CN113890606A - Open wireless access network communication equipment test system and method - Google Patents
Open wireless access network communication equipment test system and method Download PDFInfo
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- CN113890606A CN113890606A CN202111199474.XA CN202111199474A CN113890606A CN 113890606 A CN113890606 A CN 113890606A CN 202111199474 A CN202111199474 A CN 202111199474A CN 113890606 A CN113890606 A CN 113890606A
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Abstract
The present disclosure relates to a system and a method for testing open wireless access network communication equipment, wherein the system comprises: the system comprises a distributed unit DU simulator, a radio frequency test instrument and test equipment, wherein a wireless unit RU of the open wireless access network O-RAN communication equipment is respectively connected with the test equipment, the DU simulator and the radio frequency test instrument when a test system is used for testing; the test equipment is used for controlling the DU simulator to configure cell parameters; controlling a DU simulator to send a first configuration message of the cell parameters to an RU, wherein the first configuration message indicates the RU to configure the cell parameters; controlling a DU simulator to send a downlink data packet to an RU, reading a first test parameter value of a radio frequency test instrument, controlling the radio frequency test instrument to send an uplink data packet to the RU, and reading a second test parameter value of the DU simulator, wherein the first test parameter value and the second test parameter value are related to a radio frequency index of the RU; a corresponding test result is determined based on the first test parameter value or the second test parameter value.
Description
Technical Field
The embodiment of the disclosure relates to the technical field of communication equipment testing, in particular to a testing system and a testing method for communication equipment of an open wireless access network.
Background
Currently, an Open Radio Access Network (O-RAN) architecture is applied to a 5G base station. The O-RAN architecture is expected to make the 5G network more flexible while promoting innovation. The O-RAN architecture divides Radio Access Network (RAN) devices, such as 5G base stations, into radio units ru (radio unit), distributed units du (distributed unit), and centralized units cu (centralized unit). Among them, the DU is mainly responsible for the MAC layer function and part of the physical layer function that handle the real-time requirement, and the RU is mainly responsible for converting the digital signal from the DU into the radio frequency signal and transmitting it to the antenna, and converting the radio frequency signal from the antenna into the digital signal and transmitting it to the DU.
In the related art, when testing an O-RAN communication device, protocol testing between a DU and an RU, hardware testing of the RU such as radio frequency index testing, and stability and robustness testing of the RU are generally included, and the stability and robustness testing generally combines the O-RAN protocol testing and the hardware testing.
In the existing testing scheme in the industry, the hardware test, such as the radio frequency index test, is manually executed, so that the testing labor cost is high, and the testing efficiency is low.
Disclosure of Invention
In order to solve the technical problem or at least partially solve the technical problem, embodiments of the present disclosure provide an open radio access network communication device testing system and an open radio access network communication device testing method.
In a first aspect, an embodiment of the present disclosure provides an open radio access network communication device test system, including: the device comprises a distributed unit DU simulator, a radio frequency test instrument and test equipment, wherein the DU simulator and the radio frequency test instrument are respectively connected with the test equipment;
when the test system is used for testing, a wireless unit RU of the O-RAN communication equipment of the open wireless access network is respectively connected with the test equipment, the DU simulator and the radio frequency test instrument;
the test equipment is used for:
controlling the DU simulator to configure cell parameters;
control the DU emulator to send a first configuration message of cell parameters to the RU, the first configuration message indicating that the RU configures the cell parameters;
controlling the DU simulator to send downlink data packets to the RU, reading a first test parameter value of the radio frequency test instrument, controlling the radio frequency test instrument to send uplink data packets to the RU, and reading a second test parameter value of the DU simulator, wherein the first test parameter value and the second test parameter value are radio frequency indexes of the RU;
determining a corresponding test result based on the first test parameter value or the second test parameter value.
Optionally, in some embodiments of the present disclosure, the test apparatus is further configured to:
control the DU emulator to send a second configuration message of O-RAN protocol parameters to the RU, the second configuration message indicating that the RU configures the O-RAN protocol parameters;
controlling the DU simulator to send a query message of the O-RAN protocol parameters to the RU, and receiving a query result returned by the RU in response to the query message, wherein the query result comprises the O-RAN protocol parameters configured by the RU based on the second configuration message;
and determining a protocol test result based on the configured O-RAN protocol parameters and pre-stored O-RAN protocol parameters.
Optionally, in some embodiments of the present disclosure, the test system further includes a switch matrix, the radio frequency test instrument is connected to the plurality of antenna ports of the RU through the switch matrix, and the switch matrix is connected to the test equipment;
and a power attenuator is connected between the switch matrix and the RU, and the power attenuation of the power attenuator is greater than a preset power threshold.
Optionally, in some embodiments of the present disclosure, the test system further includes a test fixture, through which the DU simulator is connected to the RU, and the test fixture is configured to open or close a communication channel between the RU and the DU under the control of the test equipment; the test fixture is also used to power or power down the RU and/or the DU under control of the test equipment.
Optionally, in some embodiments of the present disclosure, the test fixture includes:
the device comprises a shell, a power port, a first optical port and a second optical port are arranged on the shell, the first optical port is used for being connected with the RU through an optical fiber, the second optical port is used for being connected with the DU through an optical fiber, the optical fiber is connected between the first optical port and the second optical port, and the power port is used for being connected with the RU and/or the DU;
the first switch is positioned in the shell and connected between the first light port and the second light port;
the second switch is positioned inside the shell and connected with the power supply port;
and the controller is connected with the test equipment, is respectively connected with the first switch and the second switch, and is used for controlling the open-close state of the first switch so as to open or close the optical communication channel between the RU and the DU, and controlling the open-close state of the second switch so as to control the power supply on-off of the RU and/or the DU.
Optionally, in some embodiments of the present disclosure, the test apparatus includes:
the data judgment unit is used for judging whether the first test parameter value is in a first test parameter target range or judging whether the second test parameter value is in a second test parameter target range;
and the result determining unit is used for determining that the test result is correct when the judgment result of the data judging unit is yes.
Optionally, in some embodiments of the present disclosure, the first test parameter value includes any one or more of an adjacent channel leakage ratio, an error vector magnitude, and a power of the RU, and the second test parameter value includes an uplink bit error rate.
In a second aspect, an embodiment of the present disclosure provides a method for testing open radio access network communication equipment, which is applied to a test system, where the test system includes a distributed unit DU simulator, a radio frequency test instrument, and test equipment, where the DU simulator and the radio frequency test instrument are respectively connected to the test equipment; when the test system is used for testing, a wireless unit RU of the O-RAN communication equipment of the open wireless access network is respectively connected with the test equipment, the DU simulator and the radio frequency test instrument; the method comprises the following steps:
controlling the DU simulator to configure cell parameters;
control the DU emulator to send a first configuration message of cell parameters to the RU, the first configuration message indicating that the RU configures the cell parameters;
controlling the DU simulator to send a downlink data packet to the RU, and reading a first test parameter value of the radio frequency test instrument; or, controlling the radio frequency test instrument to send an uplink data packet to the RU, and reading a second test parameter value of the DU simulator; the first test parameter value and the second test parameter value are radio frequency metrics of the RU;
determining a corresponding test result based on the first test parameter value or the second test parameter value.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
in the test method and system provided by the embodiment of the present disclosure, a test device controls a DU simulator to configure cell parameters, then controls the DU simulator to send a first configuration message of the cell parameters to an RU of an O-RAN communication device, where the first configuration message indicates that the RU configures the cell parameters, then controls the DU simulator to send downlink data packets to the RU, reads a first test parameter value of a radio frequency test instrument, controls the radio frequency test instrument to send uplink data packets to the RU, and reads a second test parameter value of the DU simulator, where the first test parameter value and the second test parameter value are related to a radio frequency index of the RU; and finally determining a corresponding test result based on the first test parameter value or the second test parameter value. Therefore, the RU automatic test can be completed mainly based on the test equipment, manual operation is not needed, the test labor cost is reduced, and the test efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a testing system for open radio access network communication equipment according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a testing system for open radio access network communication devices according to another embodiment of the present disclosure;
fig. 3 is a flowchart of a method for testing an open radio access network communication device according to an embodiment of the present disclosure;
fig. 4 is a flowchart of a method for testing an open radio access network communication device according to another embodiment of the present disclosure.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
It should be understood that, hereinafter, "and/or" is used to describe the association relationship of the associated objects, meaning that there may be three relationships, for example, "a and/or B" may mean: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The traditional O-RAN communication equipment test is implemented manually by software test and hardware test respectively, so that a plurality of test resources are required to be prepared; the workload of traversing coverage test O-RAN protocol parameters and radio frequency indexes is very large, and a large amount of time is needed for manual test. On the basis that the existing O-RAN communication equipment test can not meet the production requirement completely under the conditions of urgent task and limited test time, the following automatic open wireless access network communication equipment test system platform is developed to carry out full test on hardware and software protocols of O-RAN products.
Fig. 1 is a schematic diagram of a testing system for open radio access network communication equipment according to an embodiment of the present disclosure, where the testing system may include a testing device 101, a distributed unit DU simulator 102, and a radio frequency testing apparatus 103. The DU simulator 102 and the radio frequency test instrument 103 are respectively connected to the test device 101. When the test system is used for testing, a wireless unit RU20 of the open radio access network O-RAN communication device is connected with the test device 101, the DU simulator 102 and the radio frequency test instrument 103 respectively.
The test device 101 is configured to control the DU simulator 102 to configure cell parameters. The CELL parameters may be understood in particular with reference to the prior art for configuring, for example, a CELL (CELL) of a 5G network. The test equipment 101 controls the DU simulator 102 to send a first configuration message of cell parameters to the RU20, where the first configuration message indicates that the RU20 configures the cell parameters, i.e. both the RU and the DU configure the cell parameters. After the cell parameters are configured, the test device 101 controls the DU simulator 102 to send downlink data packets to the RU20, the downlink data packets are processed by the RU and then sent to the radio frequency test instrument 103 through the antenna after reaching the RU, and the radio frequency test instrument 103 analyzes and processes the processed downlink data packets sent by the RU.
The test device 101 may read a first test parameter value of the radio frequency test instrument 103, where the first test parameter value is a value of a test parameter related to the downlink data packet. In addition, the test equipment 101 may control the radio frequency test instrument 103 to send an uplink data packet to the RU20, the uplink data packet is processed by the RU20 and then sent to the DU simulator 102, and the test equipment 101 may read a second test parameter value of the DU simulator 102, where the second test parameter value is a value of a test parameter related to the uplink data packet. Illustratively, the first test parameter value and the second test parameter value are radio frequency metrics of the RU 20.
Optionally, in some embodiments of the present disclosure, the first test parameter value may include, but is not limited to, any one or more of an adjacent Channel Leakage ratio aclr (adjacent Channel Leakage ratio), an error Vector magnitude evm (error Vector magnitude), and a power of RU20, and the second test parameter value includes, but is not limited to, an upstream bit error rate. The test device 101 may finally determine a corresponding test result based on the first test parameter value or the second test parameter value.
By way of example, the test device 101 may be, but is not limited to, a test terminal of an open-source automated test framework RobotFramework. The DU simulator 102 may simulate various functions of a real DU and support an O-RAN protocol, on which an O-RAN protocol client, a data sending module and a decoding module, such as an MATLAB decoding module, may be deployed, the data sending module supports sending service data as a downlink data packet, and the decoding module is responsible for processing an uplink data packet sent from an RU, for example. The radio frequency test instrument 103 may be, but is not limited to, a radio frequency analyzer that performs, for example, spectrum analysis, interference analysis, antenna feeder analysis, power testing, and the like. In this embodiment, the radio frequency testing apparatus 103 is configured to perform a radio frequency index test on an RU supporting O-RAN.
In one example, the IP address of RU20 may be set to be the same network segment as the testing computer, and testing apparatus 101 may control RU20 through SSH (secure shell)2 protocol, for example, call SSH2 testing library of robotframe to control RU20, that is, establish a communication connection with RU20, thereby implementing control RU 20. The test device 101 may also invoke an O-RAN test library of the RobotFramework to control the DU simulator 102, that is, establish a communication connection with the DU simulator 102, thereby implementing control of the DU simulator 102.
For example, the test device 101 may encapsulate code for controlling a virtual Instrument Software structure visa (virtual Instrument architecture) library of the radio frequency test Instrument 103, for example, Python script encapsulation is adopted, and an extended test library is encapsulated for RobotFramework, where the extended test library may include different virtual test instruments, and may be specifically set according to needs, which is not limited thereto. When the test equipment 101 controls the radio frequency test instrument 103 to send the uplink data packet, a corresponding virtual test instrument, such as a signal generator, in the extended test library of the RobotFramework may be called by the test script to generate the uplink data packet, and the uplink data packet and the indication information are sent to the radio frequency test instrument 103, where the indication information indicates the radio frequency test instrument 103 to send the uplink data packet to the RU 20.
