KR100228910B1 - Battery saving method for paging receiver - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a method for saving a battery of a radio receiver.

I. The technical problem that the invention is trying to solve

In the battery saving mode of the wireless paging receiver, a method of eliminating the battery consumption that is actually present is implemented.

All. Summary of Solution of the Invention

The present invention provides a wireless call receiver for receiving a digging signal transmitted at a predetermined period, by supplying the battery normally before the section of the radio call receiver data of the digging signal, and by interrupting the supply of the battery in the section after the data loading section It is characterized in that to save the battery which was actually consumed in the interval of the battery saving mode.

la. Important uses of the invention

Radio call receiver.

Description

How to save battery on pager receiver

The present invention relates to a radio call receiver, and more particularly, to a method of saving a battery of a radio call receiver registered in a radio call system for transmitting data at regular intervals.

In general, when a user inputs a radio call number and data in a telephone, the input radio call number and data are transmitted to a paging terminal through an electronic switch system (ESS). This radio call terminal encodes the received radio call number and data into a (POCSAG: Post Office Code Standardization Advisory Group) signal in a format as shown in FIG. 2, which is a radio call code, and then transmits the signal to a paging transmitter. do. Then, the radio call transmitter loads the encoded data at a predetermined frequency and transmits it to the air through an antenna connected to the transmitter, and the pager or paging receiver receives and analyzes the data loaded on the frequency accordingly.

On the other hand, it is well known in the art that one of the most interesting technical fields in the wireless call receiver is a battery saving technology. In general, a battery saving technique reduces battery consumption by processing a battery to be supplied in a section in which data corresponding to the wireless call receiver itself is provided and in a section other than the battery.

3 is a diagram illustrating an operation of data analysis according to the prior art that is performed for battery saving in a wireless call receiver. At this time, the operation of data analysis corresponds to an example in which data is loaded up to BATCH 2. In addition, it should be noted that the data to be analyzed is a POCSAG signal that is slightly different from the typical POCSAG signal. In the case of a typical POCSAG signal, data is loaded from batch 1, but in a wireless call system these days, a POCSAG signal loaded from batch 2 is used. In this case, the batch 1 of the POCSAG signal includes information indicating up to which batches subsequent data has been loaded. As described above, the present invention relates to a battery saving method in a wireless call receiver for receiving a POCSAG signal carrying data from batch 2.

2 and 3, the radio receiver first analyzes a preamble (576 bits) and then analyzes a batch 1 sync code (SC) (32 bits) and the receiver's own frame (32 bits). Here, the frame of the receiver itself corresponds to an address codeword, and the address codeword includes information indicating up to which subsequent batches of data, as described above. When data is transferred up to batch 2 and transmitted, the address codeword of batch 1 includes information indicating this. Therefore, the radio call receiver controls the battery to be supplied normally until the batch 2 in which data is loaded, and controls the battery to be supplied at a predetermined cycle as the battery saving mode in the battery saving period P1 after the magnetic frame of the batch 2. For example, in the battery saving mode, the wireless call receiver cuts off the supply of the battery (RF OFF) during the period of 512 bits and controls the battery to be supplied (RF ON) during the period of 32 bits. At this time, controlling the battery to be supplied during the 32-bit period is for detecting whether the next preamble has been received. The operation after the next preamble is detected is performed in the same manner as the above-described operation.

After the battery saving operation, the number of bits of data supplied with the battery (RF ON) for a predetermined period T (sec) is shown in Table 1 below.

Interval with data Batch 2 Batch 10 Batch 15 Batch 20 Batch 30 Number of bits that are RF ON 1600 1856 2016 2176 2496

In Table 1, the number of bits of data supplied to the battery during the period T (sec) is determined by a calculation method such as 576 + 64 x B + 32 x (N-B). Here, 576 denotes the number of bits of the preamble, 64 denotes the synchronization code of batch 1 and the address code in the own frame, B denotes the number of batches containing data, and N denotes the total number of batches in the period T. Namely, the 32 × (N-B) indicates the number of bits that are turned on in the battery saving operation.

