CN104811923B - A kind of method and apparatus of radio roaming - Google Patents
A kind of method and apparatus of radio roaming Download PDFInfo
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- CN104811923B CN104811923B CN201510152065.2A CN201510152065A CN104811923B CN 104811923 B CN104811923 B CN 104811923B CN 201510152065 A CN201510152065 A CN 201510152065A CN 104811923 B CN104811923 B CN 104811923B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
Abstract
The invention discloses a kind of method and apparatus of radio roaming, this method includes：AC equipment obtains the AP information of each AP equipment, and obtains the corresponding route planning information of wireless client；Route planning information and the AP information described in the AC equipment utilizations, determine AP equipment of the wireless client by path, and the AP information of currently determining AP equipment is added in AP list of devices；The AP list of devices is sent to the wireless client by the AC equipment, so that the wireless client selects AP equipment using the AP information in the location information and the AP list of devices of current location, and carries out radio roaming using the AP equipment currently selected.In the embodiment of the present invention, wireless client saves the time of roaming scanning, accelerates roam speed, packet loss probability is small, and delay is small without carrying out scan channel.
Description
Technical field
The present invention relates to fields of communication technology, more particularly, to a kind of method and apparatus of radio roaming.
Background technology
LTE Fi (Long Term Evolution Wireless Fidelity, long term evolution Wireless Fidelity) equipment is made
For an AP used in mobile internet environment (Access Point, access point) equipment, the nothing of LTE system can be utilized
Line real-time performance WLAN (Wireless Local Area Networks, WLAN) is covered, and realizes unified webmaster,
Support that user is authenticated and charging to WiFi (Wireless Fidelity, Wireless Fidelity).Currently, LTE Fi equipment can be with
It is flexibly deployed in any place for there are 3G/4G signals to cover, such as mobile public transport environment, bus stop board, high ferro, outdoor advertising board
Etc. mobile environment.
Radio roaming is a kind of wireless client behavior, when detection reach roaming threshold value when, wireless client it is each can
With channel search more suitably AP equipment, association is actively initiated, to obtain better quality of wireless services.Specifically, wireless visitor
Family end receives the detection response message that each AP equipment returns in each available channel broadcast transmission the probe requests message.Wirelessly
Client collects the detection response message of each available channel, to select best AP equipment to carry out radio roaming, to obtain
Better quality of wireless services.
Wireless client is during each available channel searches for more suitably AP equipment, due to wireless client at this time
It is operated in scanning and collects state, therefore, wireless client cannot handle the data message of current AP equipment, and can cause data
The loss of message and delay.When the scanning behavior of wireless client devotes a tremendous amount of time, nothing is applied for voice, video etc.
Method processing, can deteriorate the experience effect of user.
Invention content
The embodiment of the present invention provides a kind of method of radio roaming, the described method comprises the following steps：
Access controller AC equipment obtains the AP information of each access point AP equipment of the AC equipment managements, and obtains wireless
Client is by the corresponding route planning information in path；
Route planning information and the AP information described in the AC equipment utilizations, determine AP of the wireless client by path
Equipment, and the AP information of the AP equipment currently determined is added in AP list of devices；
The AP list of devices is sent to the wireless client by the AC equipment, so that the wireless client utilizes
AP information in the location information of this wireless client current location and the AP list of devices selects AP equipment, and using currently
The AP equipment of selection carries out radio roaming.
The method further includes：
When the AC equipment receives the location information of the current location of wireless client transmission, the location information is utilized
The corresponding AP equipment in the wireless client current location is determined with the AP information of each AP equipment；
The AP information of the determining corresponding AP equipment in the wireless client current location is sent to the nothing by the AC equipment
Line client carries out radio roaming by it using determining AP equipment.
The AP information specifically includes one of following information or arbitrary combination：It is the corresponding AP name information of AP equipment, complete
Ball position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, load
Situation information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is passing through
The corresponding GPS information in path, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
The embodiment of the present invention provides a kind of method of radio roaming, the described method comprises the following steps：
The wireless client is sent to access controller by wireless client by the corresponding route planning information in path
AC equipment, so that the AP information of each access point AP equipment of AC equipment managements described in the AC equipment utilizations and the path planning
Information determines AP equipment of the wireless client by path, and currently determining AP equipment is added in AP list of devices
AP information；
The wireless client receives the AP list of devices from the AC equipment；
The wireless client selects AP using the AP information in the location information and the AP list of devices of current location
Equipment, and carry out radio roaming using the AP equipment currently selected.
