JP2008085728A - Portable radio terminal, and key lock setting cancellation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable radio terminal capable of improving certainty and operability relating to a key lock operation. <P>SOLUTION: In the case of detecting that the portable radio terminal 100 has moved from a communication area to the outside of the communication area or it has shifted from a call origination non-regulated state to a call origination regulated state in a communication area decision part 21 or a call origination regulation decision part 23, a key lock state is automatically set in a key lock setting/cancellation part 22. In the case of detecting that it has moved from the outside of the communication area into the communication area or it has shifted from the call origination regulated state to the call origination non-regulated state in the communication area decision part 21 or the call origination regulation decision part 23, the home station of a radio communication network is inquired about the presence/absence of a remote key lock setting request in a home station inquiry part 24. The key lock state is continued as it is when it is returned from the home station that the remote key lock setting request is present, but the key lock state is automatically canceled in the key lock setting/cancellation part 22 when it is not returned that the remote key lock setting request is present or when it is returned that the setting request is not present. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable wireless terminal and a key lock setting releasing method.

2. Description of the Related Art Conventionally, portable wireless terminals such as mobile phones have been provided with a key lock function for disabling key input so that they are not used without permission when lost due to theft or misplacement. As a method for setting the key lock, a method for locking the key by a user operation, or, for example, Japanese Patent Application Laid-Open No. 2004-343677 “Mobile phone and auto-dial lock method and program therefor” Automatic key lock regardless of user's operation, or Japanese Patent Application Laid-Open No. 2000-151798, “Mobile phone with dial / data lock mechanism”, Japanese Patent Application Laid-Open No. 2001-8270, for example. A device that is key-locked by a remote operation via a communication path, such as Japanese Laid-Open Patent Publication “Mobile Phone”, Japanese Patent Application Laid-Open No. 2001-16324 of Japanese Patent Application Laid-Open No. 2001-16324, and the like (hereinafter referred to as “remote key lock”) Etc. are open to the public.
Japanese Patent Laying-Open No. 2004-343677 (pages 13-14) JP 2000-151798 A (page 5-6) Japanese Patent Laying-Open No. 2001-8270 (page 6-8) JP 2001-16324 A (page 2-3)

  However, as a problem in the case of remote key lock in which key lock is performed by remote operation through the communication path as described above, when a user attempts to perform remote key lock, a portable wireless terminal that wants to perform key lock Is out of communication range (environment incapable of communication), remote key lock cannot be performed.

  In addition, in the case of a method of automatically performing key lock (for example, a method of key lock when no operation is continued for a certain period of time), the key lock is applied more than necessary regardless of the user's intention. Since it takes time to release the key lock (usually, it is necessary to input a password or the like to release the key lock), there is a problem in terms of usability.

  For this reason, in consideration of the above-described problems, a key lock implementation method in which both security and user-friendliness are compatible is important. Accordingly, an object of the present invention is to provide a portable wireless terminal and a key lock setting releasing method capable of improving certainty and operability regarding the key lock operation of the portable wireless terminal.

  In order to solve the above-described problems, the portable wireless terminal and the key lock setting releasing method according to the present invention employ the following characteristic configuration.

