CN102143496A - Method and equipment for adjusting channels in centralized mesh network - Google Patents
Method and equipment for adjusting channels in centralized mesh network Download PDFInfo
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- CN102143496A CN102143496A CN2010101044687A CN201010104468A CN102143496A CN 102143496 A CN102143496 A CN 102143496A CN 2010101044687 A CN2010101044687 A CN 2010101044687A CN 201010104468 A CN201010104468 A CN 201010104468A CN 102143496 A CN102143496 A CN 102143496A
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Abstract
The invention provides a method and equipment for switching channels in a centralized mesh network. The method comprises the following steps that: A, an access controller (AC) divides the centralized mesh network into more than one mesh domain according to radio frequency information reported by mesh equipment in the centralized mesh network; and B, for each divided mesh domain, the AC decides an optimal channel corresponding to the mesh domain, and triggers the mesh equipment to which the radio frequency in the mesh domain belongs to implement channel switching when the channel in which the radio frequency in the mesh domain works currently is not the decided optimal channel. By the invention, the stability and communication quality of the mesh network can be improved.
Description
Technical field
The present invention relates to network management technology, channel adjusting method and equipment in the particularly centralized Mesh network.
Background technology
Wireless Mesh netword can specifically be divided into distributed Mesh network and centralized Mesh network according to networking mode, wherein, in centralized Mesh network, manage the radio frequency (R:Radio) of all Mesh equipment such as Mesh node (MP:Mesh Point) and/or Mesh door node (MPP:Mesh Portal Point) concentratedly by wireless controller (AC:AccessController), and for the radio frequency of each the Mesh equipment preferred channels of making a strategic decision out, specifically referring to flow process shown in Figure 1.
Referring to Fig. 1, Fig. 1 is the flow chart of channel adjustment in the existing centralized Mesh network.As shown in Figure 1, this flow process can may further comprise the steps:
To receive the network equipment reporting radio frequency resource information as early as possible that reports order in order making, can to make the response time that reports order to carry smaller in the prior art.
Here, the radio frequency resource information that Mesh equipment reports in the step 102 is interference value, the error rate of the available channel of channel, support of radio frequency work at present and each available channel etc.
Here, AC is earlier according to the interference value of each available channel in the radio frequency resource information, the priority that error rate calculation goes out each available channel, and the channel that will have limit priority is defined as the preferred channels of this radio frequency.
Be to guarantee the stable and reliable of Mesh network, in this step 106, Mesh equipment further with set up other each Mesh equipment that Mesh is connected (Mesh-link) and carry out channel and consult so that communicate between this network equipment and other each network equipments.
From the described flow process of Fig. 1 as can be seen, radio frequency at a Mesh equipment, the radio frequency resource information that AC just reports according to this Mesh equipment is this radio frequency preferred channels of making a strategic decision out, irrelevant with the radio frequency resource information that other Mesh equipment report, this obviously lacks the overall situation sight that naturalization is planned as a whole, influence the channel adjustment of whole M esh network, also reduced Mesh stability of network and communication quality.
Summary of the invention
The invention provides channel adjusting method and equipment in the centralized Mesh network, to improve Mesh stability of network and communication quality.
Channel switching method in a kind of centralized Mesh network, this method may further comprise the steps:
A, the radio-frequency information that AC reports according to Mesh equipment in the centralized Mesh network is divided into an above Mesh territory with described centralized Mesh network;
B, at each Mesh territory of dividing, make a strategic decision out the preferred channels of this Mesh territory correspondence of AC, and the channel of the radio frequency work at present in this Mesh territory is during for the preferred channels of making a strategic decision out, the Mesh equipment under the radio frequency in this Mesh territory of triggering is carried out channel and is switched.
