CN106160892A - Method of testing and device for extensive mimo system base station - Google Patents
Method of testing and device for extensive mimo system base station Download PDFInfo
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- CN106160892A CN106160892A CN201610417735.3A CN201610417735A CN106160892A CN 106160892 A CN106160892 A CN 106160892A CN 201610417735 A CN201610417735 A CN 201610417735A CN 106160892 A CN106160892 A CN 106160892A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
Abstract
The invention discloses a kind of method of testing for extensive mimo system base station and device.Wherein, the method includes: when terminal communicates with base station to be measured, processes the transmission signal between terminal and base station to be measured according to default processing mode, and wherein, default processing mode at least includes: decline process, time delay processing and wave surface control process；The test result of base station to be measured is obtained according to the transmission signal after processing.The present invention solves the technical problem that base station testing of the prior art is inefficient.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method of testing for extensive mimo system base station
And device.
Background technology
MIMO (Multiple-Input Multiple-Output, multi-input multi-output system) technology refer at transmitting terminal and
Receiving terminal uses multiple transmitting antenna and reception antenna respectively, the multiple antennas making signal pass through transmitting terminal and receiving terminal transmit and
Receive, thus improve communication quality.How the base station using MIMO technology is tested, so that it is determined that the performance of this base station,
Significant to the communication quality guaranteeing this base station.
At present, the base station and terminal unit using MIMO technology is being tested, typically using Multiple probe technique, outfield to survey
Examination method and conduction test method etc., but, use the testing cost of Multiple probe technique along with the antenna amount line of extensive MIMO technology
Property increase, system Construction and safeguard extremely complex, and hardware to realize difficulty high, be substantially limited to the survey for terminal unit
In examination scheme；The repeatability of field testing method is poor, and the requirement to the network hardware is too high, and cannot realize asking after test crash
Topic is followed the tracks of and backtracking；Conduction test rule is limited to extensive mimo system and does not possess port or the call wire that conduction cable connects
The enormous amount of cable, is difficult to conduction and connects.To sum up, there is testing cost and test complexity relatively in base station testing of the prior art
The technical problem that height, accurate testing degree and testing efficiency are relatively low.
For above-mentioned problem, effective solution is the most not yet proposed.
Summary of the invention
Embodiments provide a kind of method of testing for extensive mimo system base station and device, at least to solve
The technical problem that certainly base station testing of the prior art is inefficient.
An aspect according to embodiments of the present invention, it is provided that a kind of test side for extensive mimo system base station
Method, the method includes: when terminal communicates with base station to be measured, according to default processing mode to described terminal and described base station to be measured
Between transmission signal process, wherein, described default processing mode at least includes: decline process, time delay processing and ripple battle array
Face control processes；The test result of described base station to be measured is obtained according to the described transmission signal after processing.
Further, described basis is preset processing mode and is entered the transmission signal between described terminal and described base station to be measured
Row process includes: obtaining the described transmission signal on each multipath, wherein, described multipath is in described terminal and described base station to be measured
Produced during communication；Obtain the first signal parameter of described transmission signal, and described first signal parameter is processed, obtain
Described transmission signal after described process, wherein, described first signal parameter is that described transmission signal is without described default process
The parameter that mode is entrained before processing, described first signal parameter at least includes: transmission time, space phase and angle phase
Position.
Further, described described first signal parameter is processed, obtain the described transmission signal after described process
Including: processing described first signal parameter according to preset formula, wherein, described preset formula isDescribed K is the number of described multipath, described ukT () is described transmission letter
Wireless channel decline number on kth multipath, described δ [τ-τk(t)] it is the delay spread of described transmission signal, described τk(t)
For described delay spread time dependent phase property on described kth multipath, described δ (θ-θk) it is described transmission signal
Spatial spread, described θkFor the described spatial spread described phase property on described kth multipath, described t is described biography
The described transmission time of defeated signal, described θ is the described space phase of described transmission signal, and described τ is described transmission signal
Described angular phase, and described h (t, τ, θ) is the described transmission signal after described process.
