CN102448098A - Physical layer test system and method based on ARM (advanced RISC (reduced instruction set computer) machine) and DSP (digital signal processing) multi-core structure - Google Patents
Physical layer test system and method based on ARM (advanced RISC (reduced instruction set computer) machine) and DSP (digital signal processing) multi-core structure Download PDFInfo
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Abstract
The invention relates to a test technology for a wireless communication system and particularly relates to a physical layer test system and method based on an ARM (advanced RISC (reduced instruction set computer) machine) and DSP (digital signal processing) multi-core structure. The system comprises a control device, a signal source, a vector signal analyzer and a tested terminal. The method comprises a plurality of steps. According to the physical layer test system and method disclosed by the invention, codes of a physical layer in the field of wireless communication can be tested alone under the situation that upper-layer protocol codes are absent, development and test time can be shorted, test cost can be reduced and the automatic test of the codes of the physical layer can be conveniently and quickly realized.
Description
Technical field
The present invention relates to the wireless communication system measuring technology, particularly based on the physical layer test macro and the method for ARM and DSP coenocytism.
Background technology
A wireless terminal (or claiming user equipment (UE)) can be divided into physical layer (PHY), data link layer and radio resource control layer (RRC) on agreement, data link layer comprises media access control layer (MAC) and Radio Link control (rlc layer) again.Physical layer is positioned at the bottom of protocol model, mainly accomplishes channel coding/decoding, and physical channel shines upon and separates processes such as mapping and modulation and demodulation; Physical layer receives data and signaling from primitive between the MAC securing layer and through physical connection to the peer-entities transmission or from peer-entities.The MAC layer is positioned on the physical layer, mainly accomplishes data framing, error detection and repeating transmission control, processes such as resource allocation; Data link course physical layer is sent interlayer primitive and is obtained from physical layer.
Based on the embedded system of ARM and DSP coenocytism, MAC layer and above layer identification code thereof operate in ARM nuclear, and the program of PHY layer relates to the large amount of complex calculating process, and real-time is required than higher, operate in DSP nuclear; DSP obtains the interlayer primitive from MAC through HPI HPI from ARM, thereby triggers a series of data transmit-receive processes of DSP, realizes that terminal equipment is mutual with the interlayer of network equipment peer-entities.
The physical layer test is a kind of software test, mainly tests the characteristic of physical layer software the following aspects: the consistency of physical layer software and protocol specification; Physical layer software is to the Transceiver Features of physical channel; Physical layer software is to the measurement characteristics of physical channel; Performances such as the synchronous adjustment of physical layer software real-time and physical layer software, frequency deviation adjustment, power control.
Traditional test mainly is divided into two stages to physical layer, and the phase I is at initial stage of development, the unit testing of institute's development module being carried out by the developer; Second stage then is the integration testing that after integrated protocol code, under the real base station environment, carries out signaling mode.The former can only test certain module, can't verify the reliability and the real-time of whole system; The latter then needs the integrated upper-layer protocol program and the ripe network equipment, and this often can't satisfy condition at the procedure development initial stage; During whole version issue, need carry out regression test separately to physical layer, present method of testing is more intense, with high costs and labor intensive to the dependence of protocol code, can't realize extensive automation regression test.
Summary of the invention
The technical problem that the present invention solved is to provide a kind of physical layer code based on ARM and DSP coenocytism to carry out functional test, performance test and automation ergodic test macro and method, and does not need the integrated upper-layer protocol program and the ripe network equipment.
For overcoming the above problems, the present invention provides a kind of physical layer test macro based on ARM and DSP coenocytism, and is as shown in Figure 1, comprising:
Control appliance is used to connect terminal to be tested, signal source and VSA, further comprises:
The signal source control module is used for according to the test case needs signal source being controlled;
Data analysis module is used to realize the analysis to upstream data;
The serial port drive module is used to realize control and the management to serial ports;
Main control module is realized the control of testing process and the management of test case;
Response contents and the desired value man-machine interface that the responses match module is used to mate physical layer is used to select test case and shows test results;
Signal source through the instruction that general-purpose interface bus GPIB or lan interfaces LAN accept control appliance, is sent the required downlink radio-frequency signal of test;
VSA is accepted the radiofrequency signal that send at terminal to be tested, realizes the sampling to upward signal, is connected to control appliance through general-purpose interface bus GPIB or lan interfaces LAN;
Terminal to be tested comprises ARM and DSP nuclear, and the program that runs on ARM nuclear is responsible for interlayer primitive is encapsulated and splits, and primitive is transmitted to DSP through HPI HPI; Move physical layer procedures to be tested.
