Method and device self-diagnostics for fault detection of the transceiver to the receiving module of the radio base transceiver station

 

(57) Abstract:

The method and apparatus relate to the radio and can be used for fault detection circuit transceiver module base transceiver system (BPS) radio. Technical result achieved-diagnosis for fault detection by measuring the value of the control voltage of the automatic gain control (AGC) and the values of the detection of the intermediate frequency (if) issued step-down Converter with subsequent comparison with the corresponding reference values. In the transceiver, the microprocessor reads the predetermined first minimum value and the first maximum value of levels of the received input signal, measures the instantaneous value of the control voltage and converts it to the level of the received input signal, which is determined by the fault. The device comprises a step-down Converter, the management cost of the transceiver with an external start with the microprocessor, analog-to-digital Converter and the memory device. 2 C. and 17 C.p. f-crystals, 7 Il.

This application refers to, includes in its membership, and p is the diagnostics of malfunctions of the transceiver in the base station" ("Method and Apparatus for Fault Diagnostic of a Transceiver in a Base Station"), previously filed in the Korean industrial property office on 15 June 1998 , which was officially assigned a registration number 1998-222921.

The scope of the invention

The present invention relates to a system for diagnosis of fault of the transceiver to the receiving module of the radio base transceiver station. Particular the present invention relates to a method and device for self diagnosis and fault detection circuitry transceiver module base transceiver system (BPS) radio and apparatus for the same purpose.

Description of the prior art

In the mobile communication system, namely, in the conventional system, multiple access, code division (mdcr), the system is provided by a set of mobile stations, a set of base transceiver systems (BPS) to provide communication services to mobile stations, a base station controller (ASC) for BPS connection to the switching center mobile communications (CCMS) and CCMS for KBS connection to the telephone network of General use (PSTN).

Fig.1 is a block diagram that illustrates PU 1 for reception of a signal of high frequency (HF) from the mobile stations and the internal system 2 for processing the received signal.

Internal system 2 includes an RF module (VCM) 3 for converting the received RF signal into a signal of intermediate frequency (if) digital module (CM) 4 for demodulation of the signal transmitted VCM, into a digital signal and the scan module of the base station (BCH) 5 attached to VCM to check BPS.

VCM 3 includes a primary processing module (IGOS) 3A attached to the receiving antenna, transceiver module (MRP) 3b for down-converting the received signal into the if signal and to output the if signal at the correct level and the amplifier divider 3V to transfer the converted if signal to the digital module (CM) 4.

Digital module (CM) 4 includes a digital signal module 4A for demodulation of the signal received from amplifier divider 3 FC. BCH 5 includes the RF switch 5A attached to the pre-processing module (IGOS), a variable attenuator 5B to adjust the attenuation value signal, which is transmitted to the RF switch 5A and the test module 5B, attached to a variable attenuator 5B for the issuance of the test signal.

In the above-mentioned base transceiver system of a mobile communication system module is eat the fault.

Fig. 2 is a block diagram of an algorithm illustrating the previously known method of fault monitoring of a receive path BPS. According to a previously known method for the diagnosis of equipment fault diagnosis finds out whether passes through BPS at the moment the call (step 101). If you currently have a call, troubleshoot ends because diagnosing the fault may be with the passage of the call (step 102). If at the moment there is no call, the output level of the test module 5V properly regulated and fed to the transceiver module 3b through the primary processing module 3A (step 103). Equipment fault diagnosis of remembers the level of the output signal issued by the verification module 5B (step 104).

Device for diagnosing a fault reads the received input signal, measured transceiver module 3b (step 105), and then compares the received input signal with the stored level of the output signal of the test module 5B (step 106), to determine whether the difference of these two signals specified meant the tract. Then the hardware diagnostics reads the level of the if signal output from the transceiver module 3b (step 108), and compares the read level of the inverter with the level of FC, which was previously saved in the internal memory transceiver unit 3b (step 109). If the two compared different level, it sets a fault in the transceiver module 3b (step 110), if not set, the presence of a fault in the primary processing module 3A.