Further, described obtain the test result of described base station to be measured according to the described transmission signal after processing and include:
Obtaining the secondary signal parameter of the described transmission signal after described process, wherein, described secondary signal parameter is described transmission letter
Number parameter entrained after described default processing mode processes, described secondary signal parameter at least includes one of the following: letter
Number intensity, signal to noise ratio, signal transmission rate and the bit error rate；The institute corresponding with described secondary signal parameter is determined according to default list
State test result.
Further, when terminal communicates with base station to be measured, described method also includes: utilizes and inhales ripple darkroom to described in impact
The electromagnetic wave of transmission signal filters.
Another aspect according to embodiments of the present invention, additionally provides a kind of test for extensive mimo system base station dress
Putting, this device includes: processing unit, for when terminal communicates with base station to be measured, according to default processing mode to described terminal
And the transmission signal between described base station to be measured processes, wherein, described default processing mode at least includes: decline process,
Time delay processing and wave surface control process；Acquiring unit, for obtaining described base to be measured according to the described transmission signal after processing
The test result stood.
Further, described processing unit includes: first obtains subelement, for obtaining the described transmission on each multipath
Signal, wherein, described multipath is produced when described terminal communicates with described base station to be measured；Process subelement, be used for obtaining institute
State the first signal parameter of transmission signal, and described first signal parameter is processed, obtain the described biography after described process
Defeated signal, wherein, described first signal parameter is entrained before described transmission signal processes without described default processing mode
Parameter, described first signal parameter at least includes: transmission time, space phase and angular phase.
Further, described process subelement includes: processing module, for joining described first signal according to preset formula
Number processes, and wherein, described preset formula isDescribed K is described
The number of multipath, described ukT () is the wireless channel decline on kth multipath of the described transmission signal, described δ [τ-τk(t)] be
The delay spread of described transmission signal, described τkT () is described delay spread time dependent phase on described kth multipath
Position feature, described δ (θ-θk) it is the spatial spread of described transmission signal, described θkFor described spatial spread at described kth multipath
On described phase property, described t is the described transmission time of described transmission signal, and described θ is the described of described transmission signal
Space phase, described τ is the described angular phase of described transmission signal, and described h (t, τ, θ) is described after described process
Transmission signal.
Further, described acquiring unit includes: second obtains subelement, the described transmission after obtaining described process
The secondary signal parameter of signal, wherein, described secondary signal parameter is that described transmission signal processes through described default processing mode
Parameter entrained afterwards, described secondary signal parameter at least includes one of the following: the transmission of signal intensity, signal to noise ratio, signal is fast
Rate and the bit error rate；Determine subelement, for determining the described test knot corresponding with described secondary signal parameter according to default list
Really.
Further, described device also includes: filter element, inhales ripple darkroom to the described transmission signal of impact for utilizing
Electromagnetic wave filters.
In embodiments of the present invention, when terminal communicates with base station to be measured, use preset processing mode to described terminal with
Transmission signal between described base station to be measured processes, and wherein, described default processing mode at least includes: decline process, time
Prolong process and wave surface control processes, reach to obtain according to the described transmission signal after processing the test knot of described base station to be measured
The purpose of fruit, it is achieved thereby that reduce testing cost and difficulty of test, raising measuring accuracy and the technology of lifting testing efficiency
Effect, and then solve the technical problem that base station testing of the prior art is inefficient.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of stream optionally with the method for testing in extensive mimo system base station according to embodiments of the present invention
Journey schematic diagram；
Fig. 2 is that another kind according to embodiments of the present invention is optionally with in the method for testing of extensive mimo system base station
Schematic flow sheet；
Fig. 3 is that according to embodiments of the present invention another is optionally with in the method for testing of extensive mimo system base station
Schematic flow sheet；
Fig. 4 is a kind of knot optionally with the test device in extensive mimo system base station according to embodiments of the present invention
Structure schematic diagram；
Fig. 5 is a kind of knot optionally with the test system in extensive mimo system base station according to embodiments of the present invention
Structure schematic diagram；
Fig. 6 is that another kind according to embodiments of the present invention is optionally with in the test system of extensive mimo system base station
Structural representation；
Fig. 7 is that according to embodiments of the present invention another is optionally with in the test system of extensive mimo system base station
Structural representation.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, all should belong to the model of present invention protection
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that so use
Data can exchange in the appropriate case, in order to embodiments of the invention described herein can with except here diagram or
Order beyond those described is implemented.Additionally, term " includes " and " having " and their any deformation, it is intended that cover
Cover non-exclusive comprising, such as, contain series of steps or the process of unit, method, system, product or equipment are not necessarily limited to
Those steps clearly listed or unit, but can include the most clearly listing or for these processes, method, product
Or intrinsic other step of equipment or unit.