The method further includes：
When carrying out radio roaming failure using the AP equipment that currently selects, the wireless client is by the position of current location
Confidence breath is sent to the AC equipment；
It is true that the wireless client receives the AP information from location information and each AP equipment described in the AC equipment utilizations
The AP information of the fixed corresponding AP equipment in the wireless client current location；
The wireless client carries out radio roaming using the AP equipment of the determination.
The AP information specifically includes one of following information or arbitrary combination：It is the corresponding AP name information of AP equipment, complete
Ball position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, load
Situation information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is passing through
The corresponding GPS information in path, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
The embodiment of the present invention provides a kind of access controller AC equipment, and the AC equipment specifically includes：
Module, the AP information of each access point AP equipment for obtaining the AC equipment managements are obtained, and obtains wireless visitor
Family end is by the corresponding route planning information in path；
Determining module determines wireless client by path for utilizing the route planning information and the AP information
AP equipment, the AP information of currently determining AP equipment is added in AP list of devices；
Sending module, for the AP list of devices to be sent to the wireless client, so that the wireless client
AP equipment, and profit are selected using the AP information in the location information and the AP list of devices of the wireless client current location
Radio roaming is carried out with the AP equipment currently selected.
The acquisition module is additionally operable to receive the location information for the current location that wireless client is sent；
The determining module is additionally operable to determine the wireless client using the AP information of the location information and each AP equipment
The corresponding AP equipment in current location；
The sending module is additionally operable to the AP information hair for the corresponding AP equipment in the wireless client current location that will be determined
The wireless client is given, radio roaming is carried out using determining AP equipment by it.
The AP information specifically includes one of following information or arbitrary combination：It is the corresponding AP name information of AP equipment, complete
Ball position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, load
Situation information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is passing through
The corresponding GPS information in path, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
The embodiment of the present invention provides a kind of wireless client, and the wireless client specifically includes：
Sending module, for the wireless client to be sent to access control by the corresponding route planning information in path
Device AC equipment, so that the AP information of each access point AP equipment of AC equipment managements described in the AC equipment utilizations and path rule
It draws information and determines AP equipment of the wireless client by path, and add currently determining AP equipment in AP list of devices
AP information；
Receiving module, for receiving the AP list of devices from the AC equipment；
Roam module is set for the AP information selection AP in the location information and the AP list of devices using current location
It is standby, and carry out radio roaming using the AP equipment currently selected.
The sending module is additionally operable to when carrying out radio roaming failure using the AP equipment currently selected, by present bit
The location information set is sent to the AC equipment；
The receiving module is additionally operable to receive from location information described in the AC equipment utilizations and the AP of each AP equipment letters
Cease the AP information of the determining corresponding AP equipment in the wireless client current location；
The roam module is additionally operable to carry out radio roaming using the AP equipment of the determination.
The AP information specifically includes one of following information or arbitrary combination：It is the corresponding AP name information of AP equipment, complete
Ball position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, load
Situation information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is passing through
The corresponding GPS information in path, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
Based on the above-mentioned technical proposal, in the embodiment of the present invention, AC (Access Controller, access controller) equipment
The route planning information that wireless client can be utilized to plan in advance, provides the AP list of devices of fixation action circuit to wireless visitor
Family end, wireless client are roamed according to this AP list of devices, and without carrying out scan channel, saving roams the time of scanning,
It saves and searches net sweep time before wireless client terminal roam, accelerate roam speed.Due to there is no channel scan procedure, lose
Packet probability is small, and delay is small.Contribute to the load balancing between AP equipment, improves the success rate of wireless client terminal roam.Into one
Step, AC equipment can utilize the location information of wireless client current location, push near wireless client current location
AP equipment is roamed to wireless client, wireless client according to this AP equipment, without carrying out scan channel, is saved roaming and is swept
The time retouched saves and searches net sweep time before wireless client terminal roam, accelerates roam speed.Due to there is no scan channel mistake
Journey, therefore packet loss probability is small, delay is small.Contribute to the load balancing between AP equipment, improve wireless client terminal roam at
Power.
