CN114143243A - Radio frequency test method and system - Google Patents
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Abstract
The invention relates to the technical field of mobile communication, in particular to a radio frequency test method and a radio frequency test system, wherein the method comprises the following steps: acquiring configuration parameters and a test case, wherein the test case comprises frequency domain data and time domain data which correspond to each other; the MAC layer transmits the frequency domain data and the configuration parameters to the physical layer; the physical layer establishes a cell according to the configuration parameters, and after the MAC layer completes the transparent transmission of the frequency domain data, the physical layer performs physical layer processing and data conversion according to the frequency domain data to generate test data and transmits the test data to the RRU; and calling the function test condition, and analyzing the test data received by the RRU according to the function test condition to generate a test result. By adopting the scheme, the number of modules participating in the RRU testing stage can be reduced, the testing complexity is reduced, and the testing is flexible.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a radio frequency test method and a radio frequency test system.
Background
Under the drive of the wide-band and diversified development of wireless services, mobile communication networks have undergone the development process from 2G to 5G, and the capacity and performance of the networks are continuously improved. The base station is used as core equipment of a wireless side and mainly comprises a BBU (base band unit) and a RRU (remote radio unit), wherein the BBU is a baseband processing unit and provides functions of baseband protocol processing, base station system management and the like; the RRU is a radio remote unit and is responsible for receiving and transmitting radio frequency signals. Due to the diversified development of the use scene, the RRU is developed from a narrowband single-density and double-density system of the early GSM to a broadband system, the number of radio frequency channels is also developed from 1T1R to 64T64R, and the RRU evolves toward Massive MIMO (large-scale antenna technology).
In a development stage of the RRU, a performance test needs to be performed on the developed RRU, a terminal needs to be accessed and a real service needs to meet a test requirement in a test stage, and as the RRUs have more and more functions and types, RRU testing is complex and variable, more modules need to participate, and flexibility is low, so that a radio frequency testing system and a radio frequency testing method which can reduce module participation, reduce testing complexity and realize flexibility in testing are urgently needed.
Disclosure of Invention
One of the objectives of the present invention is to provide a radio frequency testing method, which can reduce the number of modules involved in the RRU testing stage, reduce the testing complexity, and achieve flexible testing.
The invention provides a basic scheme I: a radio frequency testing method, comprising:
acquiring configuration parameters and a test case, wherein the test case comprises frequency domain data and time domain data which correspond to each other;
the MAC layer transmits the frequency domain data and the configuration parameters to the physical layer;
the physical layer establishes a cell according to the configuration parameters, and after the MAC layer completes the transparent transmission of the frequency domain data, the physical layer performs physical layer processing and data conversion according to the frequency domain data to generate test data and transmits the test data to the RRU;
and calling the function test condition, and analyzing the test data received by the RRU according to the function test condition to generate a test result.
The beneficial effects of the first basic scheme are as follows: the configuration parameters are used for establishing the cell and configuring the physical layer for processing, and different configurations can be carried out on the cell and the physical layer through the flexible setting of the configuration parameters, so that the requirements of different test scenes are met. The test case is used for RRU test, the test case comprises frequency domain data and time domain data, and data transmission and data comparison are carried out according to the data with different selected corresponding formats.
The MAC layer only executes the transparent transmission of the configuration parameters and the frequency domain data, and does not need to execute a complex scheduling function, so that the workload of the MAC layer is reduced, and the test complexity is further reduced.
And calling functional test conditions, wherein the functional test conditions corresponding to different performance tests are different, analyzing the test data received by the RRU according to the functional test conditions to generate a test result, and performing test evaluation on the RRU according to the test result.
Compared with the prior art, the scheme is adopted, terminal access and real services are not needed, modules participating in the RRU testing stage are effectively reduced, testing complexity is reduced, and testing is flexible.
Further, the following contents are included:
acquiring a physical layer configuration parameter;
and the algorithm simulator simulates physical layer processing according to the physical layer configuration parameters to generate a test case.
