JPH04115632A - Pager terminal - Google Patents

Abstract

PURPOSE:To save ineffective power by comparing successively the ID bit of a frame head with the ID bit of each terminal, and turning off a receiver immediately when one bit or the prescribed number of the bits do not coincide. CONSTITUTION:An ID bit comparing part 20 inputs successively the ID bit inputted first, and simultaneously, it inputs the bit showing an ID number stored in an ID storage part 17, and compares successively the respective corresponding bits with each other. Then, in the case that the comparison of every one bit results in non-coincidence, it outputs the detection pulse of the non-coincidence. A non-coincidence bit counter 21 counts the detection pulse from the ID bit comparing part 20, and a timer reset part 22 outputs a reset pulse when an inputted count value reaches a prescribed number. The reset pulse is inputted to its own frame timer part 14, and it off-controls immediately the receiver 12. Thus, low power consumption can be realized.

Description

[Detailed Description of the Invention] [Summary] This invention relates to a paging system, particularly a pager terminal having an intermittent reception function, which reduces power consumption by immediately turning off the receiver when it recognizes that the terminal is not fully operational. For the purpose of providing a pager terminal, the bits of an identifier in a frame into which data for the terminal is inserted are sequentially input, and compared with the bits indicating an identifier unique to the terminal assigned in advance, one bit or The device is configured to have an identifier comparison control unit that detects a mismatch between multiple bits and outputs a control signal, and an off control unit that immediately controls the receiver of its own terminal to turn off by inputting a control signal from the identifier comparison control unit. It is something.

[Industrial application field]

The present invention relates to a paging system, and particularly to a pager terminal having an intermittent reception function.

Each receiving terminal (= pager terminal, hereinafter simply referred to as a terminal) in the paging system inserts its own data into a predetermined frame of the data transmitted from the base station, and It is configured. Therefore, each terminal has an intermittent reception function that turns on the receiver for a predetermined period of time only when a frame into which the data of the terminal itself is inserted is transmitted.

However, data addressed to one terminal is not inserted into the frame, but is allocated to multiple terminals. Therefore, the receiver is controlled to be turned on for a predetermined time even when the own terminal is not completed, that is, when the destination is another terminal.
It was wasting power. Therefore, there is currently a need for a technology to reduce such wasteful power.

[Conventional technology]

FIG. 4 shows the configuration of a conventional pager terminal. Fifth
The figure shows an intermittent reception operation in a conventional pager terminal, in which (A) shows received data and (B) shows the operation of a receiver. In the figure, 11 is an antenna, 12 is a receiver, 13 is a frame synchronization unit, 14 is an own frame timer unit, 15 is an error correction unit, 16 is a data processing unit, 17 is an identifier storage unit (the identifier is hereinafter referred to as ID), 18 is a ring tone and data generating section.

In conventional pager terminals, synchronization code a is transmitted so that the terminal can receive data in synchronization with the base station, and a frame (frame b for own terminal) in which the terminal's own data is inserted is transmitted. The own frame timer unit 14 controls the receiver 12 so that the receiver is turned on only at certain times. The frame synchronization unit 13 operates the terminal in synchronization using the synchronization code a, and outputs a synchronization code end signal to the own frame timer unit 14. The own frame timer section measures the arrival time of the complete frame of the own terminal in response to the synchronization code end signal, and sends out a reception control signal to perform on/off control of the receiver. This is to keep the power consumption of the pager terminal low.

When the receiver 12 is turned on during the frame transmission time of its own terminal as described above, data is received and inputted to the error correction section 15, and after error correction is inputted to the data processing section 16. The data processing unit 16 first reads the ID bit C included in the header to recognize the ID number, compares it with the ID number stored in advance in the ID storage unit 17, and when it recognizes that the own terminal is complete. Only when the general data d is processed and a ring tone is generated, data or the like is displayed or sound is generated.

[Problems to be Solved by the Invention] In paging systems, since the number of terminals is large compared to the number of frames, a plurality of terminals have been assigned to one frame. Therefore, even if the receiver is turned on at the time of the frame when the own terminal is completed, there are cases where the own terminal is not completed.

However, conventional pager terminals only receive all the data in the frame even if the data is not addressed to them, and control the ring tone and data generation section 18 not to operate if the pager terminal is not completely addressed.

In other words, a problem arises in that even if the terminal itself is not completed, power is wasted in order to turn on the receiver for a predetermined period of time.

Therefore, an object of the present invention is to provide a pager terminal with even lower power consumption by immediately turning off the receiver when it is recognized that the terminal is not fully operational.

[Means to solve the problem]

A diagram of the principle of the present invention is shown in FIG. 1 in the figure is the antenna,
2 is a receiver, 3 is an ID comparison control section, 4 is a data processing control section, 5 is an ID storage section, 6 is an off control section, and 7 is an own frame timer section.

In order to achieve the above object, the present invention sequentially inputs into a pager terminal the bits of an identifier in a frame into which data for the own terminal is inserted, and sequentially compares them with bits indicating an identifier unique to the own terminal assigned in advance. an identifier comparison control section 3 that detects a mismatch of one or more bits and outputs a control signal; and an off control section that immediately controls the receiver of its own terminal to turn off by inputting a control signal from the identifier comparison control section 3. 6.