For overcoming the above problems, the present invention provides said a kind of physical layer method of testing based on ARM and DSP coenocytism, is suitable for the test of non-signaling mode, comprising:
S101: the relevant primitive of test case is stored in control appliance, in control appliance, selects required test case;
S102: control appliance utilizes GPIB or LAN interface to realize the Remote configuration to signal source according to the demand of test case, makes the needed radiofrequency signal of its transmission test example;
S103: control appliance utilizes GPIB or LAN interface to realize the Remote configuration to VSA according to the demand of test case, makes it can realize the automatic sampling to upward signal;
S104: the control appliance utilization is sent initialization command to terminal to be tested;
S105: terminal ARM to be tested receives that a plurality of kernels and the external equipment to terminal to be tested carries out initialization behind the initialization command;
S106: indication is accomplished to the initialization of control appliance feedback after accomplishing initialization in terminal to be tested;
S107: control appliance sends the required order of test case to terminal to be tested;
S108:ARM receives that this order back checks the completeness of order according to sign and length end to end; And removal identifies end to end; ARM is issued to DSP to realize the triggering of physical layer inter-related task with this order;
Order receives the related physical channel content from signal source to S109:DSP according to ARM, and the result is fed back to ARM with the form that responds;
S110: VSA detects the quality of uplink signal of DSP, and to control appliance end detection feedback result;
S111:ARM sends to the control appliance end after adding the content of response end to end;
S112: the control appliance end can notify VSA to carry out the sampling of IQ data;
S113: control appliance determines the particular content of bar order according to the content of response;
S114: repeating step S107-S113, order and the response transmitting-receiving required up to test case finish.
The present invention compared with prior art; Can under the situation that does not have the upper-layer protocol code, realize independent test, shorten the development and testing time the wireless communication field physical layer code; Reduce testing cost, and realized the automation regression test of physical layer code quickly and easily.
Description of drawings
Fig. 1 is the physical layer test system structure figure that the present invention is based on ARM and DSP coenocytism;
Fig. 2 is the physical layer test macro preferred implementation structure chart that the present invention is based on ARM and DSP coenocytism;
Fig. 3 is another preferred implementation structure chart of physical layer test macro that the present invention is based on ARM and DSP coenocytism;
Fig. 4 is the physical layer method of testing preferred implementation flow chart that the present invention is based on ARM and DSP coenocytism;
Fig. 5 is the employed order encapsulation of data of an embodiment of the invention form sketch map.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, a kind of physical layer test macro and method based on ARM and DSP coenocytism of the present invention done further explain below in conjunction with accompanying drawing and execution mode.
A kind of physical layer test macro of the present invention based on ARM and DSP coenocytism, as shown in Figure 1, comprising:
Control appliance is used to connect terminal to be tested, signal source and VSA, and it further comprises:
The signal source control appliance is used for according to the test case needs signal source being controlled;
Data analysis module is used to realize the analysis to upstream data;
The serial port drive module is used to realize control and the management to serial ports;
Main control module is realized the control of testing process and the management of test case;
Response contents and the desired value man-machine interface that the responses match module is used to mate physical layer is used to select test case and shows test results;
Signal source through the instruction that general-purpose interface bus GPIB or lan interfaces LAN accept control appliance, is sent the required downlink radio-frequency signal of test;
VSA is accepted the radiofrequency signal that send at terminal to be tested, realizes the sampling to upward signal, is connected to control appliance through general-purpose interface bus GPIB or lan interfaces LAN;
Terminal to be tested comprises ARM and DSP nuclear, and the program that runs on ARM nuclear is responsible for interlayer primitive is encapsulated and splits, and primitive is transmitted to DSP through HPI HPI; Move physical layer procedures to be tested.
