CN102143496B - 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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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, particularly channel adjusting method and equipment in 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, by wireless controller (AC:AccessController), manage all Mesh equipment concentratedly as the radio frequency (R:Radio) of Mesh node (MP:Mesh Point) and/or Mesh door node (MPP:Mesh Portal Point), and for the radio frequency decision-making of each Mesh equipment goes out preferred channels, concrete flow process shown in Figure 1.
Referring to Fig. 1, Fig. 1 is the flow chart of channel adjustment in existing centralized Mesh network.As shown in Figure 1, this flow process can comprise the following steps:
In order to make to receive the network equipment reporting radio frequency resource information as early as possible that reports order, the response time that can make in prior art to report order to carry is smaller.
Here, the radio frequency resource information that in step 102, Mesh equipment reports is channel, the available channel of support and the interference value of each available channel, error rate of radio frequency work at present etc.
Here, the priority that AC first goes out each available channel according to the interference value of each available channel in radio frequency resource information, error rate calculation, is defined as the channel with limit priority the preferred channels of this radio frequency.
For guaranteeing the stable and reliable of Mesh network, in this step 106, Mesh equipment further carries out channel negotiation with other each Mesh equipment of having set up Mesh and being connected (Mesh-link), so that communicate between this network equipment and other each network equipments.
From the flow process described in Fig. 1, can find out, for the radio frequency of a Mesh equipment, the radio frequency resource information that AC just reports according to this Mesh equipment goes out a preferred channels for this radio frequency decision-making, 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, affect the channel adjustment of whole Mesh network, also reduced stability and the communication quality of Mesh network.
Summary of the invention
The invention provides channel adjusting method and equipment in centralized Mesh network, to improve stability and the communication quality of Mesh network.
Channel switching method in a kind of centralized Mesh network, the method comprises the following steps:
A, AC, according to the radio-frequency information that in centralized Mesh network, Mesh equipment reports, is divided into more than one Mesh territory by described centralized Mesh network;
B, for each Mesh territory of dividing, AC decision-making goes out preferred channels corresponding to this Mesh territory, and the channel of the radio frequency work at present in this Mesh territory do not go out for decision-making preferred channels time, the Mesh equipment triggering under the radio frequency in this Mesh territory is carried out channel switching.
A kind of AC, this AC is in centralized Mesh network, and described AC comprises:
Division unit, for the radio-frequency information reporting according to centralized Mesh network Mesh equipment, is divided into more than one Mesh territory by described centralized Mesh network;
Decision package, for each the Mesh territory for dividing, decision-making goes out preferred channels corresponding to this Mesh territory, and the channel of the radio frequency work at present in this Mesh territory do not go out for decision-making preferred channels time, 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, in the present invention, AC is divided into more than one Mesh territory by described centralized Mesh network; For each Mesh territory of dividing, AC decision-making goes out preferred channels corresponding to this Mesh territory, and the channel of the radio frequency work at present in this Mesh territory do not go out for decision-making preferred channels time, the Mesh equipment triggering under the radio frequency in this Mesh territory is carried out channel switching.That is to say, the present invention is unit decision-making preferred channels take Mesh territory, wherein, in this Mesh territory, comprise more than 1 radio frequency, by the radio frequency in Mesh territory is unified to decision-making preferred channels, so, avoid prior art to go out for the independent decision-making of radio frequency of a Mesh equipment defect that preferred channels is brought, improved stability and the communication quality of Mesh network.
Accompanying drawing explanation
Fig. 1 is the flow chart of channel adjustment in existing centralized Mesh network;
The basic flow sheet that Fig. 2 provides for the embodiment of the present invention;
The detail flowchart that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 a is the centralized Mesh network diagram of embodiment of the present invention application;
Fig. 4 b is centralized another schematic diagram of Mesh network of embodiment of the present invention application;
The structure chart of the AC that Fig. 5 provides for the embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments, describe the present invention.
