CN103546892B - A kind of data transmission method, Apparatus and system - Google Patents
A kind of data transmission method, Apparatus and system Download PDFInfo
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- CN103546892B CN103546892B CN201210363715.4A CN201210363715A CN103546892B CN 103546892 B CN103546892 B CN 103546892B CN 201210363715 A CN201210363715 A CN 201210363715A CN 103546892 B CN103546892 B CN 103546892B
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Abstract
The embodiment of the invention discloses a kind of data transmission method, Apparatus and system, for improving the efficiency of the integrity of low performance network node processor protection transmission data.The method comprise the steps that sending node determines transmission frequency in predetermined transmission frequency group, and send Frame according to described transmission frequency to receiving point, described Frame comprises multiple lead code, total duration that sends of the plurality of lead code intercepts duration more than the frequency sweep of described receiving node, receives the return information that described receiving node sends.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of data transmission method, Apparatus and system.
Background technology
Data integrity refers to accuracy and the reliability of data, and the data integrity required for wireless data transmission,
It is to prevent the invalid operation caused because of the transmission of error message or error message from proposing.So, integrity of data transmission
Forfeiture mean that the thing that there occurs loss of transmitted data or be changed.To this end, check and cause data integrity to be destroyed
Reason, in order to use suitable method to be solved, be improve data integrity necessary means.The biography of wireless communications environment
Transmission of data integrity is divided into three aspects, and (1) carries out complete preservation to all data in connecting；(2) to without the institute in connecting
Data are had to carry out integrity protection；(3) to specifying region to carry out integrity protection.
In prior art, the resist technology to wireless data transmission integrity, how with wirelessly transmitting data integrity detection
Means realize it.Typical integrity detection technology is message authentication code, and it is by the message hash function by band key
Produce a message integrity code, and be attached to transmission after message.Recipient will recalculate after receiving message and disappear
Breath integrity code is also haggled over the message integrity code received, if correct, illustrates to transmit message error-free, on the contrary then table
Show that message is tampered in transmitting procedure.Another usual way is to first pass through hash function to generate message Hash Value, then
Utilizing AES and privacy key to be encrypted by Hash Value, and send together with message, recipient recalculates miscellaneous
Gathering value, and compare with the Hash Value decrypted, if not etc. not representing that message transmitting procedure is tampered, otherwise message is just being transmitted
Often.
But in above prior art, because Encrypt and Decrypt operation is required for the mathematical calculation of complexity, in information acquisition system
Network node processor function and system resource require the highest, and cause low performance network node processor cannot complete nothing
The protection of line data transfer integrity.
Summary of the invention
Embodiments provide a kind of data transmission method, Apparatus and system, in order to by receiving node and transmission
Node both sides synchronize so that only rely on by means of simple cycle scan mode, just can improve the protection transmission of low performance network node processor
The efficiency of the integrity of data.
The data transmission method that the embodiment of the present invention provides, including: sending node determines in predetermined transmission frequency group
Transmission frequency, and send Frame according to described transmission frequency to receiving point, described Frame comprises multiple lead code, described
Total duration that sends of multiple lead codes intercepts duration more than the frequency sweep of described receiving node；Receive returning of described receiving node transmission
Complex information.
The data transmission method that the embodiment of the present invention provides, including: receiving node is according in predetermined transmission frequency group
Each transmission frequency, frequency sweep intercepts the Frame that described sending node sends；When listening to the Frame that described sending node sends
Time, send back complex information to described sending node.
The data transmission device that the embodiment of the present invention provides, comprises determining that unit, in predetermined transmission frequency group
Determine transmission frequency；Transmitting element, for sending Frame according to described transmission frequency to receiving point, comprises in described Frame
Multiple lead codes, total duration that sends of the plurality of lead code intercepts duration more than the frequency sweep of described receiving node；Receive unit,
For receiving the return information that described receiving node sends.
The data transmission device that the embodiment of the present invention provides, including: scanning element, for according to predetermined transmission frequency group
In each transmission frequency, frequency sweep intercept described sending node send Frame；Send information unit, for described when listening to
During the Frame that sending node sends, send back complex information to described sending node.
