JP2008048159A - System and method for evaluating radio base-station device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio base-station device evaluating system evaluating the operation of a radio base-station device when connecting with portable telephones with a plurality of lines at a lower cost. <P>SOLUTION: The radio base-station device evaluating system has an RNC simulator sending down-link signals containing data for evaluation to the radio base-station device, and comparing data contained in up-link signals with original data for every line and evaluating data contained in the up-link signals; and a UE simulator being connected to the radio base-station device with one line, transmitting the up-link signals to the radio base-station device when receiving the down-link signals, and comparing and evaluating received data and stored data. The radio base-station device evaluating system further has a signal generator multiplexing the up-link signals for residual lines, and transmitting the multiplexed up-link signals to the radio base-station device; and a signal receiver connected to the radio base-station device with the residual lines, demodulating the down-link signals for the residual lines to base-band signals, and conserving the demodulated down-link signals. The radio base-station device evaluating system further has a received-signal decoder converting the base-band signals into data by decoding for every line and comparing and evaluating converted data and stored data. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a radio base station apparatus evaluation system and a radio base station apparatus evaluation method for evaluating the operation of a radio base station apparatus of a mobile phone.

  The mobile phone system is provided with a plurality of radio base station devices that communicate wirelessly with the mobile phone, and an RNC (Radio Network Controller) connected to the plurality of radio base station devices via a dedicated line. ing. The RNC controls a plurality of radio base station apparatuses. When the user operates the mobile phone to make a call, the radio base station device communicates with the mobile phone wirelessly, and the RNC communicates with the radio base station device for control.

  Conventionally, when evaluating communication between a mobile phone and an RNC and a radio base station apparatus, a UE (User Equipment: mobile equipment) simulator is used instead of a real mobile phone, and an RNC simulator is used instead of a real RNC. I was using it.

On the other hand, Patent Document 1 discloses an example of a technique for performing a series of inspections in accordance with the 3GPP recommendation for a wireless base station apparatus of a WCDMA (Wideband CDMA) mobile phone.
JP 2003-224534 A

  Most commercially available simulators for evaluating a radio base station apparatus of a WCDMA mobile phone are mostly for the purpose of performing a series of tests in accordance with 3GPP recommendations. In addition, although RNC simulators and UE simulators are commercially available, when evaluating multi-line connection, it is very expensive because UE simulators are required for the number of lines when trying to build an evaluation system using these simulators. End up.

  There is also a report that builds an evaluation system for the entire RAN (Radio Access Network) system using an actual RNC or mobile phone, but the scale of the evaluation system is very large, and the radio base station unit alone When performing the function evaluation, there is a risk that uncertain elements may enter due to the influence of the RNC or mobile phone.

  The present invention has been made to solve the above-described problems of the prior art, and has made it possible to evaluate the operation of a radio base station apparatus at the time of connecting a mobile phone and a plurality of lines at a lower cost. An object of the present invention is to provide a radio base station apparatus evaluation system and a radio base station apparatus evaluation method.

In order to achieve the above object, a radio base station apparatus evaluation system according to the present invention includes:
Data for evaluation is stored, a plurality of lines are set in the radio base station apparatus, a downlink signal including the data is transmitted to the radio base station apparatus via the plurality of lines, and an uplink signal including the data is transmitted. When receiving via the radio base station apparatus, a radio control apparatus simulator that compares and evaluates data included in the uplink signal and data stored in advance for each line;
The data is stored, wirelessly connected to the radio base station apparatus through one line, and when the downlink signal is received from the radio base station apparatus, an uplink signal including the data is transmitted to the radio base station apparatus, A mobile device simulator for comparing and evaluating data read from the downlink signal and data stored in advance;
The data is stored, an uplink signal including the data is generated, and the generated uplink signal is multiplexed by the remaining line obtained by removing one line from the plurality of lines, and the wireless base station device is multiplexed via the remaining line. A signal generator for wireless transmission; and
A signal receiver that wirelessly connects to the radio base station apparatus via the remaining line, and that demodulates and stores a downlink signal for the remaining line received from the radio base station apparatus into a baseband signal;
The data is stored, connected to the signal receiver, the baseband signal stored in the signal receiver is decoded for each line and converted into data, and the converted data is compared with the previously stored data A received signal decoding device to be evaluated;
It is the structure which has.