(1) In a portable wireless terminal that performs wireless communication using a wireless communication network, communication range determination means for determining whether the portable wireless terminal exists within the communication range or outside the communication range, and the communication range determination Key lock setting / releasing means for setting the portable wireless terminal in a key lock state based on the determination result of the means or releasing the set key lock, and the portable wireless terminal by the communication area determining means A portable wireless terminal that is automatically set to a key lock state by the key lock setting / release means when it is detected that has moved from the communication range to the outside of the communication range.
(2) In a portable wireless terminal that performs wireless communication using a wireless communication network, based on a transmission restriction determination unit that determines whether or not the portable wireless terminal is in a transmission restriction state, and a determination result of the transmission restriction determination unit Key lock setting / releasing means for setting the portable wireless terminal to a key-locked state or releasing the set key lock, and the portable wireless terminal is not regulated for transmission by the transmission restriction determining means. A portable wireless terminal that automatically sets the key lock state by the key lock setting / release means when it is detected that the state has shifted to the outgoing call restriction state.
(3) Sending from the state in which the mobile wireless terminal is not regulated by the call regulation determining unit after the mobile zone determining unit detects that the mobile wireless terminal has moved from the communication range to the outside of the communication range It is only after the transition to the restricted state has been detected until the predetermined key lock setting time elapses or if the outgoing call restricted state continues, The portable wireless terminal according to (1) or (2), wherein the key lock state is automatically set by the key lock setting / release means.
(4) In a portable wireless terminal that performs wireless communication using a wireless communication network, a communication area determination unit that determines whether the portable wireless terminal exists within the communication area or outside the communication area, and the portable wireless terminal Home station inquiry means for inquiring of the home station of the wireless communication network whether or not there is a remote key lock setting request for the portable wireless terminal during a period in which the mobile communication terminal exists outside the communication area, When it is detected that the portable wireless terminal has moved from the outside of the communication area to the communication area, the home station inquiry means determines whether or not there is a remote key lock setting request for the portable wireless terminal. A portable wireless terminal that makes inquiries to the station.
(5) In a portable wireless terminal that performs wireless communication using a wireless communication network, transmission restriction determination means for determining whether or not the portable wireless terminal is in a transmission restricted state, and the portable wireless terminal is in a transmission restricted state. Home station inquiry means for making an inquiry to the home station of the wireless communication network whether or not there is a request for setting remote key lock for the portable wireless terminal during the specified period. When it is detected that the state has shifted to a state in which outgoing calls are not restricted, the home station inquiry means informs the home station of the wireless communication network whether or not there has been a remote key lock setting request for the portable wireless terminal. Mobile wireless terminal that inquires about.
(6) The mobile wireless terminal has been restricted from being out of the transmission restriction state after the mobile wireless terminal has been detected to have moved from outside the communication area to the communication area by the communication area judgment means. When it has been detected that the mobile phone has been switched to a non-transmission state and has been in the communication area until the predetermined key lock release time elapses, or a state in which transmission is not restricted continues First, the portable wireless terminal according to (4) or (5), wherein the home station inquiry means inquires of the home station of the wireless communication network whether or not a remote key lock setting request has been made to the portable wireless terminal.
(7) The portable wireless terminal according to any one of (4) to (6), wherein the home station inquiry means uses means for registering a location of the portable wireless terminal with respect to the home station of a wireless communication network station.
(8) Key lock setting / cancellation means for setting the portable wireless terminal to a key lock state or releasing the set key lock state based on the determination result of the communication range determination means or the transmission restriction determination means And that the home station of the wireless communication network inquired by the home station inquiry means has made a remote key lock setting request for the portable wireless terminal until a predetermined response waiting time elapses. When the message is not returned or when it is returned that there is no remote key lock setting request, the key lock setting / release means automatically releases the key lock state (4) to (7 ) Any portable wireless terminal.
(9) Key lock setting / cancellation means for setting the portable wireless terminal to the key lock state or releasing the set key lock state based on the determination result of the communication area determination means or the transmission restriction determination means And that the home station of the wireless communication network inquired by the home station inquiry means has made a remote key lock setting request for the portable wireless terminal until a predetermined response waiting time elapses. When returned, the key lock setting / canceling means suppresses the operation of releasing the key lock state, and continues the key lock state, according to any one of the above (4) to (7).
(10) A remote key lock setting request server for storing, in place of the home station, a remote key lock setting request for each portable wireless terminal in the wireless communication network, and the portable wireless terminal using the home station inquiry means An inquiry for inquiring whether or not there has been a request for setting a remote key lock for the remote key is made to the remote key lock setting request server instead of the home station of the wireless communication network, and the remote key that has received the inquiry The portable wireless terminal according to any one of (4) to (9), wherein the presence or absence of a remote key lock setting request for the portable wireless terminal is returned from the lock setting request server.
(11) A portable wireless terminal in which both the portable wireless terminal of (1) to (3) and the portable wireless terminal of (4) to (10) are integrated into one device.
(12) Any one of the above (1) to (11), wherein the portable wireless terminal has a wireless communication system corresponding to any one of the WCDMA system, PDC system, PHS system, and wireless LAN / WAN system Portable wireless terminal.
(13) A key lock setting release method in a portable wireless terminal that performs wireless communication using a wireless communication network, and determines whether the portable wireless terminal exists within a communication area or out of a communication area, and performs communication A key lock setting release method that automatically sets a key lock state when it is detected that the user has moved out of the communication range from the area.
(14) A key lock setting release method in a portable wireless terminal that performs wireless communication using a wireless communication network, wherein it is determined whether or not the portable wireless terminal is in a transmission restriction state, and from a state where transmission restriction is not performed A key lock setting release method that automatically sets the key lock state when it is detected that the state has shifted to the outgoing call restriction state.
(15) A key lock setting releasing method in a portable wireless terminal that performs wireless communication using a wireless communication network, wherein it is determined whether the portable wireless terminal exists within a communication area or out of a communication area, and communication A key lock setting releasing method for inquiring whether a remote key lock setting request for the portable wireless terminal has been made to a home station of a wireless communication network when it is detected that the mobile station has moved from outside the service area to the communication area.
(16) A key lock setting release method in a portable wireless terminal that performs wireless communication using a wireless communication network, wherein it is determined whether or not the portable wireless terminal is in a transmission restriction state, and transmission restriction is performed from the transmission restriction state. A key lock setting releasing method for inquiring whether or not a remote key lock setting request for the portable wireless terminal has been made to a home station of a wireless communication network when it is detected that the mobile station has shifted to a non-operating state.
(17) A response in advance that the home station of the wireless communication network inquiring whether or not there has been a remote key lock setting request for the portable wireless terminal is that there has been a remote key lock setting request for the portable wireless terminal. If it has not been returned until the waiting time has passed, or if it has been returned before the response waiting time has passed, it is said that there was no remote key lock setting request for the portable wireless terminal, The key lock setting releasing method according to (15) or (16), wherein the key lock state is automatically released.
(18) A response in which it is determined in advance from the home station of the wireless communication network that has inquired whether there has been a remote key lock setting request for the portable wireless terminal, from the home station of the wireless communication network. The key lock setting releasing method according to the above (15) or (16), in which the operation for releasing the key lock state is suppressed and the key lock state is continued when it is returned before the waiting time elapses.

  According to the portable wireless terminal and the key lock setting releasing method of the present invention, the following effects can be obtained.

  First, based on the wireless communication state of the mobile wireless terminal (whether it is within communication range or out of communication range), the key lock state is automatically set only when the mobile wireless terminal transitions from the communication range to the outside of the communication range. It is possible to continue the key lock state during a period outside the communication range, so that the remote key can be used for portable wireless terminals outside the communication range, which was a problem with the conventional remote key lock method. The problem that the lock cannot be performed can be solved.

  Second, in the case of a method of automatically setting a key lock state regardless of the user's intention (for example, a method of automatically key locking when a non-operation state continues for a certain period of time). As described above, the key lock is applied more than necessary, and it takes time to release the key lock, which is problematic in terms of usability. However, according to the present invention, while the portable wireless terminal is in the communication range, the remote key lock similar to the prior art can be performed, so that the automatic key lock is suppressed while the remote key lock is Automatic key lock can be performed only when it exists outside the communication area where key lock cannot be performed. Thus, it is possible to provide the user with a minimum necessary automatic key lock function by suppressing unnecessary automatic key lock operation according to the wireless communication state. Can be improved.

  Thirdly, when returning to the communication range, it is determined whether or not the key lock needs to be continued by the remote key lock setting request received during the period of being outside the communication range. Inquiries to the station or remote key lock setting request server, if there is no response that the key lock is required, or if there is a response that the key lock is not required (i.e. When there is no remote key lock setting request for the mobile wireless terminal), the key lock is automatically released when returning to the communication range, so it takes less time to release the key lock state. Usability related to key lock can be improved.

