CN110266402A - Channel simulator calibration method and device - Google Patents
Channel simulator calibration method and device Download PDFInfo
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- CN110266402A CN110266402A CN201910531742.XA CN201910531742A CN110266402A CN 110266402 A CN110266402 A CN 110266402A CN 201910531742 A CN201910531742 A CN 201910531742A CN 110266402 A CN110266402 A CN 110266402A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The embodiment of the invention discloses a kind of channel simulator calibration method and devices, pre-set multiple and different self calibration opportunitys, as long as reaching any one opportunity, self calibration just is carried out to the prevention at radio-frequency port of channel simulator, compared with only carrying out self calibration under the conditions of one kind in the prior art, the self-alignment condition of triggering is increased, the reliability of channel simulation port is improved.
Description
Technical field
The present invention relates to fields of communication technology, more specifically to a kind of channel simulator calibration method and device.
Background technique
Channel is the medium of information in wireless communication system transmission, is component part indispensable in system, wireless communication
The quality in road directly decides communication quality.Channel simulator is by RF front-end module, IF signal processing module and inside
The compositions such as local oscillator module, for constructing field testing environment in laboratory, test the wireless transmission capability of communication equipment.Letter
After road simulator long-time use, the reliability of prevention at radio-frequency port can be reduced, and need to carry out port school to channel simulator thus
It is quasi-.
Currently, common channel simulator is the self calibration for carrying out port in booting, however, this calibrating mode is still
The reliability of channel simulator port is not can guarantee so.Therefore, the reliability for how improving channel simulator port becomes urgently
The technical issues of solution.
Summary of the invention
The object of the present invention is to provide a kind of channel simulator calibration method and devices, to improve channel simulator port
Reliability.Including following technical solution:
A kind of channel simulator calibration method, comprising:
Monitor whether to reach any one calibration opportunity in preset multiple calibration opportunitys；
When reach any one calibration opportunity when, start self-calibration function with the prevention at radio-frequency port to the channel simulator into
Row self calibration.
The above method, it is preferred that the multiple calibration opportunity includes at least:
The temperature for reaching target monitoring point in preset time cycle or operational process in booting, operational process, which meets, to be preset
At least two in condition.
The above method, it is preferred that the temperature of the target monitoring point meets preset condition and includes:
The temperature of the target monitoring point and the preceding primary temperature for carrying out target monitoring point when prevention at radio-frequency port self calibration
Difference reaches threshold value.
The above method, it is preferred that self-correcting is carried out with the prevention at radio-frequency port to the channel simulator in starting self-calibration function
Before standard, further includes:
Output temperature difference reaches the prompt of threshold value；
When receiving the instruction of starting port self-calibration function of user's triggering, start self-calibration function to the letter
The prevention at radio-frequency port of road simulator is calibrated.
The above method, it is preferred that when reaching the preset time cycle in operational process, in starting self-calibration function with right
The prevention at radio-frequency port of the channel simulator carries out before self calibration, further includes:
Output reaches the prompt of preset time cycle；
When receiving the instruction of starting port self-calibration function of user's triggering, start self-calibration function to the letter
The prevention at radio-frequency port of road simulator is calibrated.
The above method, it is preferred that further include:
Specified target radio frequency emission port and target radio frequency receiving port；The target radio frequency emission port and the target
Radio frequency reception port is connected by coaxial cable；
It obtains and needs the content calibrated and the parameter that need to be configured；It is described need the content calibrated include: power and/or when
Prolong and RF spot；The parameter that need to be configured includes: the transmission power of target radio frequency emission port；
In each RF spot: according to the parameter configured, being emitted by the target radio frequency emission port corresponding
Signal；It is received in the target radio frequency receiving port and detects the power and time delay of signal；According to the power and time-delay calculation
The line loss compensation value of the coaxial cable of the corresponding RF spot, to emit in the RF spot the target radio frequency
Port and/or the target radio frequency receiving port carry out line loss calibration.
The above method, it is preferred that when need at least two radio-frequency transmissions ports carry out line loss calibration when, for it is described extremely
Each radio-frequency transmissions port of few two radio-frequency transmissions ports, is appointed as target radio frequency transmitting terminal for the radio-frequency transmissions port
Mouthful, which is connected with the target radio frequency receiving port by coaxial cable.
