CN103826240A - Method and system for recognizing adjacent wireless access points - Google Patents
Method and system for recognizing adjacent wireless access points Download PDFInfo
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- CN103826240A CN103826240A CN201410064989.2A CN201410064989A CN103826240A CN 103826240 A CN103826240 A CN 103826240A CN 201410064989 A CN201410064989 A CN 201410064989A CN 103826240 A CN103826240 A CN 103826240A
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Abstract
The invention relates to a method and system for recognizing adjacent wireless access points. When signal coverage areas between the wireless access points are overlapped, the first wireless access points receive data packages sent by the second wireless access points, the signal coverage areas of the first wireless access points and the signal coverage areas of the second wireless access points are overlapped, system identifiers and wireless service information can be added to the data packages sent by the second wireless access points so as to recognize the second wireless access points, when the data packages received by the first wireless access points include the system identifiers and the wireless service information, the data packages are sent by the second wireless access points adjacent to the first wireless access points, the second wireless access points adjacent to the first wireless access points can be automatically recognized, so that the position relations between all the wireless access points are determined, and recognition cost is low.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of recognition methods and system of adjacent WAP (wireless access point).
Background technology
In WLAN (wireless local area network), comprise multiple WAP (wireless access point), when the quantity of WAP (wireless access point) is more, when overlapped coverage, need WAP (wireless access point) controller to carry out the grouping management based on positional information between WAP (wireless access point) to each WAP (wireless access point), carry out the adjustment of channel, power and load redundancy with the WAP (wireless access point) in WLAN (wireless local area network), reduce the interference between adjacent WAP (wireless access point), fully promote the communication performance of WLAN (wireless local area network), wherein the neighbouring relations between WAP (wireless access point) are to embody the important information of position between WAP (wireless access point).
In prior art, have two schemes to obtain the positional information between WAP (wireless access point), the first scheme is the adjacent WAP (wireless access point) list of manual configuration, and this scheme underaction can only rely on the manual configuration of revising when network changes; First scheme needs terminal to feed back to WAP (wireless access point) the WAP (wireless access point) list that this terminal scanning arrives, WAP (wireless access point) is determined its adjacent WAP (wireless access point) according to the WAP (wireless access point) list of terminal feedback, definite wireless access dot information is sent to WAP (wireless access point) controller, determine the position between WAP (wireless access point) for WAP (wireless access point) controller, this scheme is higher to the functional requirement of terminal, and the identification cost of adjacent WAP (wireless access point) is higher.
Summary of the invention
Main purpose of the present invention is to provide a kind of recognition methods and system of adjacent WAP (wireless access point), is intended to automatically to identify under the prerequisite of WAP (wireless access point), reduces the identification cost of adjacent WAP (wireless access point).
The present invention proposes a kind of recognition methods of adjacent WAP (wireless access point), comprising:
The first WAP (wireless access point), in the time receiving packet, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of the second WAP (wireless access point);
In the time that the packet receiving is identification packet, system banner and wireless service information in the packet that described the first WAP (wireless access point) record receives, and using the system banner of record and corresponding the second WAP (wireless access point) of wireless service information as neighboring access point.
Preferably, it is described in the time that the packet receiving is identification packet, system banner and wireless service information in the packet that described the first WAP (wireless access point) record receives, and using record system banner and corresponding the second WAP (wireless access point) of wireless service information after the step of neighboring access point, the method comprises:
Name a person for a particular job system banner and the wireless service information of record of described the first wireless access sends to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the system banner that receives and wireless service Information generation the first WAP (wireless access point) and adjacent the second WAP (wireless access point).
Preferably, described the first WAP (wireless access point) is in the time receiving packet, determine whether the packet receiving is identification packet, and before described identification packet comprises the system banner of the second WAP (wireless access point) and the step of wireless service information, the method comprises:
Described the second WAP (wireless access point) in the time powering on, generate comprise described the second WAP (wireless access point) system banner and the identification packet of wireless service information;
The identification packet that described the second WAP (wireless access point) broadcast generates.
Preferably, the method also comprises:
The channel list that A, described the first WAP (wireless access point) issue according to WAP (wireless access point) controller, carries out channel switching successively;
When B, described the first WAP (wireless access point) receive packet, determine whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of the second WAP (wireless access point);
C, at the packet receiving while being identification packet, system banner and wireless service information in the packet that described the first WAP (wireless access point) record receives, and using the system banner of record and corresponding the second WAP (wireless access point) of wireless service information as neighboring access point;
D, continuation execution step A are until switched all channels in the channel list receiving, described system banner and the wireless service information of record are sent to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the system banner that receives and wireless service Information generation the first WAP (wireless access point) and adjacent the second WAP (wireless access point).
