CN102355688A - Equipment testing system and method - Google Patents
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Abstract
The embodiment of the invention discloses an equipment testing system and an equipment testing method, and relates to the technical field of wireless communication and is used for improving the effectiveness of tests in access network equipment. In the system and the method, tested access network equipment is connected with a terminal, a core network (CN) and a high-capacity caller. The method comprises that: the high-capacity caller simulates a plurality of terminals to initiate service requests to the tested access network equipment; the terminals initiate service requests to the tested access network equipment; the tested access network equipment receives the service requests initiated by the terminals and the service requests initiated by the high-capacity caller; the tested access network equipment forwards the service requests initiated by the terminals to the CN, and forwards the service requests initiated by the high-capacity caller to the high-capacity caller; the high-capacity caller simulates the CN to process the service requests forwarded by the tested access network equipment; and the CN processes the service requests forwarded by the tested access network equipment. By the system and the method, the effectiveness of the tests in the equipment can be improved.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a system and method for device testing.
Background
Mobile communication refers to a communication mode in which two or at least one of the two communication parties exchange information while in motion, and has a characteristic that the number of users and a traffic model are not fixed. The test under the laboratory environment mainly comprises a function test and a performance pressure test, wherein the function test refers to verifying whether the function of the equipment meets the requirement under the real environment; the performance pressure test refers to the fact that a large-capacity calling device (such as a Catapult instrument) is used for simulating a plurality of online users to initiate services at the same time, and the bearing capacity of a network to various service models and the stability of the network under the condition of large user quantity are verified.
A test configuration for performing a function test on a Radio Network Controller (RNC) in a real scene is shown in fig. 1, in which a User Equipment (UE) is connected to a base station through a Radio frequency cable, a base station (NodeB) is connected to the RNC through an optical fiber/Network cable/E1 cable, and the RNC is connected to a Core Network (CN) through an optical fiber/Network cable. A signaling monitor is usually installed between the IU interface and the IUB interface to observe the working condition of the interoffice interface. When the test starts, the test engineer tests different service types and different functions of voice, data and the like by operating the terminal according to the test case, and checks the voice service quality, whether the data service rate is stable, whether the network equipment function meets the requirements of design and field application and the like. The Iu interface is the interface between the CN and the RNC, and the IUB interface is the interface between the RNC and the base station.
As shown in fig. 1, the real terminal and the base station ensure that the testing environment is substantially consistent with the current network application environment, but the testing terminal is operated by people, which is often influenced by the number of terminals and the operation complexity, resulting in a large difference between the number of users/the distribution model and the current network, which also causes some functions to pass the laboratory test, but some new problems occur in the current network application.
The test configuration for performing performance pressure test on the RNC is shown in fig. 2, and a high-capacity caller is used to perform full enclosure test on the RNC by simulating NodeB and UE at the IUB port and simulating CN at the IU port. When the test starts, a test engineer operates a large-capacity calling device to load a test script, wherein the test script comprises parameters such as a telephone traffic model, user distribution conditions, calling times, calling intervals and the like; then, the simulated CN, the simulated NodeB and the UE are started, after the simulated CN, the simulated NodeB and the UE are normally started, parameters such as a traffic model (such as the proportion of Circuit Switching (CS)/Packet Switching (PS)/Virtual Private (VP) services), user distribution conditions (such as linear distribution/Gaussian distribution/Poisson distribution), calling times, calling intervals and the like on a large-capacity calling device are set, and then a large-traffic call is initiated. And finally, checking whether the functions and performances of the RNC under the condition of simulating large traffic are normal or not and whether the board card fault phenomenon exists or not.
Therefore, the core part of the performance stress test is a high-capacity calling device, along with the technical progress, the calling device adopts a physical layer protocol control information (PPCI) slot structure at present, the capacity is expandable, and hundreds of thousands of even millions of users can be simulated to initiate services with different telephone traffic models. The caller uses Linux operating system, graphical interface operation, but remote control, the call model is nimble, and it is more convenient than real terminal to operate. However, the analog caller still has some differences from the real network element, which also limits the application range thereof to the performance stress test part and does not fully exert the characteristic of flexible operation.
In the process of implementing the invention, the inventor finds that the following technical problems exist in the prior art:
the functional test under the real scene has the following defects:
firstly, the number of terminals is small, and the operation is complex;
the test terminals are expensive, the number of terminals in the laboratory is limited and they are reused in each test line. Before testing, cell residence and parameter setting are often performed on each terminal, and the workload of a test engineer is increased. Meanwhile, the individual difference of the test terminals may cause the test results of different terminals to be inconsistent.
Secondly, the calling model is single and has a large difference with the application scene;
each function test in a laboratory is usually executed by 1-2 engineers, the difference between a telephone traffic model and a calling frequency and the current network is large due to the limitation of personnel, so that the problem which occurs under certain user pressure cannot be found in the laboratory stage, and the cost of subsequent problem repair is increased.
