CN112867044A - Base station simulation test terminal, test method and device - Google Patents
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Abstract
The invention provides a base station simulation test terminal, a test method and a device, wherein the terminal comprises a protocol stack function module and a protocol interface adaptation module, the protocol stack function module comprises a plurality of protocol stack sublayers which are equivalent to entities in a protocol stack of a tested base station, communication interaction exists between the upper layer and the lower layer of the plurality of protocol stack sublayers, and the protocol stack sublayers are directly communicated with the equivalent entities in the protocol stack of the tested base station through the protocol interface adaptation module. By setting the protocol stack function module and building the protocol stack sub-layer corresponding to the base station entity, the requirements of module level test of each protocol sub-layer and integral test of the protocol stack can be realized. Through the direct communication of the protocol stack sublayer and the peer entity in the protocol stack of the tested base station, the relevant modules of the tested base station product can be tested even if the physical layer, the bottom layer radio frequency RU unit and the like of the tested base station are not ready temporarily, so that the testing requirements of each stage in the base station research and development process can be met.
Description
Technical Field
The invention relates to a mobile communication base station testing technology, in particular to a base station simulation testing terminal, a testing method and a testing device.
Background
Under the circumstance that the digital age is coming comprehensively, communication networks, particularly mobile communication networks, become an indispensable existence like water, electricity and gas in the production and living activities of the human society gradually. The deep dependence of the vast users on the mobile communication network requires that the modern mobile communication network not only can provide the service functions and performance levels required by the users, but also requires that the service functions and performance are supplied continuously by 7 × 24 × 365, which requires that the mobile communication network has extremely high stability and reliability. The mobile communication base station device is used as a communication device directly interacting with a user terminal in a mobile communication network access network, and also used as a network device with the largest deployment scale in the mobile communication network, and plays a vital role in the aspects of communication service provision, stability and reliability thereof. Therefore, whether the communication base station equipment supplier is in the processes of related product development, field trial, scale shipment and the like, or the mobile communication network operator is in the processes of network batch deployment, network operation maintenance and the like, various severe product tests are required to ensure that the quality of base station products delivered downstream meets the expected requirements, and finally the requirement of the mobile communication network for stably, reliably and completely providing communication service can be met.
In the testing activities of each link of the base station equipment, in most cases, one or more user terminal equipment are used for cooperation testing, and the terminal accesses the cellular cell of the tested base station to perform protocol flow interaction of various control planes and user data transmission of a data plane with a mobile communication network, so as to verify whether the base station equipment meets the relevant technical specifications or not and whether the network can provide expected service functions and performance or not. Meanwhile, due to the variety of user terminal devices and the variety of terminal brands and types, although the user terminal devices are realized according to a unified technical standard or specification on the whole, different terminals may have different UE capabilities, different characteristic parameter sets and even different protocol versions within a specific range allowed by the standard specification under the framework of the technical standard or specification, and the factors may cause different interactions with the base station device and the mobile communication network, so as to put forward different requirements on the peer device.
At present, in each test stage of the research and development and production of base station equipment and the operation and maintenance process of a network, people mostly adopt a real commercial terminal to test the base station equipment, which has the following problems:
1. before the integration and delivery of each module of the base station equipment, in the research and development process, the terminal cannot be used for carrying out actual service butt joint test on a base station protocol stack and other functions of the base station, and an objective neutral means or tool is lacked for carrying out module-level butt joint test on a product under study, so that defects are difficult to find in time.
2. In the stage of introducing a new mobile communication system, a few commercial terminals supporting a new generation communication network in the market are available, the UE capability and feature function set of the commercial terminals for testing are fixed, the supported protocol version is unique, and all relevant features of the base station cannot be completely tested. In the processes of base station product research, development, production and network operation maintenance, more sufficient IoT test cannot be achieved.
3. Many test scenarios need to be artificially constructed at the test terminal side, such as scenarios of RRC connection reestablishment, data packet loss, CRC check failure, and the like, whereas for a commercial terminal for testing, an equipment manufacturer thereof implements strict encapsulation on a terminal side protocol stack for safety considerations, and a tester is difficult to realize convenient triggering of a relevant test scenario through a protocol stack inside the terminal, and needs to construct a real specific scenario to trigger a specific service flow. Some commercial terminal manufacturers provide special terminal debugging tools, such as a high-throughput QXDM tool and a hua HiStudio tool, for testing needs of partners, so as to customize and debug various parameters of respective devices, but the terminal parameters which can be controlled by themselves are limited overall.