Description of the drawings
Fig. 1 is the application scenarios schematic diagram of the embodiment of the present invention；
Fig. 2 is a kind of method flow schematic diagram of radio roaming provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of AC equipment provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of wireless client provided in an embodiment of the present invention.
Specific implementation mode
For problems of the prior art, an embodiment of the present invention provides a kind of method of radio roaming, this method
Applied in the wlan network including wireless client, AC equipment and AP equipment.Using Fig. 1 as the application scenarios of the embodiment of the present invention
Schematic diagram, AP equipment can be LTE Fi equipment, and the AP that LTE Fi equipment is used as one in mobile internet environment is set
It is standby, it can be flexibly deployed in any place for there are 3G/4G signals to cover, such as mobile public transport environment, bus stop board, high ferro, room
The mobile environment such as outer billboard.Wherein, AP equipment (such as LTE Fi equipment) is internally provided with GPS (Global Positioning
System, global positioning system) chip, the GPS information of this AP equipment can be navigated to, so that AC equipment can learn current AP
The GPS information of equipment, to obtain the wireless service coverage condition in the AP equipment of certain GPS location.In addition, wireless client is
Support the mobile device of GPS functions.
Under above application scene, as shown in Fig. 2, the method for the radio roaming includes the following steps：
Step 201, AC equipment obtains the AP information of each AP equipment of this AC equipment managements, and obtains wireless client process
The corresponding route planning information in path.
Wherein, AP information is specifically including but not limited to one of following information or arbitrary combination：AP equipment is AP corresponding
Claim information, GPS information, radio-frequency information, working frequency range information, SSID (Service Set Identifier, service set)
Information, work state information, loading condition information.
Route planning information is specifically including but not limited to one of following information or arbitrary combination：Wireless client is passing through
(for example, when wireless client fixes action circuit by A, B, C, then wireless client is through passing by one's way for the corresponding GPS information in path
The corresponding GPS information of diameter includes the GPS information of place A, the GPS information of the GPS information of place B, place C), wireless network card radio frequency
Information, SSID information.
For each AP equipment of AC equipment managements, the AP information of this AP equipment can be directly reported to AC and set by each AP equipment
It is standby, by the storage of AC equipment, record and update the AP information of each AP equipment.As shown in table 1, it is each AP equipment of AC plant maintenances
A kind of sample situation of AP information.
Table 1
| AP name | GPS | Radio frequency | Working frequency range | SSID | Working condition | Loading condition |
| AP1 | GPS1 | 2.4G | channel 6 | CMCC | Normally | It is idle |
| AP2 | GPS2 | 2.4G | channel 6 | CMCC | Normally | It is idle |
| AP3 | GPS3 | 5G | channel 140 | CMCC | Normally | It is busy |
| AP4 | GPS4 | 5G | channel 140 | CMCC | It is abnormal | It is idle |
For wireless client, wireless client can be by this wireless client by the corresponding route planning information in path
It is sent to AC equipment, as wireless client can utilize the places A that the road figure of navigation software offer passes through this wireless client
It is sent to AC equipment to all route planning informations between the places B.Wherein, the GPS information in different route planning informations
Difference, the wireless network card radio-frequency information in different route planning informations is identical, the SSID letters in different route planning informations
Manner of breathing is same.Further, AC plant maintenances wireless client is by the corresponding route planning information in path.As shown in table 2, it is AC
The wireless client 1 of plant maintenance by the corresponding route planning information in path a kind of sample situation.
Table 2
Step 202, AC equipment utilizations route planning information and AP information determine that wireless client is set by the AP in path
It is standby, and the AP information of the AP equipment currently determined is added in AP list of devices.