However, if at step 107, it turns out that the difference does not exceed 10 dB, equipment diagnosis determines whether the emergency signal at the output of transceiver module 3b (step 112). If the emergency signal is present, set the presence of a fault in the amplifier-splitter 3b, otherwise determined by the absence of a fault in the receiving path BPS, and that's all diagnostic procedure is finished.

According to illustrated above, the previously known technique uses a scanning module of a base station (BCH) to control functions of the RF module. However, the disadvantage of the previously known method is that to detect any malfunction of the system requires an additional device, for example, and complex diagnostic method. In addition, the previously known method does not allow to detect a fault in the internal circuit transceiver module, but limited to the detection of faults in an RF module.

U.S. patent N 5,640,401, entitled "Device fault detection circuit of communication" (Communication Circuit Fault Detector"), discloses a device discovery communications to verify communication schemes. Device fault detection scheme of communication generates a test signal and injects a test signal in a communication scheme for comparing the original test signal with the returned test signal output from communication scheme. However, since such a device fault detection is intended only for fault detection in a conventional communication scheme through data, it is not possible to detect a fault in the internal circuit transceiver module BPS.

Fold the contents of the invention

The aim of the present invention is a self-diagnosis system transceiver module for fault detection in internal circuit by measuring the value of the control voltage of the automatic gain control and voltage values is their reference values.

Other objectives and advantages will be easier to understand from the following detailed description and the accompanying drawings.

Another objective of the present invention is to provide a receiving unit of the radio base transceiver station, comprising a step-down Converter and the operating cost of the transceiver with an external start, in which the step-down Converter includes an amplifier for amplifying the received signal, the automatic gain control (AGC) to control the signal level corresponding to the enhanced receive signal detection device (ACD) for detecting the voltage values of the detection of the intermediate frequency (if) and to determine the value of the control voltage AGC, and the management Board of the transceiver with an external launch includes analog-to-digital Converter for converting the voltage values of the detection inverter received from the down-Converter, and to convert the value of the control voltage AGC into a digital value, EEPROM (electronically-programmable permanent memory device) for storing predetermined reference values, table transformation is inago, minimum and average values of voltage detection inverter that meets the accept changes of the input signal.

Another objective of the present invention is a method of self-diagnostics for fault detection transceiver, comprising the steps of reading the predetermined first minimum value of the received input signal and a predetermined first maximum value of the received input signal to the receiving module to the radio, read the instantaneous value of the control voltage AGC, converting the instantaneous value of the control voltage level of the received input signal in accordance with the conversion table and establish the presence of a fault in the amplifier down Converter, if the received input signal, received in the result of the conversion is below a predetermined first minimum value of the received input signal, and determining if a fault in the operation of the amplifier down Converter, if the converted received input signal exceeds the first maximum value of the received input signal, scity intermediate frequency (if) and a predetermined second maximum value, corresponding to the voltage value of the detection of the intermediate frequency (if), if the level of the converted received input signal is between the predetermined first minimum value and a predetermined first maximum value of levels of the received input signal, reading the instantaneous value of the voltage detection inverter, which is measured by the registering device ARU, and determine whether a malfunction ARU down-Converter, if the instantaneous value of the voltage detection inverter below a predetermined second minimum value corresponding to the voltage value of the detection inverter, and determine whether a malfunction ARU down-Converter, if the instantaneous value of the voltage detection of the inverter exceeds the second maximum value, corresponding to the voltage value of the detection inverter.

