CN107708134A - The passive covering method of millimeter wave indoor intelligent - Google Patents
The passive covering method of millimeter wave indoor intelligent Download PDFInfo
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- CN107708134A CN107708134A CN201711125430.6A CN201711125430A CN107708134A CN 107708134 A CN107708134 A CN 107708134A CN 201711125430 A CN201711125430 A CN 201711125430A CN 107708134 A CN107708134 A CN 107708134A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000033228 biological regulation Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 238000002310 reflectometry Methods 0.000 claims description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 2
- 230000011514 reflex Effects 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000010287 polarization Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
- H04W16/20—Network planning tools for indoor coverage or short range network deployment
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The passive covering method of millimeter wave indoor intelligent is in direct projection area（21）Covered using direct irradiation, in shadow region（22）Using passive reflector（3）Irradiation covering；From base station（1）Signal passes through passive reflector（3）Reflection, the position that the millimeter wave such as door and window through interior readily penetrates through, reach shadow region（22）；Passive reflector（3）Position cause base station（1）Signal passes through passive reflector（3）To shadow region（22）Path（5）Total reflection number as far as possible less, total distance it is as short as possible；Passive reflector（3）Back wave（6）Beam direction（61）, number of beams and polarised direction（62）Adjustment in real time can be needed to change according to business.This method can reduce millimeter wave path loss, improve mimo channel independence, and can according to business needs, adjust shadow region in real time（22）Number of beams and characteristic；With energy-conservation, working band is wide, cost is low the characteristics of, be easy to merge with existing indoor environment.
Description
Technical field
The present invention relates to mobile communication, especially a kind of passive covering method of millimeter wave indoor intelligent.
Background technology
The speed more and more higher of mobile communication, in order to meet the needs of high-speed, the working frequency of mobile communication is also more next
It is higher, enter millimeter wave frequency band.Relative to the relatively low electromagnetic wave of frequency, the path loss of millimeter wave is bigger, especially
Because wavelength ratio is shorter, barrier block influence it is also bigger.Indoors, the cut-off between each room constitutes millimeter wave
The barrier of propagation, millimeter wave are difficult to penetrate wall, although having open doors or window, because millimeter wave diffracting power is weak,
Straightline propagation is strong, it is generally difficult to which beam direction is just directed at door and window, therefore the shadow region ratio of the covering of millimeter wave indoors
It is more.Even in direct projection area, the quantity of scattering object and intensity are all undesirable sometimes, also influence channel capacity.
In order to improve the coverage effect in shadow region, the method for generally use active relaying, such as repeater.Sometimes directly increase
Add base station to reduce the scope in shadow region.These method power consumptions are high, cost is also high.And can not according to the dynamic change of business,
Regulation junction parameter in real time.
With the development of mobile communication technology, multiple-input and multiple-output（MIMO）Technology has obtained more and more extensive application.
MIMO technology requires that the independence between multiple channels is strong, therefore the covering of millimeter wave will not only solve path loss asking greatly
Topic, will also solve the problems, such as mimo channel independence.
The content of the invention
Technical problem:The purpose of the present invention is to propose to a kind of passive covering method of millimeter wave indoor intelligent, this method can be with
Improve the path loss in shadow region, improve channel capacity, and the dynamic regulation characteristic of channel can be needed according to business, there is section
Can, the characteristics of working band is wide, cost is low, and be easy to merge with existing indoor environment.
Technical scheme：The passive covering method of millimeter wave indoor intelligent of the present invention uses direct irradiation covering side in direct projection area
Method, the method in shadow region using passive reflector irradiation covering, to improve the signal intensity in shadow region, improves the letter in shadow region
Road characteristic；Passive reflector includes one-level passive reflector and multistage passive reflector；Signal from base station is by passive anti-
The reflection of emitter, the position readily penetrated through through millimeter waves such as indoor door and windows, reach shadow region；The position of passive reflector causes
Base station signal by passive reflector to shadow region path total reflection number as far as possible less, total distance it is as short as possible, with reduction
The total path loss in path；Beam direction, number of beams and the polarised direction of the back wave of passive reflector can adjust in real time
Change；
Beam direction, the quantity and polarised direction of wave beam of passive reflector ripple according to business needs, can be changed in real time,
To adjust or improve base station to characteristics such as the path losses, angle of arrival, channel relevancy of its shadow region channel.