For example, based on route planning information, the path that wireless client passes through shown in AP information shown in table 1 and table 2
Planning information includes GPS1, GPS2, GPS3 and GPS4, and the wireless service that AP1 is provided covers GPS1, the wireless service that AP2 is provided
GPS2 is covered, the wireless service that AP3 is provided covers GPS3, and the wireless service that AP4 is provided covers GPS4.Therefore, AC equipment determines
Wireless client is respectively AP1, AP2, AP3 and AP4 by the AP equipment in path, and can add AP1 in AP list of devices
AP information, the AP information of AP2, the AP information of AP3, the AP information of AP4.
Step 203, AP list of devices is sent to wireless client by AC equipment, so that wireless client reception is set from AC
Standby AP list of devices, and the AP list of devices is preserved on this wireless client.
Step 204, wireless client is using in the location information and AP list of devices of this wireless client current location
AP information selects AP equipment, and carries out radio roaming using the AP equipment currently selected.
Wherein, location information is specifically including but not limited to one of following information or arbitrary combination：Wireless client is being worked as
(for example, when the current location of wireless client is place A, then the GPS information of current location is place A to the GPS information of front position
GPS information), wireless network card radio-frequency information, SSID information.
AP information of the wireless client in location information and AP list of devices using this wireless client current location
When selecting AP equipment, wireless client selects and the GPS information of current location (one kind of location information) out of AP list of devices
Corresponding AP equipment.For example, when the GPS information of this wireless client current location is GPS1, then selected out of AP list of devices
Select AP1 corresponding with GPS1.
In the embodiment of the present invention, when AP equipment corresponding with the GPS information of current location is multiple, then it is based on AP equipment
The AP information of this multiple AP equipment recorded in list：(1) wireless if there is the radio-frequency information of AP equipment and wireless client
Network interface card radio-frequency information is identical, has the radio-frequency information of AP equipment different from the wireless network card radio-frequency information of wireless client, then wirelessly
Client selects radio-frequency information AP equipment identical with the wireless network card radio-frequency information of wireless client by preferential.(2) if there is
The SSID information of AP equipment is identical as the SSID information of wireless client, there is the SSID information and wireless client of AP equipment
SSID information is different, then wireless client sets preferential selection SSID information AP identical with the SSID information of wireless client
It is standby.(3) if there is the work state information of AP equipment is normal, it is exception to have the work state information of AP equipment, then wireless visitor
Family end will preferentially select work state information for normal AP equipment.(4) if there is the loading condition information of AP equipment is the free time,
It is busy to have the loading condition information of AP equipment, then wireless client selects loading condition information to be set for idle AP by preferential
It is standby.
In the embodiment of the present invention, during wireless client carries out radio roaming using the AP equipment currently selected,
When triggering roaming threshold value, wireless client no longer scans channel, but is selected according to the GPS information of wireless client current location
One nearest AP equipment, and on working channel uni-cast probe request message is sent to this AP equipment.If in preset time
The detection response message of this AP equipment return is inside received, then wireless client initiates association request, radio roaming with this AP equipment
Success.If not receiving the detection response message of this AP equipment return in preset time, wireless client is again to this AP
Equipment sends uni-cast probe request message.And so on, if after sending the uni-cast probe request message of preset times, wireless visitor
Family end does not receive the detection response message of this AP equipment return, then radio roaming fails.
In the embodiment of the present invention, when carrying out radio roaming failure using the AP equipment currently selected, wireless client will
The location information of this wireless client current location is sent to AC equipment.When AC equipment receives the present bit of wireless client transmission
When the location information set, using the AP information of the location information and each AP equipment, determine that the wireless client current location corresponds to
AP equipment.The AP information of the determining corresponding AP equipment in the wireless client current location is sent to the wireless visitor by AC equipment
Family end.Later, wireless client carries out radio roaming using determining AP equipment.
AP information of the AC equipment in location information (such as GPS information) and each AP equipment using wireless client current location
(as shown in table 1), when determining the corresponding AP equipment in wireless client current location, AC equipment is from each AP equipment shown in table 1
Selection AP equipment corresponding with the GPS information of wireless client current location.For example, as the GPS of wireless client current location
When information GPS1, then wireless client selects AP1 corresponding with GPS1 from each AP equipment.
