JPH0833009A - Radio call communication equipment - Google Patents

Abstract

PURPOSE:To provide radio call communication equipment with which the time required for data transmission can be shortened. CONSTITUTION:The radio call communication equipment 11 is provided with the reception processing parts 13, 16 and 19 composed of plural high frequency receiving parts equipped with reception bands respectively corresponding to carrier frequecies so as to receive the signals transmitted at the respective different carrier frequencies by dividing the transmitted data packets from the base station for the unit of the packet of a prescribed length and the plural decoders 14, 17 and 20 for decoding the signals respectively received at the high frequency receiving parts, and a control means 21 for programming the data of packet units decoded by the plural decoders 14, 17 and 20 into the state of original transmitted data packets.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio paging communication device capable of improving the data transmission rate.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram showing the configuration of a radio paging communication device, such as a pager data transmission device, for receiving data sent from a radio base station. In the figure, 1 is a VHF antenna for receiving transmitted radio waves, 2
Is a high-frequency amplifier, a filter, a frequency conversion mixer, and a high-frequency receiver for amplifying, detecting, and shaping the frequency-converted intermediate frequency signal. Reference numeral 3 is a decoder, which includes an ID collating unit, a synchronization detecting unit, a data reading unit, etc., which are not shown. The decoder 3 compares the ID code of the data sent from the output of the high-frequency receiver 2 with the sync detection of the sync code signal of the sent data, and compares it with the ID code for verification stored in advance. If they match and match, the CPU 4 described later operates to extract and process message data. The CPU 4 performs data processing on message data sent from the control of each unit and the decoder 3, stores the message data subjected to the data processing in the storage device 5, and visually displays the message data on the display unit 6. , Output to the outside as sound. Reference numeral 7 is an R storing the operation program of the CPU 4 and the error correction program of the received message data.
The OM 8 is a RAM used as a work area or the like required for the program operation of the CPU 4.

By utilizing the pager data receiving function of the pager data transmission apparatus, a system can be constructed in which a large amount of information is added to the message data from the transmission side and wirelessly transmitted to the pager data transmission apparatus. A wireless paging communication device using such a pager data transmission / reception system can receive message data with a large number of information attached to each packet and sent for each packet. Further, in a radio paging communication device using such a pager data transmission / reception system, it takes time depending on the amount of information to decode and decode the information contained in the message data.

[0004]

The conventional radio paging communication apparatus using the conventional pager data transmitting / receiving system is constructed as described above, and one set of the high frequency receiving section 2 and the decoder 3 of the pager data transmitting apparatus is provided. Since the message data that is sent is processed serially in sequence, the time until all the message data that is sent is processed, that is, the sent message data is received and is received by the decoder. There is a problem that the transmission time required for completing the processing such as the decoding of is long.

Further, if the transmission time becomes longer as described above, when an error such as data loss due to the influence of the wireless transmission system occurs in the received message data, the error of receiving the message data in which the error occurred next time or later When the error correction is performed by replacing the message data in which the error has not occurred, the waiting time until the same message data is received again increases according to the transmission time, and the time required for error correction also increases. There is also.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a radio paging communication device capable of shortening the time required for data transmission.

[0007]

A radio paging communication apparatus according to the present invention has a reception processing unit for receiving a carrier wave modulated by transmission data in a base station, detecting and demodulating the carrier wave, and decoding by a decoder. In the device, the transmission data packet from the base station is divided into packet units of a predetermined length, and in order to receive signals transmitted at different carrier frequencies, a plurality of high-frequency waves having reception bands corresponding to the carrier frequencies, respectively. A reception processing unit including a reception unit and a plurality of decoders that decode the signals respectively received by the high-frequency reception unit, and control for assembling the packet-unit data decoded by the plurality of decoders into the original transmission data packet state. It is characterized by having means.

