CN106535262B - A kind of dynamic frequency method based on MCS value - Google Patents
A kind of dynamic frequency method based on MCS value Download PDFInfo
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- CN106535262B CN106535262B CN201611009630.0A CN201611009630A CN106535262B CN 106535262 B CN106535262 B CN 106535262B CN 201611009630 A CN201611009630 A CN 201611009630A CN 106535262 B CN106535262 B CN 106535262B
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- frequency
- access point
- wireless access
- client
- frequency modulation
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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
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/06—Reselecting a communication resource in the serving access point
Abstract
The present invention discloses a kind of dynamic frequency method based on MCS value, including the following steps: wireless access point configures frequency modulation list and the threshold values of MCS；Frequency modulation list is sent to client by wireless access point, and client updates oneself local frequency modulation list after receiving frequency modulation list；Wireless access point detects and counts MCS value；Wireless access point sends the client of frequency modulation instruction notification connection；After client receives frequency modulation instruction, ACK message is sent to wireless access point immediately, and frequency point is automatically switched to the next item down of frequency modulation list；Wireless access point and client are switched to new working frequency points simultaneously；Wireless access point sends heartbeat detection instruction to client.MCS value by being carried out condition whether frequency hopping by the present invention as wireless access point, it ensure that wireless system is able to satisfy client to handling capacity and bandwidth requirement in new frequency point, without relying on specific hardware detection system, changeable network environment can be independently coped with, and makes accurate scheduling by the quality of communication network.
Description
Technical field
The present invention relates to wireless communication field more particularly to a kind of dynamic frequency methods based on MCS value.
Background technique
With the development of wireless network, stablize, the wireless network communication environment of safety becomes particularly important.It is wirelessly communicating
In, wireless telecommunications system is one of an important factor for influencing wireless network communication environment by the signal interference in working frequency range.Nothing
Line communication news equipment works in the environment of serious interference, can generate a large amount of information re-transmission or packet loss, even result in business
It is disconnected, it causes communication quality difference or can not communicate.With the continuous development of wireless communication technology, radio spectrum resources Opening,
And the high speed development of Internet of Things, use the quantity grow exponentially of the equipment of wireless telecommunications.Under this situation, channel radio
Letter news equipment finds the fixation frequency point that can be used for stablizing communication, and finds the wireless communication environments that can ensure service bandwidth requirement
Just become to be increasingly difficult to.More and more network users require wireless telecom equipment to have frequency modulation function, it is desirable that equipment by
It can switch to clean frequency point when interference, guarantee communication quality.
It currently, industry also has relevant frequency hopping and product, but is realized by hardware, it is at high cost, it relies on special
Determine hardware detection system.Frequency hopping is triggered separately through detection signal interference, not can guarantee quality of service after frequency hopping.
For example, the patent application document that publication No. is CN105722099A discloses a kind of automatic tune based on interference signal
Frequency scheme, to realize the automatic frequency adjustment function before access point and access point waiting, however, the patent is only using interference signal as tune
Frequency judges parameter, can not independently cope with changeable network environment, and it is even more impossible to make more accurate tune by the quality of communication network
Degree.
In addition, the patent application document that publication No. is CN105578483A also discloses one kind based on wireless sensor network
Dynamic frequency method, however, the patent rely on specific hardware detection system, need additional sensor and control centre.
Therefore, the prior art is defective, needs to improve.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of dynamic frequency method based on MCS value.