In the embodiment of the present invention, when AP equipment corresponding with the GPS information of wireless client current location is multiple, then
AP information based on this multiple AP equipment in each AP equipment shown in table 1：(1) if there is the radio-frequency information of AP equipment and wirelessly
The wireless network card radio-frequency information of client is identical, there is the radio-frequency information of AP equipment and the wireless network card radio-frequency information of wireless client
Difference, then AC equipment will preferential selection radio-frequency information AP equipment identical with the wireless network card radio-frequency information of wireless client.(2)
If there is the SSID information of AP equipment is identical as the SSID information of wireless client, there are the SSID information and wireless client of AP equipment
The SSID information at end is different, then AC equipment sets preferential selection SSID information AP identical with the SSID information of wireless client
It is standby.(3) if there is the work state information of AP equipment is normal, it is exception to have the work state information of AP equipment, then AC equipment
It will preferentially select work state information for normal AP equipment.(4) if there is the loading condition information of AP equipment is the free time, there is AP
The loading condition information of equipment is busy, then AC equipment selects loading condition information for idle AP equipment by preferential.
In the embodiment of the present invention, during wireless client carries out radio roaming using currently determining AP equipment,
When triggering roaming threshold value, wireless client no longer scans channel, but based on currently determining AP equipment, on working channel to
This AP equipment sends uni-cast probe request message.If receiving the detection response message of this AP equipment return in preset time,
Then wireless client initiates association request, radio roaming success with this AP equipment.If not receiving this AP in preset time to set
The standby detection response message returned, then wireless client is again to this AP equipment transmission uni-cast probe request message.And so on,
If after the uni-cast probe request message for sending preset times, wireless client does not receive the probe response of this AP equipment return
Message, then radio roaming failure.When radio roaming fails, then wireless client can be searched in the way of existing scan channel
Rope AP equipment, the process no longer repeat in detail herein.
Based on said program, AC equipment can utilize the route planning information that wireless client is planned in advance, provide fixation
To wireless client, wireless client is roamed the AP list of devices of action circuit according to this AP list of devices, without carrying out
Scan channel saves the time of roaming scanning, saves and searches net sweep time before wireless client terminal roam, accelerates roaming speed
Degree.Due to not having channel scan procedure, packet loss probability is small, and delay is small.Contribute to the load balancing between AP equipment, improves
The success rate of wireless client terminal roam.AC equipment can utilize the location information of wireless client current location, push wireless visitor
To wireless client, wireless client is roamed AP equipment near the current location of family end according to this AP equipment, without carrying out
Scan channel saves the time of roaming scanning, saves and searches net sweep time before wireless client terminal roam, accelerates roaming speed
Degree.Due to not having channel scan procedure, packet loss probability is small, and delay is small.Contribute to the load balancing between AP equipment, improves
The success rate of wireless client terminal roam.
Based on inventive concept same as the above method, a kind of access controller AC is additionally provided in the embodiment of the present invention and is set
It is standby, as shown in figure 3, the AC equipment specifically includes：
Module 11, the AP information of each access point AP equipment for obtaining the AC equipment managements are obtained, and is obtained wireless
Client is by the corresponding route planning information in path；Determining module 12, for utilizing the route planning information and the AP
Information determines AP equipment of the wireless client by path, and the AP letters of currently determining AP equipment are added in AP list of devices
Breath；Sending module 13, for the AP list of devices to be sent to the wireless client, so that the wireless client utilizes
AP information in the location information of the wireless client current location and the AP list of devices selects AP equipment, and utilizes and work as
The AP equipment of preceding selection carries out radio roaming.
The acquisition module 11 is additionally operable to receive the location information for the current location that wireless client is sent；
The determining module 12 is additionally operable to determine the wireless client using the AP information of the location information and each AP equipment
Hold the corresponding AP equipment in current location；
The sending module 13 is additionally operable to the AP information of the corresponding AP equipment in the wireless client current location that will be determined
It is sent to the wireless client, radio roaming is carried out using determining AP equipment by it.
The AP information specifically includes one of following information or arbitrary combination：It is the corresponding AP name information of AP equipment, complete
Ball position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, load
Situation information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is passing through
The corresponding GPS information in path, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
Wherein, the modules of apparatus of the present invention can be integrated in one, and can also be deployed separately.Above-mentioned module can close
And be a module, multiple submodule can also be further split into.
