WO1999038277A1 - Terminal mobile de telecommunications - Google Patents

Terminal mobile de telecommunications Download PDF

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Publication number
WO1999038277A1
WO1999038277A1 PCT/JP1999/000247 JP9900247W WO9938277A1 WO 1999038277 A1 WO1999038277 A1 WO 1999038277A1 JP 9900247 W JP9900247 W JP 9900247W WO 9938277 A1 WO9938277 A1 WO 9938277A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
transmission
rate
communication terminal
mobile communication
Prior art date
Application number
PCT/JP1999/000247
Other languages
English (en)
Japanese (ja)
Inventor
Yoshihiro Nomura
Akira Ishikura
Osamu Kurokawa
Masakuni Hyodo
Ken Nakamura
Original Assignee
Kabushiki Kaisha Toshiba
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP01116598A external-priority patent/JP3665465B2/ja
Priority claimed from JP10011171A external-priority patent/JPH11215048A/ja
Application filed by Kabushiki Kaisha Toshiba filed Critical Kabushiki Kaisha Toshiba
Publication of WO1999038277A1 publication Critical patent/WO1999038277A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/12—Generation of orthogonal codes

Definitions

  • the present invention W relates to a mobile communication terminal device of a communication system for performing communication by variably controlling a data transmission rate like a code division multiple access (CDMA) system.
  • a code division multiple access (CDMA) system like a code division multiple access (CDMA) system.
  • a communication rate is set according to the amount of transmission information such as voice. Communication is performed by variably controlling the parameters.
  • FIG. 1 is a circuit block diagram showing a configuration of a conventional mobile communication terminal device.
  • the mobile communication terminal device shown in this figure is a dual-mode wireless communication device provided with a digital-mode communication mode as a digital mode in addition to the analog mode.
  • the switching circuits 9 and 14 switch the switching control signal SWC 1 output from the control unit 24. Is switched to the PCM code processing section 8 side in accordance with.
  • a radio frequency signal (hereinafter referred to as a reception radio frequency signal) burst-transmitted from a base station (not shown) via a digital communication channel is received by antenna 1.
  • a radio frequency signal (hereinafter referred to as a reception radio frequency signal) burst-transmitted from a base station (not shown) via a digital communication channel is received by antenna 1.
  • the receiving circuit (RX) 3 After that, it is input to the receiving circuit (RX) 3 via the antenna duplexer (DUP) 2.
  • the received radio frequency signal is mixed with the receiving local oscillation signal output from the frequency synthesizer (SYN) 4 and frequency-converted to an intermediate frequency signal.
  • the frequency of the reception local oscillation signal generated from the frequency synthesizer 4 is specified by a control signal SYC from the control unit 24.
  • the received intermediate frequency signal is subjected to a quadrature demodulation process in a CDMA signal processing unit 6 and then to a despreading process to obtain a predetermined format corresponding to a data rate.
  • the conversion result is input to the voice code processing unit 7 as received data, and the data indicating the data rate among the received data is converted to the set data. Is input to the control section 24 as a reception data rate.
  • the voice code processor 7 performs an extension process on the received data obtained by the CDMA signal processor 6 in accordance with the received data rate notified from the controller 24. Then, a digital reception signal is obtained.
  • the digital reception signal is decoded into an analog reception signal by the PCM code processing unit 8.
  • the analog reception signal is input to the switching circuit 10 after passing through the switching circuit 9.
  • the switching circuit 10 is controlled to be switched by a switching control signal SWC 2 from the control unit 24, and when an earphone microphone (not shown) is not connected to a jack 17 described later. Then, the analog reception signal is input to the speaker 11 via an amplifier (not shown) and is output as loudspeaker.
  • the input voice of the speaker is input as an analog transmission signal via the microphone 12. Then, it is input to the PCM code processing unit 8 via the switching circuits 13 and 14.
  • the input voice of the speaker is jacked as an analog transmission signal via the microphone. And input to the PCM code processing unit 8 via the switching circuits 13 and 14.
  • the switching circuit 13 is switched by the switching control signal SWC2.
  • the analog transmission signal input to the PCM code processing unit 8 is subjected to a PCM encoding process, converted into a digital transmission signal, and input to the voice code processing unit 7.
