JPH04334215A - Moving radio equipment - Google Patents

Abstract

PURPOSE:To reduce power consumption at the time of waiting and receiving by prolonging the receiving time period of intermittent reception generated by a timing controller in correspondence with the presence or absence of an error and interrupting the power source of whole equipment. CONSTITUTION:This equipment is provided with a reception part 2 which receives and regenerates a signal, a transmission part 9 which modulates and transmits an analog voice signal, an error controller 15 which receives a part of digital output demodulated at the reception part 2 and detects its error, and the timing controller 13 which prolongs the timing interval of the whole equipment based on a signal from the error controller 15 on which temporality interrupts the power source of the whole equipment. When an incorrigible error continues for more than the fixed time, the error controller 15 judges it to be out of a service area, and the interval of intermittent reception is prolonged or the power source of the whole equipment is interrupted. An operation is resumed when the power source is turned on again.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to mobile radio equipment used in mobile telephones and the like.

0002

2. Description of the Related Art FIG. 3 is a block diagram showing the configuration of a conventional mobile radio device. In FIG. 3, 1 is an antenna that receives radio waves. A receiver 2 is connected to the antenna 1 and converts the received signal into a desired frequency and amplitude. A demodulator 3 is connected to the receiver 2 and demodulates the signal from the receiver 2 into a digital signal. 4 is demodulator 3
A decoder 5 is connected to the decoder 4 and reproduces the signal from the demodulator 3 as audio, and a speaker 5 is connected to the decoder 4 and outputs the audio signal as a sound wave. 6 is a microphone that converts the sound wave to be transmitted into an electrical signal; 7 is connected to this microphone 6; and an encoder that encodes the electrical signal from the microphone 6 into a compressed digital signal; 8 is connected to this encoder 7; A modulator 9 is connected to this modulator 8 to put the compressed digital signal on a carrier wave, and a transmitter 10 is connected to this transmitter 9 and its output signal is converted to a desired frequency and power. This is a transmitting antenna that transmits radio waves as radio waves. An error controller 11 is connected to the demodulator 3, receives a part of the digital output, performs error correction, and outputs an error correction signal; 12 is connected to the error controller 11, and receives the error correction signal from the error controller; A sequence controller 13 provides line connection to the base station, etc.
A timing controller 14 is connected to the sequence controller 12 and the demodulator 3 as well as to other elements in the device, and takes the timing of the entire device based on the outputs of the sequence controller 12 and the demodulator 3. are connected to a receiver 2 and a transmitter 9, and as described above, these receivers 2 and transmitters 9 convert their respective input signals to the desired frequency and
A synthesizer that provides control signals to convert into amplitude and power.

Next, the operation of the above conventional example will be explained. Here, for convenience, a description will be given of the time of a call. A signal received by receiving antenna 1 is converted into a desired frequency and amplitude by receiver 2 according to a control signal from synthesizer 14. This signal is demodulated into the original digital signal by a demodulator 3, guided to a decoder 4, reproduced as an audio signal, and sent out from a speaker 5 as a sound wave. On the other hand, the voice to be transmitted is converted into an electrical signal by the microphone 6, encoded into a compressed digital signal by the encoder 7, put on a carrier wave by the modulator 8, and converted to a desired frequency by the transmitter 9 according to the control signal of the synthesizer 14. is converted into electric power and sent to the transmitting antenna 10.
It is sent out as radio waves via . Further, a part of the digital output of the demodulator 3 is error-corrected by an error controller 11,
It is guided by the sequence controller 12 and performs line connection with the base station. Moreover, this sequence controller 12 and demodulator 3
Based on the output of the timing controller 13 forms the timing of the entire device. In the standby state before a call starts, the timing signal from the timing controller 13 intermittently repeatedly powers on the receiver 2, demodulator 3, synthesizer 14, sequence controller 12, and error controller 11.
Turn off and perform intermittent reception to reduce power consumption during standby.

0004

[Problems to be Solved by the Invention] However, in the conventional mobile radio equipment described above, although the power supply capacity is limited, when the power is turned on, for example, it is kept in a desk drawer or There is a problem in that power is wasted because intermittent reception occurs even outside the service area, such as when the device is simply carried in a location where the intensity is very low.

The present invention solves these conventional problems by detecting bit errors in control signals when a mobile phone is out of the service area during intermittent reception, and extending the period of intermittent reception. An object of the present invention is to provide a mobile radio device that can save power by cutting off power for a long time.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a receiving section that demodulates an original encoded digital signal from a received signal and reproduces audio from the demodulated signal, and a receiving section that demodulates an original encoded digital signal from a received signal and reproduces audio from the demodulated signal, and a receiving section that converts an analog audio signal into a compressed digital signal. The transmitting section converts the compressed digital signal into a signal, puts this compressed digital signal on a carrier wave, converts it to the desired frequency and amplitude, and transmits it, and the receiving section receives a part of the demodulated digital output and receives the error signal. an error controller that detects the error, a sequence controller that is connected to the error controller and performs line connection with the base station based on the error detection signal, and an output of the sequence controller and a demodulated output of the receiver. and a timing controller that generates a timing signal for the entire device based on the timing signal, and detects the presence or absence of an error that cannot be corrected by the error controller during intermittent reception in standby, and depending on the presence or absence, the timing controller The power consumption during standby reception is reduced by lengthening the reception time period of intermittent reception generated by the system or by cutting off the power to the entire device.

