CN105307283A - Channel conflict treatment method and system - Google Patents
Channel conflict treatment method and system Download PDFInfo
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- CN105307283A CN105307283A CN201510794341.5A CN201510794341A CN105307283A CN 105307283 A CN105307283 A CN 105307283A CN 201510794341 A CN201510794341 A CN 201510794341A CN 105307283 A CN105307283 A CN 105307283A
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- 238000004891 communication Methods 0.000 claims abstract description 99
- 230000006855 networking Effects 0.000 claims description 25
- 238000003672 processing method Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 description 14
- 238000004590 computer program Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/0858—Random access procedures, e.g. with 4-step access with collision treatment collision detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a channel conflict treatment method and system. The channel conflict treatment method comprises: after a wireless network comprising a plurality of subnetworks is built, searching subnetworks of which the working channels are overlapped; acquiring a communication success rate of each overlapped subnetwork; comparing the acquired communication success rates with a preset threshold; and returning the step of searching of the subnetworks of which the working channels are overlapped when the communication success rate is greater than the preset threshold. Therefore, through the adoption of the channel conflict treatment method and system, a subnetwork working channel overlapping condition can be known timely, and re-networking is realized when the overlapped subnetwork communication success rate is smaller than the preset threshold to eliminate the working channel overlapping condition, so that the effective channel conflict treatment method is provided, and the communication reliability is ensured.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of channel confliction processing method and system.
Background technology
Networking technology is one of key technology in micropower wireless communication technology, is the precondition of micro power radio communication real-time performance transfer of data.
The network-building method of common micro power radio communication network is: send networking message by a Centroid, multiplely directly to transmit a reply message to Centroid after receiving this networking message from node, namely Centroid confirms networking success after receiving this reply message, each Centroid and some by its control can form a subnet from node, multiple subnet can form micropower wireless network, adopts micropower wireless network to carry out radio communication to save frequency resource.
Generally Centroid can be selected to disturb less channel to be assigned as working channel, communicates in this working channel with from node.But Centroid can only judge the working condition of channel around in this case, for network edge, especially in cellular network with other subnet coinciding edges from the channel disturbance situation None-identified around node, likely in the process of networking, occur the situation that two subnet working channels overlap, the reliability of the subnetwork communicating causing working channel to overlap reduces.
Summary of the invention
For this reason, technical problem to be solved by this invention is that prior art easily occurs the situation that two subnet working channels overlap in networking process, and the reliability communicated is reduced.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
The invention provides a kind of channel confliction processing method, comprise the steps:
Set up the wireless network be made up of multiple subnet;
There is the subnet overlapped in search work channel;
Obtain the communication success rate of the subnet of each coincidence;
Obtained communication success rate and pre-determined threshold are compared;
When the communication success rate obtained is greater than pre-determined threshold, be back to the step that the subnet overlapped occurs described search work channel.
Channel confliction processing method of the present invention, also comprises:
When the communication success rate obtained is less than pre-determined threshold, be back to the step of the wireless network that described foundation is made up of multiple subnet.
Channel confliction processing method of the present invention, the subnet that described search work channel occurs to overlap comprises:
Obtain the communication data of the working channel from the place subnet that node is intercepted of described subnet;
The communication data that the Centroid detecting the subnet whether comprised beyond described subnet in described communication data sends;
When the communication data that the Centroid comprising the subnet beyond described subnet sends, the described subnet from node place and the subnet at the Centroid place sending described communication data are labeled as the subnet that working channel occurs to overlap.
Channel confliction processing method of the present invention, after judging that working channel overlaps, also comprises:
Recording and sending channel confliction event.
Present invention also offers a kind of channel confliction treatment system, comprising:
Networking unit, for setting up the wireless network be made up of multiple subnet;
, there is the subnet overlapped for search work channel in search unit;
Success rate acquiring unit, for obtaining the communication success rate of the subnet of each coincidence;
Comparing unit, for obtained communication success rate and pre-determined threshold being compared, when the communication success rate obtained is greater than pre-determined threshold, restarts described search unit.
Channel confliction treatment system of the present invention, when described comparing unit is also for being less than pre-determined threshold when the communication success rate obtained, restarts described networking unit.
Channel confliction treatment system of the present invention, described search unit comprises:
Intercept subelement, for obtaining the communication data of the working channel from the place subnet that node is intercepted of described subnet;
Detection sub-unit, the communication data that the Centroid for detecting the subnet whether comprised beyond described subnet in described communication data sends;
Registration mark subelement, for send when the Centroid comprising the subnet beyond described subnet communication data time, the described subnet from node place and the subnet at Centroid place that sends described communication data are labeled as the subnet that working channel occurs to overlap.
