CN107864412A - A kind of arrowband intercommunication terminal multi-hop remote communication method and system - Google Patents
A kind of arrowband intercommunication terminal multi-hop remote communication method and system Download PDFInfo
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- CN107864412A CN107864412A CN201710909272.7A CN201710909272A CN107864412A CN 107864412 A CN107864412 A CN 107864412A CN 201710909272 A CN201710909272 A CN 201710909272A CN 107864412 A CN107864412 A CN 107864412A
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Abstract
The present invention proposes a kind of arrowband intercommunication terminal multi-hop remote communication method and system, including：Build multiple network groups, a relay type arrowband intercommunication terminal and multiple common arrowband intercommunication terminals are configured in each network group, command centre's arrowband intercommunication terminal, calling of the intercommunication terminal forwarding in relay type arrowband from command centre's arrowband intercommunication terminal are configured outside network group；Forward the calling of the relay type arrowband intercommunication terminal from other groups；The calling that common arrowband intercommunication terminal of the forwarding from this group is organized to other；Calling of each relay type arrowband intercommunication terminal forwarding from command centre's arrowband intercommunication terminal；Forward the calling of the relay type arrowband intercommunication terminal from other groups；The calling that common arrowband intercommunication terminal of the forwarding from this group is organized to other.The present invention meets user's specific demand and lifting user experience significantly, especially under urgent special no public network usage scenario, can communicate contact and side group user foundation more telecommunication business between Shi Ge groups.
Description
Technical field
The present invention relates to narrow-band digital intercom technical field, more particularly to a kind of arrowband intercommunication terminal multi-hop is remote
Communication means and system.
Background technology
Along with attention of the various countries to public safety radio communication construction, narrowband speech communicates with technology maturation, greatly
(in) covering of area's system, networking and maintenance cost are low, Survivabilities of Networks is strong, spectrum requirement is low, the advantage such as easy to use.And it is based on
LTE broadband connections can provide the data capability support of superelevation, support HD video, multimedia delivery, high-speed data service, be
Commanding and decision-making provides efficient data and supported, has benefited from LTE framework, but LTE public networks do not support the covering of great Qu systems, networking and maintenance
Cost is of a relatively high, spectrum requirement is larger.So wide and narrow strip integration technology is applied and given birth to, this two kinds of technologies of technological incorporation, take
Long benefit is short, can flexibly be selected according to the different demands in specific region.
It is all well and good selection especially for special trade wide and narrow strip integration technology.Especially on the ground that public network does not cover
Side, rescue or remote mountains rescue urgent need want liaison command scheduling such as after meagrely-populated, dense jungle, shake, so
Narrow band communication provides supplement for public network, there is provided emergency communication.But current state narrow band communication, apart from limited, there is an urgent need to one
The method that kind technology can improve narrow band communication distance.
The content of the invention
The purpose of the present invention is intended at least solve one of described technological deficiency.
Therefore, it is an object of the invention to propose a kind of arrowband intercommunication terminal multi-hop remote communication method and system.
To achieve these goals, embodiments of the invention provide a kind of arrowband intercommunication terminal multi-hop telecommunication side
Method, multiple network groups are built, one relay type arrowband intercommunication terminal of configuration and multiple commonly narrow in each network group
Band intercommunication terminal, configures command centre's arrowband intercommunication terminal outside the network group, wherein, each relay type arrowband pair
Say that terminal comprises at least one of following working method：
(1) calling from command centre arrowband intercommunication terminal is forwarded；
(2) calling of relay type arrowband intercommunication terminal of the forwarding from other groups；
(3) calling that common arrowband intercommunication terminal of the forwarding from this group is organized to other；
The arrowband intercommunication terminal multi-hop remote communication method, comprises the following steps：
Step S1, after the intercommunication enabled instruction of user is detected, according to the network node information pre-set, judge
The terminal type of the machine, communicated if the machine is common narrowband terminal according to general frequency in group, if it is determined that the machine forwards
Formula arrowband intercommunication terminal, then according to forwarding network frequency communication, perform step S2；
Step S2, relay type arrowband intercommunication terminal use different frequent points according to two time slots in group and outside group, connect
The collection of letters number；
Step S3, the relay type arrowband intercommunication terminal detection signal intensity, and frame synchronization information is found, more new node
Signal intensity table；
Step S4, relay type arrowband intercommunication terminal to frame synchronization to data parsed and add this node letter
Breath, judge whether to continue to be forwarded to other relay type arrowband intercommunication terminals progress multi-hop transmissions, by other relay type arrowband intercommunications
Terminal repeats step S2 to step S4, and no person goes to the common arrowband intercommunication terminal of this group；
Step S5, the universal arrowband intercommunication terminal of this group receive whole from relay type arrowband intercommunication under receipts pattern
The information parsing data at end simultaneously judge whether it is to call this node；
Step S6, if calling this node, carry out response confirmation transmission；
Step S7, this group of relay type arrowband intercommunication terminal frequency point of time slot in group receive the common arrowband intercommunication terminal of this group
Data are parsed after calling；
Step S8, the parsing data are forwarded by relay type arrowband intercommunication terminal, according to the node signal strength
The best purpose frequency of table selection channel quality, is forwarded to corresponding purpose relay type arrowband intercommunication terminal；
Step S9, the purpose relay type arrowband intercommunication terminal in step S8 receive whether information analysis judgment calls
This group of end member, if being forwarded to corresponding common arrowband intercommunication terminal according to frequency in group, otherwise need to be forwarded to it
His relay type arrowband intercommunication terminal, repeat step S8 and step S9；
Step S10, the common arrowband intercommunication terminal or command centre's arrowband intercommunication terminal are carried out after receiving information
Parsing, judges whether to call this node, and preservation current talking communication link is opened after if it is parsing node communications link information
Beginning proper communication, receive information.