The performance pressure test using a large-capacity pager has the following disadvantages:
firstly, the network environment is inconsistent with the real scene;
the high-capacity caller can simulate each network element of CN/RNC/NodeB/UE, but has difference with real equipment, for example, the CN simulated by the high-capacity caller does not distinguish network entities such as a Mobile Switching Center (MSC), a Media Gateway (MGW) and the like, and only uses software programs to simulate the functions of each module, so that the difference with a real scene exists, and a test result can only be used as supplement and reference of a function test.
Secondly, the protocol adopted by the large-capacity caller is different from the communication standard;
manufacturers of high-capacity pagers optimize partial protocols in order to enable the pagers to achieve higher processing capacity, and particularly, the manufacturers are embodied on layer 2 and service plane protocols (such as Radio Link Control (RLC), Media Access Control (MAC), Frame Protocol (FP) and the like), only the most basic configuration and transmission functions are reserved, so that the protocol used by the high-capacity pagers is inconsistent with a communication standard, and the defect greatly limits application scenarios of the high-capacity pagers and limits the high-capacity pagers in performance pressure tests.
Disclosure of Invention
The embodiment of the invention provides a system and a method for equipment testing, which are used for improving the effectiveness of a test result of access network equipment.
A system for device testing, the system comprising: the device comprises tested access network equipment, a terminal, a core network CN and a high-capacity caller; the terminal is connected with the tested access network equipment, and the tested access network equipment is connected with the CN and the high-capacity caller; wherein,
the high-capacity caller is used for simulating a plurality of terminals to initiate service requests to the tested access network equipment; simulating the CN to process the service request forwarded by the tested access network equipment;
the terminal is used for initiating a service request to the tested access network equipment;
the tested access network equipment is used for receiving the service request initiated by the terminal and the service request initiated by the high-capacity caller; forwarding the service request initiated by the terminal to the CN, and forwarding the service request initiated by the high-capacity caller to the high-capacity caller;
and the CN is used for processing the service request forwarded by the tested access network equipment.
A method for equipment test is applied to a system comprising tested access network equipment, a terminal, a Core Network (CN) and a high-capacity caller, wherein the terminal is connected with the tested access network equipment, and the tested access network equipment is connected with the CN and the high-capacity caller; the method comprises the following steps:
the high-capacity caller simulates a plurality of terminals to initiate service requests to the tested access network equipment; the terminal initiates a service request to the tested access network equipment;
the tested access network equipment receives the service request initiated by the terminal and the service request initiated by the high-capacity caller; forwarding the service request initiated by the terminal to a core network CN, and forwarding the service request initiated by the high-capacity caller to the high-capacity caller;
the high-capacity caller simulates CN to process the service request forwarded by the tested access network equipment; and the CN processes the service request forwarded by the tested access network equipment.
In the invention, the tested access network equipment is connected with a terminal, the tested access network equipment is also connected with a CN and a high-capacity calling device, and the high-capacity calling device simulates a plurality of terminals to initiate service requests to the tested access network equipment; the terminal initiates a service request to the tested access network equipment; the tested access network equipment receives a service request initiated by a terminal and a service request initiated by the high-capacity caller; the service request initiated by the terminal is forwarded to a core network CN, and the service request initiated by a high-capacity calling device is forwarded to the high-capacity calling device; the high-capacity caller simulates CN to process the service request forwarded by the tested access network equipment; and the CN processes the service request forwarded by the tested access network equipment. Therefore, in the system, the high-capacity caller and the real terminal simultaneously initiate service requests to the tested access network equipment, the high-capacity caller can realize that a plurality of UE are on line simultaneously, and the real terminal can realize the real service flow in the current network environment, so that the test environment is closer to the application environment of the mobile communication network, and the effectiveness of testing the access network equipment can be further improved.
Drawings
FIG. 1 is a diagram of a test configuration under a real scenario in the prior art;
FIG. 2 is a diagram of a test configuration under a simulation scenario in the prior art;
fig. 3A is a schematic diagram of an Iu-Flex network structure in the embodiment of the present invention;
FIG. 3B is a schematic diagram of a system according to an embodiment of the present invention;
FIG. 3C is a schematic structural diagram of another system according to an embodiment of the present invention;
FIG. 3D is a schematic diagram of another system configuration provided by the embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method provided by an embodiment of the present invention;
FIG. 5 is a schematic diagram of a test flow in an embodiment of the invention.
Detailed Description
In order to improve the effectiveness of testing access Network equipment, the embodiment of the invention provides a system for equipment testing, wherein the system is provided with two sets of testing environments, and the access Network equipment to be tested is connected with a real terminal/Core Network (CN) in one set of testing environment; under another set of test environment, the tested access network equipment is connected with a large-capacity calling device for simulating a terminal/core network.