An additional objective of the present invention is to provide a device for detecting faults in the transceiver receiving module of the radio base transceiver station, comprising a step-down Converter having an amplifier for amplifying the received the received input signal and the detecting device ARU for detecting instantaneous values of the voltage detection intermediate frequency (if) and to establish the instantaneous value of the control voltage AGC, and the operating cost of the transceiver with an external start with the microprocessor, analog-to-digital Converter for converting the instantaneous values of the voltage detection inverter and the instantaneous value of the control voltage AGC into a digital value, and a memory device for converting the instantaneous value of the control voltage AGC in the appropriate level of the received input signal and for storing predetermined reference values and the maximum, minimum and average values corresponding to the voltage value of the detection of the if signal corresponding to changes in the received input signals, in which the microprocessor compares the instantaneous value of the control voltage AGC, issued step-down Converter with a predetermined first minimum value and a predetermined first maximum value of levels of the received input signal, respectively, to determine whether there is malfunction in the operation of the gain down-Converter, if the level of the converted received input signal corresponding to the instantaneous value of the control voltage AGC below a predetermined first minimum value level prinitng signal, then, if the level of the converted received input signal remains within the range of acceptable input signal defined by the predefined first minimum value and the predefined first maximum value, compares the instantaneous value of the voltage detection inverter issued step-down Converter, to a predetermined second minimum value and a predetermined second maximum value corresponding to the voltage value of the detection inverter, respectively, to determine whether a malfunction ARU down-Converter, if the instantaneous value of the voltage detection inverter below the second minimum value corresponding to the voltage value of the detection inverter, or exceeds the second maximum value, corresponding to the voltage value of the detection inverter.

Brief description of drawings

FIG. 1 is a block diagram for illustrating the receive path RF usual BPS cellular communication mode mdcr.

FIG. 2 is a block diagram of the algorithm to illustrate the previously known method of fault diagnosis of receive path BPS.

FIG. 3 is fucking illustrate down-Converter and control Board transceiver with external start, meets the present invention.

FIG. 5 is an illustrative conversion table representing the control voltage of the automatic gain control and the levels of the received input signal.

FIG. 6 illustrates the voltage value of the detection inverter, responsive to the change in the received input.

FIG. 7 is a block diagram of the algorithm to illustrate how a self-test to diagnose transceiver module in accordance with the present invention.

Detailed description of the invention

In accordance with one implementation of the present invention a method of self-diagnostics for fault detection of the transceiver to the receiving module of the radio base transceiver station, comprising a step-down Converter 10 and a management fee of 20 transceiver with external start, in which the step-down Converter includes an amplifier 11 for amplifying the received input signal, the automatic gain control 15 (AGC) to control the signal level, the detecting device 16 AGC for detecting instantaneous values of voltage detektirovaniya fee transceiver with external start additionally includes analog-to-digital Converter 22 for converting the instantaneous values of the voltage detection inverter and the instantaneous value of the control voltage AGC into a digital value, and EEPROM 23 for storing a predetermined first minimum and a predetermined first maximum level of the received input signal, a predetermined second minimum and a predetermined second maximum values of the voltage detection if the conversion table for converting the instantaneous value of the control voltage AGC in the received input signal and the maximum, minimum and average values of voltage detection inverter that respond to the changes received input signals.

Another embodiment of the present invention is to provide a method of fault detection transceiver, comprising the steps of reading a predetermined first minimum value and a predetermined first maximum value of the received input signal to the receiving module for radio communication according to which a predetermined first minimum and a predetermined first maximum value set by the system operator in the process of developing hardware down-Converter in accordance with a dynamic range of a signal for lowering the th value of the control voltage level of the received input signal by viewing the conversion table, detection of a fault in the amplifier down Converter, if the level of the converted received input signal is below the predetermined first minimum value, determine whether a malfunction down-Converter, if the level of the converted received input signal exceeds the first maximum value of the received input signal, and then, if the level of the converted received input signal is between the predetermined first minimum and a predetermined first maximum value of the read predetermined second minimum value and a predetermined second maximum value corresponding to the voltage value of the detection of the intermediate frequency (if), read the instantaneous value of the voltage detection inverter, which is measured by the device 16, the AGC detection, detection of a malfunction in the operation of AGC down-Converter, if the instantaneous value of the voltage detection inverter below a predetermined second minimum value corresponding to the voltage value of the detection inverter, and determine whether a malfunction Aranae second maximum value, corresponding to the voltage value of the detection inverter.

