CN108174367A - A kind of location-based energy transmission method in time division duplex Internet of Things - Google Patents
A kind of location-based energy transmission method in time division duplex Internet of Things Download PDFInfo
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- CN108174367A CN108174367A CN201810018740.6A CN201810018740A CN108174367A CN 108174367 A CN108174367 A CN 108174367A CN 201810018740 A CN201810018740 A CN 201810018740A CN 108174367 A CN108174367 A CN 108174367A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 192
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 161
- 238000003306 harvesting Methods 0.000 claims abstract description 58
- 239000011159 matrix material Substances 0.000 claims description 37
- 230000005611 electricity Effects 0.000 claims description 34
- 230000004913 activation Effects 0.000 claims description 19
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000011664 signaling Effects 0.000 description 16
- 230000006872 improvement Effects 0.000 description 10
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- 238000010295 mobile communication Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
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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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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of location-based energy transmission method in time division duplex Internet of Things, including：S1, the first communication node being operated under TDD mode are detected self electric quantity Expenditure Levels；S2, second communication node send energy transmission direction and obtain signal configuration information to first communication node；S3, first communication node send the energy transmission direction and obtain signal；S4, the third communication node receive the energy transmission direction and obtain signal according to energy position transmission energy；S5, first communication node, which receive the energy and feed back energy harvesting efficiency information to second communication node or stop energy, sends information；S6, judge the second communication node to be energy harvesting efficiency information be also off energy send information.Energy consumption present method solves terminal is very high and the problem of energy can not be replenished in time, and effectively reduces the maintenance cost of user, improves the service efficiency of network.
Description
Technical field
The present invention relates to location-based in wireless communication technique improvement areas more particularly to a kind of time division duplex Internet of Things
Energy transmission method.
Background technology
5G will meet diversified business demand of the people in various regions such as inhabitation, work, leisure and traffic, even if close
Collect residential quarter, office, stadium, outdoor rally, subway, through street, high ferro and wide area covering etc. with ultra high flux density,
Superelevation connection number density, the scene of ultrahigh-mobility feature, or user provides ultra high-definition video, virtual reality, enhancing
The ultimate attainment business experiences such as reality, cloud desktop, game on line.At the same time, 5G will also penetrate into Internet of Things and various industries field,
It is merged with industrial plants, Medical Instruments, vehicles even depth, effectively meets the various of the vertical industries such as industry, medical treatment, traffic
Change business demand, realize really " all things on earth interconnection ".
5G application scenarios can be divided into two major class, i.e. mobile broadband (MBB, Mobile Broadband) and Internet of Things
(IoT, Internet of Things).Wherein, the major technique demand of mobile broadband access is high power capacity, provides high data
Rate, to meet constantly increasing for data traffic requirement.Internet of Things is mainly by machine communication（MTC, Machine Type
Communication）The driving of demand can be further divided into two types, the magnanimity machine communication including low rate（MMC,
Massive Machine Communication）The highly reliable machine communication with low time delay.Wherein, for the magnanimity of low rate
Machine communication, the access of magnanimity node low rate, the data packet of transmission is usually smaller, and interval time can be relatively long, this kind of node
Cost and power consumption generally also can be very low；For the highly reliable machine communication of low time delay, it is mainly directed towards real-time and reliability will
Ask the machine communication that comparison is high, such as real-time alert, real time monitoring etc..
In 5th Generation Mobile Communication System, the core scenario for needing most further investigation is exactly machine communication, such as industry
4.0th, the hot fields in car networking, robot etc. future are all the typical cases of this scenes of internet of things, if based on tradition
Mobile communication system to support machine communication, can bring makes the energy consumption of terminal very high and what energy can not be replenished in time asks
Topic.
Invention content
In order to solve that the energy consumption of terminal in existing machine communication in the prior art is very high and energy can not be replenished in time
Problem, the present invention provides a kind of location-based energy transmission methods in time division duplex Internet of Things.