  In the present invention, the mobile device simulator is operated as a mobile device connected to the radio base station apparatus through a single line, and the signal generator and the signal receiver are caused to execute a plurality of line processes with the radio base station apparatus in a pseudo manner, Evaluation of the downlink signal of the remaining line is executed by the received signal decoding device. Therefore, it is possible to evaluate the mutual influence of one line and the remaining line among a plurality of lines set in the radio base station apparatus from the evaluation results by the mobile device simulator, radio control apparatus simulator, and received signal decoding apparatus.

  Since the received signal decoding device evaluates the downlink signal for the remaining lines except for one of the multiple lines set in the mobile phone radio base station apparatus, the evaluation when connecting multiple lines at a lower cost than before The operation of data transmission / reception can be evaluated. In addition, since one of the plurality of lines set in the radio base station apparatus is connected for communication with the radio base station apparatus by the UE simulator, it is possible to evaluate when the mobile device performs a specific operation. By providing the UE simulator to the minimum necessary, it is possible to avoid an increase in the scale of the entire system, and it is possible to suppress the entry of uncertain elements in the evaluation due to the influence of devices in the system.

  In the present embodiment, a method for evaluating the operation of a radio base station apparatus of a WCDMA cellular phone using the WCDMA scheme as a cellular phone communication scheme will be described.

  The configuration of the radio base station apparatus evaluation system of this embodiment will be described.

  FIG. 1 is a block diagram showing a configuration example of a radio base station apparatus evaluation system according to this embodiment.

  As shown in FIG. 1, the radio base station apparatus evaluation system 1 includes an RNC simulator 11, a UE simulator 12, a signal generator 13 that generates multiple uplink signals on a plurality of pseudo Uu (radio section) points, , A signal receiver 14 that receives a downlink signal on the Uu point and stores it as a baseband signal, a received signal decoding device 15 that decodes the baseband signal stored by the signal receiver 14 for each line, and controls each part It is the structure which has the control apparatus 16 which performs.

  The RNC simulator 11 is connected to the radio base station apparatus 10 at an Iub (wired section) point via an ATM (Asynchronous Transfer Mode) -I / F. The UE simulator 12, the signal generator 13, and the signal receiver 14 are connected to the radio base station apparatus 10 via the RF-I / F at the Uu point. The signal receiver 14 and the received signal decoding device 15 are connected via a dedicated line for data transfer. The control device 16 is connected to each of the RNC simulator 11, the UE simulator 12, the signal generator 13, the signal receiver 14, and the received signal decoding device 15 via a dedicated line for control signals.

  The configuration of the RNC simulator 11 will be described. FIG. 2 is a block diagram showing a configuration example of the RNC simulator. As illustrated in FIG. 2, the RNC simulator 11 includes an RNC communication unit 112 that transmits and receives data to and from the radio base station device 10 and the control device 16, an RNC storage unit 114, and an RNC control unit 116. The RNC control unit 116 includes a DSP (Digital Signal Processor) (not shown) that executes predetermined processing according to a program, and a memory (not shown) for storing the program. The RNC storage unit 114 stores setting information corresponding to the simulation contents for evaluating the radio base station apparatus 10. When setting information is received from the control device 16 via the RNC communication unit 112, the RNC control unit 116 stores the setting information in the RNC storage unit 114. The setting information includes evaluation data.