  • the voice code processor 7 detects the energy of the input voice from the digital transmission signal and determines the data rate based on the detection result. Then, the digital transmission signal is compressed into a burst signal having a format corresponding to the data rate, and is input to the CDMA signal processing unit 6 as transmission data. The above data rate is used as the transmission data rate by the control unit.
  • FIG. 2 is a diagram showing the relationship between the analog transmission signal input to the PCM code processing section 8 and the transmission data rate determined by the voice code processing section 7. As shown in this figure, The unit 7 compresses the digital transmission signal into a burst signal of a format having a high data rate step by step as the amount of energy of the input voice increases. That's it.
  • the CDMA signal processor 6 performs spreading processing on the transmission data using a PN code corresponding to the transmission channel. Then, a quadrature modulation process is performed on the processing result, and the result is input to a transmission circuit (TX) 5 as a quadrature modulation signal.
  • TX transmission circuit
  • the quadrature modulated signal is a burst signal of a rate corresponding to the energy amount of the input voice described above.
  • the transmission circuit 5 combines the quadrature modulated signal with a transmission local oscillation signal and converts it into a radio frequency signal. Then, based on the transmission data rate notified by the control section 24, the transmission circuit 5 amplifies only the effective portion of the above-mentioned radio frequency signal at a high frequency to generate a transmission radio frequency signal. Output.
  • the transmission local oscillation signal is output from the frequency synthesizer 4 in response to an instruction from the control unit 24.
  • the transmission radio frequency signal in which only the effective part is amplified by the transmission circuit 5 is an antenna. The signal is supplied to the antenna 1 via the duplexer 2, whereby the burst transmission from the antenna 1 to the base station (not shown) is performed.
  • the switching circuits 9 and 14 are switched by the switching control signal SWC 1 output from the control section 24 to the analog audio circuit 15 side. It has been switched to
  • the radio frequency signal transmitted from the base station (not shown) via the analog communication channel was received by the antenna 1. Then, the signal is input to the receiving circuit 3 via the antenna duplexer 2 and frequency-converted into an intermediate frequency signal by the receiving circuit 3. The reception intermediate frequency signal output from the reception circuit 3 is input to the analog audio circuit 15.
  • the received intermediate frequency signal is reproduced as an analog reception signal by FM demodulation.
  • This analog reception signal is input to the switching circuit 10 after passing through the switching circuit 9.
  • the switching circuit 10 is controlled to be switched by a switching control signal SWC 2 from the control section 24, and depends on whether or not an earphone microphone is connected to a jack 17 described later. Then, the analog receiving signal is output to the output terminal 17 1 of the jack 17 or the jack 17.
  • the input voice of the speaker may pass through the microphone 12 depending on whether the earphone microphone is connected to the jack 17 or not. Is input from the input terminal 17 2 of the jack 17 via the earphone microphone, and is transmitted as an analog transmission signal via the switching circuits 13 and 14 to the analog voice. Input to circuit 15.
  • a modulation signal subjected to FM modulation is generated in accordance with the transmission signal, and the modulation signal is input to the transmission circuit 5.
  • the modulated signal is mixed with a transmission local oscillation signal corresponding to the radio frequency of the analog communication channel generated from the frequency synthesizer 4 and is added to the radio frequency signal. It is converted and further high-frequency amplified to a predetermined output level.
  • the radio frequency signal output from the transmitting circuit 5 is The signal is supplied to the antenna 1 via the antenna sharing device 2 and transmitted from the antenna 1 to a base station (not shown).
  • the control section 24 is, for example, a micro-computer as a main control section, which controls each section in an integrated manner, and establishes a communication link with a base station (not shown) to establish voice and data communication.
  • a control function for recording / reproducing the voice of the other party using the storage unit 21 described later is provided.
  • the storage unit 21 uses, for example, a semiconductor memory such as a ROM or a RAM as a storage medium.
  • the storage medium stores the control program of the control unit 24 and its own ID data necessary for authentication.
  • an area for storing various control data relating to transmission / reception control, various setting data, dial data corresponding to a shortened dial, etc., and voice data of a communication partner is provided.
  • the console unit (CU) 22 has keys such as a dial key, a call key, an end key, a volume control key, and a mode designation key, as well as the telephone number of the communication partner terminal and the operation status of the device.
  • keys such as a dial key, a call key, an end key, a volume control key, and a mode designation key, as well as the telephone number of the communication partner terminal and the operation status of the device.