Has the advantages that: different test cases are generated through flexible setting of physical layer configuration parameters, and the requirements of different test scenes are met. The algorithm simulator is separated from the MAC layer and the physical layer of the test, the test case is generated before the test, and the test case is generated in advance, so that the online test time is not occupied, and the test efficiency is effectively improved.
Further, when the MAC layer completes the transparent transmission of the frequency domain data, a radio frequency test mark is generated and sent to the physical layer.
Has the advantages that: the radio frequency test mark is used for representing the completion of the transparent transmission of the frequency domain data, and the transparent transmission condition of the frequency domain data is obtained through the radio frequency test mark.
Further, the following contents are included:
after receiving the configuration parameters, the MAC layer acquires the last cell state and MAC processing logic;
judging whether a cell exists according to the cell state, and if not, calling a preset cell establishing flow; if so, analyzing whether the configuration parameters change or not according to the MAC processing logic, and if so, calling a preset cell reconfiguration flow;
the physical layer establishes a cell according to the configuration parameters, and specifically includes the following contents:
and the physical layer simulates and establishes the cell according to the configuration parameters and the cell establishing flow or the cell reconfiguring flow called by the MAC layer.
Has the advantages that: judging whether a cell is established according to the current cell condition, if the cell is not established currently, calling and executing a cell establishing process, if the cell is established, further judging whether the configuration parameters of the established cell are consistent, when the configuration parameters are changed, needing to establish the cell again, namely calling and executing a cell reconfiguration process, otherwise, using the established cell. By simulating the establishment of the cell instead of the real cell, the complex cell establishment process at the network management side is effectively avoided, and the test efficiency is improved.
Further, the following contents are included:
and after the MAC layer finishes the transparent transmission of the frequency domain data, the physical layer executes a preset radio frequency test flow and shields other normal processing flows.
Has the advantages that: the normal processing flow is relatively complex, and the RRU test uses the processed frequency domain data without complex symbol-level processing, so that the scheme executes a preset radio frequency test flow and shields other normal processing flows, thereby reducing the complexity of physical layer processing and further reducing the test complexity.
Further, the physical layer performs physical layer processing according to the frequency domain data, which specifically includes the following contents:
and copying the frequency domain data, and generating test data according to the frequency domain data at the corresponding moment.
Has the advantages that: the data quantity contained in the frequency domain data is less, so that the data transmission time is reduced, and the timeliness of the test system is improved. And repeatedly calling the frequency domain data through physical layer processing to generate final test data, thereby ensuring the integrity of the test data.
The present invention also provides a radio frequency testing system.
The invention provides a second basic scheme: a radio frequency testing method, comprising:
the BBU unit is used for acquiring configuration parameters and test cases, and the test cases comprise frequency domain data and time domain data which correspond to each other; the system is also used for establishing a cell according to the configuration parameters, performing physical layer processing and data conversion according to the frequency domain data to generate test data, and transmitting the test data;
and the RRU is used for calling the functional test conditions and analyzing the received test data according to the functional test conditions to generate a test result.
The second basic scheme has the beneficial effects that: the configuration parameters are used for establishing the cell and configuring the BBU unit, and different configurations can be carried out on the cell and the BBU unit through flexible setting of the configuration parameters, so that the requirements of different test scenes are met. The test case is used for RRU test, the test case comprises frequency domain data and time domain data, and data transmission and data comparison are carried out according to the data with different selected corresponding formats.
And setting the BBU, establishing a cell according to the configuration parameters, and performing physical layer processing and data conversion according to the frequency domain data by establishing a cell simulation test condition to generate test data for performing performance test on the RRU.
The RRU is a module to be tested, functional test conditions are called through the setting of the RRU, the functional test conditions corresponding to different performance tests are different, test data received by the RRU is analyzed according to the functional test conditions to generate a test result, and the RRU is tested and evaluated through the test result.
Compared with the prior art, the scheme is adopted, terminal access and real services are not needed, modules participating in the RRU testing stage are effectively reduced, testing complexity is reduced, and testing is flexible.
