Mobile wireless terminal apparatus and operating state control method

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a portable wireless terminal device and an operating state control method, and is suitable for application to, for example, a mobile phone in a cellular wireless communication system.

【0002】

[Conventional technology]

Conventionally, in a mobile phone, for example, when the user is in a moving vehicle such as a train or in a hospital, the power is turned off in consideration of inconvenience to the surroundings, and the mobile phone is located in an environment where it can be used. Sometimes it is common practice to turn the power on again and use it.

【0003】

[Problems to be Solved by the Invention]

By the way, in a mobile phone having such a configuration, since the power on / off is based on the independence of the user by operating a button, the power is turned off even in an environment where the user must set the power to off. There was a problem that it could be used in the operating state that was not set to.

【0004】

The present invention has been made in consideration of the above points, and will propose a portable wireless terminal device and an operating state control method that can forcibly set a predetermined operating state regardless of the user's operation under a certain environment. Is to be.

【0005】

[Means for solving problems]

In order to solve such a problem, in the present invention, when wireless communication with a base station is performed at a transmission timing of a preset time slot, transmission from the portable wireless terminal device to the base station should be performed according to the distance from the base station. After receiving timing information for accelerating the transmission timing from at least three base stations and specifying the current position of the portable wireless terminal device itself based on the time and radio wave propagation speed indicated by the three types of received timing information, the said By calculating the movement speed from the current position and switching the operating state of the portable wireless terminal device based on the calculated movement speed, it is suitable for an environment in which the user exists without causing troublesome operations to the user. The operating state can be set forcibly and automatically.

【0006】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

【0007】

In FIG. 1, 1 indicates a digital cellular system as a whole, and when a call is made from the mobile phone 2 to another mobile phone 9, the mobile phone 2 makes a dialing call based on the telephone number of the call destination mobile phone 9. Do.

【0008】

Specifically, the mobile phone 2 as the mobile wireless terminal device of the present invention makes a wireless communication connection to the base station 3 in the cell in which the mobile phone 2 is located, and the base station 3 to the exchange 4 and the public. It is connected to the base station 7 in the cell where the other party's mobile phone 9 is located via the line network 5 and the exchange station 6, and is wirelessly connected to the mobile phone 9 via the base station 7.

【0009】

Further, the digital cellular system 1 is connected to the service provider 8 via the public network 5, and the service provider 8 can provide various data such as e-mails and simple homepages to the mobile phone 2. There is.

【0010】

Further, in the digital cellular system 1, the mobile phone 2 periodically outputs a predetermined control signal to the base station 3 to notify the base station 3 that the mobile phone 2 is under the control of the base station 3. It is designed to be recognized, thereby maintaining a call connection between the base station 3 and the mobile phone 2.

【0011】

As shown in FIG. 2, the mobile phone 2 first sends the received signal S1 from the base station 3 received by the antenna 11 at the time of reception to the receiving RF (Radio Frequency) unit 13 via the selector 12.

【0012】

The reception RF unit 13 generates a reception signal S2 having an appropriate signal level by performing band limitation and gain control on the reception signal S1, and sends the reception signal S2 to the mixer 14.

【0013】

The mixer 14 multiplies the received signal S2 supplied from the receiving RF unit 13 with the local transmitting signal S15 having a predetermined frequency supplied from the local transmitting circuit 15 to convert the frequency into a receiving signal S3 having a predetermined frequency. This is sent to the receiving interface unit 16.

【0014】

The reception interface unit 16 generates digital reception data D4 by analog-to-digital conversion of the reception signal S3, and sends it to the demodulation unit 17.

【0015】

The demodulation unit 17 performs demodulation processing on the received data D4, removes the influence of fading by performing deinterleaving processing, error correction processing, etc., and then determines the type of data obtained as a result, and demodulates the result. If the type of is voice data D5, the voice data D5 is sent to the voice decoding unit 18, and if the demodulation result type is communication data D6, the communication data D6 is sent to the communication data decoding unit 21. Send to.

