CN106921975A - A kind of relay transmission method and device based on 230M radio communication private networks - Google Patents
A kind of relay transmission method and device based on 230M radio communication private networks Download PDFInfo
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- CN106921975A CN106921975A CN201511001341.1A CN201511001341A CN106921975A CN 106921975 A CN106921975 A CN 106921975A CN 201511001341 A CN201511001341 A CN 201511001341A CN 106921975 A CN106921975 A CN 106921975A
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- 238000004891 communication Methods 0.000 title claims abstract description 44
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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
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
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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 invention discloses a kind of relay transmission method and device based on 230M radio communication private networks, wherein, the method includes：Step A：Source node receives electric network data to be transmitted, judges whether the electric network data to be transmitted is high-priority data；Step B：When the electric network data to be transmitted is high-priority data, the high-priority data is transferred to by destination node by the link that direct transfers of power private network frequency range；Step C：When the electric network data to be transmitted is non-high priority data, repeated link is determined according to default method, by the repeated link by the non-high priority data transfer to destination node.The present invention takes full advantage of the frequency spectrum resource of 230MHz special industry specialty channels on the premise of ensureing not disturbing primary user's proper communication, it is to avoid substantial amounts of frequency spectrum resource is wasted.And retransmitted using random back, the probability of feedback information conflict is substantially reduced, end-to-end time delay is reduced, improve system reliability.
Description
Technical field
The present invention relates to radio transmission technical field, in particular it relates to a kind of special based on 230M radio communications
The relay transmission method and device of net.
Background technology
Radio communication private network technology is a kind of important power system access network technology, is to ensure that power network is efficient
One key technology of reliability service.With intelligent grid and the high speed development of new business, in power system
The contradiction between rapid growth and limited bandwidth resources to radio communication service demand, such as
What effectively improves power system capacity, there is provided high-quality information transfer, and solution electric power of new generation is wireless
One of the problems such as communication private network ubiquitousization is covered, the bottleneck all as restriction intelligent grid development.Cognitive nothing
Line is electric to be appeared as solving frequency spectrum resource deficiency, realizes that frequency spectrum dynamically start by management and the raising availability of frequency spectrum
Brand-new situation, wherein, frequency spectrum share is key technology that it effectively solves frequency spectrum scarcity problem.
In existing technical scheme, power communication access network typically using rent public network resources or electric power without
Line communicates private network technology with realizing.Wherein electric power radio communication private network is mainly orthogonal by using some to include
Frequency division multiplexing (OFDM) technology, multi-antenna technology, technology for self-adaptively transmitting, carrier aggregation etc. are advanced
It is wirelessly transferred with signal processing technology to improve spectrum efficiency and improve transmission performance.But it is fixed according to Shannon
Reason understands that under certain system bandwidth, the system transmission rate to be reached has the upper limit, is obtaining
While certain transmission performance gain, system complexity can be also set to increase significantly.
Above-mentioned these technologies can not all solve rare this root problem of frequency spectrum resource, meanwhile, research finds,
In 230MHz frequency ranges, the utilization rate for distributing to the frequency spectrum of the industries such as waterpower, geology is relatively low, i.e., certain
In time range, many idle channels are often there are in 230MHz frequency ranges.Existing electric power 230MHz is wireless
Private network scheme is often limited to the frequency range of fixed allocation, and can not make full use of this partial frequency spectrum gain.Cause
This, improve original technology and introduce advanced technology while, in addition it is also necessary to using flexibly and effectively method come
Improve the rare problem of the frequency resource of electric power 230MHz frequency ranges, communication system is improved in terms of different
Performance.
By research and the consideration of actual application environment to above prior art, it is easy to find existing skill
Art has the following disadvantages：(1), the frequency spectrum service efficiency of existing electric power radio communication private network is relatively low；(2)、
State Radio Regulatory Commission can not be made full use of to be committed to the special of the industries such as electric power, waterpower, geology
Frequency spectrum resource, the waste that there is frequency spectrum resource；(3), because available frequency resources are less, prevailing system
Transmission rate is relatively low, and network throughput is smaller, it is impossible to preferably meet the demand of high-rate service.
The content of the invention
In order to solve the low technology of electric power radio communication private network frequency spectrum service efficiency present in prior art
Problem, the present invention proposes a kind of relay transmission method and device based on 230M radio communication private networks.