First the technical term involved by the embodiment of the present invention is made description below:
MIMO:(Multiple-Input Multiple-Output, multi-input multi-output system) technology refers at transmitting terminal
Use multiple transmitting antenna and reception antenna with receiving terminal respectively, make signal pass through multiple antenna transmission of transmitting terminal and receiving terminal
And reception, thus improve communication quality.It can make full use of space resources, realizes MIMO by multiple antennas, is not increasing
Add in the case of frequency spectrum resource and antenna launch power, system channel capacity can be increased exponentially, demonstrate obvious advantage,
It is considered the core technology of next generation mobile communication.
Embodiment 1
According to embodiments of the present invention, it is provided that the embodiment of a kind of method of testing for extensive mimo system base station,
It should be noted that can be in the department of computer science of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing
System performs, and, although show logical order in flow charts, but in some cases, can be to be different from herein
Order perform shown or described by step.
Fig. 1 is according to embodiments of the present invention a kind of optionally with in the method for testing of extensive mimo system base station, as
Shown in Fig. 1, the method comprises the steps:
Step S102, when terminal communicates with base station to be measured, according to default processing mode between terminal and base station to be measured
Transmission signal process, wherein, default processing mode at least includes: at decline process, time delay processing and wave surface control
Reason；
Step S104, obtains the test result of base station to be measured according to the transmission signal after processing.
In embodiments of the present invention, when terminal communicates with base station to be measured, use preset processing mode to described terminal with
Transmission signal between described base station to be measured processes, and wherein, described default processing mode at least includes: decline process, time
Prolong process and wave surface control processes, reach to obtain according to the described transmission signal after processing the test knot of described base station to be measured
The purpose of fruit, it is achieved thereby that reduce testing cost, improve measuring accuracy and promote the technique effect of testing efficiency, and then solves
The technical problem that base station testing of the prior art of having determined is inefficient.
Alternatively, this terminal can be the mobile terminals such as mobile phone, panel computer, notebook computer, it is also possible to imitates for terminal
True instrument.This terminal emulation instrument possesses the functions such as signal generation, signal transmitting and receiving and signal processing.Base station to be measured i.e. common moving
Communication base station, it is a kind of form of radio station, refers to, in certain area of radio coverage, be exchanged by mobile communication
The transceiving letter radio station of information transmission is carried out between center, and terminal.Base station to be measured in the application can be to use
The base station of MIMO technology, this base station can be provided with the aerial array comprising multiple antenna, and this aerial array may be used for sending out
Send or receive signal.MIMO is realized by multiple antennas, in the case of not increasing frequency spectrum resource and antenna transmitting power,
The channel capacity during base station and terminal communication can be increased exponentially.
Alternatively, decline processes and refers to that simulating fade-out or multipath fading phenomenon processes signal, decline be by
The random strong phenomenon risen and fallen is there is in the some field intensity that receives caused by random multipath ray interference.Additionally, multipath fading is
Refer in the transmitting procedure of microwave signal, owing to being affected by ground or water-reflected and atmospheric refraction, multiple process can be produced
Different paths arrive the signal of receiver, synthesize time varying signal after vector superposed. and multipath fading can be divided into flat decline and frequency
Rate Selective intensity.
Alternatively, time delay processing refer to simulate time delay phenomenon signal is processed, time delay refer to a signal, message or
It is grouped the time required for another end transmitted from one end of a network.It includes transmission delay, propagation delay and place
Reason time delays etc., the time delay summation of above-mentioned three can be referred to as overall delay.
