CN105393498B - A kind of signal transmission node, system and method - Google Patents
A kind of signal transmission node, system and method Download PDFInfo
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- CN105393498B CN105393498B CN201480036995.5A CN201480036995A CN105393498B CN 105393498 B CN105393498 B CN 105393498B CN 201480036995 A CN201480036995 A CN 201480036995A CN 105393498 B CN105393498 B CN 105393498B
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Abstract
一种信号传输节点、系统及方法，方法包括：信号接收单元，信号判断单元，信号再生单元，信号合成单元，信号发送单元；所述信号接收单元用于接收非本地的信号传输节点发送的待定信号；所述信号判断单元对所述待定信号进行信号类型的判定，若所述待定信号为本源信号，则所述信号合成单元将所述本源信号以及所述本源信号对应的非本源信号进行信号合成，若所述待定信号为非本源信号，则所述信号合成单元将所述非本源信号以及所述非本源信号对应的本源信号进行信号合成，若所述待定信号为干扰信号，则所述信号再生单元对所述干扰信号进行信号放大，再由所述信号发送单元将所述信号放大后的干扰信号发送给所述干扰信号对应的目的节点。
A signal transmission node, system and method, the method comprising: a signal receiving unit, a signal judging unit, a signal regeneration unit, a signal synthesis unit, and a signal sending unit; the signal receiving unit is used to receive pending signals sent by non-local signal transmission nodes signal; the signal judging unit determines the signal type of the undetermined signal, and if the undetermined signal is an original source signal, the signal synthesis unit performs signal processing on the original source signal and the non-indigenous signal corresponding to the original source signal Combining, if the signal to be determined is a non-source signal, the signal synthesis unit performs signal synthesis on the source signal corresponding to the non-source signal and the source signal corresponding to the non-source signal, and if the signal to be determined is an interference signal, the The signal regeneration unit performs signal amplification on the interference signal, and then the signal sending unit sends the amplified interference signal to a destination node corresponding to the interference signal.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of signal transmission nodes, system and method.
Background technique
Data center is a whole set of complicated facility.It not only includes computer system and other matched equipment
(such as communication and storage system) also includes data communication connection, environmental control equipment, monitoring device and the various peaces of redundancy
Full device.Wherein, include multiple servers, and have the demand being in communication with each other between these servers.
In the prior art, it is in communication with each other in order to make to be able to carry out between these servers, these services can carried
Transceiver and directional aerial, the radio signal propagation being planarized according to antenna propagation direction are disposed on the cabinet of device.
Since the distance between cabinet and cabinet are relatively close, mutual signal interference is very serious.
For the Communication Jamming between cabinet and cabinet, University of California at Santa Barbara passes through ceiling reflection
Wireless signal is to purpose cabinet, although disturbance range, antenna alignment reflecting mirror can be effectively reduced in this 3D Wave beam forming scheme
Delay is increased, and reflecting mirror number is limited, multi wireless links simultaneously interfere in the case of depositing still serious.
Summary of the invention
The embodiment of the invention provides a kind of signal transmission nodes, system and method, for solving between different links, nothing
The interference problem of line signal.
The signal transmission node that first aspect of the embodiment of the present invention provides, comprising:
Signal receiving unit, signal judging unit, signal regeneration unit, signal synthesis unit, signal transmitting unit；
The signal receiving unit is used to receive the pending signal that signal transmission node non-indigenous is sent；
The signal judging unit carries out the judgement of signal type to the pending signal, and the signal type includes: this
Source signal, non-source signal and interference signal；Described source signal is the signal that source node is sent to destination node, described non-
This source signal is the signal that non-source node is sent to destination node, and the interference signal is the signal that non-destination node receives；
If the pending signal is this source signal, the signal synthesis unit is by described source signal and the origin
The corresponding non-source signal of signal carries out signal synthesis, obtains signal required for local signal transmission node；
If the pending signal is non-source signal, the signal synthesis unit is by the non-source signal and described
Corresponding source signal of non-source signal carries out signal synthesis, obtains signal required for local signal transmission node；
If the pending signal is interference signal, the signal regeneration unit carries out signal to the interference signal and puts
Greatly, then by the signal transmitting unit by the amplified interference signal of the signal it is sent to the corresponding purpose of the interference signal
Node.
In the first method in the cards of first aspect, the signal judging unit includes:
Power estimation module, for carrying out power inspection to the pending signal；
Signal decision module, for according to the result of the power inspection and the judgement of corresponding power threshold it is described to
Whether the destination node for determining signal is local signal transmission node, if so, the pending signal is this source signal or non-
Source signal, if it is not, then the pending signal is interference signal.
With reference to first aspect the first method in the cards, in second of method in the cards, the signal
Judging unit includes:
Channel estimation module, for carrying out channel estimation to the pending signal；
The signal decision module is also used to according to the result of the channel estimation and the power inspection as a result, true
The fixed pending signal is this source signal or non-source signal.
