JP2004080308A - W-cdma mobile terminal and operating mode setting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile phone terminal that can be set, by utilizing an existing interface adopting the W-CDMA system, to a state which does not give adverse effects on surrounding electronic apparatuses by a radio wave that the mobile phone terminal transmits and in which only a function unattended with communication can be used. <P>SOLUTION: When the mobile phone terminal is set to the off-line mode by operations applied to an operation section 11, a control section 14 releases position registration to a network. When the position registration is released, a wireless section 12 stops communication with a network and the control section 14 stops a function attended with communication with the network. When the off-line mode is released by operations applied to the operation section 11, the wireless section 12 starts the communication with the network and the control section 14 resumes the function attended with the communication with the network. Further, when the mobile phone terminal starts communication with the network, the control section 14 registers its position to the network. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a W-CDMA mobile phone terminal that prevents adverse effects on surroundings due to transmission of radio waves.
[0002]
[Prior art]
2. Description of the Related Art In recent years, a mobile phone terminal has various additional functions in addition to a voice communication function and a data communication function such as the Internet and e-mail. For example, there are an alarm function for notifying a user that a predetermined time has come, a memo function for storing information in a memory instead of a memo, and the like. In addition, contents downloaded from the Internet can be used on a mobile phone terminal. For example, music can be reproduced by a mobile phone terminal.
[0003]
While having a convenient function, a mobile phone terminal may adversely affect surrounding electronic devices due to radio waves transmitted. In particular, there is a concern that radio waves transmitted from mobile phone terminals may affect medical equipment and the like. Therefore, there are places where the use of the mobile phone terminal is prohibited, such as hospitals, and places where the use of the mobile phone terminal is not preferable, such as trains.
[0004]
Since the mobile phone terminal sometimes transmits radio waves other than during a call, it is necessary to turn off the power of the mobile phone terminal in a hospital or the like. When the power of the mobile phone terminal is turned off, functions that do not involve communication, such as the alarm function and the memo function described above, cannot be used. Also, it is not possible to browse mails received in the past. Conversely, when the power is turned on to use such a function, the mobile phone terminal may transmit radio waves, which may adversely affect the surroundings.
[0005]
In order to solve such a problem, a conventional mobile phone terminal is provided with an operation mode (hereinafter, referred to as an offline mode) in which only a function without communication can be used and a function with communication cannot be used. (For example, see Patent Documents 1 to 3). In the off-line mode, the conventional mobile phone does not transmit radio waves, so that, for example, in a hospital, the use of the alarm function or the memo function does not adversely affect medical equipment.
[0006]
[Patent Document 1]
JP 2002-199454 A
[Patent Document 2]
JP-A-2002-64874
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2002-64866
[Problems to be solved by the invention]
2. Description of the Related Art In recent years, with the development of technology, a W-CDMA mobile communication system that has high call voice quality, high-speed data communication, and high processing capability has been realized. The W-CDMA mobile communication system has a high processing capability and can handle a large amount of data, so that not only voice, image communication, and data communication but also functions without communication have been enhanced.
[0010]
Various operations of the W-CDMA mobile phone terminal have been standardized, but means for realizing the above-mentioned offline mode has not been established. Therefore, at present, there is no W-CDMA mobile phone terminal having an offline mode. Therefore, in the conventional W-CDMA mobile phone terminal, the only way to stop transmission of radio waves is to turn off the power.
[0011]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a mobile phone that can be set using an existing W-CDMA interface so that transmitted radio waves do not adversely affect surrounding electronic devices and only a function that does not involve communication can be used. To provide a telephone terminal.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, a W-CDMA mobile terminal of the present invention is a W-CDMA mobile terminal having a function that involves communication with a network and a function that does not involve communication with a network,
A wireless unit that transmits and receives wireless signals to and from the network in communication with the network;
An operation unit for detecting an operation performed on the W-CDMA mobile terminal by the user;
When an operation to shift to the offline mode is detected by the operation unit, the location registration with respect to the network is released, the wireless unit is stopped, and a function involving communication with the network is stopped, and the operation unit is turned on-line. When an operation for shifting to the mode is detected, a control unit that activates a wireless unit to restart a function involving communication with the network and registers a position in the network.