【0016】

The audio decoding unit 18 expands and decodes the audio data D5, restores the analog audio signal S6 by digital-to-analog conversion, amplifies the analog audio signal S6 to a predetermined level via the amplifier 19, and then via the speaker 5A. And output.

【0017】

The communication data decoding unit 21 restores the final original communication data D7 by decoding the communication data D6, and restores the final original communication data D7 from the data bus 29, the CPU bus 30, and the I (In) / O (Out) controller 31. Output to an external device (not shown) such as a computer via the data interface 34, or display a short message or simple homepage based on the communication data D7 from the I / O controller 31 via the display unit 32. ..

【0018】

On the other hand, the mobile phone 5 generates an audio signal S8 by amplifying the audio signal S7 collected via the microphone 5B (FIG. 1) to a predetermined signal level by the amplifier 22 at the time of transmission, and generates the audio signal S8. It is sent to the coding unit 23.

【0019】

The voice coding unit 23 generates digital voice data D9 by encoding the voice signal S8 at a predetermined sampling frequency, compressing it, and dividing it into predetermined blocks, and sends the digital voice data D9 to the modulation circuit 24.

【0020】

Incidentally, the voice coding unit 23 is designed to send the voice data D9 to the voice decoding unit 18, and is designed to output not only the other party's voice but also the user's own voice via the speaker 5A. ..

【0021】

By the way, when the communication data D8 is input from the external device (not shown) via the data interface 34, the I / O controller 31, and the CPU bus 30, the communication data coding unit 28 compresses and encodes the communication data D8. The coded communication data D10 is generated and sent to the modulation circuit 24.

【0022】

The modulation circuit 24 generates transmission data D11 by performing interleaving processing and modulation processing on the voice data D9 or the coded communication data D10, and transmits the transmission data D11 to the transmission interface unit 25.

【0023】

The transmission interface unit 25 generates an analog transmission signal S12 by digital-to-analog conversion of the transmission data D11, and transmits the analog transmission signal S12 to the mixer 26.

【0024】

The mixer 26 multiplies the transmission signal S12 supplied from the transmission interface unit 25 with the local transmission signal S15 having a predetermined frequency supplied from the local transmission circuit 15 to convert the frequency into a transmission signal S13 having a predetermined frequency. This is sent to the transmission RF unit 27.

【0025】

The transmission RF unit 27 generates a transmission signal S14 having a predetermined transmission power by amplifying the transmission signal S13, and radiates this as a radio wave from the antenna 11 via the selector 12.

【0026】

On the other hand, the CPU (Central Processing Unit) 37 connected to the CPU bus 30 uses RAM (Random Access Memory) 39 to perform predetermined processing based on the basic program and various application programs stored in advance in the ROM (Read Only Memory) 40. It is executed by using it as a work area, and the processing result is output to the display unit 32 via the I / O controller 31.

【0027】

When the CPU 37 receives a command corresponding to the input operation of the operation key 33 via the I / O controller 31, the CPU 37 performs various processes such as call processing, call termination processing, and incoming call history display processing according to the command. , The processing result is displayed on the display unit 32.

【0028】

Furthermore, the CPU 37 is designed to store various setting conditions according to the input operation of the operation key 33 in an EEPROM (Electrically Erasable Programmable Read-Only Memory) 38 that can be rewritten, and various types even when the power is turned off. The setting conditions are stored so that the same setting conditions can be set when the power is turned on again.

【0029】

Furthermore, the CPU 37 clocks the date and time based on the system clock CLK1 supplied from the RTC (Real Time Clock) circuit 36, and displays the clocked result on the display unit 32 via the I / O controller 31. , It is designed to be used for time stamps and alarms of communication data.

【0030】

By the way, the mobile phone 2 needs to be synchronized with the base station 3 on a predetermined frequency channel, and also has a start timing of starting a time slot assigned from the base station 3. Accurate synchronization is required as a basic premise.

【0031】

At that time, it is essential that the mobile phone 2 does not interfere with the subscriber (user) who is using another time slot in the uplink channel transmitted from the mobile phone 2 to the base station 3.