Technical scheme is as follows:
A kind of dynamic frequency method based on MCS value, including the following steps:
Step 1: wireless access point configures frequency modulation list and the threshold values of MCS, and the frequency modulation list contains can be with frequency modulation
Frequency point；The threshold values of the MCS is used to judge whether to frequency modulation；
Step 2: frequency modulation list is sent to client by wireless access point, and client updates oneself after receiving frequency modulation list
Local frequency modulation list；
Step 3: wireless access point detects and counts MCS value, and weights the average MCS value calculated in some cycles；If flat
Equal MCS value meets threshold requirements, then performs the next step；It is unsatisfactory for, executes step 7；
Step 4: wireless access point sends the client of frequency modulation instruction notification connection；
Step 5: after client receives frequency modulation instruction, ACK message is sent to wireless access point immediately, and frequency point is automatic
It is switched to the next item down of frequency modulation list；
Step 6: wireless access point and client are switched to new working frequency points simultaneously, if new frequency point is default frequency point,
Meeting suspend mode certain time keeps then returning to step 3 with after client frequency modulation real-time synchronization, otherwise after new working frequency points are stablized,
Then return to step 3；
Step 7: wireless access point sends heartbeat detection instruction to client, if access point does not receive client for a long time
The response heartbeat confirmation message at end, then detect whether to have traversed frequency modulation list, is to then follow the steps eight, otherwise returns to step 5；
If access point receives the response heartbeat confirmation message of client in time, step 3 is returned to, working frequency points do not switch, network
Communication keeps stablizing；
Step 8: wireless access point frequency point setting is default value, resets frequency modulation list head, and execute step 6.
Further, the mode of described access point connection client can be through frequency spectrum distribution server or network management platform
Connection.
Further, access point configuration frequency modulation list mode can be user and directly input in wireless access point administration interface
Working frequency points are also possible to the frequency point that wireless access point automatically selects frequency modulation according to the frequency point that the chip of itself is supported.
Further, the mode of the configuration of the MCS value compared includes but are not limited to user in wireless access point management field
The data that face directly inputs.
Further, wireless access point can directly transmit frequency modulation instruction, can also be by frequency spectrum distribution server or network management
Platform third party device etc. carrys out the tune instruction that transfer wireless access point is sent to client.
Further, the default frequency point refers to the frequency point that wireless access point is most started to work, which is wireless access
The frequency point for meeting client traffic data requirements that point selects during installation, the standard for judging whether there is connection is to see client
Heartbeat detection instruction can be received.
Using the above scheme, the dynamic frequency method based on MCS value that the present invention provides a kind of, passes through the MCS that will test
It is worth condition whether carrying out frequency hopping as wireless access point, ensure that wireless system is able to satisfy client to handling up in new frequency point
Amount and bandwidth requirement, can be applied to the hardware platforms such as high pass, MTK, Rallink.The present invention is without relying on specific hardware detection
System can independently cope with changeable network environment without additional sensor and control centre, and by the matter of communication network
Amount makes more accurate scheduling.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Wireless access point is also referred to as wireless aps, it is the access point of a wireless network, the switched wireless for wireless network
The core of machine and wireless network mainly plays the part of wireless stations and wired local area network in medium access control layer MAC
Bridge.Client can access wireless access point by webpage, network management platform and frequency spectrum distribution server, and run wherein
Program, without separately filling any software.Wireless access point is mainly used for inside broadband home, inside buildings and garden, typical
Distance covers tens meters to rice up to a hundred, and major technique is 802.11 series at present.
802.11 agreements are a wireless transmission standards agreements of Wi-Fi Alliance, it is possible to provide most sensitive to bandwidth answers
With the support of required rate, range and reliability.The configuration of radio frequency rate is realized by MCS index value in 802.11 agreements.
MCS value is the direct indicator of current radio transmission data capability in 802.11 protocol family standards, does frequency modulation foundation according to MCS value
It can effectively ensure wireless system work in the handling capacity and bandwidth requirement of new frequency point.
Based on this, after the present invention provides a kind of dynamic frequency method based on MCS value, including frequency modulation function is opened, wirelessly
Access point can broadcast available frequency point list to the client of connection；Meeting dynamic monitoring MCS value simultaneously, if MCS value is (low when deteriorating
In the threshold value of user configuration), wireless access point sends frequency modulation and instructs to client, and wireless access point receives client confirmation and disappears
After breath, wireless access point and client can jump to new frequency point simultaneously.System is after new frequency point the operation is stable, if meeting MCS
Value requires, and system can run on the frequency point；Otherwise it will continue to frequency modulation；Include the following steps:
Step 1: wireless access point configures frequency modulation list and the threshold values of MCS, and the frequency modulation list contains can be with frequency modulation
Frequency point；The threshold values of the MCS is used to judge whether to frequency modulation.