A kind of relay transmission method based on 230M radio communication private networks of the invention, including：
Step A：Source node receives electric network data to be transmitted, judge the electric network data to be transmitted whether be
High-priority data；
Step B：When the electric network data to be transmitted is high-priority data, by power private network frequency range
The link that direct transfers the high-priority data is transferred to destination node；
Step C：When the electric network data to be transmitted is non-high priority data, according to default method
Repeated link is determined, by the repeated link by the non-high priority data transfer to mesh
Node.
Preferably, it is described to determine that repeated link includes according to default method：
Step C1：The source node is initiated frequency spectrum perception and sends perception solicited message to each neighbor node,
Each neighbor node is indicated to initiate frequency spectrum perception；
Step C2：Each neighbor node will perceive the current radio channel service condition and itself letter for obtaining
Breath feeds back to the source node；
Step C3：The source node according to the current radio channel service condition of each neighbor node and from
Body information, a via node is selected using default selection algorithm；
Step C4：Judge that can the source node be jumped to up to destination node by the via node one, such as
Fruit can, then using source node by the path of via node arrival destination node as repeated link.
Preferably, the step C4 also includes：
If source node can not jump achieve the goal node, the via node by the via node one
Repeating said steps C1- step C3, until selecting N number of via node that source node reaches destination node；
Source node is reached into the path of destination node as relay transmission chain by the N number of via node
Road.
Preferably, in the step C2, each neighbor node uses the re-transmission machine of random back Preset Time
The system feedback current radio channel service condition and self information.
Preferably, the method also includes：
When the source node exceeds preset value with the distance of the destination node, by repeated link
The electric network data to be transmitted is transferred to destination node, the electric network data to be transmitted is high priority number
According to or non-high priority data.
The relay transmission method based on 230M radio communication private networks of the embodiment of the present invention, for difference
The data service of delay requirement, is carried out data transmission by different frequency ranges respectively, is substantially increased
The frequency spectrum service efficiency of 230MHz electric power radio communication private networks, promotes the realization of two-forty demand business.
On the premise of ensureing not disturbing primary user's proper communication, 230MHz special industries are taken full advantage of special
The frequency spectrum resource of industry channel, it is to avoid substantial amounts of frequency spectrum resource is wasted.And retransmitted using random back,
The probability of feedback information conflict is greatly reduced, time delay end to end is reduced, improve system can
By property.
A kind of relay transmission device based on 230M radio communication private networks of the invention, including：
Service classification module, electric network data to be transmitted is received for source node, judges the power transmission network to be passed
Whether data are high-priority data；
First transport module, for when the electric network data to be transmitted is high-priority data, by electricity
The high-priority data is transferred to destination node by the link that direct transfers of power private network frequency range；
Second transport module, for when the electric network data to be transmitted be non-high priority data when, according to
Default method determines repeated link, by the repeated link by the non-high priority number
According to being transferred to destination node.
Preferably, second transport module is specifically included：
Frequency spectrum perception submodule, initiates frequency spectrum perception and sends sense to each neighbor node for the source node
Know solicited message, indicate each neighbor node to initiate frequency spectrum perception；
Feedback of the information submodule, uses for each neighbor node by the current radio channel for obtaining is perceived
Situation and self information feed back to the source node；
Node selects submodule, for the source node according to the current radio channel of each neighbor node
Service condition and self information, a via node is selected using default selection algorithm；
Link determination sub-module, reaches for judging that can the source node be jumped to by the via node one
Destination node, if it can, then using source node by the via node reach destination node path as
Repeated link.
Preferably, the link determination sub-module is additionally operable to,
If source node can not jump achieve the goal node, the via node by the via node one
The operation that the frequency spectrum perception submodule, feedback of the information submodule and node select submodule is repeated, until
Select N number of via node that source node reaches destination node；
Source node is reached into the path of destination node as relay transmission chain by the N number of via node
Road.
Preferably, feedback of the information submodule is additionally operable to, and each neighbor node is using random back Preset Time
Retransmission mechanism feeds back the current radio channel service condition and self information.
Preferably, the device also includes：
3rd transport module, for when the distance of the source node and the destination node exceeds preset value,
The electric network data to be transmitted is transferred to by destination node, the power transmission network to be passed by repeated link
Data are high-priority data or non-high priority data.
The relay transmission device based on 230M radio communication private networks of the embodiment of the present invention, for it is different when
Prolong the data service of requirement, carried out data transmission by different frequency ranges respectively, substantially increase 230MHz
The frequency spectrum service efficiency of electric power radio communication private network, promotes the realization of two-forty demand business.Ensureing
On the premise of not disturbing primary user's proper communication, 230MHz special industry specialty channels are taken full advantage of
Frequency spectrum resource, it is to avoid substantial amounts of frequency spectrum resource is wasted.And retransmitted using random back, significantly
The probability of feedback information conflict is reduced, time delay end to end is reduced, the reliability of system is improved.
Other features and advantages of the present invention will illustrate in the following description, also, partly from
Become apparent in specification, or understood by implementing the present invention.The purpose of the present invention and its
His advantage can be by specifically noted knot in the specification, claims and accompanying drawing write
Structure is realized and obtained.
Below by drawings and Examples, technical scheme is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with
Embodiments of the invention are used to explain the present invention together, are not construed as limiting the invention.In accompanying drawing
In：
Fig. 1 is the net of the relay transmission method based on 230M radio communication private networks of the embodiment of the present invention
Network configuration diagram；
Fig. 2 is the method flow schematic diagram of the embodiment of the present invention one；
Fig. 3 is the method flow schematic diagram of the embodiment of the present invention two；
Fig. 4 is the method flow schematic diagram of the embodiment of the present invention three；
Fig. 5 is the apparatus structure schematic diagram of the embodiment of the present invention four.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in detail, it is to be understood that this
The protection domain of invention is not limited by specific embodiment.
In order to solve the low technology of electric power radio communication private network frequency spectrum service efficiency present in prior art
Problem, the present invention proposes a kind of relay transmission method and device based on 230M radio communication private networks.
The present invention proposes a kind of more idle frequency range in part in frequency range using 230M come auxiliary power system
The Cognitive-Cooperation relay transmission mechanism of information transfer of uniting, specifically, the present invention passes through frequency spectrum perception skill
Art so that node can perceive the service condition of surrounding spectrum, finds idle frequency range and is subject to profit in time
With, expand the usable frequency range of power grid user, improve throughput of system and power system capacity (
The number of users for communicating simultaneously), while by using relay transmission technology, expanding covering for system
Scope, reduces node transmitting power, that is, reduce the interference to primary user, and improve system can
By property.The business (high-priority data business) higher for requirement of real-time, using original electricity
The special frequency range of power is communicated, and business (the non-high priority data industry relatively low for requirement of real-time
Business, such as data collection service), then using relay transmission method proposed by the invention, below adopt
Technical solution of the present invention is described in detail with one-example IV of embodiment.
Embodiment one
As shown in figure 1, being the relay transmission based on 230M radio communication private networks of the embodiment of the present invention
The network architecture schematic diagram of method；As shown in Fig. 2 being the embodiment of the present invention based on 230M channel radios
Believe the relay transmission method schematic flow sheet of private network.
Primary user refers to the user using industry frequency ranges such as waterpower, geology in Fig. 1.Cognitive source node refers to certain
The individual grid nodes for needing transmission information, destination node is the grid nodes for receiving this information.In one
It is made up of one or more via nodes (relaying cluster) after transmission link, a relaying cluster is by multiple electricity
Net equipment is constituted, and representative can once provide the set of the grid equipment of relay services.Relaying in Fig. 1
Number of clusters amount N is not fixed, but determined by the distance of source node to destination node.Direct transfer chain
Road only exists when source node directly can communicate with destination node, and now relay transmission can be considered multipath
Transmission, improves the diversity gain of system.
As shown in Fig. 2 the method for the embodiment of the present invention is comprised the following steps：
Step S201：Whether source node receives electric network data to be transmitted, judges the electric network data to be transmitted
It is high-priority data；
High-priority data can be set according to actual electric network data transmission demand, and the present invention is used
Service classification mechanism, the high-priority data business higher for delay requirement and delay requirement be not relatively
Non-high priority data service high is transmitted by different frequency ranges respectively, such as to high-priority data
Business, is transmitted using electric power radio communication private network communication mode, is effectively improved the adaptation of system
Ability and scalability；And to non-high priority data service, using middle rank transmission side proposed by the present invention
Method carries out data transmission.