In an example, the IP address of the rf test instrument 103 may be set to be in the same network segment as the test computer, and the test computer may perform a Programmable instrument standard command scpi (standard Commands for Programmable instruments) control on the rf test instrument 103, although not limited thereto, and the test equipment may also be connected to the rf test instrument 103 through a General-Purpose Interface Bus GPIB (General-Purpose Interface Bus) or USB connection.
In the embodiment, the RU automatic test such as the radio frequency index test can be completed mainly based on the test equipment, manual operation is not needed, the test labor cost is reduced, and the test efficiency is improved.
The existing testing scheme in the industry is to perform testing separately and manually on software testing, namely protocol testing and hardware testing such as radio frequency index testing, because hardware testers usually do not understand software testing, and software testers usually do not understand hardware testing, and respectively perform testing separately and cooperatively, a plurality of testing resources need to be prepared, the testing workload is large, the testing labor cost is high, and the overall testing efficiency is low.
Therefore, on the basis of the above embodiments, in some embodiments of the present disclosure, the testing apparatus 101 is further configured to control the DU simulator 102 to send a second configuration message of O-RAN protocol parameters to the RU20, where the second configuration message instructs the RU20 to configure the O-RAN protocol parameters, such as to configure a specified protocol Parameter, and the configuration value is SetValue; the test equipment 101 controls the DU simulator 102 to send a query message of the O-RAN protocol parameters to the RU20, and the test equipment 101 receives a query result returned by the RU20 in response to the query message, where the query result includes the O-RAN protocol parameters configured by the RU20 based on the second configuration message, for example, the configured value of the configured specified protocol Parameter is GetValue _ RU. The test device 101 determines a protocol test result based on the configured O-RAN protocol parameters and pre-stored O-RAN protocol parameters.
For example, the pre-stored O-RAN protocol Parameter is, for example, a designated protocol Parameter, and the corresponding configuration value is SetValue, and if the SetValue and the GetValue _ RU are equal to each other, the test result is PASS (PASS), i.e., the test is normal, and if the SetValue and the GetValue _ RU are not equal to each other, the test result is FAIL (FAIL), i.e., the test is in error. In some examples, the units of SetValue and GetValue _ RU may not be uniform, and in this case, the units may be converted into uniform units by a formula and then compared.
The scheme of the embodiment can realize that the software test (O-RAN protocol test) and the hardware test (radio frequency index test) of the O-RAN product are automatically tested by using one test system at the same time, a plurality of test resources do not need to be prepared, the manual test cost is further reduced, and the test efficiency is improved.
Optionally, in some embodiments of the present disclosure, as shown in fig. 2, the radio frequency test equipment 103 is connected to a plurality of antenna ports 201 (e.g., antenna ports 1-N) of the RU20 through a switch matrix 30. The switch matrix 30 is connected to the test device 101, for example, the IP address of the switch matrix and the test device 101, such as a test computer, are set to be in the same network segment, or a serial port connection mode is adopted. The test computer can control the on-off of the antenna port of the switch matrix. A power attenuator is connected between the switch matrix 30 and the RU20, for example, a power attenuator (not shown) is connected between each antenna port 201 of the RU20, and the power attenuation amount of the power attenuator is greater than a preset power threshold. The preset power threshold may be determined according to specific needs, which is not limited in this embodiment.
In this embodiment, for multiple channels, that is, for an RU having multiple antenna ports 201, during a specific test, the above test for sending downlink data packets and uplink data packets is performed for each channel, and when all the antenna ports of the RU20 are traversed, a final test result is returned.
In this embodiment, for a multi-channel RU having multiple antenna ports 201, the radio frequency channel switching can be performed on the test antenna through the switch matrix 30, so as to reduce the time for manually replacing the cable, thereby improving the test efficiency. In addition, the power attenuator can avoid damaging the switch matrix when the transmission power of the RU is overlarge, and the working reliability and the stability of the test system are improved.
Optionally, in other embodiments of the present disclosure, with continued reference to fig. 2, the DU simulator 102 is connected to the RU20 through a test fixture 40, where the test fixture 40 is configured to open or close a communication channel between the RU20 and the DU simulator 102 under the control of the test equipment 101.
