JPH11112415A - Mobile radio terminal and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control a terminal to reduce a speech output level from an added function unit at the time of transmitting and receiving control information to a base station by providing a speech output level reduction control means. SOLUTION: A control part 6 is provided with a transmission control part 601. The transmission recognizing part 601a of the part 601 recognizes transmission and receiving of a control signal generated in the middle of the operation of a radio unit 14 and a radio sound volume adjust-control part 601b adjust- controls the volume of a radio. Then after the finish of transmission, the volume of the radio is adjust-controlled again. Namely, at the time of transmitting/ receiving control information with respect to a base station during the operation of a radio unit 14, a speech output level from an earphone microphone set 17 is reduced. Thereby, noise, etc., offensive to the ear, which is caused by the influence of the transmitting/receiving radio wave of control information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile radio terminal having a communication function of making and receiving a call through a base station by transmitting and receiving various control information to and from a base station through a radio line. More specifically, the present invention relates to a mobile radio terminal device and a control method for controlling so as to reduce an audio output level from an additional function unit when transmitting and receiving control information to and from a base station during operation of the additional function unit.

[0002]

2. Description of the Related Art Conventionally, in this type of mobile radio terminal,
According to the characteristics of the information, media such as a telephone, a fax, a computer, and a video are selected, and various kinds of information are appropriately communicated by adjusting a communication means to a use subject.

However, in recent years, the number of users who use this type of mobile radio terminal is increasing, and some users who are not satisfied only with the above-mentioned usage form appear. Voices for forms (other functions) other than forms (communication functions) are emerging.

[0004]

SUMMARY OF THE INVENTION For the above-mentioned reason, recently, a conventional mobile radio terminal has a configuration in which a functional unit used in common with any one of the components is newly added. Proposed and developed by each company.

Therefore, when a radio unit is considered as an additional function unit newly added to this type of mobile radio terminal device, when a user operates the radio unit and receives an FM broadcast, for example, When transmission and reception of control information are performed in the mobile wireless terminal device, transmission and reception radio waves of the control information affect the radio unit.

Specifically, when receiving a radio broadcast with this type of mobile radio terminal device, the user typically listens to the radio broadcast using an earphone. Therefore, as described above,
If control information is transmitted and received while FM broadcasts are being received, the transmitted and received radio waves become harsh noises and the like, giving the user discomfort.

Therefore, the present invention solves the above problem,
It is an object of the present invention to provide a mobile radio terminal apparatus and a control method for controlling so as to reduce the audio output level from the additional function unit when transmitting / receiving control information to / from the base station during operation of the additional function unit.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, transmission and reception of various control information with a base station through a radio line allows communication via the base station. A mobile wireless terminal device having a telephone call function for performing a voice function, an additional function unit provided inside the mobile wireless terminal device and outputting sound by receiving an external broadcast wave, and configured to be insertable into and removable from the mobile wireless terminal device. And
External connection means connected to the additional function unit by being plugged in, and an audio output level reduction control for reducing an audio output level from the external connection means when transmitting control information to the base station during operation of the additional function unit And control means. According to a second aspect of the present invention, in the first aspect, the external connection means is an earphone, the additional function unit is a voice output unit, and the voice output of the additional function unit or the voice of the call function is provided. A path switching means for selectively switching the output to the earphone is provided.

According to a third aspect of the present invention, in the first aspect of the present invention, the external connection means includes a voice input means for inputting a voice signal, and the external connection means being inserted into the additional function unit to provide the voice signal. A connection means for connecting an input means to a voice input of the call function unit is provided.

A fourth aspect of the present invention is characterized in that, in the first aspect of the invention, the additional function unit is an FM radio unit that receives and demodulates and outputs an FM broadcast.