A kind of AC, this AC are in the centralized Mesh network, and described AC comprises:
Division unit is used for the radio-frequency information that reports according to centralized Mesh network Mesh equipment, and described centralized Mesh network is divided into an above Mesh territory;
Decision package, be used at each Mesh territory of dividing, the preferred channels of this Mesh territory correspondence of making a strategic decision out, and the channel of the radio frequency work at present in this Mesh territory is during for the preferred channels of making a strategic decision out, the Mesh equipment under the radio frequency in this Mesh territory of triggering is carried out channel and is switched.
As can be seen from the above technical solutions, among the present invention, AC is divided into an above Mesh territory with described centralized Mesh network; At each Mesh territory of dividing, make a strategic decision out the preferred channels of this Mesh territory correspondence of AC, and the channel of the radio frequency work at present in this Mesh territory is during for the preferred channels of making a strategic decision out, the Mesh equipment under the radio frequency in this Mesh territory of triggering is carried out channel and is switched.That is to say, the present invention is a unit decision-making preferred channels with the Mesh territory, wherein, comprise 1 above radio frequency in this Mesh territory, by the radio frequency in the Mesh territory being unified the decision-making preferred channels, so, avoided prior art, improved Mesh stability of network and communication quality at the radio frequency of the Mesh equipment defective that preferred channels brings of making a strategic decision out separately.
Description of drawings
Fig. 1 is the flow chart of channel adjustment in the existing centralized Mesh network;
The basic flow sheet that Fig. 2 provides for the embodiment of the invention;
The detail flowchart that Fig. 3 provides for the embodiment of the invention;
Fig. 4 a is the centralized Mesh network diagram that the embodiment of the invention is used;
Fig. 4 b is centralized another schematic diagram of Mesh network that the embodiment of the invention is used;
The structure chart of the AC that Fig. 5 provides for the embodiment of the invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
The method that the embodiment of the invention provides mainly comprises flow process as shown in Figure 2.This method is applied in the centralized Mesh network, and as shown in Figure 2, this flow process can may further comprise the steps:
So far, realized the basic procedure that the embodiment of the invention provides.
Above-mentioned steps 201 is before carrying out, and AC can receive the radio-frequency information that Mesh equipment regularly reports in the centralized Mesh network, and according to the content difference that radio-frequency information carries, the concrete operations that step 201 is carried out are also different.Such as: if the radio-frequency information that reports of Mesh equipment has carried the wireless mode that this Mesh equipment reports the employed radio frequency of this radio-frequency information and this radio frequency correspondence, then AC can carry out division operation according to the principle that the identical radio frequency of wireless mode belong to same Mesh territory; Perhaps, if the radio-frequency information that Mesh equipment reports has carried this Mesh equipment and reported the radio frequency of this radio-frequency information use and other radio frequencies that the Mesh-link under this radio frequency comprises, then AC carries out division operation according to the principle that each radio frequency on the same Mesh-link belongs to same Mesh territory.
In order to make the purpose, technical solutions and advantages of the present invention clearer, to divide the Mesh network be that example describes the present invention to the principle that belongs to same Mesh territory according to the radio frequency of same Mesh-link with AC below.