Alternatively, wave surface control processes and refers to utilize the wave surface formed in signals transmission to carry out transmission signal
Process.Wave surface is also called equiphase surface, refers to that each point arrived through the identical time is propagated in the vibration that wave source sends in media as well
The face of composition.Wave surface control processes and can include that multichannel power distribution process, phase offset process and attenuation processing able to programme
Deng.Such as, when carrying out multichannel wave surface control and processing, it controls logic can be as follows:
Definition vector:
Then the control logic of horizontal plane is:
And the control logic of ball-shaped surface is:
It should be noted that the base station set up according to the method for testing for extensive mimo system base station of the application
Test model can apply in laboratory or open air, such as, it is wireless that this model can rebuild extensive MIMO in the lab
The space of channel, temporal characteristics.Additionally, for ensure this model realizability, the physical distance of its test environment should be greater than be
System maximum antenna distance, meanwhile, this model also possesses the ability of structure level and ball-type propagation model.
Also, it should be noted provided herein is a kind of optionally with in the test side of extensive mimo system base station
Method, can be applicable to base station testing, the test of large-scale antenna array base station kind equipment, large-scale antenna array terminal kind equipment
Test and large-scale antenna array production testing etc..
Alternatively, Fig. 2 is that another kind according to embodiments of the present invention is optionally with in the survey of extensive mimo system base station
The schematic flow sheet of method for testing, as in figure 2 it is shown, step S102, according to default processing mode between terminal and base station to be measured
Transmission signal carries out process and includes:
Step S202, obtains the transmission signal on each multipath, and wherein, multipath is produced when terminal communicates with base station to be measured
Raw；
Step S204, obtains the first signal parameter of transmission signal, and processes the first signal parameter, processed
After transmission signal, wherein, the first signal parameter is parameter entrained before transmission signal processes without default processing mode,
First signal parameter at least includes: transmission time, space phase and angular phase.
Alternatively, at wireless communication field, multipath refers to that electromagnetic wave arrives at reception antenna from launching antenna through multiple paths
Propagation phenomenon.Atmosphere to the scattering of electromagnetic wave, ionosphere to the reflection of electromagnetic wave and refraction, and the ground such as the chain of mountains, building
The reflection of electromagnetic wave all can be caused multipath transmisstion by table object.The test for extensive mimo system base station according to the application
The test model of the base station that method is set up can simulate electromagnetic wave propagation environment, and produces multipath phenomenon.
Alternatively, processing the first signal parameter, the transmission signal after being processed may include that
Step S10, processes described first signal parameter according to preset formula, and wherein, described preset formula isDescribed K is the number of described multipath, described ukT () is described transmission letter
Wireless channel decline number on kth multipath, described δ [τ-τk(t)] it is the delay spread of described transmission signal, described τk(t)
For described delay spread time dependent phase property on described kth multipath, described δ (θ-θk) it is described transmission signal
Spatial spread, described θkFor the described spatial spread described phase property on described kth multipath, described t is described biography
The described transmission time of defeated signal, described θ is the described space phase of described transmission signal, and described τ is described transmission signal
Described angular phase, and described h (t, τ, θ) is the described transmission signal after described process.
It should be noted that this preset formula is corresponding to the test model of above-mentioned base station, this test model describes big rule
The Time-varying fading characteristic of each multipath of mould MIMO wireless channel and any delay spread characteristic.This test model can be by multichannel
K () channel fading emulator and multichannel (N) wave surface controller are constituted, it is possible to achieve wireless channel decline, delay spread
And the characteristic of three aspects of spatial spread, thus significantly reduce the algorithm logic requirement of channel simulator, and then reduce communication
System is for the demand of radio channel emulator.
Alternatively, Fig. 3 is that another kind according to embodiments of the present invention is optionally with in the survey of extensive mimo system base station
The schematic flow sheet of method for testing, as it is shown on figure 3, step S104, obtains the test of base station to be measured according to the transmission signal after processing
Result includes:
Step S302, the secondary signal parameter of the transmission signal after acquisition process, wherein, secondary signal parameter is transmission letter
Number through presetting parameter entrained after processing mode processes, secondary signal parameter at least includes one of the following: signal intensity, letter
Make an uproar ratio, signal transmission rate and the bit error rate；
Step S304, determines the test result corresponding with secondary signal parameter according to default list.
