CN104811923A - Wireless roaming method and device - Google Patents
Wireless roaming method and device Download PDFInfo
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- CN104811923A CN104811923A CN201510152065.2A CN201510152065A CN104811923A CN 104811923 A CN104811923 A CN 104811923A CN 201510152065 A CN201510152065 A CN 201510152065A CN 104811923 A CN104811923 A CN 104811923A
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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 wireless roaming method and device. The method comprises the steps of acquiring AP information of each AP device through the AP device, and acquiring the path planning information corresponding to a wireless client; determining the AP device of the wireless client passing route through the AC device according to the route planning information and the AP information; adding the currently determined AP information of the AP device to an AP device list; sending the AP device list to the wireless client through the AC device; selecting the AP device by the wireless client according to the location information of the current location and the AP information in the AP device list; performing wireless roaming through the currently selected AP device. With the adoption of the method and the device, channel scanning for the wireless client is saved, so that the roaming scanning time can be saved, the roaming speed can be increased, the packet loss rate is small, the time delay is small.
Description
Technical field
The present invention relates to communication technical field, especially relate 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 as the AP used in a mobile internet environment (Access Point, access point) equipment, the wireless network of LTE system can be utilized to realize WLAN (Wireless Local Area Networks, WLAN (wireless local area network)) cover, and realize unified webmaster, support to carry out certification and charging to WiFi (Wireless Fidelity, Wireless Fidelity) user.At present, LTE Fi equipment can be deployed in any place having 3G/4G quorum sensing inhibitor flexibly, as mobile environment such as mobile public transport environment, public transport stop board, high ferro, outdoor advertising boards.
Radio roaming is a kind of wireless client behavior, and when detection reaches roaming threshold value, wireless client searches for more suitably AP equipment at each available channel, initiatively initiates association, to obtain better quality of wireless services.Concrete, wireless client at each available channel broadcast transmission probe requests thereby message, and receives the detection response message that each AP equipment returns.Wireless client collects the detection response message of each available channel, to select best AP equipment to carry out radio roaming, thus obtains better quality of wireless services.
Wireless client is searched in the process of more suitably AP equipment at each available channel, because now wireless client is operated in scanning and collection state, therefore, wireless client can not process the data message of current AP equipment, and can cause loss and the delay of data message.When the scanning behavior of wireless client spends a large amount of time, cannot process for the application such as voice, video, the experience effect of user can be worsened.
Summary of the invention
The embodiment of the present invention provides a kind of method of radio roaming, said method comprising the steps of:
Access controller AC equipment obtains the AP information of each access point AP equipment of described AC equipment control, and obtains the wireless client route planning information corresponding through path;
Route planning information described in described AC equipment utilization and described AP information, determine the AP equipment of wireless client through path, and in AP list of devices, add the AP information of the current AP equipment determined;
Described AP list of devices is sent to described wireless client by described AC equipment, to make described wireless client utilize AP Information Selection AP equipment in the positional information of this wireless client current location and described AP list of devices, and the AP equipment of current selection is utilized to carry out radio roaming.
Described method comprises further:
When described AC equipment receives the positional information of the current location that wireless client sends, the AP information of described positional information and each AP equipment is utilized to determine the AP equipment that this wireless client current location is corresponding;
The AP information of AP equipment corresponding for this wireless client current location determined is sent to this wireless client by described AC equipment, utilizes the AP equipment determined to carry out radio roaming by it.
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
The embodiment of the present invention provides a kind of method of radio roaming, said method comprising the steps of:
The route planning information that described wireless client is corresponding through path is sent to access controller AC equipment by wireless client, determine the AP equipment of described wireless client through path with the AP information and described route planning information that make each access point AP equipment of AC equipment control described in described AC equipment utilization, and in AP list of devices, add the AP information of the current AP equipment determined;
Described wireless client receives the described AP list of devices from described AC equipment;
Described wireless client utilizes the AP Information Selection AP equipment in the positional information of current location and described AP list of devices, and utilizes the AP equipment of current selection to carry out radio roaming.