Further, in the principle diagram, an off control section 6 is connected to the own frame timer section 7, and by controlling this, the receiver is turned off. However, it goes without saying that there is no problem even if the off control unit 6 directly controls the receiver to turn off.
This application includes image composition.

[Effect]

With the above means, in the present invention, the bits of the frame for the own terminal are sequentially received, and the ID comparison control unit 3 compares the ID bit included at the beginning of the frame and the bit indicating the ID assigned to each terminal in advance. After sequential comparison, if 1 bit or a predetermined number of bits do not match, the off control section 6 immediately turns off the receiver 2 directly or by issuing a control signal to its own frame timer section 7. It is intended to be turned off.

〔Example 〕

An embodiment of the present invention is shown in FIG. In the figure, the same members as in FIG. 4 are given the same reference numerals. 20 is an ID focus comparison section, 21 is a mismatch bit counter, these two correspond to the ID comparison control section 3 in FIG. 1, and the error correction section 1
5. Data processing unit 16 and calling and data display unit 18
corresponds to the data processing control section in FIG. Reference numeral 22 denotes a timer reset section, which corresponds to the off control section 6 in FIG. In this embodiment, the off control section 6 resets the own frame timer section 14. Further, in FIG. 1, the frame synchronization section is omitted. FIG. 3 is a diagram showing the intermittent reception operation in the embodiment, where (A) shows received data and CB) shows the on/off operation of the receiver. The present invention will be described in detail below with reference to the drawings.

A receiver 12 receives data input from a base station via an antenna 11 . The data received by the receiver is input to the error correction section 15 and also to the ID bit comparison section. The input data consists of a plurality of frames consisting of a synchronization bit, an ID bit C, and general data d, as shown in FIG. 3(A).

The ID bit comparator 20 sequentially inputs the first ID bits, and also inputs the bits indicating the ID number stored in the ID storage 17, and sequentially compares the corresponding bits. If the result of the bit-by-bit comparison is a mismatch, a mismatch detection pulse is output. In the mismatch bit counter 21, the ID bit comparison section 20
Counts the detected pulses from and outputs the count value.

The timer reset section 22 inputs the count value and outputs a reset pulse when the count value reaches a predetermined number. Although the predetermined number is used here, it is possible to turn off the receiver 2 more quickly by outputting a reset pulse at a count value of 1, but due to reliability issues (taking into account bit errors, etc.) the count value is 2, It may be better to output a reset pulse in 3.... Therefore, this number is determined by the reliability of the system.

The reset pulse is input to the own frame timer section 14, and the own frame timer section 14 immediately controls the receiver 2 to turn off in response to the input.

With the above-described operation, if the own terminal is not finished, it becomes possible to turn off the receiver while the ID bit is being input, as shown in FIG. 3(B). On the other hand, if the own terminal is complete, the data processing unit 1 passes through the error correction unit 15 in the same manner as before.
6, the ringing tone and further data will be displayed. However, unlike the conventional method, since the ID bit comparison is performed in the first stage, the data processing section 16 does not need to compare the ID numbers.

Although the present invention has been described above according to one embodiment of FIG. 2, the present invention is not limited to this. For example, the signal from the timer reset section 22 is input into the receiver from the signal from the own frame timer section 14. If a function is provided to give priority to the receiver, it is also possible to directly input the reset pulse from the timer reset section 22 to the receiver.

〔effect 〕

As described above, according to the present invention, even if the frame is for the own terminal, by comparing the transmitted ID focus with the bit indicating the assigned ID number, if a mismatch is detected, the receiver can be turned off in a short time. This results in lower power consumption compared to conventional methods. Therefore, achieving low power consumption makes it possible to reduce the size of the battery and also the size of the terminal itself.

Furthermore, since the ID bits are compared bit by bit rather than the ID numbers themselves, there is no need to read all the ID bits, and it is faster than comparing ID numbers (the receiver can be turned off).

FIG. 5 is a diagram showing the intermittent reception operation shown in FIG.

antenna Receiving machine ID comparison control section Data processing control unit ID storage section Off control section Own frame timer section

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing an embodiment of the present invention, FIG. 3 is a diagram showing the intermittent reception operation shown in FIG. 2, and FIG. 4 is a diagram showing the conventional configuration. Figure 1

Claims (1)

[Claims] (1) A pager terminal that is a receiving terminal of a paging system and has an intermittent reception function that turns on the receiver (2) for a predetermined period of time each time a frame into which data for the own terminal is inserted is sent from the base station. In this step, the bits of the identifier in the frame into which data for the terminal is inserted are sequentially input, and the bits are sequentially compared with the bits indicating the identifier unique to the terminal assigned in advance to detect a mismatch of one or more bits. An identifier comparison control section (3) that outputs a control signal; and by inputting a control signal from the identifier comparison control section (3),
Off control unit (6) that immediately turns off the receiver of its own terminal
A pager terminal comprising: