CN104618929A - System and device for achieving 4G LTE air monitoring - Google Patents
System and device for achieving 4G LTE air monitoring Download PDFInfo
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- CN104618929A CN104618929A CN201410831649.8A CN201410831649A CN104618929A CN 104618929 A CN104618929 A CN 104618929A CN 201410831649 A CN201410831649 A CN 201410831649A CN 104618929 A CN104618929 A CN 104618929A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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Abstract
The invention discloses a system and a device for achieving 4G LTE air monitoring. The system comprises an antenna, a 4G LTE air monitoring unit and a computer. The antenna comprises an antenna unit and a radio frequency connector. The 4G LTE air monitoring unit comprises an LTE air demodulation module, a control module and a communication module. The communication module is connected with the control module and sends demodulation results of an LTE upstream receiving machine and an LTE downstream receiving machine to the computer for data storage, processing and presentation in a wireless connection or wired connection mode. The computer comprises a user interaction module, a data processing module and a data storage module. The user interaction module comprises an operation mode control module and a data presentation output module. By means of the system and the method, the real communication condition between a 4G LTE network and a 4G LTE terminal can be monitored.
Description
Technical field
The present invention relates to 4G LTE communication technical field, particularly a kind of 4G of realization LTE eats dishes without rice or wine the system of signal monitoring and device.
Background technology
According to market statistics, by 2014 the end of the year whole world overwhelming majority of countries and area all opened 4G LTE network, more than at least 300 4G LTE network drop into actual commercial.Wherein, more than 10% of commercial 4G LTE network is TD-LTE pattern, and all the other are FDD LTE pattern.
In order to improve downstream transmission speed and wireless frequency spectrum utilization ratio, 4G LTE radio open uses time division technique (TDMA), frequency division technique (FDMA) and empty point technology (SDMA) simultaneously.
The core technology that LTE adopts is OFDM (OFDM), its general principle to need the serial data stream of transmission to be decomposed into several parallel sub-stream pairs compared with low rate, they be modulated to separately on mutually orthogonal subcarrier, the data rate finally synthesizing output is identical with the speed before serial data Traffic Decomposition again.The main advantage of OFDM is that the availability of frequency spectrum is high, can eliminate or reduce intersymbol interference, adopts frequency-hopping method to select orthogonal sub-carriers to have good anti-arrowband interference performance, adopts adaptive modulation scheme to obtain optimum balance between the availability of frequency spectrum and the error rate.
The core net (CN) of LTE is a network based on all-IP, the flattening more of whole LTE network framework.Compared with 3G system, LTE wireless access network is without RNC, and more wireless access functions realize in LTE base station (eNodeB), comprise physical layer function, MAC, RLC, PDCP function, RRC function, scheduling of resource and RRM, wireless access control, and mobile management.
Therefore, 4G LTE communication system has the performance more excellent than 3G, be also simultaneously one more than the more complicated communication system of 3G.From the angle of mobile operator, the construction of 4G LTE network and quality optimization will be faced with new challenges:
(1) due in 4G system without RNC, consider from the angle of the 4G network optimization, the collection of up signaling and data is without the wireline interface of standard, and requirement directly can collect the uplink signaling data of different 4G base station producer from 4G radio open.
(2) traditional 4G driver test system uses special 4G drive test terminal to test, the main downstream signal coverage condition of test 4G network and the performance of 4G network bearer, accurately can not reflect that the real user of the commercial mobile phone of 4G is experienced.
(3) traditional 4G network optimization is divided into foreground to optimize and backstage optimization.Wherein, foreground is optimized and is mainly carried out rough improvement according to the result of 4G drive test to the wireless coverage of 4G base station and performance; Backstage is optimized the network management data mainly exported based on 4G base station producer and is carried out adjustment correction to the Key Performance Indicator of network.Foreground optimize to optimize with backstage general by two independently Optimized Service team independently perform, and to eat dishes without rice or wine the complexity of technology due to 4G, the location of 4G network problem and solve and often need in conjunction with drive test data and network management data, observes LTE simultaneously and to eat dishes without rice or wine uplink and downlink reciprocal process in section sometime.
(4) the basic speech business VoLTE of LTE is the voice solution being realized Service control by LTE network as service access, IMS network.The performance of VoLTE and Consumer's Experience, not only depend on LTE network performance, and be closely related with the performance of the commercial mobile phone of LTE.The process of LTE network, terminal and service needed long-term optimization and Continuous optimization.
Summary of the invention
The present invention mainly solves the problem run in the performance optimization of 4G LTE network, terminal and business, carrying out the objective actual communication situation presented between LTE network and LTE terminal by catching LTE uplink and downlink data from eating dishes without rice or wine simultaneously, any LTE network can not relied on or LTE terminal producer eats dishes without rice or wine independently to monitor to LTE.
For solving the problems of the technologies described above, the system that the embodiment of the present invention provides a kind of 4G of realization LTE to eat dishes without rice or wine to monitor and device are achieved in that
Realize the system that 4G LTE eats dishes without rice or wine to monitor, it is characterized in that, comprise antenna, 4G LTE eats dishes without rice or wine measurement mechanism and computer, wherein:
Described antenna comprises antenna element and radio frequency connector;
Described 4G LTE eats dishes without rice or wine measurement mechanism, comprises LTE and to eat dishes without rice or wine demodulation module, control module and communication module;
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver; Described radio-frequency module receives 4G LTE radio open signal by described radio frequency connector from described antenna element, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to described computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
User interactive module, data processing module and data memory module is comprised in described computer;
Described user interactive module comprises mode of operation control module and data present output module; Described mode of operation control module arranges described 4G LTE according to user's input and to eat dishes without rice or wine the mode of operation of measurement mechanism, and sends to described 4G LTE measurement mechanism of eating dishes without rice or wine to perform test control information by described communication module; Described data present output module with word or/and graphics mode shows described 4G LTE on the screen of described computer eats dishes without rice or wine the test data of measurement mechanism;
Described data processing module comprises LOG module and data analysis module; Described LOG module receives eat dishes without rice or wine 4G LTE that measurement mechanism sends of described 4G LTE and to eat dishes without rice or wine test data under the control of described mode of operation control module, is saved in described data memory module; Described data analysis module completes 4G LTE and to eat dishes without rice or wine the extraction of test data, calculating and associate, and carries out classification and the sequence of data according to the demand that described data present output module;
Described data memory module preserves the data that 4G LTE eats dishes without rice or wine after original test data and computational analysis on described computer.
Realize the system that 4G LTE eats dishes without rice or wine to monitor, it is characterized in that, comprise antenna, 4G LTE eats dishes without rice or wine measurement mechanism and computer, wherein:
Described antenna comprises antenna element and radio frequency connector;
Described 4G LTE eats dishes without rice or wine measurement mechanism, comprises LTE and to eat dishes without rice or wine demodulation module, control module, communication module and locating module;
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver; Described radio-frequency module receives 4G LTE radio open signal by described radio frequency connector from described antenna element, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to described computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
Described locating module to be eated dishes without rice or wine measurement mechanism geographical location information operationally for measuring described 4G LTE, and by described communication module, geographical location information is sent to described computer;
User interactive module, data processing module and data memory module is comprised in described computer;
Described user interactive module comprises mode of operation control module and data present output module; Described mode of operation control module arranges described 4G LTE according to user's input and to eat dishes without rice or wine the mode of operation of measurement mechanism, and sends to described 4G LTE measurement mechanism of eating dishes without rice or wine to perform test control information by described communication module; Described data present output module with word or/and graphics mode shows described 4G LTE on the screen of described computer eats dishes without rice or wine the test data of measurement mechanism;
Described data processing module comprises LOG module and data analysis module; Described LOG module receives eat dishes without rice or wine 4G LTE that measurement mechanism sends of described 4G LTE and to eat dishes without rice or wine test data and geographical location information under the control of described mode of operation control module, is saved in described data memory module; Described data analysis module completes 4G LTE and to eat dishes without rice or wine the extraction of test data, calculating and associate, and carries out classification and the sequence of data according to the demand that described data present output module;
Described data memory module preserves the data that 4G LTE eats dishes without rice or wine after original test data and computational analysis on described computer.
Realize the system that 4G LTE eats dishes without rice or wine to monitor, it is characterized in that, comprise antenna, 4G LTE eats dishes without rice or wine measurement mechanism and computer, wherein:
Described antenna comprises antenna element and radio frequency connector;
Described 4G LTE eats dishes without rice or wine measurement mechanism, comprises LTE and to eat dishes without rice or wine demodulation module, control module, communication module, locating module and memory module;
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver; Described radio-frequency module receives 4G LTE radio open signal by described radio frequency connector from described antenna element, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to described computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
Described locating module to be eated dishes without rice or wine measurement mechanism geographical location information operationally for measuring described 4G LTE, and by described communication module, geographical location information is sent to described computer;
Described memory module is used for preserving original test data when described 4G LTE eats dishes without rice or wine measurement mechanism work;
User interactive module, data processing module and data memory module is comprised in described computer;
Described user interactive module comprises mode of operation control module and data present output module; Described mode of operation control module arranges described 4G LTE according to user's input and to eat dishes without rice or wine the mode of operation of measurement mechanism, and sends to described 4G LTE measurement mechanism of eating dishes without rice or wine to perform test control information by described communication module; Described data present output module with word or/and graphics mode shows described 4G LTE on the screen of described computer eats dishes without rice or wine the test data of measurement mechanism;
Described data processing module comprises LOG module and data analysis module; Described LOG module receives eat dishes without rice or wine 4G LTE that measurement mechanism sends of described 4G LTE and to eat dishes without rice or wine test data and geographical location information under the control of described mode of operation control module, is saved in described data memory module; Described data analysis module completes 4G LTE and to eat dishes without rice or wine the extraction of test data, calculating and associate, and carries out classification and the sequence of data according to the demand that described data present output module;
Described data memory module preserves the data that 4G LTE eats dishes without rice or wine after original test data and computational analysis on described computer.
Realize the 4G LTE that 4G LTE eats dishes without rice or wine to monitor to eat dishes without rice or wine a measurement mechanism, it is characterized in that, comprise LTE and to eat dishes without rice or wine demodulation module, control module and communication module, wherein:
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver;
Described radio-frequency module receives 4G LTE radio open signal by radio frequency connector from antenna, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to outer computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents.
Realize the 4G LTE that 4G LTE eats dishes without rice or wine to monitor to eat dishes without rice or wine a measurement mechanism, it is characterized in that, comprise LTE and to eat dishes without rice or wine demodulation module, control module, communication module and locating module, wherein:
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver;
Described radio-frequency module receives 4G LTE radio open signal by radio frequency connector from antenna, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to outer computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
Described locating module to be eated dishes without rice or wine measurement mechanism geographical location information operationally for measuring described 4G LTE, and by described communication module, geographical location information is sent to outer computer.
Realize the 4G LTE that 4G LTE eats dishes without rice or wine to monitor to eat dishes without rice or wine a measurement mechanism, it is characterized in that, comprise LTE and to eat dishes without rice or wine demodulation module, control module, communication module, locating module and memory module, wherein:
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver;
Described radio-frequency module receives 4G LTE radio open signal by radio frequency connector from antenna, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to outer computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
Described locating module to be eated dishes without rice or wine measurement mechanism geographical location information operationally for measuring described 4G LTE, and by described communication module, geographical location information is sent to outer computer;
Described memory module is used for preserving original test data when described 4G LTE eats dishes without rice or wine measurement mechanism work.
The technical scheme provided from the above embodiment of the present invention, the present invention is by the technical innovation of soft and hardware, traditional driver test system of 4G LTE network is promoted to the cooperate optimization system of network, terminal and business, by gathering from 4G LTE radio open, analyze uplink and downlink signals simultaneously, the wireless communication status that the reflection 4G LTE carrying out objective eats dishes without rice or wine, reaches quick position 4G LTE and to eat dishes without rice or wine the effect of problem.Test macro and device thus the 4G LTE providing a kind of Novel convenient for network, terminal manufacturer and business development business eats dishes without rice or wine.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a 4G LTE tradition driver test system;
Fig. 2 is that the present invention realizes 4G LTE and to eat dishes without rice or wine the schematic diagram of an embodiment of the system of monitoring;
Fig. 3 is that the present invention realizes 4G LTE and to eat dishes without rice or wine the schematic diagram of another embodiment of the system of monitoring;
Fig. 4 is that the present invention realizes 4G LTE and to eat dishes without rice or wine the schematic diagram of another embodiment of the system of monitoring.
Embodiment
The system that the embodiment of the present invention provides a kind of 4G of realization LTE to eat dishes without rice or wine to monitor and device.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments, the embodiment of the present invention is described in further detail.
A kind of feasible 4G LTE eats dishes without rice or wine in test macro scheme, and " drive test software " can be utilized to add traditional driver test system of " drive test terminal ", for the failture evacuation of 4G LTE network, assessment, optimization and maintenance.Here drive test software refers to Windows or the Linux application software run on computers, support that the speech under mobile network is dialed, data service, value-added service and MOS indoor and outdoors test, support that various network sweep generator (Scanner) is tested, support user based on the self-defined test event of L3 signaling and can customize test event display icon and audio files, realize event in test process audible alarm and ground physics and chemistry display.Data readback in drive test software support test process and mark; Possess playback function flexibly, support that playback speed can multistagely regulate to playback, arbitrfary point playback for test data forward and inverse, during playback, all windows of opening of same data all keep association.Drive test terminal mainly refers to special drive test terminal, or some can open engineering mode thus the business terminal being connected with drive test software, can being controlled by drive test software.Such as, common on market LTE special drive test terminal manufacturer comprises: the Hai Si of French Sequans, U.S. Qualcomm and China, create the companies such as firm video signal; Can be comprised by the business terminal that drive test software controls: the LTE mobile phone terminal of the certain model of the mobile phone manufacturer production such as Samsung, Huawei.Fig. 1 shows the schematic diagram of this traditional driver test system.
From 4G LTE network, terminal, service feature test and the actual demand of quality optimization, this scheme only supports the gather and analysis of 4G LTE network downstream signal, and 4G LTE cannot be observed to eat dishes without rice or wine the up-downgoing reciprocal process of signal simultaneously; In addition, not all LTE business terminal is all supported to be controlled by drive test software, and therefore, this technical scheme lacks versatility and convenience.
Fig. 2 shows the present invention and realizes 4G LTE and to eat dishes without rice or wine the schematic diagram of an embodiment of monitoring system, and arrow wherein mainly shows that 4G LTE eats dishes without rice or wine Monitoring Data being flowed to by signal when these equipment and computer interactive.
As shown in Figure 2, comprise antenna, 4G LTE eats dishes without rice or wine measurement mechanism and computer.
Wherein, antenna is a kind of converter, and it is transformed into the guided wave of transmission above-the-line promotion the electromagnetic wave propagated in unbounded medium (normally free space), or carries out contrary conversion, is be used for launching or receiving electromagnetic parts in wireless device.Comprise 4G LTE mobile communication, every all dependence antenna utilizing electromagnetic wave to carry out transmission of information is to carry out work.Can be divided into transmitting antenna and reception antenna by job specification antenna, general antenna all has invertibity, namely both can be used as transmitting antenna with common antenna, also can be used as reception antenna.Omnidirectional antenna and directional antenna can be divided into by directive antenna.Long-wave antenna, medium-wave antenna, short-wave antenna, ultrashort wave antenna, microwave antenna etc. can be divided into by operation wavelength antenna.Antenna used in the present invention, eats dishes without rice or wine to monitor owing to just carrying out 4G LTE, does not need to send signal, therefore belong to reception antenna; Secondly, 4G LTE can be operated in from tens of 700MHz ~ 3700MHz different radio bands in the world, and therefore 4G LTE monitoring device reception antenna used of eating dishes without rice or wine can both be supported these frequency ranges; Finally, 4G LTE system defines three class antenna technology: MIMO, beam forming and deversity scheme, therefore used in the present invention 4G LTE reception antenna can be 1 or many (as 4 or 8) antenna elements, and adopts omnidirectional antenna or directional antenna according to listen requirement.The radio frequency connector of antenna is used for that the wireless signal received is sent to 4G LTE and eats dishes without rice or wine measurement mechanism, conventional SMA type or N-type coaxial connector in mobile communications, employing is threaded, and has that reliability is high, shock resistance is strong, the feature such as machinery and excellent electrical properties.Select suitable antenna, concerning promote 4G LTE in the present invention eat dishes without rice or wine monitoring system and device robustness, improve the sensitivity of eating dishes without rice or wine to monitor all extremely important.
4G LTE measurement mechanism of eating dishes without rice or wine comprises LTE and to eat dishes without rice or wine demodulation module, control module and communication module.Wherein, LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver.
The LTE radio-frequency module of eating dishes without rice or wine in demodulation module comprises one or more independently radio frequency reception channel, and the parameter such as gain, frequency that each passage can realize independent tuning and each passage all can independently control, and can meet the various demands that 4G LTE eats dishes without rice or wine to monitor.The functional modules such as preposition protective circuit, band pass filter, local oscillator, frequency mixer, amplifier, attenuator are included in each independently radio frequency reception channel; not only can protect radio-frequency module static discharge or large-signal input time from damage, the key technical index such as working frequency range, dynamic range, sensitivity, noise factor all realize according to the requirement of system design of 4G LTE.For example, the sensitivity of TD-LTE system protocol requirement under 20MHz bandwidth is-101.5dBm, and the radio-frequency module in the present invention should be not less than this standard when designing.In addition, in TD-LTE system, uplink and downlink works is in similar frequency bands, and therefore the configuration parameter of the working frequency range of one or more radio-frequency channels is identical; And in FDD LTE system, up-downgoing is operated in different frequency range respectively, at this moment radio-frequency module should comprise the independent radio frequency receive path of more than 2, is wherein no less than 1 radio-frequency channel for receiving upward signal, is no less than 1 radio-frequency channel in addition for receiving downstream signal.