Further, the step S4, comprises the following steps：
Step S401, relay type arrowband intercommunication terminal is according to frame synchronization result and node signal strength table, more cenotype
The channel quality table and link-quality table answered；
Step S402, to receiving the node number in information compared with relay type system network nodes, parse without
Relay type arrowband intercommunication terminal；
Step S403, according to parsing obtain without relay type arrowband intercommunication terminal, distribute slot table and corresponding
Frequency；
Step S404, this nodal information is added in the data message to be forwarded received, turned for purpose to be sent to
Hairdo arrowband intercommunication terminal establishes communication link quality table and provides information；
Step S405, according to time slot to without relay type arrowband intercommunication terminal be repeated in n times forwarding.
Further, the frequency of each network group is different, and the relay type arrowband intercommunication terminal in each group is being located
When under reception patterns, frequency values are received using the first time slot and receive the calling from other relay type arrowband intercommunication terminals organized,
The calling that other are organized using common arrowband intercommunication terminal of the second time slot receipts frequency values reception from this group.
Further, by relay type arrowband intercommunication terminal, common arrowband intercommunication terminal and other of this group are organized general
Logical arrowband intercommunication terminal or command centre's arrowband intercommunication terminal are communicated.
The embodiment of the present invention also proposes a kind of arrowband intercommunication terminal multi-hop telecommunication system, including：Multiple relay types
Arrowband intercommunication terminal, multiple common arrowband intercommunication terminals and command centre's arrowband intercommunication terminal, wherein, it is small to build multiple networks
Group, a relay type arrowband intercommunication terminal and multiple common arrowband intercommunication terminals are each configured in the network group, described
Command centre's arrowband intercommunication terminal is configured outside network group, wherein,
Each common arrowband intercommunication terminal is used to be communicated with other common arrowband intercommunication terminals in this group, with
And the relay type arrowband intercommunication terminal and common the arrowband intercommunication terminal or command centre arrowband pair of other groups for passing through this group
Say that terminal is communicated；
Each relay type arrowband intercommunication terminal is used to forward the calling from command centre arrowband intercommunication terminal；
Forward the calling of the relay type arrowband intercommunication terminal from other groups；The common arrowband intercommunication terminal from this group is forwarded to other
The calling of group, wherein, relay type arrowband intercommunication terminal upon receipt of the signals, detection signal intensity, and it is same to find frame
Information is walked, updates node signal strength table；To frame synchronization to data parsed and add this nodal information, judge whether after
Continuous other relay type arrowband intercommunication terminals that are forwarded to carry out multi-hop transmission, and no person goes to the common arrowband intercommunication terminal of this group；
The universal arrowband intercommunication terminal of this group receives the information from relay type arrowband intercommunication terminal under receipts pattern
Parsing data simultaneously judge whether it is to call this node；If it is response confirmation transmission is carried out；This group of relay type arrowband pair
Say that terminal frequency point of time slot in group parses data after receiving the common arrowband intercommunication terminal calling of this group；
The parsing data are forwarded by relay type arrowband intercommunication terminal, select to believe according to the node signal strength table
The top-quality purpose frequency in road, it is forwarded to corresponding purpose relay type arrowband intercommunication terminal；According to purpose relay type arrowband pair
Say that terminal receives whether information analysis judgment calls this group of end member, if being forwarded to according to frequency in group corresponding general
Logical arrowband intercommunication terminal, otherwise needs to be forwarded to other relay type arrowband intercommunication terminals；
The common arrowband intercommunication terminal or command centre's arrowband intercommunication terminal are parsed after receiving information, are judged
Whether this node is called, and preservation current talking communication link starts positive normal open after if it is parsing node communications link information
Letter, receive information.
Further, relay type arrowband intercommunication terminal is corresponding according to frame synchronization result and node signal strength table, renewal
Channel quality table and link-quality table；To receiving the node number in information compared with relay type system network nodes, parsing
Go out without relay type arrowband intercommunication terminal；According to parsing obtain without relay type arrowband intercommunication terminal, during distribution
Gap table and corresponding frequency；This nodal information is added in the data message to be forwarded received, is turned for purpose to be sent to
Hairdo arrowband intercommunication terminal establishes communication link quality table and provides information；According to time slot to without relay type arrowband intercommunication it is whole
End is repeated in n forwarding.
Further, relay type arrowband intercommunication terminal includes：Signal strength detection module, demodulation and synchronization module, solution
Analyse node module, channel quality storage table module, organize forwarding module in outer multi-hop transmission module and group, wherein,
The signal strength detection module is used to the signal received detect to judge whether signal is useful signal；
The demodulation is demodulated for demodulating algorithm with synchronization module and synchronized using waveform algorithm is slided；It is described
Node module is parsed to be used for it is determined that parsing the data after demodulation after in synchronization；
The channel quality storage table module is used for storing and resolving nodal information, judgement be forwarded to it is other common in this group
Arrowband intercommunication terminal is still forwarded to the outer terminal of group；
Forwarding module is intended for other arrowband intercommunications ends in this group for parsing information by demodulation result in described group
End, the information being transmitted in this group is forwarded by this group of channel frequency
Described group of outer multi-hop transmission module is forwarded to other groups for that will demodulate information by multifrequency point.