The above method, it is preferred that when need at least two radio frequency reception ports carry out line loss calibration when, for it is described extremely
Each radio frequency reception port of few two radio frequency reception ports, is appointed as target radio frequency receiving end for the radio frequency reception port
Mouthful, which is connected with the target radio frequency emission port by coaxial cable.
A kind of channel simulator calibrating installation, comprising:
Monitoring modular reaches any one calibration opportunity in preset multiple calibration opportunitys for monitoring whether；
First calibration module, for starting self-calibration function to the channel when reaching any one calibration opportunity
The prevention at radio-frequency port of simulator carries out self calibration.
Above-mentioned apparatus, it is preferred that further include:
Second calibration module, for specifying target radio frequency emission port and target radio frequency receiving port；The target radio frequency
Emission port is connected with the target radio frequency receiving port by coaxial cable；It obtains and needs the content calibrated and the ginseng that need to be configured
Number；The content that the needs are calibrated includes: power and/or time delay and RF spot；The parameter that need to be configured includes: mesh
Mark the transmission power of radio-frequency transmissions port；In each RF spot: according to the parameter configured, being sent out by the target radio frequency
It penetrates port and emits corresponding signal；It is received in the target radio frequency receiving port and detects the power and time delay of signal；According to institute
State power and time-delay calculation correspond to the RF spot the coaxial cable line loss compensation value, in the RF spot pair
The target radio frequency emission port and/or the target radio frequency receiving port carry out line loss calibration.
By above scheme it is found that a kind of channel simulator calibration method provided by the invention and device, pre-set
Multiple and different self calibration opportunitys carries out self calibration to the prevention at radio-frequency port of channel simulator as long as reaching any one opportunity,
Compared with only carrying out self calibration under the conditions of one kind in the prior art, the self-alignment condition of triggering is increased, channel simulation is improved
The reliability of port.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of implementation flow chart of channel simulator calibration method provided in an embodiment of the present invention；
Fig. 2 is the host computer interface example provided in an embodiment of the present invention that self calibration configuration is carried out to designated port
Figure；
The exemplary diagram of host computer interface when Fig. 3 is the progress line loss calibration provided in an embodiment of the present invention to designated port；
Fig. 4 is a kind of structural schematic diagram of channel simulator calibrating installation provided in an embodiment of the present invention.
Specification and claims and term " first " in above-mentioned attached drawing, " second ", " third " " the 4th " etc. (if
In the presence of) it is part for distinguishing similar, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that the embodiment of the present invention described herein can be in addition to illustrating herein
Sequence in addition is implemented.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
Channel simulator calibration method and device provided by the invention are applied in channel simulator.
Referring to Fig. 1, Fig. 1 is a kind of implementation flow chart of channel simulator calibration method provided in an embodiment of the present invention,
May include:
Step S11: monitor whether to reach any one calibration opportunity in preset multiple calibration opportunitys.If so, holding
Otherwise row step S12 continues to execute step S11.
In the embodiment of the present invention, on preset multiple and different calibration opportunity, multiple different calibration opportunity can be according to shadow
The factor for ringing the reliability of channel simulator port determines.Inventor the study found that influence channel simulator port can
Factor by property at least may include: the temperature of board in channel simulator runing time and channel simulator.Board is letter
The main modular that signal processing is carried out in road simulator, is usually formed by muti-piece circuit board integration packaging together.
It may include channel simulator booting in multiple calibration opportunity.I.e. the present invention in addition to booting when to channel simulation
The prevention at radio-frequency port of device carries out outside self calibration, also carries out self calibration to the prevention at radio-frequency port of channel simulator under other circumstances.
Step S12: starting self-calibration function carries out self calibration with the prevention at radio-frequency port to channel simulator.
