CN108075867A - A kind of method and access point of frame re-transmission of eating dishes without rice or wine - Google Patents
A kind of method and access point of frame re-transmission of eating dishes without rice or wine Download PDFInfo
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- CN108075867A CN108075867A CN201611022866.8A CN201611022866A CN108075867A CN 108075867 A CN108075867 A CN 108075867A CN 201611022866 A CN201611022866 A CN 201611022866A CN 108075867 A CN108075867 A CN 108075867A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A kind of method and access point of frame re-transmission of eating dishes without rice or wine are disclosed, is related to field of communication technology, number of retransmissions caused by signal blocks can be reduced.The method that frame retransmits of eating dishes without rice or wine includes：First access point receives the re-transmission that sender sends and eats dishes without rice or wine frame, and re-transmission frame of eating dishes without rice or wine includes effective retransmit and marks, it is described it is effective retransmit mark and be used to indicate the re-transmission frame is eated dishes without rice or wine to send in retransmission processes；First access point processing re-transmission eats dishes without rice or wine frame and is eated dishes without rice or wine frame with obtaining target, and the target is eated dishes without rice or wine the re-transmission marked invalid of frame；First access point sends the target and eats dishes without rice or wine frame.The application is suitable for frame retransmission processes of eating dishes without rice or wine.
Description
Technical field
This application involves field of communication technology more particularly to a kind of methods and access point of frame re-transmission of eating dishes without rice or wine.
Background technology
With WLAN (English：Wireless local area networks, WLAN) technology popularization, send
It eats dishes without rice or wine frame via wireless medium transmissions between person and purpose recipient.Although WLAN technologies can provide to the user more easily
Wireless networking condition, but compared with cable network, the hollow choma border of wireless network is relative complex, can thus reduce the steady of WLAN
It is qualitative.Such as：In frame transmission process of eating dishes without rice or wine, due to, there are barriers such as wall, pillars, and making transmitting in transmission path
Signal be blocked so that transmitting eat dishes without rice or wine frame generate packet loss phenomenon, that is, packet loss of eating dishes without rice or wine.
In order to solve the problems, such as above-mentioned packet loss of eating dishes without rice or wine, if sender does not receive purpose recipient feedback within a certain period of time
Response (English：Acknowledgement, ACK) message, then it is assumed that this transmission process fails.Sender again attempts to send out
The frame of eating dishes without rice or wine that this is given to transmit.Until sender receives ACK message or until number of retransmissions, which reaches, retries limitation afterwards
Terminate retransmission processes.
Although aforesaid way can reduce packet loss of eating dishes without rice or wine, but if there are prolonged signal blocks situations, then very may be used
Sender can be caused not receive the ACK message of purpose recipient feedback for a long time, such sender will frequently be retransmitted,
But the re-transmission that above-mentioned retransmission processes can't make purpose recipient receive sender's transmission is eated dishes without rice or wine frame, substantial amounts of so as to consume
Interface-free resources, and the overall transmission delay for frame of eating dishes without rice or wine is high.
The content of the invention
The application provides a kind of method and access point of frame re-transmission of eating dishes without rice or wine, can reduce the overall transmission delay for frame of eating dishes without rice or wine.
In a first aspect, the application provides a kind of method for frame re-transmission of eating dishes without rice or wine.This method includes：First access point, which receives, to be sent
The re-transmission that person sends is eated dishes without rice or wine frame, and re-transmission frame of eating dishes without rice or wine includes effective retransmit and marks, and the effective mark that retransmits is used to indicate re-transmission
Frame is eated dishes without rice or wine to send in retransmission processes；First access point processing afterwards, which retransmits, eats dishes without rice or wine frame and eats dishes without rice or wine frame and to send to obtain target,
Wherein, target is eated dishes without rice or wine the re-transmission marked invalid of frame.If there are barrier in transmission path between sender and purpose recipient, that
Sender it is upper once carry out data transmission with purpose recipient when, the frame that can not will eat dishes without rice or wine is sent directly to purpose recipient.