  Hereinafter, preferred embodiments of a portable wireless terminal and a key lock setting releasing method according to the present invention will be described with reference to the accompanying drawings.

(Characteristics of the invention)
Prior to the description of the embodiments of the present invention, first, the main features of the present invention will be described. The present invention is characterized in that the key lock of the mobile communication terminal is automatically performed in accordance with the wireless communication state of the mobile communication terminal. Specifically, the mobile communication terminal detects movement from the communication area to the outside of the communication area, and conversely, information indicating whether or not a remote key lock setting request has been made. In response to this, it is characterized in that automatic key lock is performed or released.

  That is, in the mobile radio terminal according to the present invention, in order to solve the problem that remote key lock cannot be performed when the mobile phone is outside the communication range (in an environment where communication is not possible), As shown by the arrow (A) in FIG. 1, when the mobile communication terminal moves from the communication range to the out-of-service state, the mobile radio terminal is automatically locked and released. Key input other than PIN code key input is invalidated. FIG. 1 is an explanatory diagram for explaining an operation of automatically releasing the key lock in accordance with the location where the portable wireless terminal is present in the present invention.

  Here, as a method for determining whether or not the mobile wireless terminal is in a state outside the communication range, for example, as described in the 3GPP TS25.133 standard, the reception signal level of the common channel is equal to or longer than a certain time. In addition, it is possible to use an existing method such as a method of determining whether or not a predetermined threshold value is exceeded.

  Further, in order to solve the problem that it takes time to release the key lock when the key lock is automatically performed, in the portable wireless terminal according to the present invention, as shown by an arrow (B) in FIG. In addition, when moving from outside the communication area to within the communication area with the key locked state, whether the remote key lock setting request for the portable wireless terminal was made during movement outside the communication area is sent to the home station of the wireless communication network. If no inquiry or remote key lock setting request has been made, the key lock is automatically released.

  Here, the home station of the wireless communication network has a function of storing the presence / absence of a remote key lock setting request for each portable wireless terminal in addition to storing the location registration information of each portable wireless terminal. It is possible to determine whether or not the key lock of the portable wireless terminal can be released by inquiring the home station whether or not there is a remote key lock setting request. The remote key lock setting request for storing the presence / absence of the remote key lock setting request for each portable wireless terminal on the wireless communication network side instead of the home station as an inquiry destination for inquiring whether or not the remote key lock setting request exists Whether or not it is necessary to prepare a server, communicate with this remote key lock setting request server triggered by returning to the communication range, and lock the key based on whether there is a remote key lock setting request You may make it use the method of inquiring.

  In addition, when the mobile wireless terminal returns to the communication area, it is necessary to register the location with the home station of the wireless communication network in order to notify the wireless communication network that the mobile communication terminal has returned to the communication area. If a remote key lock setting request is not transmitted from the wireless communication network to the portable wireless terminal within a predetermined time, it is determined that the key lock setting is unnecessary. May be. In the following description, a description will be made using a method of inquiring the presence / absence of a remote key lock setting request to the home station of the wireless communication network when moving within the communication range.

  As a method for determining whether or not the portable wireless terminal is in a communication range state, specifically, as described in 3GPP TS 25.304, the reception signal level of the common channel is equal to or higher than a predetermined value. It is possible to use an existing method such as determining whether or not a communication cell of a base station is detected.

  Similarly, in order to solve the problem that it takes time to release the key lock when the key lock is automatically performed, when the portable wireless terminal exists in the communication area, Similarly, from the viewpoint that remote key lock can be performed, automatic key lock unrelated to the user's intention is prevented from being performed.

(Configuration of Example)
A configuration example of a portable wireless terminal according to the present invention will be described with reference to FIG. FIG. 2 is a block configuration diagram showing an example of a block configuration of a portable wireless terminal according to the present invention. 2 inputs a radio unit 10 including an antenna for transmitting and receiving radio signals, a control unit 20 that controls the overall operation of the mobile radio terminal 100, and instructions from the user to the mobile radio terminal 100. Or at least a main body operation unit 30 that outputs information for the user from the portable wireless terminal 100.

  The control unit 20 determines whether the mobile wireless terminal 100 is in the communication area, out of the communication area, or moved from the communication area to the outside of the communication area, or conversely moved from the outside of the communication area to the communication area. Based on the determination result of the communication range determination unit 21 and the communication range determination unit 21 to be monitored periodically at a predetermined cycle using the wireless unit 10, or a setting / cancellation instruction from the user In accordance with the key lock setting / release unit 22 for setting the key lock state or releasing the set key lock state, and registering the position of each portable radio terminal, and remote key lock for each portable radio terminal. With respect to the home station of the wireless communication network that registers the presence / absence of the setting request, the mobile wireless terminal 100 is not connected to the mobile wireless terminal 100 during a period in which the mobile wireless terminal 100 exists outside the communication range. The home station inquiry unit 24 for inquiring whether there is septum keylock setting request, is at least comprise configure.

(Description of operation of the embodiment)
Next, key lock setting and key lock release operations in the portable wireless terminal 100 shown in FIG. 2 will be described.

  First, a key lock setting operation when the mobile wireless terminal 100 transitions from the communication range to the outside of the communication range will be described using the flowchart of FIG. FIG. 3 is a flowchart for explaining an example of the key lock setting operation of the portable wireless terminal according to the present invention. The step numbers described below represent numbers on the flowchart of FIG.

  When the communication range determination unit 21 of the control unit 20 of the portable wireless terminal 100 is currently in a communication range receiving a service by receiving a radio signal from a nearby base station (step S1), the base station Whether the reception level of the common channel transmitted from the mobile station 10 is periodically received by the wireless unit 10 and the reception level is continuously below a predetermined threshold value for a predetermined time or more. It is determined whether or not (step S2).