[0013]
Therefore, when the user performs the operation of setting or canceling the offline mode, the operation unit detects the operation and notifies the control unit, and the control unit performs the position registration cancellation or the position registration with respect to the network using the existing procedure. , The wireless unit stops or restarts communication with the network.
[0014]
Another W-CDMA mobile terminal of the present invention is a W-CDMA mobile terminal having a function that involves communication with a network and a function that does not involve communication with a network,
A wireless unit that transmits and receives wireless signals to and from the network in communication with the network;
An operation unit for detecting an operation performed on the W-CDMA mobile terminal by the user;
When an operation to shift to the offline mode is detected in the operation unit, the location registration to the network is released, the wireless unit stops transmitting wireless signals to the network, and only receives wireless signals from the network. When the operation to shift to the online mode is detected by the operation unit, the wireless unit restarts the transmission of the wireless signal to the network, and the communication with the network is stopped. Is restarted, and a control unit for performing location registration with the network is provided.
[0015]
Therefore, the W-CDMA portable terminal continues to receive wireless signals from the network even in the offline mode.
[0016]
In another W-CDMA portable terminal according to the present invention, the control unit detects a nearby base station by a wireless signal received from the network by the wireless unit, and shifts to the offline mode by the operation unit. Is detected and the base stations in the surrounding area continue to be detected even if the location registration is canceled with respect to the network. The location registration may be performed for a base station having a good reception state.
[0017]
Therefore, the W-CDMA portable terminal continues to receive a wireless signal from the network and detect a base station using the wireless signal even in the offline mode.
[0018]
An operation mode setting method according to the present invention provides a W-CDMA portable terminal having a function that involves communication with a network and a function that does not involve communication with a network. An operation mode setting method for setting only an available offline mode and canceling the operation mode,
Canceling the location registration for the network when setting to the offline mode;
When the location registration is released, stopping communication with the network, and stopping a function involving communication with the network;
When releasing the offline mode, starting communication with the network and resuming a function involving communication with the network;
When communication with the network is started, there is a step of performing location registration for the network.
[0019]
According to another operation mode setting method of the present invention, in a W-CDMA portable terminal having a function that involves communication with a network and a function that does not involve communication with a network, transmission of radio signals is stopped to cause communication with the network. An operation mode setting method for setting and canceling only offline functions that can be used,
Canceling the location registration for the network when setting to the offline mode;
When the location registration is released, stopping the transmission of the wireless signal to the network, only receiving the wireless signal from the network, stopping the function involving communication with the network,
When releasing the offline mode, enabling transmission of a wireless signal to a network and resuming a function involving communication with the network;
When a wireless signal can be transmitted to the network, the location registration is performed for the network.
[0020]
Further, in another operation mode setting method of the present invention, even when the transmission of the wireless signal to the network is stopped, the detection of the surrounding base station by the signal received from the network is continued, and the wireless signal to the network is transmitted. When transmission becomes possible, location registration may be performed for a base station having the best radio signal reception state.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described in detail with reference to the drawings.
[0022]
FIG. 1 is a block diagram illustrating a configuration of the mobile phone terminal according to the present embodiment. Referring to FIG. 1, a mobile phone terminal 10 according to the present embodiment includes a key operation unit 11, a control unit 12, a wireless unit 13, and an antenna 14.
[0023]
The key operation unit 11 detects an operation on various keys by the user and notifies the control unit 12 of the operation.
[0024]
For example, the key operation unit 11 detects an operation for setting the mobile phone terminal 10 in the offline mode, and notifies the control unit 14 of the operation. The offline mode is an operation mode in which only functions without communication can be used and functions with communication cannot be used. On the other hand, the online mode is an operation mode in which a function involving communication with a network can be used.