Referring to Fig. 3, the detail flowchart that Fig. 3 provides for the embodiment of the invention.When the centralized Mesh network that the embodiment of the invention is used carries out networking, need set up the Mesh-link of radio frequency, so that communicate between the Mesh equipment.Shown in Fig. 4 a, when networking is carried out at the centralized Mesh networking shown in Fig. 4 a, can set up three Mesh-link according to actual conditions, be specially the Mesh-link (being designated as the 3rd Mesh-link) between the radio frequency 1 of the radio frequency 1 of Mesh-link (being designated as the 2nd Mesh-link) between the radio frequency 2 of the radio frequency 2 of Mesh-link (being designated as a Mesh-link), MP 1 between the radio frequency 1 of the radio frequency 1 of MPP and MP1 and MP2 and MP2 and MP3.As can be seen, these three Mesh-link have formed complete Mesh network.Certainly, as another embodiment of the present invention, also can set up a Mesh-link who forms whole M esh network, shown in Fig. 4 b.To the centralized Mesh network shown in Fig. 4 b the time, between the radio frequency 1 of the radio frequency 1 of the radio frequency 1 of MPP, MP1 and MP2, set up Mesh-link, as can be seen, the Mesh-link that Fig. 4 b is set up has also formed the whole M esh network shown in Fig. 4 b, specifically how to set up Mesh-link, then can set up, no longer describe in detail here according to actual conditions such as networking demands.Based on this, as shown in Figure 3, this flow process can may further comprise the steps:
Here, the radio-frequency information that reports of Mesh equipment comprise this Mesh equipment report the employed radio frequency of this radio-frequency information and this radio frequency under Mesh be connected other radio frequencies that comprise.Reporting under the employed radio frequency of this radio-frequency information and the radio frequency Mesh to be connected other radio frequencies that comprise to Mesh equipment respectively below is described.
Wherein, the employed radio frequency of Mesh equipment reporting radio frequency information is specially support and the radio frequency that belong to Mesh-link of this Mesh equipment.Such as, if the radio-frequency information in the step 301 is to be reported by the MPP shown in Fig. 4 a, can know according to Fig. 4 a, be that radio frequency 1 belongs to a Mesh-link because MPP has only a radio frequency of its support, based on this, the radio frequency that the radio-frequency information that MPP reports uses is radio frequency 1.
Wherein, Mesh connects the Mesh-link neighbor information that other radio frequencies that comprise are actually this radio frequency under the radio frequency, use radio frequency 1 reporting radio frequency information to be example with MPP to AC, then shown in Fig. 4 a, there is Mesh-link between radio frequency 1 on the MPP and the radio frequency 1 of MP 1, based on this, we can say both Mesh-link neighbours each other of radio frequency 1 of the radio frequency 1 of MPP and MP 1.Therefore, can know that the Mesh-link neighbor information of the last radio frequency 1 of MPP is the radio frequency 1 of MP1, that is to say, the radio-frequency information that MPP reports has comprised the radio frequency 1 of MP1.
Step 302 is when AC arrives at first Preset Time, according to the radio-frequency information that reports and to divide centralized Mesh network according to the principle that the radio frequency of same Mesh-link belongs to same Mesh territory be an above Mesh territory.
With the centralized Mesh network shown in Fig. 4 a is example, when AC at first Preset Time (here, first Preset Time can be and receives MPP, MP1, when the time of the radio-frequency information that MP2 and MP3 report) arriving, AC divides according to the radio-frequency information that reports and according to the principle that the radio frequency of same Mesh-link belongs to same Mesh territory centralized Mesh network is divided into an above Mesh territory, be specially: can know according to the description in the step 301, the Mesh-link neighbor information of the radio frequency that the radio-frequency information that Mesh equipment reports has used when having comprised this Mesh equipment reporting radio frequency information, therefore, here can centralized Mesh network be divided into an above Mesh territory according to the Mesh-link neighbor information, belong to the purpose in same Mesh territory with the radio frequency that reaches same Mesh-link.Such as, shown in Fig. 4 a, three Mesh-link of current existence, be respectively first to the 3rd Mesh-link, radio frequency on each Mesh-link is Mesh-link neighbours each other, based on this, the Mesh neighbor information that radio-frequency information comprised that this step 302 can report according to the Mesh equipment among Fig. 4 a is divided into 3 Mesh territories with the Mesh network, be specially: the radio frequency 1 of MPP and the radio frequency 1 of MP1 are divided in same Mesh territory (being designated as a Mesh territory), the radio frequency 2 of MP 1 and the radio frequency 2 of MP2 are divided in same Mesh territory (being designated as the 2nd Mesh territory), the radio frequency 1 of MP2 and the radio frequency 1 of MP3 are divided in same Mesh territory (being designated as the 3rd Mesh territory).