Channel confliction treatment system of the present invention, described search unit also comprises:
Record sends subelement, for recording and sending channel confliction event.
Technique scheme of the present invention has the following advantages compared to existing technology:
The invention provides a kind of channel confliction processing method and system, after setting up the wireless network be made up of multiple subnet, there is the subnet overlapped in search work channel, obtain the communication success rate of the subnet of each coincidence again, and obtained communication success rate and pre-determined threshold are compared, when the communication success rate obtained is greater than pre-determined threshold, be back to the step that the subnet overlapped occurs described search work channel.Therefore, channel confliction processing method of the present invention and system, can know that situation about overlapping occurs subnet working channel in time, and in the communication success rate of subnet overlapped lower than networking again during pre-determined threshold, eliminate the situation that working channel overlaps, provide a kind of effective channel confliction processing method, ensure that the reliability of communication.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the flow chart of channel confliction processing method of the present invention;
Fig. 2 is the particular flow sheet that in channel confliction processing method of the present invention, the subnet overlapped occurs search work channel;
Fig. 3 is micropower wireless network topology figure in channel confliction processing method of the present invention;
Fig. 4 is the structured flowchart of channel confliction processing method of the present invention.
In figure, Reference numeral is expressed as: 1-networking unit, 2-search unit, 3-acquiring unit, 4-comparing unit, and 21-intercepts subelement, and 22-retrieves subelement, 23-registration mark subelement, and 24-record sends subelement.
Embodiment
Embodiment 1
Present embodiments provide a kind of channel confliction processing method, as shown in Figure 1, comprise the steps:
S1. the wireless network be made up of multiple subnet is set up.
S2. there is the subnet of coincidence in search work channel.
S3. the communication success rate of the subnet of each coincidence is obtained.
S4. obtained communication success rate and pre-determined threshold are compared, when the communication success rate obtained is less than pre-determined threshold, be back to described step S1, when the communication success rate obtained is greater than pre-determined threshold, be back to described step S2.
Particularly, in step S1, wireless network can be micropower wireless network, in networking process, first send networking message by Centroid, multiplely directly to transmit a reply message to Centroid after receiving this networking message from node, Centroid is after receiving this reply message, can set up this Centroid with reply message from internodal subnet, the less channel allocation of interference can be working channel by Centroid under normal circumstances, with communicating from node in subnet, multiple Centroid can set up multiple subnet in order to form micropower wireless network (cellular network), the wireless network that multiple subnet is set up can save frequency resource.
In step S2, because in the process of multiple subnet composition wireless network, the network edge of the subnet that is connected likely can overlap, there is situation about overlapping by causing the working channel of two subnets in this, subnetwork communicating reliability is reduced.The subnet overlapped is there is in step S2 by search work channel, the very first time that at adjoining subnetworks coincidence situation can occur knows this situation, carry out channel confliction process in time lay a good foundation for follow-up, the subnet avoiding coincidence is in the generation of the situation of communication reliability difference for a long time.
If search the subnet that working channel occurs to overlap, then enter step S3 to obtain the communications status that the subnet overlapped occurs, in the present embodiment, characterized the communications status of subnet by the communication success rate of subnet.Optionally, Centroid can be added up according to the copy reading from node in subnet, obtains the communication success rate of subnet.Communication success rate is high, then illustrate that the communications status of subnet is good, communication success rate is low, then illustrate that the communications status of subnet is poor, unstable, very convenient.
In step S4, pre-determined threshold can be set to 90%, by the communication success rate of acquisition and pre-determined threshold being compared, judge that channel the subnet of coincidence occurs the need of networking again, if the communication success rate obtained is less than pre-determined threshold, then can return step S1 again, abandon current operating channel and re-start networking, if the communication success rate obtained is greater than pre-determined threshold, then judge without the need to networking again, return step S2, whether real-time search occurs that the subnet overlapped occurs working channel.Even if also namely there is the subnet occurring to overlap, the subnetwork communicating overlapped if occur in order, also current working channel communication can be kept, save the time of channel restructuring, improve communication efficiency, only when the subnetwork communicating situation occurring to overlap is poor, just can judge to need networking again, ensure that the stability of subnetwork communicating.
Preferably, as shown in Figure 2, described step S2 can comprise:
S21. the communication data of the working channel from the place subnet that node is intercepted of described subnet is obtained;
S22. the communication data that the Centroid detecting the subnet whether comprised beyond described subnet in described communication data sends;
S23., when the communication data that the Centroid comprising the subnet beyond described subnet sends, the described subnet from node place and the subnet at the Centroid place sending described communication data are labeled as the subnet that working channel occurs to overlap.