[0025]
In the offline mode, the mobile phone terminal 10 does not transmit any radio waves to the network. Functions that can be used in the offline mode include, for example, an alarm function for notifying a user that a predetermined time has come, a memo function for storing information in a memory instead of a memo, a game function, a music reproduction function, and the like.
[0026]
The key operation unit 11 detects an operation for setting the mobile phone terminal 10 in the online mode, and notifies the control unit 14 of the operation.
[0027]
The wireless unit 12 transmits and receives wireless signals to and from a network (not shown) via the antenna 13.
[0028]
As a receiving process, the radio unit 12 synchronizes with a radio signal from the network, detects a frame, receives information transferred by the frame, and sends the information to the control unit 14.
[0029]
Further, the radio unit 12 puts information from the control unit 14 in a frame as a transmission process and sends the information to the network via the antenna 13.
[0030]
When receiving a stop instruction from the control unit 14, the wireless unit 12 stops transmitting and receiving wireless signals. Further, upon receiving the activation instruction from the control unit 14, the wireless unit 12 starts transmitting and receiving wireless signals.
[0031]
The control unit 14 performs various processes according to the notification from the key operation unit 11 and the information received from the network.
[0032]
When notified from the key operation unit 11 that an operation to shift to the offline mode has been performed, the control unit 13 stops the function involving communication, executes DETACH processing with the network, and releases the location registration. Thereafter, the wireless unit 12 is instructed to stop, and the wireless unit 12 itself stops communication with the network.
[0033]
The DETACH process is a process for canceling the location registration with respect to the network, and is usually executed when the power of the mobile phone terminal is turned off. However, in the present embodiment, the DETACH process is also executed when an operation to go offline in the online mode is performed. Is done. In the DETACH process, what is exchanged between the mobile phone terminal 10 and the network is standard W-CDMA information. When the mobile phone terminal 10 enters the offline mode, the network performs the same processing as when the power of the mobile phone 10 is turned off. That is, the network to which the mobile phone terminal 10 having the function of selecting the offline mode is connected does not need to execute processing other than the standardized processing. Therefore, in this embodiment, the conventional network can be used as it is. In addition, the mobile phone terminal 10 can realize a process of shifting to the offline mode by diverting a process that has been conventionally used.
[0034]
When the DETACH process is executed, the position registration of the mobile phone terminal 10 with respect to the network is released, and the network does not know where the mobile phone terminal 10 is. In this state, for example, even if there is a call to the mobile phone terminal 10, the network does not perform paging.
[0035]
When notified from the key operation unit 11 that an operation to shift to the online mode has been performed, the control unit 13 instructs the wireless unit 12 to start, performs a cell search, and enables communication with the network, An ATTACH process is performed with the network. Then, after the ATTACH process, the control unit 13 can perform a function involving communication such as a voice call.
[0036]
The cell search is an operation of synchronizing a signal from a base station and acquiring a spreading code number to make it communicable with a base station of a serving cell. Thereby, the mobile phone terminal 10 is in a state where it can exchange signals with the network.
[0037]
The ATTACH process is a process in which the mobile phone terminal performs location registration with respect to the network, and is usually performed when the power of the mobile phone terminal is turned on or when the mobile phone terminal moves between cells. In the embodiment, it is also executed when an operation for shifting from the offline mode to the online mode is performed. In the ATTACH process, what is exchanged between the mobile phone terminal 10 and the network is W-CDMA standard information. The network to which the mobile phone terminal 10 of the present embodiment is connected does not need to execute processing other than the standardized processing. Therefore, a conventional network can be used as it is. When the position of the mobile phone terminal is registered in the network in the ATTACH process, the mobile phone terminal is ready to perform a function involving communication.
[0038]
In a general location registration procedure, a mobile phone terminal and a network first perform wireless establishment processing. By this wireless establishment processing, an RRC connection is set between the mobile phone terminal and the network.