With reference to first aspect and first and two any one methods in the cards of first aspect, the third can
In the method being able to achieve, the signal synthesis unit includes:
Phase adjusting module, for the non-source signal carry out phase adjustment so that the non-source signal and its
Corresponding source signal is in same phase.
It with reference to first aspect and first and three any one methods in the cards of first aspect, can at the 4th kind
In the method being able to achieve, the signal transmitting unit also carries out signal transmission with by wide lobe signal.
The signal transmission system that second aspect provides in the embodiment of the present invention, comprising:
Source node, destination node, neighbors；
The source node be to the destination node send the first signal signal transmission node, the neighbors be positioned at
Signal transmission node near the destination node；
The destination node is used to receive second that the first signal that the source node is sent and the neighbors are sent
Signal determines that the signal type of first signal and the second signal is respectively this source signal and Fei Ben source signal, by institute
It states the first signal and the second signal carries out signal synthesis, obtain signal required for local signal transmission node；Institute
Stating signal type includes: this source signal, non-source signal and interference signal；Described source signal is source node to destination node
The signal of transmission, the non-source signal are the signal that non-source node is sent to destination node, and the interference signal is non-purpose
The signal that node receives；
The neighbors is used to receive the first signal that the source node is sent, and determines first signal for interference letter
Number, signal amplification is carried out to first signal, obtains second signal, sends the second signal to the destination node.
In conjunction with the first method in the cards of second aspect, determination first signal and the second signal
Signal type be respectively this source signal and Fei Ben source signal, comprising:
Using first signal as pending signal, power inspection is carried out to the pending signal, is examined according to the power
The result and corresponding power threshold looked into judge whether the destination node of the pending signal is local signal transmission section
Point, if so, the pending signal is this source signal or non-source signal, if it is not, then the pending signal is interference signal；It is right
The pending signal carries out channel estimation, if the result instruction of the channel estimation sends the node of the pending signal as source section
Point, then the pending signal is this source signal, if the node that the result instruction of the channel estimation sends the pending signal is
Non- source node, then the pending signal is non-source signal.
In conjunction with the first of second aspect or second aspect method in the cards, in second of method in the cards
In, it is described that first signal and the second signal are subjected to signal synthesis, it obtains needed for local signal transmission node
The signal wanted, comprising:
Phase adjustment is carried out to the second signal, so that the second signal is in same phase with first signal
Position, first signal identical to phase and the second signal carry out signal synthesis, obtain local signal transmission section
Signal required for point.
It is possible at the third in conjunction with second aspect or the first to two of second aspect any one method in the cards
In the method for realization, the source node, destination node and neighbors carry out signal transmission using wide lobe signal between any two.
The method for transmitting signals that the third aspect of the embodiment of the present invention provides, comprising:
Receive the pending signal that signal transmission node is sent；
The judgement of signal type is carried out to the pending signal, the signal type includes: this source signal, non-source signal
And interference signal；Described source signal is the signal that source node is sent to destination node, and the non-source signal is non-source section
The signal that point is sent to destination node, the interference signal are the signal that non-destination node receives；
If the pending signal is this source signal, by described source signal and the corresponding non-origin of described source signal
Signal carries out signal synthesis, obtains signal required for local signal transmission node；
If the pending signal is non-source signal, and the non-source signal and the non-source signal is corresponding
This source signal carries out signal synthesis, obtains signal required for local signal transmission node；
If the pending signal is interference signal, signal amplification is carried out to the interference signal, the signal is amplified
Interference signal afterwards is sent to the corresponding destination node of the interference signal.
It is described that pending signal progress signal type is sentenced in the first method in the cards of the third aspect
It is fixed, comprising:
Power inspection is carried out to the pending signal, according to the result and corresponding power threshold of the power inspection
Whether the destination node for judging the pending signal is local signal transmission node, if so, the pending signal is origin
Signal or non-source signal, if it is not, then the pending signal is interference signal.
It is described to institute in second of method in the cards in conjunction with the first method in the cards of the third aspect
State the judgement that pending signal carries out signal type, further includes:
Channel estimation is carried out to the pending signal；If the result instruction of the channel estimation sends the pending signal
Node is source node, and local signal transmission node is the destination node of the pending signal, then the pending signal is this
Source signal；If the result instruction of the channel estimation sends the node of the pending signal as non-source node, and local signal
Transmission node is the destination node of the pending signal, then the pending signal is non-source signal.