The invention combines the function and the performance pressure test scene by adopting the Iu-Flex technology, realizes the advantage complementation of reality and a simulation environment under the condition of not needing to carry out special modification on the access network equipment (such as a base station or an RNC), and keeps the consistency with the current network environment to the maximum extent in the aspects of network structure, telephone traffic model, user distribution and the like. The Iu-Flex technology is an extension of the A-Flex technology, and is a concept of introducing Iu resource pools.
Before the 3GPP protocol R5 release, the sharing requirements of the network were not considered, and an access network device could only be controlled by one core network node. In order to meet the requirement of core network disaster tolerance, an Iu-Flex technology is introduced, an access network device is connected with a plurality of core network nodes (such as MSC server/SGSN), a terminal is allocated to different core network nodes according to a load balancing principle, a network structure is shown in fig. 3A, fig. 3A takes a CS domain service as an example, when a PS domain is used, a Media Gateway (MGW) in fig. 3A needs to be replaced by a Serving GPRS Support Node (SGSN), and a Mobile Switching Center (MSC) needs to be replaced by a Gateway GPRS Support Node (GGSN).
The introduction of Iu-Flex technology enables a single access network device to communicate with multiple CN nodes, making it possible to coexist real and simulated network environments on one access network device. After supporting the function, a NAS Node Selection Function (NNSF) is introduced at the same time, the access Network device selects a specific node from the connected CN nodes for routing an initial non-access stratum message, the node allocates a Network Resource Identifier (Network Resource Identifier, NRI) of the UE, the NRI is used for identifying a CN node number, the NRI is a part of a Temporary Network device Identifier (TMSI)/Packet Temporary Mobile subscriber Identity (P-TMSI), and the access Network device can route an uplink message to different CN nodes according to the NRI value, thereby achieving the purpose of routing a user to different CNs.
Referring to fig. 3B, the system for device testing provided in the embodiment of the present invention specifically includes an access network device 30 to be tested, an actual terminal 31, an actual Core Network (CN)32, and a large-capacity caller 33; the terminal 31 is connected with the tested access network equipment 30, and the tested access network equipment 30 is connected with the CN32 and the large-capacity caller 33; wherein,
a large-capacity caller 33, configured to simulate multiple terminals to initiate a service request to the tested access network device 30; simulating the CN to process the service request forwarded by the tested access network equipment 30;
a terminal 31, configured to initiate a service request to the tested access network device 30;
the tested access network equipment 30 is used for receiving a service request initiated by the terminal 31 and a service request initiated by the high-capacity caller 33; the service request initiated by the terminal 31 is forwarded to the CN32, and the service request initiated by the high-capacity caller 33 is forwarded to the high-capacity caller 33;
CN32, for processing the service request forwarded by the tested access network device 30.
Here, the UE simulated by the high-capacity caller 33 needs to be connected to the simulated core network because the high-capacity caller 33 simulates UE initiated service, unlike real service, optimizes part of the protocol, especially embodied in layer 2 and service plane protocols (such as RLC, MAC, FP, etc.), and only retains the most basic configuration and transmission functions, which also causes the protocol used by the high-capacity caller 33 to be inconsistent with the communication standard, so that the simulated UE may fail to access the service on the real core network 32, and vice versa. Since the real terminal 31 and the large-capacity caller 33 employ different protocols, the real terminal 31 can be assigned only under the real CN 32.
Further, the large-capacity caller 33 is used to: simulating a plurality of terminals to initiate a service request carrying a preconfigured NRI to the tested access network device 30, wherein the preconfigured NRI is an NRI in the temporary user identification code generated according to the first temporary user identification code generation rule;
the terminal 31 is used for: initiating a service request carrying NRI to the tested access network equipment 30; the NRI is an NRI in the temporary user identifier allocated to the terminal 31 by the CN32 according to the second temporary user identifier generation rule; the second temporary user identification code generation rule is different from the first temporary user identification code generation rule;
the access network device under test 30 is configured to: after receiving the service request, according to the information of the preconfigured first temporary user identification code generation rule and the second temporary user identification code generation rule, determining that the NRI carried in the service request is the NRI in the temporary user identification code generated according to the first temporary user identification code generation rule or the NRI in the temporary user identification code allocated to the terminal 31 according to the second temporary user identification code generation rule;
the service request is forwarded to the high-capacity caller 33 if NRI in the temporary user identifier generated according to the first temporary user identifier generation rule, and forwarded to CN32 if NRI in the temporary user identifier allocated to the terminal 31 according to the second temporary user identifier generation rule.
In the invention, the temporary user identification code is TMSI or P-TMSI.
Further, the procedure of allocating the temporary user identifier to the terminal 31 by the CN32 is as follows:
the terminal 31 is also configured to: before initiating a service request to the tested access network device 30, initiating a location update request to the tested access network device 30;
the tested access network device 30 is further configured to forward the location update request to the CN 32; after receiving the temporary user identifier of the terminal 31 sent by the CN32, sending the temporary user identifier to the terminal 31;
the CN32 is further configured to, after receiving the location update request, allocate a temporary user identifier to the terminal 31 according to the second temporary user identifier generation rule, and send the allocated temporary user identifier to the tested access network device 30.
Further, the method for initiating and processing the service request by the high-capacity caller 33 is as follows:
the high capacity pager 33 is also used to: loading a test script, wherein the test script comprises a service initiating parameter and a service processing parameter; the service initiating parameter is a parameter for limiting a method for the simulation terminal to initiate the service request, and the service processing parameter is a parameter for limiting a method for the simulation CN to process the service request;
after the test script is loaded successfully, a plurality of terminals are simulated to initiate service requests to the tested access network device 30 according to the service initiation parameters in the test script, and a CN is simulated to process the service requests forwarded by the tested access network device 30 according to the service processing parameters in the test script.
The module for simulating CN in the high-capacity caller 33 is provided with a communication protocol that is the same as or simplified from the communication protocol used by each node in the real CN, so that the high-capacity caller 33 can execute the behavior of the corresponding node according to the set communication protocol, and the high-capacity caller 33 can simulate CN to process the service request forwarded by the access network device 30 under test according to the communication protocol.
Further, parameters in the test script may be configured, specifically as follows:
the high capacity pager 33 is used to: after the test script is loaded successfully and before a plurality of terminals are simulated to initiate a service request to the tested access network equipment 30 to execute the test script, receiving configuration information of service initiation parameters in the test script, and setting values of the service initiation parameters according to the configuration information;
the service initiation parameters comprise service model parameters, call interval parameters, service holding time parameters and user distribution model parameters; the service model parameter is a parameter representing the type of a service request initiated by the simulation terminal; the call interval parameter is a parameter representing a time interval for the analog terminal to initiate a service request; the service holding time parameter is a parameter representing the duration of the service request initiated by the analog terminal; the user distribution model parameter is a parameter representing the time distribution situation of the service request initiated by the simulation terminal.
Further, in order to make the testing environment closer to the actual mobile communication network, the terminal 31 is required to initiate a service request to the tested access network device 30 after the service request initiated by the high-capacity caller 33 is successfully established, which is specifically as follows:
the terminal 31 is used for: after the high-capacity caller 33 simulates a plurality of terminals to initiate a service request to the tested access network device 30 and the service requested by the service request is successfully established, a trigger signal for initiating the service request is received, and the service request is initiated to the tested access network device 30 according to the trigger signal. Here, whether the service request initiated by the large-capacity caller 33 is successfully established is manually observed, a trigger signal for initiating the service request is input to the terminal 31 after the service is successfully established, and after the terminal 31 receives the trigger signal for initiating the service request, the corresponding service request is initiated to the tested access network device 30 according to the trigger signal.
The service request in the present invention may include a voice service request, a data transmission service request, and the like.
Further, as shown in fig. 3C, the access network device 30 under test is a Radio Network Controller (RNC), the system further includes a base station 34, and the terminal 31 is connected to the RNC through the base station 34; and the large-capacity caller 33 also simulates the behavior of the base station, for example, forwarding messages between the analog terminal and the RNC; the large-capacity caller 33 simulates a base station and a terminal at an IUB port, and simulates CN at an IU port; the RNC adopts Iu-Flex technology to connect with CN32 and CN simulated by the large-capacity caller 33; the RNC is directly connected with the MGW in the CN32, and the MGW is connected with the MSC and further communicated with the whole CN; correspondingly, the RNC is directly connected with the analog MGW in the CN simulated by the high-capacity caller 33, and the analog MGW is connected with the analog MSC and further communicated with the whole simulated CN; of course, the RNC may also be directly connected to the SGSN in CN32, and the SGSN is connected to the GGSN, and further connected to the entire CN; correspondingly, the RNC is directly connected to the simulated SGSN in the CN simulated by the high capacity caller 33, and the simulated SGSN is connected to the simulated GGSN, and further connected to the entire simulated CN.
As shown in fig. 3D, the access network device under test 30 may also be a base station. The high-capacity caller 33 simulates a terminal at a UU port and simulates a CN at an IU port; the base station is connected with CN32 and CN simulated by the large-capacity caller 33 by adopting Iu-Flex technology; the base station can be directly connected with SGSN in CN32, the SGSN is connected with GGSN, and further connected with the whole CN; correspondingly, the base station is directly connected with a simulation SGSN in the CN simulated by the large-capacity calling device 33, and the simulation SGSN is connected with the simulation GGSN and further communicated with the whole simulation CN; of course, the base station can also be directly connected with the MGW in CN32, and the MGW is connected with the MSC and further connected with the whole CN; correspondingly, the base station is directly connected with the analog MGW in the CN simulated by the large-capacity caller 33, and the analog MGW is connected with the analog MSC and further communicated with the whole analog CN.