Step 2: frequency modulation list is sent to client by wireless access point, and client updates oneself after receiving frequency modulation list
Local frequency modulation list；The frequency point of hardware supported is encapsulated into ETH message by broadcast mode and is sent to visitor by wireless access point
Family end；Client receives this type message, can extract frequency modulation list and be stored in local.
Step 3: after opening frequency modulation function, wireless access point periodically acquisition MCS value, and weight and calculate in some cycles
Average MCS value；Within certain continuous period, if the average MCS value being calculated is lower than the MCS threshold values of user configuration,
Then perform the next step；If being higher than the MCS value of user configuration, step 7 is executed.
Step 4: wireless access point sends the client of frequency modulation instruction notification connection；Wireless access point is by referring to frequency modulation
Order is encapsulated into ETH message, is sent to the client of connection.
Step 5: after client receives message, carrying out packet parsing, after parsing frequency modulation instruction, immediately to wireless access
Point sends ACK message.Then, client can be switched to next frequency point in frequency modulation list.
Step 6: it after wireless access point receives the ACK confirmation message of client, can also be switched to next in frequency modulation list
Frequency point can be used, at this moment system completes frequency handover, works in new frequency point.If new frequency point is default frequency point, can suspend mode one
Otherwise etc. it fixes time after holding and client frequency modulation real-time synchronization, returns to step 3, systems are under new frequency point after the operation is stable, directly
Take back step 3.
Step 7: wireless access point sends heartbeat detection instruction to client, is to be sent to visitor by the ETH message of encapsulation
Family end；Client receive message identify heartbeat instruction after, can immediately to access point respond heartbeat confirmation message；If access point is long
Time does not receive the heartbeat confirmation message of client response, then detects whether to have traversed frequency modulation list, be to then follow the steps eight,
Otherwise step 5 is returned to；If access point receives the heartbeat confirmation message of client end response in time, step 3, working frequency points are returned to
It does not switch, network communication keeps stablizing.
Step 8: after completing a wheel frequency modulation, if frequency point is all unable to satisfy requirement, wireless access point frequency point setting is silent
Recognize value, starts a new wheel frequency modulation, and execute step 6.
It is noted that wireless access point configuration frequency modulation list mode can be user in wireless access point administration interface
Working frequency points are directly inputted, the frequency that wireless access point automatically selects frequency modulation according to the frequency point that the chip of itself is supported is also possible to
Point.The mode of the configuration of the MCS value compared includes but are not limited to the number that user directly inputs in wireless access point administration interface
According to.Wireless access point can directly transmit frequency modulation instruction, can also be by frequency spectrum distribution server or network management platform third party device
It is instructed etc. the tune that transfer wireless access point is sent to client is carried out.The default frequency point refers to what wireless access point was most started to work
Frequency point, the frequency point are the frequency points for meeting client traffic data requirements that wireless access point selects during installation, are judged whether
The standard of connection is to see that client can receive heartbeat detection instruction.
In conclusion the present invention provides a kind of dynamic frequency method based on MCS value, by the MCS value that will test come
Condition whether frequency hopping is carried out as wireless access point, ensure that wireless system new frequency point be able to satisfy client to handling capacity and
Bandwidth requirement can be applied to the hardware platforms such as high pass, MTK, Rallink.The present invention is not necessarily to rely on specific hardware detection system,
Without additional sensor and control centre, changeable network environment can be independently coped with, and is done by the quality of communication network
More accurate scheduling out.
