CN107317609A - Efficiency is wirelessly transferred to judge equipment and be wirelessly transferred efficiency determination methods - Google Patents
Efficiency is wirelessly transferred to judge equipment and be wirelessly transferred efficiency determination methods Download PDFInfo
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- CN107317609A CN107317609A CN201710564073.7A CN201710564073A CN107317609A CN 107317609 A CN107317609 A CN 107317609A CN 201710564073 A CN201710564073 A CN 201710564073A CN 107317609 A CN107317609 A CN 107317609A
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- efficiency
- radio receiver
- wirelessly transferred
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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
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
One kind is wirelessly transferred efficiency and judges equipment and be wirelessly transferred efficiency determination methods, including：Radio receiver, it has at least two reception antennas；Control unit, located at radio receiver；Radio transmission device, it has at least two transmitting antennas；And efficiency judging unit, it is connected with radio receiver, and the error vector magnitude of the wireless signal received from radio transmission device is obtained by radio receiver；Control unit is controlled by efficiency judging unit and changes the radiation characteristic of at least two reception antennas according to error vector magnitude, to change the channel matrix that at least two reception antennas and at least two transmitting antennas are constituted；Efficiency judging unit obtains physical layer data rate from the physical layer of radio receiver, and is wirelessly transferred handling capacity using the physical layer data rate as judge radio receiver.Improve the communication efficiency of MIMO systems；User is improved to the expectable degree of performance of product, the research and development criterion of enhanced products performance.
Description
Technical field
The invention belongs to radio transmission technical field, and in particular to one kind is wirelessly transferred efficiency and judges equipment, and also relates to
And it is wirelessly transferred efficiency determination methods.
Background technology
As is known in the industry, between wireless device message transmission rate or the quality and wireless device sheet of transmission signal
The efficiency of body and its residing environment are relevant.What manufacturers of wireless devices can be controlled is the efficiency of wireless device in itself (by setting
Meter, improvement), and then belonging to the problem of use environment need to make an uproar in product design to the mutual interference between such as same apparatus, environment
Acoustic jamming, fading channel and channel multi-path effect etc be unfavorable for data transmission bauds and transmission signal quality because
Have and predict the category that professional etiquette of going forward side by side is drawn, such as can be according to communication standard (such as IEEE 802.11) when product volume production is tested
Measure the error vector magnitude (Error Vector Magnitude, EVM) for receiving signal and use determination signal and receive and hair
The quality sent.It is directly related that what signal transmission quality and wireless device can reach is wirelessly transferred handling capacity.But, in actual production
Product are in use, because environmental factor (such as multi-path effect) can produce large effect to being wirelessly transferred handling capacity, thus
The efficiency that is wirelessly transferred for actual use is not easy precisely to assess, and technical scheme described below is this
Produced under background.
The content of the invention
The task of the present invention is that providing one kind is conducive to being wirelessly transferred handling capacity sentencing using physical layer data rate
Break and change access matrix using the radiation characteristic for changing reception antenna and use and improve the logical of MIMO systems
The efficiency that is wirelessly transferred of news efficiency judges equipment and is wirelessly transferred efficiency determination methods.
What the task of the present invention was performed by, one kind is wirelessly transferred efficiency and judges equipment, including：
One radio receiver, the radio receiver has at least two reception antennas；
One control unit, the control unit is arranged at the radio receiver；
One radio transmission device, the radio transmission device has at least two transmitting antennas, at least two transmitting antenna and institute
At least two reception antennas are stated to constitute a MIMO systems and use to the radio receiver and transmit a nothing
Line signal；And
One efficiency judging unit, the efficiency judging unit is connected with the radio receiver and the efficiency judging unit has
One application layer software, the one of the wireless signal received from the radio transmission device is obtained by the radio receiver
Error vector magnitude；
Wherein, described control unit be controlled by the efficiency judging unit and according to the error vector magnitude change described at least
The radiation characteristic of two reception antennas, to change at least two reception antenna and at least two transmitting antennas are constituted
Channel matrix and use the reduction error vector magnitude；
Wherein, the efficiency judging unit obtains a physical layer data rate from a physical layer of the radio receiver, and with
The physical layer data rate is wirelessly transferred handling capacity as judge radio receiver one.