Referring to fig. 4, the present invention also provides a method for device testing based on the system shown in fig. 3, comprising the steps of:
step 40: the high-capacity caller simulates a plurality of terminals to initiate service requests to the tested access network equipment; the real terminal initiates a service request to the tested access network equipment;
step 41: the tested access network equipment receives a real service request initiated by a terminal and a service request initiated by a high-capacity caller; forwarding a service request initiated by a real terminal to a real CN, and forwarding a service request initiated by a high-capacity calling device to the high-capacity calling device;
step 42: the high-capacity caller simulates CN to process the service request forwarded by the tested access network equipment; the real CN processes the service request forwarded by the tested access network equipment.
And finally, determining whether the service process is correctly executed, whether the tested access network equipment has hardware faults and the like through manual observation to obtain a test result.
Further, in step 40, the high-capacity caller simulates a plurality of terminals to initiate a service request carrying a preconfigured NRI to the tested access network device, where the preconfigured NRI is an NRI in the temporary user identifier generated according to the first temporary user identifier generation rule; the real terminal initiates a service request carrying NRI to the tested access network equipment, wherein the NRI is the NRI in the temporary user identification code distributed to the real terminal by the CN according to the second temporary user identification code generation rule;
correspondingly, in step 41, after receiving the service request, the tested access network device determines, according to the information of the preconfigured first temporary user identification code generation rule and the preconfigured second temporary user identification code generation rule, that the NRI carried in the service request is the NRI in the temporary user identification code generated according to the first temporary user identification code generation rule or the NRI in the temporary user identification code allocated to the real terminal according to the second temporary user identification code generation rule;
if the NRI in the temporary user identification code generated according to the first temporary user identification code generation rule is the NRI in the temporary user identification code, the service request is forwarded to a high-capacity calling device, and if the NRI in the temporary user identification code distributed to the real terminal according to the second temporary user identification code generation rule is the NRI in the temporary user identification code, the service request is forwarded to the real CN.
Further, before initiating a service request to the tested access network device, the real terminal may initiate a location update request to the tested access network device;
the tested access network equipment forwards the position updating request to a real CN;
after receiving the location updating request, the real CN allocates a temporary user identification code to the real terminal according to a second temporary user identification code generation rule, and sends the allocated temporary user identification code to the tested access network equipment;
and after receiving the real temporary user identification code of the real terminal sent by the real CN, the tested access network equipment sends the temporary user identification code to the real terminal.
Furthermore, before the high-capacity caller simulates a plurality of terminals to initiate service requests to the tested access network equipment, the high-capacity caller can load a test script, and the test script comprises service initiating parameters and service processing parameters; the service initiating parameter is a parameter for limiting a method for the simulation terminal to initiate the service request, and the service processing parameter is a parameter for limiting a method for the simulation CN to process the service request;
correspondingly, in step 40, after the test script is successfully loaded, the high-capacity caller simulates a plurality of terminals to initiate service requests to the tested access network equipment according to the service initiation parameters in the test script; in step 42, the high-capacity caller simulates the CN to process the service request forwarded by the tested access network device according to the service processing parameters in the test script.
Further, after the high-capacity caller successfully loads the test script and before simulating a plurality of terminals to initiate service requests to the tested access network equipment, the high-capacity caller receives configuration information of service initiation parameters in the test script and sets values of the service initiation parameters according to the configuration information; the configuration information may be manually entered;
the service initiation parameter comprises a service model parameter, a call interval parameter, a service holding time parameter and a user distribution model parameter; the service model parameter is a parameter representing the type of a service request initiated by the simulation terminal; the call interval parameter is a parameter representing a time interval for the analog terminal to initiate a service request; the service holding time parameter is a parameter representing the duration of the service request initiated by the analog terminal; the user distribution model parameter is a parameter representing the time distribution situation of the service request initiated by the simulation terminal.
Further, in step 40, the real terminal simulates a plurality of terminals at the high-capacity caller to initiate a service request to the tested access network device, and after the service requested by the service request is successfully established, receives a trigger signal for initiating the service request, and initiates the service request to the tested access network device according to the trigger signal. Here, whether the service request initiated by the large-capacity caller is successfully established or not is manually observed, a trigger signal for initiating the service request is input to the terminal after the service is successfully established, and the terminal initiates a corresponding service request to the tested access network equipment according to the trigger signal after receiving the trigger signal for initiating the service request.
In the method, the tested access network equipment can be an RNC (radio network controller), and a real terminal communicates with the RNC through a base station; or the tested access network equipment is a base station.
The method is described in detail below:
compared with the commonly used function and performance test environment, the hybrid test environment for the RNC requires the following work to be performed in focus:
firstly, configuring adjacent office information and routing information of a real CN and a CN simulated by a large-capacity caller on an RNC respectively, and configuring the corresponding relation between a TMSI/P-TMSI generation rule and the CN, so as to ensure that simulated UE is allocated under the simulated CN and real UE is allocated under the real CN. The adjacent station information includes a signaling point code, an adjacent station ID, and the like.
Secondly, the TMSI/P-TMSI generation rule is modified at the simulated CN side, and the databases of the UE and the CN are modified on a large-capacity calling device, so that the TMSI/P-TMSI generation rule is consistent with the configuration of the RNC.