LTE eats dishes without rice or wine to comprise analog to digital converter in LTE uplink receiver in demodulation module or LTE downlink receiver and (is called for short A/D converter or ADC, English: Analog to Digital Converter), the bandpass signal that radio frequency module exports or baseband signal are sampled, and complete the conversion from analog signal to digital signal.The key technical indexes of ADC comprises resolution, switching rate, quantization error and the linearity etc., and sample value exports and adopts parallel interface or serial line interface.Because the transmission rate of 4G LTE signal when 20MHz bandwidth after IFFT computing reaches 30.72Mbps, the switching rate of ADC is generally 2 ~ 8 times of this transmission rate in actual applications, i.e. 61.44 ~ 245.76Mbps, calculate with resolution 12bit, single pass output speed reaches as high as 3Gbps, therefore generally adopts the differential serial way of output.ADC manufacturer main in the market comprises the ADI of the U.S., Texas Instrument (TI), insult Li Erte (Linear) and beautifully to believe (Maxim) etc., for the device that ADI company model is AD6649, the resolution of AD6649 is 14bit, switching rate maximum support 250Mbps, can meet the requirement of the present invention to ADC performance.
LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation.Wherein, L1 is physical layer (Physical Layer), mainly comprises PRACH, PUCCH, PUSCH tri-channels, processes LTE user uplink Stochastic accessing respectively, up signaling controls and upstream data shares transmission; L2 is media access control layer, mainly comprises each sublayer of MAC, RLC and PDCP; L3 is operation layer, mainly comprises RRC, NAS signaling sublayer and IP data Layer.
The content that the demodulation of LTE uplink receiver exports mainly comprises: the control informations such as the classification of LTE terminal, customer identification information, Stochastic accessing, power control, cell reselection, BLER, RB take, MCS, dispatch situation, handoff procedure, HARQ and uplink throughput; The L2 header of MAC, RLC, PDCP; The complete signaling of RRC, NAS; IP bag and business datum.
LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation.Wherein, L1 is physical layer (Physical Layer), mainly comprises the channels such as PBCH, PCFICH, PHICH, PDCCH, PDSCH, processes LTE down-going synchronous respectively and transmits with Cell searching, downlink signaling control and downlink data is shared; L2 is media access control layer, mainly comprises each sublayer of MAC, RLC and PDCP; L3 is operation layer, mainly comprises RRC, NAS signaling sublayer and IP data Layer.
The content that the demodulation of LTE downlink receiver exports mainly comprises: the network informations such as community ID, mode of operation, operating frequency, bandwidth, special subframe type; The service cell information such as RSSI, RSRP, RSRQ, SINR; Information of adjacent cells; CQI, PMI, RI, ACK, NACK, BLER, MIMO, RB take, the control information such as DCI, MCS, HARQ and downlink throughput capacity; The complete signaling of RRC, NAS; IP bag and business datum.
Concrete, the function of LTE uplink receiver and LTE downlink receiver can be realized by the mode of software and hardware combining.
Because 4G LTE network provides the peak rate of up 50Mbps, descending 100Mbps, network delay is low, and require that chain of command postpones to be less than 100ms, user plane latency is less than 5ms; In demodulating process, not only to carry out the algorithm calculating comprising matrix inversion, the accurate complexity of Turbo decoding, also need to complete the interactive controlling between the parsing of chain of command message and up-downgoing in time.Therefore, usually FPGA(field programmable gate array is used in specific implementation, Field Programmable Gate Array) and/or DSP(digital signal processor) device, by programming realization L1(physical layer) demodulation, or the demodulation of part L2 function; And on the CPU of ARM or PowerPC framework, realize the demodulation of part or all of L2 function and L3.For improving calculation processing power, general use multinuclear ARM or multinuclear PowerPC, adopts multiple CPU core jointly to share the mode of a large amount of demodulation tasks.In addition, for meeting the low requirement of L2 and L3 processing delay, embedded real-time operating system must be run on ARM or PowerPC, not only to ensure outside to CPU, from the timely response of the interruption of FPGA and/or DSP, and guarantee to carry out effective task scheduling when cooperating between multiple CPU core.The Virtex series of Xilinx and the Altera of mainly U.S. of the supplier of FPGA, Xilinx, the Stratix Series FPGA of Altera can meet the computing demand of 4G LTE upstream or downstream L1 demodulation in the market; The supplier of DSP is the Texas Instrument (TI) of the U.S. and Freescale (Freescale) mainly, and also there is multi-core DSP product commercial separately in Liang Jia manufacturer.In addition, multinuclear PowerPC uses for many years in mobile communications industry, is the conventional device of 4G LTE base station product; And multinuclear ARM is due to the feature such as low in energy consumption, extensibility is strong, also start progressively to be used widely in 4G LTE field of researching and developing.Embedded real-time operating system supplier comprises U.S. WindRiver and ENEA company of Sweden, and the VxWorks of WindRiver, the OSE embedded real-time operating system of ENEA company are products best in industry always; Except VxWorks and OSE, built-in Linux is also a kind of selection.