Step S202：When the electric network data to be transmitted is high-priority data, by power private network frequently
The high-priority data is transferred to destination node by the link that direct transfers of section；
If electric network data waiting for transmission is high-priority data, illustrate that the data need in real time, quickly
Destination node is transferred to, therefore is transmitted using electric power radio communication private network frequency range, can more improve transmission
Efficiency, saving transmission time.
Step S203：When the electric network data to be transmitted is non-high priority data, according to default side
Method determines repeated link, is arrived the non-high priority data transfer by the repeated link
Destination node.
When electric network data to be transmitted is not high-priority data, such as data collection service, can be by this
The relay transmission method for proposing is invented to be transmitted, it is wireless to be avoided as much as unnecessarily taking up electric power
The frequency spectrum resource of the private network frequency range that communicates.
For the problem that prior art is present, the embodiment of the present invention proposes a kind of relay transmission mechanism,
Cognitive repeated link as shown in Figure 1, the mechanism not only ensure that 230MHz frequency range users connect
The fairness for entering, moreover it is possible to enable power grid user neatly to access idle channel, takes full advantage of idle frequency
The brought gain of spectrum, substantially increases the spectrum efficiency of 230MHz frequency ranges.
The step of embodiment of the present invention S201-S203, to the power network number of different priorities under general scenario
It is illustrated according to the process being transmitted by different transmission links respectively.But, art technology
Personnel when the distance between source node and destination node exceed it is to be appreciated that under individual instances, preset
During value, may be in the absence of the link that direct transfers, so as to cause source node and mesh between source node and destination node
Node between cannot directly be communicated, now high-priority data cannot directly pass through power private network
The link that direct transfers of frequency range is transmitted.Therefore, the method for the embodiment of the present invention, it is preferred that also include：
Step S204：When the source node exceeds preset value with the distance of the destination node, in
The electric network data to be transmitted is transferred to destination node after transmission link, the electric network data to be transmitted is
High-priority data or non-high priority data.
If destination node can be considered that the link that direct transfers does not exist apart from source node farther out, now, and pass through
Repeated link transmission information.
The distance between source node and destination node are judged in step S204, and step S201
In the priority of electric network data to be transmitted is judged, but " step described in embodiments of the present invention
Rapid S204 " and " step S201 ", not the priority to 2 deterministic process execution sequences is limited
Fixed, the present embodiment does not also constitute limiting the scope of the invention.Those skilled in the art are using
During the method transmission electric network data of the embodiment of the present invention, data priority can be first judged, it is also possible to first
Judge the distance between source node and destination node, then perform next step operation.
For example：Can first judging distance whether exceed preset value, if it is, directly passing through relay transmission
Link transmission；If not, judging data priority again, step is performed when for high-priority data
S202, performs step S203 when for non-high priority data.Equally, it is also possible to first judge that data are excellent
First level, when for high-priority data, gives tacit consent to by the link transmission that direct transfers, and whether judging distance exceeds
Preset value, if it is, can only be transmitted using repeated link, if it is not, then directly by the chain that direct transfers
Transmit on road；When for non-high priority data, no matter whether distance exceeds preset value, by relaying
Transmission link is transmitted.The relay transmission method based on 230M radio communication private networks of the embodiment of the present invention,
For the data service of different delay requirement, carried out data transmission by different frequency ranges respectively, carried significantly
The frequency spectrum service efficiency of 230MHz electric power radio communication private networks high, promotes two-forty demand business
Realize.On the premise of ensureing not disturbing primary user's proper communication, 230MHz is taken full advantage of special
The frequency spectrum resource of industry specialty channel, it is to avoid substantial amounts of frequency spectrum resource is wasted.
Embodiment two
As shown in figure 3, the step to determining repeated link in the step S203 of the embodiment of the present invention one
Suddenly it is further described, comprises the following steps：
Step S301：The source node is initiated frequency spectrum perception and sends perception solicited message to each neighbor node,
Each neighbor node is indicated to initiate frequency spectrum perception；
Source node can send a perception solicited message first when transmission electric network information is prepared, and notify it
Neighbor node initiate frequency spectrum perception, while itself is also carried out frequency spectrum perception.Frequency spectrum perception, refers to node
The frequency spectrum use information in wireless network is obtained by various signal detections and processing means.From wireless network
The functional stratification angle of network sees that frequency spectrum perception technology relates generally to physical layer and link layer, wherein physical layer
It is primarily upon various specific local detection algorithms, and link layer is primarily upon cooperation between user and right
Local perception, collaborative sensing and perception 3 aspects of mechanism optimization.Frequency spectrum perception technology belongs to ripe and shows
There is technology, will not be repeated here.