Base station can be in outdoor, can also be indoors；If the position of base station is indoors, base station will be as far as possible positioned at interior
There is no the intersection in the corridor of shelter, or positioned at the neighbouring indoor open place without shelter, it is straight in service area to cause
Penetrate that the region shared by area is larger, while also allow for base station signal by order of reflection as few as possible and path as short as possible just
Shadow region can be reached, to reduce the total path loss in path.
One-level passive reflector is located at the direct projection area of base station, and the direct signal of base station is reflexed to the moon by one-level passive reflector
Shadow zone；Multistage passive reflector is located at the shadow region of base station；One-level passive reflector and the multiple relay of multistage passive reflector are anti-
Penetrate, the electromagnetic wave signal of base station can be sent in the shadow region for having to pass through multiple reflections and getting to.
Using multigroup passive reflector, same shadow region can form a plurality of path from base station to the shadow region,
Further to improve the characteristic such as the path loss of channel, channel relevancy between base station and the shadow region.
The passive reflector of different reflector shapes can be used, obtains the reflection of different beams direction and polarised direction
Ripple, and then by selecting and adjusting the reflector shape of passive reflector, regulation reaches the beam angle in shadow region, to improve letter
The characteristics such as the path loss in road, angle of arrival, channel relevancy.
Passive reflector both can be the passive reflector being specifically manufactured, and can also use ground, ceiling, the wall of interior
The object of the naturally occurrings such as wall cut-off is as passive reflector；The wall partition of interior can also be surface-treated, changed
Its shape is formed to improve reflectivity with forming the passive reflector of required shape, changing its surfacing, changes its surface light
Slippery is to improve reflectivity；The passive reflector being specifically manufactured can be with separately installed wall or ceiling indoors.
In order to improve the characteristic of channel in direct projection area, according to multiple-input and multiple-output（MIMO）Requirement, can also be in direct projection area
Using passive reflector, increase propagation path quantity, to reduce the correlation of channel, there is provided channel capacity.
Reflector surface of different shapes, produce the back wave of different characteristics, it is however generally that, convex surface can cause back wave
Beam broadening dissipates, and concave surface can cause the wave beam of back wave narrows to focus on focus area.According to base station and the space in shadow region
Relation, the scope in shadow region, the passive reflector of multiple various shapes can be used, the electromagnetic wave from base station, pass through difference
The passive reflector of shape, carry out the conversion such as the direction of wave beam, width, Jiao Qu so that when wave beam is to shadow region, the width of wave beam
Scope is as consistent with the scope in shadow region as possible, and the decay of base station to shadow region channel is as small as possible.
The a plurality of propagation path from base station to shadow region can be formed using passive reflector, is so not only utilized as far as possible
The electromagnetic wave energy of base station, but also diversity reception performance can be improved, improve base station to the characteristic of shadow region mimo channel, example
Such as reduce the correlation between channel.
Passive reflector quantity and the determination principle of position are：1）Meet that overlay area requires；2）From base station to shadow region
Path loss it is minimum.
According to the requirement of shadow region signal intensity, the size of passive reflector is determined.
Passive reflector can use radar reflection section to the albedo of signal（RCS）Characterize, the thunder of passive reflector
It is relevant with its area, shape, surfacing and signal frequency up to reflecting section.Generally, for the passive reflector of plane,
Its radar reflection section and frequency it is square directly proportional.Because millimeter-wave frequency is high, therefore the passive reflector of same area, its
It is very strong to the albedo of millimeter-wave signal, so substantially increase covering power of the passive reflector to shadow region.
MIMO requires that the independence between each channel is strong, that is, channel relevancy is weak, and the correlation of channel and biography
Broadcast that scattering object quantity in path is relevant, and also the intensity with scattered wave, direction, polarization are relevant.Passive reflector is also a kind of
Scattering object, therefore the ripple of one or more passive reflector ripples according to the business need of different zones, can be changed in real time
Shu Fangxiang, number of beams and polarization, to adjust or improve base station to the characteristic of the regional channel, for example (,) it is only between channel
Vertical property, path loss, number of paths etc..
Beneficial effect：The beneficial effect of the passive covering method of millimeter wave indoor intelligent of the present invention is that this method can subtract
The path loss of few millimeter wave propagation, reduces fissipation factor, improves the path loss in shadow region, can also improve mimo channel
Independence, and can be according to business needs, the number of beams and characteristic in real-time regulation shadow region；With energy-conservation, working band it is wide, into
The characteristics of this is low, and be easy to merge with existing indoor environment.