The method that the embodiment of the present invention provides mainly comprises flow process as shown in Figure 2.The method is applied in centralized Mesh network, and as shown in Figure 2, this flow process can comprise the following steps:
So far, realized the basic procedure that the embodiment of the present invention provides.
Above-mentioned steps 201 is before carrying out, and AC can receive the radio-frequency information that in centralized Mesh network, Mesh equipment regularly reports, the content difference of carrying according to radio-frequency information, and the concrete operations that step 201 is carried out are also different.Such as: if the radio-frequency information that Mesh equipment reports has carried radio frequency and wireless mode corresponding to this radio frequency that this Mesh equipment reports this radio-frequency information to use, AC can belong to according to the identical radio frequency of wireless mode the principle execution division operation in same Mesh territory; Or, 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 affiliated Mesh-link of this radio frequency comprises, the principle that AC belongs to same Mesh territory according to each radio frequency on same Mesh-link is carried out division operation.
In order to make the object, technical solutions and advantages of the present invention clearer, the principle that belongs to same Mesh territory take AC according to the radio frequency of same Mesh-link is below divided Mesh network and is described the present invention as example.
Referring to Fig. 3, the detail flowchart that Fig. 3 provides for the embodiment of the present invention.When the centralized Mesh network of embodiment of the present invention application is carried out to networking, need to set up the Mesh-link of radio frequency, to communicate between Mesh equipment.As shown in Fig. 4 a, when networking is carried out at the centralized Mesh networking to 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 Mesh-link (being designated as the 2nd Mesh-link) and the radio frequency 1 of MP2 and the radio frequency 1 of MP3 between Mesh-link (being designated as a Mesh-link), the radio frequency 2 of MP 1 and the radio frequency 2 of MP2 between the radio frequency 1 of MPP and the radio frequency 1 of MP1.Can find out, these three Mesh-link have formed complete Mesh network.Certainly, as another embodiment of the present invention, also can set up the Mesh-link of a whole Mesh network of composition, as shown in Figure 4 b.When the centralized Mesh network to shown in Fig. 4 b, between radio frequency 1, the radio frequency 1 of MP1 and the radio frequency 1 of MP2 of MPP, set up Mesh-link, can find out, the Mesh-link that Fig. 4 b sets up has also formed the whole Mesh network shown in Fig. 4 b, specifically how to set up Mesh-link, can set up according to actual conditions such as networking demands, no longer describe in detail here.Based on this, as shown in Figure 3, this flow process can comprise the following steps:
Here, the radio-frequency information that Mesh equipment reports comprises this Mesh equipment and reports the radio frequency that this radio-frequency information is used to be connected with the affiliated Mesh of this radio frequency other radio frequencies that comprise.To Mesh equipment, reporting under radio frequency that this radio-frequency information uses and radio frequency Mesh to be connected other radio frequencies that comprise respectively is below described.
Wherein, the radio frequency that Mesh equipment reporting radio frequency information is used is specially this Mesh equipment radio frequency support and that belong to Mesh-link.Such as, if the radio-frequency information in step 301 is to be reported by the MPP as shown in Fig. 4 a, according to Fig. 4 a, can know, because MPP only has a radio frequency of its support, be that radio frequency 1 belongs to a Mesh-link, based on this, the radio frequency that the radio-frequency information that MPP reports is used is radio frequency 1.
Wherein, Mesh connects other radio frequencies that comprise and is actually the Mesh-link neighbor information of this radio frequency under radio frequency, take MPP use radio frequency 1 reporting radio frequency information to AC as example, as shown in Fig. 4 a, between radio frequency 1 on MPP and the radio frequency 1 of MP 1, there is Mesh-link, based on this, can say both Mesh-link neighbours each other of the radio frequency 1 of MPP and the radio frequency of MP 11.Therefore, can know, the radio frequency 1 that the Mesh-link neighbor information of the upper radio frequency 1 of MPP is MP1, that is to say, the radio frequency 1 that the radio-frequency information that MPP reports has comprised MP1.