In conjunction with first and two any one methods in the cards of the third aspect and the third aspect, the third can
In the method being able to achieve, which is characterized in that
It is described that corresponding source signal of the non-source signal and the non-source signal is subjected to signal synthesis, it obtains
Signal required for local signal transmission node, comprising:
Phase adjustment is carried out to the non-source signal, so that described non-this corresponding source signal of source signal is in
Same phase, corresponding source signal of the non-source signal identical to phase and the non-source signal carry out signal conjunction
At obtaining signal required for local signal transmission node；
It is described that described source signal and the corresponding non-source signal of described source signal are subjected to signal synthesis, obtain this
Signal required for the signal transmission node on ground
Phase adjustment is carried out to the non-source signal, so that described non-this corresponding source signal of source signal is in
Same phase, described source signal identical to phase and the corresponding non-source signal of described source signal carry out signal conjunction
At obtaining signal required for local signal transmission node.
In conjunction with first and three any one methods in the cards of the third aspect and the third aspect, the third can
It is described that the amplified interference signal of the signal is sent to the corresponding purpose section of the interference signal in the method being able to achieve
Point, comprising:
The amplified interference signal of the signal is sent to the interference signal by the transmission mode of wide lobe signal
Corresponding destination node.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
In embodiments of the present invention, signal judging unit can carry out the judgement of signal type to pending signal, if described
Pending signal be this source signal or non-source signal, then signal synthesis unit can by described source signal or non-source signal,
Its corresponding non-source signal or this source signal carry out signal synthesis, obtain letter required for local signal transmission node
Number；If the pending signal be interference signal, the signal regeneration unit to the interference signal carry out signal amplification, then by
The amplified interference signal of the signal is sent to the corresponding destination node of the interference signal by the signal transmitting unit；From
And the interference problem of intensive wireless network is effectively reduced, and increase signal-to-noise ratio and bandwidth using interference, it also reduces to day
The requirement of the narrow lobe of line.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a structural schematic diagram of signal transmission node in the embodiment of the present invention；
Fig. 2 is a structural schematic diagram of signal transmission node in the embodiment of the present invention；
Fig. 3 is a structural schematic diagram of signal transmission system in the embodiment of the present invention；
Fig. 4 is a schematic layout pattern of signal transmission system in the embodiment of the present invention；
Fig. 5 is a flow diagram of method for transmitting signals in the embodiment of the present invention；
Fig. 6 is a flow diagram of method for transmitting signals in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, one embodiment of signal transmission node includes: in the embodiment of the present invention
Signal receiving unit 101, signal judging unit 102, signal regeneration unit 103, signal synthesis unit 104, signal
Transmission unit 105；
In practical applications, the signal transmission environment of the embodiment of the present invention includes at least three signal transmission nodes, respectively
For source node, destination node and neighbors；The source node is the signal transmission that the first signal is sent to the destination node
Node, the neighbors are the signal transmission node near the destination node, wherein neighbors can have multiple.
The signal receiving unit 101 is used to receive the pending signal that signal transmission node non-indigenous is sent.
Signal transmission node in embodiments of the present invention, both can be used as destination node or neighbors receives signal,
It can be used as source node and send signal, herein specifically without limitation.
The signal judging unit 102 carries out the judgement of signal type to the pending signal, and the signal type includes:
This source signal, non-source signal and interference signal；Described source signal is the signal that source node is sent to destination node, described
Non- source signal is the signal that non-source node is sent to destination node, and the interference signal is the letter that non-destination node receives
Number；
It is understood that this source signal, the differentiation of non-source signal and interference signal these types signal type, only phase
For the signal transmission node for also receiving signal, i.e., for the source node for sending signal, transmitted pending signal
For same signal.
If the pending signal is this source signal, the signal synthesis unit 104 is by described source signal and described
The corresponding non-source signal of this source signal carries out signal synthesis, obtains signal required for local signal transmission node；
If the pending signal is non-source signal, the signal synthesis unit 104 by the non-source signal and
Corresponding source signal of the non-source signal carries out signal synthesis, obtains signal required for local signal transmission node.
If the pending signal is interference signal, the signal regeneration unit 103 carries out signal to the interference signal
Amplification, then the amplified interference signal of the signal is sent to the interference signal by the signal transmitting unit 105 and is corresponded to
Destination node.
In the practical application of the embodiment of the present invention, destination node and neighbors can all receive the letter undetermined that source node is sent
Number, for the pending signal, it is considered as this source signal in destination node side, is considered as interference signal, neighbors in neighbors side
After receiving the interference signal, signal amplification can be carried out to it, then adjustment signal angle of radiation is transmitted to destination node；For mesh
Node for, by neighbors forward the amplified interference signal of signal, be non-source signal, and with identical purpose section
Described source signal of point is corresponding.
Therefore, if local signal transmission node has received this source signal, and the local signal transmission node
There are neighbors, then the local signal transmission node also will receive the corresponding with described source signal of the neighbors transmission
Non- source signal；Similarly, if local signal transmission node has received non-source signal, and the local signal passes
There is neighbors in defeated node, then the local signal transmission node also will receive believing with the non-origin for source node transmission again
Number corresponding non-source signal.
In practical applications, since neighbors is also required to the source node as other signal transmission nodes, also have solid
Fixed signal radiation angle；When neighbors is needed to destination node forward signal, need to fixed signal radiation angle into
Row adjustment, specifically, the angle of adjustment needs depending on the layout of each signal transmission node；Illustratively, if respectively
The layout of a signal transmission node is the neat symmetrical structure of dot matrix type, then the angle adjusted can be 90 degree, 180 degree or 270
Degree.
In embodiments of the present invention, local signal transmission node not only has received this source signal of source node transmission, also
Non- source signal for having received neighbors transmission, and synthesizes both signals, and available signal quality is better
Signal, from making in source node side, the reduction that the transmission power of signal is adapted to e.g. uses the wide wave of inexpensive low-frequency range
Valved signal carries out signal transmission.
In embodiments of the present invention, signal judging unit can carry out the judgement of signal type to pending signal, if described
Pending signal be this source signal or non-source signal, then signal synthesis unit can by described source signal or non-source signal,
Its corresponding non-source signal or this source signal carry out signal synthesis, obtain letter required for local signal transmission node
Number；If the pending signal be interference signal, the signal regeneration unit to the interference signal carry out signal amplification, then by
The amplified interference signal of the signal is sent to the corresponding destination node of the interference signal by the signal transmitting unit；From
And the interference problem of intensive wireless network is effectively reduced, and increase signal-to-noise ratio and bandwidth using interference, it also reduces to day
The requirement of the narrow lobe of line.
In practical applications, signal judging unit and signal synthesis unit may further include other modules with
Corresponding function is realized, referring to Fig. 2, another embodiment of signal transmission node includes: in the embodiment of the present invention
Signal receiving unit 101, signal judging unit 102, signal regeneration unit 103, signal synthesis unit 104, signal
Transmission unit 105；
Wherein, the signal judging unit 102 can further include: Power estimation module 1021, channel estimation mould
Block 1022 and signal decision module 1023；
Specifically, the Power estimation module 1021 is used to carry out power inspection to the pending signal；The signal is sentenced
Cover half block 1023 judges the purpose section of the pending signal according to the result and corresponding power threshold of the power inspection
Whether point is local signal transmission node, if so, the pending signal is this source signal or non-source signal, if it is not, then
The pending signal is interference signal.Illustratively, if the thresholding for the signal power that destination node receives be A dbm, then when
When the power of pending signal is greater than or equal to Adbm, the pending signal is this source signal or non-source signal, works as pending signal
Power be less than Adbm when, then the pending signal be interference signal.
Further, the channel estimation module 1022 is used to carry out channel estimation to the pending signal；Specifically, letter
The result of road estimation is the information of wireless channel, such as the order of channel, Doppler frequency shift and multidiameter delay or the impulse of channel
The parameters such as response.The signal decision module 1023 can be determined according to the information of the wireless channel, send the pending signal
Signal transmission node, therefore, in conjunction with the channel estimation result and the power inspection as a result, the signal determining
Module 1023 is assured that the pending signal is this source signal or non-source signal.
Wherein, the signal synthesis unit 104 may further include phase adjusting module 1041；
Specifically, the phase adjusting module 1041 is used to carry out phase adjustment to the non-source signal, so that described
Non- this corresponding source signal of source signal is in same phase.
It is in practical applications, different with the sending node of Fei Ben source signal due to this source signal, the phase of signal
Can be different, if simple merges this source signal and Fei Ben source signal, it may appear that the case where signal strength is offset, therefore,
It needs to carry out phase adjustment to non-source signal.
Further, since the signal transmission node of the embodiment of the present invention not only has received the origin letter of source node transmission
Number, non-source signal of neighbors transmission is also had received, and both signals are synthesized, available signal quality is more
Good signal；Therefore, when carrying out signal generation, as signal transmitting unit 105 sends out the amplified interference signal of the signal
When giving the corresponding destination node of the interference signal, wide lobe signal can be passed through and carry out signal transmission.
In embodiments of the present invention, the concrete function of other unit modules can be refering to above-mentioned Fig. 1 embodiment, herein no longer
It repeats.
The signal transmission system for including above-mentioned signal transmission node is described below, referring to Fig. 3, the present invention is real
The one embodiment for applying signal transmission system in example includes:
Source node 10, destination node 20, neighbors 30；
The source node 10 is the signal transmission node that the first signal is sent to the destination node 20, the neighbors 30
For the signal transmission node near the destination node 20；
The destination node 20 is used to receive the first signal that the source node 10 is sent and the neighbors 30 is sent
Second signal, determine that the signal type of first signal and the second signal is respectively this source signal and non-origin letter
Number, first signal and the second signal are subjected to signal synthesis, obtained required for local signal transmission node
Signal；The signal type includes: this source signal, non-source signal and interference signal；Described source signal is source node 10
The signal sent to destination node 20, the non-source signal is the signal that non-source node 10 is sent to destination node 20, described
Interference signal is the signal that non-destination node 20 receives；
It is understood that this source signal, the differentiation of non-source signal and interference signal these types signal type, only phase
For the signal transmission node for also receiving signal, i.e., for the source node for sending signal, transmitted pending signal
For same signal.