4. In the network operation and maintenance process, complaints which are caused only by user terminals of specific brands and models often occur, in the problem reproduction and positioning solving processes, the same terminals are required to be used, the cost investment for solving the complaints by operators is high, the later-period utilization rate of the specific terminals after the problems are solved is low, and certain resource waste is caused.
5. When the test device is used as a test device, the commercial terminal is difficult to integrate with the existing automatic test framework, and an automatic test program needs to be written in a targeted manner according to a specific control command of a commercial terminal manufacturer to carry out limited automatic test control on the terminal.
6. The specification or pressure test of the base station equipment such as capacity test, impact test and the like is very necessary for equipment manufacturers and operators, but a large number of test terminals are needed, real commercial terminals are used as the test terminals, on one hand, the test cost is increased sharply, in addition, the test is not convenient to be performed in a unified and coordinated mode, and a special test control platform needs to be developed aiming at a test scene. In addition, there are professional mobile test terminal devices on the market that are sold by several foreign vendors such as TM500, but the prices of millions of minbi are very stressful for many small and medium-sized device vendors.
In summary, in the existing mobile communication base station wireless protocol stack testing process, the adopted testing method mostly depends on a real commercial terminal, has high requirements on the integration level of the tested object (the protocol stack functions are required to be completely integrated), and can not well develop the test in the stages of individual development and module-by-module testing of each protocol stack sublayer. In addition, in each testing stage, the existing testing method is difficult to flexibly construct various testing scenes, and a large number of terminals required by tests such as capacity specifications and impact tests cause too high testing cost.
Disclosure of Invention
The invention aims to provide a base station simulation test terminal capable of testing communication base station equipment.
Another object of the present invention is to provide a testing method and apparatus capable of testing a communication base station device.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
According to one aspect of the invention, a base station simulation test terminal is provided, which comprises a protocol stack function module and a protocol interface adaptation module, wherein the protocol stack function module comprises a plurality of protocol stack sublayers which are equivalent to entities in a protocol stack of a tested base station, communication interaction exists between an upper layer and a lower layer of the plurality of protocol stack sublayers, and each protocol stack sublayer also supports and is configured to be directly communicated with the equivalent entities in the protocol stack of the tested base station through the protocol interface adaptation module.
In an embodiment, the protocol interface adaptation module of the base station simulation test terminal is configured to manage message interaction between protocol stack sublayers or between a protocol stack sublayer and a peer entity of a base station under test, and is further configured to switch interface interaction between a specified protocol stack sublayer and a lower protocol stack sublayer to interface interaction with the peer entity of the base station under test according to a configuration indication, or vice versa.
In an embodiment, the base station simulation test terminal further includes an operation maintenance module, where the operation maintenance module is configured to modify and maintain the full parameters of the protocol stack sublayer, autonomously trigger an air interface protocol message that can be actively initiated by the terminal side, and autonomously customize a related cell carried by the message.
In an embodiment, the operation maintenance module of the base station simulation test terminal has a function of tracking signaling messages between the protocol stack function module and entities in the protocol stack of the base station to be tested, messages between protocol stack sublayers, and a function of intercepting a designated message according to configuration to control a protocol flow.
In an embodiment, the operation maintenance module of the base station simulation test terminal further has UE capability collection and storage functions.
In an embodiment, the base station simulation test terminal further includes a test interface management module, where the test interface management module is configured to interface with the automated test platform, and the test interface management module obtains a test case from the test case library, and controls the simulator to execute a test procedure according to the test case procedure through the operation maintenance module, or feeds back a test case result to the automated test platform.
In an embodiment, the test interface management module of the base station simulation test terminal further supports docking with a third-party automated test framework, and the simulation test terminal device performs automated test case execution under the instruction of the test case of the test framework.
In an embodiment, the protocol stack sublayer of the base station simulation test terminal includes a simulation physical layer and a specific docking layer, an interface of the specific docking layer is docked with an LTE/5G link level simulation application program, and the simulation physical layer is docked with a physical layer entity of the base station to be tested through a direct interface.
In one embodiment, the simulated physical layer of the base station simulated test terminal also supports interfacing with SDR radio frequency hardware.