The data transmission system that the embodiment of the present invention provides, including: sending node, receiving node；Described sending node, uses
In determining transmission frequency in predetermined transmission frequency group, send Frame, described number according to described transmission frequency to receiving point
According to frame comprises multiple lead code, when the total duration of transmission of the plurality of lead code is intercepted more than the frequency sweep of described receiving node
Long, receive the return information that described receiving node sends；Described reception unit includes, for according in predetermined transmission frequency group
Each transmission frequency, frequency sweep intercept described sending node send Frame, when listen to described sending node send data
During frame, send back complex information to described sending node.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that sending node is in predetermined transmission
Group of frequencies determines transmission frequency, and sends Frame according to described transmission frequency to receiving point, comprise multiple in a data frame
Lead code, total duration that sends of the plurality of lead code intercepts duration more than the frequency sweep of receiving node so that receiving node is inevitable
The Frame that sending node is sent can be listened to, thus keep consistent, to improve transmission with this sending node operating frequency
The integrity of the transmission data that node sends to receiving node, simultaneously as the concrete side do not intercepted by the frequency sweep of receiving node
The impact of formula, so, network node processor function and system resource are required the lowest height, at low performance network node processor
In can improve the efficiency of integrity of protection data transmission.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those skilled in the art, on the premise of not paying creative work, it is also possible to root
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is that receiving node carries out frequency sweep required function modular structure schematic diagram；
Fig. 2 is an embodiment schematic diagram of the data transmission method in the embodiment of the present invention；
Fig. 3 is that the total duration of lead code that sending node sends covers the scanning of receiving node and intercepts the schematic diagram of duration；
Fig. 4 is another embodiment schematic diagram of the data transmission method in the embodiment of the present invention；
Fig. 5 is another embodiment schematic diagram of the data transmission method in the embodiment of the present invention；
Fig. 6 is the further embodiment schematic diagram of the data transmission method in the embodiment of the present invention；
Fig. 7 is an embodiment schematic diagram of the data transmission device in the embodiment of the present invention；
Fig. 8 is another embodiment schematic diagram of the data transmission device in the embodiment of the present invention；
Fig. 9 is another embodiment schematic diagram of the data transmission device in the embodiment of the present invention；
Figure 10 is the further embodiment schematic diagram of the data transmission device in the embodiment of the present invention；
Figure 11 is an embodiment schematic diagram of the data transmission system in the embodiment of the present invention.
Detailed description of the invention
The technical scheme of the embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings, it is clear that described with specific embodiment
Embodiment be only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that field technique personnel are obtained under not making creative work premise, broadly falls into present invention protection
Scope.
Embodiments provide a kind of data transmission method, Apparatus and system, be used for improving low performance network node
The efficiency of the integrity of processor protection transmission data.
In a wireless communication environment, on the impact of integrity of data transmission the most following aspects: receiving node and
The time irreversibility of sending node both sides；There is communication frequency difference in receiving node and sending node both sides；Receiving node and send out
Send the co-channel interference that node both sides are transmitted by other network node data.
For the above-mentioned problem affecting integrity of data transmission, the embodiment of the present invention sets up data transmission in receiving node side
The scan mechanism of frequency.The group of frequencies that receiving node provides according to network management center carries out Initialize installation, then according to this frequency
Group predeterminated frequency carries out frequency sweep at a slow speed, and this frequency sweeping method has fabulous effect to the Security Data Transmission of low-speed wireless communication network
Really, specifically, receiving node carries out frequency sweep required function modular structure as it is shown in figure 1, include: network node, frescan and frequency
Rate groove.
Specifically, all-network node all arranges frequency slots, is prefixed in system all for data biography in this frequency slots
Defeated transmission frequency, and by transmission bandwidth, all transmission frequencies are divided into multiple transmission frequency group, each transmission frequency group
There is unique identity (ID, an IDentity) authentication code.After the transmission frequency group of certain network node is set by network management center,
The frescan of this network node will be transmitted the scan round of frequency by the group of frequencies set.If transmission frequency is n, each
Transmission frequency group includes m transmission frequency, then number k=n/m of transmission frequency group, if there being remainder, puts into last transmitting pin
Rate group, n, m, k are positive integer.After the transmission frequency of each network node sets, this network node can only use k determined
In transmission frequency group, a transmission frequency group carries out data transmission.During it should be understood that communicate between network node, send out
Node and receiving node is sent all to use identical transmission frequency group to carry out data transmission.
As a example by the present invention following embodiment information acquisition system network under wireless communications environment, in view of this calculating mould
The versatility of type, various embodiments of the present invention can further expand to all information gathering network systems or other self-organizing network neck
Territory.
Referring to Fig. 1, an embodiment of the data transmission method in the embodiment of the present invention includes:
101, sending node determines transmission frequency in predetermined transmission frequency group, and according to described transmission frequency to reception
Point send Frame, described Frame comprises multiple lead code, the total duration of transmission of the plurality of lead code be more than described in connect
The frequency sweep receiving node intercepts duration；
Due to the sending node in network and receiving node, to be likely to occur operating frequency in an initial condition inconsistent, causes
Double transmission frequencies are likely to occur frequency with the asynchrony phenomenon jumped, the integrity of impact transmission data.
In the embodiment of the present invention, sending node determine in predetermined transmission frequency group a frequency as transmission frequency,
And send Frame according to this transmission frequency to receiving point, and this Frame adds multiple lead code, lead code is used for notifying
Receiving node receiving data frames.Sending node sends total duration covering receiving node maximum frequency sweep of lead code and intercepts duration, with
Solve the imperfection problem of data transmission, and the concrete mode owing to not intercepted by the frequency sweep of receiving node is affected, so,
Network node processor function and system resource are required the lowest height, protection number can be improved in low performance network node processor
Efficiency according to the integrity of transmission.