1. the present invention provides a kind of location-based energy transmission method in time division duplex Internet of Things, the energy transmission side
Method includes the following steps：
S1, the first communication node being operated under TDD mode are detected self electric quantity Expenditure Levels, as electricity is low
Electric quantity consumption in first predetermined value or within a predetermined period of time is higher than second predetermined value, then first communication node sends energy
Measure management information；
After S2, the second communication node receive the energy management information, activation and the closest N of first communication node
The third communication node of root antenna, second communication node send energy transmission direction and obtain signal configuration information to described the
One communication node；
After S3, first communication node receive the energy transmission direction acquisition signal configuration information, send the energy and pass
Defeated direction obtains signal；
S4, the third communication node receive the energy transmission direction and obtain signal, obtain the channel vector of a N*1, right
The covariance matrix of the channel vector carries out singular value decomposition and obtains right singular matrix, and the third communication node is based on described
The preceding Z row of right singular matrix determine the energy position of the third communication node-node transmission, and the third communication node is according to described
Energy position transmits energy；
S5, first communication node receive the energy and to second communication node feed back energy harvesting efficiency information or
Stop energy and send information；
S6, judge the second communication node to be energy harvesting efficiency information be also off energy send information；Energy obtains in this way
Efficiency information is taken, then energy harvesting efficiency is less than third predetermined value, then second communication node notifies the third communication section
Point, which increases, sends energy, if energy harvesting efficiency is more than the 4th predetermined value, second communication node notifies the third
Communication node, which reduces, sends energy；It is such as off energy and sends information, then second communication node notifies the third communication
Node is closed, and is stopped energy and is sent；
Wherein, N is the integer more than or equal to 128, and Z is the integer for being less than or equal to N more than or equal to 1..
As a further improvement on the present invention, the first predetermined value is the first communication node electricity maximum value
10%, the predetermined amount of time is 30 days, and the second predetermined value is the 5% of the first communication node electricity maximum value, described
Third predetermined value is 1%/hour of the first communication node electricity maximum value, and the 4th predetermined value is the described first communication
3%/hour of node electricity maximum value.
As a further improvement on the present invention, the running time-frequency resource that first communication node sends energy management information is more
A first communication node is shared, and different first communication nodes have different code words；The energy management information includes at least described
Information about power, location information and the enabling time information of first communication node.
As a further improvement on the present invention, it is logical including described first to obtain signal configuration information for the energy transmission direction
Believe that node sends the running time-frequency resource that the energy transmission direction acquisition signal uses, the sequence generating mode used, the sequence used
One or more in row number X, the length of time-domain resource is more than or equal to 20ms, and X is the integer more than or equal to 2.
As a further improvement on the present invention, the Z values are equal in N number of singular value of the covariance matrix and are not less than
The singular value number of 0.9* maximum singular values.
As a further improvement on the present invention, it is big to start the working time for the solar recharging module of first communication node
In 1 hour then the first communication node send stop energy sending information or first communication node electricity reach 90% with
On then the first communication node send it is described stopping energy send information.
As a further improvement on the present invention, the sending cycle that first communication node and the second communication node are negotiated is believed
Periodicity sending energy harvesting efficiency information is ceased, the sending cycle is more than or equal to 6 hours.
As a further improvement on the present invention, second communication node receives energy harvesting efficiency information continuous Y times and obtains
To energy transmission efficiency be respectively less than third predetermined value, then second communication node sends the first communication node operation irregularity
Exception control data center is indicated to, Y is the integer more than or equal to 3.
As a further improvement on the present invention, second communication node receives the energy harvesting efficiency letter continuous Y times
It ceases obtained energy transmission efficiency and is respectively less than third predetermined value, then second communication node notifies the third communication node to stop
Only energy transmission and the first communication node stop energy acceptance, and second communication node enters transmitting abnormal signal state, Y
To be more than or equal to 3 integer.
As a further improvement on the present invention, the first communication node operation irregularity information includes first communication section
The identification information of point, type information, location information and enabling time information it is one or more.
The beneficial effects of the invention are as follows：Energy consumption present method solves terminal is very high and what energy can not be replenished in time asks
Topic effectively reduces the maintenance cost of user, improves the service efficiency of network, reaches the demand of " green communications ".