Such as, utilize the method for testing for extensive mimo system base station provided herein respectively to base station A, base
Stand B, base station C and base station D tests, and test event and test result can be as shown in table 1.
Table 1
| Base station is numbered | Signal intensity | Signal transmission rate | The bit error rate | Overall merit |
| Base station A | By force | Hurry up | Low | Excellent |
| Base station B | Stronger | Comparatively fast | Relatively low | More excellent |
| Base station C | More weak | Slower | Higher | Poor |
| Base station D | Weak | Slowly | High | Difference |
Alternatively, as shown in Table 1, the method for testing for extensive mimo system base station provided herein is utilized to divide
Other three indexs (signal intensity, signal transmission rate and the bit error rate) respective to base station A, base station B, base station C and base station D are carried out
Test, the test result drawn is: the signal intensity of base station A is strong, signal transmission rate is fast and the bit error rate is low, and its overall merit is
Excellent, and the signal intensity of base station D is weak, signal transmission rate is slow and the bit error rate is high, its overall merit is worst, base station B's and base station C
Test case does not repeats at this.
The most such as, utilize the method for testing for extensive mimo system base station provided herein respectively to base station A
The second corresponding parameter is evaluated, and can obtain the test result of base station A, and this test result can be as shown in table 2.Need
Bright, test result in table 2 is the individual event test result that the second parameter is corresponding, the second parameter and individual event test result it
Between corresponding relation and give divider then can artificially be configured, the second parameter for the performance of testing base station can have many
Individual, the application does not limits at this.
Table 2
| Signal intensity | Test result | Transfer rate | Test result | The bit error rate | Test result |
| ≤60 | By force | 4M< | Hurry up | ≤ 0.1% | Excellent |
| (60,80] | Stronger | (1M, 4M] | Comparatively fast | (0.1%, 1%] | More excellent |
| (80,100] | More weak | (128K, 1M] | Slower | (1%, 2.5%] | Poor |
| 100< | Weak | 128K≤ | Slowly | 2.5% < | Difference |
During it should be noted that the second parameter in table 2 is signal intensity, the unit of this second parameter is dBm；In table 2
The second parameter when being transfer rate, the unit of this second parameter is Byte.By obtaining every second parameter of base station A, enter
And according to the corresponding relation of the second parameter in table 2 with test result, the evaluation knot of every test index of base station A can be obtained
Really.
Alternatively, when terminal communicates with base station to be measured, method also includes:
Step S20, utilizes suction ripple darkroom to filter the electromagnetic wave of impact transmission signal.
Alternatively, the main material inhaling ripple darkroom is that ripple sponge SA (high frequency use) inhaled by polyurethane, additionally, at test electromagnetism
Time compatible, owing to underfrequency can also use ferrite wave-absorbing material.The main operational principle inhaling ripple darkroom is according to electricity
The rule that magnetic wave is propagated from low magnetic steering high magnetic conductance direction in media as well, utilizes high magnetic permeability absorbing material guide electromagnetic waves, logical
Cross resonance, the emittance of a large amount of electromagnetic wave absorptions, then by coupling, the energy conversion of electromagnetic wave is become heat energy.Utilize suction ripple dark
Room carries out filtration to the electromagnetic wave of impact transmission signal against noise jamming, can improve measuring accuracy and the effect of tested base station
Rate.
In embodiments of the present invention, when terminal communicates with base station to be measured, use preset processing mode to described terminal with
Transmission signal between described base station to be measured processes, and wherein, described default processing mode at least includes: decline process, time
Prolong process and wave surface control processes, reach to obtain according to the described transmission signal after processing the test knot of described base station to be measured
The purpose of fruit, it is achieved thereby that reduce testing cost, improve measuring accuracy and promote the technique effect of testing efficiency, and then solves
The technical problem that base station testing of the prior art of having determined is inefficient.