Preferably, before step B, the method comprises:
Described first system banner of WAP (wireless access point) broadcast request WAP (wireless access point) and the request data package of wireless service information.
The present invention also proposes a kind of recognition system of adjacent WAP (wireless access point), comprises multiple WAP (wireless access point), and wherein each WAP (wireless access point) comprises:
Determination module, in the time receiving packet, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of other WAP (wireless access point);
Logging modle, for in the time that the packet receiving is identification packet, record receive packet in system banner and wireless service information, and using record system banner and corresponding other WAP (wireless access point) of wireless service information as neighboring access point.
Preferably, described WAP (wireless access point) also comprises the first sending module, for the system banner of record and wireless service information are sent to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the WAP (wireless access point) at the system banner receiving and wireless service Information generation determination module place and adjacent other access point.
Preferably, described WAP (wireless access point) also comprises generation module and the second sending module, and described generation module, in the time powering on, generates the system banner of WAP (wireless access point) and the identification packet of wireless service information that comprise described generation module place; The identification packet of described the second sending module for broadcasting generation.
Preferably, described WAP (wireless access point) also comprises channel handover module, for the channel list issuing according to WAP (wireless access point) controller, carries out successively channel switching; Described determination module, also for carrying out after channel switching, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of other WAP (wireless access point); Described channel handover module is also for after the described system banner and wireless service information at packet in described logging modle, continue the channel list issuing according to described WAP (wireless access point) controller, carry out successively channel switching, until switched all channels in the channel list receiving; This WAP (wireless access point) also comprises the 3rd sending module, for described system banner and the wireless service information of record are sent to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the WAP (wireless access point) at the system banner that receives and wireless service Information generation determination module place and adjacent other WAP (wireless access point).
Preferably, described the 3rd sending module is also for carrying out after channel switching at channel handover module, the request data package of the system banner of broadcast request WAP (wireless access point) and wireless service information.
Recognition methods and the system of the adjacent WAP (wireless access point) that the present invention proposes, in the time that the signal cover between described WAP (wireless access point) is overlapping, the first WAP (wireless access point) receives the packet that second WAP (wireless access point) overlapping with its signal cover sends, in the packet that can send in the second WAP (wireless access point), add system banner and wireless service information to identify the second WAP (wireless access point), while comprising system banner and wireless service information in the packet receiving in the first WAP (wireless access point), illustrate that this packet is that the second adjacent WAP (wireless access point) sends, can automatically identify adjacent second WAP (wireless access point) of this first WAP (wireless access point), to determine the position relationship between each WAP (wireless access point), identification cost is lower.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of recognition methods first embodiment of the adjacent WAP (wireless access point) of the present invention;
Fig. 2 is the schematic flow sheet of recognition methods second embodiment of the adjacent WAP (wireless access point) of the present invention;
Fig. 3 is the schematic flow sheet of recognition methods the 3rd embodiment of the adjacent WAP (wireless access point) of the present invention;
Fig. 4 is the schematic flow sheet of recognition methods the 4th embodiment of the adjacent WAP (wireless access point) of the present invention;
Fig. 5 is the schematic flow sheet of recognition methods the 5th embodiment of the adjacent WAP (wireless access point) of the present invention;
Fig. 6 is the high-level schematic functional block diagram of WAP (wireless access point) the first embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention;
Fig. 7 is the high-level schematic functional block diagram of WAP (wireless access point) the second embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention;
Fig. 8 is the high-level schematic functional block diagram of WAP (wireless access point) the 3rd embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention;
Fig. 9 is the high-level schematic functional block diagram of WAP (wireless access point) the 4th embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Be described further with regard to technical scheme of the present invention below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1, Fig. 1 is the schematic flow sheet of recognition methods first embodiment of the adjacent WAP (wireless access point) of the present invention.
The present embodiment proposes a kind of recognition methods of adjacent WAP (wireless access point), comprising:
Step S10, the first WAP (wireless access point), in the time receiving packet, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of the second WAP (wireless access point);
The first WAP (wireless access point) is in the time carrying out data communication, and the wireless data packet type receiving comprises: the identification packet that what the second WAP (wireless access point) was broadcasted after powering on comprise its wireless service information; The identification packet that the second WAP (wireless access point) sends to the first WAP (wireless access point) by the mode of bridge joint; And the terminal of access the first WAP (wireless access point), the wireless data packet sending to the first WAP (wireless access point); The identification packet of the second WAP (wireless access point) fixed time broadcast.