Step S302：Each neighbor node will perceive the current radio channel service condition that obtains and itself
Feedback of the information is to the source node；
By after the frequency spectrum perception stage, each neighbor node will perceive the current radio channel service condition for obtaining
Whether information and self information (position and can provide relay services) feed back to source node.
Preferably, each neighbor node using random back Preset Time retransmission mechanism feedback it is described currently without
Line channel usage and self information.Channel confliction can be caused because multiple neighbor nodes feed back simultaneously,
Information is caused to be lost, therefore in order to overcome by the influence that feedback information conflict is brought, the present invention is proposed
The method that random back retransmits (i.e. each node random back is fed back again after one default time), greatly
The probability clashed during feedback information is reduced greatly, time delay end to end is reduced, system is improved
Reliability.
Step S303：The source node according to the current radio channel service condition of each neighbor node and
Self information, a via node is selected using default selection algorithm；
Source node selects a via node according to the information for receiving, if it is possible to which one jumps to up to purpose
Node, that is, start to transmit electric network information.The algorithm of selection via node can be according to actual transmissions demand certainly
Row set, can such as select from source node recently and the best neighbours of communication channel quality between source node
Node as via node, it will be understood by those skilled in the art that the present invention not to selection algorithm in itself
Define, all selection algorithms for being that by selecting a via node should be included in of the invention wanting
Ask within the scope of protection, selection algorithm is not construed as limiting to protection scope of the present invention.
Step S304：Judge that can the source node be jumped to up to destination node by the via node one,
If it can, source node then is reached into the path of destination node as relay transmission chain by the via node
Road.If it is not, the via node repeating said steps S301- step S303, until selecting source
Node can reach N number of via node of destination node；Source node is arrived by N number of via node
Path up to destination node is used as repeated link.
If the via node that source node passes through to select can directly reach destination node, repeated link
As：Source node-via node-destination node.If source node can not be straight by the via node
It is connected to up to destination node, then illustrates that the via node is long with the distance between destination node, in addition it is also necessary to
Relayed by other via nodes.Now the via node needs repeat step S301-S303,
Until selecting N number of via node so that source node can pass sequentially through N number of via node and reach mesh
Node, i.e., source node-relaying cluster 1-relaying cluster 2 shown in Fig. 1-...-relaying cluster N- mesh
Node, now source node-relaying cluster 1-relaying cluster 2-...-relaying cluster N- destination nodes
Path is repeated link.
The relay transmission method based on 230M radio communication private networks of the embodiment of the present invention, for difference
The data service of delay requirement, is carried out data transmission by different frequency ranges respectively, is substantially increased
The frequency spectrum service efficiency of 230MHz electric power radio communication private networks, promotes the realization of two-forty demand business.
On the premise of ensureing not disturbing primary user's proper communication, 230MHz special industries are taken full advantage of special
The frequency spectrum resource of industry channel, it is to avoid substantial amounts of frequency spectrum resource is wasted.And retransmitted using random back,
The probability of feedback information conflict is greatly reduced, time delay end to end is reduced, improve system can
By property.
Embodiment three
As shown in figure 4, being the relay transmission based on 230M radio communication private networks of the embodiment of the present invention
The overall flow figure of method, comprises the following steps：
Step S401：Whether source node receives electric network data to be transmitted, judges the electric network data to be transmitted
It is high-priority data；
Step S402：When the electric network data to be transmitted is high-priority data, by power private network frequently
The high-priority data is transferred to destination node by the link that direct transfers of section；
Step S403：When the electric network data to be transmitted is non-high priority data, the source node hair
Play frequency spectrum perception and send perception solicited message to each neighbor node, indicate each neighbor node to initiate frequency
Spectrum is perceived；
Step S404：Each neighbor node will perceive the current radio channel service condition that obtains and itself
Feedback of the information is to the source node；Preferably, each neighbor node uses the re-transmission of random back Preset Time
Mechanism feeds back the current radio channel service condition and self information.