  Here, when the reception level does not continuously fall below the predetermined threshold for the predetermined time or longer (NO in step S2), the portable wireless terminal 100 is present within the communication range. And the state in which the reception level of the common channel is periodically monitored is continued, while the reception level is continuously below the predetermined threshold for the predetermined time or longer. (YES in step S2), it is determined that the user is moving out of the communication range, and the process proceeds to the next step S3.

  In step S3, it is determined whether or not a predetermined time has elapsed as a key lock setting timer T1 after determining that the vehicle has moved out of the communication range (step S3). If the time of the key lock setting timer T1 has not yet elapsed (NO in step S3), the communication range determination unit 21 of the control unit 20 uses the radio unit 10 to determine the base station that can transition to the communication range. The communication cell, that is, the communication cell of the base station in which the reception level of the common channel is larger than the predetermined threshold is searched (step S4). If a communication cell of a base station that can be shifted to within the communication area is detected (YES in step S4), it is determined that the cell has returned to the communication area, and the process proceeds to step S2 to determine whether or not it has moved outside the communication area. Return to the monitoring state.

  On the other hand, when the communication cell of the base station that can transit to the communication area is not detected (NO in step S4), it is determined that the state of being outside the communication area continues and the process returns to step S3. Until the time of the key lock setting timer T1 elapses, an operation for determining whether or not the key lock setting timer T1 is continuously outside the communication range is performed.

  When the time of the key lock setting timer T1 has elapsed since it was determined in step S2 that it has moved out of the communication range (YES in step S3), the key lock setting / release unit 22 of the control unit 20 is activated, Thereafter, the key input from the main body operation unit 30 is set to a key lock state in which all keys other than the key input of a password for unlocking the key lock are invalidated (step S5).

  Next, a key lock releasing operation when the portable wireless terminal 100 transitions from outside the communication range to the communication range will be described with reference to the flowchart of FIG. FIG. 4 is a flowchart for explaining an example of the key lock releasing operation of the portable wireless terminal according to the present invention. Note that the step numbers described below represent numbers on the flowchart of FIG.

  The communication range determination unit 21 of the control unit 20 of the portable wireless terminal 100 is currently not present in any communication cell of any base station and is outside the communication range not receiving a radio signal from the base station, And, when it is in the key lock setting state (step S11), using the wireless unit 10, the communication cell of the base station that can be periodically transitioned to the communication area at every predetermined period, that is, A search is made for a communication cell of a base station whose common channel reception level is larger than the predetermined threshold (step S12). If the communication cell of the base station that can be shifted into the communication area is not detected (NO in step S12), the search operation for the communication cell of the base station is continued.

  On the other hand, if a communication cell of a base station that can transition to the communication area is detected (YES in step S12), it is determined that the cell has moved to the communication area, and the process proceeds to the next step S13 to set a key lock. In a state where the reception level of the common channel is maintained, the wireless channel is set to a state in which radio signals can be transmitted to and received from the base station whose value is larger than the predetermined threshold (step S13).

  Next, it is determined whether or not a predetermined time has elapsed as a key lock release timer T2 after determining that the key has been moved within the communication range while maintaining the key lock setting state (step S14). If the time of the key lock release timer T2 has not yet elapsed (NO in step S14), the communication range determination unit 21 of the control unit 20 sets the reception level of the common channel transmitted from the base station at the radio unit 10. It is periodically received, and it is determined whether or not the reception level is continuously below a predetermined threshold value for a predetermined time or more (step S15).

  Here, when the reception level is continuously below the predetermined threshold for the predetermined time or longer (YES in step S15), the portable wireless terminal 100 is moving out of the communication range. It returns to step S12, and returns to the state which searches whether the communication cell of the base station which can be changed into a communication range is detected again.

  On the other hand, if the reception level does not continue below the predetermined threshold for the predetermined time or longer (NO in step S15), it is assumed that the state existing in the communication range continues. After the determination, the process returns to step S14, and an operation is performed to determine whether or not the terminal is in the communication range continuously until the time of the key lock release timer T2 elapses.

  When the time of the key lock release timer T2 has elapsed since it was determined in step S12 that the mobile phone has moved within the communication range (YES in step S14), the key lock setting / release unit 22 of the control unit 20 is activated and wireless The home station inquiry unit 24 inquires of the home station of the communication network whether or not a remote key lock setting request for the portable wireless terminal 100 has been made (step S16). When the portable wireless terminal 100 is out of the communication range, even if there is a remote key lock setting request for the portable wireless terminal 100, the portable wireless terminal 100 has not yet reached the portable wireless terminal 100. The remote key lock setting request for 100 is stored in the home station of the wireless communication network.

  The home station of the wireless communication network that has received the inquiry transmits a remote key lock setting request to the portable wireless terminal 100 when the remote key lock setting request for the portable wireless terminal 100 is stored.

  The home station inquiring unit 24 of the control unit 20 inquires of the home station of the wireless communication network about the presence or absence of a remote key lock setting request, and determines whether or not a predetermined time as a response waiting timer T3 has elapsed. (Step S17). If the time of the response waiting timer T3 has not yet elapsed (NO in step S17), it is next determined whether or not a remote key lock setting request has been returned from the home station of the wireless communication network (step S18). ).

  When the remote key lock setting request is not returned from the home station of the wireless communication network (NO in step S18), the communication area determining unit 21 of the control unit 20 is activated, and the base station is the same as in step S15. Whether the reception level of the common channel transmitted from the wireless unit 10 is periodically received by the wireless unit 10 and the reception level is continuously lower than a predetermined threshold value for a predetermined time or more. (Step S19). Here, when the reception level is continuously below the predetermined threshold for the predetermined time or more (YES in step S19), the portable wireless terminal 100 Is determined to be moving out of the communication area, and the process returns to step S12 to search again whether or not the communication cell of the base station capable of transitioning to the communication area is detected. To return to.