The neighbors 30 is used to receive the first signal that the source node 10 is sent, and determines first signal for interference
Signal carries out signal amplification to first signal, obtains second signal, sends second letter to the destination node 20
Number.
In practical applications, since neighbors 30 is also required to also have as the source node of other signal transmission nodes
Fixed signal radiation angle；When neighbors is needed to destination node forward signal, need to fixed signal radiation angle
It is adjusted, specifically, the angle of adjustment needs depending on the layout of each signal transmission node；Illustratively, it asks
Refering to Fig. 4, in signal transmission system, the layout of signal transmission node is the neat symmetrical structure of dot matrix type, the then angle adjusted
Degree can be 90 degree, 180 degree or 270 degree.Moire pattern in figure between two signal transmission nodes is showing for wide lobe signal
It is intended to.
In the practical application of the embodiment of the present invention, destination node and neighbors can all receive the first of source node transmission and believe
Number, for first signal, it is considered as this source signal in destination node side, is considered as interference signal, neighbors in neighbors side
After receiving first signal, signal amplification can be carried out to it, obtain second signal, then adjustment signal angle of radiation is transmitted to mesh
Node；For destination node, by neighbors forward second signal, be non-source signal, and with identical purpose
First signal of node is corresponding.
Further, the destination node 20 determines that the signal type of first signal and the second signal is respectively
This source signal and Fei Ben source signal specifically:
Using first signal as pending signal, power inspection is carried out to the pending signal, is examined according to the power
The result and corresponding power threshold looked into judge whether the destination node 20 of the pending signal is local signal transmission
Node, if so, the pending signal is this source signal or non-source signal, if it is not, then the pending signal is interference signal；
Channel estimation is carried out to the pending signal, if the node that the result instruction of the channel estimation sends the pending signal is source
Node 10, then the pending signal is this source signal, if the result instruction of the channel estimation sends the section of the pending signal
Point is non-source node 10, then the pending signal is non-source signal.
Further, first signal and the second signal are carried out signal synthesis by the destination node 20, are obtained
Signal required for signal transmission node to local, specifically:
Phase adjustment is carried out to the second signal, so that the second signal is in same phase with first signal
Position, first signal identical to phase and the second signal carry out signal synthesis, obtain local signal transmission section
Signal required for point.
In embodiments of the present invention, signal transmission node not only has received this source signal of source node transmission, also has received
The non-source signal that neighbors is sent, and synthesizes both signals, the available better signal of signal quality, from
So that the source node 10, destination node 20 and neighbors 30 are between any two using wide lobe letter when carrying out signal transmission
Number carry out signal transmission.
The method for transmitting signals of signal transmission node is described below, referring to Fig. 5, signal in the embodiment of the present invention
One embodiment of transmission method includes:
501, the pending signal that signal transmission node is sent is received；
Signal transmission node receives the pending signal that other signals transmission node is sent；Wherein, the other signals transmission
Node may include: source node and neighbors；The source node is the signal transmission that the first signal is sent to the destination node
Node, the neighbors are the signal transmission node near the destination node.
In embodiments of the present invention, the role of source node, destination node and neighbors distinguish all be in contrast, e.g.,
If what local signal transmission node received is this source signal and Fei Ben source signal, local signal transmission node relative to
The source node and neighbors of signal are sent, is purpose node；If sender of the local signal transmission node as signal, this
The signal transmission node on ground is source node relative to other nodes.Therefore, the signal transmission node in the embodiment of the present invention both may be used
Think source node, or destination node or neighbors.
502, the judgement of signal type is carried out to the pending signal；
Signal transmission node carries out the judgement of signal type to the pending signal, and the signal type includes: origin letter
Number, non-source signal and interference signal；Described source signal is the signal that source node is sent to destination node, the non-origin
Signal is the signal that non-source node is sent to destination node, and the interference signal is the signal that non-destination node receives.
If the pending signal is this source signal, 503 are thened follow the steps；
If the pending signal is non-source signal, 503 are thened follow the steps；
If the pending signal is interference signal, 504 are thened follow the steps.
It is understood that this source signal, the differentiation of non-source signal and interference signal these types signal type, only phase
For the signal transmission node for also receiving signal, i.e., for the source node for sending signal, transmitted pending signal
For same signal.
503, this source signal and non-source signal are subjected to signal synthesis；
If the pending signal is this source signal, by described source signal and the corresponding non-origin of described source signal
Signal carries out signal synthesis, obtains signal required for local signal transmission node.
If the pending signal is non-source signal, and the non-source signal and the non-source signal is corresponding
This source signal carries out signal synthesis, obtains signal required for local signal transmission node.