LTE eats dishes without rice or wine the control module in demodulation module, and major function is the control command sended over by communication module receiving computer, controls the working frequency range that radio-frequency module selects 4G LTE; Setting 4G LTE eats dishes without rice or wine the mode of operation of measurement mechanism, make to be operated in the state such as frequency sweep mode, monitoring mode, and producing corresponding LTE up-downgoing sequential according to mode of operation, control LTE uplink receiver and LTE downlink receiver complete the demodulation of L1, L2 and L3 respectively.When concrete reality, radio frequency controls generally directly to be driven by FPGA or DSP; The control of LTE uplink receiver and LTE downlink receiver is specifically related to the demodulation control of L1, L2 and L3, needs from computer, embedded type CPU to FPGA and/or DSP, in-order co-operation; From the aspect of embedded OS, this control module can be made up of one group of embedded driver, and each driver completes one or more specific controlling functions.
The communication module that LTE eats dishes without rice or wine in demodulation module, except computer is connected with control module, also completes the function demodulation result of LTE uplink receiver and LTE downlink receiver being sent to computer.Here output to the data format of computer, minimum time unit is 1ms, is also a TTI(or subframe in 4G LTE, Subframe) cycle.4G LTE system take TTI as base unit, and the fastest every 1ms carries out the wireless resource scheduling of upstream or downstream.Therefore, to eat dishes without rice or wine monitoring system and device as 4G LTE, need the control information after demodulation in every 1ms and the complete computer that is sent to of user data to present to carry out data storage, data processing and data.4G LTE eats dishes without rice or wine the connected mode of measurement mechanism and computer, and can be wired mode, also can be wireless mode.Wired mode can be USB(USB, Universal Serial BUS), PCIE(PCI Express), GbE(gigabit ethernet interface) etc.; Wireless mode can be a standard in bluetooth (Bluetooth), WiFi(IEEE 802.11) and the wireless connect technology such as WiFi Direct.
Also comprise computer in the present invention, this computer can be such as the PC of general x86 framework, also can adopt embedded system, as ARM framework.This computer can be the computer loading Windows sequence of maneuvers system, also can be other operating system, such as MAC OS sequence of maneuvers system, Linux sequence of maneuvers system etc., and various embedded OSs etc.
User interactive module, data processing module and data memory module is comprised in this computer.Wherein, user interactive module comprises mode of operation control module and data present output module, the problem of main process man-machine interaction.On the one hand, mode of operation control module arranges 4G LTE according to the selection of user and to eat dishes without rice or wine the mode of operation of measurement mechanism, and send to 4G LTE to eat dishes without rice or wine measurement mechanism control information by communication module, to start measurement mechanism, according to the tasks carrying test of user's setting; On the other hand, data present output module with word or/and graphics mode shows monitoring information of eating dishes without rice or wine on the screen of computer, can to eat dishes without rice or wine the original test data of measurement mechanism by 4G LTE, also can be through the analysis data after processing process.
Data processing module in computer comprises LOG module and data analysis module.LOG module receives eat dishes without rice or wine 4G LTE that measurement mechanism sends of 4G LTE and to eat dishes without rice or wine test data and geographical location information under the control of mode of operation control module, and is saved in the data memory module in computer; Data analysis module completes 4G LTE and to eat dishes without rice or wine the extraction of test data, calculating and associate, and carries out classification and the sequence of data according to the demand that data present output module.
Concrete, the user interactive module in computer and data processing module are all application software, such as, can be Windows program, MAC program or Linux program.Concrete programming language can be one or more in the conventional computer programming languages such as C, C++, C#, BASIC, JAVA.User interactive module wherein comprises UI(graphic interface) function, conventional UI developing instrument or kit can be used to realize, such as Visual Studio, Qt, Delphi, Eclipse etc.
Such as, the computer of Windows operating system realizes user interactive module and data processing module, user interactive module can use C Plus Plus to develop, and data processing module can use C language to develop, and unified use Visual Studio Integrated Development Tool.
Data memory module in computer mainly refers to the attached storage device on computer, can be common hard disk, and solid state hard disc at a high speed also can be external portable hard drive.Data memory module preserves the data that 4G LTE eats dishes without rice or wine after original test data and computational analysis on computers.
In addition, 4G LTE eats dishes without rice or wine can also increase locating module in measurement mechanism, for record 4G LTE eat dishes without rice or wine measurement mechanism work time geographical location information.Carry out 4G LTE on computers to eat dishes without rice or wine Analysis on monitoring data and in current, often need the technical parameter value measured and geographic location association to get up, to study network wireless coverage situation.
Concrete, this locating module can be one or more in the Chinese Big Dipper, GPS of America, Russian GLONASS, European Union GALILEO satellite positioning device.Can be implemented in 4G LTE eat dishes without rice or wine measurement mechanism work time, latitude and longitude coordinates value record is at that time got off.