In the present embodiment, the first WAP (wireless access point) is determined when whether the packet receiving is identification packet, can decode to the packet receiving, and judge in decoded packet, whether have system banner and wireless service information, in the time having system banner and wireless service information in decoded packet, determine that this packet is identification packet, or also can in packet, add the first-class mark of mark, in this mark, comprise system banner and wireless service information, the first WAP (wireless access point) is receiving the marking head that directly obtains packet in packet, in the time that the marking head of packet has system banner and wireless service information, the first WAP (wireless access point) determines that this packet is identification packet, whether above-mentioned two schemes only determines for this first WAP (wireless access point) the packet that receives is the enumerating of scheme of identification packet, can not represent whether the definite packet receiving of the first WAP (wireless access point) is all technical schemes of identification packet.
Step S20, in the time that the packet receiving is identification packet, system banner and wireless service information in the packet that the first WAP (wireless access point) record receives, and using the system banner of record and corresponding the second WAP (wireless access point) of wireless service information as neighboring access point.
The second WAP (wireless access point) can identify and wireless service information by add-on system in the wireless data packet of its transmission, to identify the identity of this second WAP (wireless access point), this system banner can comprise the physical address of the second wireless access point device, and wireless service information can comprise the wireless network identification that WAP (wireless access point) provides.Can, by expand IE field in packet, identify the identity of the second WAP (wireless access point) in the present embodiment, this identification field comprises system banner and wireless service information.
In the present embodiment, the first WAP (wireless access point) must be in the signal cover of the second WAP (wireless access point), the first WAP (wireless access point) just can receive the wireless data packet that the second WAP (wireless access point) sends, now the second WAP (wireless access point) is as the adjacent WAP (wireless access point) of the first WAP (wireless access point), and explanation is in the present embodiment in the signal cover of the first WAP (wireless access point) in its second adjacent WAP (wireless access point).
In the present embodiment, the first WAP (wireless access point) can generate the list of its adjacent the second wireless access dot information, this list comprises system banner and the wireless service information of the second WAP (wireless access point) being adjacent, WAP (wireless access point) controller can be controlled and parameter adjustment WAP (wireless access point) accordingly according to system banner and wireless service information, and the scheme of concrete control and parameter adjustment is as follows:
1), the signal strength signal intensity of WAP (wireless access point) and channel adjustment, WAP (wireless access point) controller is getting after the positional information of access point, the signal strength signal intensity of adjustable adjacent WAP (wireless access point), so that in order to avoid there is the situation that signal disturbs in adjacent WAP (wireless access point) no signal overlapping region; And adjust the channel of adjacent WAP (wireless access point), make adjacent WAP (wireless access point) adopt different channels to carry out the forwarding of packet, to avoid adjacent WAP (wireless access point) to interfere with each other;
2), the AP redundancy of adjacent WAP (wireless access point) is adjusted: when the quantity of the terminal accessing in WAP (wireless access point) exceedes pre-set threshold value, WAP (wireless access point) controller can access adjacent WAP (wireless access point) by other terminal of request access, and now this WAP (wireless access point) and adjacent WAP (wireless access point) thereof provide identical wireless network identification;
3) detect illegal IP, when the system banner in the identification packet that WAP (wireless access point) receives, when different from the system banner of WAP (wireless access point) itself, illustrate that this WAP (wireless access point) does not belong in native system, the system banner that record can be got and wireless service information reporting, to WAP (wireless access point) controller, remind this WAP (wireless access point) of WAP (wireless access point) controller not belong in native system (WLAN (wireless local area network)).
In the time adopting specific identify label to carry out identification data bag and whether be identification packet, after the first WAP (wireless access point) is decoded to the wireless data packet receiving, if there is no system banner and wireless service information in decoded wireless data packet, illustrate that this wireless data packet is the wireless data packet of normally carrying out data interaction, this packet is carried out to normal process, as forward this packet; When adding identify label carry out identification data bag and whether be identification packet in marking head, if identify label is not set in marking head, illustrate that this wireless data packet is the wireless data packet of normally carrying out data interaction, the first WAP (wireless access point) is carried out normal process to this packet, as forwards this packet; Further, if do not comprise the system banner of WAP (wireless access point) in identify label, illustrate that this WAP (wireless access point) is not in native system.