  • the jack 17 is used to electrically connect the earphone microphone by inserting a plug of a predetermined shape, so that the analog reception signal reproduced from the reception signal is used.
  • To the earphone microphone and an input terminal 172 for inputting the analog transmission signal input from the earphone microphone to the switching circuit 13. Have.
  • Reference numeral 31 denotes a power supply circuit. In this power supply circuit 31, a predetermined operating power supply voltage Vcc is generated based on the output of the battery 30, and is supplied to each circuit.
  • a radio frequency signal of a communication rate (transmission data rate) corresponding to the amount of transmission information such as voice is generated, and this radio frequency signal is used effectively. High-frequency amplification of only the part is performed to transmit the noise.
  • the transmission circuit 5 amplifies only the effective portion of the radio frequency signal, the communication is performed with power consumption corresponding to the amount of information to be transmitted, and communication is performed efficiently. Will be done.
  • the transmission data rate automatically fluctuates in accordance with the amount of transmission information, so that the user is not allowed to operate. Cannot be fixed to any communication rate.
  • the present invention has been made to solve the above-mentioned problem, and has as its object to provide a mobile communication terminal device capable of transmitting data at a rate requested by a user. Another object of the present invention is to provide a mobile communication terminal device capable of transmitting data at a rate in a range requested by a user.
  • Another object of the present invention is to enable the analog audio signal on the receiving side to be reproduced clearly even when a special earphone microphone for a hearing-impaired person is used. It is intended to provide a simple mobile communication terminal device.
  • a mobile communication terminal device varies a transmission rate with a base station connectable to a public network based on information of transmission data.
  • Signal generation means for converting the transmission data to a signal at a transmission rate corresponding to the information received from the user
  • a transmission means for amplifying a signal obtained from the signal generation means in accordance with the transmission rate and transmitting the amplified signal to a base station is provided.
  • the transmission data is converted into a signal at a transmission rate corresponding to information received from a user, and the signal is amplified and transmitted according to the transmission rate. I am trying to do it.
  • transmission data can be transmitted to the base station at a transmission rate specified by the user, regardless of the amount of input information.
  • the present invention is characterized in that the signal generating means converts the transmission data into a transmission rate signal received from a user.
  • the transmission data is converted into a signal of the transmission rate directly received from the user, and the signal is amplified and transmitted according to the transmission rate. I'm doing it.
  • transmission data can be transmitted to the base station at a transmission rate desired by the user, regardless of the input amount of information.
  • the signal generating means when the signal generating means receives a request from a user to prioritize battery saving, the signal generating means converts the transmission data into a preset low-rate signal.
  • transmission data is converted into a preset low-rate signal in response to a battery saving request from a user, and the signal is converted into the above-described signal.
  • the signal is amplified according to the transmission rate and transmitted.
  • the transmission data is transmitted to the base station at a low transmission rate regardless of the amount of input information. be able to.
  • the present invention is characterized in that the signal generation means converts the transmission data into a preset high-rate signal when a request for prioritizing communication quality is received from a user. I do.
  • transmission data is set in advance at a high-rate signal in response to a request from the user for priority on speech quality.
  • the signal is converted to a signal, and the signal is amplified according to the transmission rate and transmitted.
  • the mobile communication terminal device communicates with a base station connectable to a public network by changing a transmission rate according to the information amount of transmission data.
  • a signal generation means for converting transmission data into a signal of a transmission rate in a range according to information received from a user according to the amount of information,
  • a transmission means for amplifying the signal obtained by the signal generation means in accordance with the transmission rate and transmitting the amplified signal to a base station is provided.
  • the transmission data is converted into a signal having a transmission rate in a range specified by a user, and the signal is amplified and transmitted according to the transmission rate.
  • the mobile communication terminal having the above configuration, it is possible to transmit the transmission data to the base station at a transmission rate in a range specified by the user, regardless of the amount of input information. it can.
  • the present invention is characterized in that the signal generating means converts the transmission data into a signal of a transmission rate in a range accepted from a user.
  • the transmission data is transmitted to the user. Then, the signal is converted into a signal of the transmission rate in the range directly received from the receiver, and this signal is amplified and transmitted according to the above-mentioned transmission rate.
  • the mobile communication terminal having the above configuration, it is possible to transmit transmission data to the base station at a transmission rate in a range desired by the user, regardless of the amount of input information. .
  • the transmission data is converted to a signal within a predetermined rate or less. It is characterized by conversion.
