JP2012095267A - Communication apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the following problem with a conventional mobile phone: because a user cannot intentionally control transmission power, he/she cannot suppress power consumption by reducing transmission power according to the circumstances, which shortens the service life of its battery.SOLUTION: A mobile phone includes means that allows a user to set its transmission power small. Thus, the user can intentionally set the transmission power small according to the circumstances, thereby suppressing power consumption of the mobile phone and lengthening the service life of the mobile phone for long continuous running time.

Description

  The present invention relates to a radio transceiver, and more particularly to a technique for controlling transmission power of a radio transceiver.

  In recent years, wireless terminals (hereinafter referred to as wireless terminals) in mobile communication systems, such as mobile phones using batteries as power sources and mobile PCs with built-in communication devices, have become widespread, making full use of various power-saving technologies. Technology development is underway to extend the continuous operation time as much as possible.

On the other hand, looking at the breakdown of the power consumption of wireless terminals, the ratio related to transmission is large. The transmission power is determined based on the signal strength and quality of a received signal received from a wireless base station (hereinafter referred to as a wireless base station) in a mobile communication system.
As an example of the prior art, the technique described in Patent Document 1 is a technique for determining the transmission power by measuring the strength of a received signal in wireless communication.
JP 07-226710 A

  However, since the conventional wireless terminal cannot control transmission power by the user, the transmission power cannot be reduced by the user to suppress power consumption when the power is turned on. For this reason, in environments where radio waves from radio base stations are difficult to reach, wireless terminals transmit at the maximum output, which is one of the causes of consuming power and shortening continuous operation time, contrary to user expectations. It was.

  An object of the present invention is to provide a radio transceiver capable of suppressing unintentional power consumption and extending a continuous operation time by a user intentionally controlling transmission power, and its control means. is there.

A radio wave radiated from a radio base station with a predetermined transmission power is received by a radio terminal after receiving a propagation loss in a route up to reception.
Similarly, the radio wave radiated from the radio terminal is received by the radio base station after receiving the same amount of loss as the propagation loss on the route up to reception. In this way, the transmission loss is the same between the transmission side and the reception side, so communication is symmetrical.
Usually, the maximum transmission power of the radio base station and the radio transceiver is different.
Even if the transmission output of the radio base station and the radio terminal is different, the system is designed so that the symmetry of communication is maintained in consideration of the characteristics of the antenna and the noise figure of the receiver.
Here, when only the transmission power of the wireless terminal is lowered, the signal received by the wireless base station becomes weak, and “communication symmetry” does not hold. In order to make the communication symmetrical, it is only necessary to reduce the reception sensitivity to match the transmission power reduced by the wireless terminal.
An object of the present invention is to make it possible to vary the transmission power with the intention of the user while ensuring this “symmetry of communication”.

The wireless transceiver includes transmission power control means and reception sensitivity control means, and the transmission power control means and reception sensitivity control means are controlled by a single operation.
Controlling the transmission power control means and the reception sensitivity control means by a single operation is performed in a state where the power of the wireless transceiver is turned on, for example, turning the power from on to off. Thus, it is not included that the transmission power and the reception sensitivity become 0 simultaneously.

  Furthermore, the wireless transmitter / receiver described above is characterized in that communication with the other party in wireless transmission / reception stronger than a pre-registered radio wave intensity is established by controlled reception sensitivity.

  Furthermore, in the above-described wireless transceiver, the transmission power and the reception sensitivity can be simultaneously reduced or returned to normal by a control signal generated by the user's operation.

  Furthermore, the wireless transceiver described above is characterized in that the transmission power and the reception sensitivity can be simultaneously reduced or returned to normal by a control signal generated by transmitting information from the outside and performing remote operation.

  Furthermore, in the above-described wireless transceiver, when the transmission power and the reception sensitivity are reduced, when transmitting to the other party in the information transmission registered in advance, the reduced transmission power returns to normal. Features.

  Further, in the above-described wireless transceiver, when the transmission power and reception sensitivity are reduced, when the incoming call is received from the other party in the information transmission registered in advance, the reduced transmission power returns to normal. Features.

Furthermore, in the above-described wireless transceiver, when a specific event set in advance is detected in a state where transmission power and reception sensitivity are reduced, the reduced transmission power returns to normal. .
Here, the specific event refers to a state in which the reduced communication power may be automatically returned to the normal state without any user operation.
For example, when wired earphones are connected, or when wired microphones are connected, or when wireless earphones are connected, or when wireless microphones are connected The transmission power that has been reduced returns to normal when the mobile station is in a pre-registered area and / or in a pre-registered time zone.

  Further, the wireless transmitter / receiver described above includes transmission power control means and reception sensitivity control means, wherein the transmission power control means and reception sensitivity control means have a common control signal and operate the control signal. The wireless transmitter / receiver can simultaneously reduce the transmission power and the reception sensitivity or return to normal, and the wireless transmitter / receiver can communicate with the other party in the wireless transmission / reception stronger than the pre-registered radio wave intensity by the reduced reception sensitivity. A wireless transmitter / receiver to be established, the wireless transmitter / receiver having position detecting means, and detecting that the wireless transmitter / receiver is a pre-registered area can reduce transmission power or return to normal Features.

  Furthermore, in the above-described wireless transceiver, the wireless transceiver controls reception sensitivity in conjunction with transmission output.

  Furthermore, in the above wireless transmitter / receiver, the wireless device is characterized in that the sensitivity is linked to the output.

  According to the present invention, the user can determine the upper limit value of the transmission power of the wireless transceiver, and the user can control the transmission power, thereby reducing the power consumption and extending the continuous operation time. The effect of becoming is obtained. It also has the effect of weakening the influence of the radio frequency electromagnetic field on the human body.

It is a figure which shows the basic composition of the radio | wireless transmitter / receiver in 1st Embodiment of this invention. It is a figure which shows the basic composition of the radio | wireless transmitter / receiver in 2nd Embodiment of this invention. It is a figure which shows the basic composition of the radio | wireless transmitter / receiver in 3rd Embodiment of this invention. It is a figure which shows the basic composition of the radio | wireless transmitter / receiver in 4th Embodiment of this invention. It is a figure which shows the basic composition of the radio | wireless transmitter / receiver in 5th Embodiment of this invention. It is a flowchart which shows the basic operation | movement of the radio | wireless transmitter / receiver in embodiment of this invention. It is a figure which shows the example of a display of the radio | wireless transmitter / receiver in 2nd Embodiment of this invention. It is a figure which shows the example of a display of the radio | wireless transmitter / receiver in 2nd Embodiment of this invention. (A) is a figure which shows the transmission power characteristic of the radio | wireless transmitter / receiver in a prior art, (b) is a figure which shows the transmission power characteristic of the radio | wireless transmitter / receiver in this invention. External view Example of sensitivity controller circuit Transmission power controller circuit example Circuit example of control signal generator Circuit example of control signal generator Circuit example of communication establishment judgment unit Circuit example of transmission power determination unit using level limiter Circuit example of transmission power determination unit using subtractor Example of sensitivity converter circuit Circuit example of judgment unit for establishment of analog communication with built-in reference value generator Circuit example of the digital communication establishment judgment unit with built-in reference value generator

  An embodiment of the present invention will be described.

  The relationship between the mobile communication system and the embodiment of the present invention will be described below.