Self-calibration function can be started by calling calibration function.After starting self-calibration function, channel simulator can be certainly
It is dynamic that self calibration is successively carried out to all prevention at radio-frequency port.All emission ports are usually first traversed, successively each emission port is carried out
Calibration, then all receiving ports are traversed, successively each receiving port is calibrated, duration needed for each port is calibrated is about
40s。
The channel simulator calibration method of function of the present invention pre-sets multiple and different self calibration opportunitys, as long as reaching
To any one opportunity, self calibration just is carried out to the prevention at radio-frequency port of channel simulator, and in the prior art only under the conditions of one kind
It carries out self calibration to compare, increases the self-alignment condition of triggering, improve the reliability of channel simulation port.
Above-mentioned multiple calibration opportunitys at least may include at least two in several following in an optional embodiment:
Booting.That is, carrying out self calibration when channel simulator is switched on every time.
Reach the preset time cycle in operational process.After i.e. channel simulator brings into operation, period at regular intervals
Self calibration is primary.
The temperature of target monitoring point meets preset condition in operational process.After i.e. channel simulator brings into operation, mesh is monitored
The temperature for marking monitoring point when the temperature when the monitoring point meets preset condition, starts self-calibration function.
Above-mentioned several calibration opportunitys are mutually indepedent, are independent of each other.
In an optional embodiment, the temperature of above-mentioned target monitoring point meets preset condition and may include:
The temperature difference of target monitoring point reaches threshold when the temperature of target monitoring point and preceding primary progress prevention at radio-frequency port self calibration
Value.Optionally, which can be 5 DEG C, and certain threshold value may be set to be other values, specifically can be by user rule of thumb
It determines.
Wherein, the preceding primary prevention at radio-frequency port self calibration that carries out is not the default item of temperature satisfaction for refering in particular to preceding target monitoring point
To the self calibration of prevention at radio-frequency port when part, and refer to the last self calibration carried out to prevention at radio-frequency port, the last time is to radio frequency
The self calibration that port carries out may be the self calibration carried out when channel simulator booting to prevention at radio-frequency port, it may be possible to because reaching
Preset time cycle and the self calibration that prevention at radio-frequency port is carried out, it is also possible to because the temperature of target monitoring point meets default item
The self calibration that prevention at radio-frequency port is carried out when part.
As shown in Fig. 2, for host computer circle provided in an embodiment of the present invention for carrying out self calibration configuration to designated port
Face exemplary diagram.The interface can be recalled by clicking preset " self calibration " virtual key.In the example, user can be set by
It is carried out the self-alignment time cycle according to preset period of time, in the example, time cycle 60min also be can be set according to temperature
Degree carries out threshold value when self calibration, and in the example, threshold value is 10 DEG C.User is also an option that radio frequency interface to be calibrated (is schemed
In channel, the corresponding radio-frequency transmissions interface in channel and a radio frequency reception port) after setting parameter, Yong Hudian
It hits " determination " i.e. configuration to complete, later, in channel simulator operational process, can prompt within every 60 minutes once to reach week time
Phase, when the real time temperature of monitoring point and preceding primary calibration, the temperature difference of monitoring point is higher than 10 DEG C, the magnanimous threshold of temperature indicator difference
Value, so that user decides whether to start self-calibration function according to prompt.
In an optional embodiment, when the temperature of target monitoring point meets preset condition, in starting self-calibration function
Before carrying out self calibration with the prevention at radio-frequency port to channel simulator, can also include:
Output reaches the prompt of preset time cycle.The prompt can be exported with text mode, be also possible to voice side
Formula exports the prompt.Alternatively, the prompt is exported in a manner of text or voice simultaneously.Or the lamp point for passing through the first predetermined color
It is bright to characterize the prompt.Alternatively, being flashed by the first predetermined color lamp by certain way to characterize the prompt.
When receiving the instruction of starting port self-calibration function of user's triggering, start self-calibration function to channel mould
The prevention at radio-frequency port of quasi- device is calibrated.
The instruction of the starting port self-calibration function can be triggered by user by operating preset physical button, alternatively,
Preset virtual key triggering is manipulated in preset operation interface by user, alternatively, exporting in prompting interface for choosing whether
The selection key of the instruction of triggering starting port self-calibration function, when user's selection is, triggering generates starting port self calibration
The instruction of function.