The recognition methods of the adjacent WAP (wireless access point) that the present embodiment proposes, in the time that the signal cover between the first WAP (wireless access point) and the second WAP (wireless access point) is overlapping, the first WAP (wireless access point) receives the packet that second WAP (wireless access point) overlapping with its signal cover sends, in the packet that can send in the second WAP (wireless access point), add system banner and wireless service information to identify the second WAP (wireless access point), while comprising system banner and wireless service information in the packet receiving in the first WAP (wireless access point), illustrate that this packet is that the second adjacent WAP (wireless access point) sends, can automatically identify adjacent second WAP (wireless access point) of this first WAP (wireless access point), to determine the position relationship between each WAP (wireless access point), identification cost is lower.
With reference to Fig. 2, Fig. 2 is the schematic flow sheet of recognition methods second embodiment of the adjacent WAP (wireless access point) of the present invention.
Recognition methods the second embodiment that proposes the adjacent WAP (wireless access point) of the present invention based on the first embodiment, after step S20, the method comprises in the present embodiment:
Step S30, name a person for a particular job system banner and the wireless service information of record of described the first wireless access sends to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the system banner that receives and wireless service Information generation the first WAP (wireless access point) and adjacent the second WAP (wireless access point).
In the present embodiment, the first wireless access name a person for a particular job record system banner and wireless service information send to WAP (wireless access point) controller, WAP (wireless access point) controller is receiving after the system banner and wireless service information of each first WAP (wireless access point) transmission, gather and generate the position relationship comprising between the first WAP (wireless access point) and each WAP (wireless access point) of the second WAP (wireless access point) and preserve, WAP (wireless access point) is controlled according to the position relationship of each WAP (wireless access point) of its preservation for WAP (wireless access point) controller.
With reference to Fig. 3, Fig. 3 is the schematic flow sheet of recognition methods the 3rd embodiment of the adjacent WAP (wireless access point) of the present invention.
Propose recognition methods the 3rd embodiment of the adjacent WAP (wireless access point) of the present invention based on the first embodiment and the second embodiment, before step S10, comprise in the present embodiment:
Step S40, the second WAP (wireless access point) in the time powering on, generate comprise described WAP (wireless access point) system banner and the identification packet of wireless service information;
Step S50, the identification packet that described the second WAP (wireless access point) broadcast generates.
The first wireless network access points and the second WAP (wireless access point) are in the time of access to LAN, WAP (wireless access point) controller issues radio network configuration to the first wireless network access points and the second WAP (wireless access point), in this radio network configuration, comprise system banner and wireless service information, the first and second WAP (wireless access point) are preserved this radio network configuration.The second WAP (wireless access point) is in the time powering on, the identification packet of the system banner that generation comprises WAP (wireless access point) and wireless service information, the identification packet that broadcast generates simultaneously, this identification packet only terminal and the first WAP (wireless access point) in the signal cover in the second WAP (wireless access point) can receive, the first WAP (wireless access point) in the signal cover in the second WAP (wireless access point), receiving after the identification packet of this WAP (wireless access point) broadcast, can identify this WAP (wireless access point) and whether belong in same system with it.
With reference to Fig. 4, Fig. 4 is the schematic flow sheet of recognition methods the 4th embodiment of the adjacent WAP (wireless access point) of the present invention.
Recognition methods the 4th embodiment that proposes the adjacent WAP (wireless access point) of the present invention based on the first to the 3rd embodiment, in the present embodiment, the method also comprises:
Step S60, the channel list that described the first WAP (wireless access point) issues according to described WAP (wireless access point) controller, carries out channel switching successively;
Step S10, when described the first WAP (wireless access point) receives packet, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of the second WAP (wireless access point);
Step S20, in the time that the packet receiving is identification packet, system banner and wireless service information in the packet that the first WAP (wireless access point) record receives, and using the system banner of record and corresponding the second WAP (wireless access point) of wireless service information as neighboring access point;
Step S70, continue execution step S60 until switched all channels in the channel list receiving, described system banner and the wireless service information of record are sent to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the system banner that receives and wireless service Information generation the first WAP (wireless access point) with and the position relationship of adjacent the second WAP (wireless access point).
In WLAN (wireless local area network), may there is the different situation of channel between adjacent WAP (wireless access point), the first WAP (wireless access point) now need the first WAP (wireless access point) to carry out channel switching, so that can receive the identification packet of its second adjacent WAP (wireless access point) broadcast.The first WAP (wireless access point), in the time carrying out channel switching, first switches to the first channel according to default order, if do not receive packet within the default time interval, switches to other channel according to default order, if receive packet within the default time interval, and the packet receiving is identification packet, system banner and wireless service information in the packet that the first WAP (wireless access point) record receives, and using record system banner and corresponding the second WAP (wireless access point) of wireless service information as neighboring access point, then continue to switch to other channel according to default order, or in the time that arriving, continues in the default time interval to switch to other channel according to default order, when guaranteeing that the first WAP (wireless access point) has multiple the second adjacent WAP (wireless access point), receive the identification packet of multiple the second WAP (wireless access point) broadcast, the rest may be inferred, until switched all channels.