Alternatively, the DSP at said terminal to be tested nuclear has more than two or two;
Preferably, replace the serial port drive module with USB serial port drive module in the said control appliance, be used to realize control and management the USB mouth; Between control appliance and terminal to be tested, also comprise serial ports/USB mouth converting unit, serial ports/USB mouth converting unit is connected through the USB mouth with control appliance, is connected through serial ports with terminal to be tested; As shown in Figure 2.
Preferably, use comprehensive test instrument to replace VSA and signal source, be connected with control appliance, send and receive the radiofrequency signal at terminal to be tested through general-purpose interface bus GPIB or LAN; Increase the protocol adaptation module at control appliance, link to each other with serial ports/USB mouth converting unit; As shown in Figure 3, it is suitable for the test of signaling mode.
Said comprehensive test instrument possesses the function of system simulator, signal generator and terminal signaling analyzer, sophisticated functionss such as support call foundation, release and paging, power control, terminal radio frequency consistency test.
Preferably, said control appliance also comprises tracking module, is used for real-time storage and prints the LOG information from test terminal ARM and DSP.
A kind of physical layer method of testing based on ARM and DSP coenocytism of the present invention comprises numerous embodiments, is described below respectively:
Testing process to the single test case of physical layer code is as shown in Figure 4, comprising:
S101: the relevant primitive of test case is stored in control appliance, in control appliance, selects required test case;
S102: control appliance utilizes GPIB or LAN interface to realize the Remote configuration to signal source according to the demand of test case, makes the needed radiofrequency signal of its transmission test example;
S103: control appliance utilizes GPIB or LAN interface to realize the Remote configuration to VSA according to the demand of test case, makes it can realize the automatic sampling to upward signal;
S104: control appliance sends initialization command to terminal to be tested;
S105: terminal ARM to be tested receives that a plurality of kernels and the external equipment to terminal to be tested carries out initialization behind the initialization command;
S106: indication is accomplished to the initialization of control appliance feedback after accomplishing initialization in terminal to be tested;
S107: control appliance sends the required order of test case to terminal to be tested;
S108:ARM receives that this order back checks the completeness of order according to sign and length end to end; And removal identifies end to end; ARM is issued to DSP to realize the triggering of physical layer inter-related task with this order;
The completeness of said inspection order or response is whether the data length between the sign end to end of review engagement coincide with the length information in the header;
For example: employed order encapsulation format is as shown in Figure 5, and 0xAAAA is filled in beginning most of order, and 0x5555 is filled in the last of order; Follow closely after the 0xAAAA is the header of fixing 12 byte length; Comprise frame number, pattern, state, primitive sign, Reserved and length mark; Wherein length information is meant the data length that does not comprise 0xAAAA, 0x5555 and header, and unit is BYTE; Through this mode, receiving terminal can be checked the completeness of order or response easily.
Order receives the related physical channel content from signal source to S109:DSP according to ARM, and the result is fed back to ARM with the form that responds;
S110: VSA detects the quality of uplink signal of DSP, and to control appliance end detection feedback result;
S111:ARM sends to the control appliance end after adding the content of response end to end;
S112: the control appliance end can notify VSA to carry out the sampling of IQ data;
S113: control appliance determines the particular content of bar order according to the content of response;
S114: repeating step S107-S113, order and the response transmitting-receiving required up to test case finish;
Preferably; Carry out serial ports/USB mouth format conversion between control appliance and the terminal to be tested; S104, S107 control appliance are mail to terminal information to be tested convert the serial ports form to by the USB mouth, the information that S106, S111 terminal to be tested is mail to control appliance converts USB mouth form to by serial ports;
Above method of testing can be tested the various time slot configuration of physical layer according to the test case of design, resource distribution, and the situation of up-downgoing ratio and various transformat combination is carried out the ergodic test;
But for highstrung situation of time; Because the restriction of serial ports speed; The control appliance end can't guarantee can related command be sent to terminal to be tested at official hour, so propose another execution mode, the relevant primitive of test case is stored in the ARM memory at terminal to be tested in advance; Flow process by ARM control test case comprises:
S201-S203: S101-S103 is identical with step;
S204: the test case that control appliance sends the automatic control type to terminal to be tested is numbered, and sends the beginning test command to terminal to be tested simultaneously;
S205: terminal ARM to be tested accomplishes the initialization operation of each external equipment and DSP kernel;
S206:ARM extracts the next command of test case and is issued to DSP through the HPI mouth in the test case storehouse;
Order receives the related physical channel content from signal source to S207:DSP according to ARM, and the result is fed back to ARM with the form that responds;
Whether decision responds to the control appliance transmission S208:ARM according to response contents;
S209: repeating step S206-S208 finishes up to test case.
Above-mentioned method of testing has been owing to saved serial ports transmitting-receiving link, and institute thinks that the real-time of DSP program tests the condition that provides.
Above-mentioned method of testing is suitable for the test of non-signaling mode; But test for signaling mode; Can use comprehensive test instrument to replace signal source and VSA, and take protocol adaptation at the control appliance end, said protocol adaptation is used to produce the data of up transmission and resolves the downlink data from comprehensive test instrument; Utilize GPIB to realize Long-distance Control, can realize the full test of terminal signaling pattern to be tested comprehensive test instrument.
A kind of physical layer automated testing method based on ARM and DSP coenocytism of the present invention comprises:
S301: according to all test cases of testing requirement selection needs test in the test case storehouse;
S302: select automation regression test mode;
S303: execution in step S101-S114 or step S201-S209;
S304: this test case of storage print execution result;
S305: control desk extracts next test case from the test tabulation;
S306: repeated execution of steps S303-S305 accomplishes up to all test case tests.
Through directly disposing the relevant parameter of MAC, can realize test to the various functions of physical layer, performance; By technical scheme provided by the invention, can comparatively conveniently realize independent test, and not need the related content of upper-layer protocol, and can carry out automatic test easily physical layer code.
Execution mode that the present invention lifts or embodiment have carried out further detailed description to the object of the invention, technical scheme and advantage; Institute is understood that; Abovely lift execution mode or embodiment is merely preferred implementation of the present invention; Not in order to restriction the present invention, all within spirit of the present invention and principle to any modification that the present invention did, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the physical layer test macro based on ARM and DSP coenocytism is characterized in that, comprising:
Control appliance is used to connect terminal to be tested, signal source and VSA;
Signal source through the instruction that general-purpose interface bus GPIB or lan interfaces LAN accept control appliance, is sent the required downlink radio-frequency signal of test;
VSA is accepted the radiofrequency signal that send at terminal to be tested, realizes the sampling to upward signal, is connected to control appliance through general-purpose interface bus GPIB or lan interfaces LAN;
Terminal to be tested comprises ARM and DSP nuclear, and the program that runs on ARM nuclear is responsible for interlayer primitive is encapsulated and splits, and primitive is transmitted to DSP through HPI HPI; Move physical layer procedures to be tested;
Said control appliance further comprises:
The signal source control module is used for according to the test case needs signal source being controlled;
Data analysis module is used to realize the analysis to upstream data;
The serial port drive module is used to realize control and the management to serial ports;
Main control module is realized the control of testing process and the management of test case;
The responses match module is used to mate the response contents and the desired value of physical layer, and man-machine interface is used to select test case and shows test results.
2. physical layer test macro according to claim 1 is characterized in that, the DSP nuclear at said terminal to be tested has two or more.
3. physical layer test macro according to claim 1 is characterized in that, replaces the serial port drive module with USB serial port drive module in the said control appliance, is used to realize control and the management to the USB mouth; Between control appliance and terminal to be tested, also comprise serial ports/USB mouth converting unit, serial ports/USB mouth converting unit is connected through the USB mouth with control appliance, is connected through serial ports with terminal to be tested.
4. like the said physical layer test macro of claim 3; It is characterized in that; Use comprehensive test instrument to replace VSA and signal source, comprehensive test instrument is connected with control appliance through general-purpose interface bus GPIB or LAN, sends and receive the radiofrequency signal at terminal to be tested; Increase the protocol adaptation module at control appliance, link to each other with serial ports/USB mouth converting unit.
5. like the arbitrary said physical layer test macro of claim 1-4, it is characterized in that said control appliance also comprises tracking module, be used for real-time storage and print LOG information from test terminal ARM and DSP.