Based on inventive concept same as the above method, a kind of wireless client is additionally provided in the embodiment of the present invention, such as
Shown in Fig. 4, the wireless client specifically includes：
Sending module 21, for the wireless client to be sent to access control by the corresponding route planning information in path
Device AC equipment processed, so that the AP information of each access point AP equipment of AC equipment managements described in the AC equipment utilizations and the path
Planning information determines AP equipment of the wireless client by path, and adds currently determining AP in AP list of devices and set
Standby AP information；
Receiving module 22, for receiving the AP list of devices from the AC equipment；
Roam module 23, for selecting AP using the AP information in the location information and the AP list of devices of current location
Equipment, and carry out radio roaming using the AP equipment currently selected.
The sending module 21 is additionally operable to when carrying out radio roaming failure using the AP equipment currently selected, will be current
The location information of position is sent to the AC equipment；The receiving module 22 is additionally operable to receive from the AC equipment utilizations institute
State the AP information of the corresponding AP equipment in the wireless client current location of the AP information determination of location information and each AP equipment；
The roam module 23 is additionally operable to carry out radio roaming using the AP equipment of the determination.
The AP information specifically includes one of following information or arbitrary combination：It is the corresponding AP name information of AP equipment, complete
Ball position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, load
Situation information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is passing through
The corresponding GPS information in path, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
Wherein, the modules of apparatus of the present invention can be integrated in one, and can also be deployed separately.Above-mentioned module can close
And be a module, multiple submodule can also be further split into.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
Software adds the mode of required general hardware platform to realize, naturally it is also possible to which by hardware, but the former is more in many cases
Good embodiment.Based on this understanding, technical scheme of the present invention substantially in other words contributes to the prior art
Part can be expressed in the form of software products, which is stored in a storage medium, if including
Dry instruction is used so that a computer equipment (can be personal computer, server or the network equipment etc.) executes this hair
Method described in bright each embodiment.It will be appreciated by those skilled in the art that attached drawing is the schematic diagram of a preferred embodiment,
Module or flow in attached drawing are not necessarily implemented necessary to the present invention.It will be appreciated by those skilled in the art that in embodiment
Device in module can according to embodiment describe be distributed in the device of embodiment, respective change position can also be carried out
In one or more devices different from the present embodiment.The module of above-described embodiment can be merged into a module, can also
It is further split into multiple submodule.The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.With
Several specific embodiments of the upper disclosed only present invention, still, the present invention is not limited to this, any those skilled in the art
Member can think of variation should all fall into protection scope of the present invention.
Claims (12)
1. a kind of method of radio roaming, which is characterized in that the described method comprises the following steps：
Access controller AC equipment obtains the AP information of each access point AP equipment of the AC equipment managements, and obtains wireless client
End is by the corresponding route planning information in path；
Route planning information and the AP information described in the AC equipment utilizations, determine that wireless client is set by the AP in path
It is standby, and the AP information of the AP equipment currently determined is added in AP list of devices；
The AP list of devices is sent to the wireless client by the AC equipment, so that the wireless client utilizes this nothing
AP information in the location information of line client current location and the AP list of devices selects AP equipment, and utilizes current selection
AP equipment carry out radio roaming.
2. the method as described in claim 1, which is characterized in that the method further includes：
When the AC equipment receives the location information of the current location of wireless client transmission, using the location information and respectively
The AP information of AP equipment determines the corresponding AP equipment in the wireless client current location；
The AP information of the determining corresponding AP equipment in the wireless client current location is sent to the wireless visitor by the AC equipment
Family end carries out radio roaming by it using determining AP equipment.