Described method comprises further:
When utilizing the AP equipment of current selection to carry out radio roaming failure, the positional information of current location is sent to described AC equipment by described wireless client;
Described wireless client receives the AP information of AP equipment corresponding to described wireless client current location that the AP information from positional information described in described AC equipment utilization and each AP equipment determines;
Described wireless client utilizes the described AP equipment determined to carry out radio roaming.
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
The embodiment of the present invention provides a kind of access controller AC equipment, and described AC equipment specifically comprises:
Obtaining module, for obtaining the AP information of each access point AP equipment of described AC equipment control, and obtaining the wireless client route planning information corresponding through path;
Determination module, for utilizing described route planning information and described AP information, determining the AP equipment of wireless client through path, adding the AP information of the current AP equipment determined in AP list of devices;
Sending module, for described AP list of devices is sent to described wireless client, to make described wireless client utilize AP Information Selection AP equipment in the positional information of described wireless client current location and described AP list of devices, and the AP equipment of current selection is utilized to carry out radio roaming.
Described acquisition module, also for receiving the positional information of the current location that wireless client sends;
Described determination module, also for utilizing the AP information of described positional information and each AP equipment to determine the AP equipment that this wireless client current location is corresponding;
Described sending module, also for the AP information of AP equipment corresponding for this wireless client current location determined is sent to this wireless client, utilizes the AP equipment determined to carry out radio roaming by it.
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
The embodiment of the present invention provides a kind of wireless client, and described wireless client specifically comprises:
Sending module, access controller AC equipment is sent to for the route planning information that described wireless client is corresponding through path, determine the AP equipment of described wireless client through path with the AP information and described route planning information that make each access point AP equipment of AC equipment control described in described AC equipment utilization, and in AP list of devices, add the AP information of the current AP equipment determined;
Receiver module, for receiving the described AP list of devices from described AC equipment;
Roam module, for utilizing the AP Information Selection AP equipment in the positional information of current location and described AP list of devices, and utilizes the AP equipment of current selection to carry out radio roaming.
Described sending module, also for when utilizing the AP equipment of current selection to carry out radio roaming failure, sends to described AC equipment by the positional information of current location;
Described receiver module, the AP information of the AP equipment that the described wireless client current location also determined for the AP information received from positional information described in described AC equipment utilization and each AP equipment is corresponding;
Described roam module, also for utilizing the described AP equipment determined to carry out radio roaming.
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
Based on technique scheme, in the embodiment of the present invention, AC (Access Controller, access controller) the equipment route planning information that wireless client can be utilized to plan in advance, provide the AP list of devices of fixing action circuit to wireless client, wireless client is roamed according to this AP list of devices, without the need to carrying out scan channel, save the time of roaming scanning, save searching before wireless client terminal roam and net sweep time, accelerate roam speed.Owing to not having channel scan procedure, therefore packet loss probability is little, and time delay is little.Contribute to the load balancing between AP equipment, improve the success rate of wireless client terminal roam.Further, AC equipment can utilize the positional information of wireless client current location, AP equipment near propelling movement wireless client current location is to wireless client, wireless client is roamed according to this AP equipment, without the need to carrying out scan channel, save the time of roaming scanning, save searching before wireless client terminal roam and net sweep time, accelerate roam speed.Owing to not having channel scan procedure, therefore packet loss probability is little, and time delay is little.Contribute to the load balancing between AP equipment, improve the success rate of wireless client terminal roam.
Accompanying drawing explanation
Fig. 1 is the application scenarios schematic diagram of the embodiment of the present invention;
Fig. 2 is the method flow schematic diagram of a kind of radio roaming that the embodiment of the present invention provides;
Fig. 3 is the structural representation of a kind of AC equipment that the embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of wireless client that the embodiment of the present invention provides.
Embodiment
For problems of the prior art, embodiments provide a kind of method of radio roaming, the method is applied in the wlan network comprising wireless client, AC equipment and AP equipment.Take Fig. 1 as the application scenarios schematic diagram of the embodiment of the present invention, AP equipment can be LTE Fi equipment, the AP equipment that LTE Fi equipment uses in mobile internet environment as one, any place having 3G/4G quorum sensing inhibitor can be deployed in flexibly, as mobile environment such as mobile public transport environment, public transport stop board, high ferro, outdoor advertising boards.Wherein, AP equipment (as LTE Fi equipment) inside is provided with GPS (Global PositioningSystem, global positioning system) chip, the GPS information of this AP equipment can be navigated to, with the GPS information making AC equipment can learn current AP equipment, thus obtain the wireless service coverage condition of the AP equipment in certain GPS location.In addition, wireless client is the mobile device supporting GPS function.