Optionally, in some embodiments of the present disclosure, the test fixture 40 is further configured to power up or power down the RU20 and/or the DU simulator 102 under the control of the test equipment 101.
Illustratively, in some embodiments of the present disclosure, the test fixture 40 may include a housing, a first switch, a second switch, and a controller (not shown), the housing being provided with power ports, such as a first power port 403 and a second power port 404, a first optical port 402 and a second optical port 401, the first optical port 402 being for connecting with the RU20 through an optical fiber, the second optical port 401 being for connecting with the DU simulator 102 through an optical fiber, an optical fiber (not shown) being connected between the first optical port 402 and the second optical port 401, the power ports being for connecting with the RU and/or the DU simulator, for example, the first power port 403 being electrically connected with the DU simulator 102, and the second power port 404 being electrically connected with the RU 20. The first switch is located inside the housing and is connected between the first optical port 402 and the second optical port 401. A second switch is located inside the housing and is connected to the power port, such as the first power port 403 and/or the second power port 404. The first switch and the second switch may be switches formed by CMOS transistors, but are not limited thereto. The controller is connected to the testing apparatus 101, and is connected to the first switch and the second switch respectively, and is configured to control an open/close state of the first switch, so as to open or close an optical communication channel between the RU20 and the DU simulator 102, and to control an open/close state of the second switch, so as to control power on/off of the RU20 and/or the DU simulator 102. The specific implementation of these circuit elements is within the skill of the art and can be implemented with reference to the prior art, without limitation. In one example, the IP address of the test fixture 40 and the test device 101, such as a test computer, may be set to be in the same network segment (or in a serial connection manner), and the test computer may control the on/off of the power port and the optical port of the test fixture 40, so as to implement the on/off control of the optical fiber and the power-on/off control.
On the basis of the above embodiment, in this embodiment, by controlling the test fixture 40 and the radio frequency test instrument 103, on-off control and power-up and power-down control of the optical fiber can be performed, and further, robustness or stability test of the RU can be performed, so that more comprehensive and richer services and performance automated tests can be covered, one set of test system can support multiple different tests, test schemes are enriched, and test cost is saved.
Optionally, in some embodiments of the present disclosure, the test apparatus 101 includes a data determining unit and a result determining unit, where the data determining unit is configured to determine whether the first test parameter value is within a first test parameter target range or whether the second test parameter value is within a second test parameter target range. And the result determining unit is used for determining that the test result is correct when the judgment result of the data judging unit is yes.
For example, the testing device 101 determines whether any one of the adjacent Channel Leakage ratio aclr (adjacent Channel Leakage ratio), the error Vector magnitude evm (error Vector magnitude), and the power is within a corresponding target range of the testing parameters, and if so, the testing result is correct. Otherwise, if the test result is incorrect, the RU needs to be retested or adjusted. Or, the test equipment 101 determines whether the uplink bit error rate is within the corresponding test parameter target range, if so, the test result is correct, and if not, the test result is incorrect, and the RU needs to be retested or adjusted.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units. The components shown as modules or units may or may not be physical units, i.e. may be located in one place or may also be distributed over a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the wood-disclosed scheme. One of ordinary skill in the art can understand and implement it without inventive effort.
The embodiment of the disclosure provides a method for testing open radio access network communication equipment, which is applied to a test system, wherein the test system comprises a distributed unit DU simulator, a radio frequency test instrument and test equipment, and the DU simulator and the radio frequency test instrument are respectively connected with the test equipment. And when the test system is used for testing, the wireless unit RU of the O-RAN communication equipment of the open wireless access network is respectively connected with the test equipment, the DU simulator and the radio frequency test instrument. As shown in fig. 3, the method may be performed by a test device, comprising the steps of:
step S301: and controlling the DU simulator to configure cell parameters.
Step S302: control a DU emulator to send a first configuration message of cell parameters to an RU, the first configuration message indicating that the RU configures the cell parameters.
Step S303: controlling a DU simulator to send downlink data packets to the RU, reading a first test parameter value of the radio frequency test instrument, controlling the radio frequency test instrument to send uplink data packets to the RU, and reading a second test parameter value of the DU simulator; the first test parameter value and the second test parameter value are radio frequency metrics of the RU.