Above-mentioned transmission mode is mainly that the transmission path for frame of eating dishes without rice or wine, the sender there are barrier and purpose between being allowed to are retransmitted by changing
Recipient can complete data interaction by the first access point.Wherein, the first access point is as forward node, the weight that will be received
Biography frame of eating dishes without rice or wine forwards after processing, so that purpose recipient can be successfully received target and eat dishes without rice or wine frame.The application is equivalent to change
The scene retransmitted, so as to adding the probability of success of retransmission processes.In this application, the first access point is recognizing hair
After effectively mark being retransmitted in the frame of eating dishes without rice or wine that the person of sending sends, it may be determined that this eats dishes without rice or wine frame as the re-transmission being forwarded to is needed to eat dishes without rice or wine
Frame, afterwards in order to avoid other access points repeat forwarding operation after the frame of eating dishes without rice or wine of the first access point forwarding is received, the
One access point needs to handle re-transmission frame of eating dishes without rice or wine, and the target for obtaining retransmitting marked invalid eats dishes without rice or wine frame and to complete to forward.Therefore,
The application can between sender and purpose recipient there are barrier in the case of, when reducing frame of eating dishes without rice or wine whole and sending
Prolong.
In a kind of possible design, except eat dishes without rice or wine frame and target empty can be retransmitted using the value for retransmitting mark as differentiation
Outside the condition of mouth frame, can also special marking be set in frame of eating dishes without rice or wine, be to distinguish to retransmit to mark with the value of special marking
It is no effectively, equally achieve the effect that distinguish to retransmit and eat dishes without rice or wine frame and target is eated dishes without rice or wine frame.
In a kind of possible design, sender is the second access point, and the weight of sender's transmission is received in the first access point
Biography is eated dishes without rice or wine after frame, and the first access point determines the neighbours that the second access point is the first access point.If re-transmission is eated dishes without rice or wine, frame is from the
What two access points were sent, processing, the forwarding operation of frame of eating dishes without rice or wine are retransmitted, is only performed by the neighboring access point of the second access point, i.e.,
It is performed by the first access point.The access points that frame of eating dishes without rice or wine is retransmitted instead of the forwarding of same second access point can thus be reduced
Amount.Simultaneously as the quantity of the first access point, which differs, is set to one, therefore, weight can be received there are multiple in the second access point
When passing the neighboring access point for frame of eating dishes without rice or wine, these first access points for meeting neighbor condition can replace the second access point to retransmit warp
The obtained target of processing is eated dishes without rice or wine frame, can also so be avoided because there are barriers between a certain first access point and purpose recipient
And retransmission processes are influenced, the target that causing purpose recipient still can not receive after retransmitting is eated dishes without rice or wine frame.
In a kind of possible design, a kind of reality of specific definite second access point for the neighbours of the first access point is provided
Existing mode, including：First access point measures the signal strength of the second access point, and obtains the second access of other access points measurement
The signal strength of point；If the signal of the second access point of the first access point of signal intensity ratio measurement of the second access point measured
The quantity of other big access points of intensity is less than first threshold, then the first access point determines the second access point for the first access point
Neighbours.
In a kind of possible design, if sender is non-access point website, and non-access point station associate the 3rd accesses
Point, then the re-transmission sent in the first access point reception sender is eated dishes without rice or wine after frame, and the first access point measures the 3rd access point
Signal strength, and determine that the signal strength of the 3rd access point is more than second threshold.If re-transmission is eated dishes without rice or wine, frame is from non-access point station
Point is sent to its associated 3rd access point, and only with the 3rd access point communication, smoothly the first access point is on behalf of re-transmission, to keep away
Exempt from invalid forwarding and retransmit frame of eating dishes without rice or wine.
In a kind of possible design, if sender is non-access point website, and non-access point station associate the 3rd accesses
Point, then the re-transmission sent in the first access point reception sender is eated dishes without rice or wine after frame, and the first access point determines that the 3rd access point is
The neighbours of first access point.First access point can measure the signal strength of the 3rd access point, and obtain the measurement of other access points
The 3rd access point signal strength；If the 3rd of the first access point of signal intensity ratio measurement of the 3rd access point measured the connects
The quantity of other big access points of the signal strength of access point is less than the 3rd threshold value, then the first access point determines the 3rd access point for the
The neighbours of one access point.If it is to be sent to its associated 3rd access point from non-access point website to retransmit frame of eating dishes without rice or wine, only by the
The neighbours of three access points are on behalf of re-transmission, to reduce the quantity that forwarding retransmits the access point for frame of eating dishes without rice or wine.
On the other hand, the present invention provides a kind of access point.The access point can realize in above method embodiment that first connects
Function performed by access point, the function by hardware can also be performed corresponding software and be realized by hardware realization.Institute
Stating hardware or software includes one or more above-mentioned corresponding modules of function.
In a kind of possible design, the structure of the access point includes processor and transceiver, which is configured
To be able to carry out corresponding function in the above method.The transceiver is used to support the communication between the access point and other equipment.
The access point can also include memory, which preserves the necessary program of the access point and refer to for being coupled with processor
Order and data.
