CN104980960B - Switching device of TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system - Google Patents
Switching device of TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system Download PDFInfo
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- CN104980960B CN104980960B CN201510416601.5A CN201510416601A CN104980960B CN 104980960 B CN104980960 B CN 104980960B CN 201510416601 A CN201510416601 A CN 201510416601A CN 104980960 B CN104980960 B CN 104980960B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The invention discloses a switch switching device of a TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system, which comprises a plurality of double-pole double-throw switches, a plurality of single-pole double-throw switches, a plurality of double-pole single-throw switches and a single-pole triple-throw switch K3-9. According to the invention, different switch connecting paths are controlled by software, multi-switch combination control switching is carried out according to the requirements of TD-LTE/LTE-Advanced base station radio frequency consistency test equipment and the requirements of different test examples of the base station, so that the rapid scheduling of a plurality of instruments of the TD-LTE/LTE-Advanced base station radio frequency consistency test system and the cooperative work of the instruments are met, and meanwhile, the radio frequency design index is ensured to meet the requirement of 3GPP related base station radio frequency consistency.
Description
Technical Field
The invention relates to the field of application of TD-LTE base station radio frequency conformance testing, in particular to a switch switching device of a TD-LTE/TD-LTE-Advanced base station radio frequency conformance testing system.
Background
With the large-scale construction of the TD-LTE network and the promotion of the TD-LTE-Advanced technology, the base station radio frequency consistency test system plays a very critical role as a key ring for testing and verifying before network deployment. 3GPP TS36.141 defines all radio frequency consistency test cases of base station network access test, and requires precise test of each test case of the base station, so that test instruments with different functions are required to test the test cases, and for the base station research and development and production test process, the problem that needs to be solved more and more urgently is how to schedule so many test instruments, how to avoid frequent and complex connection test cables for different test cases and how to improve the test efficiency.
In the traditional base station radio frequency consistency test, related test instruments are manually connected to different test cases through cables, power dividers, attenuators and the like, so that the defects of complex test process, long test time and low test efficiency are caused, and meanwhile, due to the fact that the connection is too complex, the frequency response of the whole measurement channel and the channel gain are difficult to be well calibrated and compensated, the switch switching device of the TD-LTE/LTE-Advanced base station radio frequency consistency test system is urgently developed.
Disclosure of Invention
The invention aims to provide a switch switching device of a TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system, which is used for solving the problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch auto-change over device which characterized in that: the system comprises double-pole double-throw switches K2-1-K2-5, K3-1-K3-6, single-pole double-throw switches K2-7, K2-8 and K3-7, double-pole single-throw switches K2-6 and K2-9, and a single-pole triple-throw switch K3-9; wherein, one input end of the double-pole double-throw switch K2-1 is connected with a base station antenna 1, one input end of the double-pole double-throw switch K3-1 is connected with a base station antenna 2, one input end of the double-pole double-throw switch K3-2 is connected with a base station antenna 3, one input end of the double-pole double-throw switch K3-3 is connected with a base station antenna 4, one input end of the double-pole double-throw switch K3-4 is connected with a base station antenna 5, one input end of the double-pole double-throw switch K3-5 is connected with a base station antenna 6, one input end of the double-pole double-throw switch K3-6 is connected with a base station antenna 7, the other input end of the double-pole double-throw switch K2-1 is connected with one input end of a combiner 1 with isolation, the other input end of the double-pole double-throw switch K3-1 is connected with one, the other input end of the double-pole double-throw switch K3-2 is connected with one input end of a combiner 3 with isolation, the other input end of the double-pole double-throw switch K3-3 is connected with one input end of a combiner 4 with isolation, the other input end of the double-pole double-throw switch K3-4 is connected with one input end of a combiner 5 with isolation, the other input end of the double-pole double-throw switch K3-5 is connected with one input end of a combiner 6 with isolation, the other input end of the double-pole double-throw switch K3-6 is connected with one input end of a combiner 7 with isolation, the other input end of the combiner 7 is connected with a base station antenna 8, the output end of the combiner 7 is connected with one output end of the double-pole double-throw switch K3-6, the other output end of the double-pole double-throw switch K3-6 is connected with the other input end of the combiner 6, the output end of the combiner 6 is connected with one output end of a double-pole double-throw switch K3-5, the other output end of the double-pole double-throw switch K3-5 is connected with the other input end