Certainly, if with the centralized Mesh network shown in Fig. 4 b is example, owing to there is 1 Mesh-link among Fig. 4 b between the radio frequency 1 of the radio frequency 1 of the radio frequency 1 of MPP, MP1 and MP2, wherein, the radio frequency 1 of the radio frequency 1 of MPP, the radio frequency 1 of MP1 and MP2 is Mesh-link neighbours each other, therefore, this step 302 can be divided into the Mesh network 1 Mesh territory, and the radio frequency 1, the radio frequency 1 of MP1 and the radio frequency 1 of MP2 that are about to MPP are divided in the same Mesh territory.
Need to prove, in order to guarantee the communication quality of Mesh network, when being each Mesh equipment disposition radio frequency, normally the principle that has same radio frequency pattern, identical working channel, an identical available channel according to the radio frequency of forming same Mesh-link is configured, based on this, as can be seen, each radio frequency then has the attribute of same radio frequency pattern, identical working channel, identical available channel in the Mesh territory of dividing in this step 302.
Afterwards, at each Mesh territory of dividing, carry out following step 303 to step 315.
Here, the radio-frequency information that Mesh equipment reports in the above-mentioned steps 301 has also carried the interference value, the error rate of 1 above available channel that radio frequency that this Mesh equipment reports this radio-frequency information to use supports, each available channel etc.With the centralized Mesh network shown in Fig. 4 a is example, if the radio-frequency information in the step 301 is reported by the MPP shown in Fig. 4 a, then the radio-frequency information that reports of MPP comprises the interference value, the error rate of 1 above available channel that radio frequency 1 that MPP reporting radio frequency information uses supports, each available channel etc.Based on this, in this step 303, AC can be according to the interference value of available channel, the priority that error rate calculation goes out available channel, and concrete computational methods and prior art are similar, repeat no more here.
Step 304 greater than 1 o'clock, is arranged each available channel according to the priority orders that calculates in the number of available channel.
Step 304 specifically can be: arrange each available channel according to the size order of priority.
So far, to step 304, can finish the arrangement of each radio frequency support available channel in the described Mesh territory by above-mentioned steps 303.
Mesh territory with description in the step 302 is an example, because the radio frequency in the same Mesh territory has identical available channel, therefore, the radio frequency 1 of MPP is identical with the available channel that MP 1 supports in the one Mesh territory, if be that value is 149,153,157 and 161 channel, owing to be in the corresponding difference of interference value, the error rate of the Mesh equipment available channel of diverse location in the Mesh network, based on the description of step 303 to step 304, then the arrangement of the available channel of each radio frequency support is gone into shown in the table 1 in the Mesh territory.
Table 1
With above-mentioned table 1 is example, then in the step 305 first priority is defined as the priority of current use, the number of times that counts available channel under the priority of current use is: value is that 149 channel occurs 1 time, value is that 153 channel occurs 1 time, as can be seen, the available channel occurrence number equates under the current priority, does not promptly have the maximum available channel of occurrence number under the current priority, needs execution in step 308.
The preferred channels of can making a strategic decision out when so far, carrying out this step 307.
With above-mentioned table 1 is example, if when carrying out this step 308, first priority is current priority, then be with value 149 and value be that 153 channel group is in set.
Step 309 is selected the next priority of current priority, and this next priority of selecting is defined as current priority.
With above-mentioned table 1 is example, if when carrying out this step 309, current priority is first priority, and then the next priority of current priority is second priority, so, second priority can be defined as current priority.
Step 310 counts the number of times that available channel occurs in the set under current priority, judge whether the available channel that exists occurrence number maximum, if return execution in step 307; Otherwise, execution in step 311.