Further, the frequency of each network group is different, and the relay type arrowband intercommunication terminal in each group is being located
When under reception patterns, frequency values are received using the first time slot and receive the calling from other relay type arrowband intercommunication terminals organized,
The calling that other are organized using common arrowband intercommunication terminal of the second time slot receipts frequency values reception from this group.
Further, under relay type arrowband intercommunication terminal is given tacit consent in a receive mode, turn when receiving and needing forward signal
Shift to emission mode.
Arrowband intercommunication terminal multi-hop remote communication method according to embodiments of the present invention and system, arrowband intercommunication terminal are used
Whether family need not pay close attention to each terminal of each group in whole system again from oneself beyond intrinsic communication distance, but
By every group of relay type arrowband intercommunication terminal multichannel multi-hop transmission and response confirm to establish the good link of communication quality come
Proper communication.This can be called from its far arrowband intercommunication terminal for System Command Center narrowband terminal, as long as this
Invention Zhong Ge groups are in suitable position, can so meet user's specific demand and lifting user experience significantly, especially
It is under urgent special no public network usage scenario, can communicate contact between Shi Ge groups and side group user establish it is farther
Distance communication business.
The present invention can meet special user's demand, when in the case of without public network, unlike former common narrow-band digital intercommunication
Machine communication distance is at most also with regard to 4 kms, and that user's communication distance can be allowed to be passed with multiple groups is several for this method
Ten kilometers or farther, so as to greatly reduce public network construction cost, make user go deep into complex environment can also with commander
The heart or the communication of other Group Cooperations.Especially need most under emergency scene, user can be helped to establish communication quickly and understood more
Remote field condition and each group's implementation status.The present invention can help user establish the very first time after calamity communication and
Scheduling business, it is uniformly coordinated scheduling for command centre and a kind of communication support is provided.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart according to the arrowband intercommunication terminal multi-hop remote communication method of the embodiment of the present invention；
Fig. 2 is the arrowband intercommunication terminal according to the embodiment of the present invention without public network overlay environment communication network topology schematic diagram；
Fig. 3 is the arrowband intercommunication terminal schematic network structure according to the embodiment of the present invention；
Fig. 4 is the relay type arrowband intercommunication terminal block schematic illustration according to the embodiment of the present invention；
Fig. 5 is the arrowband intercommunication terminal multi-hop telecommunication overall procedure schematic diagram according to the embodiment of the present invention；
Fig. 6 is the relay type arrowband intercommunication terminal forwarding service schematic flow sheet according to the embodiment of the present invention；
Fig. 7 is the structure chart according to the arrowband intercommunication terminal multi-hop telecommunication system of the embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
For narrowband terminal user's communication distance, especially execution task is worked as and exceeds its communication distance under special circumstances
Afterwards, the angle used from user, the distance increase that user wishes me and can communicate far with arrowband intercommunication use it is convenient and swift again
Public network base station need not be established.It is short and can only lean on raising tranmitting frequency to face communication distance for narrowband terminal at present, solves limited
Communication distance, but can not meet the demand that special trade performs task.In this no public network, carry out an urgent task, it is not necessary to increase
, it is necessary to a kind of method for making user carry out telecommunication in the case of addition sheet.
Therefore, the embodiment of the present invention provides a kind of arrowband intercommunication terminal multi-hop remote communication method and system, can solve
Certainly special trade user is communicated more at a distance in without public network or environment with a varied topography, avoids each group without public affairs
It can not be intercommunicated when task is deeply performed in the case of net, this narrowband terminal can make each Group Cooperation perform task efficiency more
Efficiently.
As shown in figure 1, the arrowband intercommunication terminal multi-hop remote communication method of the embodiment of the present invention, it is small to build multiple networks
Group, a relay type arrowband intercommunication terminal and multiple common arrowband intercommunication terminals are configured in each network group, in network group
Outer configuration command centre arrowband intercommunication terminal.It should be noted that the frequency of each network group is different, using different group of alien frequencies,
With group with frequency form.
In one embodiment of the invention, each relay type arrowband intercommunication terminal comprise at least following working method it
One：
(1) calling from command centre's arrowband intercommunication terminal is forwarded；
(2) calling of relay type arrowband intercommunication terminal of the forwarding from other groups；
(3) calling that common arrowband intercommunication terminal of the forwarding from this group is organized to other.
Relay type arrowband intercommunication terminal in each group receives frequency values when descending in a receive mode, using the first time slot
The calling of the relay type arrowband intercommunication terminal from other groups is received, it is general from this group to receive frequency values reception using the second time slot
The calling that logical arrowband intercommunication terminal is organized to other.
Specifically, relay type arrowband intercommunication terminal is the terminal for uniquely having in each group forwarding capability.Relay type arrowband
Intercommunication terminal has privilege in group, and command centre or other groups of relay type arrowband intercommunication terminals can be forwarded to exhale other group
Cry the calling that the common narrowband terminal of this group can also be forwarded to other groups of common narrowband terminal；Between forwarding in this group
Calling, received so it is typically in receipts state, when receipts using double time slots and first time slot receives frequency values and second
Time slot receipts frequency values are different, thus are avoided that generation network conflict.