In the specific embodiment of the present invention, wireless signal is orthogonal amplitude modulating and changing (QAM) signal.
It is described when the error vector magnitude is more than a setting value in another specific embodiment of the present invention
Control unit is controlled by the efficiency judging unit to change the radiation characteristic of at least two reception antenna, uses lifting institute
The signal collection size of the wireless signal of the capable demodulation of radio receiver is stated, the signal collection size of the wireless signal is
N, the wireless signal is referred to as N-QAM.
In another specific embodiment of the present invention, the wireless signal meets international motor electronic Engineering society
(IEEE) IEEE 802.11n or IEEE 802.11ac standards defined in.
In another specific embodiment of the present invention, described control unit independence and the wireless receiving is not controlled by
One wireless chip of device, the wireless chip is to demodulate the wireless signal, and the physical layer data rate of the physical layer is by bearing
The wireless chip of the duty demodulation wireless signal is obtained.
What another task of the present invention was performed by, one kind is wirelessly transferred efficiency determination methods, by with an application
One efficiency judging unit of layer software is performed, and the efficiency judging unit connects a radio receiver, the radio transmitting method
Including：
One is constituted by least two reception antennas of radio receiver and at least two transmitting antennas of a radio transmission device
MIMO systems；
An error vector width is obtained according to the wireless signal that the radio receiver is received from the radio transmission device
Degree；
Be arranged at the radio receiver a control unit be controlled by the efficiency judging unit with according to the error to
Discharge amplitude changes the radiation characteristic of at least two reception antenna, with change at least two reception antenna and it is described extremely
The channel matrix that few two transmitting antennas are constituted, uses and reduces the error vector magnitude；And
A physical layer data rate is obtained from a physical layer of the radio receiver, and judgement is used as using the physical layer data rate
The one of radio receiver is wirelessly transferred handling capacity.
In the also specific embodiment of the present invention, wireless signal is orthogonal amplitude modulating and changing (QAM) signal.
In a still more specific embodiment of the invention, when the error vector magnitude is more than a setting value, institute
State control unit and be controlled by the efficiency judging unit to change the radiation characteristic of at least two reception antenna, use lifting
The signal collection size of the wireless signal of the capable demodulation of the radio receiver, the signal collection size of the wireless signal
For N, the wireless signal is referred to as N-QAM.
The present invention's and then in a specific embodiment, wireless signal meets international motor electronic Engineering society
(IEEE) IEEE 802.11n or IEEE 802.11ac standards defined in.
Described control unit independence and it is not controlled by described wireless in yet a further embodiment of the present invention
One wireless chip of reception device, the wireless chip to demodulate the wireless signal, the physical layer data rate of the physical layer by
The wireless chip for being responsible for the demodulation wireless signal is obtained.
Technical scheme that the present invention is provided has technical effect that：Due to make use of physical layer data rate to replace multiple input
Change the radiation characteristic of reception antenna to change passage to being wirelessly transferred the estimation of handling capacity, and utilizing in multiple output system
Matrix, thus it is able to significantly improve the communication efficiency of MIMO systems.Whether gone back in the volume production test of product
Be in actual product in use, wireless device judge it is rational (relative to it is various can not expected transmission environment) it is wireless
Throughput of transmissions, can not only improve performance expectable degree of the user to product, and can be further used as enhanced products
The research and development criterion of performance.
Brief description of the drawings
Fig. 1 is provided in an embodiment of the present invention to be wirelessly transferred the schematic diagram that efficiency judges equipment.
Fig. 2 is the flow chart provided in an embodiment of the present invention for being wirelessly transferred efficiency determination methods.
Embodiment
For enable be further understood that the present invention feature and technology contents, refer to below in connection with the present invention specifically
Bright and accompanying drawing, but these explanations are intended merely to the explanation present invention with institute's accompanying drawings, rather than the interest field of the present invention is appointed
What limitation.