  On the other hand, if the reception level does not fall below the predetermined threshold for the predetermined time or longer (NO in step S19), it is assumed that the state existing in the communication range continues. After determining, returning to step S17, the home station inquiry unit 24 of the control unit 20 performs an operation of determining whether or not the response waiting timer T3 has elapsed.

  In step S16, after inquiring the home station of the wireless communication network whether there is a remote key lock setting request, the home station inquiry unit indicates that the time of the response waiting timer T3 has passed without returning the remote key lock setting request. 24 is determined (YES in step S17), the key lock setting / release unit 22 of the control unit 20 is activated, and the mobile radio terminal 100 that has not been reached during the period of being outside the communication range is detected. It is determined that there has been no remote key lock setting request, the key lock setting state is canceled, and the subsequent key input from the main body operation unit 30 is set to a valid state (step 20).

  If a remote key lock setting request is returned from the home station of the wireless communication network in step S18 (YES in step S18), that is, whether or not there is a remote key lock setting request to the home station of the wireless communication network. If a remote key lock setting request is returned from the home station of the wireless communication network between the time when the response wait timer T3 elapses after the inquiry, the remote key lock setting request from the home station inquiry unit 24 The key lock setting / release unit 22 notifies the key lock setting / canceling unit 22 of the occurrence of a key lock state in response to a remote key lock setting request, and the key lock setting / canceling unit 22 The locked state is maintained (step S21).

  The flowchart relating to the key lock releasing operation shown in FIG. 4 corresponds to the fact that the mobile wireless terminal 100 whose key lock has been released moves from the communication area to the outside of the communication area in the key lock setting operation shown in FIG. It is automatically activated only when the key lock state is set, and when the portable wireless terminal 100 for which the key lock is set by the remote key lock moves from the communication range to the outside of the communication range, Even if the portable wireless terminal 100 moves from outside the communication area to within the communication area, the key lock releasing operation shown in FIG. 4 is not activated, and the key lock state is maintained as it is.

  Further, in the key lock setting operation shown in FIG. 3, the automatically set key lock state is released when the mobile wireless terminal 100 whose key lock is released moves from the communication range to the outside of the communication range. As a case, in the flowchart relating to the key lock releasing operation shown in FIG. 4, the portable wireless terminal 100 to which the key lock is set moves from the outside of the communication range to the communication range without a remote key lock setting request. Accordingly, in addition to the case where the key lock state is automatically released, the key lock setting / release unit 22 of the control unit 20 that has received the user's password input from the main body operation unit 30 of the portable wireless terminal 100 is provided. It is also possible to cancel the key lock state when it is confirmed that the password is entered correctly.

(Other examples)
The portable wireless terminal and the key lock setting releasing method according to the present invention are not limited to the above-described embodiments, and various other embodiments can be applied. For example, the present invention can be applied to the following cases.

  First, the time of the key lock setting timer T1 described in the above embodiment is not limited to an arbitrary time other than 0, and may be 0. When the key lock setting timer T1 = 0, when the mobile wireless terminal 100 moves from the communication area to the outside of the communication area, the operation is automatically set to the key lock state immediately.

  Second, as in the first case, the time of the key lock release timer T2 described in the above embodiment is not limited to any time other than 0, and may be 0. When the key lock release timer T2 = 0, even when the mobile radio terminal transitions from the outside of the communication area to the communication area, the home station inquiry unit 24 immediately releases the key lock for the home station of the wireless communication network. This is an operation for inquiring whether or not it is acceptable (that is, whether or not a remote key lock setting request exists).

  Third, the response waiting timer T3 described in the above-described embodiment may be unnecessary depending on circumstances. That is, in step S17 described in the above-described embodiment, the home station inquiry unit 24 inquires of the home station of the wireless communication network about the presence or absence of a remote key lock setting request until the time of the response waiting timer T3 elapses. When the remote key lock setting request is not returned from the home station of the wireless communication network, the remote key lock setting request for the portable wireless terminal 100 that has not been reached during the period of being outside the communication range. It is determined that the key lock has not occurred, and the operation for canceling the set state of the key lock is performed.

  However, when there is an inquiry from the portable radio terminal 100 to the home station of the wireless communication network regarding whether or not there is a request for setting of the remote key lock, the home station of the wireless communication network requests the setting of the remote key lock to the portable wireless terminal 100 It may be possible to immediately return whether there is a remote key lock setting request including not only when the remote key lock setting request is not received. As described above, when the remote key lock setting request for the portable wireless terminal 100 is returned immediately, the response waiting timer T3 may not be used in some cases.

  Fourthly, in the above-described embodiment, a case has been described in which the remote key lock setting request of each portable wireless terminal is stored in the home station of the wireless communication network. However, the remote key lock setting is set on the wireless communication network side. A dedicated remote key lock setting request server that stores a request for each portable wireless terminal is installed, and the home station inquiry unit 24 of the portable wireless terminal 100 that has returned from the outside of the communication area to the communication area replaces the home station of the wireless communication network. Alternatively, the remote key lock setting request server may be inquired as to whether or not a remote key lock setting request for the portable wireless terminal 100 has been made. The portable wireless terminal 100 determines whether or not to continue the key lock state by returning the presence or absence of the remote key lock setting request from the remote key lock setting request server that has received the inquiry about the remote key lock setting request. It will be judged. Even if there is no remote key lock setting request, if the remote key lock setting request server returns immediately in response to an inquiry, the response waiting timer T3 should not be used in some cases. Can do.

  Fifth, in a wireless communication network that has received a remote key lock setting request for a portable wireless terminal that exists outside the communication range from a certain communication terminal, the target portable wireless terminal 100 exists outside the communication range. Therefore, when the remote key lock setting request cannot be transmitted to the portable radio terminal 100 and cannot be reached, a retransmission timer that retransmits the remote key lock setting request to the portable radio terminal 100 is used. If the response waiting timer T3 is set to a sufficiently long time (for example, T3 = 2 hours in the case of retransmission timer = 1 hour), after returning to the communication range, remote key lock for the portable wireless terminal 100 is performed. Since the setting request is reliably retransmitted, an inquiry is made to the home station of the wireless communication network as in step S16 described in the above-described embodiment. It may be omitted operation.