It is not to directly initiate self calibration function when the temperature of target monitoring point meets preset condition in the embodiment of the present invention
Can, but just start self-calibration function in the instruction for the starting port self-calibration function for receiving user's triggering.It avoids directly
Starting influences the normal operation of channel simulator.
In an optional embodiment, when reaching the preset time cycle in operational process, in starting self-calibration function
Before carrying out self calibration with the prevention at radio-frequency port to channel simulator, can also include:
Output reaches the prompt of preset time cycle.The prompt can be exported with text mode, be also possible to voice side
Formula exports the prompt.Alternatively, the prompt is exported in a manner of text or voice simultaneously.Or the lamp point for passing through the second predetermined color
It is bright to characterize the prompt.The prompt is characterized alternatively, by two determining mode by the second predetermined color lamp and flashing.
When receiving the instruction of starting port self-calibration function of user's triggering, start self-calibration function to channel mould
The prevention at radio-frequency port of quasi- device is calibrated.
The instruction of the starting port self-calibration function can be triggered by user by operating preset physical button, alternatively,
Preset virtual key triggering is manipulated in preset operation interface by user, alternatively, exporting in prompting interface for choosing whether
The selection key of the instruction of triggering starting port self-calibration function, when user's selection is, triggering generates starting port self calibration
The instruction of function.
It is not to directly initiate self calibration function when reaching the preset time cycle in the process of running in the embodiment of the present invention
Can, but just start self-calibration function in the instruction for the starting port self-calibration function for receiving user's triggering.It avoids directly
Starting influences the normal operation of channel simulator.
In an optional embodiment, channel simulator calibration method provided by the invention can also include:
After the completion of self calibration, calibration result is output in system log, the calibration result may include: calibration opportunity,
Prover time and prevention at radio-frequency port.In order to which user can check calibration history data at any time.
In addition, after the completion of self calibration, if self calibration success, exports the prompt information of self calibration completion, if self calibration
It malfunctions in the process, then exports the prompt information of calibration failure.
Inventor is the study found that channel simulator also can connect coaxial cable, coaxial cable in actual work
The signal for exporting or inputting to port brings loss (hereinafter referred to as line loss).Based on this,
In an optional embodiment, channel simulator provided by the invention according to previous embodiment in addition to that can carry out certainly
Calibration is outer, can also carry out line loss calibration to each port, can specifically include:
Specified target radio frequency emission port and target radio frequency receiving port；Wherein, target radio frequency emission port and target are penetrated
Frequency receiving port is connected by coaxial cable.
When user needs to carry out line loss calibration to some radio-frequency transmissions port A, radio-frequency transmissions port A can be specified
For target radio frequency emission port, some radio frequency reception port B on channel simulator is appointed as target radio frequency receiving port, and is led to
Cross coaxial cable connection radio-frequency transmissions port A and radio frequency reception port B.
It obtains and needs the content calibrated and the parameter that need to be configured；It is described need the content calibrated include: power and/or when
Prolong；The parameter that need to be configured includes: the transmission power of frequency point and target radio frequency emission port.
In the present embodiment, power consumption and time delay alternative or the two is supported to select.RF spot can specify multiple.
When specifying multiple RF spots, need by frequency point to target radio frequency emission port or target radio frequency receiving port into
Row calibration, according to the transmission power configured, is emitted corresponding under each RF spot by target radio frequency emission port
Signal；It is received in target radio frequency receiving port and detects the power and/or time delay of signal；It should according to power and/or time-delay calculation
The line loss compensation value (including power compensating value and/or phase compensation value) of the coaxial cable of RF spot, in the RF spot
Line loss calibration is carried out to target radio frequency emission port and/or target radio frequency receiving port.Line loss calibration include: power compensation and/
Or phase compensation.Need the content calibrated to determine with specific reference to set by user: if user has only selected power, line loss is calibrated only
Including power compensation, if user has only selected time delay, line loss calibration only includes phase compensation, if user's simultaneous selection power
And time delay, then line loss calibration had not only included power compensation but also had included phase compensation.
Optionally, the parameter of configuration can be passed to by target radio frequency emission port by calibration function, to carry out radio frequency
The parameter configuration of emission port.