of the combiner 5, the output end of the combiner 5 is connected with one output end of a double-pole double-throw switch K3-4, the other output end of the double-pole double-throw switch K3-4 is connected with the other input end of the combiner 4, the output end of the combiner 4 is connected with one output end of a double-pole double-throw switch K3-3, the other output end of the double-pole double-throw switch K3-3 is connected with the other input end of the combiner 3, the output end of the combiner 3 is connected with one output end of a double-pole double-throw switch K3-2, the other output end of the double-pole double-throw switch K3-2 is connected with the other input end of the combiner 2, the output end of the combiner 2 is connected with one output, the other output end of the double-pole double-throw switch K3-1 is connected with the other input end of the combiner 1, the output end of the combiner 1 is connected with one output end of the double-pole double-throw switch K2-1, and the other output end of the double-pole double-throw switch K2-1 is connected with the input end of the single-pole three-throw switch K3-9;
one output end of the single-pole three-throw switch K3-9 is connected with one input end of a double-pole double-throw switch K2-2, the other input end of the double-pole double-throw switch K2-2 is connected with the input end of an attenuation device, one output end of the double-pole double-throw switch K2-2 is connected with the output end of the attenuation device, the other output end of the double-pole double-throw switch K2-2 is connected with one input end of a double-pole double-throw switch K2-3, the other input end of the double-pole double-throw switch K2-3 is connected with the input end of a filter device, one output end of the double-pole double-throw switch K2-3 is connected with the output end of the filter device, the other output end of the double-pole double-throw switch 387K 5-3 is connected with the input end of the single-pole double-throw switch K3-7, one output end of the single-pole double-throw switch K3-7, the other output end of the single-pole double-throw switch K3-7 is connected with one input end of a double-pole double-throw switch K2-4, the other input end of the double-pole double-throw switch K2-4 is connected with the input of a spectrum analyzer, two output ends of the double-pole double-throw switch K2-4 are respectively connected with a circulator 1, one input end of the double-pole double-throw switch K2-5 is connected with the circulator 1, the other input end and one output end of the double-pole double-throw switch K2-5 are respectively connected with two ends of an amplifier 1, the other output end of the double-pole double-throw switch K2-5 is connected with one output end of the double-pole single-throw switch K2-6, the other input end of the double-pole single-throw switch K2-6 is connected with one output end of the single-pole double-throw switch K2-7, the output end of the double-pole single-throw switch K2-6 is connected with the, the other output end of the single-pole double-throw switch K2-7 is connected with a load 1, the input end of the single-pole double-throw switch K2-7 is connected with one output end of a single-path input and double-path output combiner 8 with isolation, the input end of the combiner 8 is connected with a circulator 2, the second output end of the single-pole double-throw switch K3-9 is also connected with the circulator 2, the input end of the single-pole double-throw switch K2-8 is connected with the other output end of the combiner 8, one output end of the single-pole double-throw switch K2-8 is connected with the load 2, the other output end of the single-pole double-throw switch K2-8 is connected with a vector signal generator 2, one input end of the double-pole single-throw switch K2-9 is connected with a coupler 2, the other input end of the double-pole single-throw switch K2-9 is connected with a channel simulator input, the output end of the double-pole single-throw switch K2-9 is connected with a base station comprehensive tester, and the third output end of the single-pole single-throw switch K3-9 is connected with the output of the channel simulator.
The TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch switching device is characterized in that: the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-2; controlling the double-pole double-throw switch K2-3 to connect the double-pole double-throw switch K2-2 with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester so as to realize the measurement of the base station radio frequency consistency functions such as the output power, the dynamic range of the output power, the quality of transmission signals, the frequency error, the power of downlink reference signals and the like.
The TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch switching device is characterized in that: the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to enable the input end of the filter device to be connected with the double-pole double-throw switch K2-2 and the output end of the filter device to be connected with the single-pole double-throw switch K3-7; controlling the double-pole double-throw switch K2-4 to connect the single-pole double-throw switch K3-7 with the circulator 1; controlling the double-pole double-throw switch K2-5 to connect the circulator 1 with the double-pole single-throw switch K2-6 through the amplifier 1; the double-pole single-throw switch K2-6 is controlled to connect the double-pole double-throw switch K2-5 with the vector signal generator 1, and the single-pole double-throw switch K3-7 is controlled to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester to realize the test of the base station transmitting mutual modulation function.
The TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch switching device is characterized in that: base station antennas 2, 3, 4, 5, 6, 7 and 8 are connected with the combiners 1, 2, 3, 4, 5, 6, 7 by controlling a double-pole double-throw switch K3-1, a double-pole double-throw switch K3-2, a double-pole double-throw switch K3-3, a double-pole double-throw switch K3-4, a double-pole double-throw switch K3-5 and a double-pole double-throw switch K3-6; controlling the double-pole double-throw switch K2-1 to connect the base station antenna 1 with the single-pole triple-throw switch K3-9; the single-pole three-throw switch K3-9 is controlled, and the switch double-pole double-throw switch K2-2 is controlled at the same time, so that the input of the attenuator device is connected with the single-pole three-throw switch K3-9, and the output of the attenuator device is connected with the double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to connect the double-pole double-throw switch K2-2 with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester to realize the test of the time calibration function of the base station transmitter.
The TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch switching device is characterized in that: the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to enable the input end of the filter device to be connected with the double-pole double-throw switch K2-2 and the output end of the filter device to be connected with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester to realize the test of the stray radiation function of the base station transmitter.
The TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch switching device is characterized in that: the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9, controlling a double-pole double-throw switch K2-2 to enable a double-pole double-throw switch K2-3 to be connected with the single-pole three-throw switch K3-9, and controlling a double-pole double-throw switch K2-3 to enable a double-pole double-throw switch K2-2 to be connected with a single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester to realize the test of the base station reference sensitivity function.
The TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch switching device is characterized in that: the base station antenna 1 is connected with the single-pole three-throw switch K3-9 by controlling the double-pole double-throw switch K2-1 and controlling the single-pole three-throw switch K3-9; controlling a double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester; controlling the double-pole single-throw switch K2-6 to connect the vector signal generator 1 with the single-pole double-throw switch K2-7; controlling the single-pole double-throw switch K2-7 to connect the combiner 8 with the double-pole single-throw switch K2-6; the single-pole double-throw switch K2-8 is controlled to connect the vector signal generator 2 with the combiner 8, so as to realize the test of the functions of the dynamic range, the in-band selectivity, the adjacent channel selectivity, the narrow-band blocking and the blocking characteristic of the base station.
The TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch switching device is characterized in that: the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to connect the single-pole three-throw switch K3-9 with a double-pole double-throw switch K2-3; and controlling the double-pole double-throw switch K2-3 to connect the double-pole double-throw switch K2-2 spectrum analyzer so as to test the stray radiation function of the base station receiver.
The TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch switching device is characterized in that: controlling a double-pole single-throw switch K2-9 to connect the base station comprehensive tester with the input end of the channel simulator; controlling the single-pole three-throw switch K3-9 to connect the output end of the channel simulator with the double-pole two-throw switch K2-1; the base station performance and reporting function test method comprises the steps of controlling a double-pole double-throw switch K3-4 to enable a base station antenna 4 to be connected with a combiner 3, controlling a double-pole double-throw switch K3-3 to enable the base station antenna 3 to be connected with a combiner 2 through the combiner 3, controlling a double-pole double-throw switch K3-2 to enable a base station antenna 2 to be connected with a combiner 1 through the combiner 2, controlling a double-pole double-throw switch K2-1 to enable the base station antenna 1 to be connected with a single-pole three-throw switch K3-9 through the combiner 1, and configuring different channel environments through a control channel simulator to realize the test of the base station performance and the reporting function.
According to the invention, different switch connecting paths are controlled by software, multi-switch combination control switching is carried out according to the requirements of TD-LTE/LTE-Advanced base station radio frequency consistency test equipment and the requirements of different test examples of the base station, so that the rapid scheduling of a plurality of instruments of the TD-LTE/LTE-Advanced base station radio frequency consistency test system and the cooperative work of the instruments are met, and meanwhile, the radio frequency design index is ensured to meet the requirement of 3GPP related base station radio frequency consistency. In addition, the invention also provides a switch switching path for system calibration to meet the calibration of system channel gain and frequency response, and has higher accuracy.
Drawings
FIG. 1 is a schematic block diagram of the system of the present invention.
Fig. 2 is a schematic diagram of a switch path for measuring the radio frequency consistency function of a base station, such as the output power, the dynamic range of the output power, the quality of a transmission signal, a frequency error, the power of a downlink reference signal, and the like.
Fig. 3 is a schematic diagram of a switch path for measuring the intermodulation function of the transmission of the base station.
Fig. 4 is a schematic diagram of the switch path of the measurement base station transmitter time calibration function.