Specifically, when the lead code of sending node transmission is total, long hair intercepts duration more than the frequency sweep of receiving node, wherein, sends out
The lead code quantity of a length of transmission when sending lead code total and the product at the transmission interval of each lead code, the frequency sweep duration of receiving node
For this receiving node in default transmission frequency group, being taken by the whole process of frequency scanning interception data frame according to each transmission frequency
Between, then, even if when sending node and receiving node are under worst synchronous situation, it is also possible to solve sending node and receive joint
The Frequency Synchronization problem of some both sides.As it is shown on figure 3, such as, each transmission frequency group includes m transmission frequency, then receive joint
The scanning of point is a length of when intercepting to be started scanning from first frequency and intercepts, and scanning always listens to duration needed for m frequency, and sends
The total duration of lead code that node sends can cover this scanning and intercept duration.
102, the return information that described receiving node sends is received.
Receive the return information that this receiving node sends, the number that this return information sends to sending node for feedback reception
According to frame.
In the embodiment of the present invention, sending node determines transmission frequency in predetermined transmission frequency group, and according to described biography
Defeated frequency sends Frame to receiving point, comprises multiple lead code in a data frame, the total duration of transmission of the plurality of lead code
Duration is intercepted so that receiving node necessarily can listen to the Frame that sending node is sent more than the frequency sweep of receiving node,
Thus keep consistent with this sending node operating frequency, to improve the complete of transmission data that sending node sends to receiving node
Property, simultaneously as the concrete mode do not intercepted by the frequency sweep of receiving node is affected, so, to network node processor function
And system resource requires the lowest height, low performance network node processor can improve the effect of the integrity of protection data transmission
Rate.
For ease of understanding, describe the data transmission method in the embodiment of the present invention in detail with another embodiment below, please join
Readding Fig. 4, another embodiment of the data transmission method in the embodiment of the present invention includes:
201, sending node selects the transmission channel that data transmission quality is best, sends Frame as to receiving node
Transmission channel, and the information of described transmission channel is sent to described receiving node；
In the network structure of distributed frame layout, and work in the all-network node under communication non-
It is in intercepting state under emission state, so will be in the node layout of this distributed network, it is achieved the number between node
During according to transmission, it is necessary to create the data transmission channel of a good communication quality, this transmission channel after data transmission procedure terminates
It is automatically switched off or disappears.
Sending node selects the transmission channel that signal transmission quality is best, signal disturbing is minimum, sends out as to receiving node
Send the transmission channel of Frame, and the relevant information of this transmission channel is sent to this receiving node, to notify this receiving node
According to the transmission channel group receiving data frames selected, the process of the transmission channel that sending node selection signal transmission quality is best can
Being completed by prior art, selection mode is not especially limited.
202, in predetermined transmission frequency group, determine transmission frequency, and send number according to described transmission frequency to receiving point
According to frame, comprising multiple lead code in described Frame, total duration that sends of the plurality of lead code is more than described receiving node
Frequency sweep intercepts duration；
Due to the sending node in network and receiving node, to be likely to occur operating frequency in an initial condition inconsistent, causes
Double transmission frequencies are likely to occur frequency with the asynchrony phenomenon jumped, the integrity of impact transmission data.
In the embodiment of the present invention, sending node determines that in predetermined transmission frequency group a transmission frequency is as transmitting pin
Rate, sends Frame to receiving point, adds multiple lead code in this Frame, and lead code is used for notifying that receiving node receives number
According to frame.Sending node sends total duration covering receiving node maximum frequency sweep of lead code and intercepts duration, to solve data transmission
Imperfection problem, and the concrete mode owing to not intercepted by the frequency sweep of receiving node affected, so, network node is processed
Device function and system resource require the lowest height, can improve the integrity of protection data transmission in low performance network node processor
Efficiency.
Specifically, when the lead code of sending node transmission is total, long hair intercepts duration more than the frequency sweep of receiving node, wherein, sends out
The lead code quantity of a length of transmission when sending lead code total and the product at the transmission interval of each lead code, the frequency sweep duration of receiving node
For this receiving node in default transmission frequency group, being taken by the whole process of frequency scanning interception data frame according to each transmission frequency
Between, then, even if when sending node and receiving node are under worst synchronous situation, it is also possible to solve sending node and receive joint
The Frequency Synchronization problem of some both sides.As it is shown on figure 3, such as, each transmission frequency group includes m transmission frequency, then receive joint
The scanning of point is a length of when intercepting to be started scanning from first frequency and intercepts, and scanning always listens to duration needed for m frequency, and sends
The total duration of lead code that node sends can cover this scanning and intercept duration.
If 203 preset time period not receiving the return information that described receiving node sends, then at described predetermined transmitting pin
Rate group reselects transmission frequency, and again sends to described receiving node according to the described transmission frequency reselected described
Frame；
According to system practical situations, a preset duration waiting receiving node return information in sending node side,
Sending node judges whether receive the return information that described receiving node sends in preset time period, this return information is used for replying
The Frame that sending node sends.
Further, if in preset time period, sending node does not receives the return information that this receiving node sends, then exist
Described predetermined transmission frequency group determines a transmission frequency again, and according to the transmission frequency again determined again to this reception
Node sends described Frame.