It is that relay type arrowband intercommunication terminal is the relay type arrowband intercommunication terminal point each organized that first time slot, which receives frequency values,
With specific frequency, it is specifically used to receive the call information that other relay type arrowbands intercommunication terminal forwards, parsing information is
It is no to need to forward；Second time slot receives frequency values as the other common narrowband terminal frequency values of this group, is specifically used to receive this
Whether group information is seen needs to forward.
If the information that receives above needs to forward, section without forwarding is judged according to nodal information is demodulated
After point information, multifrequency point forwarding information is carried out.
It should be noted that relay type arrowband intercommunication terminal acquiescence in a receive mode under, receive need forward signal when
Change to emission mode.
Specifically, with reference to shown in figure 1 and Fig. 5, the arrowband intercommunication terminal multi-hop remote communication method of the embodiment of the present invention,
Comprise the following steps：
Step S1, after the intercommunication enabled instruction of user is detected, according to the network node information pre-set, judge
The terminal type of the machine, communicated if the machine is common narrowband terminal according to general frequency in group, if it is determined that the machine forwards
Formula arrowband intercommunication terminal, then according to forwarding network frequency communication, perform step S2.
In this step, user selects to converse with purpose intercommunication terminal in the terminal of oneself, after pressing PPT keys, according to
The network node information pre-set, judge which kind of terminal type is the machine be, if common narrowband terminal is led to according in group
Synchronous code is first sent with frequency, is otherwise that there is the terminal of forwarding capability to carry out forwarding network frequency first to send synchronous code.
Step S2, relay type arrowband intercommunication terminal use different frequent points according to two time slots in group and outside group, receive letter
Number.
Step S3, relay type arrowband intercommunication terminal detection signal intensity, and frame synchronization information is found, update node signal
Intensity table, establish link for follow-up call and make reference.
Step S4, relay type arrowband intercommunication terminal to frame synchronization to data parsed and add this nodal information, sentence
It is disconnected whether to continue to be forwarded to other relay type arrowband intercommunication terminals progress multi-hop transmissions, by other relay type arrowband intercommunication terminal weights
Step S2 to step S4 is performed again, and no person goes to the common arrowband intercommunication terminal of this group.
As shown in fig. 6, step S401, relay type arrowband intercommunication terminal according to frame synchronization result and node signal strength table,
Update corresponding channel quality table and link-quality table.
In this step, intercommunication terminal system in relay type arrowband is sent into synchronous according to the strong signal of signal intensity, in synchronization
The node number added in information is parsed afterwards and namely passes through conversion link node, and updates corresponding channel quality table and link matter
Scale.
Step S402, to receiving the node number in information compared with relay type system network nodes, parse without
Relay type arrowband intercommunication terminal.
Step S403, according to parsing obtain without relay type arrowband intercommunication terminal, distribute slot table and corresponding
Frequency.
Step S404, this nodal information is added in the data message to be forwarded received, turned for purpose to be sent to
Hairdo arrowband intercommunication terminal establishes communication link quality table and provides information；
Step S405, according to time slot to without relay type arrowband intercommunication terminal be repeated in n times forwarding.
In this step, it can also be 5 times to repeat to send 3 times to each relay type terminal node, receive terminal and calculate most
The nearly channel link qualities with transmission terminal three times；Certainly it is more stable that channel quality is tried to achieve repetition transmission times more, but too much
The oversize impact effect of system delay.
Step S5, the universal arrowband intercommunication terminal of this group in the receiving mode, are received from relay type arrowband intercommunication terminal
Information parsing data and judge whether be call this node.
Step S6, if calling this node, carry out response confirmation transmission.
Step S7, this group of relay type arrowband intercommunication terminal frequency point of time slot in group receive the common arrowband intercommunication terminal of this group
Data are parsed after calling.
Step S8, the parsing data are forwarded by relay type arrowband intercommunication terminal, selected according to node signal strength table
The best purpose frequency of channel quality is selected, is forwarded to corresponding purpose relay type arrowband intercommunication terminal.
Step S9, the purpose relay type arrowband intercommunication terminal in step S8 receive whether information analysis judgment calls
This group of end member, if being forwarded to corresponding common arrowband intercommunication terminal according to frequency in group, otherwise need to be forwarded to it
His relay type arrowband intercommunication terminal, repeat step S8 and step S9.
Step S10, common arrowband intercommunication terminal or command centre's arrowband intercommunication terminal are parsed after receiving information,
Judge whether to call this node, preservation current talking communication link starts normally after if it is parsing node communications link information
Communication, receive information.
In this step, common arrowband intercommunication terminal or command centre's terminal receive information parsing information judge response
Whether confirmation replys this terminal, if not processing, is preserved after if so parsing node communications link information
Current talking communication link starts proper communication.
Based on above-mentioned steps understand, by relay type arrowband intercommunication terminal, the common arrowband intercommunication terminal of this group and other
The common arrowband intercommunication terminal or command centre's arrowband intercommunication terminal of group are communicated.Arrowband intercommunication terminal multi-hop in the present invention
Telecommunication function has been carried out, and carries out multi-hop transmission by each group of relay type arrowband intercommunication terminal and response confirms, make
Whether user does not have to pay close attention to each narrowband terminal can be in the range of communication distance.