According to another aspect of the present invention, there is also provided a test method of a mobile communication base station, including the steps of: determining a test requirement based on the current stage of the tested base station; carrying out minimum function set configuration on the simulation test terminal according to test requirements, and constructing a test environment by configuring a protocol stack function module, wherein the protocol stack function module comprises a plurality of protocol stack sublayers which are equivalent to entities in a protocol stack of a tested base station; executing a test case, and testing the base station to be tested, wherein the direct interaction between a protocol stack sublayer and a peer entity in the base station to be tested is realized through a protocol interface adaptation module; and verifying whether the behavior of the tested base station is in accordance with the expectation.
In one embodiment, the testing method further comprises: the method comprises the steps of collecting and storing UE capacity data of the existing commercial terminal on the market as a terminal capacity sample library, and extracting the UE capacity data of a specific terminal from the sample library as required in the subsequent testing process so as to simulate the protocol behavior of the specific commercial terminal.
According to another aspect of the present invention, there is also provided a simulation test apparatus, including a memory and a processor; the memory for storing a computer program; the processor is configured to implement the test method of the mobile communication base station of any one of the above methods when executing the computer program.
The base station simulation test terminal embodiment of the invention has the advantages that: by setting the protocol stack function module and building the protocol stack sublayer corresponding to the base station entity, the requirements of module level test and integrated test can be realized. Through the direct communication of the protocol stack sublayer and the peer entity in the protocol stack of the tested base station, the relevant modules of the tested base station product can be tested even if the physical layer, the low-layer radio frequency RU unit and the like of the tested base station are not ready temporarily, so that the testing requirements of each stage in the base station research and development process can be met.
The method and the device have the same technical effects because of having corresponding technical characteristics.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
The above features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.
FIG. 1 is a simplified block diagram of a mobile communications network;
FIG. 2 is a functional block diagram of an embodiment of a base station simulation test terminal according to the present invention;
fig. 3 is a schematic diagram of a base station interfacing with a base station according to an embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be construed as imposing any limitation on the scope of the present invention.
Fig. 1 is a simplified block diagram of a mobile communication network, and according to the simplified diagram, it can be known that the mobile communication network mainly comprises three parts, namely, a user terminal 1, a communication base station 2 and a core network 3, and the base station simulation test terminal and the mobile communication test method provided by the present invention mainly use the communication base station 2 as a test object and the user terminal 1 as an auxiliary test tool to test functions, specifications, performance and the like of a wireless air interface (Uu port) protocol between the communication base station 2 and the user terminal 1.
In order to provide a high-efficiency and flexible testing method, an embodiment of the invention provides a base station simulation testing terminal, a schematic diagram of a functional module of the simulation testing terminal is shown in fig. 2, and the simulation testing terminal comprises a protocol stack functional module and a protocol interface adaptation module, the protocol stack functional module comprises a plurality of protocol stack sublayers which are equivalent to entities in a protocol stack of a tested base station, the upper layer and the lower layer of the plurality of protocol stack sublayers are in communication interaction, and the protocol stack sublayers are in direct communication with the equivalent entities in the protocol stack of the tested base station through the protocol interface adaptation module.
The communication protocol stack of the base station test simulation terminal provided by the invention is realized by modularizing each sublayer of the protocol stack on the basis of related technical specifications and standards, each sublayer of the protocol stack can be in communication interaction with an upper sublayer and a lower sublayer according to the standard specifications, and can also be in direct communication with a peer entity of the protocol stack sublayer at the side of a tested base station through a bypass direct interface, so that the requirements of module level test and integrated test at each stage in the base station research and development process are met.
The protocol interface adaptation module is used for managing message interaction between the protocol stack sublayers or between the protocol stack sublayers and entities in the protocol stack of the tested base station, and is also used for switching the interface interaction between the specified protocol stack sublayer and the lower protocol stack sublayer into the interface interaction with peer entities of the tested base station according to the configuration indication, or vice versa.
In a possible embodiment, the base station test simulation terminal further includes an operation and maintenance module, where the operation and maintenance module is configured to modify and maintain the full parameters of the protocol stack sub-layer, and autonomously trigger an air interface protocol message that can be actively initiated by the terminal side. In addition, the operation maintenance module can also automatically customize the relevant information elements carried by the message under the premise of complying with the technical standard so as to easily construct various expected test scenes and verify whether various behaviors of the tested base station meet expectations. The function greatly improves the testing efficiency of the base station test.
Furthermore, the operation maintenance module has the functions of tracking signaling messages between the protocol stack function module and entities in the protocol stack of the base station to be tested and messages between protocol stack sublayers, and also has the function of intercepting designated messages according to configuration to control the protocol flow.