Another aspect, the present invention provide a kind of network communicating system, which includes can realize described in above-mentioned aspect
The access point of above-mentioned function.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of structure diagram of network communicating system provided in an embodiment of the present invention；
Fig. 2 is a kind of method flow diagram of frame re-transmission of eating dishes without rice or wine provided in an embodiment of the present invention；
Fig. 3 be another kind provided in an embodiment of the present invention eat dishes without rice or wine frame re-transmission method flow diagram；
Fig. 4 be another kind provided in an embodiment of the present invention eat dishes without rice or wine frame re-transmission method flow diagram；
Fig. 5 be another kind provided in an embodiment of the present invention eat dishes without rice or wine frame re-transmission method flow diagram；
Fig. 6 be another kind provided in an embodiment of the present invention eat dishes without rice or wine frame re-transmission method flow diagram；
Fig. 7 is a kind of structure diagram of first access point provided in an embodiment of the present invention；
Fig. 8 is the structure diagram of another first access point provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention can be used for a kind of network communicating system, as shown in Figure 1, in the network communicating system at least
Including the first access point, sender and purpose recipient.Wherein, sender is specifically as follows the second access point or non-access point
Website, if sender is non-access point website, then sender associates purpose recipient, and purpose recipient can be specially the
Three access points.In embodiments of the present invention, sender can carry out data interaction with the first access point, purpose recipient respectively,
But due to there is barrier such as shown in FIG. 1 in the transmission link of sender and purpose recipient, transmitted by sender
Frame of eating dishes without rice or wine can not be often properly received by purpose recipient, also just need using the application propose implementation, by first
Access point is as forward node, and to realize the data exchange process between sender and purpose recipient, i.e. the application is proposed
Frame retransmission processes of eating dishes without rice or wine.
The embodiment of the present invention provides a kind of method for frame re-transmission of eating dishes without rice or wine, and this method is suitable for above-mentioned network communicating system, tool
Body can jointly be performed by sender, purpose recipient and the first access point.Wherein, when the first AP sends downlink sky to terminal
Carry out eating dishes without rice or wine frame during mouthful frame when retransmitting, then sender is specially that the first AP, following A P are specially that the 2nd AP, purpose recipient are specific
For terminal；When terminal sends ascending idle port frame to the first AP eat dishes without rice or wine frame when retransmitting, then sender be specially terminal, it is following
AP is specially that the 2nd AP, purpose recipient are specially the first AP.As shown in Fig. 2, this method flow includes：
101st, sender, which sends, retransmits frame of eating dishes without rice or wine.
Wherein, retransmit frame of eating dishes without rice or wine and include effective retransmit and mark, it is effective retransmit mark and be used to indicate re-transmission frame of eating dishes without rice or wine be
It is sent in retransmission processes.
It is sender after sending and not receiving ACK message in the certain time after frame of commonly eating dishes without rice or wine to retransmit frame of eating dishes without rice or wine, then
The frame of eating dishes without rice or wine of secondary transmission, the content of frame of commonly eating dishes without rice or wine and re-transmission eat dishes without rice or wine frame content it is identical, that is, retransmit and eat dishes without rice or wine frame and commonly to eat dishes without rice or wine
The frame payload part of frame is identical, and other parts of the frame head part in addition to retransmitting and marking are identical.
102nd, the first access point receives the re-transmission that sender sends and eats dishes without rice or wine frame.
In the form of WLAN frames, in media access control (English：Media Access Control, MAC) head (English
Text：MAC Header) it is provided with frame control (English：Frame Control) field.Re-transmission is provided in frame control field
(English：Retry) mark, account for 1 (English：bit).It retransmits mark and can be configured to 0 or 1.Wherein, the weight for frame of eating dishes without rice or wine is retransmitted
It passes mark and is arranged to 1, the re-transmission mark for frame of commonly eating dishes without rice or wine is arranged to 0.
103rd, the processing of the first access point, which retransmits, eats dishes without rice or wine frame and is eated dishes without rice or wine frame with obtaining target.
Wherein, target is eated dishes without rice or wine the re-transmission marked invalid of frame.
In embodiments of the present invention, processing retransmits the mode for frame of eating dishes without rice or wine mainly by the way that effective mark that retransmits is changed to nothing
Effect retransmit mark, specific processing mode can there are many, for example, by retransmit mark on have numerical value reset or retransmitting
It eats dishes without rice or wine to add special marking in frame, afterwards by adjusting the numerical value on special marking, be retransmitted with instruction labeled as effective or invalid.