  The configuration of a mobile communication system that connects a mobile phone or a mobile PC with a built-in communication device includes at least a wireless terminal, a “wireless base station that is a partner in wireless transmission / reception” (hereinafter, a wireless base station), It consists of a “terminal on the other side in information transmission”.

  In this mobile communication system, when trying to establish communication from a wireless terminal on this side to a “terminal on the other side in information transmission”, a wireless base station that is the other party in wireless transmission / reception from the wireless terminal on this side. ”Through the public communication network via“ ”and connected to the“ terminal on the other side in information transmission ”.

  The present invention is a technology that can be widely applied not only to wireless terminals in mobile communication systems and wireless base stations in mobile communication systems, but also to one-to-one wireless communication. The wireless transceivers in the first to fifth embodiments will be described as an example in which the present invention is applied to a wireless terminal in a mobile communication system.

  In the embodiment of the present invention, the states indicated by the expressions “normal” and “lower than normal” are defined below for transmission power and reception sensitivity.

  The transmission power of the wireless terminal in the conventional mobile communication system cannot be changed to a desired value intentionally by the user, and the intensity of the radio wave received from the wireless base station is measured. The wireless base station and the wireless terminal have determined the transmission power of the wireless terminal.

  In the embodiment of the present invention, transmission power that is not changed by the user is “normal transmission power”, whereas transmission power that is intentionally changed by the user is “transmission power lower than normal”. .

  A radio transceiver according to the first embodiment of the present invention will be described. FIG. 1 is a diagram showing a basic configuration of a radio transceiver according to the first embodiment.

  The configuration of this wireless transceiver and the operation of each unit will be described.

  This wireless transceiver includes an “antenna” 111, a “receiver” 410, a “transmitter” 470, a “control signal generator” 450, and an “operation means” 114.

The “reception unit” 410 includes at least a “band limiter” 121, a “sensitivity controller” 122, an “automatic gain control amplifier” 123, a “channel selector” 126, and a “demodulator” 128.
The “reception signal” 331 received by the “antenna” 111 is input to the “reception unit” 410. A “demodulation signal” 332 is output from the “reception unit” 410. This “demodulated signal” 332 includes “information transmitted by the base station”.
The “sensitivity controller” 122 can change the reception sensitivity by the “correction control signal” 352 from the “control signal generator” 450.
A circuit example of the “sensitivity controller” 122 is shown in FIG.

The “transmission unit” 470 includes at least a “carrier wave generator” 171, a “modulator” 172, and a “transmission power controller” 173.
“Modulation signal” 374 including “information to be transmitted to the other party” is input to “transmission unit” 470. “Transmission unit” 470 generates “transmission signal” 375 and outputs it to “antenna” 111.
The “transmission power controller” 173 can vary the transmission power by the “correction control signal” 352 from the “control signal generator” 450.
A circuit example of the “transmission power controller” 173 is shown in FIG.

  The “operation means” 114 generates an “operation signal” 315 based on an operation performed by a user or the like, and outputs it to the “control signal generation unit” 450.

The “operation signal” 315 from the “operation means” 114 is input to the “control signal generator” 450. “Control signal generator” 450 outputs “correction control signal” 352 determined based on the state of “operation signal” 315. The “control signal generator” 450 outputs the generated “correction control signal” 352 to the “transmitter” 470 and the “receiver” 410 in common.
That is, the “transmission unit” 470 and the “reception unit” 410 are controlled by a single operation from the “operation unit” 114.
A circuit example of the “control signal generator” 450 is shown in FIG.

The operation when the transmission power of the wireless transceiver is “normal transmission power” will be described below.
The operation when the transmission power of the wireless transceiver is “normal transmission power” is equivalent to the operation of the wireless terminal of the prior art.

  When the transmission power of the wireless transceiver is “normal transmission power”, the “control signal generation unit” 450 sets the “correction control signal” to a value that maintains “normal transmission power” and “normal reception sensitivity”. 352 is generated and output to the “transmission unit” 470 and the “reception unit” 410.

  Since the “transmission power controller” 173 that is a component of the “transmission unit” 470 is input with the “correction control signal” 352 that maintains the “normal transmission power”, the “transmission unit” 470 A “transmission signal” 375 is output based on “normal transmission power”.

  In addition, since the “sensitivity controller” 122 that is a component of the “reception unit” 410 is input with the “correction control signal” 352 that maintains the “normal reception sensitivity”, the “reception unit” 410 Generates “demodulated signal” 332 according to “normal reception sensitivity”.

A problem when the transmission power is lowered will be described.
The wireless transceiver determines the transmission power according to the intensity of the radio wave received from the wireless base station.
If the radio wave received from the radio base station is strong, the radio transceiver reduces the transmission power. Conversely, if the radio wave received from the radio base station is weak, the radio transceiver increases the transmission power.
Usually, the wireless transceiver transmits with the minimum necessary transmission power.
For example, when the radio transceiver is receiving radio waves from a radio base station, if the transmission power of the radio transceiver is simply reduced, it will not reach the radio base station and communication will not be possible. Alternatively, the “communication symmetry” between the transmission output and the reception sensitivity of the wireless transceiver as viewed from the wireless base station is broken. For this reason, the radio base station and the base station network cannot operate normally for this radio transceiver.

  Here, regarding the wireless transceiver according to the first embodiment of the present invention, the operation when the transmission power is changed to “transmission power lower than normal” and the operation for preventing the above-described problem are variably attenuated to the “sensitivity controller” 122. An example using a variable attenuator will be described below.

Here, as a normal operation, the user tries to manually change the transmission power increasing or decreasing within a predetermined range to 1/10.
When the user operates “operation means” 114, “correction control signal” 352 is input from “control signal generator” 450 to “sensitivity controller” 122 (variable attenuator) and “transmission power controller” 173. The
Here, the “correction control signal” 352 has a value of 1/10.
The “transmission power controller” 173 sets the transmission power to 1/10 of the original maximum transmission power.
“Sensitivity controller” 122 (variable attenuator) sets the attenuation rate to 1/10.
Therefore, the radio transceiver according to the present invention can switch the transmission power to “transmission power lower than normal” or return to “normal transmission power” according to the operation performed by the user. In conjunction with the switching of power, the reception sensitivity is also switched to “reception sensitivity lower than normal” or returned to “normal reception sensitivity”.

  Hereinafter, a method for reducing the reception sensitivity of the “reception unit” 410 will be described.

The “sensitivity controller” 122 that is a component of the “receiving unit” 410 can be implemented by a variable attenuator and a variable amplifier.
In addition to using these, the reception sensitivity of the “reception unit” 410 can be lowered by narrowing the variable gain range of the “automatic gain control amplifier” 123.

  A radio transceiver according to the second embodiment of the present invention will be described. FIG. 2 is a diagram illustrating a basic configuration of a wireless transceiver according to the second embodiment.

  The configuration of this wireless transceiver and the operation of each unit will be described.

  This wireless transceiver includes an “antenna” 111, a “reception unit” 420, a “communication establishment determination unit” 430, a “transmission power determination unit” 460, a “transmission unit” 470, a “control signal generation unit” 450, an “operation” Means "114.