Description of the drawings
Fig. 1 is the flow chart of location-based energy transmission method in time division duplex Internet of Things of the present invention.
Fig. 2 is the position relationship schematic diagram of energy transmission node of the present invention and terminal.
Fig. 3 is that energy transmission direction of the present invention obtains signal structure schematic diagram.
Specific embodiment
As shown in Figure 1, the invention discloses a kind of location-based energy transmission method in time division duplex Internet of Things, in detail
It states as follows：
Step S1, the first communication node being operated under TDD mode are detected self electric quantity Expenditure Levels, such as electricity
Electric quantity consumption of the amount less than first predetermined value or within a predetermined period of time is sent out higher than second predetermined value, then first communication node
Send energy management information；The running time-frequency resource that first communication node sends energy management information is that multiple first communication nodes are total to
It enjoys, different first communication nodes have different code words；The energy management information includes at least the electricity of first communication node
Measure information, location information and enabling time information.The first predetermined value is the first communication node electricity maximum value
10%, the predetermined amount of time is 30 days, and the second predetermined value is the 5% of the first communication node electricity maximum value.It is described
The running time-frequency resource that first communication node sends energy management information is that multiple first communication nodes are shared, different first communication nodes
There is different code words；The energy management information is including at least the information about power of first communication node, location information and opens
Use temporal information.
Step S2, after the second communication node receives the energy management information, activation with first communication node away from
Third communication node from nearest N root antennas, second communication node send energy transmission direction and obtain signal with confidence
It ceases to first communication node；Wherein, N is the integer more than or equal to 128.The energy transmission direction obtains signal and matches confidence
Breath includes first communication node and sends the running time-frequency resource that the energy transmission direction acquisition signal uses, the sequence life used
Into one or more in mode, the sequence number X used, the length of time-domain resource is more than or equal to 20ms, and X is more than or equal to 2
Integer.
Step S3 after first communication node receives the energy transmission direction acquisition signal configuration information, sends institute
It states energy transmission direction and obtains signal.
Step S4, the third communication node receive the energy transmission direction and obtain signal, obtain the channel of a N*1
Vector carries out singular value decomposition to the covariance matrix of the channel vector and obtains right singular matrix, the third communication node
The energy position of the third communication node-node transmission, the third communication node are determined based on the preceding Z row of the right singular matrix
Energy is transmitted according to the energy position；The Z values are equal to maximum not less than 0.9* in N number of singular value of the covariance matrix
The singular value number of singular value.
Step S5, first communication node receive the energy and are imitated to second communication node feedback energy harvesting
Rate information stops energy transmission information.
Step S6, judge the second communication node to be energy harvesting efficiency information be also off energy send information；Such as
It is energy harvesting efficiency information, then energy harvesting efficiency is less than third predetermined value, then second communication node notifies described the
Three communication nodes, which increase, sends energy, if energy harvesting efficiency is more than the 4th predetermined value, the second communication node notice
The third communication node, which reduces, sends energy；It is such as off energy and sends information, then described in the second communication node notice
Third communication node is closed, and is stopped energy and is sent；It is big that the solar recharging module of first communication node starts the working time
In 1 hour then the first communication node send stop energy sending information or first communication node electricity reach 90% with
On then the first communication node send it is described stopping energy send information.
Sending cycle property information cycle that first communication node and the second communication node are negotiated sends energy harvesting effect
Rate information, the sending cycle are more than or equal to 6 hours.
Second communication node receives the energy transmission efficiency that energy harvesting efficiency information obtains continuous Y times and is respectively less than
Three predetermined values, then what second communication node sent the first communication node operation irregularity is indicated to exception control data center,
Y is the integer more than or equal to 3.The mark that the first communication node operation irregularity information includes first communication node is believed
Breath, type information, location information and enabling time information it is one or more.
It is small that second communication node receives the energy transmission efficiency that the energy harvesting efficiency information obtains continuous Y times
In third predetermined value, then second communication node notifies the third communication node to stop energy transmission and the first communication node
Stop energy acceptance, second communication node enters transmitting abnormal signal state, and Y is the integer more than or equal to 3.