  The RNC simulator 11 performs an operation evaluation when the radio base station apparatus 10 to be evaluated is connected to a plurality of lines, so that a call evaluation (C-plane) load evaluation function for setting and disconnecting a plurality of lines, and an uplink / downlink And a load evaluation function for transmitting / receiving (U-plane) evaluation data on the Iub point of the link. In the evaluation of U-plane, the BLER / BER measurement of the uplink signal is performed in order to compare the evaluation data included in the uplink signal with the original evaluation data. When the RNC control unit 116 receives the uplink signal from the UE simulator 12 and the signal generator 13 via the radio base station apparatus 10, the RNC control unit 116 performs the uplink signal BLER / B for each line for the evaluation data according to the setting information. Perform BER measurement. Then, the measurement result is transmitted to the control device 16.

  Next, the configuration of the UE simulator 12 will be described. FIG. 3 is a block diagram illustrating a configuration example of the UE simulator. As shown in FIG. 3, the UE simulator 12 includes a UE communication unit 122 that transmits and receives data to and from the control device 16, an RF signal transmission and reception unit 123 that transmits and receives RF signals to and from the radio base station device 10, a UE storage unit 124, and a UE And a control unit 126. The UE control unit 126 includes a DSP (not shown) that executes predetermined processing according to a program, and a memory (not shown) for storing the program. The UE simulator 12 simulates the function of one mobile device of the WCDMA mobile phone. When receiving the setting information from the control device 16 via the UE communication unit 122, the UE control unit 126 stores the setting information in the UE storage unit 124. The setting information includes evaluation data.

  The UE control unit 126 operates as follows according to the setting information. When receiving the downlink signal via the RF signal transmission / reception unit 123, the UE control unit 126 reads the evaluation data from the UE storage unit 124, generates an uplink signal including the evaluation data, and transmits it to the radio base station apparatus 10. Transmit by RF signal. Further, BLER / BER measurement is performed using the evaluation data read from the downlink signal and the evaluation data stored in the UE storage unit 124. Then, the measurement result is transmitted to the control device 16.

  Next, the configuration of the signal generator 13 will be described. FIG. 4 is a block diagram showing an example of the configuration of the signal generator. As shown in FIG. 4, the signal generator 13 includes a communication unit 132 that transmits and receives data to and from the control device 16, an RF signal generation unit 133 that transmits an RF signal to the radio base station device 10, and a signal generation unit 135. . The signal generation unit 135 includes a processing unit 136 and a data storage unit 134. The processing unit 136 includes a DSP (not shown) that executes predetermined processing according to a program, and a memory (not shown) for storing the program. When the processing unit 136 receives the setting information from the control device 16 via the communication unit 132, the processing unit 136 stores the setting information in the data storage unit 134. Evaluation data is stored in the setting information.

  The processing unit 136 includes evaluation data for each remaining line that is a line excluding one line of the UE simulator 12 among a plurality of lines set with the radio base station apparatus 10 according to the setting information. Generate an uplink signal. Then, an uplink multiplexed signal, which is a signal obtained by multiplexing these uplink signals, is converted into an RF signal and transmitted from the RF signal generating unit 133 to the radio base station apparatus 10. Since the signal generator 13 is disclosed in Japanese Patent Laid-Open No. 2003-333642, a detailed description thereof is omitted here.

  Next, the configuration of the signal receiver 14 will be described. FIG. 5 is a block diagram showing a configuration example of a signal receiver. As shown in FIG. 5, the signal receiver 14 includes a communication unit 142 that transmits and receives data to and from the control device 16, an RF signal reception unit 143 that receives an RF signal from the radio base station device 10, a control unit 146, and a data storage Part 144. The control unit 146 includes a DSP (not shown) that executes predetermined processing in accordance with a program, and a memory (not shown) for storing the program.