“Receiver” 420 includes at least “band limiter” 121, “automatic gain control amplifier A” 124, “automatic gain control amplifier B” 125, “channel selector” 126, “demodulator” 128, “reception level generation” Instrument "129.
The “reception signal” 331 received by the “antenna” 111 is input to the “reception unit” 420. A “demodulated signal” 332 is output from the “receiving unit” 420. This “demodulated signal” 332 includes “information transmitted by the base station”.
The “reception level generator” 129 converts the intensity and quality of the “reception signal” 331 input to the “reception unit” 420 into a “reception level signal” 335 and outputs it. The “reception level generator” 129 outputs the “reception level signal” 335 to the “communication establishment determination unit” 430 and the “transmission power determination unit” 460 simultaneously.
Note that “automatic gain control amplifier A” 124 and “automatic gain control amplifier B” 125 are not essential, and can be implemented if there is at least one “automatic gain control amplifier”.

The “communication establishment determination unit” 430 includes at least a “level comparator” 141.
The “reception level signal” 335 from the “reception unit” 420 and the “correction control signal” 352 from the “control signal generation unit” 450 are input to the “communication establishment determination unit” 430.
The “communication establishment determination unit” 430 compares the value of the “reception level signal” 335 and the value of the “correction control signal” 352 to determine the state of the “communication establishment determination signal” 343.
The “communication establishment determination signal” 343 is output in a state of “communication establishment is possible” or “communication establishment is not possible”.
A circuit example of the “communication establishment determination unit” 430 is shown in FIG.

The “transmission power determination unit” 460 includes at least a “level calculator” 163 and a “level limiter” 161.
The “reception level signal” 335 from the “reception unit” 420 and the “correction control signal” 352 from the “control signal generation unit” 450 are input to the “transmission power determination unit” 460.
The “level calculator” 163 of the “transmission power determination unit” 460 determines the transmission power from the value of the “reception level signal” 335.
The “level limiter” 161 checks whether or not the transmission power determined by the “level calculator” 163 exceeds the upper limit value based on the value of the “correction control signal” 352. Change to the upper limit. This is output as “transmission power control signal” 362 to “transmission unit” 470.
That is, since the upper limit value is limited according to the value of the “correction control signal” 352, the “transmission power control signal” 362 with the upper limit value is output, and the transmission power is suppressed to a desired value or less.
A circuit example of the “transmission power determination unit” 460 is shown in FIGS.

The “transmission unit” 470 includes at least a “carrier wave generator” 171, a “modulator” 172, and a “transmission power controller” 173.
“Modulated signal” 374 including “information to be delivered to the other party” is input to “transmitting section” 470. “Transmission unit” 470 generates “transmission signal” 375 and outputs it to “antenna” 111.
“Transmission power controller” 173 can vary the transmission power by “transmission power control signal” 362 from “transmission power determination unit” 460.
A circuit example of the “transmission power controller” 173 is shown in FIG.

  The “operation means” 114 generates an “operation signal” 315 based on the performed operation and outputs it to the “control signal generator” 450.

The “operation signal” 315 from the “operation means” 114 is input to the “control signal generator” 450. The “control signal generator” 450 determines the value of the “correction control signal” 352 to be generated based on the state of the “operation signal” 315. The “control signal generation unit” 450 outputs the generated “correction control signal” 352 to the “transmission power determination unit” 460 and the “communication establishment determination unit” 430.
A circuit example of the “control signal generator” 450 is shown in FIG.

Hereinafter, the role of the “reception level generator” 129 will be described.
“Reception level generator” 129 includes “automatic gain control amplifier A” 124, “automatic gain control amplifier B” 125, “demodulator” 128, etc. that constitute “reception unit” 420. The “reception level signal” 335 is generated based on the result of evaluating the above information and evaluating the information.
Information such as signal strength and signal error rate may be used alone. A plurality of information may be used. In that case, a plurality of pieces of information may be inputted in parallel or may be inputted after addition.

Hereinafter, the role of “communication establishment determination unit” 430 will be described.
The radio terminal receives radio waves transmitted from the radio base station, and a “reception level signal” 335 corresponding to the received signal strength is output. The “communication establishment determination unit” 430 determines that the transmission output radio wave restricted by the “correction control signal” 352 reaches the radio base station by determining the value of the “reception level signal” 335 and communication is established. Judge whether it is possible.
Accordingly, when the state of the “communication establishment judgment signal” 343 is “communication establishment failure”, there is a possibility that radio waves transmitted by the wireless terminal may not be received by the wireless base station. Even if there is a start request, the wireless terminal can be prevented from starting communication.

  It should be noted that determining that communication is established by the “reception level signal” 335 and restricting communication with a radio base station having a reception signal weaker than a pre-registered radio wave intensity does not reduce reception sensitivity. This is the same as not communicating with a radio base station having a weak received signal level.

The operation when the transmission power of the wireless transceiver is “normal transmission power” will be described below.
The operation when the transmission power of the wireless transceiver is “normal transmission power” is equivalent to the operation of the wireless terminal of the prior art.

  When the transmission power of the wireless transceiver is “normal transmission power”, the “control signal generation unit” 450 sets the “correction control signal” to a value that maintains “normal transmission power” and “normal reception sensitivity”. 352 is generated and output to the “transmission power determination unit” 460 and the “communication establishment determination unit” 430.

“Transmission power determination unit” 460 determines the value of “transmission power control signal” 362 to be output to “transmission unit” 470 based on the value of “reception level signal” 335.
That is, when the value of the “reception level signal” 335 increases, the value of the “transmission power control signal” 362 is decreased to determine that the radio base station exists at a short distance and suppress transmission power. Conversely, when the value of “reception level signal” 335 decreases, it is determined that the radio base station exists at a long distance, and the value of “transmission power control signal” 362 is increased.

  At this time, the “correction control signal” 352 input to the “transmission power determination unit” 460 is a value that maintains “normal transmission power”. Since this value is the value of “maximum transmission power”, the value of “transmission power control signal” 362 output from “transmission power determination unit” 460 to “transmission unit” 470 is controlled to the value of “maximum transmission power”. it can.

  At this time, since the “correction control signal” 352 input to the “communication establishment determination unit” 430 is a value that maintains “normal reception sensitivity”, the “communication establishment determination unit” 430 It is determined whether the “demodulation signal” 332 at that time is from a radio base station that can be reached when this radio transceiver emits radio waves with “maximum transmission power”. "343" is output as either "communication establishment is possible" or "communication establishment is not possible". This is the same operation as that of a conventional wireless terminal.

  In this state, the wireless terminal of the prior art cannot be changed by the user to change the transmission power to “transmission power lower than normal”, and the user consumes the transmission power by reducing the transmission power according to the situation. It was impossible to reduce power.

  Furthermore, if the transmission power is simply changed to a low value in some way, “the radio wave radiated from this radio transceiver will be weaker, even though the radio wave arrives from the radio base station with the same strength as before, "Problems that cannot reach the radio base station" are expected.

  Here, regarding the radio transceiver according to the second embodiment of the present invention, operations when the transmission power is changed to “transmission power lower than normal” and operations for preventing the above-described problems will be described below.

For example, when the user performs an operation to lower the transmission power of the wireless transceiver, the “control signal generator” 450 is set to a value in which “transmission power lower than normal” and “reception sensitivity lower than normal” are set. “Correction control signal” 352 is output in common to “transmission power determination unit” 460 and “communication establishment determination unit” 430.
That is, “transmission power determination unit” 460 and “communication establishment determination unit” 430 are controlled by a single operation.