Further, still include:
and the algorithm simulator is used for acquiring the configuration parameters of the physical layer, simulating the physical layer processing according to the configuration parameters of the physical layer and generating the test case.
Has the advantages that: the algorithm simulator simulates physical layer processing through physical layer configuration parameters so as to generate test cases, and different test cases are generated through flexible setting of the physical layer configuration parameters so as to meet the requirements of different test scenes. The test case generation and the RRU test are separated, the test case is generated in advance, the online test time is not occupied, and the test efficiency is effectively improved.
Further, a BBU unit comprising:
the MAC layer is used for acquiring the last cell state and MAC processing logic after receiving the configuration parameters, judging whether a cell exists according to the cell state, and calling a preset cell establishing flow if the cell does not exist; if so, analyzing whether the configuration parameters change or not according to the MAC processing logic, and if so, calling a preset cell reconfiguration flow;
and the physical layer is used for simulating and establishing the cell according to the configuration parameters and the cell establishing flow or the cell reconfiguring flow called by the MAC layer.
Has the advantages that: before the MAC layer establishes the cell, whether the cell is established or not is judged based on the last cell state and the MAC processing logic, and whether the configuration parameters of the established cell are consistent with the current configuration parameters or not is judged. When the cell is not established, calling and executing a cell establishing process; when the cell is established and the configuration parameters of the established cell change, calling and executing a cell reconfiguration process; otherwise, the established cell is used. By simulating the establishment of the cell instead of the real cell, the complex cell establishment process at the network management side is effectively avoided, and the test efficiency is improved.
Further, the MAC layer is also used for transmitting the frequency domain data to the physical layer;
the physical layer is also used for executing a preset radio frequency test flow and shielding other normal processing flows after the MAC layer finishes the transparent transmission of the frequency domain data.
Has the advantages that: the normal processing flow of the physical layer to the data relates to complex symbol-level processing, and the scheme uses the processed frequency domain data without carrying out corresponding data processing, so that the scheme executes a preset radio frequency test flow and shields other normal processing flows, thereby reducing the complexity of the physical layer processing and further reducing the test complexity.
Drawings
Fig. 1 is a logic block diagram of an embodiment of a radio frequency test system according to the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
examples
A radio frequency testing method, comprising:
a test case generating step: and acquiring physical layer configuration parameters, and simulating physical layer processing by the algorithm simulator according to the physical layer configuration parameters to generate a test case, wherein the test case comprises frequency domain data and time domain data which correspond to each other.
The algorithm simulator is an application program written in a programming language according to the 3GPP protocol and capable of running on a PC. The physical layer configuration parameters are parameters required to be configured for physical layer processing, such as cell bandwidth, antenna, sampling rate, and the like. The physical layer configuration parameters configure the physical layer processing in an interface form or a configuration file form. And processing the randomly generated test cases according to the configured simulation layer, configuring the test cases once to generate one test case, and randomly generating different test cases by using the same physical layer configuration parameter.
The RRU test comprises a test agent, a BBU unit and an RRU unit, wherein the BBU unit comprises a network manager, an MAC layer and a physical layer.
The test agent obtains configuration parameters and test cases, wherein the configuration parameters comprise cell establishing parameters and physical layer configuration parameters, the cell establishing parameters are used for simulating and establishing a cell, and the physical layer configuration parameters are used for configuring a physical layer and are the same as the physical layer configuration parameters used by the algorithm simulator. The test case obtained by the test agent is frequency domain data in the test case.
The network manager is used for controlling the establishment of the cell and the distribution of the configuration parameters and the frequency domain data.
The MAC layer receives the frequency domain data and the configuration parameters, and after receiving the configuration parameters, the last cell state and MAC processing logic are obtained; judging whether a cell exists according to the cell state, and if not, calling a preset cell establishing flow; if so, analyzing whether the configuration parameters change or not according to the MAC processing logic, and if so, calling a preset cell reconfiguration flow. The last cell state representation shows whether the established cell exists or not, and the MAC processing logic analysis can obtain the configuration parameters of the cell. The preset cell establishing process is a cell establishing process, and the preset cell reconfiguring process is a process of deleting the established cell and reestablishing the cell.