Embodiment 1
The terminal-pair self electric quantity Expenditure Levels being operated under TDD mode are detected, if electricity is predetermined less than first
It is worth or electric quantity consumption within a predetermined period of time is higher than second predetermined value, then terminal sends energy management information.Preferably, energy
Management information is including at least the electricity of terminal, the location information of terminal.
After base station receives energy management information, activation and the closest energy transmission section for including N root antennas of terminal
Point（As shown in Fig. 2, base station activation and the nearest energy transmission node 2 of terminal location）, base station sends energy transmission direction and obtains
Signal configuration information to terminal, wherein, N is integer more than or equal to 128.
After terminal receives energy transmission direction acquisition signal configuration information, send energy transmission direction and obtain signal.
Energy transmission node receives energy transmission direction and obtains signal, the channel vector of a N*1 is obtained, to channel vector
Covariance matrix carry out singular value decomposition and obtain right singular matrix, preceding Z row of the energy transmission node based on right singular matrix are true
Surely amount transmission node transmission energy position, energy transmission node according to energy position transmit energy, wherein, Z be more than etc.
In the integer that 1 is less than or equal to N.
Terminal receives energy, and to base station feedback energy harvesting efficiency information or stops energy transmission information.
If base station receives energy harvesting efficiency information, if energy harvesting efficiency is less than third predetermined value, base station
Increase the energy sent by signaling energy transmission node, if energy harvesting efficiency is more than the 4th predetermined value, base station
The energy sent is reduced by signaling energy transmission node.
If base station, which receives, stops energy transmission information, base station notice energy transmission node is closed, and stops energy hair
It send.
Embodiment 2
The terminal-pair self electric quantity Expenditure Levels being operated under TDD mode are detected, if electricity is predetermined less than first
It is worth or electric quantity consumption within a predetermined period of time is higher than second predetermined value, then terminal sends energy management information.Preferably, energy
Management information is including at least the electricity of terminal, the location information of terminal.Preferably, first predetermined value is terminal power maximum value
10%, predetermined amount of time is 30 days, and second predetermined value is the 5% of terminal power maximum value.
After base station receives energy management information, activation and the closest energy transmission section for including N root antennas of terminal
Point（As shown in Fig. 2, base station activation and the nearest energy transmission node 2 of terminal location）, base station sends energy transmission direction and obtains
Signal configuration information to terminal, wherein, N is integer more than or equal to 128.
After terminal receives energy transmission direction acquisition signal configuration information, send energy transmission direction and obtain signal.
Energy transmission node receives energy transmission direction and obtains signal, the channel vector of a N*1 is obtained, to channel vector
Covariance matrix carry out singular value decomposition and obtain right singular matrix, preceding Z row of the energy transmission node based on right singular matrix are true
Surely amount transmission node transmission energy position, energy transmission node according to energy position transmit energy, wherein, Z be more than etc.
In the integer that 1 is less than or equal to N.
Terminal receives energy, and to base station feedback energy harvesting efficiency information or stops energy transmission information.
If base station receives energy harvesting efficiency information, if energy harvesting efficiency is less than third predetermined value, base station
Increase the energy sent by signaling energy transmission node, if energy harvesting efficiency is more than the 4th predetermined value, base station
The energy sent is reduced by signaling energy transmission node.Preferably, third predetermined value for terminal power maximum value 1%/
Hour, the 4th predetermined value is 3%/hour of terminal power maximum value.
If base station, which receives, stops energy transmission information, base station notice energy transmission node is closed, and stops energy hair
It send.
Embodiment 3
The terminal-pair self electric quantity Expenditure Levels being operated under TDD mode are detected, if electricity is predetermined less than first
It is worth or electric quantity consumption within a predetermined period of time is higher than second predetermined value, then terminal sends energy management information.Preferably, energy
Management information is including at least the electricity of terminal, the location information of terminal.Preferably, terminal sends the time-frequency money of energy management information
Source is that multiple terminals are shared, and different terminals have different code words, and user can be distinguished well while saving control resource.