[0011] The invention according to claim 5 has a communication function for making and receiving a call through the base station by transmitting and receiving various control information to and from the base station through a radio line, and the mobile radio terminal. An additional function unit provided inside the apparatus and configured to output audio by receiving an external broadcast wave; and external connection means configured to be insertable into and removable from the mobile wireless terminal device and connected to the additional function unit by being inserted. The method for controlling a mobile radio terminal device according to claim 1, further comprising the step of reducing the audio output level from said external connection means when transmitting control information to said base station during operation of said additional function unit. The invention according to claim 6 is the invention according to claim 5, wherein the external connection means is an earphone, the additional function unit is a voice output unit, and the voice output of the additional function unit or the voice of the call function is provided. The output is selectively switched to the earphone.

According to a seventh aspect of the present invention, in the fifth aspect of the present invention, the external connection means inputs a voice signal and inserts the external connection means into the additional function unit, so that the communication function section of the communication function section is provided. It is characterized by being connected to a voice input.

According to an eighth aspect of the present invention, in the fifth aspect, the additional function unit is an FM radio unit that receives and demodulates and outputs an FM broadcast.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a mobile radio terminal according to an embodiment of the present invention;

FIG. 1 shows a PHS (Personal Ha) to which a mobile radio terminal device and a control method thereof according to the present invention are applied.
FIG. 2 is a block diagram illustrating an overall configuration of a mobile station (PS) 100 in an ndy-phone system.

As shown in FIG. 1, the mobile station PS includes an antenna 1, a radio unit 2, a modem unit 3, a TDMA unit 4, a communication unit 5, a control unit 6, a microphone 7, a speaker 8, a sounder 9, and an operation unit 10. , A display unit 11, a memory unit 12, a vibration unit 13, a radio unit 14, an acoustic path switching unit 15, an amplifier 16, and an earphone microphone set 17.

Here, the radio unit 2 includes a switch (SW) 201 for temporally switching a transmission / reception system, and an antenna 1
The receiver 202 converts the frequency of the radio frequency signal received from the receiver, amplifies and extracts a signal component, and outputs the signal component to the modem unit 3 described later, and the transmission output signal input from the modem unit 4 described later is placed on a carrier wave. It comprises a transmitting section 203 for transmitting from the antenna 1 and a synthesizer 204 for obtaining a required frequency from the transmitting frequency of the transmitting section 205 and providing the required frequency to the receiving section 202 and the transmitting section 203.

The modem unit 3 demodulates the intermediate frequency signal output from the reception unit 202 of the radio unit 2, extracts a signal component, and outputs the signal component to the TDMA unit 4.
The transmission signal output from the DMA unit 4 is subjected to quadrature phase modulation, for example, π / 4 shift QPSK (Quadrature).
Modulation unit 30 that performs modulation of Phase Shift Keying, and provides this to transmission unit 203 of radio unit 2.
And 2.

The TDMA section 4 is a demodulation section 30 of the modem section 3.
1, a TDMA decoding unit 401 for extracting a signal based on the TDMA (time division multiple access) communication method from a pre-allocated time slot, and a communication unit 5 on the other hand.
And a TDMA encoding unit 402 which inserts the PCM-modulated signal into a time slot previously assigned to a signal based on the TDMA (time division multiple access) communication method and outputs the signal to the modulation unit 302 of the modem unit 3. Is done.

The communication unit 5 includes an ADPCM transcoder 5
01, and a PCM codec 502. Under the control of the control unit 6, an audio signal from a microphone 7 described later is supplied to the TDMA unit 4, and a demodulated PCM signal from the TDMA unit is converted into an audio signal. This is given to a speaker 8 described later.

The control unit 6 controls each component in addition to various controls required for transmission and reception. And
In the present invention, the control unit 6 includes a transmission operation control unit 601. The transmission operation control unit 601 includes a transmission operation recognition unit 601a and a radio volume adjustment control unit 601b. . The transmission operation control unit 6
In 01, the transmission operation recognition unit 601a recognizes a transmission / reception operation of a control signal generated during operation of the radio unit 14,
After recognizing the transmission / reception operation, the radio volume adjustment control unit 60
1b controls and adjusts the radio volume again after the transmission operation is completed.

