice call, an encoded voice signal transmitted from the other party through the base station is received by the transmitting / receiving unit 20 via the antenna 19 and subjected to processing such as demodulation and error correction decoding. In the unit 21, it is converted into an analog voice signal and reproduced from the receiver unit 15. The voice collected by the transmitter 16 is converted into a digital voice signal by the voice interface unit 21, and after being subjected to error correction coding, modulation and amplification by the transmission / reception unit 20, it is transmitted from the antenna 19 to the base station. .

In the case of data communication, a data signal transmitted from the other party through the base station is received by the transmitting / receiving unit 20 via the antenna 19 and subjected to processing such as demodulation and error correction,
It is sent to the control unit 22 and written in the RAM 23 or displayed on the display unit 14. Data input from the operation unit 17 or read from the RAM 23 is transmitted to the transmission / reception unit 2.
After being subjected to error correction coding, modulation and amplification at 0, it is transmitted from the antenna 19 to the base station.

The mobile communication terminal 1 includes a BT transceiver unit 27, a BT antenna 28, and a BT setting unit 29. When the mobile communication terminal 1 faces a counterpart device having a BT transmission / reception function, the BT transmitter / receiver 27 can perform wireless communication with the counterpart device via the BT antenna 28 according to the BT standard.

The BT setting unit 29 sets the security level of BT communication according to the use conditions of the mobile communication terminal 1 as described later, and stores the setting result data in the storage unit 25, for example.
The BT setting unit 29 may be configured to be included in the control unit 22. The BT setting unit 29
The T transmission / reception unit 27 may be included.

FIG. 3 is a diagram exemplifying setting of the security level of BT communication in accordance with the use conditions of the mobile communication terminal 1. FIG. 3A shows an example of setting the security level when the positional relationship between the first housing 11 and the second housing 12 (either closed or open) is selected as a use condition. Represent.

When the open / close detection unit 18 detects that the first housing 11 and the second housing 12 are open from each other, the BT setting unit 29 sets a relatively low security level. When the open / close detection unit 18 detects that the first housing 11 and the second housing 12 are closed, the BT setting unit 2
9 sets a relatively high security level. In the latter case, since it is estimated that the mobile communication terminal 1 is not actively used, the security level is set to be relatively high.

FIG. 3B shows an example of setting a security level when selecting whether or not a predetermined operation has been performed via the operation unit 17 as a use condition. The predetermined operation is an operation for starting an application such as browsing a website or sending / receiving an e-mail. When the control unit 22 is executing such an application, than when it is not executing,
The possibility that the BT communication is being executed is low. Therefore, as long as the predetermined operation is not performed, the BT setting unit 29 sets a relatively low security level. When the predetermined operation is performed, the BT setting unit 29 sets a relatively high security level.

FIG. 3C shows an example of setting a security level when a role when a mutually asymmetric role is assigned to a counterpart device in the BT communication service is selected as a use condition. For example, AVRCP (Audio Video Remote Con
In the service profile called “trol Profile”, the role of CT (Controller) that mainly transmits data and the TG (Target) that mainly receives data
Roles are defined.

Therefore, when it is necessary to strengthen the security on the transmission side from the reception side, the BT setting unit 29 sets a relatively high security level when the AVRCP-CT is assigned to the mobile communication terminal 1, and the AVRCP- When a TG is assigned, a relatively low security level is set.

As described above, A2DP-SRC and A2DP- are defined as a role mainly responsible for the data transmission side and a role mainly responsible for the data reception side for each service of BT communication.
SNK, OPP-Client and OPP-Server, BIP-Client and BIP
-Server, DUN-GW and DUN-GT, HFP-AG and HFP-HF.

Note that the roles of the transmission side and the reception side and the relative level of the security level do not always have a fixed correspondence. When the security on the receiving side needs to be strengthened from the sending side, the security on both the sending side and the receiving side needs to be strengthened, and the case where neither the sending side nor the receiving side needs to do so is considered. Depending on each case, a relatively high or low security level can be set for a role having an asymmetric relationship.

In addition, a security level can be set for each combination of a plurality of use conditions described above. For example, when an operation for starting transmission / reception of an e-mail is performed with the first housing 11 and the second housing 12 opened, it is conceivable to set a relatively high security level.

FIG. 4 is a flowchart for explaining a first operation example of the connection request process in the mobile communication terminal 1 in which the security level of BT communication is set as described above. After starting the processing in a state where the connection with the counterpart device of the BT communication is not performed (START), the control unit 22 passes through the BT antenna 28 and the BT transmission / reception unit 27 or through the operation in the operation unit 17. Wait until a connection request for BT communication with the apparatus is made ("S" in step S101).
NO ").