Below with reference to Fig. 2 and Fig. 3 to the arrowband intercommunication terminal of the embodiment of the present invention without public network overlay environment communication network ring
Border illustrates.
Specifically, Fig. 2 show arrowband intercommunication terminal without public network overlay environment communication network topology schematic diagram.The network is opened up
Flutter system mainly include common arrowband intercommunication terminal, relay type arrowband intercommunication terminal, command centre's arrowband intercommunication terminal, group 1,
Group 2 and group 3.Invention defines three types arrowband intercommunication terminal, respectively command centre arrowband intercommunication terminal can be with
Communicated with each group, when communication distance can utilize neighbouring other group's relay type arrowbands pair beyond its communication distance
Say that terminal carries out multi-hop transmission, until being forwarded to purpose group relay type arrowband intercommunication terminal, command centre's arrowband intercommunication terminal
Transmission power be 2 times of common arrowband intercommunication terminal, it is therefore an objective to improve communication distance.Relay type arrowband intercommunication terminal in fact and
Command centre's arrowband intercommunication terminal is the same, and it is only just in emission state, other moment one in group when needing forwarding
As keep reception state.Common arrowband intercommunication terminal is the intercommunication in group, if when needing to call other group's terminals
Just need to carry out multi-hop transmission formula connection setup call link by group's relay type arrowband intercommunication terminal beyond communication distance, reach
To telecommunication.
Each group is all with a relay type arrowband intercommunication terminal and some common arrowband intercommunication terminals, and any one group
Distance to other groups around is realized in net arbitrarily without departing from the communication distance can of relay type arrowband intercommunication terminal
Two arrowband intercommunication terminals communications, such as No. 3 terminals can be called to No. 16 terminals either farther group's terminal or No. 16
It is 2 common narrow that terminal, which can call the distance that to No. 1 command centre's terminal, can so make narrow-band communications network transmission farther,
The communication distance being unable to reach with intercommunication terminal.Each circle drawn in figure be the communication that can reach of a kind of narrowband terminal away from
From.
Fig. 2 show arrowband intercommunication terminal schematic network structure.The network structure is the coorporative network classified based on Fig. 1
Network group unit, it is main to include meshed network, network group 1, network group 2 and network group 3 with forwarding capability.Network
Different frequent points channel is respectively adopted in group 1, network group 2 and network group 3, so intercommunication is unable between their network groups,
And can be with intercommunication inside each network group, and in each group there is relay type arrowband intercommunication terminal to be typically in receipts shape
State, it does not forward in group between calling, the calling of other groups of calling and other groups of other groups of calling exhales in a forwarding group
Cry, the intermediate node as multi-hop.Each member presets different frequencies in meshed network with forwarding capability, when in receipts
Command centre arrowband intercommunication terminal 1 is constantly in the frequency set to it and received during state, and the intercommunication of relay type arrowband is whole
End 2,9,14 is received with two time slots and the meshed network frequency and networking group frequency reception signal of forwarding capability is respectively adopted,
It is to carry out repetition multipass transmission by the meshed network frequency of forwarding capability always to be forwarded during forwarding.
The present invention solves arrowband intercommunication terminal remote communication method by the method for above-mentioned multi-hop.User just starts to make
It is exactly that terminal is weaved into several groups that used time, which needs distribution, and each assembles a standby enhanced intercommunication terminal namely
Relay type arrowband intercommunication terminal, the communication distance of relay type arrowband intercommunication terminal are the communication distances 2 of common arrowband intercommunication terminal
More than times, and this terminal has forwarding multi-hop function.
As shown in fig. 7, the embodiment of the present invention also provides a kind of arrowband intercommunication terminal multi-hop telecommunication system, including：
Multiple relay type arrowbands intercommunication terminal 200, multiple common arrowband intercommunication terminals 100 and command centre's arrowband intercommunication terminal 300.Its
In, multiple network groups are built, a relay type arrowband intercommunication terminal 200 and multiple common arrowbands are configured in each network group
Intercommunication terminal 100, command centre's arrowband intercommunication terminal 300 is configured outside network group.
In one embodiment of the invention, the frequency of each network group is different, using different group of alien frequencies, with group with frequency shape
Formula.Relay type arrowband intercommunication terminal 200 in each group is received frequency values when descending in a receive mode, using the first time slot and connect
The calling of the relay type arrowband intercommunication terminal 200 from other groups is received, receiving frequency values using the second time slot receives from this group
100 calling to other groups of intercommunication terminal of common arrowband.
Specifically, each common arrowband intercommunication terminal 100 is used to enter with other common arrowband intercommunication terminals 100 in this group
Row communication, and pass through the relay type arrowband intercommunication terminal 200 of this group and the common arrowband intercommunication terminal 100 of other groups or commander
Central narrowband intercommunication terminal 300 is communicated.
Each relay type arrowband intercommunication terminal 200 is used to forward the calling from command centre's arrowband intercommunication terminal 300；Turn
Send the calling of the relay type arrowband intercommunication terminal 200 from other groups；Forward the common arrowband intercommunication terminal 100 from this group right
The calling of other groups.