  • transmission data is converted into a signal within a predetermined range or less according to a battery saving request from a user, and this signal is transmitted.
  • the signal is amplified according to the rate and then transmitted.
  • the transmission data is transmitted to the base station at a low transmission rate regardless of the amount of input information. Can be sent.
  • the signal generation means converts the transmission data into a signal having a rate equal to or greater than a preset rate. This is the feature.
  • transmission data is converted into a signal in a range equal to or higher than a preset rate in response to a request from the user for priority on speech quality, and this signal is converted to a transmission rate.
  • the corresponding amplification Perform it and send it.
  • the mobile communication terminal device provides a mobile communication terminal with a base station connectable to a public network in accordance with the amount of information of transmission data.
  • a mobile communication terminal device that performs burst communication by changing a transmission rate In a mobile communication terminal device that performs burst communication by changing a transmission rate,
  • Connection means for connecting voice input / output means for inputting / outputting voice; connection detection means for detecting whether or not the voice input / output means is connected to the connection means;
  • connection detecting means detects connection of the voice input / output means, a burst signal generating means for converting transmission data into a burst signal of a predetermined transmission rate;
  • the transmission means for transmitting a burst signal obtained from the burst signal generation means based on a preset transmission rate is provided.
  • the connection detecting means detects the connection of the voice input / output means
  • the transmission data is converted into a burst signal of a preset transmission rate
  • the transmitting means transmits the transmission rate signal.
  • the burst signal obtained by the burst signal generating means is transmitted based on the burst signal.
  • a high-speed transmission rate can be set as the transmission rate preset in the burst signal generation means. Setting the transmission rate reduces the intermittent amplification when amplifying the transmitted burst signal when a special earphone microphone for the hearing impaired is connected. Even when the above microphone is used, the analog audio signal on the receiving side can be reproduced clearly.
  • the transmission rate may be set by the user.
  • FIG. 1 is a circuit block diagram showing a configuration of a conventional mobile communication terminal device.
  • FIG. 2 is a diagram showing a relationship between an analog transmission signal and a transmission data rate determined by a voice code processing unit of the mobile communication terminal device shown in FIG.
  • FIG. 3 is a diagram for explaining the relationship between the burst signal transmitted from the mobile communication terminal device shown in FIG. 1 and the energy amount of the input voice.
  • FIG. 4 is a circuit block diagram showing the configuration of the first embodiment of the mobile communication terminal device according to the present invention.
  • FIG. 5 is a circuit block diagram showing the configuration of the second embodiment of the mobile communication terminal device according to the present invention.
  • FIG. 4 shows the configuration, and in addition to the analog mode, a digital mode CDMA communication mode is provided.
  • FIG. 4 the same parts as those in FIG. 1 showing the configuration of the conventional mobile communication terminal apparatus are denoted by the same reference numerals.
  • the switching circuits 9 and 14 perform PCM encoding in accordance with the switching control signal SWC 1 output from the control unit 20. Switch to the control section 8 side.
  • a radio frequency signal (hereinafter referred to as a reception radio frequency signal) burst-transmitted from a base station (not shown) via a digital communication channel is received by antenna 1. After that, it is input to the receiving circuit (RX) 3 via the antenna duplexer 2 (DUP).
  • the reception circuit 3 mixes the reception radio frequency signal with the reception local oscillation signal output from the frequency synthesizer (SYN) 4 and converts the frequency to an intermediate frequency signal. Note that the frequency of the reception local oscillation signal generated from the frequency synthesizer 4 is instructed by a control signal SYC from the control unit 20.
  • the received intermediate frequency signal is subjected to a quadrature demodulation process in a CDMA signal processing unit 6 and then to a despreading process to obtain a predetermined format according to a data rate.
  • the result of the conversion is input to the voice code processor 71 as reception data, and the reception data is converted to the data indicating the data rate. Is the control unit 2 as the reception data rate. Entered as 0.
  • the voice code processor 71 performs an extension process on the received data obtained by the CDMA signal processor 6 in accordance with the received data rate notified from the controller 20. Obtain a digital reception signal.
  • the digital reception signal is decoded into an analog reception signal by the PCM code processor 8.
  • the analog reception signal is input to the switching circuit 10 after passing through the switching circuit 9.