It is not provided only with re-transmission mark in frame control field, is additionally provided with more data (English：More Data) and sequence
Number (English：The fields such as Order).Wherein, when more data field is arranged to 1, then it represents that at least will there are one frame of eating dishes without rice or wine
It is sent to purpose recipient.When sequence number field is arranged to 1, then it represents that this current frame of eating dishes without rice or wine divides the situation of biography for long frame, together
When inform purpose recipient, it is necessary in strict accordance with this kind of frame of eating dishes without rice or wine of sequential processes.It can be seen that it is set in above-mentioned two mark
For 0 when, then do not indicate that any meaning, therefore, in embodiments of the present invention, can also above-mentioned two mark need not play work
Used time as special marking, the processing for frame of eating dishes without rice or wine to re-transmission is passed through for the first access point, mark is retransmitted to obtain being revoked
Target is eated dishes without rice or wine frame.
104th, the first access point sends target and eats dishes without rice or wine frame.
If there are barrier in transmission path between sender and purpose recipient, as shown in Figure 1, sender it is upper once
When carrying out data transmission with purpose recipient, the frame that can not will eat dishes without rice or wine is sent directly to purpose recipient.Therefore, when the first access point
It receives the re-transmission that sender sends again to eat dishes without rice or wine after frame, the first access point sends the frame of eating dishes without rice or wine, to attempt around sender
Barrier between recipient.If the target empty sent between the first access point and recipient without barrier, the first access point
Mouthful frame can the person of being received receive, so as to complete the frame retransmission processes of eating dishes without rice or wine between sender and recipient.
105th, when purpose recipient receive target eat dishes without rice or wine frame after, purpose recipient eats dishes without rice or wine to target at frame
Reason.
If other recipients receive target and eat dishes without rice or wine frame, if the re-transmission marked invalid that target is eated dishes without rice or wine in frame is recognized, and
Determine that the target destination address carried in frame of eating dishes without rice or wine not is Self address, then it is unrelated with itself to be considered as target frame of eating dishes without rice or wine,
And without retransmitting, then other recipients can directly abandon target and eat dishes without rice or wine frame.Therefore it is frequent to avoid re-transmission frame of eating dishes without rice or wine
" reflection " avoids other recipients after the frame of eating dishes without rice or wine of re-transmission is received, and re-transmission next time is carried out to the frame of eating dishes without rice or wine
Operation, to reduce the waste of additional transmission resources in retransmission processes.
If there are barriers in transmission path between sender and purpose recipient, then sender it is upper once with purpose
When recipient carries out data transmission, the frame that can not will eat dishes without rice or wine is sent directly to purpose recipient.Transmission is received in the first access point
The re-transmission that person sends again is eated dishes without rice or wine after frame, and the first access point eats dishes without rice or wine frame and eated dishes without rice or wine frame with obtaining target by handling to retransmit, concurrently
The target sent is eated dishes without rice or wine frame.Above-mentioned transmission mode is mainly that the transmission path for frame of eating dishes without rice or wine is retransmitted by changing, and is existed between being allowed to
The sender of barrier can complete data interaction with purpose recipient by the first access point.Wherein, the first access point conduct
Forward node forwards the re-transmission received frame of eating dishes without rice or wine, after processing so that purpose recipient can be successfully received target empty
Mouth frame.It in this application, can be true after the first access point effectively retransmits mark in the frame of eating dishes without rice or wine for recognizing sender's transmission
Fixed this eats dishes without rice or wine frame for the re-transmission being forwarded to is needed to eat dishes without rice or wine frame, afterwards in order to avoid other access points are receiving the first access point
Forwarding operation is repeated after the frame of eating dishes without rice or wine of forwarding, the first access point needs to handle retransmitting frame of eating dishes without rice or wine, obtains retransmitting mark
Remember that invalid target eats dishes without rice or wine frame and to complete to forward.Therefore, the sender and mesh that the application can be between ensuring there are barrier
Recipient be smoothed out communication in the case of, reduce the whole transmission delay of frame of eating dishes without rice or wine.
In embodiments of the present invention, sender be the second access point when, purpose recipient can be other access points or
It is non-access point website；Alternatively, when sender is non-access point website, purpose recipient can be the 3rd access point.Wherein,
The 3rd access point of non-access point station associate.
Two specific embodiments are given below, to illustrate that sender is the second access point and sender is respectively
The retransmission processes of non-access point website.