Specifically, relay type arrowband intercommunication terminal 200 is the terminal for uniquely having in each group forwarding capability.Relay type is narrow
Band intercommunication terminal 200 has privilege in group, can forward command centre or other groups of relay type arrowband intercommunication terminals 200 to another
Outer group calls can also forward calling of the common narrowband terminal of this group to other groups of common narrowband terminal；Without forwarding this group
Calling between interior, received so it is typically in receipts state, when receipts using double time slots and first time slot receives frequency values
It is different with second time slot receipts frequency values, it thus is avoided that generation network conflict.
It is that relay type arrowband intercommunication terminal 200 is the relay type arrowband intercommunication terminal each organized that first time slot, which receives frequency values,
The 200 specific frequencies of distribution, are specifically used to receive the call information that other relay type arrowbands intercommunication terminal 200 forwards, solve
Whether analysis information needs to forward；Second time slot receives frequency values as the other common narrowband terminal frequency values of this group, special to use
See whether need to forward to receive this group information.
If the information that receives above needs to forward, section without forwarding is judged according to nodal information is demodulated
After point information, multifrequency point forwarding information is carried out.
It should be noted that under relay type arrowband intercommunication terminal 200 is given tacit consent in a receive mode, forward signal is needed receiving
When change to emission mode.
Relay type arrowband intercommunication terminal 200 upon receipt of the signals, detection signal intensity, and find frame synchronization information,
Update node signal strength table；To frame synchronization to data parsed and add this nodal information, judge whether to continue to forward
Multi-hop transmission is carried out to other relay type arrowband intercommunication terminals 200, no person goes to the common arrowband intercommunication terminal 100 of this group.
The universal arrowband intercommunication terminal of this group receives the information from relay type arrowband intercommunication terminal 200 under receipts pattern
Parsing data simultaneously judge whether it is to call this node；If it is response confirmation transmission is carried out；This group of relay type arrowband pair
Say that the frequency point of time slot in group of terminal 200 is received after the common arrowband intercommunication terminal 100 of this group calls and parse data.
The parsing data are forwarded by relay type arrowband intercommunication terminal 200, select to believe according to node signal strength table
The top-quality purpose frequency in road, it is forwarded to corresponding purpose relay type arrowband intercommunication terminal 200；According to purpose relay type arrowband
Intercommunication terminal 200 receives whether information analysis judgment calls this group of end member, if being forwarded to pair according to frequency in group
The common arrowband intercommunication terminal 100 answered, otherwise need to be forwarded to other relay type arrowband intercommunication terminals 200.Common arrowband intercommunication
Terminal 100 or command centre's arrowband intercommunication terminal 300 are parsed after receiving information, judge whether to call this node, such as
Fruit is that preservation current talking communication link starts proper communication, receive information after parsing node communications link information.
In one embodiment of the invention, relay type arrowband intercommunication terminal 200 is according to frame synchronization result and node signal
Intensity table, update corresponding channel quality table and link-quality table；To receiving the node number in information and relay type system network
Network node compares, parse without relay type arrowband intercommunication terminal 200；According to parsing obtain without relay type it is narrow
Band intercommunication terminal 200, distributes slot table and corresponding frequency；This node letter is added in the data message to be forwarded received
Breath, establishes communication link quality table for purpose relay type arrowband intercommunication terminal 200 to be sent to and provides information；According to time slot to not
The relay type arrowband intercommunication terminal 200 of process is repeated in n forwarding.
Specifically, as shown in figure 4, relay type arrowband intercommunication terminal 200 includes：Signal strength detection module, demodulation with it is same
Module is walked, node module, channel quality storage table module is parsed, organizes forwarding module in outer multi-hop transmission module and group.
Signal strength detection module is used to the signal received detect to judge whether signal is useful signal.Demodulation
It is demodulated for demodulating algorithm with synchronization module and is synchronized using waveform algorithm is slided；Node module is parsed to be used for true
The data after demodulation are parsed after synchronously going up calmly.Channel quality storage table module is used for storing and resolving nodal information, and judgement is to turn
It is dealt into other common arrowband intercommunication terminals 100 in this group and is still forwarded to the outer terminal of group.Forwarding module is used to be tied by demodulation in group
Fruit parses information and is intended for other arrowband intercommunication terminals in this group, and the information being transmitted in this group is by this group of channel frequency
Point forwards.The outer multi-hop transmission module of group is forwarded to other groups for that will demodulate information by multifrequency point.
Specifically, signal strength detection module mainly judges whether signal is useful signal to receiving signal and doing to detect, such as
Fruit is that useful signal does demodulation with synchronous and leave signal strength values into channel quality storage table in next step, according to demodulation calculation
Method is demodulated and does synchronization using waveform algorithm is slided, it is determined that being parsed after synchronization is upper to the data after demodulation and parsing node letter
Into channel quality storage table module, it is to be forwarded to other common arrowband intercommunication terminals 100 in this group to go back to carry out judgement for breath storage
It is to be forwarded to the outer terminal of group.Forwarding module parses information by demodulation result and is intended for other arrowband intercommunications ends in this group in group
End, the information being transmitted in this group is forwarded by this group of channel frequency.The outer multi-hop transmission module of group is demodulating
Information be forwarded to other groups but do not know with this group around that group can lead to it is upper, so need by multifrequency point send turn
Hair, current forwarding need not issue the relay type terminal node having already passed through again, it is only necessary to each using remaining pre-set
The frequency of group's relay type arrowband intercommunication terminal 200 is sent, and repetition multifrequency point may be needed to send in this process several
It is secondary.