  • the switching circuit 10 is controlled to be switched by a switching control signal SWC 2 from the control unit 20, and when an earphone microphone (not shown) is not connected to a jack 17 described later. Then, the analog reception signal is input to the speaker 11 via an amplifier (not shown) and is output as loudspeaker. When an earphone microphone is connected to the jack 17, the analog reception signal is output to the output terminal 17 1 of the jack 17.
  • the input voice of the speaker is input as an analog transmission signal via the microphone 12.
  • the PCM code processing unit 8 is input to the PCM code processing unit 8 via the switching circuits 13 and 14.
  • the input voice of the speaker is converted into an analog transmission signal via earphone microphone and jack 1.
  • 7 is input from the input terminal 17 2 of the PCM 7 and is input to the PCM code processing section 8 via the switching circuits 13 and 14.
  • the switching of the switching circuit 13 is controlled by the switching control signal SWC2.
  • the analog transmission signal input to the PCM code processing unit 8 is subjected to PCM encoding processing, converted into a digital transmission signal, and input to the voice code processing unit 71.
  • the voice code processor 71 detects the amount of energy of the input voice from the digital transmission signal, and determines the data rate based on the detection result. Then, the above-mentioned digital transmission is performed, and the signal is compressed into a burst signal of a format corresponding to the above-mentioned data rate, and input to the CDMA signal processing unit 6 as transmission data. You The data rate is notified to the control unit 20 as a transmission data rate.
  • the voice code processing unit 71 is notified of the digital transmission signal from the control unit 20.
  • the signal is compressed into a burst signal of a format corresponding to the rate, and is input to the CDMA signal processing unit 6 as transmission data.
  • the CDMA signal processing unit 6 performs spreading processing on the transmission data using a PN code corresponding to the transmission channel. Then, a quadrature modulation process is performed on the processing result, and the result is input to a transmission circuit (TX) 5 as a quadrature modulation signal.
  • TX transmission circuit
  • the transmission circuit 5 combines the quadrature modulated signal with a transmission local oscillation signal and converts it into a radio frequency signal. Then, the transmission circuit 5 amplifies only the effective portion of the radio frequency signal based on the transmission data rate notified by the control section 20 and performs transmission of the transmission radio frequency signal with the transmission radio frequency signal. And output.
  • the transmission local oscillation signal is output from the frequency synthesizer 4 in response to an instruction from the control unit 20.
  • the transmission radio frequency signal in which only the effective portion is amplified by the transmission circuit 5 is supplied to the antenna 1 via the antenna duplexer 2, whereby the antenna 1 transmits a base station (not shown). Burst transmission to the station is performed.
  • the switching circuits 9 and 14 are switched to the analog audio circuit 15 by the switching control signal SWC 1 output from the control unit 20. It has been switched.
  • the radio frequency signal transmitted from the base station (not shown) via the analog communication channel is received by the antenna 1 and then via the antenna duplexer 2.
  • the signal is input to the receiving circuit 3, and the receiving circuit 3 converts the frequency to an intermediate frequency signal.
  • the received intermediate frequency signal output from the receiving circuit 3 is input to the analog audio circuit 15.
  • the received intermediate frequency signal is reproduced as an analog reception signal by FM demodulation.
  • This analog reception signal is input to the switching circuit 10 after passing through the switching circuit 9.
  • the switching circuit 10 is switching-controlled by a switching control signal SWC 2 from the control unit 20, and depends on whether or not an earphone microphone is connected to a jack 17 described later.
  • the analog reception signal is output to the output terminal 17 1 of the jack 17 or the speed 17.
  • the input voice of the speaker is transmitted through a microphone 12 depending on whether an earphone microphone is connected to the jack 17 or not. Is input from the input terminal 17 2 of the jack 17 through the earphone microphone and is switched as an analog transmission signal by the switching circuit 13, It is input to the analog audio circuit 15 via 14.
  • a modulation signal subjected to FM modulation is generated in accordance with the transmission signal, and the modulation signal is input to the transmission circuit 5.
  • the modulated signal is mixed with a transmitting local oscillation signal corresponding to the radio frequency of the analog communication channel generated from the frequency synthesizer 4 and converted into a radio frequency signal. It is up-converted and further high-frequency amplified to a predetermined output level.
  • the radio frequency signal output from the transmission circuit 5 is supplied to the antenna 1 via the antenna duplexer 2 and is transmitted from the antenna 1 to a base station (not shown). Transmitted.