Step S405：Judge to whether there is available idle channel in the wireless channel of each neighbor node, such as
Fruit is present, then be transferred to step S406；If it does not exist, then being transferred to step S403.
Step S406：The source node according to the current radio channel service condition of each neighbor node and
Self information, a via node is selected using default selection algorithm；
Step S407：Judge that can the source node be jumped to up to destination node by the via node one,
If it can, being then determined as repeated link.If it is not, the via node repeating said steps
S403-step S406, until selecting N number of via node that source node reaches destination node；By source node
It is used as repeated link in the path that destination node is reached by N number of via node.
Step S408：Electric network data is transmitted by the repeated link for determining.
Step S409：When the source node exceeds preset value with the distance of the destination node, in
The electric network data to be transmitted is transferred to destination node after transmission link, the electric network data to be transmitted is
High-priority data or non-high priority data.
The present embodiment is the specific embodiment comprising embodiment one and embodiment two, with the He of embodiment one
Whole Advantageous Effects of embodiment two, will not be repeated here！
Example IV
As shown in figure 5, the invention allows for a kind of relay transmission based on 230M radio communication private networks
Device, including：
Service classification module 51, electric network data to be transmitted is received for source node, judges the transmission of electricity to be passed
Whether network data is high-priority data；
First transport module 52, for when the electric network data to be transmitted is high-priority data, passing through
The high-priority data is transferred to destination node by the link that direct transfers of power private network frequency range；
Second transport module 53, for when the electric network data to be transmitted be non-high priority data when, root
Repeated link is determined according to default method, by the repeated link by the non-high priority
Data transfer is to destination node.
Also include：
3rd transport module 54, for exceeding preset value with the distance of the destination node when the source node
When, the electric network data to be transmitted is transferred to by destination node by repeated link, it is described to be transmitted
Electric network data is high-priority data or non-high priority data.
Preferably, second transport module 53 is specifically included：
Frequency spectrum perception submodule 531, initiates frequency spectrum perception and is sent to each neighbor node for the source node
Solicited message is perceived, indicates each neighbor node to initiate frequency spectrum perception；
Feedback of the information submodule 532, makes for each neighbor node by the current radio channel for obtaining is perceived
The source node is fed back to situation and self information；
Node selects submodule 533, for the source node according to the current wireless communication of each neighbor node
Road service condition and self information, a via node is selected using default selection algorithm；
Link determination sub-module 534, for judging that can the source node be jumped to by the via node one
Up to destination node, if it can, then source node is made by the path that the via node reaches destination node
It is repeated link.
Preferably, the link determination sub-module 534 is additionally operable to,
If source node can not jump achieve the goal node, the via node by the via node one
Repeat the frequency spectrum perception submodule 531, feedback of the information submodule 532 and node selection submodule 533
Operation, until selecting N number of via node that source node reaches destination node；
Source node is reached into the path of destination node as relay transmission chain by the N number of via node
Road.
Preferably, feedback of the information submodule 532 is additionally operable to, when each neighbor node is preset using random back
Between retransmission mechanism feed back the current radio channel service condition and self information.
Relay transmission device based on 230M radio communication private networks of the invention, for different delay requirement
Data service, carried out data transmission by different frequency ranges respectively, substantially increase 230MHz electric power
The frequency spectrum service efficiency of radio communication private network, promotes the realization of two-forty demand business.Ensureing not do
On the premise of disturbing primary user's proper communication, the frequency of 230MHz special industry specialty channels is taken full advantage of
Spectrum resource, it is to avoid substantial amounts of frequency spectrum resource is wasted.And retransmitted using random back, substantially reduce
The probability of feedback information conflict, reduces time delay end to end, improves the reliability of system.
The present invention can have the specific embodiment of various multi-forms, be combined by taking Fig. 1-Fig. 5 as an example above
Accompanying drawing is to technical scheme explanation for example, and it is specific that this is not meant to that the present invention is applied
Example can only be confined in specific flow or example structure, and one of ordinary skill in the art should
Understand, specific embodiment presented above is some examples in various its preferred usages, any
The implementation method for embodying the claims in the present invention all should be in technical solution of the present invention scope required for protection
Within.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, is not used to
The limitation present invention, although being described in detail to the present invention with reference to the foregoing embodiments, for ability
For the technical staff in domain, it can still be repaiied to the technical scheme described in foregoing embodiments
Change, or equivalent is carried out to which part technical characteristic.It is all the spirit and principles in the present invention it
Interior, any modification, equivalent substitution and improvements made etc. should be included in protection scope of the present invention
Within.