  When receiving the setting information from the control device 16 via the communication unit 142, the control unit 146 stores the setting information in the data storage unit 144. When the control unit 146 receives the downlink signal on the Uu point of the radio base station apparatus 10 via the RF signal receiving unit 143, the control unit 146 demodulates the downlink signal into a baseband signal according to the setting information, and the data storage unit 144. Save to. Then, the baseband signal stored in the data storage unit 144 is transmitted to the reception signal decoding device 15.

  Next, the configuration of the received signal decoding device 15 will be described. FIG. 6 is a block diagram showing a configuration example of the received signal decoding apparatus. As illustrated in FIG. 6, the received signal decoding device 15 includes a communication unit 152 that transmits and receives data to and from the signal receiver 14 and the control device 16, a storage unit 154, and a control unit 156. The control unit 156 includes a DSP (not shown) that executes predetermined processing according to a program, and a memory (not shown) for storing the program.

  When receiving the setting information from the control device 16 via the communication unit 152, the control unit 156 stores the setting information in the storage unit 154. This setting information includes evaluation data. When receiving the baseband signal for the remaining line from the signal receiver 14, the control unit 156 stores the baseband signal in the storage unit 154. Subsequently, the baseband signal is sequentially decoded for each line in accordance with the setting information, and converted into evaluation data. Since the decoding process is executed for each remaining line, the process takes time if the number of remaining lines is enormous. Therefore, the decoding process may be performed offline. When the decoding process is completed, the evaluation data stored in advance in the storage unit 154 and the evaluation data obtained by decoding the baseband signal are compared and evaluated. As an evaluation method, BLER / BER measurement is performed. Then, the measurement result is transmitted to the control device 16.

  Next, the configuration of the control device 16 will be described. FIG. 7 is a block diagram illustrating a configuration example of the control device. As shown in FIG. 7, the control device 16 includes a communication unit 162 that transmits / receives data to / from other configurations of the system, a storage unit 164, a processing unit 166, and an operation unit 169 for an operator to input instructions. Have The processing unit 166 includes a CPU (Central Processing Unit) 167 that executes predetermined processing according to a program, and a program memory 168 that stores the program. Information describing the contents of the simulation is registered in the storage unit 164. The processing unit 166 transmits setting information to each unit via the communication unit 162 in accordance with the simulation contents stored in the storage unit 164. When the measurement results are received from each of the RNC simulator 11 and the reception signal decoding device 15, the measurement results are collected for each of a plurality of channels set in the radio base station device 10 and stored in the storage unit 164.

  Conditions for evaluating the radio base station apparatus 10 may be set in the simulation contents. It is also possible to evaluate the operation of the radio base station apparatus 10 by causing the mobile device to perform a specific operation. The specific operation is, for example, a case where the mobile device is handed over in a compressed mode. The information describing the simulation content may be a program for operating each device of the system according to the simulation content, and the program registered for each device of the system corresponds to the simulation. It may be information for setting conditions.

  In the present embodiment, the BLER / BER measurement of the evaluation data is performed and the U-plane evaluation of the radio base station apparatus 10 is performed, but other methods may be used.

  Next, the operation of the radio base station apparatus evaluation system of this embodiment will be described. Here, the number of lines set in the radio base station apparatus 10 is n (n is a positive integer of 2 or more).

  FIG. 8 is a flowchart showing an operation procedure of the radio base station apparatus evaluation system. The operator operates the operation unit 169 of the control device 16 to register information describing the simulation contents in the storage unit 164. When information describing the simulation contents is registered, the control device 16 transmits setting information to the RNC simulator 11, the UE simulator 12, the signal generator 13, the signal receiver 14, and the received signal decoding device 15. When each device receives the setting information via the communication unit, the device stores the setting information in the storage unit.

  When the operator inputs an instruction to start the simulation by operating the operation unit 169 of the control device 16, the control device 16 sends start signals for starting the simulation to the RNC simulator 11, the UE simulator 12, and the signal generator 13. And transmitted to the signal receiver 14 (step 101). When the RNC simulator 11 receives the start signal from the control device 16, the number of lines corresponding to the number n of lines to the radio base station apparatus 10 is evaluated for U-plane load evaluation according to the setting information stored in the RNC storage unit 114. Setting is performed, and transmission of a downlink signal corresponding to the line setting is started (step 102). This downlink signal includes data for evaluation.