Step 302, AC is when the first Preset Time arrives, according to the radio-frequency information reporting and to divide centralized Mesh network according to the principle that the radio frequency of same Mesh-link belongs to same Mesh territory be more than one Mesh territory.
Take the centralized Mesh network shown in Fig. 4 a as example, when AC at the first Preset Time (here, the first Preset Time can be and receives MPP, MP1, the time of the radio-frequency information that MP2 and MP3 report) arrive time, AC divides centralized Mesh network is divided into more than one Mesh territory 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, be specially: according to the description in step 301, can know, the Mesh-link neighbor information of the radio frequency that the radio-frequency information that Mesh equipment reports has been used while having comprised this Mesh equipment reporting radio frequency information, therefore, here can centralized Mesh network be divided into more than one Mesh territory according to Mesh-link neighbor information, to reach the radio frequency of same Mesh-link, belong to the object in same Mesh territory.Such as, as shown in Fig. 4 a, three Mesh-link of current existence, be respectively the first to the 3rd Mesh-link, radio frequency on each Mesh-link Mesh-link neighbours each other, based on this, the Mesh neighbor information that the radio-frequency information that this step 302 can report according to the Mesh equipment in Fig. 4 a comprises is divided into 3 Mesh territories by Mesh network, be specially: the radio frequency of the radio frequency of MPP 1 and MP1 1 is divided in to same Mesh territory (being designated as a Mesh territory), the radio frequency of the radio frequency of MP 12 and MP2 2 is divided in to same Mesh territory (being designated as the 2nd Mesh territory), the radio frequency of the radio frequency of MP2 1 and MP3 1 is divided in to same Mesh territory (being designated as the 3rd Mesh territory).
Certainly, if take the centralized Mesh network shown in Fig. 4 b as example, between radio frequency 1, the radio frequency 1 of MP1 and the radio frequency 1 of MP2 due to MPP in Fig. 4 b, there is 1 Mesh-link, wherein, the radio frequency 1 Mesh-link neighbours each other of the radio frequency 1 of MPP, the radio frequency 1 of MP1 and MP2, therefore, this step 302 can be divided into 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 same Mesh territory.
It should be noted that, in order to guarantee the communication quality of Mesh network, when being each Mesh equipment configuration radio frequency, the principle that normally has same radio frequency pattern, identical working channel, an identical available channel according to the radio frequency of the same Mesh-link of composition is configured, based on this, can find out, in the Mesh territory of dividing in this step 302, each radio frequency has the attribute of same radio frequency pattern, identical working channel, identical available channel.
Afterwards, for each Mesh territory of dividing, carry out following step 303 to step 315.
Here, in above-mentioned steps 301, Mesh equipment reports radio-frequency information has also carried the interference value, the error rate of more than 1 available channel, each available channel that radio frequency that this Mesh equipment reports this radio-frequency information to use supports etc.Take the centralized Mesh network shown in Fig. 4 a as example, if the radio-frequency information in step 301 is reported by the MPP as shown in Fig. 4 a, the interference value of more than 1 available channel, each available channel that the radio frequency 1 that the radio-frequency information that MPP reports comprises the use of MPP reporting radio frequency information is supported, the error rate etc.Based on this, in this step 303, AC can go out according to the interference value of available channel, error rate calculation the priority of available channel, and circular similarly to the prior art, repeats no more here.
Step 304, is greater than at 1 o'clock in the number of available channel, according to the priority orders calculating, arranges each available channel.
Step 304 specifically can be: according to the size order of priority, arrange each available channel.
So far, by above-mentioned steps 303, to step 304, can complete the arrangement of each radio frequency support available channel in described Mesh territory.
Take in step 302 describe a Mesh territory as example, because the radio frequency in same Mesh territory has identical available channel, therefore, in the one Mesh territory, the radio frequency 1 of MPP is identical with the available channel that MP 1 supports, if be that value is 149,153,157 and 161 channel, due to the corresponding difference of interference value, the error rate of the Mesh equipment available channel of diverse location in Mesh network, description based on step 303 to step 304, the row of the available channel that in a Mesh territory, each radio frequency is supported
Table 1
List in shown in table 1.
