CN103096422A - Method and device of GAS inquiring - Google Patents
Method and device of GAS inquiring Download PDFInfo
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- CN103096422A CN103096422A CN2011103401109A CN201110340110A CN103096422A CN 103096422 A CN103096422 A CN 103096422A CN 2011103401109 A CN2011103401109 A CN 2011103401109A CN 201110340110 A CN201110340110 A CN 201110340110A CN 103096422 A CN103096422 A CN 103096422A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method and a device of a GAS inquiring, relates to the field of communication, and is used for solving the problems that time consumption is too long and electricity consumption is overmuch when the external network information supported by a plurality of access points (Aps) is inquired. The method of the GAS inquiring comprises the following steps: receiving GAS initial request information sent by a single threaded apartment (STA), wherein the GAS initial request information comprises an AP list, obtaining the external network information supported by each AP of the AP list, and sending the external network information supported by each AP of the AP list to the STA; sending the GAS initial request information to a first AP so as to enable the first AP to obtain the external network information, the GAS initial request information includes the AP list, receiving the GAS initial response message fed back by the first AP, and obtaining the external network information supported by each AP of the AP list according to the GAS initial response message. The method and the device of the GAS inquiring are applied to the field of communication, and are used for carrying out GAS inquiring in a wireless local area network (WLAN).
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of GAS (Generic Advertisement Services, generic advertisement service) querying method and device.
Background technology
WLAN (Wireless Local Area Network, WLAN (wireless local area network)) is a kind of wireless network access way.Owing to self possessing mobility and reliability preferably, the WLAN technology has obtained increasingly extensive application in recent years.The element of WLAN is BSS (Basic Service Set, Basic Service Set), and described BSS is comprised of a plurality of STA in a certain particular coverage (Station, website).The STA that possesses full-time administrative BSS in the BSS network is called as AP (Access Point, access point), and the STA in this BSS network is associated with AP.When STA need to be connected to external network, can arrive a plurality of AP by scanning probe, then according to scanning result, described a plurality of AP or some AP of therefrom selecting are initiated GAS (Generic Advertis ement Services successively, the generic advertisement service) inquire about the external network information of being supported to obtain each AP, thereby select available AP, and be associated with this AP to be connected to external network.
In realizing process of the present invention, the inventor finds that in prior art, there are the following problems at least:
Because STA can only carry out the GAS inquiry to an AP at every turn, when STA need to inquire about the external network information that a plurality of AP support, need repeatedly repeated priming GAS inquiry mechanism, not only expend power supply, and STA searches available network and need to expend the long period, and the user experiences relatively poor.
Summary of the invention
Embodiments of the invention provide a kind of GAS querying method and device, can obtain simultaneously the external network information that a plurality of AP support, make STA can more fast search available network, and can save the energy.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, the embodiment of the present invention provides a kind of GAS querying method, comprising:
Receive the GAS initial request message that STA sends, described GAS initial request message comprises the AP list;
Obtain the external network information that in described AP list, each AP supports;
The external network information that each AP in described AP list is supported is sent to described STA.
On the other hand, the embodiment of the present invention also provides a kind of GAS querying method, comprising:
Send the GAS initial request message to the first access point AP, so that a described AP obtains external network information, described GAS initial request message comprises the AP list;
Receive the GAS initial communication message that a described AP returns, obtain according to described GAS initial communication message the external network information that in described AP list, each AP supports.
On the one hand, the embodiment of the present invention also provides a kind of access point AP again, can carry out the GAS inquiry, and described AP comprises:
The first receiving element is used for receiving the GAS initial request message that STA sends, and described GAS initial request message comprises the AP list;
Acquiring unit is used for obtaining the external network information that described each AP of AP list supports;
The first transmitting element, the external network information that is used for described each AP of AP list is supported is sent to described STA.
Another aspect, the embodiment of the present invention also provide a kind of site STA, can carry out the GAS inquiry, and described STA comprises:
The second transmitting element is used for sending the GAS initial request message to the first access point AP, so that a described AP obtains external network information, described GAS initial request message comprises the AP list;
The second receiving element is used for receiving the GAS initial communication message that a described AP returns, and obtains according to described GAS initial communication message the external network information that in described AP list, each AP supports.
On the other hand, the embodiment of the present invention also provides a kind of generic advertisement service GAS inquiry system, comprises above-mentioned access point AP and site STA.
GAS querying method and device that the embodiment of the present invention provides, the external network information of being supported to obtain a plurality of AP by carry the AP list in the GAS initial request message.Compared with prior art, the method that the embodiment of the present invention provides can make STA obtain simultaneously the external network information that a plurality of AP support, determines comparatively efficiently accessible network, can also reduce power consumption simultaneously, saves power supply.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the method that Fig. 1 provides for one embodiment of the invention;
The schematic flow sheet of the method that Fig. 2 provides for another embodiment of the present invention;
The schematic flow sheet of the method that Fig. 3 provides for yet another embodiment of the invention;
The structural representation of the AP list that Fig. 4 provides in embodiment illustrated in fig. 3 for the present invention;
The schematic flow sheet of the method that Fig. 5 provides for yet another embodiment of the invention;
The structural representation of the access point AP that Fig. 6 to Fig. 9 provides for further embodiment of this invention;
The structural representation of the site STA that Figure 10 to Figure 14 provides for further embodiment of this invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
One embodiment of the invention provides a kind of GAS querying method, and as shown in Figure 1, described method comprises:
101, AP receives the GAS initial request message that STA sends, and described GAS initial request message comprises the AP list.