In the present embodiment, can carry out channel switching by WAP (wireless access point) controller control the first WAP (wireless access point), WAP (wireless access point) controller issues channel switching command according to default priority to each first WAP (wireless access point), and the first WAP (wireless access point) is carried out channel switching according to the channel list in the channel switching command issuing or the channel list of preservation; Or the first WAP (wireless access point) is carried out channel switching according to default time point, to guarantee not carry out channel switching between signal access point simultaneously.Above-mentioned two schemes is only enumerating of the first WAP (wireless access point) scheme of carrying out channel switching; do not represent in the present embodiment that the first WAP (wireless access point) carries out only adopting when channel switches above-mentioned two schemes; other variant embodiment proposing according to this scheme is carried out channel switching to realize the first WAP (wireless access point), all in protection scope of the present invention.
The scheme that the present embodiment proposes, can guarantee that the first WAP (wireless access point) receives the identification packet of second WAP (wireless access point) different from its channel, so that more accurate to the identification of adjacent WAP (wireless access point).
With reference to Fig. 5, Fig. 5 is the schematic flow sheet of recognition methods the 5th embodiment of the adjacent WAP (wireless access point) of the present invention.
Propose recognition methods the 5th embodiment of the adjacent WAP (wireless access point) of the present invention based on the 4th embodiment, before step S10, also comprise in the present embodiment:
Step S80, described first system banner of WAP (wireless access point) broadcast request WAP (wireless access point) and the request data package of wireless service information.
The identification packet that comprises system banner and wireless service information due to the second WAP (wireless access point) fixed time broadcast, after the first WAP (wireless access point) is carried out channel switching, possibly cannot within the shorter time interval, get the identification packet of its second adjacent WAP (wireless access point) broadcast, the first WAP (wireless access point) need to be after carrying out channel switching, the system banner of broadcast request the second WAP (wireless access point) and the request data package of wireless service information, the second WAP (wireless access point) is in the time receiving this request data package, identification packet to this first WAP (wireless access point) feedback packet containing its system banner and wireless service information, this first WAP (wireless access point) is in the time receiving this identification packet, obtain and register system mark and wireless service information, carry out channel next time according to default channel transfer sequence switches simultaneously.
With reference to Fig. 6, Fig. 6 is the high-level schematic functional block diagram of WAP (wireless access point) the first embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention.
The present embodiment proposes a kind of recognition system of adjacent WAP (wireless access point), comprises multiple WAP (wireless access point), and wherein each WAP (wireless access point) comprises:
The wireless data packet type that the WAP (wireless access point) at determination module 10 places receives comprises: the identification packet that what other WAP (wireless access point) was broadcasted after powering on comprise its wireless service information; The identification packet that other WAP (wireless access point) sends to the WAP (wireless access point) at determination module 10 places by the mode of bridge joint; And the terminal of the WAP (wireless access point) at access determination module 10 places, the wireless data packet sending to the WAP (wireless access point) at determination module 10 places; The identification packet of other wireless access fixed time broadcast.
In the present embodiment, determination module 10 is determined when whether the packet receiving is identification packet, can decode to the packet receiving, and judge in decoded packet, whether have system banner and wireless service information, in the time having system banner and wireless service information in decoded packet, determination module 10 determines that this packet is identification packet; Or also can in packet, add the first-class mark of mark, in this mark, comprise system banner and wireless service information, in the time receiving packet, determination module 10 directly obtains the marking head of packet, in the time that the marking head of packet has system banner and wireless service information, determination module 10 determines that this packet is identification packet.
Other WAP (wireless access point) can identify and wireless service information by add-on system in the wireless data packet of its transmission, to identify the identity of other WAP (wireless access point), system banner can comprise the physical address of other wireless access point device, and wireless service information can comprise the wireless network identification that other WAP (wireless access point) provides.Other WAP (wireless access point) can, by expand IE field in packet, identify the identity of other WAP (wireless access point) in the present embodiment, and this identification field comprises system banner and the wireless service information of air pressure WAP (wireless access point).
In the present embodiment, the WAP (wireless access point) at determination module 10 places must be in the signal cover of other WAP (wireless access point), the WAP (wireless access point) at these determination module 10 places just can receive the wireless data packet that other WAP (wireless access point) sends, now other WAP (wireless access point) is as the adjacent WAP (wireless access point) of the WAP (wireless access point) at determination module 10 places, illustrates in the present embodiment in the signal cover of determination module 10 WAP (wireless access point) in its other adjacent WAP (wireless access point).