Embodiment 2
Another aspect according to embodiments of the present invention, additionally provides a kind of test for extensive mimo system base station
Device, as shown in Figure 4, this device may include that processing unit 401, acquiring unit 403.
Wherein, processing unit 401, for when terminal communicates with base station to be measured, according to default processing mode to terminal and
Transmission signal between base station to be measured processes, and wherein, default processing mode at least includes: decline process, time delay processing and
Wave surface control processes；Acquiring unit 403, for obtaining the test result of base station to be measured according to the transmission signal after processing.
Alternatively, processing unit 401 includes: first obtains subelement, for obtaining the transmission signal on each multipath, its
In, multipath is produced when terminal communicates with base station to be measured；Process subelement, for obtaining the first signal ginseng of transmission signal
Number, and the first signal parameter is processed, the transmission signal after being processed, wherein, the first signal parameter is transmission signal
Parameter entrained before processing without default processing mode, the first signal parameter at least includes: the transmission time, space phase and
Angular phase.
Alternatively, process subelement and include: processing module, for described first signal parameter being carried out according to preset formula
Processing, wherein, described preset formula isDescribed K is the individual of described multipath
Number, described ukT () is the wireless channel decline on kth multipath of the described transmission signal, described δ [τ-τk(t)] it is described transmission
The delay spread of signal, described τkT () is described delay spread time dependent phase property on described kth multipath,
Described δ (θ-θk) it is the spatial spread of described transmission signal, described θkFor described spatial spread institute on described kth multipath
Stating phase property, described t is the described transmission time of described transmission signal, and described θ is the described space phase of described transmission signal
Position, described τ is the described angular phase of described transmission signal, and described h (t, τ, θ) is that the described transmission after described process is believed
Number.
Alternatively, acquiring unit 403 includes: second obtains subelement, second of the transmission signal after obtaining process
Signal parameter, wherein, secondary signal parameter is the parameter that transmission signal is entrained after presetting processing mode process, the second letter
Number parameter at least includes one of the following: signal intensity, signal to noise ratio, signal transmission rate and the bit error rate；Determine subelement, for root
The test result corresponding with secondary signal parameter is determined according to default list.
Alternatively, device also includes: filter element, for utilizing suction ripple darkroom to carry out the electromagnetic wave of impact transmission signal
Filter.
In embodiments of the present invention, when terminal communicates with base station to be measured, use preset processing mode to described terminal with
Transmission signal between described base station to be measured processes, and wherein, described default processing mode at least includes: decline process, time
Prolong process and wave surface control processes, reach to obtain according to the described transmission signal after processing the test knot of described base station to be measured
The purpose of fruit, it is achieved thereby that reduce testing cost, improve measuring accuracy and promote the technique effect of testing efficiency, and then solves
The technical problem that base station testing of the prior art of having determined is inefficient.
Embodiment 3
Another aspect according to embodiments of the present invention, additionally provides a kind of test for extensive mimo system base station
System, as it is shown in figure 5, this system includes: multiplex (MUX) decline emulator 501, multichannel wave surface controller 503 and extensive
Mimo antenna array 505, wherein, this multichannel wave surface controller 503 respectively with this multiplex (MUX) decline emulator 501 and this is big
Scale mimo antenna array 505 connects.
Alternatively, this multiplex (MUX) decline emulator 501 can realize propagating decline and the emulation weight of propagation delay model
Building, this multichannel wave surface controller 503 can realize the emulation reconstruction that multichannel wave surface control processes, this extensive mimo antenna
The aerial array of array 505 usually magnitude scales up to a hundred, the quantity of its antenna oscillator is equal to multiplex (MUX) decline emulator 501
Product value with the respective number of path of multichannel wave surface controller 503.