Take above-mentioned table 1 as example, in step 305, the first priority is defined as to the priority of current use, the number of times that counts available channel under the priority of current use is: the channel that value is 149 occurs 1 time, value is that 153 channel occurs 1 time, can find out, under current priority, available channel occurrence number equates, under current priority, does not have the available channel that occurrence number is maximum, need to perform step 308.
While so far, carrying out this step 307, get final product decision-making and go out preferred channels.
Take above-mentioned table 1 as example, if while carrying out this step 308, the first priority is current priority, by value, be 149 and the value channel group that is 153 in set.
Take above-mentioned table 1 as example, if while carrying out this step 309, current priority is the first priority, the next priority of current priority is the second priority, so, the second priority can be defined as to current priority.
Take above-mentioned table 1 as example, if while carrying out this step 310, in set, comprised value and be 149 and the value channel that is 153, wherein, the channel that value is 149 in current priority has occurred 1 time, value is that 153 channel does not occur, can find out, has the available channel that occurrence number is maximum in set, be that value is 149 channel, so, return to step 307, the channel that soon value is 149 is defined as preferred channels.Certainly, if the number of times that the channel that the channel that in current priority, value is 149 is 153 with value occurs is identical, continue execution step 311.
Here, judging in step 311 is specially and judges that whether current priority is the lowest priority of the available channel that in described Mesh territory, each radio frequency is supported, take above-mentioned table 1 as example, judges whether current priority is the 4th priority.
Because Mesh territory is divided based on Mesh-link, conventionally, the working channel of the radio frequency on same Mesh-link equates, therefore, only needs to judge that the channel of one of them radio frequency work at present in Mesh territory is whether in set in this step 312.
Step 313 is selected arbitrary available channel from set, this available channel of selecting is defined as to the preferred channels in this Mesh territory.
While so far, carrying out this step 313, get final product decision-making and go out preferred channels.
Step 315, the Mesh equipment that receives channel switching command carries out channel switching according to the channel handoff protocol of 802.11s draft description, and other Mesh equipment under the radio frequency in Mesh initiate channel switching commands, so that carrying out channels, other Mesh equipment switch.
Here, when above-mentioned steps decision-making goes out the preferred channels in Mesh territory, owing to comprising multiple radio frequencies that connect in same Mesh in Mesh territory, therefore, the preferred channels that this decision-making goes out is the preferred channels of each radio frequency in this Mesh territory namely, so, in above-mentioned steps 314, AC only needs transmitting channel switching command to the Mesh equipment under a radio frequency in Mesh territory (being designated as Mesh equipment 1), as for the channel handover operation of other Mesh equipment under other radio frequencies in this Mesh territory, directly by the Mesh equipment 1 that receives channel switching command, triggered, described other Mesh equipment are all deferred to the channel switching command that this Mesh equipment 1 is initiated, without operations such as channel negotiations of the prior art.
It should be noted that, Fig. 3 is described as example to divide centralized Mesh network according to Mesh-link neighbor information, preferably, as another embodiment of the present invention, the present invention also can adopt other modes, such as adopting wireless mode, divide centralized Mesh network, during specific implementation, step 301 is replaceable is: in centralized Mesh network, the regular reporting radio frequency information of each Mesh equipment is to AC, here, radio-frequency information has comprised this Mesh equipment and has reported radio frequency that this radio-frequency information uses and the radio mode information (radio mode information of the namely current use of this radio frequency) of the corresponding current use of this radio frequency, as shown in Fig. 4 a, if MPP is used radio frequency 1 reporting radio frequency information to AC, wherein, the radio frequency of this radio frequency 1 current use is 11a, in this radio-frequency information, comprised wireless mode that radio frequency 1 and radio frequency 1 use such as 11a.Step 302 replaces with: AC is when the first Preset Time arrives, the radio mode information comprising according to radio-frequency information, it is more than one 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, radio frequency identical wireless mode is divided in to same Mesh territory.Still with Fig. 4 a, be depicted as example, if the radio-frequency information that MPP reports is the wireless mode 11a that radio frequency 1 and radio frequency 1 are used, the radio-frequency information that MP1 reports is the wireless mode 11a that radio frequency 1 and radio frequency 1 are used, the radio-frequency information that MP2 reports is the wireless mode 11g that radio frequency 2 and radio frequency 2 are used, and the radio-frequency information that MP3 reports is the wireless mode 11a that radio frequency 1 and radio frequency 1 are used, based on this, by 1 stroke of the radio frequency of the radio frequency of the radio frequency of MPP 1, MP1 1 and MP3 in same Mesh territory.Other steps are similar, repeat no more here.