By taking interaction flow shown in Fig. 2 as an example, if sender is the second access point, as shown in figure 3, being connect in the first access point
The re-transmission for receiving sender's transmission eats dishes without rice or wine after frame, to can also carry out step 106：
106th, the first access point determines the neighbours that the second access point is the first access point.
In embodiments of the present invention, processing, the forwarding operation for frame of eating dishes without rice or wine are retransmitted, only by the second access point as sender
Neighboring access point perform, i.e., performed by the first access point.Multiple access points thus can effectively be reduced instead of same
The forwarding of second access point retransmits frame of eating dishes without rice or wine, simultaneously as the quantity of the first access point, which differs, is set to one, therefore, in the second access
Point there are it is multiple can receive retransmit eat dishes without rice or wine frame neighboring access point when, these first access points for meeting neighbor condition all may be used
Eated dishes without rice or wine frame so that the second access point is replaced to retransmit processed obtained target, can also so avoid because a certain first access point with
Retransmission processes are influenced there are barrier between purpose recipient, purpose recipient is caused still can not to receive the target after retransmitting
It eats dishes without rice or wine frame.
It should be noted that the first access point determines the process and step for the neighbours that the 3rd access point is the first access point hereinafter
Rapid 106 is similar, both realization processes can be viewed as an access point and determine that another access point is this access point
Neighbours process.There are many modes for determining the neighboring access point of the second access point, for example, can be by determining to receive weight
Passing the air line distance between the access point and the second access point for frame of eating dishes without rice or wine, whether the distance being less than between distance threshold or the two is
No relative close, with determine the access point whether be the second access point neighbours.Wherein it is determined that the mode of air line distance can also
There are many, for example, the total duration that is transmitted by the frame that determines to eat dishes without rice or wine between the two or by actual measurement or passing through
The other parameters such as path loss, with determine current access point whether be the second access point neighbours.Similarly, the neighbour of the 3rd access point is determined
Occupying the mode of access point can also be realized using the above method.
As shown in figure 4, above-mentioned steps 106 can be implemented as step 201 to step 203：
201st, the first access point measures the signal strength of the second access point.
The signal strength of measured the second obtained access point of first access point is：Second access point is to the first access point
Send signal, signal strength of first access point when receiving signal.First access point can also obtain the survey of the second access point
The signal strength of first access point of amount, i.e. the first access point send signal to the second access point, and the second access point is receiving
Signal strength during signal, does not limit herein.
202nd, the first access point obtains the signal strength of the second access point of other access points measurement.
If the signal of the second access point of the first access point of signal intensity ratio measurement of the second access point the 203rd, measured
The quantity of other big access points of intensity is less than first threshold, then the first access point determines the second access point for the first access point
Neighbours.
Above-mentioned steps 201 may be performed simultaneously with step 202 or be performed according to certain sequencing.In the first access point
After the signal strength for determining the second access point measured by itself and other access points, it may be determined that second measured
The quantity of other access points of the signal strength of second access point of the first access point of signal intensity ratio measurement of access point greatly is small
When first threshold, the second access point is the neighbours of itself.Wherein, first threshold can be the positive integer more than or equal to 1.
When the value of first threshold is 1, if meeting above-mentioned condition, then it represents that there is no the signal intensity ratios of the second access point measured
Other big access points of the signal strength of second access point of the first access point measurement, then the first access point can be considered as with
The access point that second access point is closest or communication conditions are best, therefore, neighbour of second access point as the first access point
It occupies, the first access point can participate in retransmission processes；When the value of first threshold is the positive integer more than 1, if meeting above-mentioned item
Part, then it represents that there are the second access points of the first access point of signal intensity ratio measurement of at least one the second access point measured
Big other access points of signal strength, but be successfully sent to ensure to retransmit frame of eating dishes without rice or wine to purpose recipient, in the present invention
In embodiment, the first access point can also serve as forward node, other access points with meeting condition are completed to retransmit together empty
Processing, the forwarding of mouth frame.
It is used to represent whether itself and other each access points belong to adjacent alternatively, can prestore in each access point one
The form in residence receives re-transmission in access point and eats dishes without rice or wine after frame, can be determined directly from form itself between sender whether
Belong to neighborhood, to determine itself whether to need eat dishes without rice or wine to re-transmission frame processing, forwarding.In embodiments of the present invention, for true
Whether fixed second access point is that the realization method of neighbours of the first access point does not limit, and above-mentioned realization method only can as one kind
The realization method of energy.
If the second access point is not belonging to the neighbours of the first access point, then the weight that the first access point will can be received directly
Biography eat dishes without rice or wine frame discarding, handled without frame of eating dishes without rice or wine to the re-transmission.