Under above-mentioned application scenarios, as shown in Figure 2, the method for this radio roaming comprises the following steps:
Step 201, AC equipment obtains the AP information of each AP equipment of this AC equipment control, and obtains the wireless client route planning information corresponding through path.
Wherein, AP information specifically includes but not limited to one of following information or combination in any: the AP name information that AP equipment is corresponding, GPS information, radio-frequency information, working frequency range information, SSID (Service SetIdentifier, service set) information, work state information, loading condition information.
Route planning information specifically includes but not limited to one of following information or combination in any: wireless client in the GPS information corresponding through path (such as, wireless client fixing action circuit is through A, B, C, then wireless client comprises GPS information, the GPS information of place B, the GPS information of place C of place A in the GPS information corresponding through path), wireless network card radio-frequency information, SSID information.
For each AP equipment of AC equipment control, the AP information of this AP equipment can directly be reported AC equipment by each AP equipment, by the AP information of each AP equipment of AC device storage, record and renewal.As shown in table 1, be a kind of sample situation of the AP information of each AP equipment of AC plant maintenance.
Table 1
| AP name | GPS | Radio frequency | Working frequency range | SSID | Operating state | Loading condition |
| AP1 | GPS1 | 2.4G | channel 6 | CMCC | Normally | Idle |
| AP2 | GPS2 | 2.4G | channel 6 | CMCC | Normally | Idle |
| AP3 | GPS3 | 5G | channel 140 | CMCC | Normally | Busy |
| AP4 | GPS4 | 5G | channel 140 | CMCC | Abnormal | Idle |
For wireless client, the route planning information that this wireless client is corresponding through path can be sent to AC equipment by wireless client, and all route planning information between the A place of this wireless client process to B place are sent to AC equipment by the road figure that navigation software can be utilized to provide as wireless client.Wherein, the GPS information in different route planning information is different, and the wireless network card radio-frequency information in different route planning information is identical, and the SSID information in different route planning information is identical.Further, the route planning information that AC plant maintenance wireless client is corresponding through path.As shown in table 2, be a kind of sample situation of the wireless client 1 of the AC plant maintenance route planning information corresponding through path.
Table 2
Step 202, AC equipment utilization route planning information and AP information, determine the AP equipment of wireless client through path, and in AP list of devices, add the AP information of the current AP equipment determined.
Such as, based on the route planning information shown in the AP information shown in table 1 and table 2, the route planning information of wireless client process comprises GPS1, GPS2, GPS3 and GPS4, the wireless service that AP1 provides covers GPS1, the wireless service that AP2 provides covers GPS2, the wireless service that the wireless service that AP3 provides covers GPS3, AP4 to be provided covers GPS4.Therefore, the AP equipment of AC equipment determination wireless client through path is respectively AP1, AP2, AP3 and AP4, and can add AP information, the AP information of AP2, the AP information of AP3, the AP information of AP4 of AP1 in AP list of devices.
Step 203, AP list of devices is sent to wireless client by AC equipment, to make wireless client reception from the AP list of devices of AC equipment, and on this wireless client, preserves this AP list of devices.
Step 204, wireless client utilizes the AP Information Selection AP equipment in the positional information of this wireless client current location and AP list of devices, and utilizes the AP equipment of current selection to carry out radio roaming.
Wherein, positional information specifically includes but not limited to one of following information or combination in any: wireless client current location GPS information (such as, when the current location of wireless client is place A, then the GPS information of current location is the GPS information of place A), wireless network card radio-frequency information, SSID information.
During the AP Information Selection AP equipment of wireless client in the positional information utilizing this wireless client current location and AP list of devices, wireless client selects the AP equipment corresponding with the GPS information (one of positional information) of current location in AP list of devices.Such as, when the GPS information of this wireless client current location is GPS1, then in AP list of devices, select the AP1 corresponding with GPS1.