If in preset length, sending node does not receives the return information that this receiving node sends, then show in this transmission
May be interfered in frequency and make data transmission fails or receive data failure, therefore, redefine transmission frequency again
Transmit described Frame, specifically, predetermined transmission frequency group redefines a transmission frequency, according to redefine
Transmission frequency resends the Frame of bust this or reception failure.
It should be noted that sending node resends the number of times of the Frame of bust this or reception failure, with predetermined
Transmission frequency group bandwidth or system application relevant, such as, resending Frame number of times is 3 times, does not the most make concrete
Limit.
If 204 preset time period do not receive the return information that described receiving node sends, then change the biography of described Frame
Defeated path, and according to Frame described in the transmission path after change；
If after the transmission frequency redefined, again send institute to this receiving node according to this transmission frequency redefined
After stating Frame, preset time period does not receives return information that this receiving node sends yet, be then considered as such data frame transfer and lose
Lose, change the transmission path of this Frame, and according to this Frame of transmission path after change.
Specifically, the replacing being carried out data transmission path by the support of the Routing Protocol of network management center is processed, change
The transmission path of Frame enters Routing Protocol from medium access control (MAC, Medium Access Control) protocol layer
Layer, changes the transmission path of described Frame in Routing Protocol layer, and returns MAC protocol layer.Originally should be come by MAC protocol layer
Realize integrity of data transmission computational methods, the amendment to transmission path of the Routing Protocol layer on its upper strata will be returned to, the most again
Back within MAC protocol layer to continue to send described Frame, by the seamless fusion of routing layer Yu MAC layer, make network node
Integrity of data transmission between be improved.
It should be noted that Frame can be changed immediately after gravity treatment transmission frequency sends Frame failure again
Transmission path, it is also possible to after continuous several times gravity treatment transmission frequency sends the failure of Frame number of times, then change Frame
Transmission path, is not construed as limiting herein, and transmission times can be by system intialization the most again.
205, the return information that described receiving node sends is received.
In the embodiment of the present invention, first sending node selects the transmission channel that signal transmission quality is best, as to reception
Node sends the transmission channel of Frame, and notifies receiving node, improves the success rate of data transmission, integrity, predetermined
Transmission frequency group determines transmission frequency, and sends Frame according to described transmission frequency to receiving point, comprise in a data frame
Multiple lead codes, total duration that sends of the plurality of lead code intercepts duration more than the frequency sweep of receiving node so that receiving node
Necessarily can listen to the Frame that sending node is sent, thus keep consistent with this sending node operating frequency, improve and send out
Send the integrity of the transmission data that node sends to receiving node, simultaneously as not by the frequency sweep of receiving node intercept concrete
The impact of mode, so, network node processor function and system resource are required the highest, processes at low performance network node
Device can improve the efficiency of the integrity of protection data transmission, if data send unsuccessfully, then redefine transmission frequency and again send out
Send, if again sending failure, then the transmission path of the sent Frame of change, and according to the transmission path after change again
Send this Frame, to improve the integrity of data transmission.
It is above the data transmission method the embodiment of the present invention described from sending node side, below from receiving node side
Describe the data transmission method in the embodiment of the present invention, refer to Fig. 5, the data transmission method in the embodiment of the present invention another
Individual embodiment includes:
301, receiving node is intercepted described sending node send out according to each transmission frequency in predetermined transmission frequency group, frequency sweep
The Frame sent；
It is inconsistent that sending node in network and receiving node are likely to occur operating frequency in an initial condition, and affects biography
The integrity of transmission of data, so, first have to solve to receive the problem that both sides' operating frequency is inconsistent.Owing to sending node sends number
According to the transmission frequency of frame, it is the frequency determined in predetermined transmission frequency group, so, for ensureing sending node and reception
Node operating frequency is consistent, and receiving node then according to each transmission frequency in predetermined transmission frequency group, intercepts this by frequency frequency sweep
The Frame that sending node sends, worst situation is from the beginning of predetermined transmission frequency group first frequency, and scanning listens to
Latter frequency, just listens to the Frame that sending node sends.
In the embodiment of the present invention, receiving node frequency sweep is intercepted the Frame of sending node transmission and is provided without complicated frequency hopping calculation
Method, and use simple cycle sweep method, allow for network node resource and computing capability is limited, the frequency hopping mathematics meter of its complexity
Calculation behavior can not play the oepration at full load effect of network node.
302, when listening to the Frame that described sending node sends, complex information is sent back to described sending node.
When receiving node listens to the Frame that this sending node sends, send back complex information to this sending node, with
Notify that this sending node has been received by this Frame, may determine that consistent with sending node operating frequency simultaneously.
In the embodiment of the present invention, receiving node intercepts institute according to each transmission frequency in predetermined transmission frequency group, frequency sweep
State the Frame that sending node sends, when listening to the Frame that described sending node sends, send to described sending node
Return information, notifies that this sending node has been received by this Frame, may determine that consistent with sending node operating frequency simultaneously, reach
After Tong Bu with sending node operating frequency, improving the integrity receiving and sending data, the mode intercepted due to frequency sweep is relatively simple,
So, network node processor function and system resource are required the lowest, guarantor can be improved in low performance network node processor
Protect the efficiency of the integrity of data transmission.