Thirdly, modifying a routing script of a Message Transfer Part Layer3-BroadBand (MTP 3B) and a Signaling Connection Control Protocol (SCCP) in the caller so as to be unified with the configuration of the RNC; and checking the signaling message in the script to ensure that the simulation service can still be normally established after the network structure is changed. The routing script is the routing configuration of the RNC and the large-capacity caller, both can normally communicate only when matched, and the configuration is needed at SCCP and MTP3 layers.
Fourthly, analyzing the test requirements (including the analysis of the scale of the commercial network users and the traffic model), and determining the service model of the simulation environment and the test method in the real environment.
The test flow chart in the hybrid test environment is shown in fig. 5, and the steps are described as follows:
step 1: building a test environment as shown in fig. 3C, and introducing a developed and debugged test script into the high-capacity caller;
step 2: configuring parameters on an RNC, opening an Iu-Flex function on the RNC, and setting a corresponding relation between a TMSI/P-TMSI generation rule and a CN;
and step 3: starting a caller and loading a test script;
and 4, step 4: checking whether the test script is loaded successfully or not, if not, returning to the step 3 to continue to load again; if successful, go to step 5;
and 5: activating a real cell to enable a real terminal to perform cell residence;
step 6: checking whether the real UE is successfully resided in the cell, if so, going to step 7, otherwise, returning to step 5 to perform cell residence again;
and 7: setting parameters of a service model (the proportion of services such as CS/PS/HSDPA and the like), a call interval, service holding time and a user distribution model (such as Gaussian distribution/uniform distribution and the like) on a large-capacity calling device;
and 8: triggering a large-capacity calling device to initiate a large-user-quantity simulated service request (such as a 10 ten thousand/20 ten thousand/40 universal user model);
and step 9: observing the establishment result of the simulation service, determining whether the establishment of the simulation service is successful, if so, performing step 11, otherwise, performing step 10;
step 10: after the service failure problem is analyzed and solved, returning to the step 8 to trigger the high-capacity caller to initiate the simulation service again;
step 11: under the background that the simulation service is successfully established, triggering a real terminal to initiate a real service request;
step 12: observing and determining whether the service flow is correctly executed, whether the RNC has hardware faults and the like, and then recording a test result;
step 13: a detailed analysis is performed and a test report is written.
In conclusion, the beneficial effects of the invention include:
in the system for testing the equipment, the access network equipment to be tested is connected with the terminal, the access network equipment to be tested is also connected with the CN and the high-capacity calling device, and the high-capacity calling device simulates a plurality of terminals to initiate service requests to the access network equipment to be tested; the terminal initiates a service request to the tested access network equipment; the tested access network equipment receives a service request initiated by a terminal and a service request initiated by the high-capacity caller; the service request initiated by the terminal is forwarded to a core network CN, and the service request initiated by a high-capacity calling device is forwarded to the high-capacity calling device; the high-capacity caller simulates CN to process the service request forwarded by the tested access network equipment; and the CN processes the service request forwarded by the tested access network equipment. And finally, determining whether the service process is correctly executed, whether the tested access network equipment has hardware faults and the like through manual observation to obtain a test result. Therefore, in the system, the high-capacity caller and the real terminal simultaneously initiate service requests to the tested access network equipment, the high-capacity caller can realize that a plurality of UE are on line simultaneously, and the real terminal can realize the real service flow in the current network environment, so that the test environment is closer to the application environment of the mobile communication network, and the effectiveness of the test on the access network equipment can be improved.
The invention constructs a real and simulation combined test environment, and fully utilizes the advantages that a large-capacity calling set can simulate a large amount of terminals and a telephone traffic model/user distribution model can be flexibly set, so that the terminal scale and the telephone traffic model in a laboratory are consistent with the actual mobile communication network. Meanwhile, the use of real network elements (including CN/NodeB/UE) overcomes the defect that a large-capacity calling device is inconsistent with a communication network in the aspects of protocols, software and the like to a certain extent.
The invention reduces the requirements on the terminal and manpower in the test process, combines the function and the performance test, and can simultaneously find the problem of the tested access network equipment in the function and performance pressure test. Through statistics, after popularization and application in a laboratory, the number of problems discovered by a test line per month increases by about 15%.
The invention uses NRI value to distinguish real CN and high-capacity calling device simulated CN by introducing Iu-Flex technology, only needs to modify configuration on the tested access network equipment, realizes the enclosure test of real and simulated environment for the tested access network equipment, and avoids the interference when two sets of test environments work simultaneously.