[0039]
Next, when the mobile phone terminal makes a location registration request to the network, the mobile phone terminal is authenticated. Authentication is requested from the network to the mobile phone terminal, and is performed by returning a response including a calculation result from the mobile phone terminal. When the authentication of the mobile phone terminal is completed, a secrecy process is performed next. Thereby, the signal between the mobile phone terminal and the network is kept secret.
[0040]
Next, a location registration reception is sent from the network to the mobile phone terminal, and when the location registration is completed, a process of releasing the RRC connection is performed, and a series of processes of the location registration is completed.
[0041]
In this state, for example, if there is an incoming call to the mobile phone terminal, paging is performed in the area where the mobile phone terminal is registered. In this state, if the state of the radio wave changes due to movement or the like, the mobile phone terminal requests position registration for a new area as needed.
[0042]
In the online mode, the control unit 14 performs voice and image communication with the other party's mobile phone terminal or the like via the network in accordance with a notification from the key operation unit 11 or information received from the network. In the online mode, the control unit 14 performs an operation without communication such as an alarm function and a memo function in response to a notification from the key operation unit 11.
[0043]
In the offline mode, the control unit 14 does not perform communication via the network, but performs only operations that do not involve communication such as an alarm function and a memo function.
[0044]
FIG. 2 is a flowchart illustrating an operation of determining whether or not to shift to the offline mode by the control unit that has been notified that the operation to shift to the offline mode has been performed. Referring to FIG. 2, when notified that an operation to shift to the offline mode has been performed, the control unit 14 determines whether or not the offline mode is currently set in step A1.
[0045]
If the offline mode has been set, the control unit 14 displays a message “Setting offline mode” on the screen in step A2, and ends the processing because there is no need to shift to the offline mode.
[0046]
If the offline mode has not been set, the control unit 14 determines in step A3 whether communication is currently being performed by voice communication, data communication, or the like.
[0047]
If the communication is not being performed, the control unit 14 determines to shift to the offline mode and ends the processing.
[0048]
If the communication is being performed, the control unit 14 determines in step A4 whether the communication can be disconnected. If the communication can be disconnected, in step A5, the control unit 14 disconnects the communication (end processing), decides to shift to the offline mode, and ends the processing. If the communication cannot be disconnected in the determination in step A4, the control unit 14 determines not to shift to the offline mode, and ends the processing.
[0049]
FIG. 3 is a flowchart illustrating an operation of determining whether or not to shift to the online mode by the control unit that has been notified that the operation to shift to the online mode has been performed. Referring to FIG. 3, when notified that an operation for shifting to the online mode has been performed, the control unit 14 determines whether or not the offline mode is currently set in step B1.
[0050]
If the mode is set to the offline mode, the control unit 14 determines to shift to the online mode, and ends the processing.
[0051]
If the offline mode has not been set, the control unit 14 displays a message that "the offline mode is not being set" on the screen in step B2, and terminates the processing because there is no need to shift to the online mode.
[0052]
FIG. 4 is a sequence diagram illustrating an operation of shifting to the offline mode of the mobile phone terminal according to the present embodiment. In FIG. 4, the initial state of the mobile phone terminal 10 is the online mode.
[0053]
Referring to FIG. 4, when the user performs an operation for shifting to the offline mode, the key operation unit 11 detects the operation and notifies the control unit 14.
[0054]
When notified from the key operation unit 11 that an operation for shifting to the offline mode has been performed, the control unit 14 exchanges a message with the network via the wireless unit 12 to perform DETACH processing, and shifts to the offline mode. . Thereby, the position registration of the mobile phone terminal 10 with respect to the network is released.
[0055]
Next, the control unit 14 instructs the wireless unit 12 to stop. As a result, the wireless unit 12 stops transmitting and receiving wireless signals to and from the network.
[0056]
With these operations, the mobile phone terminal 10 enters the offline mode. In the offline mode, the mobile phone terminal 10 does not transmit any radio waves to the network, and can use only functions without communication.