【0032】

Therefore, the mobile phone 2 uses the mobile phone 2 and the base station so that the transmission signal S14 transmitted to the base station 3 via the uplink channel completely matches the start timing of the time slot at the antenna end of the base station 3. It is designed to be transmitted at an early timing in consideration of the delay amount according to the distance between the three. Here, the time for this early timing is called timing advance, and will be described with reference to FIGS. 3 (A) to 3 (C) below.

【0033】

As shown in FIG. 3A, channels C1 and C2 indicate downlink channels transmitted from the base station 3 to the mobile phone 2, and in this example, channel C1 in a predetermined frequency band is used.

【0034】

On the other hand, channels C3 and C4 indicate uplink channels transmitted from the mobile phone 2 to the base station 3, and a frequency band different from the downlink channel described above is used.

【0035】

Here, when the channel C1 is used as the downlink channel, the mobile phone 2 is assigned the channel C3 as the uplink channel and is used. Similarly, when the other mobile phone 9 also uses the channel C2 as the downlink channel, the channel C4 is assigned and used as the uplink channel.

【0036】

In this digital cellular system 1, a TDMA (Time Division Multiple Access) wireless communication connection method is used in order to improve frequency utilization efficiency, and by allocating time-division time slots to a plurality of mobile phones. , Realizes lines for up to 8 channels at the same frequency.

【0037】

For example, if the third time slot (RX1) is assigned to the mobile phone 2 in the downlink channel channel C1, the mobile phone 2 is immediately after the power is turned on and when the call connection to the base station 3 is established. Timing advance TA1 is specified from the base station 3 via the third time slot.

【0038】

As a result, as shown in FIG. 3 (B), when the mobile phone 2 is in the third time slot (TX1) on the uplink channel channel C3, the timing is advanced by the time of the timing advance TA1 specified by the base station 3. By transmitting the transmission signal S14 to the base station 3, the transmission signal S14 arrives at the antenna end of the base station 3 at the timing of the original third time slot.

【0039】

By the way, it goes without saying that even if the transmission is performed at a timing earlier than the timing advance TA1, the length of one time slot is predetermined, so that it does not deviate from it.

【0040】

Further, as shown in FIG. 3C, after transmitting the transmission signal S14, the mobile phone 2 is transmitted from the base station 3 or another base station to the mobile phone 2 by the downlink channel channel C5. The control signal C1 is monitored, and a handover is performed to switch the connection destination from the base station 3 to another base station when necessary as the user moves between cells. There is.

【0041】

When such a handover is completed, the mobile phone 2 returns to channel C1 of the downlink channel again, receives the timing advance TA2 from the base station 3 in the third time slot (RX2) in the next frame, and sends the timing advance TA2 to the base station 3. On the other hand, when the uplink channel is in the third slot (TX2), the transmission signal S14 is transmitted to the base station 3 at a timing earlier by the time of the timing advance TA2.

【0042】

Similarly, the mobile phone 2 further monitors the control signal C2 transmitted by the downlink channel channel C6 in order to collect the control signal C2 from the surrounding base stations to prepare for the handover, and thereafter performs the above-mentioned processing. Repeat.

【0043】

By the way, in the digital cellular system 1, when the mobile phone 2 is moving, the distance from the base station 3 to the mobile phone 2 is changing, but the radio wave propagation speed is constant, so the timing advance TA1 and TA2 should be specified. Must be changed and notified.

【0044】

That is, when the mobile phone 2 is moving, the timing advance TA1 and the timing advance TA2 have different values, and when the mobile phone 2 is stopped, the timing advance TA1 and the timing advance TA2 have the same value. ..

【0045】

Conversely, when the timing advance TA1 and the timing advance TA2 show different values, it means that the mobile phone 2 is moving, and the timing advance TA1 and the timing advance TA2 show the same value. When is, it means that the mobile phone 2 is stopped, and it is easy to determine whether the mobile phone 2 is moving or stopped based on the time of the timing advance TA1 and the timing advance TA2. It is designed to be recognizable.

【0046】

However, if the mobile phone 2 is moving within a range where the radius from the base station 3 does not change with this alone, the timing advance TA1 and TA2 do not change, so it is detected whether the mobile phone is moving or stopped. There may be cases where you do not get it.