Step S304: a corresponding test result is determined based on the first test parameter value and/or the second test parameter value.
Optionally, in some embodiments of the present disclosure, as shown in fig. 4, the method may further include the steps of:
step S401: control the DU emulator to send a second configuration message of O-RAN protocol parameters to the RU, the second configuration message indicating that the RU configures the O-RAN protocol parameters.
Step S402: and controlling the DU simulator to send a query message of the O-RAN protocol parameters to the RU, and receiving a query result returned by the RU in response to the query message, wherein the query result comprises the O-RAN protocol parameters configured by the RU based on the second configuration message.
Step S403: and determining a protocol test result based on the configured O-RAN protocol parameters and pre-stored O-RAN protocol parameters.
Specifically, as an example, the second configuration message indicates, for example, to configure a specified protocol Parameter, and the configuration value is SetValue; the test equipment 101 controls the DU simulator 102 to send a query message of the O-RAN protocol parameters to the RU20, and the test equipment 101 receives a query result returned by the RU20 in response to the query message, where the query result includes the O-RAN protocol parameters configured by the RU20 based on the second configuration message, for example, the configured value of the configured specified protocol Parameter is GetValue _ RU. The test device 101 determines a protocol test result based on the configured O-RAN protocol parameters and pre-stored O-RAN protocol parameters.
Optionally, in some embodiments of the present disclosure, the radio frequency test apparatus is connected to the plurality of antenna ports of the RU through a switch matrix, and the switch matrix is connected to the test device; and a power attenuator is connected between the switch matrix and the RU, and the power attenuation of the power attenuator is greater than a preset power threshold.
Optionally, in some embodiments of the present disclosure, the DU simulator is connected to the RU through a test fixture, and the test fixture is configured to open or close a communication channel between the RU and the DU simulator under the control of the test equipment.
Optionally, in some embodiments of the present disclosure, the test fixture is further configured to power up or power down the RU and/or the DU simulator under control of the test equipment.
Wherein, the test fixture includes: the device comprises a shell, a power port, a first optical port and a second optical port are arranged on the shell, the first optical port is used for being connected with the RU through an optical fiber, the second optical port is used for being connected with the DU simulator through an optical fiber, the optical fiber is connected between the first optical port and the second optical port, and the power port is used for being connected with the RU and/or the DU simulator; the first switch is positioned in the shell and connected between the first light port and the second light port; the second switch is positioned inside the shell and connected with the power supply port; and the controller is connected with the test equipment, is respectively connected with the first switch and the second switch, and is used for controlling the open-close state of the first switch so as to open or close an optical communication channel between the RU and the DU simulator and controlling the open-close state of the second switch so as to control the power supply on-off of the RU and/or the DU simulator.
Optionally, in some embodiments of the present disclosure, the step S304 may specifically include the following steps:
judging whether the first test parameter value is within a first test parameter target range or whether the second test parameter value is within a second test parameter target range;
and when the judgment result is yes, determining that the test result is correct.
Optionally, in some embodiments of the present disclosure, the first test parameter value includes, but is not limited to, any one or more of an adjacent channel leakage ratio, an error vector magnitude, and a power of the RU, and the second test parameter value includes, but is not limited to, an uplink bit error rate.
Optionally, in some embodiments of the present disclosure, the test device may be, but is not limited to, a test terminal of an open-source-based automation test framework RobotFramework.
It should be noted that although the various steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that these steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc. Additionally, it will also be readily appreciated that the steps may be performed synchronously or asynchronously, e.g., among multiple modules/processes/threads.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An open radio access network communication device test system, comprising: the device comprises a distributed unit DU simulator, a radio frequency test instrument and test equipment, wherein the DU simulator and the radio frequency test instrument are respectively connected with the test equipment;
when the test system is used for testing, a wireless unit RU of the O-RAN communication equipment of the open wireless access network is respectively connected with the test equipment, the DU simulator and the radio frequency test instrument;
the test equipment is used for:
controlling the DU simulator to configure cell parameters;
control the DU emulator to send a first configuration message of cell parameters to the RU, the first configuration message indicating that the RU configures the cell parameters;
controlling the DU simulator to send downlink data packets to the RU, reading a first test parameter value of the radio frequency test instrument, controlling the radio frequency test instrument to send uplink data packets to the RU, and reading a second test parameter value of the DU simulator, wherein the first test parameter value and the second test parameter value are radio frequency indexes of the RU;
determining a corresponding test result based on the first test parameter value or the second test parameter value.