Arrowband intercommunication terminal multi-hop remote communication method according to embodiments of the present invention and system, arrowband intercommunication terminal are used
Whether family need not pay close attention to each terminal of each group in whole system again from oneself beyond intrinsic communication distance, but
By every group of relay type arrowband intercommunication terminal multichannel multi-hop transmission and response confirm to establish the good link of communication quality come
Proper communication.This can be called from its far arrowband intercommunication terminal for System Command Center narrowband terminal, as long as this
Invention Zhong Ge groups are in suitable position, can so meet user's specific demand and lifting user experience significantly, especially
It is under urgent special no public network usage scenario, can communicate contact between Shi Ge groups and side group user establish it is farther
Distance communication business.
The present invention can meet special user's demand, when in the case of without public network, unlike former common narrow-band digital intercommunication
Machine communication distance is at most also with regard to 4 kms, and that user's communication distance can be allowed to be passed with multiple groups is several for this method
Ten kilometers or farther, so as to greatly reduce public network construction cost, make user go deep into complex environment can also with commander
The heart or the communication of other Group Cooperations.Especially need most under emergency scene, user can be helped to establish communication quickly and understood more
Remote field condition and each group's implementation status.The present invention can help user establish the very first time after calamity communication and
Scheduling business, it is uniformly coordinated scheduling for command centre and a kind of communication support is provided.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.The scope of the present invention
By appended claims and its equivalent limit.
Claims (9)
- A kind of 1. arrowband intercommunication terminal multi-hop remote communication method, it is characterised in that multiple network groups are built, it is each described A relay type arrowband intercommunication terminal and multiple common arrowband intercommunication terminals are configured in network group, is matched somebody with somebody outside the network group Put command centre's arrowband intercommunication terminal, wherein, each relay type arrowband intercommunication terminal comprise at least following working method it One：(1) calling from command centre arrowband intercommunication terminal is forwarded；(2) calling of relay type arrowband intercommunication terminal of the forwarding from other groups；(3) calling that common arrowband intercommunication terminal of the forwarding from this group is organized to other；The arrowband intercommunication terminal multi-hop remote communication method, comprises the following steps：Step S1, after the intercommunication enabled instruction of user is detected, according to the network node information pre-set, judge the machine Terminal type, communicated if the machine is common narrowband terminal according to general frequency in group, if it is determined that the machine relay type is narrow Band intercommunication terminal, then according to forwarding network frequency communication, perform step S2；Step S2, relay type arrowband intercommunication terminal use different frequent points according to two time slots in group and outside group, receive letter Number；Step S3, the relay type arrowband intercommunication terminal detection signal intensity, and frame synchronization information is found, update node signal Intensity table；Step S4, relay type arrowband intercommunication terminal to frame synchronization to data parsed and add this nodal information, sentence It is disconnected whether to continue to be forwarded to other relay type arrowband intercommunication terminals progress multi-hop transmissions, by other relay type arrowband intercommunication terminal weights Step S2 to step S4 is performed again, and no person goes to the common arrowband intercommunication terminal of this group；Step S5, the universal arrowband intercommunication terminal of this group are received from relay type arrowband intercommunication terminal under receipts pattern It is to call this node that information, which parses data and judged whether,；Step S6, if calling this node, carry out response confirmation transmission；Step S7, this group of relay type arrowband intercommunication terminal frequency point of time slot in group receive the common arrowband intercommunication terminal calling of this group After parse data；Step S8, the parsing data are forwarded by relay type arrowband intercommunication terminal, selected according to the node signal strength table The best purpose frequency of channel quality is selected, is forwarded to corresponding purpose relay type arrowband intercommunication terminal；Step S9, the purpose relay type arrowband intercommunication terminal in step S8 receive whether information analysis judgment calls this group End member, if being forwarded to corresponding common arrowband intercommunication terminal according to frequency in group, otherwise need to be forwarded to other turns Hairdo arrowband intercommunication terminal, repeat step S8 and step S9；Step S10, the common arrowband intercommunication terminal or command centre's arrowband intercommunication terminal are parsed after receiving information, Judge whether to call this node, preservation current talking communication link starts normally after if it is parsing node communications link information Communication, receive information.
- 2. intercommunication terminal multi-hop remote communication method in arrowband as claimed in claim 1, it is characterised in that the step S4, Comprise the following steps：Step S401, relay type arrowband intercommunication terminal are corresponding according to frame synchronization result and node signal strength table, renewal Channel quality table and link-quality table；Step S402, to receiving the node number in information compared with relay type system network nodes, parse without turn Hairdo arrowband intercommunication terminal；Step S403, according to parsing obtain without relay type arrowband intercommunication terminal, distribute slot table and corresponding frequency；Step S404, this nodal information is added in the data message to be forwarded received, for purpose relay type to be sent to Arrowband intercommunication terminal establishes communication link quality table and provides information；Step S405, according to time slot to without relay type arrowband intercommunication terminal be repeated in n times forwarding.
- 3. intercommunication terminal multi-hop remote communication method in arrowband as claimed in claim 1, it is characterised in that each network The frequency of group is different, and the relay type arrowband intercommunication terminal in each group when descending in a receive mode, using the first time slot The calling that frequency values receive the relay type arrowband intercommunication terminal from other groups is received, receiving frequency values reception using the second time slot comes from The calling that the common arrowband intercommunication terminal of this group is organized to other.