Fig. 5 is a schematic diagram of a switch path for measuring stray radiation of a base station transmitter.
Fig. 6 is a schematic diagram of the switch path of the reference sensitivity function of the measuring base station.
Fig. 7 is a schematic diagram of the functional switch path for measuring the dynamic range, in-band selectivity, adjacent channel selectivity, narrowband blocking and blocking characteristics of the base station.
Fig. 8 is a schematic diagram of a switch path for measuring stray radiation of a base station receiver.
Fig. 9 is a schematic diagram of a switch path for measuring the performance of the base station and reporting the performance.
Detailed Description
As shown in the figure, the switch switching device of the TD-LTE/LTE-Advanced base station radio frequency conformance test system comprises double-pole double-throw switches K2-1-K2-5, K3-1-K3-6, single-pole double-throw switches K2-7, K2-8, K3-7, double-pole single-throw switches K2-6, K2-9 and a single-pole triple-throw switch K3-9; wherein, one input end of the double-pole double-throw switch K2-1 is connected with a base station antenna 1, one input end of the double-pole double-throw switch K3-1 is connected with a base station antenna 2, one input end of the double-pole double-throw switch K3-2 is connected with a base station antenna 3, one input end of the double-pole double-throw switch K3-3 is connected with a base station antenna 4, one input end of the double-pole double-throw switch K3-4 is connected with a base station antenna 5, one input end of the double-pole double-throw switch K3-5 is connected with a base station antenna 6, one input end of the double-pole double-throw switch K3-6 is connected with a base station antenna 7, the other input end of the double-pole double-throw switch K2-1 is connected with one input end of a combiner 1 with isolation, the other input end of the double-pole double-throw switch K3-1 is connected with one, the other input end of the double-pole double-throw switch K3-2 is connected with one input end of a combiner 3 with isolation, the other input end of the double-pole double-throw switch K3-3 is connected with one input end of a combiner 4 with isolation, the other input end of the double-pole double-throw switch K3-4 is connected with one input end of a combiner 5 with isolation, the other input end of the double-pole double-throw switch K3-5 is connected with one input end of a combiner 6 with isolation, the other input end of the double-pole double-throw switch K3-6 is connected with one input end of a combiner 7 with isolation, the other input end of the combiner 7 is connected with a base station antenna 8, the output end of the combiner 7 is connected with one output end of the double-pole double-throw switch K3-6, the other output end of the double-pole double-throw switch K3-6 is connected with the other input end of the combiner 6, the output end of the combiner 6 is connected with one output end of a double-pole double-throw switch K3-5, the other output end of the double-pole double-throw switch K3-5 is connected with the other input end of the combiner 5, the output end of the combiner 5 is connected with one output end of a double-pole double-throw switch K3-4, the other output end of the double-pole double-throw switch K3-4 is connected with the other input end of the combiner 4, the output end of the combiner 4 is connected with one output end of a double-pole double-throw switch K3-3, the other output end of the double-pole double-throw switch K3-3 is connected with the other input end of the combiner 3, the output end of the combiner 3 is connected with one output end of a double-pole double-throw switch K3-2, the other output end of the double-pole double-throw switch K3-2 is connected with the other input end of the combiner 2, the output end of the combiner 2 is connected with one output, the other output end of the double-pole double-throw switch K3-1 is connected with the other input end of the combiner 1, the output end of the combiner 1 is connected with one output end of the double-pole double-throw switch K2-1, and the other output end of the double-pole double-throw switch K2-1 is connected with the input end of the single-pole three-throw switch K3-9;
one output end of the single-pole three-throw switch K3-9 is connected with one input end of a double-pole double-throw switch K2-2, the other input end of the double-pole double-throw switch K2-2 is connected with the input end of an attenuation device, one output end of the double-pole double-throw switch K2-2 is connected with the output end of the attenuation device, the other output end of the double-pole double-throw switch K2-2 is connected with one input end of a double-pole double-throw switch K2-3, the other input end of the double-pole double-throw switch K2-3 is connected with the input end of a filter device, one output end of the double-pole double-throw switch K2-3 is connected with the output end of the filter device, the other output end of the double-pole double-throw switch 387K 5-3 is connected with the input end of the single-pole double-throw switch K3-7, one output end of the single-pole double-throw switch K3-7, the other output end of the single-pole double-throw switch K3-7 is connected with one input end of a double-pole double-throw switch K2-4, the other input end of the double-pole double-throw switch K2-4 is connected with the input of a spectrum analyzer, two output ends of the double-pole double-throw switch K2-4 are respectively connected with a circulator 1, one input end of the double-pole double-throw switch K2-5 is connected with