The microphone 7 functions as a transmitter for inputting a transmission voice signal.
The sounder 9 functions as a receiver that sounds the input received voice signal as a voice, and the sounder 9 notifies the user of an incoming call or the like by a melody or the like.

The operation unit 10 has a plurality of functions and numeric keys, and inputs various information, including a radio key for instructing the radio unit 14 to be turned on or off in the present embodiment. It is.

The display unit 11 is composed of a liquid crystal display (LCD) or the like for displaying various information.
For example, it has a display function for displaying radio information or notifying a user that a transmission operation has occurred when a transmission operation occurs during the operation of the radio unit.

The memory unit 12 stores various information required for the operation of the mobile station PS, such as a personal identification number and telephone number information.

The vibrating section 13 has a vibrator function for notifying a user of an incoming call or the like by vibration.

The radio unit 14 is a unit for receiving a radio broadcast (for example, FM broadcast) via a dedicated antenna.

The acoustic path switching unit 15 is a radio unit 1
This is a switch unit for selectively connecting the output path 4 and the audio output path of the communication unit 5 to the earphone microphone 17.

The amplifier section 16 amplifies the output signal of the radio unit 14 and outputs the amplified signal to the speaker section a in the earphone microphone set 17.

The earphone / microphone set 17 is used for the mobile station 10.
It is detachable from and attachable to the main body 0, and comprises a speaker section 17a composed of a pair of speakers and a microphone section 17b composed of a microphone. The earphone microphone set 17 may be provided with a switch unit. In this case, the switch unit has the same function as any one of the switch units of the main body operation unit 10. .

According to such a configuration, during transmission / reception of control information to / from the base station while the radio unit 14 is operating, the audio output level from the earphone microphone set 17 is reduced and controlled. Harsh noises and the like due to the influence can be prevented beforehand, thereby eliminating user discomfort.

FIG. 2 is a block diagram showing a base station CS in a PHS to which the mobile radio terminal apparatus and the control method according to the present invention are applied.
FIG. 2 is a block diagram showing the entire configuration of the embodiment.

As shown in FIG. 2, the base station (CS) includes an antenna 21, a radio unit 22, a modem unit 23, and a TDMA unit 2.
4. Interface unit 25, control unit 26, memory unit 27
It is composed of

Here, the antenna 21, the radio unit 22, the modem unit 23, the TDMA unit 24, the control unit 26, and the memory unit 2
7 has the same configuration as the mobile station PS shown in FIG.

The interface unit 25 is composed of an ADPCM transcoder 251, a PCM codec 252, a cross point switch 253, and the like.
A signal is given to the TDMA unit 24, or a TDM
The decoded signal from the A section 24 is converted into a PCM signal and supplied to the exchange.

Next, a radio channel between the mobile station PS and the base station CS will be described.

Normally, in the above-mentioned radio channel between the mobile station PS and the base station CS, a control channel for transmitting and receiving control information for synchronizing the base station CS and the mobile station PS, and voice information and data signals are transmitted. And a communication channel for transmission and reception. Then, the base station CS communicates via this control channel with the logical control channel LC including
CH (Logical Control Channel)
1) A link channel with the mobile station PS is established using a superframe. FIG. 3 shows the logical control channel LCCH (Logical Control Ch).
FIG. 3 is a diagram illustrating a configuration of an (annel) superframe 300.

As shown in FIG. 3, this LCCH superframe 300 is intermittently transmitted at a period of, for example, 150 ms, and is a unidirectional first broadcast channel BCCH.
(A), a point-to-point bidirectional individual cell channel SCCH for transferring information necessary for call connection, a paging channel PCH1, a one-way second broadcast channel BC
The frame configuration is such that CH (B), a bidirectional individual cell channel SCCH, and a paging channel PCH2 are arranged in this order.

Here, BCCH (B) is obtained by LCC
It is defined in RCR STD-28, which is a standard for digital cordless telephones, that this area is open to the business as an optional area of the H-spar frame and can be used freely by the business as an option.