With above-mentioned table 1 is example, if when carrying out this step 310, comprised value in the set and be 149 and value be 153 channel, wherein, value is that 149 channel has occurred 1 time in current priority, value is 153 not appearance of channel, as can be seen, has the maximum available channel of occurrence number in the set, be that value is 149 channel, so, return step 307, be about to value and be 149 channel and be defined as preferred channels.Certainly, if value be 149 channel with value is that the number of times that occurs of 153 channel is identical in the current priority, then continue execution in step 311.
Step 311 judges whether current priority is lowest priority, if, execution in step 312; Otherwise, return execution in step 309.
Here, the judgement in the step 311 is specially and judges whether current priority is the lowest priority of the available channel that each radio frequency is supported in the described Mesh territory, is example with above-mentioned table 1, judges promptly whether current priority is the 4th priority.
Because the Mesh territory is based on the Mesh-link division, usually, the working channel that is in the radio frequency on the same Mesh-link equates, therefore, only needs in this step 312 judge whether the channel of one of them radio frequency work at present in the Mesh territory gets final product in set.
Step 313 is selected arbitrary available channel from set, this available channel of selecting is defined as the preferred channels in this Mesh territory.
The preferred channels of can making a strategic decision out when so far, carrying out this step 313.
When step 314, the channel of the radio frequency work at present in the Mesh territory were not the preferred channels of selecting, AC transmitting channel switching command was given the Mesh equipment under one of them radio frequency in this Mesh territory.
Step 315, the channel handoff protocol that the Mesh equipment that receives the channel switching command is described according to the 802.11s draft carries out channel and switches, and other Mesh equipment initiation channel switching commands under the radio frequency in Mesh, so that carrying out channels, other Mesh equipment switch.
Here, when the above-mentioned steps decision-making goes out the preferred channels in Mesh territory, owing to comprise a plurality of radio frequencies that same Mesh connects that are in the Mesh territory, therefore, this preferred channels of making a strategic decision out is the preferred channels of each radio frequency in this Mesh territory just, so, in the above-mentioned steps 314, AC only needs the transmitting channel switching command to get final product to the Mesh equipment (being designated as Mesh equipment 1) under the radio frequency in the Mesh territory, channel handover operation as for other Mesh equipment under other radio frequencies in this Mesh territory, directly trigger and get final product by the Mesh equipment 1 that receives the channel switching command, described other Mesh equipment are all deferred to the channel switching command that this Mesh equipment 1 is initiated, and need not operations such as channel negotiation of the prior art.
Need to prove, Fig. 3 is that example is described to divide centralized Mesh network according to the Mesh-link neighbor information, preferably, as another embodiment of the present invention, the present invention also can adopt other modes, divide centralized Mesh network such as adopting wireless mode, during specific implementation, step 301 is replaceable to be: the regular reporting radio frequency information of each Mesh equipment is given AC in the centralized Mesh network, here, radio-frequency information has comprised the radio mode information (radio mode information of the current use of this radio frequency just) that this Mesh equipment reports employed radio frequency of this radio-frequency information and the corresponding current use of this radio frequency, shown in Fig. 4 a, if MPP uses radio frequency 1 reporting radio frequency information to give AC, wherein, this radio frequency 1 current radio frequency that uses is 11a, and the wireless mode that has then comprised radio frequency 1 and radio frequency 1 use in this radio-frequency information is such as 11a.Step 302 replaces with: when AC arrives at first Preset Time, the radio mode information that comprises according to radio-frequency information, it is an above Mesh territory that the principle that belongs to same Mesh territory according to the identical radio frequency of wireless mode is divided centralized Mesh network, that is to say that the radio frequency that wireless mode is identical is divided in same Mesh territory.Still be depicted as example with Fig. 4 a, if the radio-frequency information that MPP reports is the wireless mode 11a that radio frequency 1 and radio frequency 1 use, the radio-frequency information that MP1 reports is the wireless mode 11a that radio frequency 1 and radio frequency 1 use, the radio-frequency information that MP2 reports is the wireless mode 11g that radio frequency 2 and radio frequency 2 use, and the radio-frequency information that MP3 reports is the wireless mode 11a that radio frequency 1 and radio frequency 1 use, based on this, then with 1 stroke of the radio frequency of the radio frequency 1 of the radio frequency 1 of MPP, MP1 and MP3 in same Mesh territory.Other steps are similar, repeat no more here.