Alternatively, as shown in Figure 6, this is used in the test system of extensive mimo system base station, and multichannel wave surface controls
Device 503 and extensive mimo antenna array 505 can be arranged in suction ripple darkroom 601, and this multiplex (MUX) decline emulator 501 can
To be connected with the terminal such as mobile phone, this multiplex (MUX) decline emulator 501 can include several module FM (Fading that declines
Module) and time delay module DM (Delay Module), this multichannel wave surface controller 503 can include wavefront controller 605
(Wavefront Controller), water level control 607 (Plane Controller) and ball-shaped surface controller 609
(Spherical Controller)。
Alternatively, as it is shown in fig. 7, the entity structure of this multichannel wave surface controller 503 can also include that multichannel power divides
Orchestration 701, phase shifter 703, programmable attenuator 705 and antenna probes 707.It should be noted that multichannel wave surface control
Each road of device 503 processed the most at least includes 703, programmable attenuator 705 of a phase shifter and an antenna probes
707。
It should be noted that the test system for extensive mimo system base station provided herein, its test section
The size in territory is determined by multichannel wave surface controller.Test zone is the biggest, then the multipath number of multichannel wave surface controller is the most just
Greatly, cost is the highest, algorithm provided herein how many not restrictions to channel simulator port.Additionally, this survey
What test system was limited adds the construction size requirements inhaling ripple darkroom, and its scale will depend primarily upon the chi of extensive mimo antenna
Very little specification.
In embodiments of the present invention, when terminal communicates with base station to be measured, use preset processing mode to described terminal with
Transmission signal between described base station to be measured processes, and wherein, described default processing mode at least includes: decline process, time
Prolong process and wave surface control processes, reach to obtain according to the described transmission signal after processing the test knot of described base station to be measured
The purpose of fruit, it is achieved thereby that reduce testing cost, improve measuring accuracy and promote the technique effect of testing efficiency, and then solves
The technical problem that base station testing of the prior art of having determined is inefficient.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not has in certain embodiment
The part described in detail, may refer to the associated description of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be passed through other
Mode realizes.Wherein, device embodiment described above is only schematically, the division of the most described unit, Ke Yiwei
A kind of logic function divides, actual can have when realizing other dividing mode, the most multiple unit or assembly can in conjunction with or
Person is desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed is mutual
Between coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, unit or module or communication link
Connect, can be being electrical or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated list
Unit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.
If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unit
Time, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part that in other words prior art contributed or this technical scheme completely or partially can be with the form of software product
Embodying, this computer software product is stored in a storage medium, including some instructions with so that a computer
Equipment (can be for personal computer, server or the network equipment etc.) perform the whole of method described in each embodiment of the present invention or
Part steps.And aforesaid storage medium includes: USB flash disk, read only memory (ROM, Read-Only Memory), random access memory are deposited
Reservoir (RAM, Random Access Memory), portable hard drive, magnetic disc or CD etc. are various can store program code
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. the method for testing for extensive mimo system base station, it is characterised in that including:
When terminal communicates with base station to be measured, according to default processing mode to the transmission between described terminal and described base station to be measured
Signal processes, and wherein, described default processing mode at least includes: decline process, time delay processing and wave surface control process；
The test result of described base station to be measured is obtained according to the described transmission signal after processing.
Method the most according to claim 1, it is characterised in that described basis presets processing mode to described terminal with described
Transmission signal between base station to be measured carries out process and includes:
Obtaining the described transmission signal on each multipath, wherein, described multipath is when described terminal communicates with described base station to be measured
Produced；
Obtain the first signal parameter of described transmission signal, and described first signal parameter is processed, obtain described process
After described transmission signal, wherein, described first signal parameter is that described transmission signal processes without described default processing mode
Before entrained parameter, described first signal parameter at least includes: transmission time, space phase and angular phase.
Method the most according to claim 2, it is characterised in that described described first signal parameter is processed,
Obtain the described transmission signal after described process to include:
Processing described first signal parameter according to preset formula, wherein, described preset formula isDescribed K is the number of described multipath, described ukT () is described transmission letter
Wireless channel decline number on kth multipath, described δ [τ-τk(t)] it is the delay spread of described transmission signal, described τk(t)
For described delay spread time dependent phase property on described kth multipath, described δ (θ-θk) it is described transmission signal
Spatial spread, described θkFor the described spatial spread described phase property on described kth multipath, described t is described biography
The described transmission time of defeated signal, described θ is the described space phase of described transmission signal, and described τ is described transmission signal
Described angular phase, and described h (t, τ, θ) is the described transmission signal after described process.