【0047】

Therefore, as shown in FIG. 4, in the digital cellular system 1, the mobile phone 2 receives the timing advance from the surrounding base stations, and is carried based on the timing advance received from, for example, three base stations. The position and moving speed of the telephone 2 can be detected.

【0048】

That is, if the mobile phone 2 is in a communication connection such that its current position is updated and reported to the base station 3 at predetermined time intervals, the timing advance TA1 (TA2) is transmitted from the base station 3. You can be notified.

【0049】

In addition, the mobile phone 2 requests timing advance for other base stations 60 and 61 other than the cell in which it is located via RACH (Random Access Channel) as a logical channel used when establishing a call connection. To do.

【0050】

As a result, the other base stations 60 and 61 notify the mobile phone 2 of the timing advance TA60 and TA61 according to the distance from the base stations 60 and 61 to the mobile phone 2, respectively.

【0051】

The mobile phone 2 calculates the distances from the three base stations 3, 60 and 61 based on the timing advance TA1 (or TA2), TA60 and TA61 notified from the base stations 3, 60 and 61, respectively, and also calculates the distances from the three base stations 3, 60 and 61. The current position of the mobile phone 2 itself can be specified based on the latitude / longitude information and radio wave propagation speed of each of the base stations provided by the base stations 3, 60 and 61.

【0052】

Therefore, the mobile phone 2 can calculate the movement distance even when the current position changes with the movement of the user, and the movement time can also be timed, so that the movement speed of the mobile phone 2 itself can be determined. It is designed to be easily calculated.

【0053】

In practice, the mobile phone 2 detects the movement speed of the mobile phone 2 itself at a predetermined time interval according to the manner mode automatic setting cancellation processing program which is an application program, and recognizes that the movement speed is equal to or higher than the predetermined speed. When this happens, it is determined that there is a user in the moving vehicle, and the manner mode that sets the power off can be forcibly set.

【0054】

That is, the mobile phone 2 enters from the start step of the routine RT1 shown in FIG. 5 and moves to the step SP1. In step SP1, the CPU 37 of the mobile phone 2 determines whether or not the call is currently in progress.

【0055】

If a call is being made here, an affirmative result is obtained, and the process proceeds to step SP12 and ends without performing processing according to the manner mode automatic setting cancellation processing procedure after step SP2.

【0056】

On the other hand, if a negative result is obtained in step SP1, it can be determined that the mobile phone 2 is not currently in a call and can perform processing according to the manner mode automatic setting cancellation processing procedure. At this time, CPU37 moves to the next step SP2.

【0057】

In step SP2, the CPU 37 determines whether or not the emergency call button (not shown) is pressed via the operation key 33 of the mobile phone 2. If an affirmative result is obtained here, it is determined that the mobile phone 2 itself needs to make an emergency call regardless of whether it is located in the moving vehicle or not, and the process proceeds to step SP8.

【0058】

On the other hand, if a negative result is obtained in step SP2, this means that there is no need for an emergency call, and at this time, the CPU 37 moves to the next step SP3.

【0059】

In step SP3, the CPU 37 requests notification of timing advance TA60 and TA61 from other base stations 60 and 61 located in the periphery other than its own cell, and proceeds to the next step SP4.

【0060】

In step SP4, the CPU 37 receives timing advance TA1 (TA2), TA60 and TA61 from base station 3 in its own cell and other base stations 60 and 61 in the vicinity, respectively, and proceeds to the next step SP5.

【0061】

In step SP5, the CPU 37 receives latitude / longitude information indicating the current positions of the base stations 3, 60 and 61 provided by the three base stations 3, 60 and 61, respectively, and three types of timings notified in step SP5. Identify the current position based on the advance TA1 (TA2), TA60 and TA61, and the radio wave propagation speed, and move to the next step SP6.

【0062】

In step SP6, the CPU 37 calculates the moving speed of the mobile phone 2 itself based on the moving distance and the moving time from the current position, and moves to the next step SP7.