By taking interaction flow shown in Fig. 2 as an example, if sender is non-access point website, as shown in figure 5, in the first access point
The re-transmission for receiving sender's transmission eats dishes without rice or wine after frame, to can also carry out step 204 and step 205：
204th, the first access point measures the signal strength of the 3rd access point.
Similar with above-mentioned steps 106, the signal strength of measured the 3rd obtained access point of the first access point can be：
3rd access point sends signal, signal strength of first access point when receiving signal to the first access point.First access point
The signal strength of the first access point of the 3rd access point measurement can also be obtained, i.e. the first access point is sent to the 3rd access point to be believed
Number, signal strength of the 3rd access point when receiving signal does not limit herein.
205th, the first access point determines that the signal strength of the 3rd access point is more than second threshold.
In embodiments of the present invention, second threshold can be set by staff according to historical experience value.Wherein,
The effect of two threshold values is：As with reference to being worth, screened in numerous access points and retransmit eat dishes without rice or wine frame processing, forwarding operation
Access point.
If the first access point determines that the signal strength of the 3rd access point is less than or equal to second threshold, the first access point is lost
The re-transmission for abandoning sender's transmission is eated dishes without rice or wine frame, and re-transmission frame of eating dishes without rice or wine can be disclosure satisfy that the access point processing of above-mentioned condition by other, be turned
Hair.
Except the realization method shown in Fig. 5, realization method as shown in Figure 6 is also implemented as, i.e., in the first access point
The re-transmission for receiving sender's transmission eats dishes without rice or wine after frame, to can also carry out step 206 to step 208：
206th, the first access point measures the signal strength of the 3rd access point.
207th, the signal strength of the 3rd access point of other access points measurement is obtained.
If the signal of the 3rd access point of the first access point of signal intensity ratio measurement of the 3rd access point the 208th, measured
The quantity of other big access points of intensity is less than the 3rd threshold value, then the first access point determines the 3rd access point for the first access point
Neighbours.
Above-mentioned steps 206 and step 207, it is similar with step 202 with above-mentioned steps 201, may be performed simultaneously or according to
Certain sequencing performs.
In addition, it is contemplated that in actual retransmission processes, purpose recipient may receive more parts and come from difference first
The identical frame of eating dishes without rice or wine that access point retransmits, also means that, purpose recipient can receive the message of more parts of redundancies.It is connect in purpose
After receipts person receives frame of eating dishes without rice or wine, it can be handled according to the sequence number in 802.11 frames come the message to redundancy.It eats dishes without rice or wine frame
Frame head include sequence number, and the sequence number for carrying the frame frame head of eating dishes without rice or wine of identical content is identical.Therefore, if purpose recipient
It is received to the frame of eating dishes without rice or wine for carrying the sequence number, then purpose recipient, which can consider, currently received eats dishes without rice or wine frame to repeat
Frame.Purpose recipient can abandon the frame of eating dishes without rice or wine repeated.
It can be seen that being compared to retransmission scheme of the prior art, the embodiment of the present invention, which is equivalent to, changes re-transmission
Scene so as to add the probability of success of retransmission processes, reduces packet loss, meanwhile, also avoid retransmission processes repeatedly
Appearance, improve transmission efficiency of air interface.If a certain access point is eated dishes without rice or wine after frame receiving re-transmission, itself is found and need not
Retransmission processes are participated in, then can directly be abandoned the frame of eating dishes without rice or wine, so as to avoid the additional wasting of resources.
It is above-mentioned that mainly scheme provided in an embodiment of the present invention is described from the angle of interaction between each equipment.It can
With understanding, each equipment, such as first access point etc., in order to realize above-mentioned function, it comprises performing, each function is corresponding
Hardware configuration and/or software module.Those of ordinary skill in the art should be readily appreciated that, with reference to disclosed herein
Each exemplary unit and algorithm steps of embodiment description, the present invention can be with the combination shape of hardware or hardware and computer software
Formula is realized.Some functions is performed in a manner of hardware or computer software driving hardware actually, depending on technical solution
Specific application and design constraint.Those of ordinary skill in the art can use distinct methods to each specific application
Realize described function, but this realization is it is not considered that beyond the scope of this invention.