More than method that the embodiment of the invention is provided be described, the equipment that the embodiment of the invention is provided is described below.
Referring to Fig. 5, the structure chart of the AC that Fig. 5 provides for the embodiment of the invention.This AC is in the centralized Mesh network, and as shown in Figure 5, described AC comprises: division unit 501 and decision package 502.
Wherein, division unit 501 is used for described centralized Mesh network is divided into an above Mesh territory; Here, the radio-frequency information that specifically reports according to Mesh equipment in the centralized Mesh network of division unit 501 is divided centralized Mesh network.
Preferably, as shown in Figure 5, division unit 501 can comprise: receiver module 5011 and division module 5012.
Wherein, receiver module 5011 is used for receiving the radio-frequency information that described each Mesh equipment of centralized Mesh network regularly reports;
In the embodiment of the invention, described radio-frequency information has also carried the available channel that Mesh equipment reports the radio frequency of this radio-frequency information use to support; Based on this, preferably, as shown in Figure 5, decision package 502 can comprise: determination module 5021 and decision-making module 5022.
Wherein, determination module 5021 is used for each radio frequency at the Mesh territory, determines the priority of the available channel that this radio frequency is supported;
Decision-making module 5022 is used for the priority according to the available channel of each radio frequency support of Mesh territory, and the preferred channels of making a strategic decision out.
Wherein, determination module 5021 was further used for number at available channel greater than 1 o'clock, arranged each available channel according to the priority orders of determining; Decision-making module 5022 can comprise: priority is determined submodule 50221 and processing sub 50222.
Wherein, priority determines that submodule 50221 is used for determining limit priority from the priority of the available channel of each radio frequency support of described Mesh territory, and this limit priority is defined as current priority;
As shown in Figure 5, decision-making module 5022 also comprises:
Statistics submodule 50225 counts the number of times that the available channel in the described set occurs under current priority, judge whether the available channel that exists occurrence number maximum, if the available channel that this occurrence number of making a strategic decision is maximum is a preferred channels; Otherwise, judge whether current priority is the lowest priority of the available channel that each radio frequency is supported in the described Mesh territory, if send judgement and be notified to judgement submodule 50226, otherwise triggering selection submodule 50224 is carried out selection operations;
As can be seen from the above technical solutions, among the present invention, AC is divided into an above Mesh territory with described centralized Mesh network; At each Mesh territory of dividing, make a strategic decision out the preferred channels of this Mesh territory correspondence of AC, and the channel of the radio frequency work at present in this Mesh territory is during for the preferred channels of making a strategic decision out, the Mesh equipment under the radio frequency in this Mesh territory of triggering is carried out channel and is switched.That is to say, the present invention is a unit decision-making preferred channels with the Mesh territory, wherein, comprise 1 above radio frequency in this Mesh territory, by the radio frequency in the Mesh territory being unified the decision-making preferred channels, so, avoided prior art, improved Mesh stability of network and communication quality at the radio frequency of the Mesh equipment defective that preferred channels brings of making a strategic decision out separately.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (12)
1. channel switching method in the centralized Mesh network is characterized in that this method may further comprise the steps:
A, the radio-frequency information that AC reports according to Mesh equipment in the centralized Mesh network is divided into an above Mesh territory with described centralized Mesh network;
B, at each Mesh territory of dividing, make a strategic decision out the preferred channels of this Mesh territory correspondence of AC, and the channel of the radio frequency work at present in this Mesh territory is during for the preferred channels of making a strategic decision out, the Mesh equipment under the radio frequency in this Mesh territory of triggering is carried out channel and is switched.