Claims (10)
1. a kind of relay transmission method based on 230M radio communication private networks, it is characterised in that including：
Step A：Source node receives electric network data to be transmitted, judge the electric network data to be transmitted whether be
High-priority data；
Step B：When the electric network data to be transmitted is high-priority data, by power private network frequency range
The link that direct transfers the high-priority data is transferred to destination node；
Step C：When the electric network data to be transmitted is non-high priority data, according to default method
Repeated link is determined, by the repeated link by the non-high priority data transfer to mesh
Node.
2. method according to claim 1, it is characterised in that described to be determined according to default method
Repeated link includes：
Step C1：The source node is initiated frequency spectrum perception and sends perception solicited message to each neighbor node,
Each neighbor node is indicated to initiate frequency spectrum perception；
Step C2：Each neighbor node will perceive the current radio channel service condition and itself letter for obtaining
Breath feeds back to the source node；
Step C3：The source node according to the current radio channel service condition of each neighbor node and from
Body information, a via node is selected using default selection algorithm；
Step C4：Judge that can the source node be jumped to up to destination node by the via node one, such as
Fruit can, then using source node by the path of via node arrival destination node as repeated link.
3. method according to claim 2, it is characterised in that the step C4 also includes：
If source node can not jump achieve the goal node, the via node by the via node one
Repeating said steps C1- step C3, until selecting N number of via node that source node reaches destination node；
Source node is reached into the path of destination node as relay transmission chain by the N number of via node
Road.
4. method according to claim 2, it is characterised in that in the step C2, each neighbour
Occupy node using the retransmission mechanism of random back Preset Time feed back the current radio channel service condition and
Self information.
5. the method according to claim 1-4 any one, it is characterised in that also include：
When the source node exceeds preset value with the distance of the destination node, by repeated link
The electric network data to be transmitted is transferred to destination node, the electric network data to be transmitted is high priority number
According to or non-high priority data.
6. a kind of relay transmission device based on 230M radio communication private networks, it is characterised in that including：
Service classification module, electric network data to be transmitted is received for source node, judges the power transmission network to be passed
Whether data are high-priority data；
First transport module, for when the electric network data to be transmitted is high-priority data, by electricity
The high-priority data is transferred to destination node by the link that direct transfers of power private network frequency range；
Second transport module, for when the electric network data to be transmitted be non-high priority data when, according to
Default method determines repeated link, by the repeated link by the non-high priority number
According to being transferred to destination node.
7. device according to claim 6, it is characterised in that second transport module is specifically wrapped
Include：
Frequency spectrum perception submodule, initiates frequency spectrum perception and sends sense to each neighbor node for the source node
Know solicited message, indicate each neighbor node to initiate frequency spectrum perception；
Feedback of the information submodule, uses for each neighbor node by the current radio channel for obtaining is perceived
Situation and self information feed back to the source node；
Node selects submodule, for the source node according to the current radio channel of each neighbor node
Service condition and self information, a via node is selected using default selection algorithm；
Link determination sub-module, reaches for judging that can the source node be jumped to by the via node one
Destination node, if it can, then using source node by the via node reach destination node path as
Repeated link.
8. device according to claim 7, it is characterised in that the link determination sub-module is also used
In,
If source node can not jump achieve the goal node, the via node by the via node one
The operation that the frequency spectrum perception submodule, feedback of the information submodule and node select submodule is repeated, until
Select N number of via node that source node reaches destination node；
Source node is reached into the path of destination node as relay transmission chain by the N number of via node
Road.
9. device according to claim 7, it is characterised in that feedback of the information submodule is additionally operable to,
Each neighbor node feeds back the current radio channel and uses feelings using the retransmission mechanism of random back Preset Time
Condition and self information.
10. the device according to claim 6-9 any one, it is characterised in that also include：
3rd transport module, for when the distance of the source node and the destination node exceeds preset value,
The electric network data to be transmitted is transferred to by destination node, the power transmission network to be passed by repeated link
Data are high-priority data or non-high priority data.
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