“Transmission power determination unit” 460 outputs “transmission power control signal” 362 within the range of the upper limit value corresponding to the value of “correction control signal” 352 to “transmission unit” 470.
Therefore, “transmission unit” 470 outputs “transmission signal” 375 with power within the range of the upper limit value.

At the same time, “control signal generator” 450 outputs “correction control signal” 352 to “communication establishment determination unit” 430.
“Communication establishment determination unit” 430 determines whether communication can be established if the received signal level from the radio base station is higher than the value indicated by “correction control signal” 352 “communication establishment determination signal” 343. Is set to “Communication is possible”.
If a relatively weak radio wave arrives from a radio base station that is located where radio waves cannot reach when radiated from this radio terminal with “transmission power lower than normal”, the “receiver” 420 outputs Since the value of the “reception level signal” 335 is weaker than the value indicated by the “correction control signal” 352, the “communication establishment determination unit” 430 sets the state of the “communication establishment determination signal” 343 to “communication establishment failure To "".
Here, the “communication establishment determination signal” 343 may be output at the start of communication, or may be output when the “transmission signal” 375 reaches the upper limit of “transmission power lower than normal”.

  The “value indicated by the“ correction control signal ”352” is not a positive logic or a negative logic in the circuit but a value obtained by relatively comparing “normal transmission power” and “transmission power lower than normal”.

  By referring to the “communication establishment judgment signal” 343 as described above, communication is performed only with respect to the radio wave arriving from the radio base station in the range where the radio wave of “transmission power lower than normal” radiated by the radio terminal arrives. Therefore, the above-mentioned “failure that radio waves radiated from this radio transceiver becomes weak and cannot reach the radio base station even though radio waves arrive from the radio base station with the same intensity as before” occurs. Disappear.

  The above operations are summarized as a flowchart in FIG.

FIG. 9 shows the transmission power characteristics.
FIG. 9A is a diagram illustrating the transmission power characteristics of the wireless transceiver according to the prior art, and FIG. 9B is a diagram illustrating the transmission power characteristics of the radio transceiver according to the present invention.
994 in FIG. 9 represents a transmission power characteristic without correction control. 995 represents the transmission power characteristic when -10 dB is corrected. 996 represents the transmission power characteristic when -20 dB is corrected.

As described above, the radio transceiver according to the second embodiment of the present invention is a radio transceiver that allows the user to change the upper limit value of the transmission power of the radio transceiver, and changes the reception sensitivity in conjunction with the radio transceiver. Thus, it is a wireless transceiver capable of suppressing problems that may occur due to the reduction in the maximum transmission power.
Although the original “reception level signal” 335 does not decrease, a “communication establishment determination signal” 343 indicating that the “reception level signal” 335 has been decreased in a pseudo manner is output to the subsequent stage.
Thereby, it becomes possible for a user to suppress power consumption by reducing transmission power according to a condition.

  Up to this point, the user selects either “normal transmission power” or “lower transmission power” by using the changeover switch for changing the transmission power value of the wireless transceiver. Explained.

However, by using a multi-stage changeover switch, etc., the values are stepped in increments of 1W (watt), 0.5W, 0.2W, 0.1W, 0.05W, 0.01W, 0.001W, etc. The user may be able to select “transmission power lower than normal” with a value desired by the user.
Alternatively, a variable resistor or the like may be used so that the value can be continuously varied so that the user can select a “transmission power lower than normal” desired.

The upper limit value of the transmission power set by the wireless transceiver, the current transmission power, the status display regarding the raw reception intensity and the reduced reception sensitivity, and a warning message will be described.
When the upper limit value of communication power is changed and the reception sensitivity is changed in conjunction therewith, the upper limit value of the set transmission power and / or the current transmission power may be displayed.
Either or both of the signal intensity at “normal reception sensitivity” and “reception sensitivity lower than normal” may be displayed.
By lowering the upper limit value of the transmission power and lowering the reception sensitivity in conjunction therewith, it may be displayed as “out of pseudo range” when the call cannot be made. The user may be notified by other expressions, lamps, sounds, or sounds. Thereby, the user knows whether communication is possible.
When the radio wave intensity received from the “partner in wireless transmission / reception” becomes weak during a call, this may be notified to the user by display, lamp, sound, or voice.

  In addition, when the transmission power is “transmission power lower than normal”, the wireless transceiver transmits information for notifying that the transmission power is “transmission power lower than normal”. You may send it to “the other party”.

The specific operation of the wireless transceiver according to the present embodiment will be described using a general mobile phone on the market as an example.
When the power is turned on last time, the mobile phone is already set to “transmission power lower than normal”, and at the same time, the reception sensitivity is also set to “reception sensitivity lower than normal”. The maximum transmission output at this time is set to 0.1 W and reception sensitivity of -10 dB. The normal maximum transmission output is 1 W and the reception sensitivity is 0 dB.
Mobile phones are now in valley campsites far from base stations. Even the strongest base station cannot communicate with a transmission power of 0.1 W and a reception sensitivity of -10 dB. If the transmission output is 1 W and the reception sensitivity is ± 0 dB in the normal state, a call can be made.
Here, it is assumed that the user turns on the power with the mobile phone turned off. Normally, the mobile phone transmits a control signal to a receivable base station, and is registered in the base station and ready to communicate. However, since the current setting of the cellular phone is a maximum transmission output of 0.1 W and a reception sensitivity of −10 dB, communication is impossible.
At this time, the cellular phone is displayed on the display of FIG.
978 indicating transmission power indicates that the maximum transmission power is limited. 974 representing the signal intensity at the normal reception sensitivity indicates that the received signal is weak. 975 representing the signal strength at the lowered reception sensitivity indicates that reception is not possible. Since the user is set to “transmission power lower than normal” and communication is not possible, 976 indicating the out-of-pseudo range is highlighted.
FIG. 8 is a variation of the icon design of FIG.
988 representing the transmission power indicates that the maximum transmission power is limited. 984 indicating the signal intensity at the normal reception sensitivity indicates that the received signal is weak. 985 representing the signal strength at the lowered reception sensitivity indicates that reception is not possible. Since the user is set to “transmission power lower than normal” and communication is not possible, 986 representing the out of pseudo range is highlighted.
Since the user inevitably wants to talk, he presses the key switch 911 which sets the transmission power and reception sensitivity in FIG. 10 to the normal state. The transmission output of the mobile phone is 1 W, and the reception sensitivity is the maximum normal state. Thereby, a telephone call can be performed.
When the key switch 912 for setting the transmission power and reception sensitivity in FIG. 10 to a lower state than normal is pressed after the call is finished, the maximum transmission power is 0.1 W and the reception sensitivity is −10 dB.

  A wireless transceiver according to the third embodiment of the present invention will be described. FIG. 3 is a diagram illustrating a basic configuration of a wireless transceiver according to the third embodiment.

  This wireless transceiver is a wireless transceiver having a different configuration while having the same effect as the wireless transceiver in the second embodiment.

In the wireless transceiver according to the second embodiment, the “correction control signal” 352 is input to the “transmission power determination unit” 460 and the “communication establishment determination unit” 430 at the same time so that the transmission power and the reception sensitivity are linked. I have control.
Further, in order to determine that good communication with the radio base station can be expected, the “communication establishment determination unit” 430 compares the value of the “reception level signal” 335 with the value of the “correction control signal” 352. Yes.