In the embodiment of the present invention, when the AP equipment corresponding with the GPS information of current location is multiple, then based on the AP information of this multiple AP equipment recorded in AP list of devices: (1) is if there is the radio-frequency information of AP equipment identical with the wireless network card radio-frequency information of wireless client, have the radio-frequency information of AP equipment different from the wireless network card radio-frequency information of wireless client, then wireless client is by AP equipment identical with the wireless network card radio-frequency information of wireless client for prioritizing selection radio-frequency information.(2) if there is the SSID information of AP equipment identical with the SSID information of wireless client, have the SSID information of AP equipment different from the SSID information of wireless client, then wireless client is by AP equipment identical with the SSID information of wireless client for prioritizing selection SSID information.(3) if there is the work state information of AP equipment to be normal, have the work state information of AP equipment for abnormal, then prioritizing selection work state information is normal AP equipment by wireless client.(4) if having the loading condition information of AP equipment for idle, have the loading condition information of AP equipment to be busy, then prioritizing selection loading condition information is idle AP equipment by wireless client.
In the embodiment of the present invention, wireless client utilizes the AP equipment of current selection to carry out in the process of radio roaming, when triggering roaming threshold value, wireless client is scanning channel no longer, but select a nearest AP equipment according to the GPS information of wireless client current location, and send uni-cast probe request message to this AP equipment on working channel.If receive the detection response message that this AP equipment returns in Preset Time, then wireless client AP equipment initiation association request therewith, radio roaming success.If do not receive the detection response message that this AP equipment returns in Preset Time, then wireless client sends uni-cast probe request message to this AP equipment again.By that analogy, if after sending the uni-cast probe request message of preset times, wireless client does not all receive the detection response message that this AP equipment returns, then radio roaming failure.
In the embodiment of the present invention, when utilizing the AP equipment of current selection to carry out radio roaming failure, the positional information of this wireless client current location is sent to AC equipment by wireless client.When AC equipment receives the positional information of the current location that wireless client sends, utilize the AP information of this positional information and each AP equipment, determine the AP equipment that this wireless client current location is corresponding.The AP information of AP equipment corresponding for this wireless client current location determined is sent to this wireless client by AC equipment.Afterwards, wireless client utilizes the AP equipment determined to carry out radio roaming.
AC equipment is utilizing the AP information (as shown in table 1) of the positional information of wireless client current location (as GPS information) and each AP equipment, when determining AP equipment corresponding to wireless client current location, AC equipment selects the AP equipment corresponding with the GPS information of wireless client current location from each AP equipment shown in table 1.Such as, as the GPS information GPS1 of wireless client current location, then wireless client selects the AP1 corresponding with GPS1 from each AP equipment.
In the embodiment of the present invention, when the AP equipment corresponding with the GPS information of wireless client current location is multiple, then based on the AP information of this multiple AP equipment in each AP equipment shown in table 1: (1) is if there is the radio-frequency information of AP equipment identical with the wireless network card radio-frequency information of wireless client, have the radio-frequency information of AP equipment different from the wireless network card radio-frequency information of wireless client, then AC equipment is by AP equipment identical with the wireless network card radio-frequency information of wireless client for prioritizing selection radio-frequency information.(2) if there is the SSID information of AP equipment identical with the SSID information of wireless client, have the SSID information of AP equipment different from the SSID information of wireless client, then AC equipment is by AP equipment identical with the SSID information of wireless client for prioritizing selection SSID information.(3) if there is the work state information of AP equipment to be normal, have the work state information of AP equipment for abnormal, then prioritizing selection work state information is normal AP equipment by AC equipment.(4) if having the loading condition information of AP equipment for idle, have the loading condition information of AP equipment to be busy, then prioritizing selection loading condition information is idle AP equipment by AC equipment.
In the embodiment of the present invention, wireless client utilizes the current AP equipment determined to carry out in the process of radio roaming, and when triggering roaming threshold value, wireless client is scanning channel no longer, but based on the current AP equipment determined, working channel sends uni-cast probe request message to this AP equipment.If receive the detection response message that this AP equipment returns in Preset Time, then wireless client AP equipment initiation association request therewith, radio roaming success.If do not receive the detection response message that this AP equipment returns in Preset Time, then wireless client sends uni-cast probe request message to this AP equipment again.By that analogy, if after sending the uni-cast probe request message of preset times, wireless client does not all receive the detection response message that this AP equipment returns, then radio roaming failure.When radio roaming failure, then wireless client can utilize existing scan channel mode to search for AP equipment, and this process repeats no longer in detail at this.