In the present embodiment, the WAP (wireless access point) at determination module 10 places can generate the list of its other adjacent WAP (wireless access point), this list comprises system banner and the wireless service information of other WAP (wireless access point) being adjacent, WAP (wireless access point) controller can be controlled and parameter adjustment WAP (wireless access point) accordingly according to system banner and wireless service information, and the scheme of concrete control and parameter adjustment is as follows:
1), the signal strength signal intensity of WAP (wireless access point) and channel adjustment, WAP (wireless access point) controller get access point positional information after, the signal strength signal intensity of adjustable adjacent WAP (wireless access point), so that in order to avoid there is the situation that signal disturbs in adjacent WAP (wireless access point) no signal overlapping region; And adjust the channel of adjacent WAP (wireless access point), make adjacent WAP (wireless access point) adopt different channels to carry out the forwarding of packet, to avoid adjacent WAP (wireless access point) to interfere with each other;
2), the AP redundancy of adjacent WAP (wireless access point) is adjusted: when the quantity of the terminal accessing in WAP (wireless access point) exceedes pre-set threshold value, WAP (wireless access point) controller can access adjacent WAP (wireless access point) by other terminal of request access, and now this WAP (wireless access point) and adjacent WAP (wireless access point) thereof provide identical wireless network identification;
3) detect illegal IP, when the system banner in the identification packet that WAP (wireless access point) receives, when different from the system banner of WAP (wireless access point) itself, illustrate that this WAP (wireless access point) does not belong in native system, the system banner that record can be got and wireless service information reporting, to WAP (wireless access point) controller, remind this WAP (wireless access point) of WAP (wireless access point) controller not belong in native system (WLAN (wireless local area network)).
Other WAP (wireless access point) is in the time adopting specific identify label to carry out identification data bag and whether be identification packet, after the WAP (wireless access point) at determination module 10 places is decoded to the wireless data packet receiving, if there is no system banner and wireless service information in decoded wireless data packet, illustrate that this wireless data packet is the wireless data packet of normally carrying out data interaction, the WAP (wireless access point) at determination module 10 places is carried out normal process to this packet, as forwards this packet; When adding identify label carry out identification data bag and whether be identification packet in marking head, if identify label is not set in marking head, illustrate that this wireless data packet is the wireless data packet of normally carrying out data interaction, the WAP (wireless access point) at determination module 10 places is carried out normal process to this packet, as forwards this packet; Further, if do not comprise the system banner of WAP (wireless access point) in identify label, illustrate that this WAP (wireless access point) is not in native system.
The recognition system of the adjacent WAP (wireless access point) that the present embodiment proposes, in the time that the signal cover between WAP (wireless access point) is overlapping, the WAP (wireless access point) at determination module 10 places receives the packet that other WAP (wireless access point) overlapping with its signal cover sends, comprise system banner and wireless service information in the packet receiving time, illustrate that this packet is that other adjacent WAP (wireless access point) sends, can automatically identify other adjacent WAP (wireless access point) of WAP (wireless access point) at determination module 10 places, to determine the position relationship between each WAP (wireless access point), identification cost is lower.
With reference to Fig. 7, Fig. 7 is the high-level schematic functional block diagram of WAP (wireless access point) the second embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention.
WAP (wireless access point) the second embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention is proposed based on the first embodiment, described WAP (wireless access point) also comprises the first sending module 30 in the present embodiment, for the system banner of record and wireless service information are sent to WAP (wireless access point) controller, the position relationship of the WAP (wireless access point) that the system banner receiving for WAP (wireless access point) controller basis and wireless service Information generation are adjacent.
In the present embodiment, the wireless access at determination module 10 places name a person for a particular job record system banner and wireless service information send to WAP (wireless access point) controller, after system banner and wireless service information that WAP (wireless access point) controller sends in the WAP (wireless access point) that receives each determination module 10 places, gather the position relationship generating between each WAP (wireless access point) and preserve, WAP (wireless access point) being controlled according to the position relationship of the WAP (wireless access point) of its preservation for WAP (wireless access point) controller.
With reference to Fig. 8, Fig. 8 is the high-level schematic functional block diagram of WAP (wireless access point) the 3rd embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention.
WAP (wireless access point) the 3rd embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention is proposed based on the first and second embodiment, described WAP (wireless access point) also comprises generation module 40 and the second sending module 50 in the present embodiment, for in the time powering on, described generation module 40 generates the system banner that comprises WAP (wireless access point) and the identification packet of wireless service information; The identification packet of described the second sending module for broadcasting generation.