3. method as claimed in claim 1 or 2, which is characterized in that
The AP information specifically includes one of following information or arbitrary combination：The corresponding AP name information of AP equipment, the whole world are fixed
Position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition
Information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is by path
Corresponding GPS information, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
4. a kind of method of radio roaming, which is characterized in that the described method comprises the following steps：
The wireless client is sent to access controller AC by the corresponding route planning information in path and set by wireless client
It is standby, so that the AP information of each access point AP equipment of AC equipment managements described in the AC equipment utilizations and the route planning information
It determines AP equipment of the wireless client by path, and adds the AP letters of currently determining AP equipment in AP list of devices
Breath；
The wireless client receives the AP list of devices from the AC equipment；
The wireless client selects AP equipment using the AP information in the location information and the AP list of devices of current location,
And carry out radio roaming using the AP equipment currently selected.
5. method as claimed in claim 4, which is characterized in that the method further includes：
When carrying out radio roaming failure using the AP equipment currently selected, the wireless client believes the position of current location
Breath is sent to the AC equipment；
The wireless client receives what the AP information from location information and each AP equipment described in the AC equipment utilizations determined
The AP information of the corresponding AP equipment in the wireless client current location；
The wireless client carries out radio roaming using the AP equipment of the determination.
6. method as described in claim 4 or 5, which is characterized in that
The AP information specifically includes one of following information or arbitrary combination：The corresponding AP name information of AP equipment, the whole world are fixed
Position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition
Information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is by path
Corresponding GPS information, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
7. a kind of access controller AC equipment, which is characterized in that the AC equipment specifically includes：
Module, the AP information of each access point AP equipment for obtaining the AC equipment managements are obtained, and obtains wireless client
By the corresponding route planning information in path；
Determining module determines AP of the wireless client by path for utilizing the route planning information and the AP information
Equipment adds the AP information of currently determining AP equipment in AP list of devices；
Sending module, for the AP list of devices to be sent to the wireless client, so that the wireless client utilizes
AP information in the location information of the wireless client current location and the AP list of devices selects AP equipment, and utilizes and work as
The AP equipment of preceding selection carries out radio roaming.
8. AC equipment as claimed in claim 7, which is characterized in that
The acquisition module is additionally operable to receive the location information for the current location that wireless client is sent；
The determining module is additionally operable to determine that the wireless client is current using the AP information of the location information and each AP equipment
The corresponding AP equipment in position；
The sending module, the AP information for being additionally operable to the corresponding AP equipment in the wireless client current location that will be determined are sent to
The wireless client carries out radio roaming by it using determining AP equipment.
9. AC equipment as claimed in claim 7 or 8, which is characterized in that
The AP information specifically includes one of following information or arbitrary combination：The corresponding AP name information of AP equipment, the whole world are fixed
Position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition
Information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is by path
Corresponding GPS information, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
10. a kind of wireless client, which is characterized in that the wireless client specifically includes：
Sending module, for the wireless client to be sent to access controller AC by the corresponding route planning information in path
Equipment, so that the AP information of each access point AP equipment of AC equipment managements described in the AC equipment utilizations and path planning letter
Breath determines AP equipment of the wireless client by path, and the AP of currently determining AP equipment is added in AP list of devices
Information；
Receiving module, for receiving the AP list of devices from the AC equipment；
Roam module, for selecting AP equipment using the AP information in the location information and the AP list of devices of current location,
And carry out radio roaming using the AP equipment currently selected.
11. wireless client as claimed in claim 10, which is characterized in that
The sending module is additionally operable to when carrying out radio roaming failure using the AP equipment currently selected, by current location
Location information is sent to the AC equipment；
The receiving module is additionally operable to receive true from the AP information of location information and each AP equipment described in the AC equipment utilizations
The AP information of the fixed corresponding AP equipment in the wireless client current location；
The roam module is additionally operable to carry out radio roaming using the AP equipment of the determination.
12. the wireless client as described in claim 10 or 11, which is characterized in that
The AP information specifically includes one of following information or arbitrary combination：The corresponding AP name information of AP equipment, the whole world are fixed
Position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition
Information；
The route planning information specifically includes one of following information or arbitrary combination：The wireless client is by path
Corresponding GPS information, wireless network card radio-frequency information, SSID information；
The location information specifically includes one of following information or arbitrary combination：The wireless client is in current location
GPS information, wireless network card radio-frequency information, SSID information.
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| CN201510152065.2A CN104811923B (en) | 2015-04-01 | 2015-04-01 | A kind of method and apparatus of radio roaming |
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