Preferably the unit values of the received input signal, the corresponding values of the control voltage AGC stored in EEPROM is dBm.

Preferably in the EEPROM is stored maximum value of the voltage detection if the minimum value of the detection inverter and the average value of the detection inverter, which are measured in the validation process according to the combined accept input signals. A predetermined second minimum and a predetermined second maximum value, corresponding to the values of the voltage detection FC, determined in the calibration process, based on the measured maximum, minimum and average values of voltage detection inverter that is stored in EEPROM.

Preferably the method is performed periodically over a specified time.

Preferably the detecting device 16 AGC controls the gain of the AGC by detecting the voltage values of the detection inverter and determines the value of the control voltage AGC, based on this detected voltage value of the detection inverter.

pursued fault of the transceiver to the receiving module of the radio base transceiver station, comprising a step-down Converter 10, which includes an amplifier 11 for amplifying the received input signal, the automatic gain control 15 (AGC) to control the signal level corresponding to the enhanced accept the input signal, the detecting device 16 AGC for detecting instantaneous values of the voltage detection intermediate frequency (if) and to determine the value of the control voltage AGC control card 20 of the transceiver with an external start-up, which includes a microprocessor 21, an analog-to-digital Converter 22 for converting the voltage values of the detection inverter received from the down-Converter, and the value of the control voltage AGC into a digital value, a memory device for storing a predetermined first maximum and a predetermined first minimum values of the received input signal, a predetermined second maximum and a predetermined second minimum values corresponding to values of the voltage detection inverter, and for storing a conversion table for converting the converted digital mind instantaneous values of the control example is its voltage AGC difficult to detect, in which the microprocessor compares the instantaneous value of the control voltage AGC issued step-down Converter, to a predetermined first minimum value and a predetermined first maximum value of the received input signal to establish the existence of a malfunction in the operation of the gain down-Converter, if the value of the control voltage AGC below a predetermined first minimum value of the received input signal to or greater than a predetermined first maximum value of the received input signal, and then, if the level of the converted received input signal is between the predetermined first minimum and the predefined first maximum values, compares the instantaneous value of the voltage detection inverter issued step-down Converter, to a predetermined second minimum value and a predetermined second maximum value corresponding to the voltage value of the detection inverter, respectively, to determine whether a malfunction ARU down-Converter, if the instantaneous value of the voltage detection inverter below a pre-sstuwa values of the voltage detection FC.

Preferably, the microprocessor 21 periodically performs a comparison operation for control of the system.

Preferably the memory device 23 is implemented by means of electron-programmable permanent memory (EEPROM).

Preferably, in the memory device 23 stores a conversion table for converting the instantaneous value of the control voltage AGC in more detectable value of the received input signal. Preferably the unit of measurement level of the received input signal in the conversion table is dBm.

Preferably, in the memory device 23 stores the maximum, minimum and average values of the voltage detection inverter that previously measured in the validation process, according to the changes received input signals.

Preferably a predetermined first minimum value and a predetermined first maximum value of the received input signal set by the operator in accordance with a dynamic range of input signals on the step-down Converter. In other words, they are set on the basis of the operating range p is specified the second minimum value and a predetermined second maximum value, corresponding to the voltage value of the detection inverter are determined in the calibration process, based on the measured maximum, minimum and average values of voltage detection inverter that is stored in EEPROM.

Preferably, the analog-to-digital Converter converts the value of the control voltage AGC transmitted from the down-Converter, 8 - bit digital value, and thus the result of the conversion value of the control voltage AGC corresponds to one value in the range from 0 to 255.

The present invention provides a method and device for self-diagnosis for fault detection in an internal diagram of the transceiver module. Fig.3 is a block diagram for illustrating the receiving channel transceiver module. According depicted, the receive path includes a step-down Converter 10 for converting the received RF signal into the if signal, and the control card 20 of the transceiver with an external launcher control step-down Converter 10.