the circulator 1, the other input end and one output end of the double-pole double-throw switch K2-5 are respectively connected with two ends of an amplifier 1, the other output end of the double-pole double-throw switch K2-5 is connected with one output end of the double-pole single-throw switch K2-6, the other input end of the double-pole single-throw switch K2-6 is connected with one output end of the single-pole double-throw switch K2-7, the output end of the double-pole single-throw switch K2-6 is connected with the, the other output end of the single-pole double-throw switch K2-7 is connected with a load 1, the input end of the single-pole double-throw switch K2-7 is connected with one output end of a single-path input and double-path output combiner 8 with isolation, the input end of the combiner 8 is connected with a circulator 2, the second output end of the single-pole double-throw switch K3-9 is also connected with the circulator 2, the input end of the single-pole double-throw switch K2-8 is connected with the other output end of the combiner 8, one output end of the single-pole double-throw switch K2-8 is connected with the load 2, the other output end of the single-pole double-throw switch K2-8 is connected with the vector signal generator 2, one input end of the double-pole single-throw switch K2-9 is connected with the configurator 2, the other input end of the double-pole single-throw switch K2-9 is connected with the channel simulator input, the output end of the double-pole single-throw switch K2-9 is connected, the third output terminal of the single-pole three-throw switch K3-9 is connected with the output of the channel simulator.
As shown in fig. 2, the base station antenna 1 is connected to the single pole, triple throw switch K3-9 by controlling the double pole, double throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-2; controlling the double-pole double-throw switch K2-3 to connect the double-pole double-throw switch K2-2 with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester so as to realize the measurement of the base station radio frequency consistency functions such as the output power, the dynamic range of the output power, the quality of transmission signals, the frequency error, the power of downlink reference signals and the like.
As shown in fig. 3, the base station antenna 1 is connected to the single pole, triple throw switch K3-9 by controlling the double pole, double throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to enable the input end of the filter device to be connected with the double-pole double-throw switch K2-2 and the output end of the filter device to be connected with the single-pole double-throw switch K3-7; controlling the double-pole double-throw switch K2-4 to connect the single-pole double-throw switch K3-7 with the circulator 1; controlling the double-pole double-throw switch K2-5 to connect the circulator 1 with the double-pole single-throw switch K2-6 through the amplifier 1; the double-pole single-throw switch K2-6 is controlled to connect the double-pole double-throw switch K2-5 with the vector signal generator 1, and the single-pole double-throw switch K3-7 is controlled to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester to realize the test of the base station transmitting mutual modulation function.
As shown in fig. 4, the base station antennas 2, 3, 4, 5, 6, 7, 8 are connected to the combiners 1, 2, 3, 4, 5, 6, 7 by controlling the double pole double throw switch K3-1, the double pole double throw switch K3-2, the double pole double throw switch K3-3, the double pole double throw switch K3-4, the double pole double throw switch K3-5, and the double pole double throw switch K3-6; controlling the double-pole double-throw switch K2-1 to connect the base station antenna 1 with the single-pole triple-throw switch K3-9; the single-pole three-throw switch K3-9 is controlled, and the switch double-pole double-throw switch K2-2 is controlled at the same time, so that the input of the attenuator device is connected with the single-pole three-throw switch K3-9, and the output of the attenuator device is connected with the double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to connect the double-pole double-throw switch K2-2 with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester to realize the test of the time calibration function of the base station transmitter.
As shown in fig. 5, the base station antenna 1 is connected to the single pole, triple throw switch K3-9 by controlling the double pole, double throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to enable the input end of the filter device to be connected with the double-pole double-throw switch K2-2 and the output end of the filter device to be connected with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester to realize the test of the stray radiation function of the base station transmitter.
As shown in fig. 6, the base station antenna 1 is connected to the single pole, triple throw switch K3-9 by controlling the double pole, double throw switch K2-1; controlling a single-pole three-throw switch K3-9, controlling a double-pole double-throw switch K2-2 to enable a double-pole double-throw switch K2-3 to be connected with the single-pole three-throw switch K3-9, and controlling a double-pole double-throw switch K2-3 to enable a double-pole double-throw switch K2-2 to be connected with a single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; and controlling the double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester to realize the test of the base station reference sensitivity function.