FIG. 4 shows the broadcast channel B shown in FIG.
FIG. 5 is a diagram illustrating a message format 400 of CCH.

As shown in FIG. 4, this broadcast channel BC
CH is, for example, a data signal converted into burst data having a width of 625 μs, and a channel identifier (CI)
401a, caller identification code section (CS-ID) 402a, I
(BCCH) information element section 403a, CRC bit section 40
4a.

Here, the channel identifier 401a is a channel identifier indicating that this channel is a BCCH, and a code of a certain pattern is inserted.

Further, the calling identification code section 402a uses the BC
The information element section 403a contains information such as a desired request or instruction, and the CRC bit section 404a contains an error correction code. Part.

FIG. 5 is a diagram showing the message format 500 of the individual cell channel SCCH shown in FIG. 3 above. FIG. 5 (a) shows the uplink SCCH, and FIG.
CH is shown. Note that the downlink is information transmitted from the base station CS to the mobile station PS, and the uplink is information transmitted from the mobile station PS.
Transmitted to the base station CS.

As shown in FIG. 5A, the uplink SCCH is
Channel identifier (CI) 501a, destination identification code (CS-
ID) 502a, caller identification code (PS-ID) 503a,
I (SCCH) information element 504a, CRC bit part 50
5a.

Here, the channel identifier (CI) 501
For a, for example, a code of a predetermined pattern such as a constant code (“1010” in binary notation) is inserted. Also, the system ID is inserted in the destination identification code section (CS-ID) 502a, and the PS-ID is inserted in the caller identification code (PS-ID) 503a. Used for collation of etc.

Further, as shown in FIG.
H is a channel identifier (CI) 501b, a calling identification code (CS-ID) 502b, and a destination identification code (PS-ID) 5
03b, an I (SCCH) information element 504b, and a CRC bit section 505b.

FIG. 6 is a diagram showing a message format 600 of the paging channel PCH shown in FIG.

As shown in FIG. 6, the paging channel PCH has a channel identifier (CI) 601a, a calling identification code (CS-ID) 602a, and an I (PCH) information element 6.
03a, a CRC bit section 604a and the like.

The channel identifier (CI) 601 is
A constant code indicating that this signal is PCH (for example, 2
A code of a fixed pattern such as “1011” in hexadecimal notation is inserted.

Next, a transmission operation control procedure during the operation of the additional function unit of the mobile station PS in the PHS according to the present invention having such a configuration will be described.

FIG. 7 is a flowchart showing a transmission operation control procedure during the operation of the additional function unit of the mobile station PS in the PHS according to the present invention.

In FIG. 7, in the mobile station PS, the control unit 6
During the operation of the additional function unit (step 701), the transmission operation control unit 601 determines whether there is a control signal transmission / reception operation (step 702).

Then, in this determination, the transmission / reception operation is “present”.
Is determined (YES in step 702), the transmission operation control unit 601 controls to suppress the operation of the additional function unit (step 703). At this time, the transmission operation control unit 60
For example, information 1 indicating that the control signal is being transmitted / received using the display unit 11, for example, “transmitting / receiving operation” may be displayed on the screen.

Thereafter, the control unit 6 controls the transmission / reception operation of the control signal (step 704). After the control of the transmission / reception operation is completed (YES in step 705), the transmission operation control unit 601 sets the additional The functional unit operation is released (step 706).

According to such a configuration, even when a control signal transmission / reception operation occurs during the operation of the additional function unit, the operation of the additional function unit is suppressed and controlled in advance before the transmission / reception operation of the control signal. Since the transition is made, it is possible to prevent the influence of noise or the like on the additional function unit due to the transmission / reception operation of the control signal.

Next, a transmission operation control procedure during the operation of the additional function unit of the mobile station PS in the PHS according to the present invention will be described in detail by taking a location registration operation as an example of the transmission operation.

First, the PH according to the present invention having the above configuration is described.
The location registration operation of the mobile station PS in S will be described.