After completing line loss calibration to target radio frequency emission port under each RF spot, RF spot is switched to automatically
Next RF spot in all frequency points that user specifies, under next RF spot, according to the method described above to target
Radio-frequency transmissions port carries out line loss calibration, until completing the line loss under all frequency points of user setting to target radio frequency emission port
Calibration.
For each radio-frequency transmissions port being calibrated, calibration related data is saved in the table, including but not limited to
Following data item: the transmission power (dB) of radio-frequency transmissions port；The calibration of power value (dB) of radio-frequency transmissions port；Radio-frequency transmissions end
The time delay (ns) of mouth；The phase calibration values (dB) of radio-frequency transmissions port；Radio frequency output port power (dB) etc..
For each radio frequency reception port being calibrated, calibration related data is saved in the table, including but not limited to
Following data item: the power (dB) of radio frequency reception port；The power compensating value (dB) of radio frequency reception port；Radio frequency reception port
Time delay (ns)；The phase compensation value (dB) of radio frequency reception port；Radio-frequency transmissions port power (dB) etc..
After line loss compensation value is calculated, line loss compensation value can be handed down in the intermediate frequency FPGA of a prevention at radio-frequency port,
Line loss offset is loaded by the FPGA, line loss calibration is carried out to prevention at radio-frequency port based on the line loss compensation value.
As shown in figure 3, host computer interface is shown when being the progress line loss calibration provided in an embodiment of the present invention to designated port
Example diagram.The interface can be recalled by clicking preset " multiport calibration " virtual key.In the interface, can choose is pair
The calibration of radio-frequency transmissions port still calibrates radio frequency reception port, if wanting to calibrate radio-frequency transmissions port, selects " the hair in figure
Sending end mouth calibration " selects " the receiving port calibration " in figure if wanting to calibrate radio frequency reception port, in the example, selection
When be " sending port calibration ".After having selected port type, it is also necessary to specified radio-frequency transmissions port and radio frequency reception port,
In the example, specifying radio-frequency transmissions port RF_OUT1 on " emission port selects " column is target radio frequency emission port, " is being connect
Receiving end mouth selects " column specify radio frequency reception port RF_IN1 be target radio frequency receiving port.In this example, it is configured with two frequencies
Point, respectively 5MHz and 30MHz.Frequency point can be revised as the frequency that can be used in practical application according to practical application by tester
Point.
The table of lower section is for recording calibration related data.In addition, the present invention also provides calibration related datas to save function,
After obtaining calibration related data, calibration related data can be saved in by default road by click " preservation " or " saving as "
Diameter is convenient for subsequent query.
User is after connecting radio-frequency transmissions port RF_OUT1 and radio frequency reception port RF_IN1 by coaxial cable, if point
" calibration " key is hit, line loss calibration can be carried out to radio-frequency transmissions port RF_OUT1.
In an optional embodiment, when needing to carry out line loss calibration at least two radio-frequency transmissions ports, need pair
It is calibrated one by one at least two radio-frequency transmissions port.For each radio-frequency transmissions end of at least two radio-frequency transmissions ports
Mouthful, when needing to calibrate the radio-frequency transmissions port, which is appointed as target radio frequency emission port, it will
The target radio frequency emission port is connected with above-mentioned target radio frequency receiving port by coaxial cable.
That is to say, different radio-frequency transmissions ports needs when needing to carry out line loss calibration to different radio-frequency transmissions ports
It to be connect with the same radio frequency reception port by coaxial cable.To eliminate the inconsistent difference in radio frequency reception end.
Similarly, it when needing to carry out line loss calibration at least two radio frequency reception ports, needs at least two radio frequency
Receiving port is calibrated one by one.For each radio frequency reception port of at least two radio frequency receptions port, when needs pair
When the radio frequency reception port is calibrated, which is appointed as target radio frequency receiving port, target radio frequency is connect
Receiving end mouth is connected with above-mentioned target radio frequency emission port by coaxial cable.
That is to say, when carrying out line loss calibration to different radio frequency reception port, different radio frequency reception ports need with
The same radio-frequency transmissions port is connected by coaxial cable.To eliminate the inconsistent difference in radio-frequency transmissions end.