4G LTE eats dishes without rice or wine to increase locating module in measurement mechanism can as shown in Figure 3, and signal main when arrow wherein mainly shows mutual between positioner and control module flows to.In addition, locating module is sent to computer by communication module geographical location information.
In addition, 4G LTE eats dishes without rice or wine can also have memory module in measurement mechanism.The major function of this memory module eats dishes without rice or wine measurement mechanism directly preserves original test data at 4G LTE, loses very important field testing data when using up to prevent the memory device space on outer computer.Because the problem of much eating dishes without rice or wine of 4G LTE is not easy reproduction very much, very high at the cost of field testing, this memory module can be enabled where necessary as a kind of standby functions.
As shown in Figure 4, being interconnected between described memory module and control module, can be specifically the high-speed processing apparatus such as solid state hard disc (SSD), FlashRAM, flash card (Flash Card).
No matter above-mentioned any embodiment, can to eat dishes without rice or wine monitoring 1 or multi-section 4G LTE terminal equipment from 4G LTE.And the data-handling capacity of measurement mechanism of can also being eated dishes without rice or wine by expansion 4G LTE, supports to monitor more simultaneously, to eat dishes without rice or wine monitoring requirements with the 4G LTE under satisfied different scene.
The system realized according to the present invention and appliance arrangement, typical application scenarios includes but not limited to: the network optimization of 4G LTE mobile operator; The service feature test of 4G LTE mobile operator; The base station testing of 4G LTE network equipment manufacturer; The commercial handset capability test of 4G LTE mobile terminal producer.
Although depict the embodiment of the present invention by embodiment, those of ordinary skill in the art know, the present invention has many distortion and change and do not depart from spirit of the present invention, and the claim appended by wishing comprises these distortion and change and do not depart from spirit of the present invention.
Claims (6)
1. realize the system that 4G LTE eats dishes without rice or wine to monitor, it is characterized in that, comprise antenna, 4G LTE eats dishes without rice or wine measurement mechanism and computer, wherein:
Described antenna comprises antenna element and radio frequency connector;
Described 4G LTE eats dishes without rice or wine measurement mechanism, comprises LTE and to eat dishes without rice or wine demodulation module, control module and communication module;
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver; Described radio-frequency module receives 4G LTE radio open signal by described radio frequency connector from described antenna element, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to described computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
User interactive module, data processing module and data memory module is comprised in described computer;
Described user interactive module comprises mode of operation control module and data present output module; Described mode of operation control module arranges described 4G LTE according to user's input and to eat dishes without rice or wine the mode of operation of measurement mechanism, and sends to described 4G LTE measurement mechanism of eating dishes without rice or wine to perform test control information by described communication module; Described data present output module with word or/and graphics mode shows described 4G LTE on the screen of described computer eats dishes without rice or wine the test data of measurement mechanism;
Described data processing module comprises LOG module and data analysis module; Described LOG module receives eat dishes without rice or wine 4G LTE that measurement mechanism sends of described 4G LTE and to eat dishes without rice or wine test data under the control of described mode of operation control module, is saved in described data memory module; Described data analysis module completes 4G LTE and to eat dishes without rice or wine the extraction of test data, calculating and associate, and carries out classification and the sequence of data according to the demand that described data present output module;
Described data memory module preserves the data that 4G LTE eats dishes without rice or wine after original test data and computational analysis on described computer.
2. realize the system that 4G LTE eats dishes without rice or wine to monitor, it is characterized in that, comprise antenna, 4G LTE eats dishes without rice or wine measurement mechanism and computer, wherein:
Described antenna comprises antenna element and radio frequency connector;
Described 4G LTE eats dishes without rice or wine measurement mechanism, comprises LTE and to eat dishes without rice or wine demodulation module, control module, communication module and locating module;
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver; Described radio-frequency module receives 4G LTE radio open signal by described radio frequency connector from described antenna element, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to described computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
Described locating module to be eated dishes without rice or wine measurement mechanism geographical location information operationally for measuring described 4G LTE, and by described communication module, geographical location information is sent to described computer;
User interactive module, data processing module and data memory module is comprised in described computer;
Described user interactive module comprises mode of operation control module and data present output module; Described mode of operation control module arranges described 4G LTE according to user's input and to eat dishes without rice or wine the mode of operation of measurement mechanism, and sends to described 4G LTE measurement mechanism of eating dishes without rice or wine to perform test control information by described communication module; Described data present output module with word or/and graphics mode shows described 4G LTE on the screen of described computer eats dishes without rice or wine the test data of measurement mechanism;
Described data processing module comprises LOG module and data analysis module; Described LOG module receives eat dishes without rice or wine 4G LTE that measurement mechanism sends of described 4G LTE and to eat dishes without rice or wine test data and geographical location information under the control of described mode of operation control module, is saved in described data memory module; Described data analysis module completes 4G LTE and to eat dishes without rice or wine the extraction of test data, calculating and associate, and carries out classification and the sequence of data according to the demand that described data present output module;
Described data memory module preserves the data that 4G LTE eats dishes without rice or wine after original test data and computational analysis on described computer.