In the practical application of the embodiment of the present invention, destination node and neighbors can all receive the letter undetermined that source node is sent
Number, for the pending signal, it is considered as this source signal in destination node side, is considered as interference signal, neighbors in neighbors side
After receiving the interference signal, signal amplification can be carried out to it, then adjustment signal angle of radiation is transmitted to destination node；For mesh
Node for, by neighbors forward the amplified interference signal of signal, be non-source signal, and with identical purpose section
Described source signal of point is corresponding.
Therefore, if local signal transmission node has received this source signal, and the local signal transmission node
There are neighbors, then the local signal transmission node also will receive the corresponding with described source signal of the neighbors transmission
Non- source signal；Similarly, if local signal transmission node has received non-source signal, and the local signal passes
There is neighbors in defeated node, then the local signal transmission node also will receive believing with the non-origin for source node transmission again
Number corresponding non-source signal.
504, signal amplification is carried out to the interference signal, the amplified interference signal of the signal is sent to described dry
Disturb the corresponding destination node of signal.
If the pending signal is interference signal, signal amplification is carried out to the interference signal, the signal is amplified
Interference signal afterwards is sent to the corresponding destination node of the interference signal.
In practical applications, since neighbors is also required to the source node as other signal transmission nodes, also have solid
Fixed signal radiation angle；When neighbors is needed to destination node forward signal, need to fixed signal radiation angle into
Row adjustment, specifically, the angle of adjustment needs depending on the layout of each signal transmission node；Illustratively, if respectively
The layout of a signal transmission node is the neat symmetrical structure of dot matrix type, then the angle adjusted can be 90 degree, 180 degree or 270
Degree.
The method for transmitting signals in the embodiment of the present invention is described in detail below, referring to Fig. 6, the embodiment of the present invention
One embodiment of middle method for transmitting signals includes:
601, the pending signal that signal transmission node is sent is received；
Signal transmission node receives the pending signal that other signals transmission node is sent；Wherein, the other signals transmission
Node may include: source node and neighbors；The source node is the signal transmission that the first signal is sent to the destination node
Node, the neighbors are the signal transmission node near the destination node.
In embodiments of the present invention, the role of source node, destination node and neighbors distinguish all be in contrast, e.g.,
If what local signal transmission node received is this source signal and Fei Ben source signal, local signal transmission node relative to
The source node and neighbors of signal are sent, is purpose node；If sender of the local signal transmission node as signal, this
The signal transmission node on ground is source node relative to other nodes.Therefore, the signal transmission node in the embodiment of the present invention both may be used
Think source node, or destination node or neighbors.
602, the judgement of signal type is carried out to the pending signal；
Signal transmission node carries out the judgement of signal type to the pending signal, and the signal type includes: origin letter
Number, non-source signal and interference signal；Described source signal is the signal that source node is sent to destination node, the non-origin
Signal is the signal that non-source node is sent to destination node, and the interference signal is the signal that non-destination node receives.
If the pending signal is this source signal, 603 are thened follow the steps；
If the pending signal is non-source signal, 603 are thened follow the steps；
If the pending signal is interference signal, 605 are thened follow the steps.
Specifically, in practical applications, the decision process of signal type can be with are as follows:
Signal transmission node carries out power inspection to the pending signal, according to the result of the power inspection and accordingly
Power threshold judge whether the destination node of the pending signal is local signal transmission node, if so, it is described to
Determining signal is this source signal or non-source signal, if it is not, then the pending signal is interference signal.Illustratively, if purpose section
The thresholding for the signal power that point receives is A dbm, then described undetermined when the power of pending signal is greater than or equal to A dbm
Signal is this source signal or non-source signal, and when the power of pending signal is less than A dbm, then the pending signal is interference letter
Number.
Signal transmission node carries out channel estimation to the pending signal；If the result instruction of the channel estimation sends institute
The node for stating pending signal is source node, and local signal transmission node is the destination node of the pending signal, then described
Pending signal is this source signal；If the node that the result instruction of the channel estimation sends the pending signal is non-source node,
And local signal transmission node is the destination node of the pending signal, then the pending signal is non-source signal.
603, phase adjustment is carried out to the non-source signal, so that described non-this corresponding source signal of source signal
In same phase；
Signal transmission node carries out phase adjustment to the non-source signal, so that the non-source signal is corresponding
This source signal is in same phase.
604, identical source signal of phase and non-source signal are subjected to signal synthesis；
If the pending signal is this source signal, by described source signal and the corresponding non-origin of described source signal
Signal carries out signal synthesis, obtains signal required for local signal transmission node.
If the pending signal is non-source signal, and the non-source signal and the non-source signal is corresponding
This source signal carries out signal synthesis, obtains signal required for local signal transmission node.
In the practical application of the embodiment of the present invention, destination node and neighbors can all receive the letter undetermined that source node is sent
Number, for the pending signal, it is considered as this source signal in destination node side, is considered as interference signal, neighbors in neighbors side
After receiving the interference signal, signal amplification can be carried out to it, then adjustment signal angle of radiation is transmitted to destination node；For mesh
Node for, by neighbors forward the amplified interference signal of signal, be non-source signal, and with identical purpose section
Described source signal of point is corresponding.