[0007]

[Operation] Therefore, according to the present invention, the error controller is provided with an error control function, and when errors continue, the reception interval period of intermittent reception is lengthened and the power of the entire device is cut off. Power consumption due to intermittent reception can be reduced when the user is outside the service area, such as when going to a restaurant or entering a building.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the configuration of an embodiment of a mobile radio device according to the present invention. In the figure, 1 to 10
, 12 to 14 are the same as in the conventional example, and their explanation will be omitted. Reference numeral 15 corresponds to the conventional error controller 11, but in addition to the above-mentioned functions, the error controller 15 has a function of detecting when an error that cannot be corrected continues to occur for a certain period of time. Note that this embodiment uses a commonly used error detection code (CRC: Cyclic Redundancy Code).
dancy check code) is used to detect that error correction is impossible.

Next, the operation of the above embodiment will be explained. The time of talking is the same as the conventional example, so the explanation will be omitted, and the time of standby will be explained. The error controller 15 corrects the error, but if there is data that cannot be error corrected, a first signal is sent to the timing controller 13 to notify that the error cannot be corrected, and the timing is determined to determine the operation timing of the entire device. Increase the signal generation interval, that is, the intermittent reception interval. As shown in FIG. 2, when the normal intermittent reception interval t0 and error correction cannot be performed, the timing controller 1
3, the intermittent reception interval is changed from the above t0 to a longer t1.
Change to Thereafter, if error correction is not possible, t2, t
3. Increase the intermittent reception interval to t4. Here, t
0<t1<t2<t3<t4. If error correction is possible, a second signal notifying that error correction is possible is sent to the timing controller 13, and t4→t3→t
The intermittent reception interval is shortened as follows: 2→t1→t0. Here, if the intermittent reception interval is t4 and error correction is not possible, or if the intermittent reception interval is t0 and error correction is possible, the intermittent reception intervals are maintained at t4 and t0, respectively. Note that if error correction is possible, the intermittent reception interval may be gradually shortened without transmitting the second signal in this way.

Further, in this embodiment, when error correction is impossible, the intermittent reception interval is immediately lengthened, but the error controller 1
The timing controller 1 outputs the first signal sent from the timing controller 1.
Either the intermittent reception interval is lengthened when the signal is received a predetermined number of times (3), or the first signal is sent out only when the error controller 15 is in a state in which error correction is not possible. Alternatively, the timing controller 13 may be used to lengthen the intermittent reception interval.

Therefore, according to this embodiment, if an error that cannot be corrected continues for more than a certain period of time, the error controller 15 considers that the service area is outside the service area, and increases the interval between intermittent receptions so that normal reception is not performed. Power consumption can be further reduced compared to when receiving intermittent reception.

[0012] In the error controller 15, when an error that cannot be corrected continues for a certain period of time or more, the power to the entire device may be cut off and the operation may be restarted when the power is turned on again. In this case, power consumption can be further reduced.

[0013]

As is clear from the above embodiments, the present invention detects that an error that cannot be corrected by the error controller continues to occur for a certain period of time, and based on this, the timing controller By lengthening the reception interval or by shutting off the power to the entire device, the reception cycle of intermittent reception is lengthened when the device goes out of the service area during standby.
Alternatively, since the power supply is cut off, there is an effect that power consumption can be reduced.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a mobile radio device according to the present invention.

[Fig. 2] Explanatory diagram showing the transition of the intermittent reception interval in this embodiment

[Fig. 3] Block diagram showing the configuration of a conventional mobile radio device

[Explanation of symbols]

3 Demodulator 12 Sequence controller 13 Timing controller 15 Error controller

Claims (3)

[Claims] 1. A receiving section that demodulates an original encoded digital signal from a received signal and reproduces audio from the demodulated signal, converts an analog audio signal into a compressed digital signal, places the compressed digital signal on a carrier wave, and reproduces a desired signal. a transmitting section that converts the frequency and amplitude into the frequency and amplitude of the transmitter, and is connected to the receiving section,
An error controller that receives a portion of the demodulated digital output and detects errors therefrom, and a sequence controller that is connected to this error controller and connects a line to a base station based on the error detection signal. , and a timing controller that generates a timing signal for the entire device based on the output of the sequence controller and the demodulated output of the receiver, and prevents errors that cannot be corrected by the error controller during intermittent reception in standby mode. A mobile radio device characterized in that the presence or absence is detected and the reception time period of intermittent reception generated by the timing controller is changed depending on the presence or absence. 2. A receiving section that demodulates the original encoded digital signal from the received signal and reproduces audio from the demodulated signal, converts the analog audio signal into a compressed digital signal, places the compressed digital signal on a carrier wave, and reproduces the desired signal. a transmitting section that converts the frequency and amplitude into the frequency and amplitude of the transmitter, and is connected to the receiving section,
An error controller that receives a portion of the demodulated digital output and detects errors therefrom, and a sequence controller that is connected to this error controller and connects a line to a base station based on the error detection signal. , and a timing controller that generates a timing signal for the entire device based on the output of the sequence controller and the demodulated output of the receiver, and is configured to prevent errors that cannot be corrected by the error controller during intermittent reception in standby mode. A mobile radio device characterized in that a reception time period of intermittent reception generated by the timing controller is lengthened when a predetermined period of time is detected. 3. A receiving unit that demodulates the original encoded digital signal from the received signal and reproduces audio from the demodulated signal; and a receiving unit that converts the analog audio signal into a compressed digital signal, places the compressed digital signal on a carrier wave, and reproduces the desired signal. a transmitting section that converts the frequency and amplitude into the frequency and amplitude of the transmitter, and is connected to the receiving section,
An error controller that receives a portion of the demodulated digital output and detects errors therefrom, and a sequence controller that is connected to this error controller and connects a line to a base station based on the error detection signal. , and a timing controller that generates a timing signal for the entire device based on the output of the sequence controller and the demodulated output of the receiver, and is configured to prevent errors that cannot be corrected by the error controller during intermittent reception in standby mode. A mobile radio device characterized in that when a predetermined period of time is detected, the timing controller shuts off power to the entire device.