As described above, the battery saving operation according to the related art saves the battery by supplying / blocking the battery at regular intervals from the interval after the interval in which the data is loaded, but from the interval after the interval in which the data is loaded. Therefore, although the battery is saved in the section after the data is loaded, it can not be said that perfect battery saving is achieved because the battery is actually supplied at regular intervals. As such, when battery saving is not achieved, there is a problem in that battery consumption increases and consequently, the battery life is shortened.

Accordingly, an object of the present invention is to provide a method for further saving a battery in a wireless page receiver.

Another object of the present invention is to provide a method for increasing the service life of a battery in a radio receiver.

In order to achieve the above object, the present invention provides a wireless call receiver that receives a breading signal transmitted at predetermined intervals. By cutting off the supply of the battery it is characterized in that to save the battery which was actually consumed in the interval of the battery saving mode.

1 is a view showing the configuration of a general radio receiver.

FIG. 2 is a diagram showing a format of a POCSAG signal received by the antenna shown in FIG.

3 shows a processing operation of data analysis for the operation of battery saving according to the prior art;

4 is a diagram showing a processing operation of data analysis for battery saving operation according to the present invention;

5 shows a flow of data analysis for the operation of battery saving in accordance with the present invention.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or chip designer, and the definitions should be made based on the contents throughout the present specification.

First of all, the battery saving operation according to the present invention is a technique applied to a radio call receiver for receiving a POCSAG signal carrying data from the batch 2 as described above. Such a system, that is, a radio calling system that transmits a POCSAG signal containing data from batch 2 has a characteristic of transmitting data at a predetermined period T (sec). That is, the radio call system transmits data in the order of preamble, batch 1, batch 2, batch 3, ..., batch N within a predetermined period T (sec). Therefore, the radio call receiver can predict when the preamble is received. The present invention is characterized in that a battery saving operation is performed by using a characteristic of predicting a time point at which a preamble is received at a radio call receiver.

4 is a diagram illustrating an operation of data analysis for battery saving according to the present invention. Referring to FIG. 4, a radio call receiver for receiving a preamble (PREAMBLE) included in a preset period T (sec) and a fire signal configured with a plurality of batches BATCH 1 to BATCH N includes a P11 during the set period T. In the section, the battery is normally supplied (RF ON), and in the P12 section, the battery is turned off (RF OFF). In this case, the operation corresponds to the case where data of the radio call receiver is loaded up to the batch 2. That is, the radio call receiver detects the preamble from the digging signal when the digging signal is received. When the preamble is detected from the bursting signal, the radio receiver receives the synchronization according to the synchronization code included in the following batch 1 and analyzes the address code to determine up to which section the data is mounted. This operation is possible because, as already mentioned, the batch 1 includes information indicating the mounting section of the data. Therefore, the radio call receiver can know up to which batch the data (message) received by the user through the address code included in the first batch. The radio receiver receives and analyzes the received messages included in the determined batches (batch 2 according to the example) of the batches after the first batch according to the sync codes included in each batch. Process. The battery is normally supplied from the preamble detection operation to the reception message processing operation. However, the battery supply is cut off after the corresponding frame of the batch 2 in which the received message is not mounted. This interruption of battery supply is continued until the next preamble is detected. In FIG. 4, the P12 section represents a section in which battery supply is cut off.

The reception data analysis operation for battery saving is performed in a general radio call receiver having a configuration as shown in FIG. 1, and the radio call receiver receives an explosion signal having a structure as shown in FIG. 2.

Referring to FIG. 1, the RF unit 111 receives radio call information through an antenna AT and performs functions of frequency conversion, demodulation, and waveform shaping. The output of the RF unit 111 is wireless call information converted into digital data and is applied to the decoder unit 112. The decoder 112 decodes the received data and sets an operation mode of the radio call receiver. That is, in the idle mode, the supply of operating power is controlled at regular intervals to detect the preamble data. In the batch mode, the synchronization code data (SC) and the set frame data (address codeword, Message codeword). The detected frame data is decoded and converted into the original data form. The power supply unit 114 is implemented by a battery and supplies the power required to receive and process the operation of the radio call receiver, in particular, the explosion signal. The switch 113 is switched and controlled by the decoder unit 112 so that power supplied from the power source unit 114 is supplied to the RF unit 111.