2. method according to claim 1 is characterized in that, the radio frequency that described radio-frequency information has carried the current use of Mesh equipment that reports this radio-frequency information is connected other radio frequencies that comprise with the affiliated Mesh of this radio frequency;
Division in the described steps A comprises:
When A11, AC arrived at first Preset Time, the principle that belongs to same Mesh territory according to the radio frequency in the same Mesh connection was divided centralized Mesh network.
3. method according to claim 1 is characterized in that, described radio-frequency information has carried the wireless mode of the presently used radio frequency of Mesh equipment that reports this radio-frequency information and this radio frequency correspondence;
Division in the described steps A comprises:
When A21, AC arrived at first Preset Time, the principle that belongs to same Mesh territory according to the identical radio frequency of wireless mode was divided described centralized Mesh network.
4. according to claim 2 or 3 described methods, it is characterized in that described radio-frequency information has also carried the available channel that the radio frequency that uses when Mesh equipment reports this radio-frequency information is supported;
Decision-making among the described step B comprises:
B1 at each radio frequency in this Mesh territory, determines the priority of the available channel that this radio frequency is supported;
B2 is according to the priority of the available channel of each radio frequency support in this Mesh territory, the preferred channels of making a strategic decision out.
5. method according to claim 4 is characterized in that, described step B1 further comprises: greater than 1 o'clock, arrange each available channel according to the priority orders of determining in the number of available channel;
Described step B2 comprises:
B21 determines limit priority in the priority of the available channel of each radio frequency support from described Mesh territory, this limit priority is defined as current priority;
B22 adds up the number of times that available channel under the described current priority occurs, and judges whether the available channel that exists occurrence number maximum, if the available channel that this occurrence number of making a strategic decision is maximum is a preferred channels.
6. method according to claim 5 is characterized in that, among the described step B22, if judged result is not, then further comprises:
B23 is placed on each available channel under the current priority in the set;
B24 selects the next priority of current priority, and this next priority of selecting is defined as current priority;
B25 counts the number of times that the available channel in the described set occurs under current priority, judge whether the available channel that exists occurrence number maximum, if the available channel that this occurrence number of making a strategic decision is maximum is a preferred channels; Otherwise, judge whether current priority is the lowest priority of the available channel that radio frequency is supported in the described Mesh territory, if, execution in step B26, otherwise, execution in step B24 returned;
B26 judges whether the channel of the radio frequency work at present among the Mesh exists in the described set, and if not, selecting any channel from described set is preferred channels.
7. method according to claim 1 is characterized in that, the affiliated Mesh equipment execution channel switching of radio frequency that triggers among the described step B in the Mesh territory comprises:
AC transmitting channel switching command is given the Mesh equipment under one of them radio frequency in this Mesh territory, carry out channel by other Mesh equipment under the radio frequency in this Mesh territory of this Mesh device trigger and switch, described other Mesh equipment are all deferred to the channel switching command that this Mesh equipment is initiated.
8. AC, this AC is in the centralized Mesh network, it is characterized in that, and described AC comprises:
Division unit is used for the radio-frequency information that reports according to centralized Mesh network Mesh equipment, and described centralized Mesh network is divided into an above Mesh territory;
Decision package, be used at each Mesh territory of dividing, the preferred channels of this Mesh territory correspondence of making a strategic decision out, and the channel of the radio frequency work at present in this Mesh territory is during for the preferred channels of making a strategic decision out, the Mesh equipment under the radio frequency in this Mesh territory of triggering is carried out channel and is switched.
9. AC according to claim 8 is characterized in that, described division unit comprises:
Receiver module is used for receiving the radio-frequency information that described each Mesh equipment of centralized Mesh network regularly reports;
Divide module, be used for when first Preset Time arrives, be connected other radio frequencies that comprise with the affiliated Mesh of this radio frequency if described radio-frequency information has carried the radio frequency of the Mesh equipment use that reports this radio-frequency information; Then the radio frequency that connects according to the same Mesh principle that belongs to same Mesh territory is divided described centralized Mesh network; If described radio-frequency information has carried the wireless mode of the employed radio frequency of Mesh equipment that reports this radio-frequency information and this radio frequency correspondence, then the principle that belongs to same Mesh territory according to the identical radio frequency of wireless mode is divided described centralized Mesh network.