The above is merely preferred embodiments of the present invention, be not intended to restrict the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (5)
1. a kind of dynamic frequency method based on MCS value, including the following steps:
Step 1: wireless access point configures frequency modulation list and the threshold values of MCS, and the frequency modulation list contains can be with the frequency of frequency modulation
Point；The threshold values of the MCS is used to judge whether to frequency modulation；
Step 2: frequency modulation list is sent to client by wireless access point, and client updates oneself locally after receiving frequency modulation list
Frequency modulation list；
Step 3: wireless access point detects and counts MCS value, and weights the average MCS value calculated in some cycles；If average
MCS value meets threshold requirements, then performs the next step；It is unsatisfactory for, executes step 7；
Step 4: wireless access point sends the client of frequency modulation instruction notification connection；
Step 5: after client receives frequency modulation instruction, ACK message is sent to wireless access point immediately, and frequency point is automatically switched
To the next item down of frequency modulation list；
Step 6: wireless access point and client are switched to new working frequency points simultaneously, after new working frequency points are stablized, then return to step
Rapid three；
Step 7: wireless access point sends heartbeat detection instruction to client, if client cannot respond to heartbeat detection for a long time
Instruction, then detect whether to have traversed frequency modulation list, be to then follow the steps eight, otherwise return to step 5；If client timely responds to
Heartbeat detection instruction, then return to step 3, and working frequency points do not switch, and network communication keeps stablizing；
Step 8: wireless access point setting default frequency point, and frequency modulation list is reset, the default frequency point refers to wireless access point most
The frequency point of start-up operation, the frequency point are the frequencies for meeting client traffic data requirements that wireless access point selects during installation
Point, the standard for judging whether there is connection are to see that client can receive heartbeat detection instruction.
2. the dynamic frequency method according to claim 1 based on MCS value, which is characterized in that the wireless access point connects
The mode for connecing client is connected by frequency spectrum distribution server or network management platform.
3. the dynamic frequency method according to claim 1 based on MCS value, which is characterized in that wireless access point configuration is adjusted
Frequency list mode is that user in wireless access point administration interface directly inputs working frequency points or wireless access point according to itself
The frequency point that chip is supported automatically selects the frequency point of frequency modulation.
4. the dynamic frequency method according to claim 1 based on MCS value, which is characterized in that the configuration of the MCS value compared
Mode be the data that are directly inputted in wireless access point administration interface of user.
5. the dynamic frequency method according to claim 1 based on MCS value, which is characterized in that wireless access point is directly sent out
It send frequency modulation to instruct, or is instructed by frequency spectrum distribution server or network management platform come the tune that transfer wireless access point is sent to client.
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| CN201611009630.0A CN106535262B (en) | 2016-11-16 | 2016-11-16 | A kind of dynamic frequency method based on MCS value |
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| CN201611009630.0A CN106535262B (en) | 2016-11-16 | 2016-11-16 | A kind of dynamic frequency method based on MCS value |
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| JP3860556B2 (en) * | 2003-04-04 | 2006-12-20 | 松下電器産業株式会社 | Base station apparatus and communication method |
| US20050025040A1 (en) * | 2003-07-29 | 2005-02-03 | Nokia Corporation | Method and apparatus providing adaptive learning in an orthogonal frequency division multiplex communication system |
| CN1938968A (en) * | 2004-03-30 | 2007-03-28 | 松下电器产业株式会社 | Base station apparatus, mobile station apparatus, and data channel scheduling method |
| EP2958388B1 (en) * | 2013-03-12 | 2017-09-20 | Huawei Technologies Co., Ltd. | Method and device for scheduling frequency band resource |
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|---|---|---|---|---|
| CN102196452A (en) * | 2010-03-11 | 2011-09-21 | 中国移动通信集团公司 | Frequency switching method and equipment |
| CN102802160A (en) * | 2012-06-27 | 2012-11-28 | 华为技术有限公司 | Bandwidth adjusting method between macro cell and micro cell and base station |
| CN103684555A (en) * | 2013-12-11 | 2014-03-26 | 北京北方烽火科技有限公司 | Switching method and device in uplink channel MIMO modes |
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