Normally, the mobile station PS receives position information included in the control physical slot of the broadcast channel BCCH (see FIG. 4) broadcast from the base station CS, and differs from the position information stored in the mobile station PS. In this case (for example, when the power is turned on), position information is transmitted to notify the current location to the network.

Specifically, when performing location registration, first,
The mobile station PS transmits a link channel establishment request message to the base station CS using the uplink dedicated cell channel SCCH 500a (see FIG. 5) of the LCCH superframe 300 shown in FIG. 3, and the base station CS When receiving the establishment request (SCCH), the downlink individual cell channel SCCH5 of the LCCH superframe 300 is received.
00 (see FIG. 5), by transmitting a link channel assignment message (SCCH) to the mobile station PS,
The link channel LCH is reserved.

Next, the mobile station PS establishes synchronization with the base station CS using a synchronization burst signal, establishes LCH, and sends a location registration request message to the network according to a prescribed control sequence. The mobile station PS notifies the network of a paging area in which the mobile station PS newly performs standby.

Here, when the location registration is normally performed, the base station CS transmits a location registration acceptance message to the mobile station PS, and then, with the radio channel disconnection / disconnection completion message, communicates with the mobile station PS. Release the wireless channel between.

As described above, by performing the above processing, the mobile station PS ends the position registration with respect to the network.

Next, taking the above-described location registration operation as an example,
The control procedure of the operation of transmitting and receiving the location registration information during the operation of the additional function unit of the mobile station PS in the PHS according to the present invention will be described.

FIG. 8 is a flowchart showing a location registration control procedure during the operation of the additional function unit of the mobile station PS in the PHS according to the present invention.

In FIG. 8, as described above, normally, when the mobile station PS receives the position information broadcast from the base station CS and the position information is different from the position information stored in its own station (power ON or the like), It performs location registration for the network.

Therefore, first, in the control unit 6, the transmitting operation recognizing unit 601a operates during the radio operation (step 80).
1), it is determined whether or not the location registration has been updated (step 80).
2).

If it is determined in this determination that the location registration needs to be updated (Yes) (step 802YE
S), the control unit 6 controls the radio volume adjustment control unit 60
1b adjusts the volume of the radio (step 80)
3). At this time, the frequency characteristics (tone color) may be changed, or the radio sound may be cut off to produce another sound. Also, the volume adjustment amount of the radio is controlled in advance based on a set value for preventing the user from feeling uncomfortable by considering the influence of noise accompanying the transmission operation through experiments. Here, the control unit 6 may control the display unit 11 to display, for example, “transmitting” information indicating that the transmitting operation is being performed.

After that, the control unit 6 performs prescribed position registration control (step 804). After the position registration control ends (step 805 YES), the radio volume adjustment control unit 601b adjusts the volume of the radio again. Return to the first radio volume state (step 806).

In step 804, the control unit 6 may perform control so as to sound, for example, an "electronic sound" indicating that the location is being registered. This is a measure to take a long time for location registration when the user is in a train or a tunnel, for example.

The present invention is not limited to the PHS, but may be applied to other mobile radio terminals, for example, PDC (Persona).
The present invention is also applicable to l digital cellular, pager, and the like.

[0072]

As described above, according to the present invention,
An additional function unit that is provided inside the mobile wireless terminal device and performs audio output by receiving an external broadcast wave; and is configured to be insertable into and removable from the mobile wireless terminal device, and is connected to the additional function unit by being inserted. External connection means, and when transmitting and receiving control information to and from the base station during operation of the additional function unit, so as to reduce and control the audio output level from the external connection means, during operation of the additional function unit Even when control information is transmitted / received to / from the base station, harsh noise or the like due to the influence of the transmitted / received radio waves can be prevented beforehand, and thereby discomfort of the user can be eliminated.

[Brief description of the drawings]

FIG. 1 is a mobile station (PS) in a PHS according to the present invention.
FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 shows a base station (CS) in a PHS according to the present invention.
FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a logical control channel LCCH superframe used in the PHS according to the present invention.