According to the present invention, determined by the presence or absence of a fault in panyhose the Converter 10 through periodic activities is based (AGC) and the instantaneous values of the voltage detection inverter with predetermined reference values, respectively.

Fig. 4 is a block diagram for illustrating the down-Converter 10 and the control circuit Board 20 of the transceiver with an external start-up, to which is applied the present invention. Step-down Converter 10 comprises a first amplifier 11 for amplifying the received signal, a variable attenuator 12 to adjust the level of the amplified signal, the first mixer 13 for converting the RF signal with the adjusted level to the proper frequency band-pass filter 14 to remove the unwanted signal from the converted signal, the automatic gain control (AGC) 15 to adjust the level of the filtered signal, the second mixer 17 for converting the signal with the adjusted level to the intermediate frequency (if), the second amplifier 18 for amplifying the converted signal and the output voltage detection if the detection unit 16 automatic control of amplification to detect the voltage values of the detection of the inverter output at the last stage of the down-Converter 10, and to determine the value of the control voltage AGC.

The management Board 20 of the transceiver with an external launch encompasses micro is spruce 22 for receiving a control value of the AGC voltage and the voltage values of the detection inverter from the down-Converter 10 and to convert these received values into digital values, and memory means for storing reference values, be compared with the value of the control voltage AGC and the voltage value of the detection inverter. The memory means is implemented by means of electron - programmable permanent memory (EEPROM).

As stated above, the step-down Converter regulates the output level using the AGC 15. AGC 15 amplifies the input signal with an arbitrary gain when the intensity of the input signal is in its own operating range, and enters the amplified signal. The detecting device 16 measures the AGC value In the voltage detection inverter, which is the final output signal down-Converter, reads the result of comparing the measured voltage with a reference value and register value And the control voltage AGC to control the gain of the AGC. Accordingly, the operation of AGC 15 and the detection unit 16 AGC allows downward Converter 10 to maintain the correct level of the output signal. Thus, the voltage value of the detection inverter, which is the final output signal down-Converter can be maintained at the correct one from whom According to the present invention, value And the control voltage AGC, which controls the AGC, and the value In the voltage detection inverter, which is the final output signal down-Converter are compared with corresponding reference values. This comparison is performed by the microprocessor 21, located on the control Board 20 of the transceiver with an external start. Value And the control voltage AGC and the value In the voltage detection inverter is converted into digital values by analog-to-digital Converter 22, which converts the two voltage values in 8-bit digital values. These two values are converted into digital values that are respectively in the range from 0 to 255. Then the microprocessor 21 receives the appropriate comparison value from the conversion table stored in the EEPROM 23, converted to a digital mean value of the control voltage AGC and the voltage values of the detection of the inverter, and then compares the corresponding comparison value with a preset reference value stored in the EEPROM 23, to detect faults in the down-Converter 10. Example of change of voltage detection inverter that meets the change in the average value detecting the if AGC 15.

The value of the control voltage AGC is used to establish the presence of a fault in the operation of the amplifier down-Converter 10 and varies depending on the intensity of the input signal supplied to the step-down Converter 10. Similarly, the voltage value of the detection inverter is used to establish the presence of irregularities in the operation of AGC down-Converter.

Fig. 5 illustrates an example of a conversion table, which includes a control voltage AGC and levels of acceptable input signal stored in the EEPROM 23 control Board 20 of the transceiver with an external start. Control of the AGC voltage, which is limited to within the operating range AGC, specified as a numeric value from 0 to 255, and the unit of measurement level of the received input signal is dBm. Each level of the received input signal and the corresponding control voltage, according shown in Fig. 3, is stored in the EEPROM 23 control Board 20 of the transceiver with an external start.