In the test of the mixed scene, the establishment sequence of the service, the user model and the telephone traffic model can be modified on line according to the requirement. Meanwhile, the test scene in the invention is extended and developed, so that the real UE can communicate under the simulated CN and the simulated UE can communicate under the real CN, and the real and simulated mixed cross test environment can be realized at the IUB/IU interface, so as to expand the test range of a laboratory. The concrete description is as follows:
the UE simulated by the large-capacity pager is connected to the simulated core network, the real UE is connected to the real core network, because the large-capacity pager simulates the UE to initiate a service, which is different from the real service, part of protocols are optimized, particularly embodied on a layer 2 protocol and a service plane protocol (such as RLC, MAC, FP and the like), only the most basic configuration and transmission functions are reserved, and the protocol used by the large-capacity pager is inconsistent with a communication standard, so that the simulated UE possibly fails if the UE is connected to the real core network, but as long as the protocol used by the large-capacity pager (including the UE, NB and CN) is more perfect, the protocol is the same as the real protocol, the real UE can be connected to the core network simulated by the large-capacity pager, and the UE simulated by the large-capacity pager is connected to the real core network.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (16)
1. A system for device testing, the system comprising: the device comprises tested access network equipment, a terminal, a core network CN and a high-capacity caller; the terminal is connected with the tested access network equipment, and the tested access network equipment is connected with the CN and the high-capacity caller; wherein,
the high-capacity caller is used for simulating a plurality of terminals to initiate service requests to the tested access network equipment; simulating the CN to process the service request forwarded by the tested access network equipment;
the terminal is used for initiating a service request to the tested access network equipment;
the tested access network equipment is used for receiving the service request initiated by the terminal and the service request initiated by the high-capacity caller; forwarding the service request initiated by the terminal to the CN, and forwarding the service request initiated by the high-capacity caller to the high-capacity caller;
and the CN is used for processing the service request forwarded by the tested access network equipment.
2. The system of claim 1, wherein the high volume caller is to: simulating a plurality of terminals to initiate a service request carrying a pre-configured Network Resource Identifier (NRI) to the tested access network equipment, wherein the pre-configured NRI is the NRI in the temporary user identification code generated according to the first temporary user identification code generation rule;
the terminal is used for: initiating a service request carrying NRI to the tested access network equipment; the NRI is the NRI in the temporary user identification code distributed to the terminal by the CN according to a second temporary user identification code generation rule;
the tested access network device is configured to: after receiving a service request, determining that NRI carried in the service request is NRI in a temporary user identification code generated according to a first temporary user identification code generation rule or NRI in a temporary user identification code allocated to the terminal according to a second temporary user identification code generation rule according to information of a first temporary user identification code generation rule and a second temporary user identification code generation rule which are configured in advance;
if the NRI in the temporary user identification code generated according to the first temporary user identification code generation rule is the NRI in the temporary user identification code, the service request is forwarded to the high-capacity calling device, and if the NRI in the temporary user identification code distributed to the terminal according to the second temporary user identification code generation rule is the NRI in the temporary user identification code, the service request is forwarded to the CN.
3. The system of claim 2, wherein the terminal is further configured to:
before initiating a service request to the tested access network equipment, initiating a location update request to the tested access network equipment;
the tested access network equipment is also used for forwarding the location updating request to the CN; after receiving the temporary user identification code of the terminal sent by the CN, sending the temporary user identification code to the terminal;
and the CN is also used for distributing the temporary user identification code to the terminal according to a second temporary user identification code generation rule after receiving the position updating request and sending the distributed temporary user identification code to the tested access network equipment.
4. The system of claim 1, wherein the high volume caller is further configured to:
loading a test script, wherein the test script comprises a service initiating parameter and a service processing parameter; the service initiating parameter is a parameter for limiting a method for initiating a service request by a simulation terminal, and the service processing parameter is a parameter for limiting a method for processing a service request by a simulation CN;
after the test script is loaded successfully, simulating a plurality of terminals to initiate service requests to the tested access network equipment according to the service initiation parameters in the test script, and simulating a CN to process the service requests forwarded by the tested access network equipment according to the service processing parameters in the test script.
5. The system of claim 4, wherein the high volume caller is to:
after the test script is loaded successfully and before the test script is executed, receiving configuration information of service initiation parameters in the test script, and setting values of the service initiation parameters according to the configuration information;
the service initiation parameter comprises a service model parameter, a call interval parameter, a service holding time parameter and a user distribution model parameter; the service model parameter is a parameter representing the type of a service request initiated by the simulation terminal; the call interval parameter is a parameter representing the time interval of the service request initiated by the analog terminal; the service holding time parameter is a parameter representing the duration of the service request initiated by the analog terminal; the user distribution model parameter is a parameter representing the time distribution condition of the service request initiated by the simulation terminal.
6. The system of claim 1, wherein the terminal is to:
after the high-capacity caller simulates a plurality of terminals to initiate service requests to the tested access network equipment and the service requested by the service requests is successfully established, a trigger signal for initiating the service requests is received, and the service requests are initiated to the tested access network equipment according to the trigger signal.
7. The system according to any of claims 1-6, wherein said tested access network device is a radio network controller, RNC, the system further comprising a base station, and said terminal is connected to said tested access network device through said base station.