  • control unit 20 uses, for example, a micro computer as a main control unit, and controls the respective units in an integrated manner.
  • the contents of the control include, in addition to the normal control for establishing a communication link with a base station (not shown) to perform voice and data communication, for example, the voice of the other party in the memory described later. It is equipped with control functions for recording and playback using section 21.
  • control unit 20 includes a communication rate setting control unit 20a as a new control function.
  • This communication rate setting control means 20a allows the user to set the transmission data rate when the user performs an operation to specify the communication rate on the console unit 22. It is set to the specified communication rate.
  • the user operates the console unit 22 prior to communication and designates a communication rate.
  • the communication rate setting control means of the control unit 20 operates. 20a accepts the above specification, and notifies the speech code processing section 71 and the transmission circuit 5 of the received communication rate as a transmission data rate.
  • the voice code processing section 71 is notified by the communication rate setting control means 20a for the digital transmission signal input from the PCM code processing section 8.
  • the burst signal of the format corresponding to the rate is subjected to compression processing, and is input to the CDMA signal processing unit 6 as transmission data.
  • the CDMA signal processing unit 6 spreads the above transmission data using a PN code corresponding to the transmission channel, and then performs quadrature modulation processing to obtain a transmission circuit 5 as a quadrature modulation signal. To enter.
  • the transmission circuit 5 combines the quadrature modulated signal with a transmission local oscillation signal and converts it into a radio frequency signal. Then, the transmission circuit 5 amplifies only the effective portion of the radio frequency signal on the basis of the transmission data rate notified from the control section 20, and transmits the signal to the antenna sharing section 2. Output to antenna 1 via. As a result, burst transmission according to the transmission data rate is performed.
  • the transmission circuit 5 This reduces the number of intermittent amplification operations of the transmission signal, thereby stabilizing fluctuations in the power supply voltage.
  • the transmission circuit will be reduced by the lower rate.
  • the operation time for amplifying the transmission signal in (5) is reduced, so that power consumption can be reduced.
  • transmission is performed by setting the transmission data rate to the rate specified by the user through the console unit 22. be able to.
  • the present invention is not limited to the above embodiment.
  • the transmission data rate is specified before the communication.
  • a change in the transmission data rate is received, and the transmission data rate is transmitted to that rate.
  • a similar effect can be obtained by setting the rate to the same value.
  • the communication rate setting control means 20a receives the upper limit and lower limit of the transmission data rate from the user, and designates this rate to the voice code processing section 71 and the transmission circuit 5.
  • the voice code processor 71 and the transmitting circuit 5 may variably control the transmission data rate within the range according to the amount of transmission information such as voice.
  • low-les communication rate setting control section 2 0 a is has been set when attached accept requests that take precedence saving user or mules Tsu Te Li, transmit data record over preparative advance A certain rate may be set lower than a certain rate so that transmission is performed.
  • the transmission data rate is set in advance to a high rate.
  • a certain rate may be set to a certain rate or more to transmit.
  • FIG. 5 shows the configuration, and in addition to the analog mode, a digital mode communication mode is provided as a digital mode.
  • FIG. 5 the same parts as those in FIG. 4 showing the configuration of the mobile communication terminal apparatus of the first embodiment are denoted by the same reference numerals, and different parts will be mainly described.
  • the jack 16 is formed by inserting the plug of the above-mentioned earphone microphone or the plug 400 of the earphone microphone 40 for a hearing-impaired person.
  • Output terminal for electrically connecting the earphone microphone to the mobile communication terminal and the analog reception signal reproduced from the received signal to the earphone microphone.
  • an input terminal 162 for inputting an analog transmission signal input from the earphone microphone to the switching circuit 13.
  • the jack 16 is provided with an earphone microphone identification switch 163 and has a relay.
  • This earphone identification switch 16 3 When the plug 400 of the earphone microphone 40 for the hearing-impaired is connected, it is pressed down by the convexity for identification 400 provided on the plug 400.
  • control unit 20 includes a communication rate setting control unit 20b as a new control function.
  • the communication rate setting control means 20b is used by the earphone microphone connection detection unit 23 described later for the hearing impaired to the jack 16 when the digital mode is set.
  • the transmission data rate is set to the full rate.
  • the earphone microphone connection detection unit 23 monitors whether or not the earphone microphone identification switch 163 has been pressed, and this monitoring allows the jack to be detected. In step 16, it is determined whether or not the earphone microphone 40 for the hearing-impaired is connected.