Other wireless network access points is in the time of access to LAN, other WAP (wireless access point) controller issues radio network configuration to WAP (wireless access point), in this radio network configuration, comprise system banner and wireless service information, other WAP (wireless access point) is preserved this radio network configuration, and in the time powering on, the system banner that other wireless access dot generation comprises WAP (wireless access point) and the identification packet of wireless service information, the identification packet that broadcast generates, this identification packet only terminal in the signal cover in other WAP (wireless access point) and the WAP (wireless access point) at determination module 10 places can receive, the WAP (wireless access point) at determination module 10 places in the signal cover in other WAP (wireless access point), receiving after the identification packet of other WAP (wireless access point) broadcast, whether can identify this WAP (wireless access point) belongs in same system with it.
With reference to Fig. 9, Fig. 9 is the high-level schematic functional block diagram of WAP (wireless access point) the 4th embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention.
WAP (wireless access point) the 4th embodiment in the recognition system of the adjacent WAP (wireless access point) of the present invention is proposed based on the first to the 3rd embodiment, described WAP (wireless access point) also comprises channel handover module 60, for the channel list issuing according to described WAP (wireless access point) controller, carry out successively channel switching; Described determination module 10, also for carrying out after channel switching, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of other WAP (wireless access point); Described channel handover module 60 is also for after the described system banner and wireless service information of described logging modle 20 record data bags, continue the channel list issuing according to described WAP (wireless access point) controller, carry out successively channel switching, until switched all channels in the channel list receiving; This WAP (wireless access point) also comprises the 3rd sending module 70, for described system banner and the wireless service information of record are sent to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the radio node at the system banner that receives and wireless service Information generation determination module 10 places with and the position relationship of adjacent other WAP (wireless access point).
WAP (wireless access point) in WLAN (wireless local area network), may there is the different situation of channel between adjacent WAP (wireless access point), now need WAP (wireless access point) to carry out channel switching, so that can receive the identification packet of its adjacent WAP (wireless access point) broadcast.The WAP (wireless access point) at determination module 10 places is in the time carrying out channel switching, first channel handover module 60 switches to the first channel according to default order, if do not receive packet within the default time interval, channel handover module 60 switches to other channel according to default order, within the default time interval, receive packet, and when the packet receiving is identification packet, system banner and wireless service information in the packet that logging modle 20 records receive, and using record system banner and corresponding other WAP (wireless access point) of wireless service information as neighboring access point, channel handover module 60 continues to switch to other channel according to default order, or in the time that the default time interval arrives, channel handover module 60 continues to switch to other channel according to default order, while having multiple neighboring access point with the WAP (wireless access point) at assurance determination module 10 places, can receive the identification packet of multiple WAP (wireless access point) broadcast, the rest may be inferred, until switched all channels.
In the present embodiment, can carry out channel switching by the WAP (wireless access point) at WAP (wireless access point) controller control determination module 10 places, WAP (wireless access point) controller issues channel switching command according to default priority to the WAP (wireless access point) at determination module 10 places, and channel handover module 60 carries out channel switching according to the channel list in the channel switching command issuing or the channel list of preservation; Or channel handover module 60 carries out channel switching according to default time point or the time interval, to guarantee not carry out channel switching between signal access point simultaneously.Above-mentioned two schemes only carries out the enumerating of scheme of channel switching for channel handover module 60; do not represent in the present embodiment that channel handover module 60 carries out only adopting when channel switches above-mentioned two schemes; other variant embodiment proposing according to this scheme is carried out channel switching to realize WAP (wireless access point), all in protection scope of the present invention.
The scheme that the present embodiment proposes, can guarantee that the WAP (wireless access point) at determination module 10 places receives the identification packet of other WAP (wireless access point) different from its channel, so that more accurate to the identification of adjacent WAP (wireless access point).
In recognition system the 4th embodiment of the adjacent WAP (wireless access point) of the present invention, described the 3rd sending module 70 is also for carrying out after channel switching at signal handover module 60, the request data package of the system banner of broadcast request WAP (wireless access point) and wireless service information.