Brief description of the drawings
Fig. 1 is the passive covering method schematic diagram of millimeter wave indoor intelligent.
Fig. 2 is the schematic diagram of passive reflector.
Have in figure：Base station 1, service area 2, direct projection area 21, shadow region 22, passive reflector 3, one-level passive reflector 31,
Multistage passive reflector 32, path 4, back wave 6, beam direction 61 and polarised direction 62.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment of the present invention is：The passive covering method of millimeter wave indoor intelligent is in direct projection area 21 using direct
Covering method is irradiated, the method in shadow region 22 using the irradiation covering of passive reflector 3 is strong to improve the signal in shadow region 22
Degree, improve the characteristic of channel in shadow region 22；Passive reflector 3 includes one-level passive reflector 31 and multistage passive reflector 32；
Signal from base station 1 passes through the reflection of passive reflector 3, the position readily penetrated through through millimeter waves such as indoor door and windows, reaches
Shadow region 22；The position of passive reflector 3 causes total reflection of the signal of base station 1 by passive reflector 3 to the path 4 of shadow region 22
As far as possible less, always distance is as short as possible for number, to reduce the total path loss in path 4；The wave beam of the back wave of passive reflector 3
Direction, number of beams and polarised direction can adjust change in real time；
The beam direction 61 of the back wave 6 of passive reflector 3, the quantity of wave beam and polarization can be changed in real time according to business needs
Direction 62, to adjust or improve base station 1 to characteristics such as the path losses, angle of arrival, channel relevancy of its channel of shadow region 22.
Base station 1 can be in outdoor, can also be indoors；If the position of base station 1 is indoors, base station 1 will be located at as far as possible
The intersection in the indoor corridor without shelter, or positioned at the neighbouring indoor open place without shelter, to cause service area 2
Region shared by interior direct projection area 21 is larger, while also allows for base station 1 signal by order of reflection as few as possible and as short as possible
Path 4 can reach shadow region 22, to reduce the total path loss in path 4.
One-level passive reflector 31 is located at the direct projection area 21 of base station 1, direct signal of the one-level passive reflector 31 base station 1
Reflex to shadow region 22；Multistage passive reflector 32 is located at the shadow region 22 of base station 1；One-level passive reflector and multistage are passive anti-
The multiple relay reflection of emitter, can send the electromagnetic wave signal of base station 1 in the shadow region for having to pass through multiple reflections and getting to
22。
Using multigroup passive reflector 3, same shadow region 22 can be formed it is a plurality of from base station 1 to the shadow region 22
Path 4, further to improve the characteristic such as the path loss of channel, channel relevancy between base station 1 and the shadow region 22.
The passive reflector 3 of different reflector shapes can be used, obtains different beams direction 61 and polarised direction 62
Back wave 6, and then by selecting and adjusting the shape of reflecting surface 3 of passive reflector, regulation reaches the beam angle in shadow region 22,
To improve the characteristics such as the path loss of channel, angle of arrival, channel relevancy.
Passive reflector 3 both can be the passive reflector 3 being specifically manufactured, and can also use ground, ceiling, interior
The object of the naturally occurrings such as wall partition is as passive reflector 3；The wall partition of interior can also be surface-treated, changed
Become its shape and formed with forming the passive reflector 3 of required shape, changing its surfacing to improve reflectivity, change its surface
Smoothness is to improve reflectivity；The passive reflector 3 being specifically manufactured can be with separately installed wall or ceiling indoors.
In order to improve the characteristic of channel in direct projection area, according to multiple-input and multiple-output MIMO requirement, can also make in direct projection area
With passive reflector 3, increase the quantity of propagation path 4, to reduce the correlation of channel, there is provided channel capacity.
Reflector surface of different shapes, produce the back wave 6 of different characteristics, it is however generally that, convex surface can cause back wave 6
Beam broadening diverging, concave surface can cause the wave beam of back wave 6 narrows to focus on focus area.According to base station 1 and shadow region 22
Spatial relationship, the scope in shadow region 22, the passive reflector 3 of multiple various shapes can be used, the electromagnetism from base station 1
Ripple, by passive reflector 3 of different shapes, carry out the conversion such as the beam direction 61 of back wave 6, width, Jiao Qu so that back wave
6 when arriving shadow region 22, and the width range of wave beam is as consistent with the scope in shadow region 22 as possible, base station 1 to the channel of shadow region 22
Decay is as small as possible.