When there is a connection request (“YES” in step S101), the control unit 22 refers to the security level setting data of the BT communication stored in the storage unit 25 by the BT setting unit 29, and a relatively low security level is set. If so ("LO" in step S103), the BT transmission / reception unit is permitted to connect to the BT communication (step S105). At this time, the control unit 22 displays a screen as shown in FIG. The screen of FIG. 5 shows the device name (Device name) of the counterpart device, the service name to be connected, and being connected. When the connection is completed, the connection request processing and the screen display of FIG. 5 are finished (END), but before that, the “CANCEL” key at the bottom left of the screen (a so-called soft key corresponding to a specific operation key of the operation unit 17). When is operated, the connection operation is canceled.

On the other hand, when the security level setting data of the BT communication referred to by the control unit 22 is relatively higher (“HI” in Step S103), the control unit 22 asks the user for confirmation of connection availability. Is displayed on the display unit 14 (step S107). An example of the confirmation screen is shown in FIG. Of the authentication models defined by BT, JustWorks and Number
For each model of ricComparison, it is possible to classify security levels according to the presence or absence of such a confirmation screen.

The screen in FIG. 6 shows the device name (Device name) and the service name of the counterpart device, and asks for confirmation of the connection. When the soft key “Yes” at the lower left of the screen is operated (Step S
109 (“YES”), the control unit 22 permits the BT transmission / reception unit to connect to the BT communication, and displays the screen shown in FIG. 5 on the display unit 14 (step S105). On the other hand, when the soft key “No” in the lower right of the screen in FIG. 6 is operated (“NO” in Step S109), the control unit 2
2 terminates the connection request processing without connecting to the counterpart device (END).

FIG. 7 is a flowchart for explaining a second operation example of the connection request process in the mobile communication terminal 1 in which the security level of BT communication is set. After the start of processing (START), the processing in steps S201 to S205 is the same as the processing in steps S101 to S105 in FIG.

When the security level setting data of the BT communication referred to by the control unit 22 in step S203 is relatively higher (“HI” in step S203), the control unit 22 uses the user for mutual authentication with the counterpart device. Is displayed on the display unit 14 (step S207). An example of the confirmation screen is shown in FIG.

The screen of FIG. 8 displays the device name (Device name) of the counterpart device and, for example, a 6-digit number for authentication, and requests authentication (which has a meaning of defense against a man-in-the-middle attack). When the soft key “Yes” at the lower left of the screen is operated (“YES” in step S209), the control unit 2
2 permits the BT transmission / reception unit to connect to the BT communication, and displays the screen shown in FIG. 5 on the display unit 14 (step S205). On the other hand, when the soft key “No” at the lower right of the screen in FIG. 8 is operated (“NO” in Step S209), the control unit 22 ends the connection request process without performing the connection with the counterpart device (END). .

FIG. 9 is a flowchart for explaining a third operation example of the connection request process in the mobile communication terminal 1 in which the security level of BT communication is set. After the start of processing (START), the processing in steps S301 to S305 is the same as the processing in steps S101 to S105 in FIG.

When the security level setting data of the BT communication referred to by the control unit 22 in step S303 is relatively higher (“HI” in step S303), the control unit 22 displays the screen shown in FIG. Is displayed on the display unit 14 (step S307). This is the same as the processing in step S107 in FIG. In FIG. 6, the soft key “
When “No” is operated (“NO” in step S309), the control unit 22 ends the connection request processing without performing connection with the counterpart device (END).

On the other hand, when the soft key “Yes” in the lower left of the screen in FIG. 6 is operated (step S309).
"YES"), the control unit 22 displays the screen shown in FIG. 8 on the display unit 14 for mutual authentication with the counterpart device (step S311). This is the same as the processing in step S207 in FIG. The subsequent processing in step S313 is the same as the processing in step S209 in FIG.

In the third operation example described above, it is possible to enhance the effect of preventing erroneous operation by requiring two-step confirmation of connection and authentication. In the first to third operation examples, the operation procedure for permitting connection without displaying a confirmation screen in response to a connection request when a relatively low security level is set has been described. The present invention is not limited to this. For example, the procedure for displaying the connection confirmation screen and the procedure for displaying the authentication confirmation screen may correspond to the setting of the low security level and the high security level, respectively. Alternatively, one of these procedures and the procedure for displaying both the connection and authentication confirmation screens may correspond to the setting of the low security level and the high security level, respectively.

According to the embodiment of the present invention described above, it is possible to set a security level without a user's operation in accordance with the use condition of the mobile communication terminal and to secure a necessary security level.