The micro controller 115 receives the decoded data output from the decoder 112 to generate an alarm control signal or a display control signal, and controls the overall operation of the wireless call receiver. The alarm unit 118 generates an alarm signal such as a tone signal or a vibration signal for notifying that the alarm signal is called by the alarm control signal output from the microcontroller 115. The display unit 117 displays the message of the calling party and the status information of the radio call receiver by the display control signal output from the microcontroller 115. The typical caller's message is the phone number of the caller. The memory 116 stores the unique address information and the frame information assigned to the radio call receiver, and stores the caller's message processed by the microcontroller 115. The operation unit 119 allows the user to select a call information confirmation key that allows a caller message stored in the memory 116 to be displayed on the display unit 117, and an alarm indicating that there is call information by a tone signal or a vibration signal. And a plurality of keys such as a key stored in the memory 116 and a key for allowing a user to select one of a plurality of caller messages displayed on the display unit 117.

Referring to FIG. 2, the breadth signal received by the radio receiver is structured into a plurality of batches contiguous with a preamble consisting of 576 bits. The preamble is a reversal code in which "1" and "0" are repeated for 576 bits. One digging signal usually consists of 30 batches. One batch consists of one synchronization code of 32 bits and eight frames FR1 to FR8 of 64 bits. Here, the synchronization code data is 32-bit data of "(7CD215D8) h, (0111 11001101) b". The data of each frame consists of 32-bit address codewords and 64-bit data of 32-bit message codewords. Therefore, one batch is composed of 17 words of 544 bit data (17 words * 32 bits = 544 bits) in which 32 bits of data are one word. Here, the address codeword of the batch 1 of the digging signal applied to the present invention is data mounting information indicating which frame of the batch is loaded with data.

Referring back to FIG. 4, the decoder 112 of the wireless call receiver according to the present invention controls the switch 113 in the section P11 so that the battery is normally supplied to the RF unit 111, and the switch 113 is controlled in the section P12 to supply the battery. Shut down further reduces the consumption of the battery. In this case, the battery is normally supplied with a preamble (576 bits), batch 1 sync code (32 bits) and address code (32 bits), batch 2 sync code (32 bits) and address code (32 bits), In the section of the message code (32 bits), it means that the decoder 112 controls the switch 113 to supply power from the power supply unit 114 to drive the RF unit 111. In this case, the battery is supplied only up to the batch 2 because the case where the data up to the batch 2 has been described as an example. The battery supply cutoff operation ends when the preamble in the next period is detected by the decoder section 112. This is possible because the decoder section 112 receives the explosion signal every predetermined period T. In other words, it is detected by the decoder 112 that the preamble is received every predetermined period T. This detection operation is possible by the decoder 112 counting the period T.

5 is a diagram illustrating a processing flow of data analysis for battery saving operation according to the present invention.

Now, if an exploding signal having a structure as shown in FIG. 4 is received through the antenna AT, the digging signal is received by the decoder unit 112 via the RF unit 111 (step 501). In operation 502, the decoder 112 determines whether the preamble is detected in response to the receiving of the digging signal, resets the time count, and starts a new count operation. After performing step 503, the decoder 112 detects the sync code of batch 1 following the preamble in step 504, synchronizes according to the detected sync code in step 505, and then analyzes the data of the own frame. Check that the data is loaded until the batch. If the analyzed frame data is a frame address indicating up to which batch the data is loaded, in step 506, the decoder 112 detects the sync code of batch 2 in step 507 and then applies the detected sync code to the detected sync code in step 508. After synchronization, the data of magnetic frame is analyzed. When the data of the analyzed frame is identified as the self address in step 509, in step 510, the decoder 112 analyzes the received message and outputs the analyzed message to the microcontroller 115. The microcontroller 115 then processes the output message to generate an alarm control signal and a display control signal. The alarm control signal is applied to the alarm unit 118 to inform that it is called as a tone signal or a vibration signal, and the display control signal is applied to the display unit 117 to display a message of the calling party.