As shown in fig. 7, the base station antenna 1 is connected to the single pole three throw switch K3-9 by controlling the double pole two throw switch K2-1 and the single pole three throw switch K3-9 is controlled; controlling a double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester; controlling the double-pole single-throw switch K2-6 to connect the vector signal generator 1 with the single-pole double-throw switch K2-7; controlling the single-pole double-throw switch K2-7 to connect the combiner 8 with the double-pole single-throw switch K2-6; the single-pole double-throw switch K2-8 is controlled to connect the vector signal generator 2 with the combiner 8, so as to realize the test of the functions of the dynamic range, the in-band selectivity, the adjacent channel selectivity, the narrow-band blocking and the blocking characteristic of the base station.
As shown in fig. 8, the base station antenna 1 is connected to the single pole three throw switch K3-9 by controlling the double pole two throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to connect the single-pole three-throw switch K3-9 with a double-pole double-throw switch K2-3; and controlling the double-pole double-throw switch K2-3 to connect the double-pole double-throw switch K2-2 spectrum analyzer so as to test the stray radiation function of the base station receiver.
As shown in fig. 9, the double-pole single-throw switch K2-9 is controlled to connect the base station integrated tester to the input terminal of the channel simulator; controlling the single-pole three-throw switch K3-9 to connect the output end of the channel simulator with the double-pole two-throw switch K2-1; the base station performance and reporting function test method comprises the steps of controlling a double-pole double-throw switch K3-4 to enable a base station antenna 4 to be connected with a combiner 3, controlling a double-pole double-throw switch K3-3 to enable the base station antenna 3 to be connected with a combiner 2 through the combiner 3, controlling a double-pole double-throw switch K3-2 to enable a base station antenna 2 to be connected with a combiner 1 through the combiner 2, controlling a double-pole double-throw switch K2-1 to enable the base station antenna 1 to be connected with a single-pole three-throw switch K3-9 through the combiner 1, and configuring different channel environments through a control channel simulator to realize the test of the base station performance and the reporting function.
Claims (1)
1. A TD-LTE/TD-LTE-Advanced base station radio frequency conformance test system switch auto-change over device which characterized in that: the system comprises double-pole double-throw switches K2-1-K2-5, K3-1-K3-6, single-pole double-throw switches K2-7, K2-8 and K3-7, double-pole single-throw switches K2-6 and K2-9, and a single-pole triple-throw switch K3-9; wherein, one input end of the double-pole double-throw switch K2-1 is connected with a base station antenna 1, one input end of the double-pole double-throw switch K3-1 is connected with a base station antenna 2, one input end of the double-pole double-throw switch K3-2 is connected with a base station antenna 3, one input end of the double-pole double-throw switch K3-3 is connected with a base station antenna 4, one input end of the double-pole double-throw switch K3-4 is connected with a base station antenna 5, one input end of the double-pole double-throw switch K3-5 is connected with a base station antenna 6, one input end of the double-pole double-throw switch K3-6 is connected with a base station antenna 7, the other input end of the double-pole double-throw switch K2-1 is connected with one input end of a combiner 1 with isolation, the other input end of the double-pole double-throw switch K3-1 is connected with one, the other input end of the double-pole double-throw switch K3-2 is connected with one input end of a combiner 3 with isolation, the other input end of the double-pole double-throw switch K3-3 is connected with one input end of a combiner 4 with isolation, the other input end of the double-pole double-throw switch K3-4 is connected with one input end of a combiner 5 with isolation, the other input end of the double-pole double-throw switch K3-5 is connected with one input end of a combiner 6 with isolation, the other input end of the double-pole double-throw switch K3-6 is connected with one input end of a combiner 7 with isolation, the other input end of the combiner 7 is connected with a base station antenna 8, the output end of the combiner 7 is connected with one output end of the double-pole double-throw switch K3-6, the other output end of the double-pole double-throw switch K3-6 is connected with the other input end of the combiner 6, the output end of the combiner 6 is connected with one output end of a double-pole double-throw switch K3-5, the other output end of the double-pole double-throw switch K3-5 is connected with the other input end of the combiner 5, the output end of the combiner 5 is connected with one output end of a double-pole double-throw switch K3-4, the other output end of the double-pole double-throw switch K3-4 is connected with the other input end of the combiner 4, the output end of the combiner 4 is connected with one output end of a double-pole double-throw switch K3-3, the other output end of the double-pole double-throw switch K3-3 is connected with the other input end of the combiner 3, the output end of the combiner 3 is connected with one output end of a double-pole