The a plurality of propagation path 4 from base station 1 to shadow region 22 can be formed using passive reflector 3, so not only to the greatest extent may be used
The electromagnetic wave energy using base station 1 more than energy, but also diversity reception performance can be improved, improve base station 1 to shadow region 22
The characteristic of mimo channel, such as reduce the correlation between channel.
The quantity of passive reflector 3 and the determination principle of position are：1）Meet that overlay area requires；2）From base station 1 to shade
The path loss in area 22 is minimum.
According to the requirement of the signal intensity of shadow region 22, the size of passive reflector 3 is determined.
Passive reflector 3 can use radar reflection section to the albedo of signal（RCS）Characterize, passive reflector 3
Radar reflection section is relevant with its area, shape, surfacing and signal frequency.Generally, for the passive reflective of plane
Device 3, its radar reflection section and frequency it is square directly proportional.Because millimeter-wave frequency is high, therefore the passive reflective of same area
Device 3, its albedo to millimeter-wave signal is very strong, so substantially increases covering energy of the passive reflector 3 to shadow region 22
Power.
MIMO requires that the independence between each channel is strong, that is, channel relevancy is weak, and the correlation of channel and biography
Broadcast that scattering object quantity in path is relevant, and also the intensity with scattered wave, direction, polarization are relevant.Passive reflector 3 and one kind
Scattering object, therefore one or more back waves 6 of passive reflector 3 can be changed in real time according to the business need of different zones
Beam direction 61, number of beams and polarised direction 62, to adjust or improve base station to the characteristic of the regional channel, such as channel it
Between independence, path loss, number of paths etc..
Manual electromagnetic structure, PIN switching tubes and the varactor of sub-wavelength can be utilized, forms beam direction, wave beam
The passive reflector 3 of quantity and polarization type restructural, it is possible to the ripple of the back wave 6 of remote control restructural passive reflector 3
Shu Fangxiang 61, quantity and back wave 6 polarised direction 62.
In accordance with the above, the present invention can be realized.
Claims (6)
1. the passive covering method of millimeter wave indoor intelligent is in direct projection area（21）Using direct irradiation covering method, in shadow region（22）
Using passive reflector（3）The method of covering is irradiated, to improve shadow region（22）Signal intensity, improve shadow region（22）Letter
Road characteristic；Passive reflector（3）Including one-level passive reflector（31）With multistage passive reflector（32）；From base station（1）'s
Signal passes through passive reflector（3）Reflection, the position readily penetrated through through millimeter waves such as indoor door and windows, reach shadow region
（22）；Passive reflector（3）Position cause base station（1）Signal passes through passive reflector（3）To shadow region（22）Path（4）'s
As far as possible less, always distance is as short as possible for total reflection number, to reduce path（4）Total path loss；Passive reflector（3）It is anti-
Beam direction, number of beams and the polarised direction of ejected wave can adjust change in real time；
Passive reflector can be changed in real time according to business needs（3）Back wave（6）Beam direction（61）, wave beam quantity
And polarised direction（62）, to adjust or improve base station（1）To its shadow region（22）Path loss, angle of arrival, the channel phase of channel
The characteristics such as closing property.
A kind of 2. passive covering method of millimeter wave indoor intelligent according to claim 1, it is characterised in that base station（1）Can be with
, can also be indoors in outdoor；If base station（1）Position indoors, base station（1）There is no shelter positioned at interior as far as possible
Corridor intersection, or positioned at nearby without shelter indoor open place, to cause service area（2）Interior direct projection area（21）
Shared region is larger, while also allows for base station（1）Signal passes through order of reflection as few as possible and path as short as possible（4）
Can reaches shadow region（22）, to reduce path（4）Total path loss.
3. a kind of passive covering method of millimeter wave indoor intelligent according to claim 1, it is characterised in that one-level is passive anti-
Emitter（31）Positioned at base station（1）Direct projection area（21）, one-level passive reflector（31）Base station（1）Direct signal reflex to the moon
Shadow zone（22）；Multistage passive reflector（32）Positioned at base station（1）Shadow region（22）；One-level passive reflector and multistage are passive anti-
The multiple relay reflection of emitter, can be base station（1）Electromagnetic wave signal be sent to and have to pass through the shade that multiple reflections are got to
Area（22）.