[0008]

In the radio paging communication device according to the present invention, a plurality of high frequency receiving sections having different receiving bands receive signals of different carrier frequencies which are divided into packet units and modulated by respective data signals, Each of them is detected and demodulated, decoded and stored by a plurality of decoders, and the data transmitted in packet units is assembled into the original packet state before division. The time required for data transmission is shortened by dividing the transmission data and acquiring them in parallel in time.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the radio paging communication device of this embodiment, karaoke data will be transmitted and received as message data. FIG. 1 is a block diagram showing the configuration of a radio base station that transmits to the radio paging communication device of this embodiment.

In the figure, 31 is a karaoke data center device in which karaoke data to be distributed is stored, 32 is a telephone line network to which pager data is sent, 33 is a radio call transmitting device, and is connected to the telephone line network 32. In addition, it is also connected to the karaoke data center device 31 by a cable 34. The radio paging transmitter 33 includes a data buffer 33a, a pager encoder 33b, transmitters 33c, 33d, 33e, and a transmitting antenna 33f. The data buffer 33a is a buffer memory for temporarily storing the karaoke data sent from the karaoke data center device 31 via the cable 34. The pager encoder 33b is used in the telephone line network 32.
It is an encoder that encodes the data transmitted via the karaoke data and the karaoke data read from the data buffer 33a by a predetermined algorithm.

In the transmitter 33c, the data buffer 33a
The karaoke data or the like read from the device is transmitted and output as a predetermined packet through the transmitting antenna 33f at the first carrier frequency modulated by the signal encoded by the pager encoder 33b. At the same time, in the transmitter 33d, the pager encoder 33 such as karaoke data read from the data buffer 33a is displayed.
The signal encoded by b is transmitted and output via the transmitting antenna 33f at the second carrier frequency. The karaoke data is output from the transmission antenna 33f for each packet. At the same time, in the transmitter 33e, the karaoke data read from the data buffer 33a and coded by the pager encoder 33b is transmitted to the transmitting antenna 3 as a predetermined packet at the third carrier frequency.
Output from 3f.

The karaoke data transmitted at each carrier frequency in this case is, for example, as shown in FIG. 2, the karaoke data of packet number 1 is transmitted at the carrier frequency f1, and the karaoke data of packet number 2 is at the carrier frequency f2. The karaoke data of packet number 3 is simultaneously transmitted by changing the carrier frequency by the carrier frequency f3.

FIG. 3 is a block diagram showing the configuration of the radio paging communication device 11 on the receiving side of this embodiment. 1 in the figure
Reference numeral 2 is a VHF antenna for receiving the radio wave transmitted by the carrier frequency f1, 13 is a high frequency amplifier, and a high frequency amplifier for amplifying, detecting, and shaping the frequency-converted intermediate frequency signal and the frequency-converted intermediate frequency signal. It is a receiver. Reference numeral 14 is a decoder, which includes an ID collating unit, a synchronization detecting unit, a data reading unit, etc., which are not shown. The decoder 14 compares the ID code of the data received from the output of the high-frequency receiving unit 13 by detecting the synchronization of the sync code signal of the transmitted data and the like, and compares the ID code of the received data with the verification ID code stored in advance. If they match, CPU21
Performs extraction and processing of the message data of packet number 1 sent at carrier frequency f1.

Reference numeral 15 is a VHF antenna for receiving the electric wave sent at the transmission frequency f2, 16 is a high frequency amplifier, and a mixer for frequency conversion to an intermediate frequency and an amplifier for detecting and detecting the frequency converted intermediate frequency signal. , A high-frequency receiver that shapes the waveform. Reference numeral 17 denotes a decoder, which includes an ID collating unit, a synchronization detecting unit, a data reading unit, etc., which are not shown. The decoder 17 compares the ID code of the data received from the output of the high-frequency receiving unit 13 by detecting the synchronization of the sync code signal of the transmitted data, and compares the ID code of the received data with the verification ID code stored in advance. If they match, the CPU 21 extracts and processes the message data of the packet number 2 sent at the carrier frequency f2.