After base station receives energy management information, activation and the closest energy transmission section for including N root antennas of terminal
Point（As shown in Fig. 2, base station activation and the nearest energy transmission node 2 of terminal location）, base station sends energy transmission direction and obtains
Signal configuration information to terminal, wherein, N is integer more than or equal to 128.
After terminal receives energy transmission direction acquisition signal configuration information, send energy transmission direction and obtain signal.
Energy transmission node receives energy transmission direction and obtains signal, the channel vector of a N*1 is obtained, to channel vector
Covariance matrix carry out singular value decomposition and obtain right singular matrix, preceding Z row of the energy transmission node based on right singular matrix are true
Surely amount transmission node transmission energy position, energy transmission node according to energy position transmit energy, wherein, Z be more than etc.
In the integer that 1 is less than or equal to N.
Terminal receives energy, and to base station feedback energy harvesting efficiency information or stops energy transmission information.
If base station receives energy harvesting efficiency information, if energy harvesting efficiency is less than third predetermined value, base station
Increase the energy sent by signaling energy transmission node, if energy harvesting efficiency is more than the 4th predetermined value, base station
The energy sent is reduced by signaling energy transmission node.
If base station, which receives, stops energy transmission information, base station notice energy transmission node is closed, and stops energy hair
It send.
Embodiment 4
The terminal-pair self electric quantity Expenditure Levels being operated under TDD mode are detected, if electricity is predetermined less than first
It is worth or electric quantity consumption within a predetermined period of time is higher than second predetermined value, then terminal sends energy management information.Preferably, energy
Management information is including at least the electricity of terminal, the location information of terminal.
After base station receives energy management information, activation and the closest energy transmission section for including N root antennas of terminal
Point（As shown in Fig. 2, base station activation and the nearest energy transmission node 2 of terminal location）, base station sends energy transmission direction and obtains
Signal configuration information to terminal, wherein, N is integer more than or equal to 128.
After terminal receives energy transmission direction acquisition signal configuration information, send energy transmission direction and obtain signal.Such as Fig. 3
Shown, terminal uses different sequences to be used as energy transmission direction and obtains signal by time division way, the advantage of doing so is that having
Effect solves the problems, such as inter-user interference.
Energy transmission node receives energy transmission direction and obtains signal, the channel vector of a N*1 is obtained, to channel vector
Covariance matrix carry out singular value decomposition and obtain right singular matrix, preceding Z row of the energy transmission node based on right singular matrix are true
Surely amount transmission node transmission energy position, energy transmission node according to energy position transmit energy, wherein, Z be more than etc.
In the integer that 1 is less than or equal to N.
Terminal receives energy, and to base station feedback energy harvesting efficiency information or stops energy transmission information.
If base station receives energy harvesting efficiency information, if energy harvesting efficiency is less than third predetermined value, base station
Increase the energy sent by signaling energy transmission node, if energy harvesting efficiency is more than the 4th predetermined value, base station
The energy sent is reduced by signaling energy transmission node.
If base station, which receives, stops energy transmission information, base station notice energy transmission node is closed, and stops energy hair
It send.
Embodiment 5
The terminal-pair self electric quantity Expenditure Levels being operated under TDD mode are detected, if electricity is predetermined less than first
It is worth or electric quantity consumption within a predetermined period of time is higher than second predetermined value, then terminal sends energy management information.Preferably, energy
Management information is including at least the electricity of terminal, the location information of terminal.
After base station receives energy management information, activation and the closest energy transmission section for including N root antennas of terminal
Point（As shown in Fig. 2, base station activation and the nearest energy transmission node 2 of terminal location）, base station sends energy transmission direction and obtains
Signal configuration information to terminal, wherein, N is integer more than or equal to 128.
After terminal receives energy transmission direction acquisition signal configuration information, send energy transmission direction and obtain signal.
Energy transmission node receives energy transmission direction and obtains signal, the channel vector of a N*1 is obtained, to channel vector
Covariance matrix carry out singular value decomposition and obtain right singular matrix, preceding Z row of the energy transmission node based on right singular matrix are true
Surely amount transmission node transmission energy position, energy transmission node according to energy position transmit energy, wherein, Z be more than etc.