The conditions such as the shape, configuration, connection, function, etc. of the mobile communication terminal described in the above embodiments are merely examples, and various modifications can be made without departing from the scope of the present invention. For example, the mechanism for opening and closing the casing of the mobile communication terminal may be a sliding type instead of a folding type. Although BT is given as an example of a wireless communication system, the present invention can also be applied to a wireless communication apparatus using a system other than BT.

DESCRIPTION OF SYMBOLS 1 Mobile communication terminal 11 1st housing | casing 12 2nd housing | casing 14 Display part 15 Reception part 16 Transmission part 17 Operation part 19 Antenna 20 Transmission / reception part 21 Voice interface part 22 Control part 23 RAM
24 ROM
25 Storage unit 27 BT transmission / reception unit 28 BT antenna 29 BT setting unit

Claims (4)

In a wireless communication device that can communicate with a counterpart device by setting the type and security level of the wireless communication service,
Setting storage means capable of setting and storing the security level in accordance with conditions of use;
Display means capable of displaying a screen according to a plurality of operation procedures when selecting whether or not communication with the counterpart device is possible;
A communication means capable of performing communication with the counterpart device;
The operation procedure is selected from the plurality of ways according to the security level stored in the setting storage means, and the connection request is responded when selection is made to enable communication on the screen displayed by the display means. Control means capable of controlling the communication means to connect to the counterpart device;
A housing provided with the communication means, the setting storage means, the display means and the control means ;
With
The housing is composed of a plurality of parts connected in a mutually movable state,
The operating means provided in at least one part of the plurality of parts of the casing and the first positional relationship in which the plurality of parts of the casing cannot operate the operating means or the operating means A detecting means capable of detecting which of the second positional relations is possible;
The setting storage means sets the security level to a relatively high level when the detection means detects that a plurality of portions of the housing are in the first positional relationship, and the plurality of portions of the housing The wireless communication apparatus according to claim 1, wherein the security level can be set to a relatively low level when the detection unit detects that the second positional relationship is in the second positional relationship . In a wireless communication device that can communicate with a counterpart device by setting the type and security level of the wireless communication service,
Setting storage means capable of setting and storing the security level in accordance with conditions of use;
Display means capable of displaying a screen according to a plurality of operation procedures when selecting whether or not communication with the counterpart device is possible;
A communication means capable of performing communication with the counterpart device;
The operation procedure is selected from the plurality of ways according to the security level stored in the setting storage means, and the connection request is responded when selection is made to enable communication on the screen displayed by the display means. Control means capable of controlling the communication means to connect to the counterpart device;
A housing provided with the communication means, the setting storage means, the display means and the control means;
With
When the type of the wireless communication service is set, when a role that is asymmetric with the counterpart device is assigned,
The setting storage means sets the security level to a relatively high level when assigned the first role among the mutually asymmetric roles, and sets the second role among the mutually asymmetric roles. The wireless communication device can set the security level to a relatively low level when assigned. In a wireless communication method in which a first wireless communication device and a second wireless communication device communicate with each other by setting the type and security level of a wireless communication service,
Set and store the security level according to the conditions of use,
In response to a connection request, display the screen according to a plurality of operation procedures when selecting whether to allow mutual communication,
In accordance with the stored security level, select an operation procedure from the plurality of ways,
The first wireless communication device and the second wireless communication device are connected to each other when a selection is made to enable communication on the displayed screen ;
The housing of the first wireless communication device or the second wireless communication device is composed of a plurality of parts connected in a movable state, and operates on at least one of the plurality of parts of the housing. Means for detecting whether the plurality of portions of the casing are in a first positional relationship in which the operating means cannot be operated or in a second positional relationship in which the operating means can be operated. ,
The security level is set to a relatively high level when it is detected that a plurality of portions of the housing are in the first positional relationship, and the plurality of portions of the housing are in the second positional relationship. A wireless communication method characterized in that the security level is set to a relatively low level when an error is detected . In a wireless communication method in which a first wireless communication device and a second wireless communication device communicate with each other by setting the type and security level of a wireless communication service,
Set and store the security level according to the conditions of use,
In response to a connection request, display the screen according to a plurality of operation procedures when selecting whether to allow mutual communication,
In accordance with the stored security level, select an operation procedure from the plurality of ways,
The first wireless communication device and the second wireless communication device are connected to each other when a selection is made to enable communication on the displayed screen ;
When the type of the wireless communication service is set, when the first wireless communication device and the second wireless communication device are each assigned a role that is asymmetric to each other,
The security level is set to a relatively high level for the wireless communication device assigned the first role among the roles that are asymmetric to each other, and the second role among the roles that are asymmetric to each other is assigned A wireless communication method, wherein the security level is set to a relatively low level in a wireless communication device.

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