And analyzing whether the configuration parameters change or not according to the MAC processing logic, specifically, analyzing the MAC processing logic to generate logic configuration parameters, comparing the logic configuration parameters with the cell establishment parameters, judging that the configuration parameters do not change when the logic configuration parameters and the cell establishment parameters are consistent, and otherwise, judging that the configuration parameters change.
And the MAC layer transparently transmits the frequency domain data and the configuration parameters to the physical layer, and generates a radio frequency test mark to issue to the physical layer when the transparent transmission of the frequency domain data is completed.
And the physical layer establishes a cell according to the configuration parameters, and after the MAC layer completes the transparent transmission of the frequency domain data, the physical layer performs physical layer processing and data conversion according to the frequency domain data to generate test data and transmits the test data to the RRU.
The physical layer establishes a cell according to the configuration parameters, specifically: and the physical layer simulates and establishes the cell according to the cell establishing parameter in the configuration parameters and the cell establishing flow or the cell reconfiguring flow called by the MAC layer.
And after the MAC layer finishes the transparent transmission of the frequency domain data, namely after the physical layer receives the radio frequency test mark, the physical layer executes a preset radio frequency test flow and shields other normal processing flows. The other normal processing flows are all the flows executed by the BBU unit in the communication process.
The physical layer is configured according to the physical layer configuration parameters in the configuration parameters, and the physical layer performs physical layer processing and data conversion according to the frequency domain data to generate test data, specifically: copying the frequency domain data, generating test data according to the frequency domain data at the corresponding moment, and performing frequency-time domain conversion on the generated test data, namely, the data format of the test data finally generated by the physical layer is a time domain.
Copying the frequency domain data, and generating test data according to the frequency domain data at the corresponding moment, wherein the test data specifically comprises the following contents: the test data comprises a number of frames, each frame comprising 10 subframes, each subframe comprising 2 slots, each slot comprising 14 symbols, each symbol comprising 1 antenna. In this embodiment, the data length of the frequency domain data is one frame, the frequency domain data at the corresponding time is copied, the data of 1 antenna of the frequency domain data is copied to all the antennas of the test data, and the test data is generated, where the data format of the test data is a frequency domain.
In other embodiments, the method is further configured to compare the test data finally generated by the physical layer with the time domain data in the test case, and determine correctness of frequency-time domain conversion and data transmission in the verification test process according to a comparison result.
And calling the function test condition, and analyzing the test data received by the RRU according to the function test condition to generate a test result. The method specifically comprises the following steps: the functional test conditions correspond to RRU test performance, which includes functional tests such as bandwidth, power, demodulation, EVM index, and the like.
Taking the bandwidth as an example, calling a function test condition corresponding to the bandwidth, analyzing a power value of the test data, and determining whether the power value meets the called function test condition, for example, if the called function test condition is a power range of performance requirements, determining whether the power value is within the power range, if so, meeting the called function test condition, and generating a test result with qualified power, otherwise, not meeting the called function test condition, and generating a test result with unqualified power.
A radio frequency test system using the above radio frequency test method is shown in fig. 1, and includes an algorithm simulator, a BBU unit, an RRU unit, and a test agent.
The algorithm simulator is used for acquiring the configuration parameters of the physical layer, simulating the physical layer processing according to the configuration parameters of the physical layer and generating a test case, wherein the test case comprises frequency domain data and time domain data which correspond to each other.
The physical layer configuration parameters configure the physical layer processing in an interface form or a configuration file form. And processing the randomly generated test cases according to the configured simulation layer, configuring the test cases once to generate one test case, and randomly generating different test cases by using the same physical layer configuration parameter.