Transceiver module converts the measured control voltage AGC at the appropriate level of the received input signal, as shown n is equal accept the input signal is first measured, according to the working range of the transceiver module, the received input signal. In other words, they are set by the system operator in the process of developing hardware down-Converter. Reference value representing a predetermined second maximum and a predetermined second minimum value, corresponding to the values of the voltage detection FC, determined in the calibration process, based on the measured maximum, minimum and average values of voltage detection inverter that is stored in the EEPROM 23.

In addition, the present invention can be designed for the specific period of time diagnosing transceiver module in order to diagnose malfunctions transceiver module was carried out periodically by comparing the value of the control voltage AGC and the voltage values of the detection inverter with the corresponding reference values.

When the amplifier down Converter a fault occurs, the received input signal, which is transmitted from the AGC down-Converter, is outside the predetermined first maximum predely predetermined second maximum and minimum values. Accordingly, malfunction or amplifier, or ARU down-Converter are determined by comparison with predetermined reference values.

Fig. 7 is a block diagram of the algorithm to illustrate how the fault detection transceiver module in accordance with the present invention. Read predefined first maximum and a predefined first minimum levels of acceptable input signal stored in the EEPROM 23 (step 201). Read the instantaneous control voltage AGC generated by the automatic gain control (AGC) 15 transceiver module (step 202). The instantaneous control voltage measured by the detection device 16 AGC, and then is transmitted to the control card 20 of the transceiver with an external start. Measured control voltage AGC is converted to a digital mind, and the corresponding level of the received input signal is extracted (step 203) using a stored in the EEPROM 23 conversion table that converts the control voltage to the appropriate level of the received input signal.

The microprocessor 21, located on the control Board 20 of the transceiver with the same predetermined first minimum signal level (step 204). If the received input signal, the resulting transformation is below a predetermined first minimum signal level, the microprocessor 21 determines the presence of a fault in the amplifier down-Converter 10 (step 205). Similarly, the microprocessor 21 determines whether the received level of the input signal obtained by conversion in excess of the first maximum signal level (step 206), and, if the received level of the input signal obtained by the conversion is higher than a predetermined first maximum signal level, the microprocessor 21 determines whether there is a fault in the operation of the amplifier down-Converter 10 (step 207).

If the received input signal, received in the result of the conversion remains between a preset first predetermined maximum and second maximum levels of the signal, the microprocessor reads a predetermined second maximum and a predetermined second minimum value of the voltage detection inverter that is stored in the EEPROM 23 (step 208), and reads the instantaneous voltage detection if the measured AGC 15 acceptance is testirovanie FC, which is below a predetermined second minimum value (step 210), and if the measured instantaneous voltage detection the inverter falls below a predetermined second minimum value, determined by the presence of a fault in the operation of AGC down-Converter (step 211). Similarly, if the measured instantaneous voltage detection the inverter is higher than a predetermined second maximum value, the microprocessor determines whether a malfunction ARU down-Converter (step 213).

According to the present invention, by comparing the instantaneous data control voltage AGC and instant data voltage detection FC generated by the step-down Converter with predetermined reference values stored in the memory means, determined by the presence of faults in the transceiver module.

As a result, the application of the present invention allows to more easily manipulate the step-down Converter. Although illustrative implementations of the present invention have been described herein with reference to the accompanying drawings, it should be understood that the invention is not limited to these Varian is but the essence of the invention. All such changes and modifications are assumed to be included in the scope of the invention in accordance with the attached claims.