In the integer that 1 is less than or equal to N.Preferably, Z values are equal in N number of singular value of covariance matrix, are not less than（0.9* maximums are unusual
Value）Singular value number.For example, one shares 5 singular values（10,9.5,9.3,6,2）, then qualified singular value be（10,
9.5,9.3）, the value of Z is 3.
Terminal receives energy, and to base station feedback energy harvesting efficiency information or stops energy transmission information.
If base station receives energy harvesting efficiency information, if energy harvesting efficiency is less than third predetermined value, base station
Increase the energy sent by signaling energy transmission node, if energy harvesting efficiency is more than the 4th predetermined value, base station
The energy sent is reduced by signaling energy transmission node.
If base station, which receives, stops energy transmission information, base station notice energy transmission node is closed, and stops energy hair
It send.
Embodiment 6
The terminal-pair self electric quantity Expenditure Levels being operated under TDD mode are detected, if electricity is predetermined less than first
It is worth or electric quantity consumption within a predetermined period of time is higher than second predetermined value, then terminal sends energy management information.Preferably, energy
Management information is including at least the electricity of terminal, the location information of terminal.
After base station receives energy management information, activation and the closest energy transmission section for including N root antennas of terminal
Point（As shown in Fig. 2, base station activation and the nearest energy transmission node 2 of terminal location）, base station sends energy transmission direction and obtains
Signal configuration information to terminal, wherein, N is integer more than or equal to 128.
After terminal receives energy transmission direction acquisition signal configuration information, send energy transmission direction and obtain signal.
Energy transmission node receives energy transmission direction and obtains signal, the channel vector of a N*1 is obtained, to channel vector
Covariance matrix carry out singular value decomposition and obtain right singular matrix, preceding Z row of the energy transmission node based on right singular matrix are true
Surely amount transmission node transmission energy position, energy transmission node according to energy position transmit energy, wherein, Z be more than etc.
In the integer that 1 is less than or equal to N.
Terminal receives energy, and to base station feedback energy harvesting efficiency information or stops energy transmission information.Preferably, such as
The solar recharging module of fruit terminal started the working time more than 1 hour, then terminal, which is sent, stops energy transmission information, Huo Zheru
The electricity of fruit terminal reaches more than 90%, then terminal, which is sent, stops energy transmission information.
If base station receives energy harvesting efficiency information, if energy harvesting efficiency is less than third predetermined value, base station
Increase the energy sent by signaling energy transmission node, if energy harvesting efficiency is more than the 4th predetermined value, base station
The energy sent is reduced by signaling energy transmission node.
If base station, which receives, stops energy transmission information, base station notice energy transmission node is closed, and stops energy hair
It send.
Embodiment 7
The terminal-pair self electric quantity Expenditure Levels being operated under TDD mode are detected, if electricity is predetermined less than first
It is worth or electric quantity consumption within a predetermined period of time is higher than second predetermined value, then terminal sends energy management information.Preferably, energy
Management information is including at least the electricity of terminal, the location information of terminal.
After base station receives energy management information, activation and the closest energy transmission section for including N root antennas of terminal
Point（As shown in Fig. 2, base station activation and the nearest energy transmission node 2 of terminal location）, base station sends energy transmission direction and obtains
Signal configuration information to terminal, wherein, N is integer more than or equal to 128.
After terminal receives energy transmission direction acquisition signal configuration information, send energy transmission direction and obtain signal.
Energy transmission node receives energy transmission direction and obtains signal, the channel vector of a N*1 is obtained, to channel vector
Covariance matrix carry out singular value decomposition and obtain right singular matrix, preceding Z row of the energy transmission node based on right singular matrix are true
Surely amount transmission node transmission energy position, energy transmission node according to energy position transmit energy, wherein, Z be more than etc.
In the integer that 1 is less than or equal to N.
Terminal receives energy, and to base station feedback energy harvesting efficiency information or stops energy transmission information.