Particularly, if because adjoining subnetworks overlaps, the communication data that the Centroid that can only listen to its place subnet from node then in same subnet sends, if and adjoining subnetworks overlaps, then be in the data that then can listen to the Centroid transmission of adjoining subnetworks from node of overlapping region, therefore, once the communication data that the Centroid of the subnet comprised beyond described subnet from the communication data of node listens sends, can judge that the working channel between subnet has overlapped, very convenient.
Preferably, after described step S23, can also comprise:
Recording and sending channel confliction event.
Particularly, when from node listens to the Centroid of subnet that comprises beyond described subnet of communication data send communication data time, can record from node and channel confliction event occurs, and report the Centroid of its place subnet, after recording and sending channel confliction event, can enter step S3-S6, timely processing channel collision event, response rapidly.Can utilize CSMA mechanism that channel confliction event is reported to Centroid by active reporting mode from the mode of node conflict host node channel confliction, also can comprise event form notice Centroid by extend communication protocols territory, can make Centroid promptly and accurately know that working channel occurs to be overlapped this situation.
For the ease of better such scheme, the present embodiment additionally provides a concrete case study on implementation, the micropower wireless network topology figure in present case as shown in Figure 3, comprise node centered by A subnet A and centered by B the subnet B of node; Can be seen by Fig. 3, subnet A and subnet B there occurs coincidence, the part likely overlapped by working channel from node A7 being in the subnet A of overlapping region listens to the communication data that Centroid B sends, and the part also likely overlapped by working channel from Node B 7 being in like manner in the subnet B of overlapping region listens to the communication data that Centroid A sends.Such as listen to from node A7 the communication data that Centroid B sends, then writing task channel confliction event, and to Centroid A transmitting channel collision event, notice Centroid A channel confliction, from node A7 when working channel network relative free, utilize CSMA mechanism that channel confliction event is reported to Centroid A by active reporting mode; Or when Centroid A communicates with, comprise event form notice Centroid A by extend communication protocols information field; After Centroid A receives the channel confliction event reported from node A7, according to adding up from node copy reading in network, obtain the communication success rate of subnet A, judge whether to need networking again.If the letter success rate thresholding preset is 90%, is then less than 90% in the communication success rate of subnet A and networking is again carried out to it, do not re-use current working channel.After network re-establishes, Centroid and child node still perform aforesaid operations all the time, to ensure that each subnet working channel does not conflict.
Channel confliction processing method described in the present embodiment, can know that situation about overlapping occurs subnet working channel in time, and in the communication success rate of subnet overlapped lower than networking again during pre-determined threshold, eliminate the situation that working channel overlaps, provide a kind of effective channel confliction processing method, ensure that the reliability of communication.
Embodiment 2
Present embodiments provide a kind of channel confliction treatment system, as shown in Figure 4, comprising: networking unit 1, search unit 2, success rate acquiring unit 3, comparing unit 4; Wherein networking unit 1, for setting up the wireless network be made up of multiple subnet, wireless network can be micropower wireless network, can save frequency resource; , there is the subnet overlapped for search work channel in search unit 2; Success rate acquiring unit 3, for obtaining the communication success rate of the subnet of each coincidence; Comparing unit 4, for obtained communication success rate and pre-determined threshold being compared, when the communication success rate obtained is less than pre-determined threshold, restarting described networking unit 1, when the communication success rate obtained is greater than pre-determined threshold, restarting described search unit 2.
Preferably, described search unit 2 can comprise:
Intercept subelement 21, for obtaining the communication data of the working channel from the place subnet that node is intercepted of described subnet;
Detection sub-unit 22, the communication data that the Centroid for detecting the subnet whether comprised beyond described subnet in described communication data sends;
Registration mark subelement 23, for send when the Centroid comprising the subnet beyond described subnet communication data time, the described subnet from node place and the subnet at Centroid place that sends described communication data are labeled as the subnet that working channel occurs to overlap.。
Preferably, described search unit 2 can also comprise:
Record sends subelement 24, for recording and sending channel confliction event.