The method above embodiment of the present invention being provided is described, and the equipment below embodiment of the present invention being provided is described.
Referring to Fig. 5, the structure chart of the AC that Fig. 5 provides for the embodiment of the present invention.This AC is in centralized Mesh network, and as shown in Figure 5, described AC comprises: division unit 501 and decision package 502.
Wherein, division unit 501 is for being divided into more than one Mesh territory by described centralized Mesh network; Here, division unit 501 is specifically divided centralized Mesh network according to the radio-frequency information that in centralized Mesh network, Mesh equipment reports.
Decision package 502 is for each the Mesh territory for dividing, decision-making goes out preferred channels corresponding to this Mesh territory, and the channel of the radio frequency work at present in this Mesh territory do not go out for decision-making preferred channels time, the Mesh equipment under the radio frequency in this Mesh territory of triggering is carried out channel and is switched.
Preferably, as shown in Figure 5, division unit 501 can comprise: receiver module 5011 and division module 5012.
Wherein, the radio-frequency information that receiver module 5011 regularly reports for receiving described each Mesh equipment of centralized Mesh network;
Divide module 5012 for when the first Preset Time arrives, if described radio-frequency information has carried, report the radio frequency that the Mesh equipment of this radio-frequency information is used to be connected with the Mesh under this radio frequency other radio frequencies that comprise; The radio frequency connecting according to same Mesh belongs to the principle in same Mesh territory and divides described centralized Mesh network; If described radio-frequency information has carried the radio frequency and wireless mode corresponding to this radio frequency that report the Mesh equipment of this radio-frequency information to use, according to the identical radio frequency of wireless mode, belong to the described centralized Mesh network of principle division in same Mesh territory.
In the embodiment of the present 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, for each radio frequency for Mesh territory, is determined the priority of the available channel of this radio frequency support;
Decision-making module 5022 is for the priority of the available channel supported according to each radio frequency of Mesh territory, and decision-making goes out preferred channels.
Wherein, determination module 5021 is further used for being greater than at 1 o'clock in the number of available channel, according to definite priority orders, arranges each available channel; Decision-making module 5022 can comprise: priority is determined submodule 50221 and processed submodule 50222.
Wherein, priority determines that submodule 50221, for determine limit priority from the priority of the available channel of each radio frequency support of described Mesh territory, is defined as current priority by this limit priority;
Process the number of times that submodule 50222 occurs for adding up available channel under described current priority, judge whether the available channel that exists occurrence number maximum, if so, the available channel that this occurrence number of decision-making is maximum is preferred channels.
As shown in Figure 5, decision-making module 5022 also comprises:
Submodule 50223 is set, for when to process the judged result of submodule 50222 be no, each available channel under current priority is placed in set;
Chooser module 50224, for selecting the next priority of current priority, is defined as current priority by this next priority of selecting;
Statistics submodule 50225, counts the number of times that the available channel in described set occurs under current priority, judges whether the available channel that exists occurrence number maximum, and if so, the available channel that this occurrence number of decision-making is maximum is preferred channels; Otherwise, judge whether current priority is the lowest priority of the available channel that in described Mesh territory, each radio frequency is supported, if so, send judgement notice to judging submodule 50226, otherwise triggering selection submodule 50224 is carried out and is selected operation;
Whether judge submodule 50226, for the channel of the radio frequency work at present that judges Mesh, exist in described set, if not, from described set, selecting any channel is preferred channels.