Refer to Fig. 1, show the present invention be wirelessly transferred efficiency judge equipment structural system radio receiver 11,
Control unit 12, radio transmission device 13 and efficiency judging unit 14.Radio receiver 11 has at least two to receive day
Line.Control unit 12 is arranged at radio receiver 11.Radio transmission device 13 have at least two transmitting antennas, it is described at least
At least two reception antennas of two transmitting antennas and radio receiver 11 constitute multi-input multi output (Multiple
Input Multiple Output, MIMO) system, to transmit wireless signal to radio receiver.Foregoing multiple input is more
Weight output system is including receiving with transmitting, using radio receiver 11 as receiving terminal in the present embodiment, and effect is received to assess it
Energy.Namely the present embodiment eliminates efficiency situation of the description radio receiver 11 when as transmission end.Art technology
Personnel should be understood that in practical application, for whole MIMO systems, assesses receiving efficiency and is passed than assessing
It is more helpful (wireless signal, which will be received, to be obtained and have method demodulation to be only effective signal) to send efficiency.
Efficiency judging unit 14 connects radio receiver 11, with application layer software, and efficiency judging unit 14 more can be with
Including hardware or firmware, that is to say, that efficiency judging unit 14 can only be application layer software or hardware (or
Firmware) with the combination of application layer software.Such as efficiency judging unit 14 can include One function chip (not shown) with unification
Individual carry is in an application software (application layer software) of the operating system of radio receiver 11, or application layer software is to repair
It is changed to be installed on the supervising device (such as personal computer) online with radio receiver 11, but therefore the present invention does not limit.
Efficiency judging unit 14 is obtained the error vector width of the wireless signal received from radio transmission device 13 by radio receiver
Degree.The control unit 12 of radio receiver 11 be controlled by efficiency judging unit 14 with according to error vector magnitude change described in extremely
The radiation characteristic of few two reception antennas, to change described at least two reception antenna and radio transmission device 13 at least
The channel matrix that two transmitting antennas are constituted, uses reduction error vector magnitude.Received preferably, changing described at least two
The mode of the radiation characteristic of antenna is to change the radiation pattern of at least two reception antenna, e.g. changes directive property, increases
Beneficial maximum direction, but the present invention not therefore restriction.
Furthermore, physical layer (physical layer, by open system of the efficiency judging unit 14 from radio receiver 11
System interconnection communication reference model (OSI) is defined) physical layer data rate (PHY data rate) is obtained, and with physical layer data
Rate is wirelessly transferred handling capacity (throughput) as judge radio receiver 11.Compared to detection radio receiver 11
Be wirelessly transferred handling capacity can be potentially encountered measuring value caused by system hardware and software is integrated and it is incorrect (because of chip efficiency or
Difference caused by being integrated with measurement system), or because measuring external environment state and unstable (may have and expected can not change
Become, for example, disturb) caused by for the problem of handling capacity is unstable that be wirelessly transferred that detects, the present embodiment is using substantially taking
Obtain physical layer data rate and obtain quite correctly being wirelessly transferred measures of effectiveness.
In the above-described embodiments, wireless signal is orthogonal amplitude modulating and changing (Quadrature Amplitude
Modulation, QAM) signal, when error vector magnitude is more than setting value, control unit 12 is controlled by efficiency judging unit 14
To change the radiation characteristic of at least two reception antenna, the wireless communication that lifting radio receiver 11 has the ability to demodulate is used
Number signal collection size, wherein the signal of described wireless signal integrates size as N, and wireless signal is then referred to as N-QAM, for example
The 256Q-AM that the 64-QAM or IEEE 802.11ac highests that IEEE 802.11n highests are supported are supported.In exemplary example
In, wireless signal is, for example, to meet IEEE 802.11n or IEEE defined in international motor electronic Engineering society (IEEE)
802.11ac standards, but the present invention not therefore restriction.Wireless signal can also be Long Term Evolution (LTE) signal, or
Person is the signal of following 5th generation mobile communication system.
Also, preferably, the only side of control unit 12 of above-described embodiment and it is not controlled by the wireless of radio receiver 11
Chip (not shown), the wireless chip is to demodulate wireless signal, and the physical layer data rate of physical layer demodulates nothing by being responsible for
The wireless chip of line signal is obtained.For example, control unit 12 is independently of outside general common wireless chip, it is an independence
The separate unit operated in wireless chip, e.g. one microprocessor (MCU).Control control unit 12 is that efficiency judges single
Member 14.