[0057]
FIG. 5 is a sequence diagram illustrating an operation of shifting to the online mode of the mobile phone terminal according to the present embodiment. In FIG. 5, the initial state of the mobile phone terminal 10 is offline.
[0058]
Referring to FIG. 5, when the user performs an operation for shifting to the online mode, the key operation unit 11 detects the operation and notifies the control unit 14.
[0059]
When notified from the key operation unit 11 that an operation for shifting to the online mode has been performed, the control unit 14 instructs the wireless unit 12 to start. Thereby, the wireless unit 12 is activated. Upon activation, the radio unit 12 synchronizes the frame of the radio signal from the network and starts sending information received in the frame to the control unit 14.
[0060]
Next, the control unit 14 identifies a communicable base station (not shown), performs an ATTACH process with the network, and shifts to the online mode. Thereby, the location of the mobile phone terminal 10 is registered in the network.
[0061]
With these operations, the mobile phone terminal 10 enters the online mode. In the online mode, the mobile phone terminal 10 can transmit and receive radio waves to and from the network, so that both functions with and without communication can be used.
[0062]
As described above, when the user performs an operation of setting or canceling the offline mode, the key operation unit 11 detects the operation and notifies the control unit 14, and the control unit 14 uses the existing procedure to communicate with the network. Since the DETACH process (location registration cancellation) or the ATTACH process (location registration) is performed, the mobile terminal can be set to an offline mode in which transmission radio waves do not affect surrounding electronic devices without departing from the standard of the W-CDMA system. Can be provided.
[0063]
In the mobile phone 10 of the present embodiment, in the offline mode, the wireless unit 12 is stopped to stop both transmission and reception of the wireless signal, but the present invention is not limited to this. For the purpose of the present invention, the transmission of the radio signal needs to be stopped, but the reception need not necessarily be stopped.
[0064]
For example, the mobile phone terminal 10 receives a radio signal even in the offline mode, continues frame synchronization and identification of a cell in which the mobile phone terminal 10 is located, and immediately performs location registration when an operation for shifting to the online mode is performed. It may be performed. Normally, it takes some time to achieve frame synchronization, but if the frame synchronization is continued even in the offline mode, the mobile phone terminal 10 needs to re-establish the frame synchronization and further identify the base station. Since there is no such mode, it is possible to shift from the offline mode to the online mode in a short time.
[0065]
Further, for example, the mobile phone terminal 10 may continue to receive a radio signal and keep frame synchronization even in the offline mode, and may start identifying the base station when an operation for shifting to the online mode is performed.
[0066]
Also, in the present embodiment, the terminal is exemplified by the mobile phone terminal 10 capable of voice communication and data communication, but the present invention is not limited to this. Any W-CDMA terminal having both a function with communication with the network and a function without communication with the network may be used. For example, a data communication terminal that does not have a voice call function may be used.
[0067]
【The invention's effect】
According to the present invention, when the user performs an operation of setting or canceling the offline mode, the operation unit detects the operation and notifies the control unit, and the control unit cancels the location registration or cancels the location registration to the network using the existing procedure. Since location registration is performed and the wireless unit stops or resumes communication with the network, the surrounding electronic devices are transmitted by the transmission radio wave without adding a special function to the network and using the existing interface of the W-CDMA terminal. It is possible to easily provide a W-CDMA terminal that can be set to an offline mode that does not affect devices and the like.
[0068]
Further, according to the present invention, the W-CDMA terminal continues to receive the radio signal from the network even in the offline mode, so that it is not necessary to resynchronize the frames when returning to the online mode, and it is possible to return to the online mode in a short time. it can.
[0069]
Further, according to the present invention, the W-CDMA terminal continues to receive a radio signal from the network and detect a base station using the radio signal even in the offline mode, so that when returning to the online mode, frame synchronization and base station detection are performed. It is possible to return to the de-online mode for a short time without having to redo.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a mobile phone terminal according to an embodiment.