  When receiving the downlink signal from the RNC simulator 11 via the Iub point, the radio base station apparatus 10 converts the downlink signal into an RF signal, and transmits the downlink signal to the UE simulator 12 and the signal receiver 14 via the Uu point. Is transmitted (step 103).

  The UE simulator 12 performs channel setting for the own device for one of the n channels according to the setting information stored in the UE storage unit 124, and receives a downlink signal from the radio base station device 10. When the downlink signal is received, the evaluation data stored in the UE storage unit 124 is read, and the uplink signal including the read evaluation data is converted to an RF signal and transmitted to the radio base station apparatus 10 via the Uu point. (Step 104). When receiving the uplink signal from the UE simulator 12, the radio base station apparatus 10 converts the uplink signal into an uplink signal on the Iub point and transmits the uplink signal to the RNC simulator 11. Further, the UE simulator 12 performs BLER / BER measurement of the evaluation data read from the downlink signal and the evaluation data stored in the UE storage unit 124 (step 105). Then, the measurement result is transmitted to the control device 16.

  On the other hand, when the signal generator 13 receives the start signal from the control device 16, according to the setting information stored in the data storage unit 134, (n-1) lines excluding the line for the UE simulator 12 among the n lines The uplink multiplexed signal obtained by multiplexing the uplink signals of the minute is converted into an RF signal, and the RF signal is transmitted to the radio base station apparatus 10 via the Uu point (step 106). When receiving the RF signal of the uplink multiplexed signal from the signal generator 13, the radio base station apparatus 10 converts the uplink multiplexed signal into an uplink multiplexed signal on the Iub point and transmits it to the RNC simulator 11.

  When the RNC simulator 11 receives the uplink signal of the UE simulator 12 and the uplink multiplexed signal of the signal generator 13 from the radio base station apparatus 10 via the Iub point, according to the setting information stored in the RNC storage unit 114, With respect to the U-plane load evaluation uplink signals for n lines set in step 102, BLER / BER measurement is performed for each line (step 107).

  In addition, the RNC simulator 11 executes line setting and disconnection processing for a plurality of lines for C-plane load evaluation according to the setting information, and starts saving the history of the processing in the RNC storage unit 114 ( Step 108). Then, the RNC simulator 11 transmits the measurement result of the U-plane load evaluation for n lines to the control device 16.

  When the signal receiver 14 receives a downlink signal transmitted from the radio base station apparatus 10 via the Uu point as an RF signal, the signal receiver 14 converts the downlink signal into a baseband signal according to the setting information stored in the data storage unit 144. And stored in the data storage unit 144 (step 109). Thereafter, the baseband signal stored in the data storage unit 144 is transmitted to the reception signal decoding device 15.

  When receiving the baseband signal from the signal receiver 14, the reception signal decoding device 15 transmits the baseband signal to the (n−1) line set in step 102 according to the setting information stored in the storage unit 154. The data is sequentially decoded and BLER / BER measurement is performed on the evaluation data (step 110). Then, the measurement result is transmitted to the control device 16. In the WCDMA system, code-multiplexed data can be decoded using user setting parameters set for each line. Therefore, at the time of decoding processing in the reception signal decoding device 15, it is possible to carry out offline processing without performing decoding processing of each line in real time.

  The control device 16 receives the BLER / BER determination result of the uplink signal of each U-plane evaluation line measured in step 107 from the RNC simulator 11, and the C-plane evaluation line processing result measured in step 108. Are collected from the RNC simulator 11. Also, the BLER / BER measurement result of the downlink signal for one line measured in step 105 is collected from the UE simulator 12. Also, the BLER / BER measurement results of the downlink signals for each line measured in step 108 are collected from the received signal decoding device 15 (step 111). By analyzing the measurement data collected in step 111, it is possible to evaluate the operation of the wireless base station device of the WCDMA mobile phone when connected to multiple lines.