In embodiments of the present invention, above-mentioned each function can correspond to function module independently, can also will wherein
At least two function modules are integrated into a certain certain functional modules, and Fig. 7 illustrates only a kind of possible structure diagram.First connects
Access point 30 includes：Receiving module 31, processing module 32, sending module 33, determining module 34, measurement module 35 and acquisition module
36.Wherein, receiving module 31 can be used for performing the step 102 in Fig. 2, Fig. 3, Fig. 5, Fig. 6；Processing module 32 can be used for holding
Step 103 in row Fig. 2, Fig. 3, Fig. 5, Fig. 6；Sending module 33 can be used for performing the step in Fig. 2, Fig. 3, Fig. 5, Fig. 6
104；Determining module 34 can be used for perform Fig. 3 in step 106, the step 203 in Fig. 4, the step 205 in Fig. 5, in Fig. 6
Step 208；Measurement module 35 can be used for performing the step 201 in Fig. 4, the step 204 in Fig. 5, the step 206 in Fig. 6；
Acquisition module 36 can be used for performing the step 202 in Fig. 4, the step 207 in Fig. 6.First access point 30 can also include depositing
Module 37 is stored up, for storing program code and data.Wherein, all related contents for each step that above method embodiment is related to
The function description of corresponding function module can be quoted, details are not described herein.
The first access point involved by the embodiment of the present invention can be the first access point 40 shown in Fig. 8.Refering to Fig. 8 institutes
Show, the first access point 40 includes：Processor 41, transceiver 42.In embodiments of the present invention, can also include memory 43, with
And bus 44.Wherein, processor 41 and memory 43 are connected with each other by bus 44.Wherein, it is total can be divided into address for bus
Line, data/address bus, controlling bus etc..It for ease of representing, is only represented in Fig. 8 with a thick line, it is not intended that only one total
Line or a type of bus.
Processor 41 is central processing unit (English：Central Processing Unit, CPU), application-specific integrated circuit
(English：Application-Specific Integrated Circuit, ASIC), field programmable gate array (English：
Field Programmable Gate Array, FPGA) or its any combination.Transceiver 42 is antenna.
Wherein, processor 41 can be used to implement one or more of method as shown in figures 2-6 step.
It can be realized in a manner of hardware with reference to the step of described method of present disclosure or algorithm, also may be used
It is realized in a manner of being to perform software instruction by processor.Software instruction can be made of corresponding software module, software mould
Block can be stored on random access memory (English：Random access memory, RAM), flash memory, read-only memory
(English：Read-only memory, ROM), Erasable Programmable Read Only Memory EPROM (English：erasable programmable
ROM, EPROM), Electrically Erasable Programmable Read-Only Memory (English：Electrically EPROM, EEPROM), it is hard disk, mobile hard
In the storage medium of disk, read-only optical disc (CD-ROM) or any other form well known in the art.A kind of illustrative storage
Medium couples so as to enable a processor to from the read information, and can write to the storage medium and believe to processor
Breath.Certainly, storage medium can also be the component of processor.
Those of ordinary skill in the art are described herein it will be appreciated that in said one or multiple examples
Function can be realized with hardware, software, firmware or their any combination.It when implemented in software, can be by these
Function is stored in computer-readable medium.Storage medium can be any available Jie that universal or special computer can access
Matter.
Above-described specific embodiment has carried out further the purpose, technical solution and advantageous effect of the application
It is described in detail, it should be understood that the foregoing is merely the specific embodiments of the present invention, is not intended to limit the present invention
Protection domain, all any modifications on the basis of the technical solution of the application, made, replacement, improvement etc. should all include
Within the protection domain of the application.
Claims (15)
- A kind of 1. method for frame re-transmission of eating dishes without rice or wine, which is characterized in that the described method includes：First access point receives the re-transmission that sender sends and eats dishes without rice or wine frame, and re-transmission frame of eating dishes without rice or wine includes effective retransmit and marks, institute It is what is sent in retransmission processes to state effective re-transmission mark and be used to indicate the frame of eating dishes without rice or wine that retransmits；First access point processing re-transmission eats dishes without rice or wine frame and is eated dishes without rice or wine frame with obtaining target, and the target is eated dishes without rice or wine the re-transmission mark of frame It is invalid；First access point sends the target and eats dishes without rice or wine frame.
- 2. according to the method described in claim 1, it is characterized in that, the sender be the second access point, connect described first The re-transmission that access point reception sender sends is eated dishes without rice or wine after frame, and the method further includes：First access point determines the neighbours that second access point is first access point.
- 3. according to the method described in claim 2, it is characterized in that, the method further includes：First access point measures the signal strength of second access point, and obtains described the second of the measurement of other access points The signal strength of access point；If second access point that the first access point described in the signal intensity ratio of second access point measured measures The quantity of other big access points of signal strength is less than first threshold, then first access point determines that second access point is The neighbours of first access point.