Preferably, the operation maintenance module further has functions of UE capability collection and storage, so that UE capability attributes of a real commercial terminal can be imported, diversified UE capabilities of existing commercial terminals are simulated from a protocol layer to the measured base station, and meanwhile, self-customization of the UE capability attributes is supported, and high, medium, low and different capability specification configuration is performed on the UE capability based on a related technical standard, so as to completely verify the support degree of the measured base station on terminals with different capabilities.
In a possible embodiment, the base station test simulation terminal further includes a test interface management module, and the test interface management module is used for interfacing with an automated test platform. The test interface management module acquires the test cases from the test case library, and controls the simulator to execute the test steps through the operation maintenance module according to the test case steps, or feeds back the test case results to the automatic test platform.
The test interface management module also supports the butt joint with a third-party automatic test framework, and the simulation test terminal device carries out automatic test case execution under the instruction of the test case of the test framework.
The test simulation terminal provided by the invention is used as a test tool to provide a test interface, can be butted with a mainstream automatic test frame of a third party, and is matched with the test case of the test frame to execute the automatic test case under the instruction of the test case of the test frame.
In a possible embodiment, the protocol stack sub-layer comprises a simulation physical layer and a specific interface layer, an interface of the specific interface layer is interfaced with the LTE/5G link-level simulation application program, and the simulation physical layer is interfaced with a physical layer entity of the base station to be tested through a direct interface.
The test simulation terminal provided by the invention also provides an open service module interface, can be butted with an LTE/5G link level simulation application program of a third-party platform such as MATLAB and the like, and is butted with a physical layer entity of the tested base station through a direct interface in a physical layer, so that the link behavior between the tested base station and the simulation terminal is freely controlled and visualized, and the test depth, the test convenience and the test process presentation intuitiveness of the air interface protocol test of the base station are greatly improved.
In a possible embodiment, the invention proposes a test simulation terminal whose simulated physical layer supports interfacing with SDR radio frequency hardware, such as USRP B200, Blade RF, etc., to provide radio frequency signal transceiving. Therefore, the test requirements of the frequency band diversified scenes of the product can be met with lower cost and higher flexibility.
Fig. 3 illustrates a data communication link connection manner between peer entities, in which when a base station under test is in an early stage of product development, an upper layer protocol stack needs to perform a protocol consistency test, but a physical layer and a lower layer radio frequency RU unit of the base station are not ready for a moment and cannot provide a complete protocol stack function, the simulation test terminal is used to test a relevant module of a base station under test.
Under the scene, a protocol stack function module and a protocol interface adaptation module are controlled through a test interface management module according to a defined test case set of an automated test platform, and after a predefined test set (consisting of a plurality of test cases with correlation or the same theme) is triggered, a preparation action before the test case is executed is firstly carried out, including but not limited to the preparation of a test environment or the confirmation of whether the test environment meets expectations by triggering a local or remote automation command, such as whether a tested base station, a core network and the like are normally networked; in addition, the method may further include performing parameter configuration or parameter confirmation on the simulation test terminal, and further may further include controlling the simulation test terminal to initiate a random access procedure, where the related message interacts with a protocol stack of the docked base station to be tested through the protocol interface adaptation module, so as to be accessed into a wireless cell of the base station to be tested.
And after the preparation action before execution is finished, executing the test cases one by one according to the specified sequence. A typical test case is that a simulation test terminal that has accessed a base station network is controlled to initiate a certain protocol flow, after an initial message of the protocol flow is sent to a tested base station, the tested base station processes the received message according to its established service logic and feeds back a response message to the simulation test terminal, a test framework continuously monitors the message received by a protocol stack entity of the simulation test terminal through the test case, and if it is monitored that an expected feedback response message arrives, the test framework intercepts the message in a specific protocol sublayer (for example, in an RRC layer). After the test case intercepts the message, the message is decoded and whether the message type is in accordance with the expectation, whether the cell concerned by the current case and the parameter value thereof are in accordance with the expectation in the cell carried in the message, and the like are determined. If the cell parameters concerned in the message are confirmed to meet the expectation, the message is put back to the flow, and the simulation protocol stack continues to process the subsequent message according to the protocol specification; if the concerned cell parameter in the feedback message is not in accordance with the expectation, the test case is failed to execute, the test case is finished executing, the case result is marked as failure, and the failure result is fed back to the test platform. And whether the test case is successfully or unsuccessfully executed, after the test result is fed back to the test platform, the next test case in the test set is continuously executed until all the cases in the test set are completely executed.