The test agent is used for acquiring the configuration parameters and the test cases, and transmitting the configuration parameters and the test cases to the BBU unit, wherein the acquired test cases are frequency domain data. The configuration parameters comprise cell establishing parameters and physical layer configuration parameters, the cell establishing parameters are used for simulating cell establishment, and the physical layer configuration parameters are used for configuring a physical layer and are the same as the physical layer configuration parameters used by the algorithm simulator.
The BBU unit is used for acquiring configuration parameters and test cases, and is also used for establishing cells according to the configuration parameters, performing physical layer processing and data conversion according to the frequency domain data to generate test data, and transmitting the test data.
The BBU unit comprises a network manager, an MAC layer and a physical layer.
The network manager is used for acquiring the configuration parameters and the frequency domain data, controlling the establishment of the cell, and issuing the configuration parameters and the frequency domain data.
The MAC layer is used for receiving the configuration parameters and the frequency domain data and transmitting the configuration parameters and the frequency domain data to the physical layer; the system is also used for acquiring the last cell state and MAC processing logic after receiving the configuration parameters, judging whether a cell exists according to the cell state, and calling a preset cell establishing flow if the cell does not exist; if so, analyzing whether the configuration parameters change or not according to the MAC processing logic, and if so, calling a preset cell reconfiguration flow.
The last cell state representation shows whether the established cell exists or not, and the MAC processing logic analysis can obtain the configuration parameters of the cell. The preset cell establishing process is a cell establishing process, and the preset cell reconfiguring process is a process of deleting the established cell and reestablishing the cell. And analyzing whether the configuration parameters change or not according to the MAC processing logic, specifically, analyzing the MAC processing logic to generate logic configuration parameters, comparing the logic configuration parameters with the cell establishment parameters, judging that the configuration parameters do not change when the logic configuration parameters and the cell establishment parameters are consistent, and otherwise, judging that the configuration parameters change.
The MAC layer is also used for generating a radio frequency test mark and issuing the radio frequency test mark to the physical layer when the transparent transmission of the frequency domain data is completed.
The physical layer is used for simulating and establishing the cell according to the configuration parameters and the cell establishment flow or the cell reconfiguration flow called by the MAC layer, and specifically, simulating and establishing the cell according to the cell establishment parameters.
The physical layer is further configured to execute a preset radio frequency test flow and shield the rest of normal processing flows after the MAC layer completes transparent transmission of the frequency domain data, that is, after receiving the radio frequency test flag, where the rest of normal processing flows are all flows executed by the BBU unit in the communication process.
The physical layer is also used for configuring according to the physical layer configuration parameters, and performing physical layer processing and data conversion according to the frequency domain data to generate test data. The method specifically comprises the following steps: copying the frequency domain data, generating test data according to the frequency domain data at the corresponding moment, and performing frequency-time domain conversion on the generated test data, namely, the data format of the test data finally generated by the physical layer is a time domain. Copying the frequency domain data, and generating test data according to the frequency domain data at the corresponding moment, wherein the test data specifically comprises the following contents: the test data comprises a number of frames, each frame comprising 10 subframes, each subframe comprising 2 slots, each slot comprising 14 symbols, each symbol comprising 1 antenna. In this embodiment, the data length of the frequency domain data is one frame, the frequency domain data at the corresponding time is copied, the data of 1 antenna of the frequency domain data is copied to all the antennas of the test data, and the test data is generated, where the data format of the test data is a frequency domain.
The physical layer is also used for transmitting the test data after data conversion to the RRU unit.
And the RRU unit is used for calling the functional test conditions and analyzing the received test data according to the functional test conditions to generate a test result. The functional test conditions correspond to RRU test performance, the RRU test performance comprises bandwidth, and test data are analyzed according to the functional test conditions to generate test results.
In other embodiments, the test data finally generated by the physical layer is compared with the time domain data in the test case, and the correctness of the frequency-time domain conversion and the data transmission in the test process is judged and verified according to the comparison result.