8. The system of any of claims 1-6, wherein the access network device under test is a base station.
9. A method for equipment test is characterized in that the method is applied to a system comprising tested access network equipment, a terminal, a core network CN and a high-capacity caller, wherein the terminal is connected with the tested access network equipment, and the tested access network equipment is connected with the CN and the high-capacity caller; the method comprises the following steps:
the high-capacity caller simulates a plurality of terminals to initiate service requests to the tested access network equipment; the terminal initiates a service request to the tested access network equipment;
the tested access network equipment receives the service request initiated by the terminal and the service request initiated by the high-capacity caller; forwarding the service request initiated by the terminal to a core network CN, and forwarding the service request initiated by the high-capacity caller to the high-capacity caller;
the high-capacity caller simulates CN to process the service request forwarded by the tested access network equipment; and the CN processes the service request forwarded by the tested access network equipment.
10. The method of claim 9, wherein the high capacity caller emulating multiple terminals initiating service requests to a tested access network device comprises: the high-capacity caller simulates a plurality of terminals to initiate a service request carrying a pre-configured Network Resource Identifier (NRI) to the tested access network equipment, wherein the pre-configured NRI is the NRI in the temporary user identifier generated according to the first temporary user identifier generation rule;
the terminal initiating a service request to the tested access network equipment comprises: the terminal initiates a service request carrying NRI to the tested access network equipment; the NRI is the NRI in the temporary user identification code distributed to the terminal by the CN according to a second temporary user identification code generation rule;
the tested access network equipment receives the service request initiated by the terminal and the service request initiated by the high-capacity caller; forwarding the service request initiated by the terminal to the CN, and forwarding the service request initiated by the high-capacity caller to the high-capacity caller comprises:
after receiving a service request, the tested access network equipment determines that NRI carried in the service request is NRI in a temporary user identification code generated according to a first temporary user identification code generation rule or NRI in a temporary user identification code distributed to the terminal according to a second temporary user identification code generation rule according to information of a first temporary user identification code generation rule and a second temporary user identification code generation rule which are configured in advance;
if the NRI in the temporary user identification code generated according to the first temporary user identification code generation rule is the NRI in the temporary user identification code, the service request is forwarded to the high-capacity calling device, and if the NRI in the temporary user identification code distributed to the terminal according to the second temporary user identification code generation rule is the NRI in the temporary user identification code, the service request is forwarded to the CN.
11. The method of claim 10, further comprising:
the terminal initiates a location updating request to the tested access network equipment before initiating a service request to the tested access network equipment;
the tested access network equipment forwards the location updating request to the CN;
after receiving the location updating request, the CN allocates a temporary user identification code to the terminal according to a second temporary user identification code generation rule, and sends the allocated temporary user identification code to the tested access network equipment;
and after receiving the temporary user identification code of the terminal sent by the CN, the tested access network equipment sends the temporary user identification code to the terminal.
12. The method of claim 9, before the high capacity caller simulates a plurality of terminals initiating service requests to the tested access network device, further comprising: the high-capacity caller loads a test script, wherein the test script comprises a service initiating parameter and a service processing parameter; the service initiating parameter is a parameter for limiting a method for initiating a service request by a simulation terminal, and the service processing parameter is a parameter for limiting a method for processing a service request by a simulation CN;
the high-capacity caller simulates a plurality of terminals to initiate service requests to the tested access network equipment and comprises the following steps: after the high-capacity caller successfully loads the test script, simulating a plurality of terminals to initiate service requests to the tested access network equipment according to the service initiation parameters in the test script;
the simulating CN of the high-capacity caller for processing the service request forwarded by the tested access network equipment comprises the following steps: and the high-capacity caller simulates CN to process the service request forwarded by the tested access network equipment according to the service processing parameters in the test script.
13. The method of claim 12, wherein after successfully loading the test script and before executing the test script, further comprising:
the high-capacity caller receives configuration information of the service initiation parameter in the test script and sets the value of the service initiation parameter according to the configuration information;
the service initiation parameter comprises a service model parameter, a call interval parameter, a service holding time parameter and a user distribution model parameter; the service model parameter is a parameter representing the type of a service request initiated by the simulation terminal; the call interval parameter is a parameter representing the time interval of the service request initiated by the analog terminal; the service holding time parameter is a parameter representing the duration of the service request initiated by the analog terminal; the user distribution model parameter is a parameter representing the time distribution condition of the service request initiated by the simulation terminal.
14. The method of claim 9, wherein the terminal initiating a service request to the tested access network device comprises:
the terminal simulates a plurality of terminals to initiate service requests to the tested access network equipment by the high-capacity caller, and after the service requested by the service requests is successfully established, the terminal receives a trigger signal for initiating the service requests and initiates the service requests to the tested access network equipment according to the trigger signal.
15. A method according to any of claims 9-14, wherein the access network device under test is a radio network controller, RNC, with which the terminal communicates via a base station.
16. The method of any of claims 9-14, wherein the access network device under test is a base station.
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Application publication date: 20120215 |