After performing the processing operation of the received message, the decoder 112 determines in step 511 whether the preset period value T is counted by the count operation. In this case, the decoder 112 controls the switch 113 to cut off the power supplied to the RF unit 111 until it is determined in step 511 that the set period value T is counted. The interruption operation of the power supply corresponds to the period P12 of FIG. 4, and corresponds to the time point when the processing operation of the received message is terminated until the next preamble is detected (the time point at which the cycle value T is counted). If it is determined in step 511 that the set period value T is counted, the decoder 112 checks whether power is supplied to the RF unit 111 in step 513. Power is supplied to the RF unit 111.

Summarizing the above-described data analyzing operation, the decoder 112 receives the data and time counts while analyzing the sync code of each batch. When the data reception process is finished, the battery supply operation is interrupted. The battery supply interruption operation is terminated at the time point when the cycle value T is counted, and the battery is supplied again. The blocking operation of the battery supply is performed in a section in which data is not received. After the data analysis operation, the number of bits of data supplied by the battery during the setting period T is shown in Table 2 below.

Interval with data Batch 2 Batch 10 Batch 15 Batch 20 Batch 30 Number of bits that are RF ON 704 1216 1536 1856 2496

In Table 2, the number of bits of data supplied to the battery during the period T (sec) is determined by a calculation method such as 576 + 64 × B. Here, 576 represents the number of bits of the preamble, 64 represents the sync code of batch 1 and the address code in the own frame, and B represents the number of batches on which data is loaded. The number of bits of data supplied by the battery by the operation according to the present invention corresponds to the number of bits of data supplied by the battery by the operation according to the prior art minus the number of bits of data supplied by the battery during the battery saving operation. . Referring to <Table 2> and <Table 1> described in the prior art, it can be seen that the data analysis operation according to the present invention significantly reduces battery consumption as shown in Table 3 below.

Interval with data 2 batch 10 batch 15 batches 20 batches 30 batch Prior art scheme 1600 1856 2016 2176 2496 Manner of the invention 704 1216 1536 1856 2496 Battery savings 56.0% 34.5% 23.8% 14.7% 0 %

Referring to Table 3, according to the battery saving operation of the present invention, the reduction rate of battery consumption is 23.8% on average compared to the conventional technology. This means that if the usage period of the radio call receiver applying the operation of data analysis according to the prior art is 30 days, the usage period of the radio call receiver applying the operation of the data analysis according to the present invention is 37 days, which extends the battery usage for about 7 days. It is effective to let.

As described above, the present invention has the advantage of reducing the consumption of the battery by avoiding the actual consumption of the battery even in the battery saving mode. As a result, the present invention has the advantage of extending the service life of the battery.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (3)

In the battery saving method of a radio call receiver for receiving a breading signal transmitted every predetermined period, The battery saving method, characterized in that the battery is supplied normally before the section of the radio call receiver, the data of the digging signal, and the supply of the battery is cut off in the section after the data loading section. In the battery saving method of a wireless paging receiver for receiving a breading signal that is transmitted every predetermined period and including information indicating the mounting section of the data, A counting step of counting a preset value in response to receiving the digging signal; A data mounting determination process of analyzing the data mounting information to determine up to which section the data is mounted; A data analysis process of analyzing data in the received breading signal while supplying the battery to the mounting section of the determined data normally; From the interval after the determined data mounting section until the set value is counted is made of a battery supply blocking process to cut off the supply of the battery, And repeating the counting process and the battery supply blocking process. In the battery saving method of a radio call receiver for receiving a preamble and a burst signal consisting of a plurality of batches each of which is composed of a synchronization code, an address codeword and a message codeword, A preamble detection step of detecting a preamble from the digging signal; In response to the detection of the preamble, a data mounting section determination process of determining a section in which data is mounted by analyzing an address code after synchronizing according to a synchronization code included in a first batch subsequent to the detected preamble; , A received message processing step of analyzing and processing a received message included in batches up to the determined section among the batches after the first batch according to a sync code included in each batch; During the preamble detection process and the reception message processing process, a battery supply control process for supplying a battery normally and interrupting the supply of the battery until the next preamble is detected from the section in which the reception message is not mounted How to save battery.

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