As can be seen from the above technical solutions, in the present invention, AC is divided into more than one Mesh territory by described centralized Mesh network; For each Mesh territory of dividing, AC decision-making goes out preferred channels corresponding to this Mesh territory, and the channel of the radio frequency work at present in this Mesh territory do not go out for decision-making preferred channels time, the Mesh equipment triggering under the radio frequency in this Mesh territory is carried out channel switching.That is to say, the present invention is unit decision-making preferred channels take Mesh territory, wherein, in this Mesh territory, comprise more than 1 radio frequency, by the radio frequency in Mesh territory is unified to decision-making preferred channels, so, avoid prior art to go out for the independent decision-making of radio frequency of a Mesh equipment defect that preferred channels is brought, improved stability and the communication quality of Mesh network.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (12)
1. a channel switching method in centralized Mesh network, is characterized in that, the method comprises the following steps:
A, AC, according to the radio-frequency information that in centralized Mesh network, Mesh equipment reports, is divided into more than one Mesh territory by described centralized Mesh network;
B, for each Mesh territory of dividing, AC decision-making goes out preferred channels corresponding to this Mesh territory, and the channel of the radio frequency work at present in this Mesh territory do not go out for decision-making preferred channels time, the Mesh equipment triggering under the radio frequency in this Mesh territory is carried out channel switching.
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 with the affiliated Mesh of this radio frequency other radio frequencies that comprise;
Division in described steps A comprises:
A11, AC is when the first Preset Time arrives, and the principle that belongs to same Mesh territory according to the radio frequency in same Mesh connection is divided centralized Mesh network.
3. method according to claim 1, is characterized in that, described radio-frequency information has carried the presently used radio frequency of Mesh equipment and wireless mode corresponding to this radio frequency that report this radio-frequency information;
Division in described steps A comprises:
A21, AC is when the first Preset Time arrives, and the principle that belongs to same Mesh territory according to the identical radio frequency of wireless mode is divided described centralized Mesh network.
4. according to the method in claim 2 or 3, 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 in described step B comprises:
B1, for each radio frequency in this Mesh territory, determines the priority of the available channel of this radio frequency support;
B2, according to the priority of the available channel that in this Mesh territory, each radio frequency is supported, decision-making goes out preferred channels.
5. method according to claim 4, is characterized in that, described step B1 further comprises: in the number of available channel, be greater than at 1 o'clock, according to definite priority orders, arrange each 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, and this limit priority is defined as to current priority;
B22 adds up the number of times that available channel under described current priority occurs, judges whether the available channel that exists occurrence number maximum, and if so, the available channel that this occurrence number of decision-making is maximum is preferred channels.
6. method according to claim 5, is characterized in that, in described step B22, if judged result is no, further comprises:
B23, is placed on each available channel under current priority in set;
B24, selects the next priority of current priority, and this next priority of selecting is defined as to current priority;
B25, counts the number of times that the available channel in described set occurs under current priority, judges whether the available channel that exists occurrence number maximum, and if so, the available channel that this occurrence number of decision-making is maximum is preferred channels; Otherwise, judge whether current priority is the lowest priority of the available channel that in described Mesh territory, radio frequency is supported, if so, execution step B26, otherwise, return to execution step B24;
B26, judges whether the channel of the radio frequency work at present in Mesh exists in described set, and if not, from described set, selecting any channel is preferred channels.
7. method according to claim 1, is characterized in that, the affiliated Mesh equipment execution channel switching of radio frequency triggering in described step B in Mesh territory comprises:
AC transmitting channel switching command is given the Mesh equipment under one of them radio frequency in this Mesh territory, by other Mesh equipment under the radio frequency in this Mesh territory of this Mesh device trigger, carry out channel and switch, described other Mesh equipment are all deferred to the channel switching command that this Mesh equipment is initiated.