When compared with the wireless transceiver in the second embodiment, the wireless transceiver in the third embodiment is provided with a “sensitivity converter” 112 on the input side of the “communication establishment judgment unit” 440, The “determination unit” 440 includes a “reference value generator” 142 in addition to the “level comparator” 141.
A circuit example of the “sensitivity converter” 112 is shown in FIG. Further, a circuit example of the “communication establishment determination unit” 440 is shown in FIGS. 19 and 20.

  The “correction control signal” 352 output from the “control signal generation unit” 450 is input to the “transmission power determination unit” 460 and simultaneously to the “sensitivity converter” 112. Thereby, transmission power and reception sensitivity are controlled in conjunction.

  The “reception level signal” 335 output from the “reception unit” 420 is input to the “sensitivity converter” 112. The value of the “reception level signal” 335 is converted at a conversion rate that changes in accordance with the value of the “correction control signal” 352, and is output as a “reception level signal subjected to conversion” 313.

This “converted reception level signal” 313 is input to the “communication establishment determination unit” 440 and is compared with the value generated by the “reference value generator” 142 by the “level comparator” 141. Determination unit 440 determines the state of “communication establishment determination signal” 343.
The “communication establishment determination signal” 343 is output in a state of “communication establishment is possible” or “communication establishment is not possible”.

  Note that the value generated by the “reference value generator” 142 is determined and registered by the telecommunications carrier, the device manufacturer, or the user as an appropriate value. Alternatively, the wireless transceiver may calculate and register an optimum value. Moreover, the form which combined these two or more may be sufficient.

As described above, the wireless transceiver according to the third embodiment of the present invention is a wireless transceiver that allows a user to change the upper limit value of the transmission power of the wireless transceiver, and changes the reception sensitivity in conjunction with it, By referring to the “communication establishment determination signal” 343, the wireless transceiver can suppress problems that may occur due to a decrease in the maximum transmission power.
Thereby, it becomes possible for a user to suppress power consumption by reducing transmission power according to a condition.

  A wireless transceiver according to the fourth embodiment of the present invention will be described. The fourth embodiment corresponds to the examples of claims 3 to 7. FIG. 4 is a diagram showing a basic configuration of a radio transceiver according to the fourth embodiment.

This wireless transceiver is a wireless transceiver in which “means for detecting and processing various events” 116 is added to the wireless transceiver in the second embodiment.
The “means for detecting and processing various events” 116 changes the transmission power and the reception sensitivity in association with a situation intended by the user or a situation registered in advance.

  An embodiment of the wireless transceiver according to claim 3 will be described below. Only the additional part will be described.

  This wireless transceiver is equipped with the following means, and is a wireless transceiver that can change the upper limit value of transmission power by the operation performed by the user, and changes the reception sensitivity in conjunction with it. Thus, the wireless transceiver is capable of suppressing problems that may occur when only the maximum transmission power is reduced.

  An example of the wireless transceiver according to claim 3 is a “control signal generator” capable of processing “operation means” 114, “operation command processor” 481, and “request information” 391 in the wireless transceiver according to the second embodiment. "480". A circuit example of the “control signal generator” 480 is shown in FIG.

An “operation command processor” 481 is provided on the input side of the “control signal generator” 480. An “operation unit” 114 is provided on the input side of the “operation command processing unit” 481.
The “operation signal” 315 is input from the “operation unit” 114 to the “operation command processing unit” 481. “Request information” 391 is input from the “operation command processing unit” 481 to the “control signal generation unit” 480.

  The “operation means” 114 can be implemented by a changeover switch, a push button switch, a variable resistor, or the like. When the user performs an operation, the “operation unit” 114 generates an “operation signal” 315 and outputs it to the “operation command processing unit” 481.

  The “operation command processing unit” 481 performs processing based on the “operation signal” 315 output from the “operation unit” 114, and outputs the result as “request information” 391 to the “control signal generation unit” 480.

  The “control signal generator” 480 generates and outputs a “correction control signal” 352 based on the “request information” 391.

  Thus, the upper limit value of the transmission power can be changed by the operation performed by the user, and the reception sensitivity can be changed in conjunction therewith. In addition, the upper limit value of the transmission power can be returned to the maximum.

  Therefore, it is possible to switch the transmission power to “transmission power lower than normal” or return to “normal transmission power” by the operation performed by the user, and in conjunction with the switching of the transmission power, The reception sensitivity is also switched to “reception sensitivity lower than normal” or returned to “normal reception sensitivity”.

  As an example, the “operation command processing unit” 481 and “control signal generation unit” 480 when the user operates the “operation means” 114 of the main body so that the upper limit value of the transmission power is lower than usual. The operation is shown below.

  When the user operates the “operation means” 114 of the main body, the “operation means” 114 outputs an “operation signal” 315 to the “operation command processing unit” 481.

  The “operation command processing unit” 481 processes the input “operation signal” 315 and outputs “request information” 391 for changing the upper limit value of the transmission power to the “control signal generation unit” 480.

  The “control signal generator” 480 outputs a “correction control signal” 352 for changing the upper limit value of transmission power and the reception sensitivity according to the input “request information” 391.

  An embodiment of the wireless transceiver according to claim 4 will be described below. Only the additional part will be described.

  Since this wireless transceiver includes the following means, the upper limit value of transmission power can be changed by remote control using communication means from the outside, and the reception sensitivity can be changed in conjunction with it.

  The wireless transceiver according to claim 4 includes a “control signal generator” 480 capable of processing “remote operation command detection processor” 482 and “request information” 392 in the wireless transceiver according to the second embodiment. It is a thing. A circuit example of the “control signal generator” 480 is shown in FIG.

A “remote operation command detection processing unit” 482 is provided on the input side of the “control signal generation unit” 480.
The “demodulation signal” 332 is input from the “reception unit” 420 to the “remote operation command detection processing unit” 482.
“Request information” 392 is input from “remote operation command detection processing unit” 482 to “control signal generation unit” 480.

  The “remote operation command detection processing unit” 482 detects remote operation command information from information transmitted from the outside using communication means, creates “request information” 392 from the result, and creates a “control signal generation unit”. Output to 480.

  Further, the “remote operation command detection processing unit” 482 compares the identification information such as the line number, IP address, URL, mail address, MAC address, etc. of the remote operation source with “pre-registered remote operation source identification information”. Then, it is determined whether remote operation is possible.

  “Control signal generation unit” 480 outputs “correction control signal” 352 for changing the upper limit value of transmission power and reception sensitivity based on “request information” 392 output by “remote operation command detection processing unit” 482. .

  The “remote operation source identification information registered in advance” registers information desired by any one of the communication carrier, the device manufacturer, and the user. Alternatively, the wireless transceiver may generate and register information. Moreover, the form which combined these two or more may be sufficient.

  The contents of “remote operation source identification information registered in advance” may be a line number, an IP address, a URL, a mail address, a MAC address, etc. for identifying a specific person in charge of management.

  In this remote operation, communication including operation command information in some form can be used. For example, a mail including an operation command code, a voice call signal including an operation command tone, a voice call signal including an operation command pulse, a call for calling the number of operation commands can be used.

  Also, by using this remote operation, it is possible to operate and manage the state of transmission power from one management wireless transceiver to other multiple wireless transceivers. Become.

  An embodiment of the wireless transceiver according to claim 5 will be described below. Only the additional part will be described.