1. The method of self-diagnostics for fault detection of the transceiver to the receiving module of the radio base transceiver station of the type having a step-down Converter and the operating cost of the transceiver with an external start, power in panyhose Converter for amplifying the received input signal, the automatic gain control (AGC) to control the level of the signal derived from the amplified received input signal, the device detection AGC for detecting instantaneous values of the voltage detection intermediate frequency (if) and to determine the instantaneous value of the control voltage generated by the AGC, the management cost of the transceiver with an external start, includes analog-to-digital Converter for converting the instantaneous values of the voltage detection FC obtained from the down-Converter, and a control value of the AGC voltage into digital values, and EEPROM (electronically-programmable permanent memory device) for hranimogo input signal a predetermined first minimum and a predetermined first maximum level of the received input signal, a predetermined second minimum and a predetermined second maximum values corresponding to values of the voltage detection of the if signal, and the instantaneous values of the voltage detection signal of the inverter, responsive to the change of the received input signal, comprising stages, which reads a predetermined first minimum value of the received input signal and a predetermined first maximum value of the received level of the input signal stored in said EEPROM, read the instantaneous value of the control voltage generated by the AGC transform the instantaneous value of the control voltage in the level of the received input signal, comparing the level of the converted received input signal obtained by the conversion, to a predetermined first minimum value of the received input signal and to a predetermined first maximum value of the received input signal to establish the existence of a fault in the amplifier down Converter, if the level of the converted received input signal is outside the range between the predetermined first minimun accept the input signal, read a predetermined second minimum value corresponding to the voltage value of the detection of the intermediate frequency (if), and a predetermined second maximum value corresponding to the voltage value of the detection of the intermediate frequency (if), if the level of the converted received input signal is between the predetermined first minimum value of the received input signal and the predetermined first maximum value of the received input signal, reads the instantaneous value of the voltage detection inverter defined by the device detection AGC, and comparing the instantaneous value of the voltage detection inverter to a predetermined second minimum value corresponding to the voltage value of the detection inverter, and a predetermined second maximum value corresponding to the voltage value of the detection inverter, and detect faults in the work of the AGC down-Converter, if the instantaneous value of the voltage detection inverter is outside the range between the predetermined second minimum value of the voltage detection inverter and a predetermined second maximum value Sapronova accept an input signal and a predetermined first maximum value of the received input signal in advance store in EEPROM, on the basis of the operating range of acceptable input signal received by the transceiver.

3. The method according to p. 2, in which the unit of measurement level of the received input signal corresponding to the value of the control voltage AGC stored in EEPROM is dBm.

4. The method according to p. 3, in which the maximum value of the voltage detection if the minimum value of the detection inverter and the average value of the detection inverter that meets the accept changes of the input signal, in advance, save in EEPROM.

5. The method according to p. 4, in which a predetermined second minimum value and a predetermined second maximum value determined during the calibration process, based on the measured maximum, minimum and average values of voltage detection inverter that is stored in EEPROM.

6. The method according to p. 1 or 5 in which the said method periodically performs an operation of comparing and determining at a predetermined time and during the mentioned interval.

7. The method according to p. 1, comprising the additional step of adjusting the gain of the AGC by detecting the voltage values of the detection inverter and determine the value of the control voltage, the Gnostics for fault detection of the transceiver to the receiving module of the radio base transceiver station, containing step-down Converter having an amplifier for amplifying the received input signal, the automatic gain control (AGC) to adjust the level of the signal derived from the amplified received input signal, and the detecting device ARU for detecting instantaneous values of the voltage detection intermediate frequency (if) and to determine the instantaneous value of the control voltage AGC, and the operating cost of the transceiver with an external executable with the microprocessor, analog-to-digital Converter for converting the voltage values of the detection inverter received from the down-Converter, and the value of the control voltage AGC into a digital value, and a memory device for storing a predetermined first minimum value of the received input signal, a predetermined first maximum value of the received input signal, a predetermined second minimum value of the voltage detecting if a predetermined second maximum values of the voltage detection inverter and a conversion table for converting the instantaneous value of the control voltage AGC in bravenewcode signal, issued step-down Converter, to a predetermined first minimum value of the received input signal and the predetermined first maximum value of the received input signal, respectively, to determine whether there is malfunction in the operation of the gain down-Converter, if the level of the converted received input signal is outside the range between the predetermined first minimum value and a predetermined first maximum value of the received input signal, and if the level of the converted received input signal is in the range between the predetermined first minimum and a predetermined first maximum value of the received input signal, compares the instantaneous value of the voltage detection inverter, issued step-down Converter, to a predetermined second minimum value corresponding to the voltage value of the detection inverter, and a predetermined second maximum value corresponding to the voltage value of the detection inverter, respectively, to establish the existence of irregularities in the operation of AGC down-Converter if the output minimum and a predetermined second maximum values, the corresponding values of the voltage detection FC.