Based on such scheme, the route planning information that AC equipment can utilize wireless client to plan in advance, there is provided the AP list of devices of fixing action circuit to wireless client, wireless client is roamed according to this AP list of devices, without the need to carrying out scan channel, save the time of roaming scanning, save searching before wireless client terminal roam and net sweep time, accelerate roam speed.Owing to not having channel scan procedure, therefore packet loss probability is little, and time delay is little.Contribute to the load balancing between AP equipment, improve the success rate of wireless client terminal roam.AC equipment can utilize the positional information of wireless client current location, AP equipment near propelling movement wireless client current location is to wireless client, wireless client is roamed according to this AP equipment, without the need to carrying out scan channel, save the time of roaming scanning, save searching before wireless client terminal roam and net sweep time, accelerate roam speed.Owing to not having channel scan procedure, therefore packet loss probability is little, and time delay is little.Contribute to the load balancing between AP equipment, improve the success rate of wireless client terminal roam.
Based on the inventive concept same with said method, additionally provide a kind of access controller AC equipment in the embodiment of the present invention, as shown in Figure 3, described AC equipment specifically comprises:
Obtaining module 11, for obtaining the AP information of each access point AP equipment of described AC equipment control, and obtaining the wireless client route planning information corresponding through path; Determination module 12, for utilizing described route planning information and described AP information, determining the AP equipment of wireless client through path, adding the AP information of the current AP equipment determined in AP list of devices; Sending module 13, for described AP list of devices is sent to described wireless client, to make described wireless client utilize AP Information Selection AP equipment in the positional information of described wireless client current location and described AP list of devices, and the AP equipment of current selection is utilized to carry out radio roaming.
Described acquisition module 11, also for receiving the positional information of the current location that wireless client sends;
Described determination module 12, also for utilizing the AP information of described positional information and each AP equipment to determine the AP equipment that this wireless client current location is corresponding;
Described sending module 13, also for the AP information of AP equipment corresponding for this wireless client current location determined is sent to this wireless client, utilizes the AP equipment determined to carry out radio roaming by it.
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.
Based on the inventive concept same with said method, additionally provide a kind of wireless client in the embodiment of the present invention, as shown in Figure 4, described wireless client specifically comprises:
Sending module 21, access controller AC equipment is sent to for the route planning information that described wireless client is corresponding through path, determine the AP equipment of described wireless client through path with the AP information and described route planning information that make each access point AP equipment of AC equipment control described in described AC equipment utilization, and in AP list of devices, add the AP information of the current AP equipment determined;
Receiver module 22, for receiving the described AP list of devices from described AC equipment;
Roam module 23, for utilizing the AP Information Selection AP equipment in the positional information of current location and described AP list of devices, and utilizes the AP equipment of current selection to carry out radio roaming.
Described sending module 21, also for when utilizing the AP equipment of current selection to carry out radio roaming failure, sends to described AC equipment by the positional information of current location; Described receiver module 22, the AP information of the AP equipment that the described wireless client current location also determined for the AP information received from positional information described in described AC equipment utilization and each AP equipment is corresponding; Described roam module 23, also for utilizing the described AP equipment determined to carry out radio roaming.
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (12)
1. a method for radio roaming, is characterized in that, said method comprising the steps of:
Access controller AC equipment obtains the AP information of each access point AP equipment of described AC equipment control, and obtains the wireless client route planning information corresponding through path;
Route planning information described in described AC equipment utilization and described AP information, determine the AP equipment of wireless client through path, and in AP list of devices, add the AP information of the current AP equipment determined;
Described AP list of devices is sent to described wireless client by described AC equipment, to make described wireless client utilize AP Information Selection AP equipment in the positional information of this wireless client current location and described AP list of devices, and the AP equipment of current selection is utilized to carry out radio roaming.