The embodiment of the present invention also provides one kind and is wirelessly transferred efficiency determination methods, please also refer to Fig. 1 and Fig. 2, the method
The efficiency that is wirelessly transferred for applying to Fig. 1 embodiments judges equipment, flow chart as shown in Figure 2, by with application layer software
Efficiency judging unit 14 is performed, the connection radio receiver 11 of efficiency judging unit 14.The method comprises the following steps.First,
In step s 110, at least two transmission days of at least two reception antennas of radio receiver 11 and radio transmission device 13
Line constitutes MIMO systems.Then, in the step s 120, according to radio receiver 11 from radio transmission device
13 wireless signals received obtain error vector magnitude.Then, in step s 130, it is arranged at the control of radio receiver 11
Unit 12 processed is controlled by efficiency judging unit 14 to change the radiation of at least two reception antenna according to error vector magnitude
Characteristic, to change the channel that at least two transmitting antennas of at least two reception antenna and radio transmission device 13 are constituted
Matrix, uses reduction error vector magnitude.Then, in step S140, physics is obtained from the physical layer of radio receiver 11
Layer data rate, and it is wirelessly transferred handling capacity using physical layer data rate as judge radio receiver 11.In another embodiment
In, above-mentioned step S110, S120, S130 and S140 can be combined into circulating algorithm, and the present invention, which is not also limited, to be constituted
The circulation framework of algorithm, mainly in response to can be changed with needs.
Preferably, the above-mentioned wireless signal for being wirelessly transferred efficiency determination methods is orthogonal amplitude modulating and changing (QAM) signal.When by mistake
When vector magnitude is more than setting value, control unit 12 is controlled by efficiency judging unit 14 and receives day to change described at least two
The radiation characteristic of line, uses the signal collection size of the wireless signal of the capable demodulation of lifting radio receiver 11, wherein wirelessly
The signal of signal integrates size as N, and wireless signal is referred to as N-QAM.Also, preferably, wireless signal meets international motor electronic
IEEE 802.11n or IEEE 802.11ac standards defined in Engineering society (IEEE).Preferably, control unit 12 it is independent and
The wireless chip (not shown) of radio receiver 11 is not controlled by, wireless chip is to demodulate wireless signal, the thing of physical layer
Layer data rate is managed to be obtained by the wireless chip for being responsible for demodulation wireless signal.
Claims (10)
1. one kind, which is wirelessly transferred efficiency, judges equipment, it is characterised in that including：
One radio receiver, the radio receiver has at least two reception antennas；
One control unit, the control unit is arranged at the radio receiver；
One radio transmission device, the radio transmission device has at least two transmitting antennas, at least two transmitting antenna and institute
At least two reception antennas are stated to constitute a MIMO systems and use to the radio receiver and transmit a nothing
Line signal；And
One efficiency judging unit, the efficiency judging unit is connected with the radio receiver and the efficiency judging unit has
One application layer software, the one of the wireless signal received from the radio transmission device is obtained by the radio receiver
Error vector magnitude；
Wherein, described control unit be controlled by the efficiency judging unit and according to the error vector magnitude change described at least
The radiation characteristic of two reception antennas, to change at least two reception antenna and at least two transmitting antennas are constituted
Channel matrix and use the reduction error vector magnitude；
Wherein, the efficiency judging unit obtains a physical layer data rate from a physical layer of the radio receiver, and with
The physical layer data rate is wirelessly transferred handling capacity as judge radio receiver one.
2. the efficiency according to claim 1 that is wirelessly transferred judges equipment, it is characterised in that wireless signal is adjusted for orthogonal amplitude
Varying signal.
3. the efficiency according to claim 1 that is wirelessly transferred judges equipment, it is characterised in that when the error vector magnitude is big
When a setting value, described control unit is controlled by the efficiency judging unit to change the spoke of at least two reception antenna
Characteristic is penetrated, the signal collection size for the wireless signal for lifting the capable demodulation of the radio receiver is used, it is described wireless
The signal of signal integrates size as N, and the wireless signal is referred to as N-QAM.