Reference numeral 18 is a VHF antenna for receiving a radio wave transmitted at a transmission frequency f3, 19 is a high frequency amplifier, and a mixer for frequency conversion to an intermediate frequency and an amplifier for detection and amplification of the frequency converted intermediate frequency signal. , A high-frequency receiver that shapes the waveform. Reference numeral 20 denotes a decoder, which includes an ID collating unit, a synchronization detecting unit, a data reading unit, etc., which are not shown. The decoder 20 compares the ID code of the received data from the output of the high frequency receiver 19 by detecting the synchronization of the sync code signal of the transmitted data, and compares the ID code of the received data with the verification ID code stored in advance. If they match, the CPU 21 extracts and processes the message data of the packet number 3 sent at the carrier frequency f3.

The CPU 21 controls the respective parts and carries the carrier frequency f.
1, f2, f3, and the like, data processing is performed on the respective message data, the message data subjected to the data processing is stored in the storage device 22 in the order of packet numbers, and the messages transmitted for each divided packet. Data is assembled to form one piece of karaoke data. Reference numeral 23 denotes an external interface, which gives an instruction to process and edit the karaoke data stored in the storage device 22 via the external interface 23 or to output to the outside from the external terminal 24 by a key input device or the like.

Reference numeral 25 is a ROM in which an operation program of the CPU 21 and an error correction program of the received message data are stored, and 26 is a RAM used as a work area required for the program operation of the CPU 21.

Next, the operation will be described. The karaoke data transmitted by the radio paging transmitter 33 is divided, the carrier frequency is changed for each packet, and the packets are simultaneously sent to the receiving side. Therefore, the radio paging communication device 11 on the receiving side receives the karaoke data for each packet of different packet numbers in parallel in time. The CPU 21 scans the outputs of the decoders 14, 17, 20, ... In order, or captures the karaoke data for each packet divided in the order in which the processing by the decoder is completed earlier, performs data processing, and stores the data in the storage device 22. , The packet numbers are assembled in order to form one piece of karaoke data.

As described above, in this embodiment, the karaoke data is sent to the receiving side at the same time by changing the carrier frequency for each of the divided packets, and the karaoke data of the packets having different packet numbers are temporally parallel to each other on the receiving side. Received
Since the CPU apparently takes in the karaoke data for each packet divided in parallel and assembles it into one karaoke data to perform the data processing, the time required for the data transmission can be shortened.

[0020]

As described above, according to the present invention, the radio paging communication device is divided into packet units by a plurality of high frequency receiving sections having different reception bands and modulated by each data signal. A plurality of decoders that have received the carrier frequency signal and have detected and demodulated the signals are respectively decoded and stored, and the data transmitted in packet units are assembled into the original packet state before division. In this way, since the transmission data is divided and received in parallel in time, there is an effect that the time required for data transmission can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a radio paging transmitter of a radio base station transmitting to a radio paging communication device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing message data sent for each packet divided to a radio paging communication device according to an embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a radio paging communication device according to an embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a pager data transmission device that receives data transmitted from a wireless base station.

[Explanation of symbols]

 13, 16 and 19 High-frequency receiving section (reception processing section) 14, 17 and 20 Decoder (reception processing section) 21 CPU (control means) 22 Storage device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location 9466-5K H04L 11/20 102 F 9466-5K 102 A

Claims (1)

[Claims] 1. A radio paging communication device having a reception processing unit for receiving a carrier wave modulated by transmission data at a base station, performing detection demodulation and decoding by a decoder,
A plurality of high-frequency receivers each having a reception band corresponding to each of the carrier frequencies for dividing a transmission data packet from the base station into packet units of a predetermined length and receiving signals transmitted at different carrier frequencies. The high-frequency receiving unit includes a reception processing unit including a plurality of decoders that decode the signals respectively received, and a control unit that assembles the packet-unit data decoded by the plurality of decoders into the original transmission data packet state. A radio paging communication device characterized by the above.