9. The device under item 8, in which the microprocessor periodically performs comparison and definition.

10. The device under item 9, in which the memory device includes electronic programmable permanent memory (EEPROM).

11. The device according to p. 10, in which the memory device includes a conversion table for converting the instantaneous value of the control voltage AGC in the received input.

12. The device according to p. 11, in which the unit of measurement level of the received input signal in the conversion table is dBm.

13. The device according to p. 10, in which the memory device stores the maximum, minimum and average values of the voltage detection inverter, which are measured in the validation process, according to the changes received input.

14. The device according to p. 13, in which a predetermined second minimum value corresponding to the voltage value of the detection inverter, and a predetermined second maximum value corresponding to the voltage value of the detection inverter are determined in the process calibro asasa in EEPROM.

15. The device according to p. 13, in which a predetermined first minimum value of the received input signal and a predetermined first maximum value of the received level of the input signal are determined in advance based on the operating range of acceptable input signal received by the transceiver.

16. The device under item 8, in which the a / d Converter converts the value of the control voltage AGC transmitted from the down-Converter, 8-bit digital value, causing the value of the control voltage AGC responds to a value in the range from 0 to 255.

17. The device under item 8 in which the step-down Converter additionally includes a variable attenuator for adjusting the amplified received signal input of the amplifier, a first mixer for converting the adjusted accept an input signal to the proper frequency band-pass filter to remove unwanted signals from the output signals of the first mixer, a second mixer for converting the signal with the adjusted level, obtained from the automatic gain control (AGC) to intermediate frequency (if) output signal of the voltage detection FC.

18. The device according to p. 14, in which the analog-to-digital Converter converts the value of the control voltage AGC transmitted from the down-Converter, 8-bit digital value, causing the value of the control voltage AGC responds to a value in the range from 0 to 255.

19. The device according to p. 15, in which the analog-to-digital Converter converts the value of the control voltage AGC transmitted from the down-Converter, 8-bit digital value, as a result, the value of the control voltage AGC, corresponds to the value in the range from 0 to 255.

 

Same patents:

The invention relates to electrical engineering and can be used in lines of digital radio communications, and in particular relates to a method of reception of multipath signals in the system multiple access, code-division multiplexing (СDМА) and can be used in the receiving equipment of the base station

The invention relates to a device for the transmission of discrete data and can be used, for example, in computing systems, devices, high-speed data

The invention relates to electrical engineering and can be used as a highly efficient source of microwave power, in particular, as a transmitter for RLS moving objects with the Doppler signal processing

The invention relates to information processing and can be used in the processing of useful signals in radio engineering systems in terms of the impact of correlated noise

The invention relates to information processing and can be used in the processing of useful signals in radio engineering systems in terms of the impact of correlated noise

The invention relates to a direct conversion receiver for radio system type portable cellular radiotelephones, cordless phones, pagers, etc

The invention relates to electrical engineering and can be used for passive monitoring for solving the problem of hidden determine the structure of the communication systems, which is achievable technical result

The invention relates to radio engineering and can be used in wireless systems for remote control of technical parameters of radio stations

The invention relates to the field of radio, namely transmitting technique

FIELD: radio communications.

SUBSTANCE: pulse noise is detected upon conversion of signal received into intermediate frequency, noise active time is determined, information signal is disconnected from amplifier incorporated in superheterodyne receiver, noise-affected part of information signal is recovered by eliminating simulator signals during extrapolation, and superheterodyne receiver is checked for serviceability at intermediate frequency.

EFFECT: enhanced precision of superheterodyne receiver serviceability check.

1 cl, 1 dwg

Up!