2. the method for claim 1, is characterized in that, described method comprises further:
When described AC equipment receives the positional information of the current location that wireless client sends, the AP information of described positional information and each AP equipment is utilized to determine the AP equipment that this wireless client current location is corresponding;
The AP information of AP equipment corresponding for this wireless client current location determined is sent to this wireless client by described AC equipment, utilizes the AP equipment determined to carry out radio roaming by it.
3. method as claimed in claim 1 or 2, is characterized in that,
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
4. a method for radio roaming, is characterized in that, said method comprising the steps of:
The route planning information that described wireless client is corresponding through path is sent to access controller AC equipment by wireless client, determine the AP equipment of described wireless client through path with the AP information and described route planning information that make each access point AP equipment of AC equipment control described in described AC equipment utilization, and in AP list of devices, add the AP information of the current AP equipment determined;
Described wireless client receives the described AP list of devices from described AC equipment;
Described wireless client utilizes the AP Information Selection AP equipment in the positional information of current location and described AP list of devices, and utilizes the AP equipment of current selection to carry out radio roaming.
5. method as claimed in claim 4, it is characterized in that, described method comprises further:
When utilizing the AP equipment of current selection to carry out radio roaming failure, the positional information of current location is sent to described AC equipment by described wireless client;
Described wireless client receives the AP information of AP equipment corresponding to described wireless client current location that the AP information from positional information described in described AC equipment utilization and each AP equipment determines;
Described wireless client utilizes the described AP equipment determined to carry out radio roaming.
6. the method as described in claim 4 or 5, is characterized in that,
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
7. an access controller AC equipment, is characterized in that, described AC equipment specifically comprises:
Obtaining module, for obtaining the AP information of each access point AP equipment of described AC equipment control, and obtaining the wireless client route planning information corresponding through path;
Determination module, for utilizing described route planning information and described AP information, determining the AP equipment of wireless client through path, adding the AP information of the current AP equipment determined in AP list of devices;
Sending module, for described AP list of devices is sent to described wireless client, to make described wireless client utilize AP Information Selection AP equipment in the positional information of described wireless client current location and described AP list of devices, and the AP equipment of current selection is utilized to carry out radio roaming.
8. AC equipment as claimed in claim 7, is characterized in that,
Described acquisition module, also for receiving the positional information of the current location that wireless client sends;
Described determination module, also for utilizing the AP information of described positional information and each AP equipment to determine the AP equipment that this wireless client current location is corresponding;
Described sending module, also for the AP information of AP equipment corresponding for this wireless client current location determined is sent to this wireless client, utilizes the AP equipment determined to carry out radio roaming by it.
9. AC equipment as claimed in claim 7 or 8, is characterized in that,
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
10. a wireless client, is characterized in that, described wireless client specifically comprises:
Sending module, access controller AC equipment is sent to for the route planning information that described wireless client is corresponding through path, determine the AP equipment of described wireless client through path with the AP information and described route planning information that make each access point AP equipment of AC equipment control described in described AC equipment utilization, and in AP list of devices, add the AP information of the current AP equipment determined;
Receiver module, for receiving the described AP list of devices from described AC equipment;
Roam module, for utilizing the AP Information Selection AP equipment in the positional information of current location and described AP list of devices, and utilizes the AP equipment of current selection to carry out radio roaming.
11. wireless clients as claimed in claim 10, is characterized in that,
Described sending module, also for when utilizing the AP equipment of current selection to carry out radio roaming failure, sends to described AC equipment by the positional information of current location;
Described receiver module, the AP information of the AP equipment that the described wireless client current location also determined for the AP information received from positional information described in described AC equipment utilization and each AP equipment is corresponding;
Described roam module, also for utilizing the described AP equipment determined to carry out radio roaming.
12. wireless clients as described in claim 10 or 11, is characterized in that,
Described AP information specifically comprises one of following information or combination in any: the AP name information that AP equipment is corresponding, global position system GPS information, radio-frequency information, working frequency range information, service set SSID information, work state information, loading condition information;
Described route planning information specifically comprises one of following information or combination in any: described wireless client is in the GPS information corresponding through path, wireless network card radio-frequency information, SSID information;
Described positional information specifically comprises one of following information or combination in any: described wireless client is in GPS information, wireless network card radio-frequency information, the SSID information of current location.
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