4. the efficiency that is wirelessly transferred according to claim 1 or 2 or 3 judges equipment, it is characterised in that the wireless signal symbol
Close IEEE 802.11n or IEEE 802.11ac standards defined in international motor electronic Engineering society.
5. the efficiency according to claim 1 that is wirelessly transferred judges equipment, it is characterised in that described control unit is independent and not
It is controlled by a wireless chip of the radio receiver, the wireless chip is to demodulate the wireless signal, the physical layer
Physical layer data rate obtained by the wireless chip for being responsible for the demodulation wireless signal.
6. one kind is wirelessly transferred efficiency determination methods, performed by the efficiency judging unit with an application layer software, the efficiency
Judging unit connects a radio receiver, it is characterised in that the efficiency determination methods that are wirelessly transferred include：
One is constituted by least two reception antennas of radio receiver and at least two transmitting antennas of a radio transmission device
MIMO systems；
An error vector width is obtained according to the wireless signal that the radio receiver is received from the radio transmission device
Degree；
Be arranged at the radio receiver a control unit be controlled by the efficiency judging unit with according to the error to
Discharge amplitude changes the radiation characteristic of at least two reception antenna, with change at least two reception antenna and it is described extremely
The channel matrix that few two transmitting antennas are constituted, uses and reduces the error vector magnitude；And
A physical layer data rate is obtained from a physical layer of the radio receiver, and judgement is used as using the physical layer data rate
The one of radio receiver is wirelessly transferred handling capacity.
7. according to claim 6 be wirelessly transferred efficiency determination methods, it is characterised in that wireless signal is adjusted for orthogonal amplitude
Varying signal.
8. according to claim 6 be wirelessly transferred efficiency determination methods, it is characterised in that when the error vector magnitude is big
When a setting value, described control unit is controlled by the efficiency judging unit to change the spoke of at least two reception antenna
Characteristic is penetrated, the signal collection size for the wireless signal for lifting the capable demodulation of the radio receiver is used, it is described wireless
The signal of signal integrates size as N, and the wireless signal is referred to as N-QAM.
9. it is wirelessly transferred efficiency determination methods according to claim 6 or 7 or 8, it is characterised in that wireless signal meets state
IEEE 802.11n or IEEE 802.11ac standards defined in the motor electronic Engineering society of border.
10. according to claim 6 be wirelessly transferred efficiency determination methods, it is characterised in that described control unit is independent and not
Be controlled by a wireless chip of the radio receiver, the wireless chip to demodulate the wireless signal, the physical layer
Physical layer data rate is obtained by the wireless chip for being responsible for the demodulation wireless signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710564073.7A CN107317609B (en) | 2017-07-12 | 2017-07-12 | Wireless transmission efficiency judging device and wireless transmission efficiency judging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564073.7A CN107317609B (en) | 2017-07-12 | 2017-07-12 | Wireless transmission efficiency judging device and wireless transmission efficiency judging method |
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| Publication Number | Publication Date |
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| CN107317609A true CN107317609A (en) | 2017-11-03 |
| CN107317609B CN107317609B (en) | 2020-02-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112511248A (en) * | 2020-11-30 | 2021-03-16 | 重庆电子工程职业学院 | Wireless transmission efficiency judging device and wireless transmission efficiency judging method |
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| CN103780295A (en) * | 2009-09-29 | 2014-05-07 | 索尼公司 | Wireless transmission system |
| US20160302028A1 (en) * | 2012-02-15 | 2016-10-13 | Maxlinear, Inc. | Method and system for broadband near-field communication (bnc) utilizing full spectrum capture (fsc) supporting bridging across wall |
| CN103414526A (en) * | 2013-07-24 | 2013-11-27 | 福建星网锐捷通讯股份有限公司 | Test system and test method of radio frequency identification index |
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| CN112511248A (en) * | 2020-11-30 | 2021-03-16 | 重庆电子工程职业学院 | Wireless transmission efficiency judging device and wireless transmission efficiency judging method |
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| CN107317609B (en) | 2020-02-28 |
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