  Although step 103 and step 106 have been described as being processed at different times in time series, these processes may be performed almost simultaneously. Further, the processing of steps 103 to 111 is not limited to once, and may be performed a plurality of times.

  As described above, the radio base station apparatus evaluation system of the present embodiment causes the received signal decoding apparatus to evaluate the downlink signal of the remaining line excluding one line of the UE simulator. The operation of C-plane and U-plane when connected to a plurality of lines can be evaluated for each line. In addition, it is possible to evaluate the mutual influence of one line and the remaining line among a plurality of lines set in the radio base station apparatus. Since there is no need to prepare UE simulators for the number of lines, the system can be prevented from becoming expensive.

  Further, by providing the UE simulator to the minimum necessary, it is possible to avoid an increase in the scale of the entire system, and it is possible to suppress indeterminate elements from entering the evaluation due to the influence of devices in the system.

  In addition, since one of the multiple lines set in the radio base station apparatus is connected to the radio base station apparatus using the UE simulator, it is also possible to evaluate when a mobile device performs a specific operation. It is. By performing a specific operation on one line set in the UE simulator, it is possible to evaluate the influence on other lines other than that line. It is also possible to evaluate whether or not other lines operate without being affected when a part of the line disconnection situation is generated and a load is applied to the internal processing of the radio base station apparatus.

  Furthermore, it is possible to temporarily store the downlink signals for the number of lines and evaluate them offline after the simulation. Therefore, even if the number of lines is enormous, detailed evaluation can be performed for each line.

  The present embodiment evaluates the influence on other lines when a mobile station wirelessly connected to the radio base station apparatus through one line is caused to perform a specific operation. A specific operation is to execute a handover sequence in the compressed mode.

  The switching to the compressed mode is originally specified by the RNC using different protocols for the radio base station apparatus and the mobile station, but in the radio base station apparatus evaluation system 1 of this embodiment, the control apparatus 16 instructs the switching. A switching control signal that is a signal for transmitting the signal to the RNC simulator 11 and the UE simulator 12 is transmitted.

  The operation of the radio base station apparatus evaluation system of the present embodiment will be described with reference to FIG.

  After the line setting is performed in step 102 shown in FIG. 8, while the processing from step 103 to step 110 is repeated, the control device 16 monitors the SFN (System Frame Number) value that can be acquired by the UE simulator 12. A switch control signal for instructing the RNC simulator 11 and the UE simulator 12 to switch to the compressed mode is transmitted at the same timing. When each of the RNC simulator 11 and the UE simulator 12 receives the switching control signal from the control device 16, it executes a handover sequence in the compressed mode. Thereafter, in step 111, the control device 16 collects measurement results before and after switching to the compressed mode.

  In this embodiment, when one of the plurality of lines of the radio base station apparatus 10 is connected to the UE simulator 12 and the other plurality of lines are connected to the signal receiver 14, the compressed mode By executing a specific sequence such as a handover sequence according to the above with respect to the line set by the UE simulator 12, it is possible to evaluate the influence of the sequence execution on one line on other lines. On the other hand, the influence of other lines can be evaluated for one line on which a specific operation is performed.

  The present embodiment evaluates the influence on the communication by the maintenance work of the radio base station apparatus.

  The radio base station apparatus 10 has a component common to a plurality of sectors and a component different for each sector. If there is a problem with a circuit board (hereinafter referred to as a card) in a different component for each sector, it is necessary for the administrator to perform a card reset to remove the defective card and insert a new card. The radio base station apparatus 10 is programmed in advance so as to execute the processing corresponding to the card exchange target sector in another sector during the card reset. Therefore, the processing load of other sectors increases during the card reset.