The data transmission method being described below in detail in the embodiment of the present invention, refers to Fig. 6, the number in the embodiment of the present invention
Include according to the further embodiment of transmission method:
401, receiving node receives the information of the transmission channel that sending node sends；
In the network structure of distributed frame layout, and work in the all-network node under communication non-
It is in intercepting state under emission state, so will be in the node layout of this distributed network, it is achieved the number between node
During according to transmission, it is necessary to create the data transmission channel of a good communication quality, this transmission channel after data transmission procedure terminates
It is automatically switched off or disappears.
Receiving node receives the information of the transmission channel that sending node sends.
402, in described transmission channel, the Frame that described sending node sends is intercepted in scanning；
Receiving node scans in this transmission channel intercepts the Frame that described sending node sends.
403, receiving node is intercepted described sending node send out according to each transmission frequency in predetermined transmission frequency group, frequency sweep
The Frame sent；
It is inconsistent that sending node in network and receiving node are likely to occur operating frequency in an initial condition, and affects
The integrity of transmission data, so, first have to solve to receive the problem that both sides' operating frequency is inconsistent.Owing to sending node sends
The transmission frequency of Frame, is the frequency determined in predetermined transmission frequency group, so, for ensureing sending node and connecing
Receiving node operating frequency consistent, receiving node then according to each transmission frequency in predetermined transmission frequency group, is intercepted by frequency frequency sweep
The Frame that this sending node sends, worst situation is that scanning listens to from the beginning of predetermined transmission frequency group first frequency
Last frequency, just listens to the Frame that sending node sends.
In the present embodiment, receiving node frequency sweep is intercepted the Frame of sending node transmission and is provided without complicated hop algorithm,
And use simple cycle sweep method, and allow for network node resource and computing capability is limited, the frequency hopping mathematical calculation of its complexity
Behavior can not play the oepration at full load effect of network node.
404, when listening to the Frame that described sending node sends, complex information is sent back to described sending node.
When receiving node listens to the Frame that this sending node sends, send back complex information to this sending node, with
Notify that this sending node has been received by this Frame.
In the embodiment of the present invention, receiving node receives the transmitting channel information that sending node selects, at described transmission channel
The Frame that described sending node sends is intercepted in middle scanning, improves the success rate of data transmission, integrity.Receiving node is according in advance
The fixed each transmission frequency in transmission frequency group, frequency sweep is intercepted the Frame that described sending node sends, is reached and sending node
After operating frequency synchronizes, improving the integrity receiving and sending data, the mode intercepted due to frequency sweep is relatively simple, so, to net
Network modal processor function and system resource require the lowest, can improve protection data transmission in low performance network node processor
The efficiency of integrity.
Describing the data transmission device in the embodiment of the present invention below, refer to Fig. 7, the data in the embodiment of the present invention pass
One embodiment of defeated device includes:
Determine unit 701, for determining transmission frequency in predetermined transmission frequency group；
Transmitting element 702, is used for according to determining that the described transmission frequency that unit 701 determines sends a Frame to receiving point,
Comprising multiple lead code in described Frame, total duration that sends of the plurality of lead code is detectd more than the frequency sweep of described receiving node
Listen duration；
Receive unit 703, for receiving the return information that described receiving node sends.
In the embodiment of the present invention, each unit of data transmission device realizes the process of respective function, refers to earlier figures 2 institute
Showing the detailed content described in embodiment, here is omitted.
In the embodiment of the present invention, determine that unit 701 determines transmission frequency, transmitting element in predetermined transmission frequency group
702 according to determining that described transmission frequency that unit 701 determines sends a Frame to receiving point, described Frame comprises multiple before
Leading code, total duration that sends of the plurality of lead code is intercepted duration more than the frequency sweep of described receiving node, is received unit 703 and receive
The return information that described receiving node sends, total duration that sends of the plurality of lead code is detectd more than the frequency sweep of described receiving node
Listen duration so that receiving node necessarily can listen to the Frame that sending node is sent, thus works with this sending node
Frequency keeps consistent, to improve the integrity of the transmission data that sending node sends to receiving node, simultaneously as do not received
The impact of the concrete mode that the frequency sweep of node is intercepted, so, network node processor function and system resource are required the lowest height,
The efficiency of the integrity of protection data transmission can be improved in low performance network node processor.
For ease of understanding, referring to Fig. 8, another embodiment of the data transmission device in the embodiment of the present invention includes:
Determine unit 801, for determining transmission frequency in predetermined transmission frequency group；
Transmitting element 802, is used for according to determining that the described transmission frequency that unit 801 determines sends a Frame to receiving point,
Comprising multiple lead code in described Frame, total duration that sends of the plurality of lead code is detectd more than the frequency sweep of described receiving node
Listen duration；
Receive unit 803, for receiving the return information that described receiving node sends.
Further, it is determined that unit 801, if being additionally operable in preset time period not receive the reply letter that described receiving node sends
Breath, then redefine transmission frequency in described predetermined transmission frequency group；
Transmitting element 802, is additionally operable to again send institute to described receiving node according to the described transmission frequency redefined
State Frame.