After all the cases in the test suite are executed, a post-test ending action needs to be executed, for example, the parameter configuration of the simulation test terminal or the tested base station is recovered to the configuration before execution, or the simulation test terminal needs to be controlled to trigger a network quitting flow to quit the base station network and shut down. Of course, before and after each test case is executed, there may be a case-level pre-test preparation work and a post-test ending action according to specific needs.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The above description is only a preferred example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.
Claims (12)
1. A base station simulation test terminal is characterized in that: the device comprises a protocol stack function module and a protocol interface adaptation module, wherein the protocol stack function module comprises a plurality of protocol stack sublayers which are equivalent to entities in a protocol stack of a tested base station, the upper layer and the lower layer of the plurality of protocol stack sublayers are in communication interaction, and the protocol stack sublayers are in direct communication with the equivalent entities in the protocol stack of the tested base station through the protocol interface adaptation module.
2. The base station simulation test terminal of claim 1, wherein: the protocol interface adaptation module is used for managing message interaction between the protocol stack sublayers or between the protocol stack sublayers and peer entities in the protocol stack of the tested base station, and is also used for switching the interface interaction between the specified protocol stack sublayer and the lower protocol stack sublayer into the interface interaction with the peer entities of the tested base station according to the configuration indication, or vice versa.
3. The base station simulation test terminal of claim 1, wherein: the operation maintenance module is used for carrying out configuration modification and maintenance on the total parameters of each protocol stack sublayer, carrying out autonomous triggering on an air interface protocol message which can be actively initiated by a terminal side and carrying out autonomous customization on related cells carried by the message.
4. The base station simulation test terminal of claim 3, wherein: the operation maintenance module has the functions of tracking signaling messages between the protocol stack function module and entities in the protocol stack of the base station to be tested and messages between protocol stack sublayers, and also has the function of intercepting designated messages according to configuration to control protocol flows.
5. The base station simulation test terminal of claim 3, wherein: the operation maintenance module also has the functions of UE capability collection and storage.
6. The base station simulation test terminal of claim 3, wherein: the test platform comprises an automatic test platform, and is characterized by further comprising a test interface management module, wherein the test interface management module is used for being in butt joint with the automatic test platform, the test interface management module acquires test cases from the test case library, and controls the simulator to execute test steps according to the test case steps through the operation maintenance module, or feeds back the test case results to the automatic test platform.
7. The analog test termination device of claim 6, wherein: the test interface management module also supports the butt joint with a third-party automatic test framework, and the simulation test terminal device executes the automatic test case under the instruction of the test case of the test framework.
8. The base station simulation test terminal of claim 1, wherein: the protocol stack sublayer comprises a simulation physical layer and a specific butt joint layer, an interface of the specific butt joint layer is in butt joint with an LTE/5G link level simulation application program, and the simulation physical layer is in butt joint with a physical layer entity of the base station to be tested through a direct connection interface.
9. The base station simulation test terminal of claim 8, wherein: the analog physical layer also supports interfacing with SDR radio frequency hardware.
10. A test method for a mobile communication base station is characterized by comprising the following steps:
determining a test requirement based on a product test stage in which a tested base station is currently located;
carrying out minimum function set configuration on the simulation test terminal according to test requirements, and constructing a test environment by configuring a protocol stack function module, wherein the protocol stack function module comprises a plurality of protocol stack sublayers which are equivalent to entities in a protocol stack of a tested base station;
executing a test case, and testing the base station to be tested, wherein the direct interaction between a protocol stack sublayer and a peer entity in the base station to be tested is realized through a protocol interface adaptation module;
and verifying whether the behavior of the tested base station is in accordance with the expectation.
11. The method for testing a mobile communication base station according to claim 10, further comprising: the method comprises the steps of collecting and storing UE capacity data of the existing commercial terminal on the market as a terminal capacity sample library, and extracting the UE capacity data of a specific terminal from the sample library as required in the subsequent testing process so as to simulate the protocol behavior of the specific commercial terminal.
12. A simulation test device, characterized in that: comprising a memory and a processor;
the memory for storing a computer program;
the processor, when executing the computer program, is configured to implement the method for testing a mobile communication base station according to claim 10 or 11.
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| CN113852975A (en) * | 2021-08-19 | 2021-12-28 | 浙江三维利普维网络有限公司 | Method and device for determining performance of protocol stack program of base station |
| CN116112943A (en) * | 2023-02-20 | 2023-05-12 | 中国科学院计算技术研究所 | Analog communication system, deployment method thereof and analog communication test method |
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