8. an AC, this AC, in centralized Mesh network, is characterized in that, described AC comprises:
Division unit, for the radio-frequency information reporting according to centralized Mesh network Mesh equipment, is divided into more than one Mesh territory by described centralized Mesh network;
Decision package, for each the Mesh territory for dividing, decision-making goes out preferred channels corresponding to this Mesh territory, and the channel of the radio frequency work at present in this Mesh territory do not go out for decision-making preferred channels time, 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, the radio-frequency information regularly reporting for receiving described each Mesh equipment of centralized Mesh network;
Divide module, for when the first Preset Time arrives, if described radio-frequency information has carried, report the radio frequency that the Mesh equipment of this radio-frequency information is used to be connected with the Mesh under this radio frequency other radio frequencies that comprise; The radio frequency connecting according to same Mesh belongs to the principle in same Mesh territory and divides described centralized Mesh network; If described radio-frequency information has carried the radio frequency and wireless mode corresponding to this radio frequency that report the Mesh equipment of this radio-frequency information to use, according to the identical radio frequency of wireless mode, belong to the described centralized Mesh network of principle division in same Mesh territory.
10. AC according to claim 8 or claim 9, is characterized in that, described radio-frequency information has also carried the available channel that radio frequency that Mesh equipment reports this radio-frequency information to use is supported;
Described decision package comprises:
Determination module, for each radio frequency for Mesh territory, determines the priority of the available channel of this radio frequency support;
Decision-making module, for the priority of the available channel supported according to each radio frequency of Mesh territory, and decision-making goes out preferred channels.
11. AC according to claim 10, is characterized in that, described determination module is further used for being greater than at 1 o'clock in the number of available channel, according to definite priority orders, arranges each available channel;
Described decision-making module comprises:
Priority is determined submodule, for determine limit priority from the priority of the available channel of each radio frequency support of described Mesh territory, this limit priority is defined as to current priority;
Process submodule, the number of times occurring for adding up available channel under described current priority, judges whether the available channel that exists occurrence number maximum, and if so, the available channel that this occurrence number of decision-making is maximum is preferred channels.
12. AC according to claim 11, is characterized in that, described decision-making module also comprises:
Submodule is set, when being no in the judged result of described processing submodule, each available channel under current priority is placed in set;
Chooser module, for selecting the next priority of current priority, is defined as current priority by this next priority of selecting;
Statistics submodule, counts the number of times that the available channel in described set occurs under current priority, judges whether the available channel that exists occurrence number maximum, and if so, the available channel that this occurrence number of decision-making is maximum is preferred channels; Otherwise, judge whether current priority is the lowest priority of the available channel that in described Mesh territory, each radio frequency is supported, if so, send judgement notice to judging submodule, otherwise triggering selection submodule is carried out and is selected operation;
Whether judge submodule, for the channel of the radio frequency work at present that judges Mesh, exist in described set, if not, from described set, selecting any channel is preferred channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010104468.7A CN102143496B (en) | 2010-02-01 | 2010-02-01 | Method and equipment for adjusting channels in centralized mesh network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010104468.7A CN102143496B (en) | 2010-02-01 | 2010-02-01 | Method and equipment for adjusting channels in centralized mesh network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102143496A CN102143496A (en) | 2011-08-03 |
| CN102143496B true CN102143496B (en) | 2014-04-16 |
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| 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 |
| 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 |
| CN109195188B (en) * | 2018-09-10 | 2021-04-27 | 新华三技术有限公司 | Channel switching method and device |
| 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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| CN101015172A (en) * | 2004-07-14 | 2007-08-08 | 英特尔公司 | Systems and methods of distributed self-configuration for extended service set mesh networks |
| CN101621837A (en) * | 2008-06-30 | 2010-01-06 | 华为技术有限公司 | Channel switching method, mesh network node and mesh network |
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| CN101015172A (en) * | 2004-07-14 | 2007-08-08 | 英特尔公司 | Systems and methods of distributed self-configuration for extended service set mesh networks |
| CN101621837A (en) * | 2008-06-30 | 2010-01-06 | 华为技术有限公司 | Channel switching method, mesh network node and mesh network |
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