Taking the bandwidth as an example, calling a function test condition corresponding to the bandwidth, analyzing a power value of the test data, and determining whether the power value meets the called function test condition, for example, if the called function test condition is a power range of performance requirements, determining whether the power value is within the power range, if so, meeting the called function test condition, and generating a test result with qualified power, otherwise, not meeting the called function test condition, and generating a test result with unqualified power.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A radio frequency test method, comprising:
acquiring configuration parameters and a test case, wherein the test case comprises frequency domain data and time domain data which correspond to each other;
the MAC layer transmits the frequency domain data and the configuration parameters to the physical layer;
the physical layer establishes a cell according to the configuration parameters, and after the MAC layer completes the transparent transmission of the frequency domain data, the physical layer performs physical layer processing and data conversion according to the frequency domain data to generate test data and transmits the test data to the RRU;
and calling the function test condition, and analyzing the test data received by the RRU according to the function test condition to generate a test result.
2. The radio frequency test method of claim 1, further comprising:
acquiring a physical layer configuration parameter;
and the algorithm simulator simulates physical layer processing according to the physical layer configuration parameters to generate a test case.
3. A radio frequency test method according to claim 1, characterized in that: and when the MAC layer finishes the transparent transmission of the frequency domain data, generating a radio frequency test mark and issuing the radio frequency test mark to the physical layer.
4. A radio frequency test method according to claim 1, characterized in that: the method also comprises the following steps:
after receiving the configuration parameters, the MAC layer acquires the last cell state and MAC processing logic;
judging whether a cell exists according to the cell state, and if not, calling a preset cell establishing flow; if so, analyzing whether the configuration parameters change or not according to the MAC processing logic, and if so, calling a preset cell reconfiguration flow;
the physical layer establishes a cell according to the configuration parameters, and specifically includes the following contents:
and the physical layer simulates and establishes the cell according to the configuration parameters and the cell establishing flow or the cell reconfiguring flow called by the MAC layer.
5. The radio frequency test method of claim 1, further comprising:
and after the MAC layer finishes the transparent transmission of the frequency domain data, the physical layer executes a preset radio frequency test flow and shields other normal processing flows.
6. A radio frequency test method according to claim 1, characterized in that: the physical layer performs physical layer processing according to the frequency domain data, and specifically includes the following contents:
and copying the frequency domain data, and generating test data according to the frequency domain data at the corresponding moment.
7. A radio frequency test system, comprising:
the BBU unit is used for acquiring configuration parameters and test cases, and the test cases comprise frequency domain data and time domain data which correspond to each other; the system is also used for establishing a cell according to the configuration parameters, performing physical layer processing and data conversion according to the frequency domain data to generate test data, and transmitting the test data;
and the RRU is used for calling the functional test conditions and analyzing the received test data according to the functional test conditions to generate a test result.
8. The radio frequency test system of claim 7, further comprising:
and the algorithm simulator is used for acquiring the configuration parameters of the physical layer, simulating the physical layer processing according to the configuration parameters of the physical layer and generating the test case.
9. A radio frequency test system according to claim 7, wherein: a BBU unit comprising:
the MAC layer is used for acquiring the last cell state and MAC processing logic after receiving the configuration parameters, judging whether a cell exists according to the cell state, and calling a preset cell establishing flow if the cell does not exist; if so, analyzing whether the configuration parameters change or not according to the MAC processing logic, and if so, calling a preset cell reconfiguration flow;
and the physical layer is used for simulating and establishing the cell according to the configuration parameters and the cell establishing flow or the cell reconfiguring flow called by the MAC layer.
10. A radio frequency test system according to claim 8, wherein: the MAC layer is also used for transmitting the frequency domain data to the physical layer;
the physical layer is also used for executing a preset radio frequency test flow and shielding other normal processing flows after the MAC layer finishes the transparent transmission of the frequency domain data.
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| CN116599537A (en) * | 2023-05-18 | 2023-08-15 | 哈尔滨市科佳通用机电股份有限公司 | Unit test method of railway frequency shift signal decoding algorithm |
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| CN114143243B (en) | 2023-12-22 |
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