  Sixth, in the above-described embodiment, the key lock setting operation at the time of transition from the communication area to the communication area shown in FIG. 3 and the key lock state releasing operation at the time of the transition from the communication area to the communication area shown in FIG. However, it is not necessary for the portable wireless terminal to have both operations as described above. For example, only the key lock setting operation at the time of transition from the communication range to the communication range shown in FIG. 3 is performed, and nothing is performed at the time of the transition from the communication range to the communication range (that is, the key lock state is automatically released). 4 may be maintained as it is), and conversely, only the operation of releasing the key lock state at the time of transition from outside the communication range to the communication range shown in FIG. There may be an embodiment in which nothing is performed at the time of transition to (that is, the key lock state is not automatically set and the state is maintained as it is).

  Seventhly, in the above-described embodiment, the automatic key lock is set when the movement outside the communication range determined based on the reception level of the common channel is detected. Even when 100 is instructed to restrict outgoing calls (Access Class restriction) for some reason from the wireless communication network side, remote key lock cannot be set for the portable wireless terminal. Therefore, an operation of automatically setting the key lock state may be performed by the same method as when moving out of the communication range.

  That is, as shown in FIG. 2, the mobile wireless terminal 100 further includes a transmission restriction determination unit 23 that determines whether or not the transmission restriction state is set. When it is detected that the state has shifted to the state, the key lock setting / release unit 22 automatically performs the key lock state in the same manner as when the communication range determination unit 21 detects that the communication range determination unit 21 has moved out of the communication range. The key lock setting / cancelling unit 22 is the first time when the transmission restriction state continues until the time of the key lock setting timer T1 elapses after the transition to the transmission restriction state. The key lock state may be automatically set.

  Here, the transmission restriction (Access Class restriction) is to suppress the occurrence of a congestion state when there is a possibility that many users may simultaneously communicate using portable wireless terminals at the end of the year or when a disaster occurs. In addition, using the broadcast information transmitted from the base station, a method of restricting outgoing calls to a state in which communication cannot be performed by a user other than a user of a specific mobile wireless terminal determined in advance. Similarly to the case where the terminal is outside the communication range, the terminal cannot perform communication for instructing the remote key lock, and conversely, the terminal cannot receive a remote key lock setting request from another communication terminal.

  In addition, when the call restriction of the mobile wireless terminal that is automatically set to the key lock state is canceled due to the call restriction (Access Class restriction), the above-described operation at the time of transition from the outside of the communication range to the communication range Similarly to the above, the key lock state may be automatically released. That is, when it is detected by the outgoing call restriction determination unit 23 that the outgoing call restriction state has been canceled and the outgoing call restriction state has been released, it has been detected that the communication range determination unit 21 has moved from outside the communication range into the communication range. In the same manner as above, an operation for inquiring the home station of the wireless communication network about the presence / absence of a remote key lock setting request is started, and the key lock state is automatically set by the key lock setting / release unit 22 based on the inquiry result. Alternatively, the key lock setting / cancelling unit 22 may not automatically release the key lock until the response waiting timer T3 has elapsed since the inquiry about the presence or absence of the remote key lock setting request. The state may be released.

  Eighth, in the flowchart of FIG. 4 of the above-described embodiment, as described in steps S16 and S17, after determining that the mobile wireless terminal 100 has moved into the communication range, the key lock release timer T2 Although an example is shown in which when the time has elapsed, the home station inquiry unit 24 makes an inquiry to the home station of the wireless communication network as to whether or not a remote key lock setting request for the portable wireless terminal 100 has been made. The present invention is not limited to such a case.

  For example, instead of using a procedure for inquiring the home station of the wireless communication network about the presence or absence of a remote key lock setting request by the home station inquiry unit 24, a remote key lock setting is performed using a procedure for performing location registration for the home station. The presence or absence of a request may be confirmed. That is, as a means for making an inquiry to the home station of the wireless communication network, when the portable wireless terminal 100 moves from outside the communication area to the communication area, the location registration of the portable wireless terminal 100 must be performed with the home station of the wireless communication network. The home station of the wireless communication network that has received the location registration of the mobile radio terminal 100 registers the location of the mobile radio terminal 100 and uses this location registration as a trigger to set the remote key lock for the mobile radio terminal 100 When the request is stored, the remote key lock setting request may be transmitted to the portable wireless terminal 100 as, for example, SMS (short message).

  In the case of a portable wireless terminal supporting the WCDMA system, it is not always necessary to perform location registration at the home station of the wireless communication network even if the mobile wireless terminal moves from the outside of the communication area to the communication area except under specific conditions. In such an embodiment, in order to confirm whether or not a remote key lock setting request has been made, location registration must be performed at the home station of the wireless communication network.

  Here, the specific condition is, as described in the 3GPP TS 24.008 standard, a predetermined time (usually 60 minutes or the like) that is predetermined as a periodic position registration timer after the previous position registration or communication is performed. 120 minutes (or more than 120 minutes), or a base station having a different communication cell and LAC (Location Area Code) or RAC (Routing Area Code) when the base station is in the communication area This is a case where the communication cell returns to the communication range. Information about LAC / RAC is included in broadcast information transmitted from the base station.

  That is, when the mobile radio terminal 100 corresponding to the WCDMA system moves from the outside of the communication area to the communication area and satisfies the specific condition, the time point when the return to the communication area is detected in step S13 of FIG. Then, as in normal operation, location registration is performed with respect to the home station of the wireless communication network, and the presence or absence of a remote key lock setting request is confirmed. On the other hand, in step S16, since the location registration has already been performed in step S13 and the presence or absence of the remote key lock setting request has been confirmed, nothing is done and the process proceeds to step S17.