6. the physical layer method of testing based on ARM and DSP coenocytism is characterized in that, comprising:
S101: the relevant primitive of test case is stored in control appliance, in control appliance, selects required test case;
S102: control appliance utilizes GPIB or LAN interface to realize the Remote configuration to signal source according to the demand of test case, makes the needed radiofrequency signal of its transmission test example;
S103: control appliance utilizes GPIB or LAN interface to realize the Remote configuration to VSA according to the demand of test case, makes it can realize the automatic sampling to upward signal;
S104: the control appliance utilization is sent initialization command to terminal to be tested;
S105: terminal ARM to be tested receives that a plurality of kernels and the external equipment to terminal to be tested carries out initialization behind the initialization command;
S106: indication is accomplished to the initialization of control appliance feedback after accomplishing initialization in terminal to be tested;
S107: control appliance sends the required order of test case to terminal to be tested;
S108:ARM receives that this order back checks the completeness of order according to sign and length end to end; And removal identifies end to end; ARM is dealt into DSP to realize the triggering of physical layer inter-related task with this order;
Order receives the related physical channel content from signal source to S109:DSP according to ARM, and the result is fed back to ARM with the form that responds;
S110: VSA detects the quality of uplink signal of DSP, and to control appliance end detection feedback result;
S111:ARM sends to the control appliance end after adding the content of response end to end;
S112: the control appliance end can notify VSA to carry out the sampling of IQ data;
S113: control appliance determines the particular content of bar order according to the content of response;
S114: repeating step S107-S113, order and the response transmitting-receiving required up to test case finish.
7. like the said physical layer method of testing of claim 6; Be suitable for the test of non-signaling mode; It is characterized in that; Carry out serial ports/USB mouth format conversion between control appliance and the terminal to be tested, S104, S107 control appliance are mail to terminal information to be tested convert the serial ports form to by the USB mouth, the information that S106, S111 terminal to be tested is mail to control appliance converts USB mouth form to by serial ports.
8. like the said physical layer method of testing of claim 6, it is characterized in that the relevant primitive of test case is stored in the ARM memory at terminal to be tested in advance, and the flow process by ARM control test case specifically comprises:
S201-S203: S101-S103 is identical with step;
S204: the test case that control appliance sends the automatic control type to terminal to be tested is numbered, and sends the beginning test command to terminal to be tested simultaneously;
S205: terminal ARM to be tested accomplishes the initialization operation of each external equipment and DSP kernel;
S206:ARM extracts the next command of test case and is dealt into DSP through the HPI mouth in the test case storehouse;
Order receives the related physical channel content from signal source to S207:DSP according to ARM, and the result is fed back to ARM with the form that responds;
Whether decision responds to the control appliance transmission S208:ARM according to response contents;
S209: repeating step S205-S208 finishes up to test case.
9. like the said physical layer method of testing of claim 7; It is characterized in that; For the test of signaling mode, can use comprehensive test instrument to replace signal source and VSA, and take protocol adaptation at the control appliance end; Said protocol adaptation is used to produce the data of up transmission and resolve the downlink data from comprehensive test instrument, utilizes GPIB to realize the Long-distance Control to comprehensive test instrument.
10. based on the physical layer automated testing method of ARM and DSP coenocytism, it is characterized in that, comprising:
S301: according to all test cases of testing requirement selection needs test in the test case storehouse;
S302: select automation regression test mode;
S303: execution in step S101-S114 or step S201-S209;
S304: this test case of storage print execution result;
S305: control desk extracts next test case from the test tabulation;
S306: repeated execution of steps S303-S305 accomplishes up to all test case tests.
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| CN112601244A (en) * | 2020-12-02 | 2021-04-02 | 支付宝(杭州)信息技术有限公司 | Air interface test method, device and equipment of wireless communication network |
| CN112601244B (en) * | 2020-12-02 | 2022-10-04 | 支付宝(杭州)信息技术有限公司 | Air interface test method, device and equipment of wireless communication network |
| CN113505030A (en) * | 2021-06-16 | 2021-10-15 | 青岛本原微电子有限公司 | Digital signal processor testing device |
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