If base station receives energy harvesting efficiency information, if energy harvesting efficiency is less than third predetermined value, base station
Increase the energy sent by signaling energy transmission node, if energy harvesting efficiency is more than the 4th predetermined value, base station
The energy sent is reduced by signaling energy transmission node.Preferably, if continuous Y times of the base station energy harvesting effect received
Rate information obtains energy transmission efficiency and is both less than third predetermined value, then base station sends the information of instruction terminal operation irregularity to exception
Data center is controlled, wherein Y is the integer more than or equal to 3.Preferably, in the information of instruction terminal operation irregularity include at least with
It is one of lower：The identification information of terminal, the type information of terminal, the location information of terminal, the enabling time information of terminal are abnormal to control
Data center processed generates abnormality processing scheme according to these information and is sent to maintenance personnel.
If base station, which receives, stops energy transmission information, base station notice energy transmission node is closed, and stops energy hair
It send.
Embodiment 8
The terminal-pair self electric quantity Expenditure Levels being operated under TDD mode are detected, if electricity is predetermined less than first
It is worth or electric quantity consumption within a predetermined period of time is higher than second predetermined value, then terminal sends energy management information.Preferably, energy
Management information is including at least the electricity of terminal, the location information of terminal.
After base station receives energy management information, activation and the closest energy transmission section for including N root antennas of terminal
Point（As shown in Fig. 2, base station activation and the nearest energy transmission node 2 of terminal location）, base station sends energy transmission direction and obtains
Signal configuration information to terminal, wherein, N is integer more than or equal to 128.
After terminal receives energy transmission direction acquisition signal configuration information, send energy transmission direction and obtain signal.
Energy transmission node receives energy transmission direction and obtains signal, the channel vector of a N*1 is obtained, to channel vector
Covariance matrix carry out singular value decomposition and obtain right singular matrix, preceding Z row of the energy transmission node based on right singular matrix are true
Surely amount transmission node transmission energy position, energy transmission node according to energy position transmit energy, wherein, Z be more than etc.
In the integer that 1 is less than or equal to N.
Terminal receives energy, and to base station feedback energy harvesting efficiency information or stops energy transmission information.
If base station receives energy harvesting efficiency information, if energy harvesting efficiency is less than third predetermined value, base station
Increase the energy sent by signaling energy transmission node, if energy harvesting efficiency is more than the 4th predetermined value, base station
The energy sent is reduced by signaling energy transmission node.Preferably, it is at least wrapped in the information of instruction terminal operation irregularity
Include one below：The identification information of terminal, the type information of terminal, the location information of terminal, the enabling time information of terminal are different
Often control data center generates abnormality processing scheme according to these information and is sent to maintenance personnel.Preferably, if base station connects
The continuous Y energy harvesting efficiency information received obtains energy transmission efficiency and is both less than third predetermined value, then notice energy in base station passes
Defeated node stops energy transmission, and notice terminal stops energy acceptance, handles state into abnormal signal, wherein Y is more than or equal to 3
Integer, in this state, terminal can periodically scan for the distinctive signal of equipment transmitting that maintenance personnel holds, and receive this
After distinctive signal, terminal can send out alarm sound, while light red eye so as to the position for allowing maintenance personnel that oneself is accurately positioned
It puts.
It is to be appreciated that in above-described embodiment, base station carries out uplink and downlink communication, energy transmission unit with terminal by frequency f
By frequency f to terminal transmission energy.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, several simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. a kind of location-based energy transmission method in time division duplex Internet of Things, it is characterised in that：The energy transmission method packet
Include following steps：
S1, the first communication node being operated under TDD mode are detected self electric quantity Expenditure Levels, as electricity is low
Electric quantity consumption in first predetermined value or within a predetermined period of time is higher than second predetermined value, then first communication node sends energy
Measure management information；
After S2, the second communication node receive the energy management information, activation and the closest N of first communication node
The third communication node of root antenna, second communication node send energy transmission direction and obtain signal configuration information to described the
One communication node；
After S3, first communication node receive the energy transmission direction acquisition signal configuration information, send the energy and pass
Defeated direction obtains signal；
S4, the third communication node receive the energy transmission direction and obtain signal, obtain the channel vector of a N*1, right
The covariance matrix of the channel vector carries out singular value decomposition and obtains right singular matrix, and the third communication node is based on described
The preceding Z row of right singular matrix determine the energy position of the third communication node-node transmission, and the third communication node is according to described
Energy position transmits energy；
S5, first communication node receive the energy and to second communication node feed back energy harvesting efficiency information or
Stop energy and send information；
S6, judge the second communication node to be energy harvesting efficiency information be also off energy send information；Energy obtains in this way
Efficiency information is taken, then energy harvesting efficiency is less than third predetermined value, then second communication node notifies the third communication section
Point, which increases, sends energy, if energy harvesting efficiency is more than the 4th predetermined value, second communication node notifies the third
Communication node, which reduces, sends energy；It is such as off energy and sends information, then second communication node notifies the third communication
Node is closed, and is stopped energy and is sent；
Wherein, N is the integer more than or equal to 128, and Z is the integer for being less than or equal to N more than or equal to 1.