Corresponding with embodiment of the method, the present invention also provides a kind of channel simulator calibrating installations.Letter provided by the invention
A kind of structural schematic diagram of road simulator calibrating installation is as shown in figure 4, may include:
Monitoring modular 41, any one calibration opportunity in multiple calibration opportunitys for monitoring whether to reach preset；
Calibration module 42, for starting self-calibration function to the channel mould when reaching any one calibration opportunity
The prevention at radio-frequency port of quasi- device carries out self calibration.
Channel simulator calibrating installation provided by the invention pre-sets multiple and different self calibration opportunitys, as long as reaching
To any one opportunity, self calibration just is carried out to the prevention at radio-frequency port of channel simulator, and in the prior art only under the conditions of one kind
It carries out self calibration to compare, increases the self-alignment condition of triggering, improve the reliability of channel simulation port.
In an optional embodiment, the multiple calibration opportunity includes at least at least two in several following:
Booting；
Reach the preset time cycle in operational process；
The temperature of target monitoring point meets preset condition in operational process.
In an optional embodiment, whether temperature of the monitoring modular 41 in monitoring objective monitoring point meets preset condition
When, specifically it can be used for:
The temperature of monitoring objective monitoring point and the temperature difference of target monitoring point when preceding primary progress prevention at radio-frequency port self calibration are
It is no to reach threshold value.If monitoring result be it is yes, determine that the temperature of target monitoring point meets preset condition, it is no to be unsatisfactory for default item
Part.
In an optional embodiment, monitoring modular 41 can be also used for the prompt that output temperature difference reaches preset；
Calibration module 42 specifically can be used for: when receiving the instruction of starting port self-calibration function of user's triggering,
Starting self-calibration function is calibrated with the prevention at radio-frequency port to the channel simulator.
In an optional embodiment, monitoring modular 41 can be also used for reaching the preset time cycle in operational process
When, output reaches the prompt of preset time cycle；
Calibration module 42 specifically can be used for: when receiving the instruction of starting port self-calibration function of user's triggering,
Starting self-calibration function is calibrated with the prevention at radio-frequency port to the channel simulator.
In an optional embodiment, channel simulator calibrating installation also may include:
First configuration module, for specifying target radio frequency emission port and target radio frequency receiving port；The target radio frequency
Emission port is connected with the target radio frequency receiving port by coaxial cable；
Second configuration module needs the content calibrated and the parameter that need to be configured for obtaining；The content for needing to calibrate
It include: power and/or time delay and RF spot；The parameter that need to be configured includes: the transmitting function of target radio frequency emission port
Rate；
Calibration module 42 can be also used for: in each RF spot: according to the parameter configured, being penetrated by the target
Frequency emission port emits corresponding signal；It is received in the target radio frequency receiving port and detects the power and time delay of signal；Root
The line loss compensation value of the coaxial cable of the RF spot is corresponded to according to the power and time-delay calculation, in the radio frequency frequency
Point carries out line loss calibration to the target radio frequency emission port and/or the target radio frequency receiving port.
In an optional embodiment, when needing to carry out line loss calibration at least two radio-frequency transmissions ports, for institute
The radio-frequency transmissions port is appointed as target radio frequency transmitting by each the radio-frequency transmissions port for stating at least two radio-frequency transmissions ports
Port, the target radio frequency emission port and the target radio frequency receiving port are connected by coaxial cable.
In an optional embodiment, when needing to carry out line loss calibration at least two radio frequency reception ports, for institute
The radio frequency reception port is appointed as target radio frequency and received by each the radio frequency reception port for stating at least two radio frequency reception ports
Port, the target radio frequency receiving port and the target radio frequency emission port are connected by coaxial cable.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In several embodiments provided by the present invention, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can
To be the indirect coupling or communication connection of device or unit through some interfaces, it can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It should be appreciated that can be combined with each other combination in the embodiment of the present invention from power, each embodiment, feature, can realize
Solve aforementioned technical problem.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of channel simulator calibration method characterized by comprising
Monitor whether to reach any one calibration opportunity in preset multiple calibration opportunitys；
When reaching any one calibration opportunity, starts self-calibration function and carried out certainly with the prevention at radio-frequency port to the channel simulator
Calibration.