2. The test system of claim 1, wherein the test device is further configured to:
control the DU emulator to send a second configuration message of O-RAN protocol parameters to the RU, the second configuration message indicating that the RU configures the O-RAN protocol parameters;
controlling the DU simulator to send a query message of the O-RAN protocol parameters to the RU, and receiving a query result returned by the RU in response to the query message, wherein the query result comprises the O-RAN protocol parameters configured by the RU based on the second configuration message;
and determining a protocol test result based on the configured O-RAN protocol parameters and pre-stored O-RAN protocol parameters.
3. The test system of claim 1 or 2, further comprising a switch matrix through which the radio frequency test instrument is connected to the plurality of antenna ports of the RU, the switch matrix being connected to the test equipment;
and a power attenuator is connected between the switch matrix and the RU, and the power attenuation of the power attenuator is greater than a preset power threshold.
4. The test system of claim 3, further comprising a test fixture through which the DU emulator is connected to the RU, the test fixture being configured to open or close a communication channel between the RU and the DU under control of the test equipment; and/or, the test fixture is to power or power down the RU and/or the DU under control of the test equipment.
5. The test system of claim 4, wherein the test fixture comprises:
the device comprises a shell, a power port, a first optical port and a second optical port are arranged on the shell, the first optical port is used for being connected with the RU through an optical fiber, the second optical port is used for being connected with the DU through an optical fiber, the optical fiber is connected between the first optical port and the second optical port, and the power port is used for being connected with the RU and/or the DU;
the first switch is positioned in the shell and connected between the first light port and the second light port;
the second switch is positioned inside the shell and connected with the power supply port;
and the controller is connected with the test equipment, is respectively connected with the first switch and the second switch, and is used for controlling the open-close state of the first switch so as to open or close the optical communication channel between the RU and the DU, and controlling the open-close state of the second switch so as to control the power supply on-off of the RU and/or the DU.
6. The test system of claim 3, wherein the test equipment comprises:
the data judgment unit is used for judging whether the first test parameter value is in a first test parameter target range or judging whether the second test parameter value is in a second test parameter target range;
and the result determining unit is used for determining that the test result is correct when the judgment result of the data judging unit is yes.
7. The test system of claim 6, wherein the first test parameter values comprise any one or more of adjacent channel leakage ratio, error vector magnitude, and power for the RU, and wherein the second test parameter values comprise upstream bit error rate.
8. A method for testing open radio access network communication equipment is characterized by being applied to a test system, wherein the test system comprises a distributed unit DU simulator, a radio frequency test instrument and test equipment, wherein the DU simulator and the radio frequency test instrument are respectively connected with the test equipment; when the test system is used for testing, a wireless unit RU of the O-RAN communication equipment of the open wireless access network is respectively connected with the test equipment, the DU simulator and the radio frequency test instrument; the method comprises the following steps:
controlling the DU simulator to configure cell parameters;
control the DU emulator to send a first configuration message of cell parameters to the RU, the first configuration message indicating that the RU configures the cell parameters;
controlling the DU simulator to send a downlink data packet to the RU, and reading a first test parameter value of the radio frequency test instrument; or, controlling the radio frequency test instrument to send an uplink data packet to the RU, and reading a second test parameter value of the DU simulator; the first test parameter value and the second test parameter value are radio frequency metrics of the RU;
determining a corresponding test result based on the first test parameter value or the second test parameter value.
9. The method of testing of claim 8, further comprising:
control the DU emulator to send a second configuration message of O-RAN protocol parameters to the RU, the second configuration message indicating that the RU configures the O-RAN protocol parameters;
controlling the DU simulator to send a query message of the O-RAN protocol parameters to the RU, and receiving a query result returned by the RU in response to the query message, wherein the query result comprises the O-RAN protocol parameters configured by the RU based on the second configuration message;
and determining a protocol test result based on the configured O-RAN protocol parameters and pre-stored O-RAN protocol parameters.
10. The method of claim 8, wherein the first test parameter values comprise any one or more of adjacent channel leakage ratio, error vector magnitude, and power for the RU, and wherein the second test parameter values comprise upstream bit error rate.
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