double-throw switch K3-2, the other output end of the double-pole double-throw switch K3-2 is connected with the other input end of the combiner 2, the output end of the combiner 2 is connected with one output, the other output end of the double-pole double-throw switch K3-1 is connected with the other input end of the combiner 1, the output end of the combiner 1 is connected with one output end of the double-pole double-throw switch K2-1, and the other output end of the double-pole double-throw switch K2-1 is connected with the input end of the single-pole three-throw switch K3-9; one output end of the single-pole three-throw switch K3-9 is connected with one input end of a double-pole double-throw switch K2-2, the other input end of the double-pole double-throw switch K2-2 is connected with the input end of an attenuation device, one output end of the double-pole double-throw switch K2-2 is connected with the output end of the attenuation device, the other output end of the double-pole double-throw switch K2-2 is connected with one input end of a double-pole double-throw switch K2-3, the other input end of the double-pole double-throw switch K2-3 is connected with the input end of a filter device, one output end of the double-pole double-throw switch K2-3 is connected with the output end of the filter device, the other output end of the double-pole double-throw switch K2-3 is connected with the input end of the single-pole double-throw switch K3-7, one output end of the single-pole double-throw switch K3-7 is, the other output end of the single-pole double-throw switch K3-7 is connected with one input end of a double-pole double-throw switch K2-4, the other input end of the double-pole double-throw switch K2-4 is connected with the input of a spectrum analyzer, two output ends of the double-pole double-throw switch K2-4 are respectively connected with a circulator 1, one input end of the double-pole double-throw switch K2-5 is connected with the circulator 1, the other input end and one output end of the double-pole double-throw switch K2-5 are respectively connected with two ends of an amplifier 1, the other output end of the double-pole double-throw switch K2-5 is connected with one output end of the double-pole single-throw switch K2-6, the other input end of the double-pole single-throw switch K2-6 is connected with one output end of the single-pole double-throw switch K2-7, the output end of the double-pole single-throw switch K2-6 is connected with the, the other output end of the single-pole double-throw switch K2-7 is connected with a load 1, the input end of the single-pole double-throw switch K2-7 is connected with one output end of a single-path input and double-path output combiner 8 with isolation, the input end of the combiner 8 is connected with a circulator 2, the second output end of the single-pole double-throw switch K3-9 is also connected with the circulator 2, the input end of the single-pole double-throw switch K2-8 is connected with the other output end of the combiner 8, one output end of the single-pole double-throw switch K2-8 is connected with the load 2, the other output end of the single-pole double-throw switch K2-8 is connected with a vector signal generator 2, one input end of the double-pole single-throw switch K2-9 is connected with a coupler 2, the other input end of the double-pole single-throw switch K2-9 is connected with a channel simulator input, the output end of the double-pole single-throw switch K2-9 is connected with a base station comprehensive tester, and the third output end of the single-pole single-throw switch K3-9 is connected with the output of the channel simulator;
the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-2; controlling the double-pole double-throw switch K2-3 to connect the double-pole double-throw switch K2-2 with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; controlling a double-pole single-throw switch K2-9 to connect the circulator 2 with a base station comprehensive tester to realize the measurement of the base station output power, the dynamic range of the output power, the quality of transmission signals, the frequency error and the radio frequency consistency function of a downlink reference signal power base station;
the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to enable the input end of the filter device to be connected with the double-pole double-throw switch K2-2 and the output end of the filter device to be connected with the single-pole double-throw switch K3-7; controlling the double-pole double-throw switch K2-4 to connect the single-pole double-throw switch K3-7 with the circulator 1; controlling the double-pole double-throw switch K2-5 to connect the circulator 1 with the double-pole single-throw switch K2-6 through the amplifier 1; the double-pole double-throw switch K2-6 is controlled to connect the double-pole double-throw switch K2-5 with the vector signal generator 1, and the single-pole double-throw switch K3-7 is controlled to connect the double-pole double-throw switch K2-3 with the circulator 2; controlling a double-pole single-throw switch K2-9 to connect the circulator 2 with a base station comprehensive tester to test the transmitting and mutual-adjusting function of the base station;