3. realize the system that 4G LTE eats dishes without rice or wine to monitor, it is characterized in that, comprise antenna, 4G LTE eats dishes without rice or wine measurement mechanism and computer, wherein:
Described antenna comprises antenna element and radio frequency connector;
Described 4G LTE eats dishes without rice or wine measurement mechanism, comprises LTE and to eat dishes without rice or wine demodulation module, control module, communication module, locating module and memory module;
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver; Described radio-frequency module receives 4G LTE radio open signal by described radio frequency connector from described antenna element, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to described computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
Described locating module to be eated dishes without rice or wine measurement mechanism geographical location information operationally for measuring described 4G LTE, and by described communication module, geographical location information is sent to described computer;
Described memory module is used for preserving original test data when described 4G LTE eats dishes without rice or wine measurement mechanism work;
User interactive module, data processing module and data memory module is comprised in described computer;
Described user interactive module comprises mode of operation control module and data present output module; Described mode of operation control module arranges described 4G LTE according to user's input and to eat dishes without rice or wine the mode of operation of measurement mechanism, and sends to described 4G LTE measurement mechanism of eating dishes without rice or wine to perform test control information by described communication module; Described data present output module with word or/and graphics mode shows described 4G LTE on the screen of described computer eats dishes without rice or wine the test data of measurement mechanism;
Described data processing module comprises LOG module and data analysis module; Described LOG module receives eat dishes without rice or wine 4G LTE that measurement mechanism sends of described 4G LTE and to eat dishes without rice or wine test data and geographical location information under the control of described mode of operation control module, is saved in described data memory module; Described data analysis module completes 4G LTE and to eat dishes without rice or wine the extraction of test data, calculating and associate, and carries out classification and the sequence of data according to the demand that described data present output module;
Described data memory module preserves the data that 4G LTE eats dishes without rice or wine after original test data and computational analysis on described computer.
4. realize the 4G LTE that 4G LTE eats dishes without rice or wine to monitor to eat dishes without rice or wine a measurement mechanism, it is characterized in that, comprise LTE and to eat dishes without rice or wine demodulation module, control module and communication module, wherein:
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver;
Described radio-frequency module receives 4G LTE radio open signal by radio frequency connector from antenna, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to outer computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents.
5. realize the 4G LTE that 4G LTE eats dishes without rice or wine to monitor to eat dishes without rice or wine a measurement mechanism, it is characterized in that, comprise LTE and to eat dishes without rice or wine demodulation module, control module, communication module and locating module, wherein:
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver;
Described radio-frequency module receives 4G LTE radio open signal by radio frequency connector from antenna, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to outer computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
Described locating module to be eated dishes without rice or wine measurement mechanism geographical location information operationally for measuring described 4G LTE, and by described communication module, geographical location information is sent to outer computer.
6. realize the 4G LTE that 4G LTE eats dishes without rice or wine to monitor to eat dishes without rice or wine a measurement mechanism, it is characterized in that, comprise LTE and to eat dishes without rice or wine demodulation module, control module, communication module, locating module and memory module, wherein:
Described LTE demodulation module of eating dishes without rice or wine comprises radio-frequency module, LTE uplink receiver and LTE downlink receiver;
Described radio-frequency module receives 4G LTE radio open signal by radio frequency connector from antenna, and sends to described LTE uplink receiver and described LTE downlink receiver to carry out signal receiving respectively; Described LTE uplink receiver L1, L2 and L3 up to LTE carries out demodulation; Described LTE downlink receiver L1, L2 and L3 descending to LTE carries out demodulation;
Described control module selects working frequency range and mode of operation, and control LTE up-downgoing sequential, controls the demodulation of described LTE uplink receiver and described LTE downlink receiver;
Described communication module, except being connected with described control module, also sending to outer computer to carry out data storage, data processing and data with wireless connections or wired connection mode the demodulation result of described LTE uplink receiver and described LTE downlink receiver and presents;
Described locating module to be eated dishes without rice or wine measurement mechanism geographical location information operationally for measuring described 4G LTE, and by described communication module, geographical location information is sent to outer computer;
Described memory module is used for preserving original test data when described 4G LTE eats dishes without rice or wine measurement mechanism work.
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