  On the other hand, when the mobile radio terminal 100 corresponding to the WCDMA system moves from the outside of the communication area to the communication area, if the specific condition is not satisfied, the return to the communication area is detected in step S13 of FIG. Unlike normal operation, location registration for the home station of the wireless communication network is not performed. On the other hand, in step S16, in order to confirm the presence / absence of a remote key lock setting request, the location registration is performed with respect to the home station of the wireless communication network, and the operation of obtaining the presence / absence of the remote key lock setting request is performed. Do.

  Here, the home station of the wireless communication network recognizes that the portable wireless terminal 100 has returned to the communication area by the position registration from the portable wireless terminal 100, performs the position registration of the portable wireless terminal 100, and When the remote key lock setting request for the portable wireless terminal 100 is stored, the remote key lock setting request is transmitted to the portable wireless terminal 100.

  In the portable wireless terminal 100, if the remote key lock setting request is not returned from the home station of the wireless communication network by the time of the response waiting timer T3, the mobile wireless terminal 100 is in a period of being outside the communication range. It is determined that there has not been a remote key lock setting request for the portable wireless terminal 100 that has not been reached, and an operation for releasing the key lock setting state is performed.

  By using this method, the portable radio terminal 100 newly provides a special procedure for inquiring whether or not a remote key lock setting request for the portable radio terminal 100 has been made in the existing portable radio terminal 100. The necessity of remote key lock setting request can be confirmed by performing the procedure of performing location registration that has been conventionally provided.

  Ninthly, as shown in the above-described embodiments, the present invention can be suitably applied to a portable wireless terminal compatible with a WCDMA wireless communication system, but is not limited to the WCDMA only, the PDC method The same method can be applied even to a mobile communication terminal that supports a wireless communication method other than the WCDMA method, such as the PHS method, the wireless LAN / WAN, or the like.

(Effects of the embodiment of the present invention)
According to the above-described embodiment of the present invention, the following effects can be obtained.

  First, based on the wireless communication state of the mobile wireless terminal (whether it is within communication range or out of communication range), the key lock state is automatically set only when the mobile wireless terminal transitions from the communication range to the outside of the communication range. It is possible to continue the key lock state during the period when it is outside the communication range, so it can be used for portable wireless terminals outside the communication range that have been a problem with the conventional remote key lock method. Thus, the problem that remote key lock cannot be performed can be solved.

  Secondly, in the case of a method of automatically setting a key lock state regardless of the user's intention (for example, a method of automatically key lock when a non-operation state continues for a certain period of time). There was a problem in terms of usability because the key lock was applied more than necessary, and it took time to release the key lock. However, according to the present embodiment, while the portable wireless terminal exists in the communication range, the remote key lock similar to the prior art can be performed, so that the automatic key lock is suppressed, The automatic key lock can be performed only when the remote key lock cannot be performed outside the communication range. Therefore, by suppressing unnecessary automatic key lock operation according to the wireless communication state, it is possible to provide the user with the minimum necessary automatic key lock function, thereby improving the usability of key lock. be able to.

  Thirdly, when returning to the communication range, it is determined whether or not the key lock needs to be continued by the remote key lock setting request received during the period of being outside the communication range. Inquiries to the station or remote key lock setting request server, if there is no response that the key lock is required, or if there is a response that the key lock is not required (i.e. When there is no remote key lock setting request for the mobile wireless terminal), the key lock is automatically released when the mobile phone returns to the communication range, so it is not necessary to release the key lock state. Usability related to locking can be improved.

  The configuration of the preferred embodiment of the present invention has been described above. However, it should be noted that such examples are merely illustrative of the invention and do not limit the invention in any way. Those skilled in the art will readily understand that various modifications and changes can be made according to a specific application without departing from the gist of the present invention.

It is explanatory drawing for demonstrating the operation | movement which cancels | releases a key lock automatically according to the place where a portable wireless terminal exists in this invention. It is a block block diagram which shows an example of the block configuration of the portable radio | wireless terminal by this invention. 5 is a flowchart for explaining an example of a key lock setting operation of the portable wireless terminal according to the present invention. 5 is a flowchart for explaining an example of a key lock releasing operation of the portable wireless terminal according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Radio | wireless part 20 Control part 21 Communication area determination part 22 Key lock setting / cancellation part 23 Transmission control determination part 24 Home station inquiry part 30 Main body operation part 100 Portable wireless terminal

Claims (18)