It should be noted that described data transmission device can further include:
Changing unit 804, if not receiving the return information that described receiving node sends in preset time period, then changes institute
State the transmission path of Frame, and according to Frame described in the transmission path after change；
Changing unit 804, specifically for entering the transmission road changing described Frame in Routing Protocol floor from MAC protocol floor
Footpath, and return MAC protocol layer.
Further, it is determined that unit 801, it is additionally operable to the transmission channel selecting data transmission quality best, as to described
Receiving node sends the transmission channel of described Frame；
Transmitting element 802, is additionally operable to the information of described transmission channel is sent to described receiving node.
In the embodiment of the present invention, each unit of data transmission device realizes the process of respective function, refer to earlier figures 2 and
Detailed content described in embodiment illustrated in fig. 4, here is omitted.
Determine that unit 801 selects the best transmission channel of data transmission quality, described as sending to described receiving node
The transmission channel of Frame, the information of described transmission channel is sent to described receiving node, determines unit by transmitting element 802
801 determine transmission frequency in predetermined transmission frequency group, and transmitting element 802 is according to the transmission frequency determining that unit 801 determines
Sending Frame to receiving point, comprise multiple lead code in described Frame, the total duration of transmission of the plurality of lead code is more than
The frequency sweep of described receiving node intercepts duration, receives unit 803 and receives the return information that described receiving node sends.If time preset
Length does not receives the return information that described receiving node sends, determines unit 801 then weight in described predetermined transmission frequency group
Newly determined transmission frequency, transmitting element 802 sends institute to described receiving node again according to the described transmission frequency redefined
Stating Frame, if not receiving the return information that described receiving node sends in preset time period, then changing unit 804 changes described number
According to the transmission path of frame, and according to Frame described in the transmission path after change, specifically for entering road from MAC protocol floor
By protocol layer is changed the transmission path of described Frame, and return MAC protocol layer, wherein, the transmission of the plurality of lead code
Total duration intercepts duration more than the frequency sweep of described receiving node so that receiving node necessarily can listen to sending node and be sent
Frame, thus keep consistent with this sending node operating frequency, the raising transmission number that sends to receiving node of sending node
According to integrity, simultaneously as the concrete mode do not intercepted by the frequency sweep of receiving node is affected, so, at network node
Reason device function and system resource require the highest, can improve the complete of protection data transmission in low performance network node processor
Property efficiency, if data send unsuccessfully, then redefining transmission frequency sends again, if again sending failure, then change sent out
Send the transmission path of Frame, and again send this Frame according to the transmission path after change, to improve data transmission
Integrity.
Referring to Fig. 9, another embodiment of the data transmission device in the embodiment of the present invention includes:
Intercepting unit 901, for according to each transmission frequency in predetermined transmission frequency group, frequency sweep is intercepted described transmission and is saved
The Frame that point sends；
Send information unit 902, be used for when intercepting unit 901 and listening to the Frame that described sending node sends, to
Described sending node sends back complex information.
In the embodiment of the present invention, each unit of data transmission device realizes the process of respective function, refers to earlier figures 5 institute
Showing the detailed content described in embodiment, here is omitted.
In the embodiment of the present invention, intercepting unit 901 according to each transmission frequency in predetermined transmission frequency group, frequency sweep is intercepted
The Frame that described sending node sends, when intercepting unit 901 and listening to the Frame that described sending node sends, sends letter
Interest statement unit 902 sends back complex information to described sending node, notifies that this sending node has been received by this Frame, may determine that simultaneously
Consistent with sending node operating frequency, reach Tong Bu with sending node operating frequency after, improve receive and send data complete
Property, the mode intercepted due to frequency sweep is relatively simple, so, network node processor function and system resource are required the lowest, low
Performance network modal processor can improve the efficiency of the integrity of protection data transmission.
Referring to Figure 10, the further embodiment of the data transmission device in the embodiment of the present invention includes:
Intercepting unit 1001, for according to each transmission frequency in predetermined transmission frequency group, frequency sweep intercepts described transmission
The Frame that node sends；
Send information unit 1002, be used for when intercepting unit 1001 and listening to the Frame that described sending node sends,
Complex information is sent back to described sending node.
It should be noted that the data transmission device in the embodiment of the present invention can further include:
Receive information unit 1003, be additionally operable to receive the information of the transmission channel that described sending node sends；
Described intercept unit 1001, be additionally operable in described transmission channel scanning and intercept the data that described sending node sends
Frame.
In the embodiment of the present invention, each unit of data transmission device realizes the process of respective function, refers to earlier figures 5 He
Detailed content described in embodiment illustrated in fig. 6, here is omitted.