Therefore, if local signal transmission node has received this source signal, and the local signal transmission node
There are neighbors, then the local signal transmission node also will receive the corresponding with described source signal of the neighbors transmission
Non- source signal；Similarly, if local signal transmission node has received non-source signal, and the local signal passes
There is neighbors in defeated node, then the local signal transmission node also will receive believing with the non-origin for source node transmission again
Number corresponding non-source signal.
605, signal amplification is carried out to the interference signal, the amplified interference signal of the signal is sent to described dry
Disturb the corresponding destination node of signal.
If the pending signal is interference signal, signal amplification is carried out to the interference signal, the signal is amplified
Interference signal afterwards is sent to the corresponding destination node of the interference signal.
In practical applications, since neighbors is also required to the source node as other signal transmission nodes, also have solid
Fixed signal radiation angle；When neighbors is needed to destination node forward signal, need to fixed signal radiation angle into
Row adjustment, specifically, the angle of adjustment needs depending on the layout of each signal transmission node；Illustratively, if respectively
The layout of a signal transmission node is the neat symmetrical structure of dot matrix type, then the angle adjusted can be 90 degree, 180 degree or 270
Degree.
Further, the amplified interference signal of the signal can be passed through to the biography of wide lobe signal with signal transmission node
Defeated mode is sent to the corresponding destination node of the interference signal.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (14)
1. a kind of signal transmission node characterized by comprising
Signal receiving unit, signal judging unit, signal regeneration unit, signal synthesis unit, signal transmitting unit；
The signal receiving unit is used to receive the pending signal that signal transmission node non-indigenous is sent；
The signal judging unit carries out the judgement of signal type to the pending signal, and the signal type includes: origin letter
Number, non-source signal and interference signal；Described source signal is the signal that source node is sent to destination node, the non-origin
Signal is the signal that non-source node is sent to destination node, and the interference signal is the signal that non-destination node receives；
If the pending signal is this source signal, the signal synthesis unit is by described source signal and described source signal
Corresponding non-source signal carries out signal synthesis, obtains signal required for local signal transmission node；
If the pending signal is non-source signal, the signal synthesis unit is by the non-source signal and non-described
Corresponding source signal of source signal carries out signal synthesis, obtains signal required for local signal transmission node；
If the pending signal is interference signal, the signal regeneration unit carries out signal amplification to the interference signal, then
The amplified interference signal of the signal is sent to the corresponding destination node of the interference signal by the signal transmitting unit.
2. signal transmission node according to claim 1, which is characterized in that the signal judging unit includes:
Power estimation module, for carrying out power inspection to the pending signal；
Signal decision module, for judging the letter undetermined according to the result and corresponding power threshold of the power inspection
Number destination node whether be local signal transmission node, if so, the pending signal is that this source signal or non-origin are believed
Number, if it is not, then the pending signal is interference signal.
3. signal transmission node according to claim 2, which is characterized in that the signal judging unit includes:
Channel estimation module, for carrying out channel estimation to the pending signal；
The signal decision module is also used to according to the result of the channel estimation and the power inspection as a result, determining institute
Stating pending signal is this source signal or non-source signal.
4. according to claim 1 to signal transmission node described in 3 any one, which is characterized in that the signal synthesis unit
Include:
Phase adjusting module, for carrying out phase adjustment to the non-source signal, so that the non-source signal is corresponding
This source signal be in same phase.
5. according to claim 1 to signal transmission node described in 3 any one, which is characterized in that the signal transmitting unit
Also signal transmission is carried out with by wide lobe signal.
6. a kind of signal transmission system characterized by comprising
Source node, destination node, neighbors；
The source node is the signal transmission node that the first signal is sent to the destination node, and the neighbors is positioned at described
Signal transmission node near destination node；
The destination node is used to receive the second signal that the first signal that the source node is sent and the neighbors are sent,
The signal type for determining first signal and the second signal is respectively this source signal and Fei Ben source signal, by described first
Signal and the second signal carry out signal synthesis, obtain signal required for local signal transmission node；The signal
Type includes: this source signal, non-source signal and interference signal；Described source signal is what source node was sent to destination node
Signal, the non-source signal are the signal that non-source node is sent to destination node, and the interference signal is that non-destination node connects
The signal received；
The neighbors is used to receive the first signal that the source node is sent, and determines that first signal is interference signal, right
First signal carries out signal amplification, obtains second signal, sends the second signal to the destination node.