- 4. intercommunication terminal multi-hop remote communication method in arrowband as claimed in claim 1, it is characterised in that pass through the forwarding Formula arrowband intercommunication terminal, the common arrowband intercommunication terminal of this group and common the arrowband intercommunication terminal or command centre arrowband of other groups Intercommunication terminal is communicated.
- A kind of 5. arrowband intercommunication terminal multi-hop telecommunication system, it is characterised in that including：The intercommunication of multiple relay type arrowbands is whole End, multiple common arrowband intercommunication terminals and command centre's arrowband intercommunication terminal, wherein, multiple network groups are built, it is each described A relay type arrowband intercommunication terminal and multiple common arrowband intercommunication terminals are configured in network group, is matched somebody with somebody outside the network group Command centre's arrowband intercommunication terminal is put, wherein,Each common arrowband intercommunication terminal is used to be communicated with other common arrowband intercommunication terminals in this group, Yi Jitong Cross the relay type arrowband intercommunication terminal of this group and the common arrowband intercommunication terminal of other groups or command centre's arrowband intercommunication are whole End is communicated；Each relay type arrowband intercommunication terminal is used to forward the calling from command centre arrowband intercommunication terminal；Forwarding The calling of relay type arrowband intercommunication terminal from other groups；Common arrowband intercommunication terminal of the forwarding from this group is organized to other Calling, wherein, relay type arrowband intercommunication terminal upon receipt of the signals, detection signal intensity, and find frame synchronization letter Breath, update node signal strength table；To frame synchronization to data parsed and add this nodal information, judge whether to continue to turn It is dealt into other relay type arrowband intercommunication terminals and carries out multi-hop transmission, no person goes to the common arrowband intercommunication terminal of this group；The universal arrowband intercommunication terminal of this group receives the information parsing from relay type arrowband intercommunication terminal under receipts pattern Data simultaneously judge whether it is to call this node；If it is response confirmation transmission is carried out；This group of relay type arrowband intercommunication is whole End frequency point of time slot in group parses data after receiving the common arrowband intercommunication terminal calling of this group；The parsing data are forwarded by relay type arrowband intercommunication terminal, channel matter is selected according to the node signal strength table Best purpose frequency is measured, is forwarded to corresponding purpose relay type arrowband intercommunication terminal；It is whole according to the intercommunication of purpose relay type arrowband Termination receives whether information analysis judgment calls this group of end member, if being forwarded to according to frequency in group corresponding common narrow Band intercommunication terminal, otherwise needs to be forwarded to other relay type arrowband intercommunication terminals；The common arrowband intercommunication terminal or command centre's arrowband intercommunication terminal are parsed after receiving information, are judged whether This node is called, preservation current talking communication link starts proper communication after if it is parsing node communications link information, connects Collect mail and cease.
- 6. intercommunication terminal multi-hop telecommunication system in arrowband as claimed in claim 5, it is characterised in that the relay type is narrow Band intercommunication terminal updates corresponding channel quality table and link-quality table according to frame synchronization result and node signal strength table；It is right The node number in information is received compared with relay type system network nodes, parse without relay type arrowband intercommunication it is whole End；According to parsing obtain without relay type arrowband intercommunication terminal, distribute slot table and corresponding frequency；What is received This nodal information is added in data message to be forwarded, communication link is established for purpose relay type arrowband intercommunication terminal to be sent to Quality table provides information；According to time slot to without relay type arrowband intercommunication terminal be repeated in n times forwarding.
- 7. the arrowband intercommunication terminal multi-hop telecommunication system as described in claim 5 or 6, it is characterised in that the forwarding Formula arrowband intercommunication terminal includes：Signal strength detection module, demodulation and synchronization module, parsing node module, channel quality storage Forwarding module in table module, the outer multi-hop transmission module of group and group, wherein,The signal strength detection module is used to the signal received detect to judge whether signal is useful signal；The demodulation is demodulated for demodulating algorithm with synchronization module and synchronized using waveform algorithm is slided；The parsing Node module is used for it is determined that being parsed after in synchronization to the data after demodulation；The channel quality storage table module is used for storing and resolving nodal information, and judgement is to be forwarded to other common arrowbands in this group Intercommunication terminal is still forwarded to the outer terminal of group；Forwarding module is intended for other arrowband intercommunication terminals in this group for parsing information by demodulation result in described group, turns Issuing the information in this group is forwarded by this group of channel frequency；Described group of outer multi-hop transmission module is forwarded to other groups for that will demodulate information by multifrequency point.
- 8. intercommunication terminal multi-hop telecommunication system in arrowband as claimed in claim 5, it is characterised in that each network The frequency of group is different, and the relay type arrowband intercommunication terminal in each group when descending in a receive mode, using the first time slot The calling that frequency values receive the relay type arrowband intercommunication terminal from other groups is received, receiving frequency values reception using the second time slot comes from The calling that the common arrowband intercommunication terminal of this group is organized to other.
- 9. intercommunication terminal multi-hop telecommunication system in arrowband as claimed in claim 5, it is characterised in that the relay type is narrow Under band intercommunication terminal is given tacit consent in a receive mode, changed when receiving and needing forward signal to emission mode.
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