In the embodiment of the present invention, receive information unit 1003 and receive the information of the transmission channel that described sending node sends,
Intercept unit 1001 and in described transmission channel, scan the Frame intercepting the transmission of described sending node, in described transmission channel
Scanning intercept described sending node send Frame, improve data transmission success rate, integrity, intercept unit 1001 according to
The predetermined each transmission frequency in transmission frequency group, frequency sweep intercepts the Frame that described sending node sends, when intercepting unit
During the Frame that 1001 listen to the transmission of described sending node, send information unit 1002 and send back letter in reply to described sending node
Breath, reach Tong Bus with sending node operating frequency after, improve receive and transmission data integrity, the mode intercepted due to frequency sweep
Relatively simple, so, network node processor function and system resource are required the lowest, can in low performance network node processor
Improve the efficiency of the integrity of protection data transmission.
The embodiment of the present invention also describes a kind of data transmission system, refers to Figure 11, the data in the embodiment of the present invention
Transmission system includes:
Sending node 1101, receiving node 1102；
Described sending node 1101, for determining transmission frequency in predetermined transmission frequency group, determines list according to described
The described transmission frequency that unit determines sends a Frame to receiving point, comprises multiple lead code in described Frame, the plurality of before
Total duration that sends of leading code intercepts duration more than the frequency sweep of described receiving node, receives the reply letter that described receiving node sends
Breath；
Described receiving node 1102, for according to each transmission frequency in predetermined transmission frequency group, frequency sweep is intercepted described
Sending node send Frame, when described intercept unit listen to described sending node send Frame time, to described
Node is sent to send back complex information.
In the embodiment of the present invention, each unit of data transmission system realizes the process of respective function, refer to earlier figures 1 to
Detailed content described in embodiment illustrated in fig. 10, here is omitted.
It will be appreciated by those skilled in the art that all or part of step realizing in above-described embodiment method can be by
Program instructs relevant hardware and completes, and described program can be stored in a kind of computer-readable recording medium, above-mentioned carries
To storage medium can be read only memory, disk or CD etc..
Above a kind of data transmission method provided by the present invention, Apparatus and system are described in detail, for this
The technical staff in field, according to the thought of the embodiment of the present invention, the most all can change it
Place, in sum, this specification content should not be construed as limitation of the present invention.
Claims (14)
1. a data transmission method, it is characterised in that including:
Sending node determines transmission frequency in predetermined transmission frequency group, and sends to receiving node according to described transmission frequency
Frame, comprises multiple lead code in described Frame, the total duration of transmission of the plurality of lead code is more than described receiving node
Frequency sweep intercept duration；Described receiving node is according to each transmission frequency in predetermined transmission frequency group, and described sending out is intercepted in scanning
Send the Frame that node sends；
Receive the return information that described receiving node sends.
Method the most according to claim 1, it is characterised in that described sending node determines in predetermined transmission frequency group
Transmission frequency, and include after receiving node sends Frame according to described transmission frequency:
If preset time period does not receives the return information that described receiving node sends, then weight in described predetermined transmission frequency group
Newly determined transmission frequency, and again send described Frame to described receiving node according to the described transmission frequency redefined.
Method the most according to claim 2, it is characterised in that described according to the described transmission frequency redefined again to
Described receiving node includes after sending described Frame:
If preset time period does not receives the return information that described receiving node sends, then change the transmission path of described Frame,
And according to Frame described in the transmission path after change.
Method the most according to claim 3, it is characterised in that the transmission path of the described Frame of described change is specifically wrapped
Include:
Enter the transmission path changing described Frame Routing Protocol layer from MAC protocol layer, and return MAC protocol layer.
5. according to the method described in any one of Claims 1-4, it is characterised in that described sending node is at predetermined transmitting pin
The transmission frequency determined in rate group, and included before receiving node sends Frame according to described transmission frequency:
Select the transmission channel that data transmission quality is best, as the transmission letter sending described Frame to described receiving node
Road；
The information of described transmission channel is sent to described receiving node.
6. a data transmission method, it is characterised in that including:
Receiving node is according to each transmission frequency in predetermined transmission frequency group, and frequency sweep intercepts the Frame that sending node sends；
Comprising multiple lead code in described Frame, total duration that sends of the plurality of lead code is detectd more than the frequency sweep of described receiving node
Listen duration；Described sending node determines transmission frequency in predetermined transmission frequency group, and according to described transmission frequency to described
Receiving node sends Frame；
When listening to the Frame that described sending node sends, send back complex information to described sending node.
Method the most according to claim 6, it is characterised in that described receiving node is according in predetermined transmission frequency group
Each transmission frequency, frequency sweep includes before intercepting the Frame that described sending node sends:
Receive the information of the transmission channel that described sending node sends；
In described transmission channel, the Frame that described sending node sends is intercepted in scanning.
8. a data transmission device, it is characterised in that including:
Determine unit, for determining transmission frequency in predetermined transmission frequency group；
Transmitting element, for sending Frame according to the described described transmission frequency determining that unit determines to receiving node, described
Frame comprises multiple lead code, when the total duration of transmission of the plurality of lead code is intercepted more than the frequency sweep of described receiving node
Long；Described receiving node is intercepted described data transmission device send out according to each transmission frequency in predetermined transmission frequency group, scanning
The Frame sent；
Receive unit, for receiving the return information that described receiving node sends.