10. according to claim 7 or 8 described AC, it is characterized in that described radio-frequency information has also carried the available channel that Mesh equipment reports the radio frequency of this radio-frequency information use to support;
Described decision package comprises:
Determination module is used for each radio frequency at the Mesh territory, determines the priority of the available channel that this radio frequency is supported;
Decision-making module is used for the priority according to the available channel of each radio frequency support of Mesh territory, and the preferred channels of making a strategic decision out.
11. AC according to claim 10 is characterized in that, described determination module was further used for number at available channel greater than 1 o'clock, arranged each available channel according to the priority orders of determining;
Described decision-making module comprises:
Priority is determined submodule, is used for determining limit priority from the priority of the available channel of each radio frequency support of described Mesh territory, and this limit priority is defined as current priority;
Processing sub is used to add up the number of times that available channel under the described current priority occurs, and judges whether the available channel that exists occurrence number maximum, if the available channel that this occurrence number of making a strategic decision is maximum is a preferred channels.
12. AC according to claim 11 is characterized in that, described decision-making module also comprises:
Submodule is set, is used in the judged result of described processing sub each available channel under the current priority being placed in the set for not the time;
The chooser module is used to select the next priority of current priority, and this next priority of selecting is defined as current priority;
The statistics submodule counts the number of times that the available channel in the described set occurs under current priority, judge whether the available channel that exists occurrence number maximum, if the available channel that this occurrence number of making a strategic decision is maximum is a preferred channels; Otherwise, judge whether current priority is the lowest priority of the available channel that each radio frequency is supported in the described Mesh territory, if send judgement and be notified to the judgement submodule, otherwise the triggering selection submodule is carried out selection operation;
Judge submodule, be used for judging whether the channel of the radio frequency work at present of Mesh exists in the described set, if not, selecting any channel from described set is preferred channels.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN105282829A (en) * | 2015-11-04 | 2016-01-27 | 广东欧珀移动通信有限公司 | Network connecting method and wireless speaker |
| CN109195188A (en) * | 2018-09-10 | 2019-01-11 | 新华三技术有限公司 | A kind of channel switching method and device |
| CN113055909A (en) * | 2021-03-01 | 2021-06-29 | 武汉大学 | Wireless Mesh network routing node device suitable for deep parallel data processing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368857A (en) * | 2011-11-03 | 2012-03-07 | 广州杰赛科技股份有限公司 | Switching method in wireless Mesh network domain |
| CN102368857B (en) * | 2011-11-03 | 2012-12-19 | 广州杰赛科技股份有限公司 | Switching method in wireless Mesh network domain |
| CN105282829A (en) * | 2015-11-04 | 2016-01-27 | 广东欧珀移动通信有限公司 | Network connecting method and wireless speaker |
| CN105282829B (en) * | 2015-11-04 | 2018-12-11 | 广东欧珀移动通信有限公司 | A kind of method and wireless sound box connecting network |
| CN109195188A (en) * | 2018-09-10 | 2019-01-11 | 新华三技术有限公司 | A kind of channel switching method and device |
| CN109195188B (en) * | 2018-09-10 | 2021-04-27 | 新华三技术有限公司 | Channel switching method and device |
| CN113055909A (en) * | 2021-03-01 | 2021-06-29 | 武汉大学 | Wireless Mesh network routing node device suitable for deep parallel data processing |
| CN113055909B (en) * | 2021-03-01 | 2022-05-20 | 武汉大学 | Wireless Mesh network routing node device suitable for deep parallel data processing |
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