Method the most according to claim 1, it is characterised in that described obtain described according to the described transmission signal after processing
The test result of base station to be measured includes:
Obtaining the secondary signal parameter of the described transmission signal after described process, wherein, described secondary signal parameter is described biography
The parameter that defeated signal is entrained after described default processing mode processes, described secondary signal parameter at least include following it
One: signal intensity, signal to noise ratio, signal transmission rate and the bit error rate；
The described test result corresponding with described secondary signal parameter is determined according to default list.
Method the most according to claim 1, it is characterised in that when terminal communicates with base station to be measured, described method is also wrapped
Include:
Utilize suction ripple darkroom that the electromagnetic wave affecting described transmission signal is filtered.
6. the test device for extensive mimo system base station, it is characterised in that including:
Processing unit, for when terminal communicates with base station to be measured, to be measured with described to described terminal according to default processing mode
Transmission signal between base station processes, and wherein, described default processing mode at least includes: decline process, time delay processing and
Wave surface control processes；
Acquiring unit, for obtaining the test result of described base station to be measured according to the described transmission signal after processing.
Device the most according to claim 6, it is characterised in that described processing unit includes:
First obtains subelement, for obtaining the described transmission signal on each multipath, wherein, described multipath described terminal with
Produced during the communication of described base station to be measured；
Process subelement, for obtaining the first signal parameter of described transmission signal, and to described first signal parameter at
Reason, obtains the described transmission signal after described process, and wherein, described first signal parameter is that described transmission signal is without described pre-
If the parameter that processing mode is entrained before processing, described first signal parameter at least includes: transmission time, space phase and angle
Degree phase place.
Device the most according to claim 7, it is characterised in that described process subelement includes:
Processing module, for processing described first signal parameter according to preset formula, wherein, described preset formula isDescribed K is the number of described multipath, described ukT () is described transmission letter
Wireless channel decline number on kth multipath, described δ [τ-τk(t)] it is the delay spread of described transmission signal, described τk(t)
For described delay spread time dependent phase property on described kth multipath, described δ (θ-θk) it is described transmission signal
Spatial spread, described θkFor the described spatial spread described phase property on described kth multipath, described t is described biography
The described transmission time of defeated signal, described θ is the described space phase of described transmission signal, and described τ is described transmission signal
Described angular phase, and described h (t, τ, θ) is the described transmission signal after described process.
Device the most according to claim 6, it is characterised in that described acquiring unit includes:
Second obtains subelement, for obtaining the secondary signal parameter of the described transmission signal after described process, wherein, and described the
Binary signal parameter is the parameter that described transmission signal is entrained after described default processing mode processes, and described secondary signal is joined
Count and at least include one of the following: signal intensity, signal to noise ratio, signal transmission rate and the bit error rate；
Determine subelement, for determining the described test result corresponding with described secondary signal parameter according to default list.
Device the most according to claim 6, it is characterised in that described device also includes:
Filter element, for utilizing suction ripple darkroom to filter the electromagnetic wave affecting described transmission signal.
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| CN201610417735.3A CN106160892A (en) | 2016-06-14 | 2016-06-14 | Method of testing and device for extensive mimo system base station |
| PCT/CN2016/086899 WO2017215020A1 (en) | 2016-06-14 | 2016-06-23 | Method and device for testing large-scale mimo system base station |
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| CN111954260A (en) * | 2020-08-10 | 2020-11-17 | 杭州电子科技大学 | Large-scale terminal grouping method and system |
| CN112583502A (en) * | 2019-09-27 | 2021-03-30 | 维沃移动通信有限公司 | Probe antenna determination method and device |
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| CN114499715B (en) * | 2021-12-23 | 2024-03-19 | 云尖信息技术有限公司 | Method and device for detecting intelligent antenna array, computer equipment and storage medium |
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| WO2017215020A1 (en) | 2017-12-21 |
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