2. the method according to claim 1, wherein the multiple calibration opportunity includes at least: being switched on, ran
The temperature for reaching target monitoring point in preset time cycle or operational process in journey meets at least two in preset condition.
3. according to the method described in claim 2, it is characterized in that, the temperature of target monitoring point meets preset condition packet
It includes:
The temperature of the target monitoring point and the temperature difference of target monitoring point described when preceding primary progress prevention at radio-frequency port self calibration reach
To threshold value.
4. according to the method described in claim 3, it is characterized in that, in starting self-calibration function to the channel simulator
Prevention at radio-frequency port carries out before self calibration, further includes:
Output temperature difference reaches the prompt of threshold value；
When receiving the instruction of starting port self-calibration function of user's triggering, start self-calibration function to the channel mould
The prevention at radio-frequency port of quasi- device is calibrated.
5. according to the method described in claim 2, it is characterized in that, when reaching the preset time cycle in operational process,
Before starting self-calibration function with the prevention at radio-frequency port progress self calibration to the channel simulator, further includes:
Output reaches the prompt of preset time cycle；
When receiving the instruction of starting port self-calibration function of user's triggering, start self-calibration function to the channel mould
The prevention at radio-frequency port of quasi- device is calibrated.
6. the method according to claim 1, wherein further include:
Specified target radio frequency emission port and target radio frequency receiving port；The target radio frequency emission port and the target radio frequency
Receiving port is connected by coaxial cable；
It obtains and needs the content calibrated and the parameter that need to be configured；It is described that need the content calibrated include: power and/or time delay, with
And RF spot；The parameter that need to be configured includes: the transmission power of target radio frequency emission port；
In each RF spot: according to the parameter configured, emitting corresponding signal by the target radio frequency emission port；
It is received in the target radio frequency receiving port and detects the power and time delay of signal；Institute is corresponded to according to the power and time-delay calculation
State the line loss compensation value of the coaxial cable of RF spot, in the RF spot to the target radio frequency emission port
And/or the target radio frequency receiving port carries out line loss calibration.
7. according to the method described in claim 6, it is characterized in that, when needing to carry out line loss at least two radio-frequency transmissions ports
When calibration, for each radio-frequency transmissions port of at least two radio-frequency transmissions port, which is specified
For target radio frequency emission port, which is connected with the target radio frequency receiving port by coaxial cable.
8. according to the method described in claim 6, it is characterized in that, when needing to carry out line loss at least two radio frequency reception ports
When calibration, for each radio frequency reception port of at least two radio frequency reception port, which is specified
For target radio frequency receiving port, which is connected with the target radio frequency emission port by coaxial cable.
9. a kind of channel simulator calibrating installation characterized by comprising
Monitoring modular reaches any one calibration opportunity in preset multiple calibration opportunitys for monitoring whether；
First calibration module, for starting self-calibration function to the channel simulation when reaching any one calibration opportunity
The prevention at radio-frequency port of device carries out self calibration.
10. device according to claim 9, which is characterized in that further include:
Second calibration module, for specifying target radio frequency emission port and target radio frequency receiving port；The target radio frequency transmitting
Port is connected with the target radio frequency receiving port by coaxial cable；It obtains and needs the content calibrated and the parameter that need to be configured；
The content that the needs are calibrated includes: power and/or time delay and RF spot；The parameter that need to be configured includes: that target is penetrated
The transmission power of frequency emission port；In each RF spot: according to the parameter configured, passing through the target radio frequency transmitting terminal
Mouth emits corresponding signal；It is received in the target radio frequency receiving port and detects the power and time delay of signal；According to the function
Rate and time-delay calculation correspond to the line loss compensation value of the coaxial cable of the RF spot, in the RF spot to described
Target radio frequency emission port and/or the target radio frequency receiving port carry out line loss calibration.
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Cited By (1)
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| CN113938167A (en) * | 2021-10-22 | 2022-01-14 | 上海创远仪器技术股份有限公司 | System, method and device for realizing calibration of external cable of 5G MIMO channel simulator, processor and storage medium thereof |
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