  By providing the following means, this radio transceiver returns the transmission power that has been reduced to normal when making a call to a previously registered “partner in information transmission”.

  The example of the wireless transceiver according to claim 5 includes the “control signal generator” 480 capable of processing “communication partner detection comparator” 483 and “request information” 393 in the wireless transceiver according to the second embodiment. Is. A circuit example of the “control signal generator” 480 is shown in FIG.

A “communication partner detection / comparison unit” 483 is provided on the input side of the “control signal generation unit” 480.
“Request information” 393 is input from “communication partner detection comparison unit” 483 to “control signal generation unit” 480.

  The “communication partner detection / comparison unit” 483 detects identification information such as a line number, an IP address, a URL, a mail address, and a MAC address of the “partner in information transmission” to start communication from now on. The important communication partner identification information registered in advance is compared, and “request information” 393 is output to the “control signal generator” 480 based on the result.

  The “control signal generation unit” 480 maximizes or increases the upper limit value of the transmission power based on the “request information” 393 output from the “communication partner detection / comparison unit” 483, and changes the reception sensitivity in conjunction therewith. A correction control signal "352 is generated and output.

  As an example, when the transmission power is “transmission power lower than normal”, when communication is started with “partner in information transmission” registered in “important communication partner identification information registered in advance”, The transmission power that was “low transmission power” can be returned to “normal transmission power”. As for the reception sensitivity, the reception sensitivity that was “reception sensitivity lower than normal” returns to “normal reception sensitivity” in conjunction with the transmission power.

  The “important communication partner identification information registered in advance” is registered by any one of a communication carrier, a device manufacturer, and a user. Alternatively, the wireless transmitter / receiver may register a partner who has repeatedly visited. Moreover, the form which combined these two or more may be sufficient.

  In addition, the contents of the “pre-registered important communication partner identification information” include the police, firefighting and other public organizations that are generally highly urgent, family members that are considered to be highly important to users, specific friends, and workplaces. A line number, an IP address, a URL, a mail address, a MAC address, etc. for identifying a specific customer can be considered.

  An embodiment of the wireless transceiver according to claim 6 will be described below. Only the additional part will be described.

  The wireless transceiver according to claim 6, when receiving an incoming call from “an opponent in information transmission” registered in “pre-registered important communication partner identification information”, Return to "Transmission power". In addition, the reception sensitivity, which is “reception sensitivity lower than normal”, returns to “normal reception sensitivity” in conjunction with the state of transmission power.

  The embodiment of the radio transceiver in claim 6 is implemented by the configuration provided in the embodiment of the radio transceiver in claim 5.

  The “communication partner detection / comparison unit” 483 detects identification information such as the line number, IP address, URL, mail address, MAC address, etc. of the incoming “partner in information transmission”. The "partner identification information" is compared, and "request information" 393 is output to the "control signal generator" 480 based on the result.

  The “control signal generation unit” 480 maximizes or increases the upper limit value of the transmission power based on the “request information” 393 output from the “communication partner detection / comparison unit” 483, and changes the reception sensitivity in conjunction therewith. A correction control signal "352 is generated and output.

  As an example, when the transmission power is “transmission power lower than normal”, when an incoming call is received from “a partner in information transmission” registered in “pre-registered important communication partner identification information”, “transmission power lower than normal” It is possible to return the transmission power that has been changed to “normal transmission power”. As for the reception sensitivity, the reception sensitivity that was “reception sensitivity lower than normal” returns to “normal reception sensitivity” in conjunction with the transmission power.

  Note that the communication was terminated when the transmission power was returned to "normal transmission power" while communicating with the "partner in information transmission" registered in the "pre-registered important communication partner identification information". Sometimes, it is about the timing to switch the transmission power to “transmission power lower than normal” again, but this may be immediately switched to “transmission power lower than normal”, or after a certain time has passed, It may be switched to “transmission power lower than normal”. Also, the state of reception sensitivity at this time is switched in conjunction with the state of transmission power.

  An embodiment of the radio transceiver according to claim 7 will be described below.

  The embodiment of the wireless transceiver according to claim 7 is implemented by providing the wireless transceiver according to the second embodiment with the following means, and these means detect and process a specific event, so that an upper limit value of transmission power is achieved. It is a wireless transceiver that can be changed, and the reception sensitivity is changed in conjunction with it.

The following is a description of “wired earphone / microphone detection unit” 484. Only the additional part will be described.
The wireless transceiver includes the following means, so that when the wired earphone is connected or when the wired microphone is connected, the reduced transmission power returns to normal.

  In this embodiment of the wireless transceiver, the wireless transceiver in the second embodiment is provided with a “wired earphone / microphone detector” 484 and a “control signal generator” 480 capable of processing “request information” 394. is there. A circuit example of the “control signal generator” 480 is shown in FIG.

A “wired earphone / microphone detector” 484 is provided on the input side of the “control signal generator” 480.
“Request information” 394 is input from “wired earphone / microphone detection unit” 484 to “control signal generation unit” 480.

“Wired earphone / microphone detection unit” 484 detects that a wired earphone or wired microphone is connected to the main body, and outputs “request information” 394 to “control signal generation unit” 480.
The “control signal generator” 480 maximizes or increases the upper limit value of the transmission power. The reception sensitivity is changed in conjunction with it.
That is, the transmission power that was “transmission power lower than normal” is returned to “normal transmission power”. The reception sensitivity is also “reception sensitivity lower than normal”, and the reception sensitivity returns to “normal reception sensitivity” in conjunction with the state of transmission power.

The following is a description of “wireless earphone / microphone detection unit” 485. Only the additional part will be described.
The wireless transceiver includes the following means, so that when the wireless earphone is connected or when the wireless microphone is connected, the reduced transmission power returns to normal.

  In this embodiment of the wireless transceiver, the wireless transceiver according to the second embodiment includes a “wireless earphone / microphone detector” 485 and a “control signal generator” 480 capable of processing “request information” 395. is there. A circuit example of the “control signal generator” 480 is shown in FIG.

A “wireless earphone / microphone detector” 485 is provided on the input side of the “control signal generator” 480.
“Request information” 395 is input from “wireless earphone / microphone detector” 485 to “control signal generator” 480.

“Wireless earphone / microphone detector” 485 detects that a wireless earphone or a wireless microphone is connected to the main body, and outputs “request information” 395 to “control signal generator” 480.
The “control signal generator” 480 maximizes or increases the upper limit value of the transmission power. The reception sensitivity is changed in conjunction with it.
That is, the transmission power that was “transmission power lower than normal” is returned to “normal transmission power”. The reception sensitivity is also “reception sensitivity lower than normal”, and the reception sensitivity returns to “normal reception sensitivity” in conjunction with the state of transmission power.

Hereinafter, the “current position detection area comparison unit” 486 will be described. Only the additional part will be described.
This wireless transceiver includes the following means, so that when it is in a pre-registered area, the reduced transmission power returns to normal.

  In this wireless transceiver, the wireless transceiver according to the second embodiment is provided with a “control signal generator” 480 capable of processing “current position detection area comparison unit” 486 and “request information” 396. is there. A circuit example of the “control signal generator” 480 is shown in FIG.

A “current position detection area comparison unit” 486 is provided on the input side of the “control signal generation unit” 480.
“Request information” 396 is input from the “current position detection area comparison unit” 486 to the “control signal generation unit” 480.