4. a kind of passive covering method of millimeter wave indoor intelligent according to claim 1, it is characterised in that utilize multigroup
Passive reflector（3）, same shadow region（22）It can be formed a plurality of from base station（1）To the shadow region（22）Path（4）, with
Further improve base station（1）With the shadow region（22）Between the characteristic such as the path loss of channel, channel relevancy.
5. a kind of passive covering method of millimeter wave indoor intelligent according to claim 1, it is characterised in that can use not
With the passive reflector of reflector shape（3）, obtain different beams direction（61）And polarised direction（62）Back wave（6）, enter
And by selecting and adjusting the reflecting surface of passive reflector（3）Shape, regulation reach shadow region（22）Beam angle, with improve
The characteristics such as the path loss of channel, angle of arrival, channel relevancy.
A kind of 6. passive covering method of millimeter wave indoor intelligent according to claim 1, it is characterised in that passive reflector
（3）Both can be the passive reflector being specifically manufactured（3）, wall partition of ground, ceiling, interior etc. can also be used natural
Existing object is as passive reflector（3）；The wall partition of interior can also be surface-treated, change its shape with shape
Into the passive reflector of required shape（3）, change its surfacing composition to improve reflectivity, change its surface flatness to carry
High reflectance；The passive reflector being specifically manufactured（3）Can be with separately installed wall or ceiling indoors.
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| CN201711125430.6A CN107708134B (en) | 2017-11-14 | 2017-11-14 | Millimeter wave indoor intelligent passive coverage method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880638A (en) * | 2018-07-27 | 2018-11-23 | 湖南时变通讯科技有限公司 | It is a kind of to expand in the cell networking structure of 5G network |
| CN110139287A (en) * | 2019-05-21 | 2019-08-16 | 西安电子科技大学 | A kind of millimeter wave indoor passive covering method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101427487A (en) * | 2006-05-23 | 2009-05-06 | 英特公司 | Millimeter-wave chip-lens array antenna systems for wireless networks |
| CN101427486A (en) * | 2006-05-23 | 2009-05-06 | 英特尔公司 | Millimeter-wave communication system with directional antenna and one or more millimeter-wave reflectors |
| CN105981225A (en) * | 2013-12-10 | 2016-09-28 | At&T知识产权部有限合伙公司 | Quasi-optical coupler |
| CN106332110A (en) * | 2016-08-23 | 2017-01-11 | 西安电子科技大学 | Method for predicting 5G millimeter wave network signal strength spatial distribution situation |
| CN110401492A (en) * | 2018-07-27 | 2019-11-01 | 中国计量科学研究院 | A kind of radio amplitude-modulated signal method of reseptance and amplitude modulation Quantum receiver based on quantum effect |
-
2017
- 2017-11-14 CN CN201711125430.6A patent/CN107708134B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101427487A (en) * | 2006-05-23 | 2009-05-06 | 英特公司 | Millimeter-wave chip-lens array antenna systems for wireless networks |
| CN101427420A (en) * | 2006-05-23 | 2009-05-06 | 英特尔公司 | Millimeter-wave chip-lens array antenna systems for wireless networks |
| CN101427486A (en) * | 2006-05-23 | 2009-05-06 | 英特尔公司 | Millimeter-wave communication system with directional antenna and one or more millimeter-wave reflectors |
| CN105981225A (en) * | 2013-12-10 | 2016-09-28 | At&T知识产权部有限合伙公司 | Quasi-optical coupler |
| CN106332110A (en) * | 2016-08-23 | 2017-01-11 | 西安电子科技大学 | Method for predicting 5G millimeter wave network signal strength spatial distribution situation |
| CN110401492A (en) * | 2018-07-27 | 2019-11-01 | 中国计量科学研究院 | A kind of radio amplitude-modulated signal method of reseptance and amplitude modulation Quantum receiver based on quantum effect |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880638A (en) * | 2018-07-27 | 2018-11-23 | 湖南时变通讯科技有限公司 | It is a kind of to expand in the cell networking structure of 5G network |
| WO2020020319A1 (en) * | 2018-07-27 | 2020-01-30 | 湖南时变通讯科技有限公司 | Cell networking structure developed in 5g network |
| CN110139287A (en) * | 2019-05-21 | 2019-08-16 | 西安电子科技大学 | A kind of millimeter wave indoor passive covering method |
| CN110139287B (en) * | 2019-05-21 | 2020-11-20 | 西安电子科技大学 | Millimeter wave indoor passive coverage method |
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