Channel confliction treatment system described in the present embodiment, can know that situation about overlapping occurs subnet working channel in time, and in the communication success rate of subnet overlapped lower than networking again during pre-determined threshold, eliminate the situation that working channel overlaps, provide a kind of effective channel confliction processing method, ensure that the reliability of communication.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Claims (8)
1. a channel confliction processing method, is characterized in that, comprises the steps:
Set up the wireless network be made up of multiple subnet;
There is the subnet overlapped in search work channel;
Obtain the communication success rate of the subnet of each coincidence;
Obtained communication success rate and pre-determined threshold are compared;
When the communication success rate obtained is greater than pre-determined threshold, be back to the step that the subnet overlapped occurs described search work channel.
2. channel confliction processing method according to claim 1, is characterized in that, also comprise:
When the communication success rate obtained is less than pre-determined threshold, be back to the step of the wireless network that described foundation is made up of multiple subnet.
3. channel confliction processing method according to claim 1 and 2, is characterized in that, the subnet that described search work channel occurs to overlap comprises:
Obtain the communication data of the working channel from the place subnet that node is intercepted of described subnet;
The communication data that the Centroid detecting the subnet whether comprised beyond described subnet in described communication data sends;
When the communication data that the Centroid comprising the subnet beyond described subnet sends, the described subnet from node place and the subnet at the Centroid place sending described communication data are labeled as the subnet that working channel occurs to overlap.
4. channel confliction processing method according to claim 3, is characterized in that, after judging that working channel overlaps, also comprises:
Recording and sending channel confliction event.
5. a channel confliction treatment system, is characterized in that, comprising:
Networking unit (1), for setting up the wireless network be made up of multiple subnet;
, there is the subnet overlapped for search work channel in search unit (2);
Success rate acquiring unit (3), for obtaining the communication success rate of the subnet of each coincidence;
Comparing unit (4), for obtained communication success rate and pre-determined threshold being compared, when the communication success rate obtained is greater than pre-determined threshold, restarts described search unit (2).
6. channel confliction treatment system according to claim 5, is characterized in that, when described comparing unit (4) is also for being less than pre-determined threshold when the communication success rate obtained, restarts described networking unit (1).
7. the channel confliction treatment system according to claim 5 or 6, is characterized in that, described search unit (2) comprising:
Intercept subelement (21), for obtaining the communication data of the working channel from the place subnet that node is intercepted of described subnet;
Detection sub-unit (22), the communication data that the Centroid for detecting the subnet whether comprised beyond described subnet in described communication data sends;
Registration mark subelement (23), for send when the Centroid comprising the subnet beyond described subnet communication data time, the described subnet from node place and the subnet at Centroid place that sends described communication data are labeled as the subnet that working channel occurs to overlap.
8. channel confliction treatment system according to claim 7, is characterized in that, described search unit (2) also comprises:
Record sends subelement (24), for recording and sending channel confliction event.
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| CN201510794341.5A CN105307283B (en) | 2015-03-25 | 2015-03-25 | A kind of channel confliction processing method and system |
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| CN201510132803.7A CN104703290B (en) | 2015-03-25 | 2015-03-25 | A kind of channel confliction processing method and system |
| CN201510794341.5A CN105307283B (en) | 2015-03-25 | 2015-03-25 | A kind of channel confliction processing method and system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1698314A (en) * | 2003-01-07 | 2005-11-16 | 索尼株式会社 | Radio communication device, radio communication system, and radio communication method |
| US20100142468A1 (en) * | 2008-12-10 | 2010-06-10 | Electronis And Telecommunications Research Institute | Apparatus and method for supporting access in wireless communication system |
| US20100142495A1 (en) * | 2008-12-08 | 2010-06-10 | Guoqing Li | Apparatus and method of communication in a wireless network |
| CN102307394A (en) * | 2011-08-12 | 2012-01-04 | 赵旸 | Method for preventing wireless communication network channel contention conflict and device thereof |
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2015
- 2015-03-25 CN CN201510794341.5A patent/CN105307283B/en active Active
- 2015-03-25 CN CN201510132803.7A patent/CN104703290B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1698314A (en) * | 2003-01-07 | 2005-11-16 | 索尼株式会社 | Radio communication device, radio communication system, and radio communication method |
| US20100142495A1 (en) * | 2008-12-08 | 2010-06-10 | Guoqing Li | Apparatus and method of communication in a wireless network |
| US20100142468A1 (en) * | 2008-12-10 | 2010-06-10 | Electronis And Telecommunications Research Institute | Apparatus and method for supporting access in wireless communication system |
| CN102307394A (en) * | 2011-08-12 | 2012-01-04 | 赵旸 | Method for preventing wireless communication network channel contention conflict and device thereof |
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| CN104703290A (en) | 2015-06-10 |
| CN105307283B (en) | 2018-05-15 |
| CN104703290B (en) | 2018-01-16 |
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