  In a portable wireless terminal that performs wireless communication using a wireless communication network, a communication area determination unit that determines whether the portable wireless terminal exists within the communication area or outside the communication area, and determination by the communication area determination unit Key lock setting / releasing means for setting the portable wireless terminal to a key lock state based on the result or releasing the set key lock, and the portable wireless terminal is within communication range by the communication area determining means A portable wireless terminal that is automatically set to a key lock state by the key lock setting / release means when it is detected that the mobile phone has moved out of the communication range.   In a portable wireless terminal that performs wireless communication using a wireless communication network, a transmission restriction determination unit that determines whether or not the portable wireless terminal is in a transmission restriction state, and the portable device based on a determination result of the transmission restriction determination unit Key lock setting / releasing means for setting the wireless terminal to a key lock state or releasing the set key lock, and making a call from a state in which the portable wireless terminal is not restricted by the call restriction determination means A portable wireless terminal characterized in that, when it is detected that the state has shifted to a restricted state, the key lock state is automatically set by the key lock setting / release means.   From the state in which the mobile wireless terminal is moved out of the communication range from the communication range by the communication range determination unit, or from the state in which the mobile wireless terminal is not controlled to transmit by the transmission restriction determination unit It is not until the predetermined key lock set time elapses after the transition is detected that the key lock is present only when the communication is continuously outside the communication range or when the outgoing call restriction state continues. 3. The portable wireless terminal according to claim 1, wherein the key lock state is automatically set by the setting / release means.   In a portable wireless terminal that performs wireless communication using a wireless communication network, a communication area determination unit that determines whether the portable wireless terminal exists in the communication area or outside the communication area, and the portable wireless terminal is out of the communication area Home station inquiry means for making an inquiry to the home station of the wireless communication network whether or not there has been a request for setting of remote key lock for the portable wireless terminal during the period existing in the portable wireless terminal. When it is detected that the terminal has moved from outside the communication area to the communication area, the home station inquiry means determines whether or not a remote key lock setting request for the portable wireless terminal has been made to the home station of the wireless communication network. A portable wireless terminal characterized by   In a portable wireless terminal that performs wireless communication using a wireless communication network, a transmission restriction determination unit that determines whether or not the portable wireless terminal is in a transmission restriction state, and a period during which the portable wireless terminal is in a transmission restriction state Home station inquiry means for inquiring of the home station of the wireless communication network whether or not a remote key lock setting request has been made for the portable wireless terminal, and the portable wireless terminal makes a call from a restricted call state by the outgoing call restriction determination means. When it is detected that the mobile station has shifted to an unregulated state, the home station inquiry means inquires of the home station of the wireless communication network whether or not there has been a remote key lock setting request for the portable wireless terminal. A portable wireless terminal characterized by that.   After detecting that the mobile wireless terminal has moved from outside the communication range to the communication range by the communication range determining means, or from the outgoing call restricted state to the state where the mobile wireless terminal is not outgoing restricted Only when it has been detected that it has been transferred and has been in the communication area until the predetermined key lock release time has elapsed, 6. The portable wireless terminal according to claim 4, wherein the home station inquiry means inquires of the home station of the wireless communication network whether or not a remote key lock setting request has been made to the portable wireless terminal. .   The portable wireless terminal according to any one of claims 4 to 6, wherein as the home station inquiry means, means for performing location registration of the portable wireless terminal with respect to the home station of a wireless communication network station is used.   Based on the determination result of the communication area determination means or the transmission restriction determination means, the portable wireless terminal is set to a key lock state, or includes a key lock setting / release means for releasing the set key lock state, Until the predetermined response waiting time elapses, the home station of the wireless communication network inquired by the home station inquiry means returns a message indicating that a remote key lock setting request has been made for the portable wireless terminal. 8. The key lock state is automatically canceled by the key lock setting / cancelling means when there is no response or a message indicating that there is no remote key lock setting request is returned. The portable wireless terminal according to any one of the above.   Based on the determination result of the communication area determination means or the transmission restriction determination means, the portable wireless terminal is set to a key lock state, or includes a key lock setting / release means for releasing the set key lock state, Until the predetermined response waiting time elapses, the home station of the wireless communication network inquired by the home station inquiry means has returned that there has been a remote key lock setting request for the portable wireless terminal. 8. The portable wireless terminal according to claim 4, wherein the key lock setting / releasing means suppresses the operation of releasing the key lock state and continues the key lock state.   A remote key lock setting request server for storing, in place of the home station, the presence / absence of a remote key lock setting request for each portable wireless terminal in the wireless communication network, and the remote key for the portable wireless terminal by the home station inquiry means An inquiry for inquiring whether there has been a lock setting request is made to the remote key lock setting request server instead of the home station of the wireless communication network, and the remote key lock setting request having received the inquiry 10. The portable wireless terminal according to claim 4, wherein the presence / absence of a remote key lock setting request for the portable wireless terminal is returned from the server.   A portable wireless terminal, wherein both the portable wireless terminal according to any one of claims 1 to 3 and the portable wireless terminal according to any one of claims 4 to 10 are integrated into one device.   12. The portable radio terminal comprises a wireless communication system corresponding to any one of a WCDMA system, a PDC system, a PHS system, and a wireless LAN / WAN system. Mobile wireless terminals.   A method for canceling a key lock setting in a portable wireless terminal that performs wireless communication using a wireless communication network, wherein the portable wireless terminal determines whether the portable wireless terminal exists within a communication area or out of a communication area, and communicates from the communication area A key lock setting releasing method, wherein when a movement outside the service area is detected, the key lock state is automatically set.   A key lock setting release method in a portable wireless terminal that performs wireless communication using a wireless communication network, wherein it is determined whether or not the portable wireless terminal is in a transmission restriction state, and a transmission restriction state from a state in which the transmission restriction is not performed A key lock setting releasing method, wherein the key lock state is automatically set when it is detected that the process has shifted to the above.   A method for canceling a key lock setting in a portable wireless terminal that performs wireless communication using a wireless communication network, wherein the portable wireless terminal determines whether the portable wireless terminal exists within a communication area or outside a communication area, and communicates from outside the communication area A key lock setting release method, comprising: inquiring whether a remote key lock setting request for the portable wireless terminal has been made to a home station of a wireless communication network when it is detected that the mobile station has moved to the vicinity.   A key lock setting release method in a portable wireless terminal that performs wireless communication using a wireless communication network, wherein it is determined whether or not the portable wireless terminal is in an outgoing call restriction state, and the outgoing call restriction state is not restricted. A key lock setting release method, comprising: inquiring whether a request for setting a remote key lock for the portable wireless terminal has been made to a home station of a wireless communication network when it is detected that a transition has been made.   There is a response waiting time that is determined in advance from the home station of the wireless communication network that has inquired whether or not there has been a remote key lock setting request for the portable wireless terminal. If it is not returned before the elapse of time, or if it is returned until the response waiting time elapses that there is no remote key lock setting request for the portable wireless terminal, automatically The key lock setting release method according to claim 15 or 16, wherein the key lock state is released.   There is a response waiting time determined in advance from the home station of the wireless communication network that has inquired whether or not there has been a remote key lock setting request for the portable wireless terminal. The key lock setting releasing method according to claim 15 or 16, wherein when the message is returned before the elapse of time, the operation for releasing the key lock state is suppressed and the key lock state is continued.

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