FIG. 2 is a flowchart illustrating an operation of determining whether or not to shift to an offline mode by a control unit notified of an operation to shift to an offline mode;
FIG. 3 is a flowchart illustrating an operation of determining whether or not to shift to an online mode by a control unit notified of an operation to shift to an online mode;
FIG. 4 is a sequence diagram showing an operation of shifting to the offline mode of the mobile phone terminal of the embodiment.
FIG. 5 is a sequence diagram illustrating an online mode transition operation of the mobile phone terminal of the embodiment.
[Explanation of symbols]
Reference Signs List 10 mobile phone terminal 11 key operation unit 12 control unit 13 radio unit 14 antennas A1 to A5, B1 to B2 step

Claims (6)

A W-CDMA portable terminal having a function involving communication with a network and a function not involving communication with the network,
A wireless unit that transmits and receives wireless signals to and from the network in communication with the network;
An operation unit for detecting an operation on the W-CDMA portable terminal by a user;
When an operation for shifting to the offline mode is detected in the operation unit, the location registration for the network is released, the wireless unit is stopped, and a function involving communication with the network is stopped, When an operation for shifting to the online mode is detected by the operation unit, a control unit that activates the wireless unit to restart a function involving communication with the network and performs location registration with the network is provided. W-CDMA portable terminal. A W-CDMA portable terminal having a function involving communication with a network and a function not involving communication with the network,
A wireless unit that transmits and receives wireless signals to and from the network in communication with the network;
An operation unit for detecting an operation on the W-CDMA portable terminal by a user;
When an operation for shifting to the offline mode is detected in the operation unit, the location registration with respect to the network is released, the transmission of the radio signal to the network is stopped by the radio unit, and the transmission from the network is stopped. Only the reception of the wireless signal is performed, the function involving communication with the network is stopped, and when an operation for shifting to the online mode is detected by the operation unit, the wireless unit transmits the wireless signal to the network. A W-CDMA portable terminal having a control unit that resumes transmission, resumes a function involving communication with the network, and registers a location with the network. The control unit has detected a nearby base station by a wireless signal received from the network in the wireless unit, the operation to shift to the offline mode in the operation unit is detected, the network On the other hand, even if the location registration is canceled, the detection of the surrounding base stations continues, and when an operation for shifting to the online mode is detected in the operation unit, the base station having the best radio signal reception state is detected. 3. The W-CDMA portable terminal according to claim 2, wherein the mobile terminal performs location registration. In a W-CDMA portable terminal having a function that involves communication with a network and a function that does not involve communication with the network, an offline mode in which transmission of radio signals is stopped and only functions that do not involve communication with the network can be used. An operation mode setting method for setting and canceling,
Releasing the location registration for the network when setting the offline mode;
When the location registration is released, stopping communication with the network, stopping a function involving communication with the network,
When releasing the offline mode, starting communication with the network, and restarting a function involving communication with the network,
When the communication with the network is started, an operation mode setting method including a step of performing location registration with respect to the network. In a W-CDMA portable terminal having a function involving communication with a network and a function not involving communication with the network, an offline mode in which transmission of radio signals is stopped and only functions without communication with the network can be used. An operation mode setting method for setting and canceling,
Releasing the location registration for the network when setting the offline mode;
When the location registration is released, stop transmitting a wireless signal to the network, perform only reception of a wireless signal from the network, and stop a function involving communication with the network,
When releasing the offline mode, enabling transmission of a wireless signal to the network, and restarting a function involving communication with the network;
An operation mode setting method, comprising the step of performing location registration for the network when transmission of a wireless signal to the network becomes possible. Even when the transmission of the radio signal to the network is stopped, the detection of the surrounding base stations by the signal received from the network is continued, and when the transmission of the radio signal to the network becomes possible, The operation mode setting method according to claim 5, wherein location registration is performed for a base station having a good signal reception state.

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