Device the most according to claim 8, it is characterised in that
Described determine unit, if being additionally operable in preset time period not receive the return information that described receiving node sends, then described
Predetermined transmission frequency group redefines transmission frequency；
Described transmitting element, is additionally operable to again send described number to described receiving node according to the described transmission frequency redefined
According to frame.
Device the most according to claim 8 or claim 9, it is characterised in that described device also includes:
Changing unit, if not receiving the return information that described receiving node sends in preset time period, then changes described data
The transmission path of frame, and according to Frame described in the transmission path after change；
Described changing unit, specifically for entering the transmission path changing described Frame in Routing Protocol layer from MAC protocol layer,
And return MAC protocol layer.
11. devices according to claim 10, it is characterised in that
Described determine unit, be additionally operable to the transmission channel selecting data transmission quality best, send as to described receiving node
The transmission channel of described Frame；
Described transmitting element, is additionally operable to the information of described transmission channel is sent to described receiving node.
12. 1 kinds of data transmission devices, it is characterised in that including:
Intercepting unit, for according to each transmission frequency in predetermined transmission frequency group, frequency sweep intercepts the number that sending node sends
According to frame；Comprising multiple lead code in described Frame, the total duration of transmission of the plurality of lead code intercepts duration more than frequency sweep；Institute
State sending node in predetermined transmission frequency group, determine transmission frequency, and according to described transmission frequency to described data transmission dress
Put transmission Frame；
Send information unit, for when intercepting unit and listening to the Frame that described sending node sends, send joint to described
Point sends back complex information.
13. devices according to claim 12, it is characterised in that
Described device also includes:
Receive information unit, be additionally operable to receive the information of the transmission channel that described sending node sends；
Described intercept unit, be additionally operable in described transmission channel scanning and intercept the Frame that described sending node sends.
14. 1 kinds of data transmission systems, it is characterised in that including:
Sending node, receiving node；
Described sending node, for determining transmission frequency, according to the described transmission frequency determined in predetermined transmission frequency group
Sending Frame to receiving node, comprise multiple lead code in described Frame, the transmission of the plurality of lead code is grown up time total
Frequency sweep in described receiving node intercepts duration, receives the return information that described receiving node sends；
Described receiving node, for according to each transmission frequency in predetermined transmission frequency group, frequency sweep intercepts described sending node
The Frame sent, when listening to the Frame that described sending node sends, sends back complex information to described sending node.
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| CN103916884A (en) * | 2014-03-04 | 2014-07-09 | 深圳市有方科技有限公司 | Method for multi-channel self-adaptation optimization communication in micro-power wireless network |
| CN104022849A (en) * | 2014-06-21 | 2014-09-03 | 宁波三星电气股份有限公司 | Multi-channel cooperative working method in micro-power wireless communication |
| CN112118588A (en) * | 2019-06-20 | 2020-12-22 | 无锡士康通讯技术有限公司 | Pilot frequency communication method for wireless network external terminal and wireless network internal equipment |
| CN112118077A (en) * | 2019-06-21 | 2020-12-22 | 华为技术有限公司 | Response frame sending method and receiving node |
| CN117615458B (en) * | 2024-01-22 | 2024-04-16 | 南京典格通信科技有限公司 | Multi-bandwidth frequency sweeping method of 5G ad hoc network system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1286505B1 (en) * | 2001-08-23 | 2005-03-30 | Samsung Electronics Co., Ltd. | Method for compensating for propagation delay in a point-to-multipoint data communication network |
| CN101449481A (en) * | 2006-05-22 | 2009-06-03 | 高通股份有限公司 | Signal acquisition in a wireless communication system |
| CN101730206A (en) * | 2008-11-03 | 2010-06-09 | 中国移动通信集团公司 | Mobile communication terminal and method for controlling same to receive downlink data |
| CN101742532A (en) * | 2008-11-14 | 2010-06-16 | 中国移动通信集团公司 | Control method for receiving downlink data by mobile communication terminal and mobile communication terminal |
| CN102025407A (en) * | 2009-09-09 | 2011-04-20 | 华为技术有限公司 | MBSFN (multicast broadcast single frequency network) transmission method, device and system |
Family Cites Families (1)
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-
2012
- 2012-09-26 CN CN201210363715.4A patent/CN103546892B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1286505B1 (en) * | 2001-08-23 | 2005-03-30 | Samsung Electronics Co., Ltd. | Method for compensating for propagation delay in a point-to-multipoint data communication network |
| CN101449481A (en) * | 2006-05-22 | 2009-06-03 | 高通股份有限公司 | Signal acquisition in a wireless communication system |
| CN101730206A (en) * | 2008-11-03 | 2010-06-09 | 中国移动通信集团公司 | Mobile communication terminal and method for controlling same to receive downlink data |
| CN101742532A (en) * | 2008-11-14 | 2010-06-16 | 中国移动通信集团公司 | Control method for receiving downlink data by mobile communication terminal and mobile communication terminal |
| CN102025407A (en) * | 2009-09-09 | 2011-04-20 | 华为技术有限公司 | MBSFN (multicast broadcast single frequency network) transmission method, device and system |
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