- 4. method as claimed in any of claims 1 to 3, which is characterized in that the sender is non-access point station Point, the 3rd access point of non-access point station associate, the re-transmission that sender's transmission is received in first access point are empty After mouth frame, the method further includes：First access point measures the signal strength of the 3rd access point；First access point determines that the signal strength of the 3rd access point is more than second threshold.
- 5. method as claimed in any of claims 1 to 3, which is characterized in that the sender is non-access point station Point, the 3rd access point of non-access point station associate, the re-transmission that sender's transmission is received in first access point are empty After mouth frame, the method further includes：First access point determines the neighbour that the 3rd access point is first access point It occupies.
- 6. a kind of access point, which is characterized in that described access point is the first access point, and described access point includes：Receiving module, the re-transmission for receiving sender's transmission are eated dishes without rice or wine frame, and re-transmission frame of eating dishes without rice or wine includes effective retransmit and marks, The effective re-transmission mark is used to indicate the re-transmission and eats dishes without rice or wine frame to send in retransmission processes；Processing module eats dishes without rice or wine frame for handling the re-transmission that the receiving module receives and is eated dishes without rice or wine frame with obtaining target, described Target is eated dishes without rice or wine the re-transmission marked invalid of frame；Sending module is eated dishes without rice or wine frame for sending the processing module through handling the obtained target.
- 7. access point according to claim 6, which is characterized in that the sender be the second access point, described access point It further includes：Determining module, for determining neighbours of second access point for first access point.
- 8. access point according to claim 7, which is characterized in that described access point further includes：Measurement module for measuring the signal strength of second access point, and passes through acquisition module and obtains the survey of other access points The signal strength of second access point of amount；The determining module, if being additionally operable to survey described in the signal intensity ratio for second access point that the measurement module measures The quantity for measuring other access points of the signal strength of second access point of module measurement greatly is less than first threshold, it is determined that institute State the neighbours that the second access point is first access point.
- 9. the access point according to any one in claim 6 to 8, which is characterized in that the sender is non-access point Website, the 3rd access point of non-access point station associate, measurement module, the signal for being additionally operable to measure the 3rd access point are strong Degree；Determining module is additionally operable to determine that the signal strength of the 3rd access point of the measurement module measurement is more than the second threshold Value.
- 10. the access point according to any one in claim 6 to 8, which is characterized in that the sender is non-access point Website, the 3rd access point of non-access point station associate, determining module are additionally operable to determine the 3rd access point for described the The neighbours of one access point.
- 11. a kind of access point, which is characterized in that described access point is the first access point, and described access point includes transceiver and place Device is managed, wherein,The processor, is used for：The re-transmission that sender sends being received with the transceiver to eat dishes without rice or wine frame, re-transmission frame of eating dishes without rice or wine includes effective retransmit and marks, The effective re-transmission mark is used to indicate the re-transmission and eats dishes without rice or wine frame to send in retransmission processes；It handles the re-transmission and eats dishes without rice or wine frame and eated dishes without rice or wine frame with obtaining target, the target is eated dishes without rice or wine the re-transmission marked invalid of frame；The target is sent with the transceiver to eat dishes without rice or wine frame.
- 12. access point according to claim 11, which is characterized in that the sender is the second access point, in the receipts The re-transmission that hair device reception sender sends is eated dishes without rice or wine after frame, the processor, is additionally operable to determine that second access point is The neighbours of first access point.
- 13. access point according to claim 12, which is characterized in that the processor is additionally operable to measure described second and connects The signal strength of access point, and obtain the signal strength of second access point of other access points measurement；The processor, if being additionally operable to what the first access point described in the signal intensity ratio of second access point measured measured The quantity of other big access points of the signal strength of second access point is less than first threshold, it is determined that second access point For the neighbours of first access point.
- 14. the access point according to any one in claim 11 to 13, which is characterized in that the sender is non-access Point website, the 3rd access point of non-access point station associate receive the described heavy of sender's transmission in first access point Biography is eated dishes without rice or wine after frame, the processor, is additionally operable to measure the signal strength of the 3rd access point；The processor is additionally operable to determine that the signal strength of the 3rd access point is more than second threshold.
- 15. the access point according to any one in claim 11 to 13, which is characterized in that the sender is non-access Point website, the 3rd access point of non-access point station associate receive the described heavy of sender's transmission in first access point Biography is eated dishes without rice or wine after frame, the processor, is additionally operable to determine the neighbours that the 3rd access point is first access point.
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| CN108075867B (en) | 2020-09-08 |
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