2. location-based energy transmission method in time division duplex Internet of Things according to claim 1, it is characterised in that：Institute
10% that first predetermined value is the first communication node electricity maximum value is stated, the predetermined amount of time is 30 days, and described second is pre-
Definite value is the 5% of the first communication node electricity maximum value, and the third predetermined value is maximum for the first communication node electricity
1%/hour of value, the 4th predetermined value are 3%/hour of the first communication node electricity maximum value.
3. location-based energy transmission method, feature exist in time division duplex Internet of Things according to claim 1 or 2
In：The running time-frequency resource that first communication node sends energy management information is that multiple first communication nodes are shared, difference first
Communication node has different code words；The energy management information includes at least the information about power of first communication node, position
Information and enabling time information.
It is 4. special according to location-based energy transmission method in claim 1-3 any one of them time division duplex Internet of Things
Sign is：The energy transmission direction obtains signal configuration information and includes first communication node transmission energy transmission side
It is one or more into the running time-frequency resource that acquisition signal uses, the sequence generating mode used, the sequence number X used, when
The length of domain resource is more than or equal to 20ms, and X is the integer more than or equal to 2.
It is 5. special according to location-based energy transmission method in claim 1-4 any one of them time division duplex Internet of Things
Sign is：The Z values are equal in N number of singular value of the covariance matrix not less than the singular value of 0.9* maximum singular values
Number.
It is 6. special according to location-based energy transmission method in claim 1-5 any one of them time division duplex Internet of Things
Sign is：The solar recharging module of first communication node starts the working time, and more than 1 hour, then the first communication node was sent out
Send stop energy sending information or first communication node electricity reach more than 90% then the first communication node send institute
It states and stops energy transmission information.
It is 7. special according to location-based energy transmission method in claim 1-6 any one of them time division duplex Internet of Things
Sign is：Sending cycle property information cycle that first communication node and the second communication node are negotiated sends energy harvesting efficiency
Information, the sending cycle are more than or equal to 6 hours.
It is 8. special according to location-based energy transmission method in claim 1-7 any one of them time division duplex Internet of Things
Sign is：Second communication node receives the energy transmission efficiency that energy harvesting efficiency information obtains continuous Y times and is respectively less than
Three predetermined values, then what second communication node sent the first communication node operation irregularity is indicated to exception control data center,
Y is the integer more than or equal to 3.
It is 9. special according to location-based energy transmission method in claim 1-7 any one of them time division duplex Internet of Things
Sign is：It is small that second communication node receives the energy transmission efficiency that the energy harvesting efficiency information obtains continuous Y times
In third predetermined value, then second communication node notifies the third communication node to stop energy transmission and the first communication node
Stop energy acceptance, second communication node enters transmitting abnormal signal state, and Y is the integer more than or equal to 3.
10. location-based energy transmission method in time division duplex Internet of Things according to claim 8, it is characterised in that：
The first communication node operation irregularity information includes identification information, type information, the location information of first communication node
And enabling time information is one or more.
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Correction item: Inventor Correct: Wang Yang|Zou Bo|Cen Hongjie False: Wang Yang|Zou Bo|Cen Hongjie|Chen Zhilie|Chen Chao|Lin Shimei|Pang Guanshi Number: 45-01 Volume: 34 |
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