【0063】

In step SP7, the CPU 37 determines whether or not the moving speed calculated in step SP6 is equal to or higher than a predetermined speed (for example, 40 [Km / h] per hour). If a negative result is obtained here, this means that the moving speed of the mobile phone 2 is, for example, less than 40 [Km / h] per hour, and the user sets the manner mode such as running by bicycle or walking. It can be determined that it does not exist in the public mobile vehicle that should be, and then the CPU 37 moves to the next step SP8.

【0064】

In step SP8, if the CPU 37 needs to make an emergency call, or if the user exists in an environment where it is not necessary to forcibly set the manner mode, the manner mode is set. Forcibly cancel the manner mode, set the power to on, and move to the next step SP9.

【0065】

In step SP9, the CPU 37 displays a notification of the release state indicating that the manner mode has been released to the display unit 32, and then moves to the next step SP12.

【0066】

On the other hand, if an affirmative result is obtained in step SP7, this means that the moving speed of the mobile phone 2 is, for example, 40 [Km / h] or more per hour, and the user is present in a public moving vehicle such as a train or a car. At this time, the CPU 37 moves to the next step SP10.

【0067】

In step SP10, the CPU 37 sets the manner mode by forcibly turning off the power so as not to disturb the surroundings because the user is likely to be in a public mobile vehicle, and the next step SP11 Move to.

【0068】

In step SP11, the CPU 37 displays a notification of the setting state indicating that the manner mode has been set to the display unit 32, moves to the next step SP12, and ends the manner mode automatic setting cancellation processing procedure.

【0069】

In the above configuration, the CPU 37 of the mobile phone 2 receives the timing advance TA1 (TA2), TA60 and TA61 from the base station 3 in its own cell and other base stations 60 and 61 in the vicinity, respectively, and these three types of timings are received. Advance TA1 (TA2), and TA60 and TA61, after identifying its current location based on the latitude and longitude information and the radio wave propagation speed of the base station 3,60 and 61, the movement time and movement distance moved based on the release Calculate the speed.

【0070】

Then, the CPU 37 of the mobile phone 2 forcibly sets the manner mode when the moving speed is equal to or higher than the predetermined speed, and forcibly cancels the manner mode when the moving speed is lower than the predetermined speed.

【0071】

As a result, the CPU 37 of the mobile phone 2 is in an environment in which the manner mode should be set based on the moving speed even when the user has forgotten to set the manner mode even though the user should originally set the manner mode. Whether or not it can be determined, and the manner mode setting cancellation can be automatically switched and controlled according to the determination result.

【0072】

As a result, the user who owns the mobile phone 2 does not have anxiety about forgetting to set or cancel the manner mode, and can use the mobile phone 2 with peace of mind.

【0073】

In addition, the CPU 37 of the mobile phone 2 is turned off by the automatic setting of the manner mode, which may have an unnecessary effect on other passengers who are using a cardiac pacemaker or the like around the user in a train or the like. In addition, it is possible to reliably prevent unnecessary influence on instruments such as airplanes.

【0074】

Furthermore, the CPU 37 of the mobile phone 2 can automatically cancel the manner mode in the case of an emergency call or when it is determined that the environment should be canceled based on the moving speed, so that the user can cancel the manner mode. Can be reliably called.

【0075】

According to the above configuration, the CPU 37 of the mobile phone 2 automatically sets or cancels the manner mode based on the moving speed, so that the user exists in an environment without causing troublesome operations. The combined operating state can be set automatically.

【0076】

In the above-described embodiment, the case where the power is set to off as the manner mode to stop the communication state has been described, but the present invention is not limited to this, and the manner mode does not sound the ringtone. In order for the user to recognize the incoming call by vibration, the setting may be switched from the ringtone notification state to the vibration notification state.

【0077】

Further, in the above-described embodiment, the case where the reference speed for switching the setting cancellation of the manner mode is set to 40 [Km / h] per hour has been described, but the present invention is not limited to this, for example, 20 [Km / h]. Various other reference speeds such as Km / h] and 60 [Km / h] per hour may be set.