  • the earphone microphone 40 for the hearing-impaired has a plug 400, a vibration section 41, and a vibration detection section 42. Further, the plug 400 serves as an input terminal 401, an output terminal 402, and an identification convex portion 4003.
  • the input terminal 401 When the plug 400 is connected to the jack 16, the input terminal 401 is electrically connected to the output terminal 161, and the analog signal input through this terminal is connected to the input terminal 401.
  • the output terminal 402, which inputs the transmission signal to the vibrating section 41, is electrically connected to the input terminal 162 when the plug 400 is connected to the jack 16,
  • An analog transmission signal from a vibration detection unit 42 described later is input to an input terminal 162.
  • the vibrating section 41 is used by being brought into contact with the eardrum or a human body near the eardrum, and converts an analog transmission signal input through the input terminal 401 into vibration. This vibration is transmitted to the eardrum.
  • the vibration detection unit 42 is used by contacting the head or neck of the human body, so that the voice emitted by the user is detected as an electric signal from the vibration of the human body and the analog transmission signal is used. Input to output terminal 402.
  • the earphone microphone identification switch 16 3 is pressed by the identification projection 40 3. Be done. Then, the earphone / mic connection detection unit 23 detects the connection of the hearing-impaired earphone / mic 40 and notifies the control unit 20 of this connection.
  • the communication rate setting control means 20b of the control unit 20 is notified of the detection of the connection. Therefore, it instructs the speech codec 71 and the transmission circuit 5 to set the transmission data rate to the full rate.
  • the voice code processor 71 converts the digital transmission signal input from the PCM code processor 8 into a full rate signal.
  • the compression processing is performed on the burst signal of the format described above, and the compressed signal is input to the CDMA signal processing unit 6 as transmission data.
  • the CDMA signal processing unit 6 performs spreading processing on the transmission data using a PN code corresponding to a transmission channel, performs quadrature modulation processing, and inputs the data to the transmission circuit 5 as a quadrature modulation signal.
  • the transmission circuit 5 combines the quadrature modulated signal with a transmission local oscillation signal and converts it into a radio frequency signal. Then, the transmission circuit 5 amplifies in units of transmission frames since the communication rate setting control means 20b instructs the full rate. The high frequency amplified radio frequency signal is output to antenna 1 through antenna duplexer 2.
  • the mobile communication terminal device when performing communication in the digital mode, communication is performed with the hearing-impaired earphone microphone 40 connected. And try to send at full rate.
  • the special earphone microphone 40 for the hearing impaired when used, the intermittent widening operation of the transmission signal in the transmission circuit 5 is not performed, and instead. Thus, the width operation is performed in transmission frame units. As a result, the effect of the radio frequency signal received by the antenna 1 on the analog signal on the receiving side can be suppressed, and the analog voice signal received can be reproduced clearly. You.
  • the present invention is not limited to the above embodiment.
  • the communication rate setting control means 20 b when the communication rate setting control means 20 b is connected to the hearing-impaired earphone microphone 40, the setting is performed.
  • the transmission rate to be used is set to the full rate, it is not limited to this, but if the transmission rate is fixed to a high-speed transmission rate higher than the half rate, intermittent Since the number of amplifying operations is reduced compared to the case of automatic variable operation, the analog audio signal on the receiving side can be reproduced clearly. This transmission rate may be set by the user.
  • the hearing microphone 40 for the hearing impaired is connected to the mobile communication terminal device prior to the communication.
  • the earphone microphone connection detection unit 23 detects this state and notifies the control unit 20. The same effect can be obtained even if the communication rate setting control means 20b performs communication by setting the transmission data rate to the full rate.
  • the communication rate setting control means 20b sets the transmission data rate to the full rate when the deaf person's earphone microphone 40 is connected. It was decided to be.
  • the communication rate setting control means 20b transmits the transmission data rate in the range of the transmission data rate higher than the preset rate. It may be variably controlled according to the amount of transmission information such as. Even with such a configuration, the intermittent amplification operation in the transmission circuit 5 is reduced, so that when the earphone microphone 40 for the hearing impaired is used, the analog signal on the receiving side is used. Audio signals can be reproduced clearly.
  • the range of the transmission data rate may be set by the user. It goes without saying that various modifications can be made without departing from the gist of the present invention, and the present invention can be similarly implemented.