FIG. 4 is a diagram showing a BCCH message format shown in FIG. 3;

FIG. 5 is a diagram showing an SCCH message format shown in FIG. 3;

FIG. 6 is a diagram showing a PCH message format shown in FIG. 3;

FIG. 7 is a flowchart showing a transmission operation control procedure during operation of the additional function unit of the mobile station PS in the PHS according to the present invention.

FIG. 8 is a flowchart showing a location registration control procedure during operation of the additional function unit of the mobile station PS in the PHS according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 mobile station (PS) 1 antenna 2 radio unit 201 switch (SW) 202 receiving unit 203 transmitting unit 204 synthesizer 205 oscillator 3 modem unit 301 demodulating unit 302 modulating unit 4 TDMA unit 401 TDMA decoding unit 402 TDMA encoding unit 5 communication unit 501 ADPCM transcoder 502 PCM codec 6 Control unit 601 Incoming call priority control unit 601 a Sound path switching control unit 601 b Radio unit control unit 7 Microphone 8 Speaker 9 Sounder 10 Operation unit 11 Display unit 12 Memory unit 13 Vibration unit 14 Radio unit 15 Sound path switching Unit 16 Amplifier 17 Earphone microphone set 17a Speaker unit 17b Microphone unit 200 Base station (CS)

Claims (10)

[Claims] 1. A mobile wireless terminal device having a communication function for performing communication via the base station by transmitting and receiving various control information to and from a base station, wherein: An additional function unit that is provided and performs audio output by receiving an external broadcast wave; an external connection unit configured to be insertable into and removable from the mobile wireless terminal device and connected to the additional function unit by being inserted; A mobile radio terminal device comprising: a voice output level reduction control unit that controls to reduce a voice output level from the external connection unit when transmitting / receiving control information to / from the base station during operation of the additional function unit. 2. The mobile radio terminal device according to claim 1, wherein said audio output level decrease control means controls to decrease the audio output level from said external connection means when transmitting and receiving control information relating to location registration. 3. The external connection means is an earphone, the additional function unit is an audio output unit,
2. The mobile radio terminal device according to claim 1, further comprising a path switching unit for selectively switching an audio output of the additional function unit or an audio output of the call function to the earphone. 4. The external connection means includes a voice input means for inputting a voice signal, and a connection for connecting the voice input means to a voice input of the call function unit by inserting the external connection means into the additional function unit. 2. The mobile radio terminal according to claim 1, further comprising means. 5. The mobile radio terminal device according to claim 1, wherein the additional function unit is an FM radio unit that receives and demodulates and outputs an FM broadcast. 6. A communication function for making and receiving a call through the base station by transmitting and receiving various control information to and from the base station through a radio line, and provided inside the mobile radio terminal device, Mobile terminal device having an additional function unit for outputting sound by receiving a broadcast wave from the mobile terminal, and external connection means configured to be insertable into and removable from the mobile wireless terminal device and to be connected to the additional function unit by being inserted The control method according to any one of claims 1 to 3, characterized in that when transmitting / receiving control information to / from the base station during the operation of the additional function unit, the audio output level from the external connection means is controlled to decrease. 7. The mobile radio terminal apparatus according to claim 6, wherein the control for decreasing the audio output level includes decreasing the audio output level from the external connection unit when transmitting and receiving control information relating to location registration. Control method. 8. The external connection means is an earphone, the additional function unit is an audio output unit,
7. The control method according to claim 6, wherein a voice output of the additional function unit or a voice output of the call function is selectively switched to the earphone. 9. The external connection means is connected to a voice input of the call function unit by inputting a voice signal and inserting the external connection means into the additional function unit. A method for controlling a mobile wireless terminal device according to any one of the preceding claims. 10. The control method according to claim 6, wherein the additional function unit is an FM radio unit that receives and demodulates and outputs an FM broadcast.