7. signal transmission system according to claim 6, which is characterized in that the determination first signal and described
The signal type of binary signal is respectively this source signal and Fei Ben source signal, comprising:
Using first signal as pending signal, power inspection is carried out to the pending signal, according to the power inspection
As a result and accordingly power threshold judges whether the destination node of the pending signal is local signal transmission node, if
It is that then the pending signal is this source signal or non-source signal, if it is not, then the pending signal is interference signal；To described
Pending signal carries out channel estimation, if the node that the result instruction of the channel estimation sends the pending signal is source node,
Then the pending signal is this source signal, if the node that the result instruction of the channel estimation sends the pending signal is non-source
Node, then the pending signal is non-source signal.
8. signal transmission system according to claim 6 or 7, which is characterized in that described by first signal and institute
It states second signal and carries out signal synthesis, obtain signal required for local signal transmission node, comprising:
Phase adjustment is carried out to the second signal, so that the second signal and first signal are in same phase, it is right
Identical first signal of phase and the second signal carry out signal synthesis, obtain needed for local signal transmission node
The signal wanted.
9. according to signal transmission system described in claim 6 to 7 any one, which is characterized in that the source node, purpose section
Point and neighbors carry out signal transmission using wide lobe signal between any two.
10. a kind of method for transmitting signals characterized by comprising
Receive the pending signal that signal transmission node is sent；
To the pending signal carry out signal type judgement, the signal type includes: this source signal, non-source signal and
Interference signal；Described source signal is the signal that source node is sent to destination node, the non-source signal for non-source node to
The signal that destination node is sent, the interference signal are the signal that non-destination node receives；
If the pending signal is this source signal, by described source signal and the corresponding non-source signal of described source signal
Signal synthesis is carried out, signal required for local signal transmission node is obtained；
If the pending signal is non-source signal, by the non-source signal and the corresponding origin of the non-source signal
Signal carries out signal synthesis, obtains signal required for local signal transmission node；
If the pending signal is interference signal, signal amplification is carried out to the interference signal, the signal is amplified
Interference signal is sent to the corresponding destination node of the interference signal.
11. method for transmitting signals according to claim 10, which is characterized in that described to carry out signal to the pending signal
The judgement of type, comprising:
Power inspection is carried out to the pending signal, is judged according to the result of the power inspection and corresponding power threshold
Whether the destination node of the pending signal is local signal transmission node, if so, the pending signal is this source signal
Or non-source signal, if it is not, then the pending signal is interference signal.
12. method for transmitting signals according to claim 11, which is characterized in that described to carry out signal to the pending signal
The judgement of type, further includes:
Channel estimation is carried out to the pending signal；If the result instruction of the channel estimation sends the node of the pending signal
For source node, and local signal transmission node is the destination node of the pending signal, then the pending signal is that origin is believed
Number；If the node that the result instruction of the channel estimation sends the pending signal is non-source node, and local signal transmits
Node is the destination node of the pending signal, then the pending signal is non-source signal.
13. method for transmitting signals described in 0 to 12 any one according to claim 1, which is characterized in that
It is described that corresponding source signal of the non-source signal and the non-source signal is subjected to signal synthesis, obtain local
Signal transmission node required for signal, comprising:
Phase adjustment is carried out to the non-source signal, so that described non-this corresponding source signal of source signal is in same
Phase, corresponding source signal of the non-source signal identical to phase and the non-source signal carry out signal synthesis,
Obtain signal required for local signal transmission node；
It is described that described source signal and the corresponding non-source signal of described source signal are subjected to signal synthesis, it obtains local
Signal required for signal transmission node
Phase adjustment is carried out to the non-source signal, so that described non-this corresponding source signal of source signal is in same
Phase, described source signal identical to phase and the corresponding non-source signal of described source signal carry out signal synthesis, obtain
To signal required for local signal transmission node.
14. method for transmitting signals described in 0 to 12 any one according to claim 1, which is characterized in that described by the signal
Amplified interference signal is sent to the corresponding destination node of the interference signal, comprising:
The amplified interference signal of the signal is sent to the interference signal by the transmission mode of wide lobe signal to correspond to
Destination node.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/080367 WO2015192366A1 (en) | 2014-06-20 | 2014-06-20 | Signal transmission node, system and method |
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|---|---|---|---|---|
| CN1799277A (en) * | 2003-06-05 | 2006-07-05 | 学校法人庆应义塾 | Radio communication apparatus, radio communication method, communication channel assigning method and assigning apparatus |
| CN102484542A (en) * | 2009-09-08 | 2012-05-30 | 瑞典爱立信有限公司 | Load Estimation in Wireless Communications |
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| US8761323B2 (en) * | 2011-09-28 | 2014-06-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Impairment covariance and combining weight updates during iterative turbo interference cancellation reception |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1799277A (en) * | 2003-06-05 | 2006-07-05 | 学校法人庆应义塾 | Radio communication apparatus, radio communication method, communication channel assigning method and assigning apparatus |
| CN102484542A (en) * | 2009-09-08 | 2012-05-30 | 瑞典爱立信有限公司 | Load Estimation in Wireless Communications |
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