The “current position detection area comparison unit” 486 detects current position information, compares it with “area information registered in advance”, and outputs “request information” 396 to the “control signal generation unit” 480.
The “control signal generator” 480 maximizes or increases the upper limit value of the transmission power. The reception sensitivity is changed in conjunction with it.
That is, the transmission power that was “transmission power lower than normal” is returned to “normal transmission power”. The reception sensitivity is also “reception sensitivity lower than normal”, and the reception sensitivity returns to “normal reception sensitivity” in conjunction with the state of transmission power.

The “area information registered in advance” registers desired area information by any one of the telecommunications carrier, the device manufacturer, and the user. Alternatively, this wireless transceiver may generate and register area information. Moreover, the form which combined these two or more may be sufficient.
In addition, the content of “area information registered in advance” may be the site of a medical facility.

The following is a description of the “time information acquisition time zone comparison unit” 487. Only the additional part will be described.
This wireless transceiver includes the following means, so that when it is in a pre-registered time zone, the reduced transmission power returns to normal.

  In this wireless transceiver, the wireless transceiver according to the second embodiment is provided with a “control signal generator” 480 capable of processing “time information acquisition time zone comparator” 487 and “request information” 397. It is. A circuit example of the “control signal generator” 480 is shown in FIG.

A “time information acquisition time zone comparison unit” 487 is provided on the input side of the “control signal generation unit” 480.
“Request information” 397 is input from the “time information acquisition time zone comparison unit” 487 to the “control signal generation unit” 480.

The “time information acquisition time zone comparison unit” 487 acquires the current time information, compares it with the “previously registered time zone information”, and outputs “request information” 397 to the “control signal generation unit” 480.
The “control signal generator” 480 maximizes or increases the upper limit value of the transmission power. The reception sensitivity is changed in conjunction with it.
That is, the transmission power that was “transmission power lower than normal” is returned to “normal transmission power”. The reception sensitivity is also “reception sensitivity lower than normal”, and the reception sensitivity returns to “normal reception sensitivity” in conjunction with the state of transmission power.

The “preliminarily registered time zone information” registers time zone information desired by any one of the telecommunications carrier, the device manufacturer, and the user. Alternatively, the wireless transceiver may generate and register time zone information. Moreover, the form which combined these two or more may be sufficient.
Further, the contents of the “preliminarily registered time zone information” may include a commuting time zone, a commuting time zone, a time zone for attending a cram school, and the like.

The following is a description of the “emergency notification transmission detection unit” 488. Only the additional part will be described.
This wireless transceiver includes the following means, so that when the emergency alert transmission function is used, the reduced transmission power returns to normal.

  In this embodiment of the wireless transceiver, the wireless transceiver according to the second embodiment is provided with a “control signal generator” 480 capable of processing “emergency notification transmission detector” 488 and “request information” 398. is there. A circuit example of the “control signal generator” 480 is shown in FIG.

An “emergency notification transmission detection unit” 488 is provided on the input side of the “control signal generation unit” 480.
“Request information” 398 is input from the “emergency notification transmission detection unit” 488 to the “control signal generation unit” 480.

“Emergency notification transmission detection unit” 488 detects information output from the emergency notification transmission function, and outputs “request information” 398 to “control signal generation unit” 480.
The “control signal generator” 480 maximizes or increases the upper limit value of the transmission power. The reception sensitivity is changed in conjunction with it.
That is, the transmission power that was “transmission power lower than normal” is returned to “normal transmission power”. The reception sensitivity is also “reception sensitivity lower than normal”, and the reception sensitivity returns to “normal reception sensitivity” in conjunction with the state of transmission power.

The emergency notification transmission function is provided in the main body of this wireless transceiver, and inputs the line number to the emergency notification destination in the event of an emergency such as a fire or danger. It is a function that can be immediately and easily issued without any problem.
The emergency notification destination may be a public organization such as the police or a fire department, or a security company, a school staff, a town association staff, a guardian, or the like.

Hereinafter, the “emergency warning reception detection unit” 489 will be described. Only the additional part will be described.
The wireless transceiver includes the following means, so that when the emergency alert signal is received, the transmission power that has been reduced returns to normal.

  In this wireless transceiver, the wireless transceiver according to the second embodiment is provided with a “control signal generator” 480 capable of processing “emergency alarm reception detector” 489 and “request information” 399. . A circuit example of the “control signal generator” 480 is shown in FIG.

An “emergency warning reception detection unit” 489 is provided on the input side of the “control signal generation unit” 480.
The “demodulated signal” 332 is input from the “reception unit” 420 to the “emergency warning reception detection unit” 489.
“Request information” 399 is input from “emergency warning reception detection unit” 489 to “control signal generation unit” 480.

The “emergency warning reception detection unit” 489 detects the received emergency warning signal and outputs “request information” 399 to the “control signal generation unit” 480.
The “control signal generator” 480 maximizes or increases the upper limit value of the transmission power. The reception sensitivity is changed in conjunction with it.
That is, the transmission power that was “transmission power lower than normal” is returned to “normal transmission power”. The reception sensitivity is also “reception sensitivity lower than normal”, and the reception sensitivity returns to “normal reception sensitivity” in conjunction with the state of transmission power.

  The emergency alert signal is a radio signal transmitted by operating the emergency alert transmission function. Alternatively, it may be a radio signal transmitted based on earthquake information or tsunami information issued by an administrative organization.

  A wireless transceiver according to a fifth embodiment of the present invention will be described. FIG. 5 is a diagram showing a basic configuration of a wireless transceiver according to the fifth embodiment.

  This wireless transmitter / receiver detects the current position of the wireless transmitter / receiver, and when it is in a pre-registered area, lowers the upper limit of transmission power and lowers the reception sensitivity in conjunction with it. That is, transmission power and reception sensitivity are simultaneously reduced.

  The wireless transceiver according to the fifth embodiment includes a “control signal generator” 480 capable of processing “current position detection area comparison unit” 486 and “request information” 396 in the wireless transceiver according to the second embodiment. Is. A circuit example of the “control signal generator” 480 is shown in FIG.

A “current position detection area comparison unit” 486 is provided on the input side of the “control signal generation unit” 480.
“Request information” 396 is input from the “current position detection area comparison unit” 486 to the “control signal generation unit” 480.

  The “current position detection area comparison unit” 486 detects the current position where the wireless transceiver is placed, and determines whether the position is inside or outside the area indicated by “area information registered in advance”. Thereafter, it is determined whether the transmission power state should be switched, and the result is output as “request information” 396 to the “control signal generator” 480.

The “control signal generator” 480 generates and outputs a “correction control signal” 352 based on the “request information” 396. The “correction control signal” 352 is output to the “transmission power determination unit” 460 and simultaneously to the “communication establishment determination unit” 430.
That is, “transmission power determination unit” 460 and “communication establishment determination unit” 430 are controlled by a single operation.

  Therefore, the transmission power can be switched to “transmission power lower than normal” or returned to “normal transmission power” according to the position of the radio transceiver, and linked to the switching of the transmission power. Accordingly, the reception sensitivity is switched to “reception sensitivity lower than normal” or returned to “normal reception sensitivity”.

  An example will be described in which this wireless transceiver is applied as a wireless terminal in a mobile communication system, and area information of a hospital site is registered in the “area information registered in advance”.