  • transmission data is converted into a signal at a transmission rate based on information specified by a user and transmitted. Therefore, according to the present invention, it is possible to provide a mobile communication terminal device capable of transmitting transmission data at a transmission rate specified by a user.
  • transmission data is converted into a signal of a transmission rate in a range based on information specified by a user, and transmitted. Therefore, according to the present invention, it is possible to provide a mobile communication terminal device capable of transmitting transmission data at a transmission rate in a range specified by a user.
  • the transmission data is converted into a burst signal of a predetermined transmission rate, and the burst signal is converted based on the transmission rate.
  • the transmission burst signal will be transmitted when a special earphone microphone for the hearing impaired is connected. Intermittent amplification during amplification is reduced, and the effect of the received radio frequency signal on the analog reception signal can be suppressed.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un terminal mobile de télécommunications pouvant transmettre des données à la vitesse requise par les utilisateurs. En mode numérique, l'utilisateur choisit sur un pupitre (22) la vitesse de transmission qu'un moyen de commande indique à une section de traitement de codes vocaux (71), et à un circuit de transmission (5). La section de traitement de codes vocaux (71) comprime le message numérique de transmission fourni par une section de traitement de code MIC (8) et le convertit en un format correspondant à la vitesse indiquée par un contrôleur (20). Le signal résultant est étalé et modulé en en quadrature dans une section (6) de traitement de signaux AMCR. Le circuit de transmission mélange le signal résultant au signal de l'oscillateur local pour donner un signal radio qu'il amplifie et transmet dans une salve à la vitesse indiquée par le moyen de fixation (20a) de la vitesse de transmission.
PCT/JP1999/000247 1998-01-23 1999-01-22 Terminal mobile de telecommunications WO1999038277A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP01116598A JP3665465B2 (ja) 1998-01-23 1998-01-23 移動通信端末装置
JP10011171A JPH11215048A (ja) 1998-01-23 1998-01-23 移動通信端末装置
JP10/11165 1998-01-23
JP10/11171 1998-01-23

Publications (1)

Publication Number Publication Date
WO1999038277A1 true WO1999038277A1 (fr) 1999-07-29

Family

ID=26346565

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/000247 WO1999038277A1 (fr) 1998-01-23 1999-01-22 Terminal mobile de telecommunications

Country Status (2)

Country Link
CN (1) CN1256824A (fr)
WO (1) WO1999038277A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220239545A1 (en) * 2021-01-22 2022-07-28 Toshiba Tec Kabushiki Kaisha Communication apparatus and communication method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07303093A (ja) * 1994-04-28 1995-11-14 At & T Corp 無線通信方法、無線基地局、及び無線デバイス
JPH0865273A (ja) * 1994-05-13 1996-03-08 At & T Corp トランスミッタユニット及びコード分割多重アクセス実現方法
JPH08509349A (ja) * 1994-02-17 1996-10-01 モトローラ・インコーポレイテッド 通信システムにおいて符号化レートを制御する方法および装置
WO1997002668A1 (fr) * 1995-06-30 1997-01-23 Motorola Inc. Commande de puissance destinee a des systemes de communications a acces multiple par code de repartition (amcr)
JPH09506231A (ja) * 1994-07-29 1997-06-17 クゥアルコム・インコーポレイテッド 可変レート通信システムにおいて電力を制御するための方法及び装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08509349A (ja) * 1994-02-17 1996-10-01 モトローラ・インコーポレイテッド 通信システムにおいて符号化レートを制御する方法および装置
JPH07303093A (ja) * 1994-04-28 1995-11-14 At & T Corp 無線通信方法、無線基地局、及び無線デバイス
JPH0865273A (ja) * 1994-05-13 1996-03-08 At & T Corp トランスミッタユニット及びコード分割多重アクセス実現方法
JPH09506231A (ja) * 1994-07-29 1997-06-17 クゥアルコム・インコーポレイテッド 可変レート通信システムにおいて電力を制御するための方法及び装置
WO1997002668A1 (fr) * 1995-06-30 1997-01-23 Motorola Inc. Commande de puissance destinee a des systemes de communications a acces multiple par code de repartition (amcr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220239545A1 (en) * 2021-01-22 2022-07-28 Toshiba Tec Kabushiki Kaisha Communication apparatus and communication method

Also Published As

Publication number Publication date
CN1256824A (zh) 2000-06-14

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