  By performing card reset in the radio base station apparatus 10 while repeating the processing of steps 103 to 106 shown in FIG. 8 a plurality of times, it is possible to control call control and evaluation data transmission / reception in such a situation. It is possible to evaluate whether there is such an effect.

  In this embodiment, as described above, when a part of the radio base station apparatus is set in an abnormal state and a situation in which a part of the line is disconnected is simulated, how much the other lines have an influence. You can check if you want to receive it.

It is a block diagram which shows the example of 1 structure of the radio base station apparatus evaluation system of this embodiment. It is a block diagram which shows the example of 1 structure of a RNC simulator. It is a block diagram which shows the example of 1 structure of UE simulator. It is a block diagram which shows the example of 1 structure of a signal generator. It is a block diagram which shows the example of 1 structure of a signal receiver. It is a block diagram which shows the example of 1 structure of a received signal decoding apparatus. It is a block diagram which shows the example of 1 structure of a control apparatus. It is a flowchart which shows the operation | movement procedure of the radio base station apparatus evaluation system of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radio base station apparatus evaluation system 11 RNC simulator 12 UE simulator 13 Signal generator 14 Signal receiver 15 Received signal decoding apparatus 16 Control apparatus

Claims (4)

Data for evaluation is stored, a plurality of lines are set in the radio base station apparatus, a downlink signal including the data is transmitted to the radio base station apparatus via the plurality of lines, and an uplink signal including the data is transmitted. When receiving via the radio base station apparatus, a radio control apparatus simulator that compares and evaluates data included in the uplink signal and data stored in advance for each line;
The data is stored, wirelessly connected to the radio base station apparatus through one line, and when the downlink signal is received from the radio base station apparatus, an uplink signal including the data is transmitted to the radio base station apparatus, A mobile device simulator for comparing and evaluating data read from the downlink signal and data stored in advance;
The data is stored, an uplink signal including the data is generated, and the generated uplink signal is multiplexed by the remaining line obtained by removing one line from the plurality of lines, and the wireless base station device is multiplexed via the remaining line. A signal generator for wireless transmission; and
A signal receiver that wirelessly connects to the radio base station apparatus via the remaining line, and that demodulates and stores a downlink signal for the remaining line received from the radio base station apparatus into a baseband signal;
The data is stored, connected to the signal receiver, the baseband signal stored in the signal receiver is decoded for each line and converted into data, and the converted data is compared with the previously stored data A received signal decoding device to be evaluated;
A radio base station apparatus evaluation system. The received signal decoding device comprises:
The radio base station apparatus evaluation system according to claim 1, wherein the baseband signal stored in the signal receiver is stored, and the baseband signal is sequentially decoded offline for each line.   The radio base station apparatus evaluation system according to claim 1 or 2, further comprising a control apparatus connected to the radio control apparatus simulator, the mobile device simulator, and the reception signal decoding apparatus, and collecting evaluation results from each of these apparatuses. A radio base station apparatus evaluation method for evaluating the operation of a radio base station apparatus,
Setting a plurality of lines in the radio base station apparatus, causing the radio base station apparatus to transmit a downlink signal including data for evaluation via the plurality of lines,
When the downlink signal is received for one of the plurality of lines, an uplink signal including the data is transmitted to the radio base station apparatus, data read from the downlink signal and data stored in advance Compare and evaluate
Generating an uplink signal including the data, multiplexing the generated uplink signal for the remaining line obtained by removing one line from the plurality of lines, and transmitting the multiplexed signal to the radio base station apparatus via the remaining line;
When the uplink signal is received via the radio base station apparatus, the data included in the uplink signal and the data stored in advance are compared and evaluated for each line,
Demodulate the downlink signal for the remaining line received from the radio base station apparatus into a baseband signal,
A radio base station apparatus evaluation method, wherein the baseband signal is decoded for each line and converted into data, and the converted data is compared with data stored in advance.

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