  In a hospital ward, if a pico cell is installed, it is possible to reduce the transmission power for the wireless terminal that the pico cell has designated as “the partner of wireless transmission / reception”. For example, the wireless terminal is near the window, If the radio wave received from a wireless base station outside the site is stronger, the wireless terminal communicates with high transmission power according to the radio wave received from the wireless base station, and as a result, it fails to suppress the transmission power. There is a fear.

  Even in such a case, similarly to the wireless transceiver in the fourth embodiment, by registering the area information of the hospital site in the “pre-registered area information”, the transmission output is surely suppressed in the hospital site. It becomes possible.

  The picocell has the role of a radio base station in a mobile communication system, which is particularly small for indoor installation that has low transmission power and ensures radio transmission and reception in a very narrow limited area. It is a radio base station.

  One example of the wireless transceivers according to the first to fifth embodiments of the present invention is described. This is because when the user changes the transmission power, at the same time, the “reception system” is also changed in some way to suppress the harmful effects that may occur when the transmission power is changed. It can prevent confusion.

  In addition, the wireless transceivers according to the first to fifth embodiments of the present invention have been described as an example in which the present invention is applied to a wireless terminal in a mobile communication system. 1 can also be implemented in the communication relationship.

Furthermore, the wireless transceivers according to the second to fifth embodiments of the present invention measure the intensity of received radio waves, control transmission power based on this, and determine a state in which good communication can be expected. However, in digital communication, instead of measuring the strength of the received radio wave, the error rate of the received data is measured, the reception sensitivity is controlled based on the error rate, and good communication is performed. The state that can be expected may be judged.
Also, instead of controlling transmission and reception with a single operation means, the user is prompted to perform reception control with the second operation after performing transmission control with the first operation, The case where the control of the reception side is performed by the second operation and the control on the transmitting side is prompted by the second operation is also included in the single operation according to the present invention.

DESCRIPTION OF SYMBOLS 111 Antenna 112 Sensitivity converter 114 Operation means 116 Means for detecting and processing various events 121 Band limiter 122 Sensitivity controller 123 Automatic gain control amplifier 124 Automatic gain control amplifier A
125 Automatic gain control amplifier B
126 Channel selector 128 Demodulator 129 Reception level generator 141 Level comparator 142 Reference value generator 161 Level limiter 163 Level calculator 171 Carrier generator 172 Modulator 173 Transmission power controller 313 Received level signal 315 converted Operation signal 331 Reception signal 332 Demodulation signal 335 Reception level signal 337 Signal strength information A
338 Signal strength information B
339 Signal error rate information 343 Communication establishment determination signal 352 Correction control signal 362 Transmission power control signal 374 Modulation signal 375 Transmission signal 391, Request information 392
393
394
395
396
397,
398,
399
410, receiving unit 420
430, communication establishment determination unit 440
450, control signal generator 480
460 Transmission power determination unit 470 Transmission unit 481 Operation command processing unit 482 Remote operation command detection processing unit 483 Communication partner detection comparison unit 484 Wired earphone / microphone detection unit 485 Wireless earphone / microphone detection unit 486 Current position detection area comparison unit 487 Time information Acquisition time zone comparison unit 488 Emergency alert transmission detection unit 489 Emergency alarm reception detection unit 533 Analog circuit inverting amplifier 545 CPU
546 RAM
547 ROM
551 Voltage follower amplifier 553 Analog circuit comparator 554 Analog circuit adder 555 Analog circuit subtractor 556 Logic circuit adder 557 Logic circuit subtractor 558 Logic circuit weighted comparator 559 Analog circuit level limiter 564 PIN diode 565 Zener diode 566 Power amplifier 567 Variable gain power amplifier 568 A / D converter 569 D / A converter 576 Three-state buffer 577 Flip-flop 578 Analog switch 579 Key switch 717 Level limit reference voltage 718 Reference value 719 Reference voltage 911 Transmission power And key switch to set the reception sensitivity to normal state 912 Set the transmission power and reception sensitivity to lower than normal state Key switch 961 User performs operation to reduce transmission power 962 Transmission power decreases 963 Reception sensitivity decreases 964 Judge whether good communication can be expected 965 Expectable 966 Communication possible 967 Unexpected 968 Inhibit communication (out of service area) )
971 Display 972 The shaded area represents the upper limit of the set transmission power. 973 The current transmission power is represented by the blackened portion. 974 The signal intensity at the normal reception sensitivity is represented. 975 The signal intensity at the lowered reception sensitivity is represented. Represents 976 Out of pseudo range and is highlighted 977 Represents out of range 978 Represents transmission power 981 Indicator 982 The upper limit value of the set transmission power is represented by the hatched portion 983 The current transmission power is represented by the black portion 984 The left side represents the signal strength at the normal reception sensitivity 985 The right side represents the signal strength at the lowered reception sensitivity 986 represents the out-of-pseudo range and is highlighted 987 the out-of-range 988 the transmission power 991 Power 992 Reciprocal of reception level signal 993 Correction control signal 994 Represents transmission power characteristics without correction control 995 -10d It represents the transmission power characteristic of the radio transceiver in the 997 prior art representing the transmission power characteristics in the case where the transmission 996 -20 dB correction represents the power characteristic in the case where the corrected

Claims (10)

  A radio transceiver having transmission power control means and reception sensitivity control means, wherein the transmission power control means and reception sensitivity control means are controlled by a single operation.   2. The wireless transceiver according to claim 1, wherein communication with a counterpart in wireless transmission / reception stronger than a pre-registered radio wave intensity is established by controlled reception sensitivity.   The radio transceiver according to claim 2, wherein the transmission power and the reception sensitivity can be simultaneously reduced or returned to normal by a control signal generated by the user's operation.   3. The wireless transceiver according to claim 2, wherein transmission power and reception sensitivity can be simultaneously reduced or returned to normal by a control signal generated by transmitting information from outside and performing remote operation. Wireless transceiver.   3. The wireless transceiver according to claim 2, wherein when the transmission power and the reception sensitivity are lowered and the transmission is made to the other party in the information transmission registered in advance, the reduced transmission power becomes normal. A wireless transceiver characterized by returning.   3. The wireless transceiver according to claim 2, wherein when the incoming call is received from the other party in the information transmission registered in advance in a state where the transmission power and the reception sensitivity are reduced, the reduced transmission power is returned to normal. A wireless transceiver characterized by returning.   3. The wireless transceiver according to claim 2, wherein when a specific event set in advance is detected in a state where transmission power and reception sensitivity are reduced, the reduced transmission power returns to normal. A wireless transceiver.   A transmission power control means and a reception sensitivity control means, the transmission power control means and the reception sensitivity control means have a common control signal, and the transmission power and the reception sensitivity can be simultaneously reduced by operating the control signal. A wireless transceiver that can be returned to normal, the wireless transceiver is a wireless transceiver that establishes communication with the other party in wireless transmission / reception stronger than a pre-registered radio wave intensity by the reduced reception sensitivity, and the wireless transmission / reception The wireless transmitter / receiver is characterized in that the wireless transmitter / receiver has position detecting means, and the wireless transmitter / receiver can reduce transmission power or return to normal when detecting that the wireless transmitter / receiver is a pre-registered area.   Wireless transceiver that controls reception sensitivity in conjunction with transmission output   A radio whose sensitivity is linked to the output

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