The identification packet that comprises system banner and wireless service information due to other WAP (wireless access point) fixed time broadcast, after channel handover module 60 carries out channel switching, possibly cannot within the shorter time interval, get the identification packet of its adjacent WAP (wireless access point) broadcast, now channel handover module 60 is after carrying out channel switching, the 3rd system banner of sending module 70 broadcast request WAP (wireless access point) and the request data package of wireless service information, other wireless access is in the time receiving this request data package, contain the identification packet of its system banner and wireless service information to the WAP (wireless access point) feedback packet at the 3rd sending module 70 places, this logging modle 20 is in the time receiving identification packet, obtain and register system mark and wireless service information, channel handover module 60 carries out channel switching next time according to default order simultaneously.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a recognition methods for adjacent WAP (wireless access point), is characterized in that, comprising:
The first WAP (wireless access point), in the time receiving packet, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of the second WAP (wireless access point);
In the time that the packet receiving is identification packet, system banner and wireless service information in the packet that described the first WAP (wireless access point) record receives, and using the system banner of record and corresponding the second WAP (wireless access point) of wireless service information as neighboring access point.
2. method according to claim 1, it is characterized in that, it is described in the time that the packet receiving is identification packet, system banner and wireless service information in the packet that described the first WAP (wireless access point) record receives, and using record system banner and corresponding the second WAP (wireless access point) of wireless service information after the step of neighboring access point, the method comprises:
Name a person for a particular job system banner and the wireless service information of record of described the first wireless access sends to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the system banner that receives and wireless service Information generation the first WAP (wireless access point) and adjacent the second WAP (wireless access point).
3. method according to claim 1, it is characterized in that, described the first WAP (wireless access point) is in the time receiving packet, determine whether the packet receiving is identification packet, before described identification packet comprises the system banner of the second WAP (wireless access point) and the step of wireless service information, the method comprises:
Described the second WAP (wireless access point) in the time powering on, generate comprise described the second WAP (wireless access point) system banner and the identification packet of wireless service information;
The identification packet that described the second WAP (wireless access point) broadcast generates.
4. method according to claim 1, is characterized in that, the method also comprises:
The channel list that A, described the first WAP (wireless access point) issue according to WAP (wireless access point) controller, carries out channel switching successively;
When B, described the first WAP (wireless access point) receive packet, determine whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of the second WAP (wireless access point);
C, at the packet receiving while being identification packet, system banner and wireless service information in the packet that described the first WAP (wireless access point) record receives, and using the system banner of record and corresponding the second WAP (wireless access point) of wireless service information as neighboring access point;
D, continuation execution step A are until switched all channels in the channel list receiving, described system banner and the wireless service information of record are sent to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the system banner that receives and wireless service Information generation the first WAP (wireless access point) and adjacent the second WAP (wireless access point).
5. method according to claim 4, is characterized in that, before step B, the method comprises:
Described first system banner of WAP (wireless access point) broadcast request WAP (wireless access point) and the request data package of wireless service information.
6. a recognition system for adjacent WAP (wireless access point), is characterized in that, comprises multiple WAP (wireless access point), and wherein each WAP (wireless access point) comprises:
Determination module, in the time receiving packet, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of other WAP (wireless access point);
Logging modle, for in the time that the packet receiving is identification packet, record receive packet in system banner and wireless service information, and using record system banner and corresponding other WAP (wireless access point) of wireless service information as neighboring access point.
7. system according to claim 6, it is characterized in that, described WAP (wireless access point) also comprises the first sending module, for the system banner of record and wireless service information are sent to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the WAP (wireless access point) at the system banner receiving and wireless service Information generation determination module place and adjacent other access point.
8. system according to claim 6, it is characterized in that, described WAP (wireless access point) also comprises generation module and the second sending module, described generation module, in the time powering on, generates the system banner of WAP (wireless access point) and the identification packet of wireless service information that comprise described generation module place; The identification packet of described the second sending module for broadcasting generation.
9. system according to claim 6, is characterized in that, described WAP (wireless access point) also comprises channel handover module, for the channel list issuing according to WAP (wireless access point) controller, carries out successively channel switching; Described determination module, also for carrying out after channel switching, determines whether the packet receiving is identification packet, and described identification packet comprises system banner and the wireless service information of other WAP (wireless access point); Described channel handover module is also for after the described system banner and wireless service information at packet in described logging modle, continue the channel list issuing according to described WAP (wireless access point) controller, carry out successively channel switching, until switched all channels in the channel list receiving; This WAP (wireless access point) also comprises the 3rd sending module, for described system banner and the wireless service information of record are sent to WAP (wireless access point) controller, for WAP (wireless access point) controller according to the position relationship of the WAP (wireless access point) at the system banner that receives and wireless service Information generation determination module place and adjacent other WAP (wireless access point).
10. system according to claim 9, is characterized in that, described the 3rd sending module is also for carrying out after channel switching at channel handover module, the request data package of the system banner of broadcast request WAP (wireless access point) and wireless service information.
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