【0078】

Further, in the above-described embodiment, the case where the input operation is performed by the operation key 33 has been described, but the present invention is not limited to this, and for example, a jog dial (trademark of Sony Corporation) capable of rotation operation and pressing operation is possible. The input operation may be performed via various other input means such as.

【0079】

Further, in the above-described embodiment, the case where the moving speed is calculated by the CPU 37 as the moving speed calculating means has been described, but the present invention is not limited to this, and three types of timing advance TA1 (TA2) and TA60 are described. And TA61 may be notified to the base station 3 so that the base station 3 calculates the moving speed.

【0080】

Further, in the above-described embodiment, three types of timing advance TA1 (TA2) and TA60 are provided by the antenna 11, the receiving RF unit 13, the mixer 14, the receiving interface unit 16, the demodulation circuit 17, and the communication data decoding unit 21 as receiving means. And the case where the TA61 is received has been described, but the present invention is not limited to this, and three types of timing advance may be received by a receiving means having a circuit configuration other than these.

【0081】

Further, in the above-described embodiment, the CPU 37 as a control means expands the manner mode automatic setting cancellation processing program stored in advance in the ROM 40 on the RAM 39, and the manner mode automatic setting according to the manner mode automatic setting cancellation processing program. The case where the release processing procedure is performed has been described, but the present invention is not limited to this, and the manner mode automatic setting release is not limited to this by installing the program storage medium in which the manner mode automatic setting release process program is stored in the mobile phone 2. The processing procedure may be performed.

【0082】

As a program storage medium for installing the manner mode automatic setting cancellation processing program for executing the above-mentioned series of manner mode automatic setting cancellation processing procedures on the mobile phone 2 and making it executable, for example, a floppy. Not only package media such as discs, CD-ROMs (Compact Disc-Read Only Memory), and DVDs (Digital Versatile Discs), but also semiconductor memories and magnetic disks in which the manner mode automatic setting cancellation processing program is temporarily or permanently stored. It may be realized by such as. Further, as a means for storing the manner mode automatic setting cancellation processing program in these program storage media, a wired or wireless communication medium such as a local area network, the Internet, or digital satellite broadcasting may be used, and various communication interfaces such as a router or a modem may be used. It may be stored via.

【0083】

Further, in the above-described embodiment, the case where the present invention is applied to the mobile phone 2 as a mobile wireless terminal device has been described, but the present invention is not limited to this, and the personal computer, PDA (Personal Digital Assistant), etc. It may be applied to various other portable wireless terminal devices having the telephone function of the above.

【0084】

[Effect of the invention]

As described above, according to the present invention, when wireless communication with a base station is performed at a transmission timing of a preset time slot, transmission to be transmitted from the mobile wireless terminal device to the base station according to the distance from the base station. After receiving timing information to advance the timing from at least three base stations and identifying the current position of the portable wireless terminal device itself based on the time and radio wave propagation speed indicated by the three types of received timing information, the current position By calculating the moving speed from the position and switching the operating state of the portable wireless terminal device based on the calculated moving speed, the operation suitable for the environment where the user exists without causing the user to perform troublesome operations. A portable wireless terminal device and an operating state control method that can forcibly and automatically set the state and thus can forcibly set the predetermined operating state regardless of the user's operation under a certain environment are realized. be able to.

[Simple explanation of drawings]

[Figure 1]

It is a schematic diagram which shows the whole structure of a digital cellular system.

[Figure 2]

It is a schematic block diagram which shows the circuit structure of a mobile phone.

[Fig. 3]

It is a schematic diagram provided for the explanation of the transmission timing based on the timing advance.

[Fig. 4]

It is a schematic diagram provided for the explanation of the detection method of a position and a moving speed.

[Fig. 5]

It is a flowchart which shows the manner mode automatic setting cancellation processing procedure.

[Explanation of symbols]

1 ...... Digital cellular system, 2, 9 ...... Mobile phone, 3, 7, 60, 61 ...... Base station, 32 ...... Display, 33 ...... Operation keys, 37 ...... CPU, 39 ...... RAM, 40 ...... ROM.