base station antennas 2, 3, 4, 5, 6, 7 and 8 are connected with the combiners 1, 2, 3, 4, 5, 6, 7 by controlling a double-pole double-throw switch K3-1, a double-pole double-throw switch K3-2, a double-pole double-throw switch K3-3, a double-pole double-throw switch K3-4, a double-pole double-throw switch K3-5 and a double-pole double-throw switch K3-6; controlling the double-pole double-throw switch K2-1 to connect the base station antenna 1 with the single-pole triple-throw switch K3-9; the single-pole three-throw switch K3-9 is controlled, and the switch double-pole double-throw switch K2-2 is controlled at the same time, so that the input of the attenuator device is connected with the single-pole three-throw switch K3-9, and the output of the attenuator device is connected with the double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to connect the double-pole double-throw switch K2-2 with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; controlling a double-pole single-throw switch K2-9 to connect the circulator 2 with a base station comprehensive tester to realize the test of the time calibration function of the base station transmitter;
the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to enable the input of an attenuator device to be connected with the single-pole three-throw switch K3-9 and the output of the attenuator device to be connected with a double-pole double-throw switch K2-3; controlling the double-pole double-throw switch K2-3 to enable the input end of the filter device to be connected with the double-pole double-throw switch K2-2 and the output end of the filter device to be connected with the single-pole double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; controlling a double-pole single-throw switch K2-9 to connect the circulator 2 with a base station comprehensive tester to test the stray radiation function of a base station transmitter;
the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole-double-throw switch K3-9, controlling a double-pole-double-throw switch K2-2 to enable a double-pole-double-throw switch K2-3 to be connected with the single-pole-double-throw switch K3-9, and controlling a double-pole-double-throw switch K2-3 to enable a double-pole-double-throw switch K2-2 to be connected with a single-pole-double-throw switch K3-7; controlling the single-pole double-throw switch K3-7 to connect the double-pole double-throw switch K2-3 with the circulator 2; controlling a double-pole single-throw switch K2-9 to connect the circulator 2 with a base station comprehensive tester to test the base station reference sensitivity function;
the base station antenna 1 is connected with the single-pole three-throw switch K3-9 by controlling the double-pole double-throw switch K2-1 and controlling the single-pole three-throw switch K3-9; controlling a double-pole single-throw switch K2-9 to connect the circulator 2 with the base station comprehensive tester; controlling the double-pole single-throw switch K2-6 to connect the vector signal generator 1 with the single-pole double-throw switch K2-7; controlling the single-pole double-throw switch K2-7 to connect the combiner 8 with the double-pole single-throw switch K2-6; controlling a single-pole double-throw switch K2-8 to connect the vector signal generator 2 with the combiner 8 so as to realize the test of the functions of the dynamic range, the in-band selectivity, the adjacent channel selectivity, the narrow-band blocking and the blocking characteristics of the base station;
the base station antenna 1 is connected with a single-pole three-throw switch K3-9 by controlling a double-pole two-throw switch K2-1; controlling a single-pole three-throw switch K3-9 and simultaneously controlling a double-pole double-throw switch K2-2 to connect the single-pole three-throw switch K3-9 with a double-pole double-throw switch K2-3; controlling a double-pole double-throw switch K2-3 to connect a double-pole double-throw switch K2-2 spectrum analyzer so as to test the stray radiation function of the base station receiver;
controlling a double-pole single-throw switch K2-9 to connect the base station comprehensive tester with the input end of the channel simulator; controlling the single-pole three-throw switch K3-9 to connect the output end of the channel simulator with the double-pole two-throw switch K2-1; the base station performance and reporting function test method comprises the steps of controlling a double-pole double-throw switch K3-4 to enable a base station antenna 4 to be connected with a combiner 3, controlling a double-pole double-throw switch K3-3 to enable the base station antenna 3 to be connected with a combiner 2 through the combiner 3, controlling a double-pole double-throw switch K3-2 to enable a base station antenna 2 to be connected with a combiner 1 through the combiner 2, controlling a double-pole double-throw switch K2-1 to enable the base station antenna 1 to be connected with a single-pole three-throw switch K3-9 through the combiner 1, and configuring different channel environments through a control channel simulator to realize the test of the base station performance and the reporting function.
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| CN101777955A (en) * | 2009-01-14 | 2010-07-14 | 鼎桥通信技术有限公司 | Radio frequency time template parameter test system and method for adjusting test range |
| US9642028B2 (en) * | 2012-01-27 | 2017-05-02 | Nokia Technologies Oy | Testing of location information signaling related to minimization of drive tests and conformance tests |
| CN103532646B (en) * | 2013-10-12 | 2017-02-22 | 工业和信息化部电信传输研究所 | Testing method for base-station radio-frequency testing system applicable to LTE (Long Term Evolution) system |
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