Concrete, described AP list comprises the sign of all AP that described STA detects, and perhaps the sign of the part AP in all AP of detecting of described STA, do not do restriction herein.
102, AP obtains the external network information that in described AP list, each AP supports.
Concrete, the external network information that described AP supports comprises service quality QOS mapping, the 3GPP cellular network information of roaming alliance's list, external network.
103, the external network information of each AP in described AP list being supported is sent to described STA.
The GAS querying method that the embodiment of the present invention provides, the external network information of being supported to obtain a plurality of AP by carry the AP list in the GAS initial request message.Compared with prior art, the method that the embodiment of the present invention provides can make STA obtain simultaneously the external network information that a plurality of AP support, determines comparatively efficiently accessible network, can also reduce power consumption simultaneously, saves power supply.
Another embodiment of the present invention provides a kind of GAS querying method, and as shown in Figure 2, described method comprises:
201, STA sends the GAS initial request message to an AP, so that a described AP obtains external network information, described GAS initial request message comprises the AP list.
Concrete, described AP list can comprise the sign of all AP that current site STA detects, the perhaps sign of part AP in all AP of detecting of described current STA, wherein, the sign of described part AP comprises that current STA indicates the sign of selected AP according to the user, satisfy the sign of the AP of STA self preset rules in all AP that perhaps current STA detects, but be not limited only to this.
What deserves to be explained is, a described AP is the AP of the GAS initial query request message of reception STA transmission, can be STA random selected AP from described AP list, also can indicate selected AP according to the user by STA, does not do restriction herein.
202, STA receives the GAS initial communication message that a described AP returns, and obtains according to described GAS initial communication message the external network information that in described AP list, each AP supports.
Concrete, the external network information that described AP supports comprises service quality QOS mapping, the 3GPP cellular network information of roaming alliance's list, external network.
The GAS querying method that the embodiment of the present invention provides is by carrying the external network information that the AP list is supported to obtain a plurality of AP in the GAS initial request message that sends to AP.Compared with prior art, the method that the embodiment of the present invention provides can make STA obtain simultaneously the external network information that a plurality of AP support, determines comparatively efficiently accessible network, can also reduce power consumption simultaneously, saves power supply.
Yet another embodiment of the invention provides a kind of GAS querying method, and as shown in Figure 3, described method comprises:
301, STA starts the GAS inquiry mechanism, determines the GAS query object, generates the AP list according to described GAS query object, and described AP list comprises the sign of each AP in described GAS query object.
Concrete, described GAS query object can be all AP that STA arrives by scanning probe, can be also that (for example STA indicates the sign of selected part AP according to the user for the sign of the part AP in all AP of detecting of STA, satisfy the sign of the part AP of STA self preset rules in all AP that perhaps current STA detects), do not do restriction herein.
For the ease of understanding, the embodiment of the present invention provides a kind of structural representation of AP list, and as shown in Figure 4, described AP list can comprise:
Concrete, in described AP list field 43, each AP identifier can be comprised of SSID (service set identifier) field 431 and/or BSSID (BSSID) field 432, wherein, ssid field is occupied 32 bit bytes, and the BSSID field is occupied 6 bit bytes.
Worth explanation, AP list structure schematic diagram shown in Figure 4 is only a kind of of embodiment of the present invention AP list structure, the AP list structure in the embodiment of the present invention is not limited to this.
302, STA determines an initial query object as an AP from described GAS query object, sends GAS inquiry initial request message to a described AP.
Concrete, STA can select an AP as an AP at random from described AP list, also can indicate selected AP as an AP according to the user, does not do restriction herein.
What deserves to be explained is, also comprise query requests in described GAS initial request message, described query requests is used to indicate the external network information that in a described AP list of AP inquiry that receives described GAS inquiry initial request message, each AP supports.
303, an AP receives the GAS initial request message that STA sends, and described GAS initial request message is resolved, and obtains the sign of each AP in described AP list.
304, an AP sends to AS (Advertisement Server with the sign of each AP in described query requests and described AP list, announcement server), to obtain the external network information that in described AP list, each AP supports, wherein, AS can provide the external network information that each AP supports.
305, AS receives the sign of each AP in described query requests and described AP list, inquires about the external network information that in described AP list, each AP supports.
306, an AP receives the query response message that AS returns, and described query response message comprises the external network information that in described AP list, each AP supports.
307, an AP sends GAS initial communication message to described STA, and described GAS initial communication message comprises the external network information that in described AP list, each AP supports.
What deserves to be explained is, if the query response message length that AS returns is long, when causing described GAS initial communication message can't disposablely carry the external network information that in described AP list, each AP supports, the external network information burst that an AP can support each AP in described AP list sends to STA.For example, the one AP can carry the delay query time in described GAS initial communication message, so that described STA through described carry postpone query time after, send successively at least one GAS recovery request message to a current AP and recover response message to receive corresponding GAS, and therefrom obtain the external network information that in remaining described AP list, each AP supports.
Optionally, the present embodiment can also comprise the steps 308-309:
308, STA obtains the delay query time, through after described delay query time, sends GAS recovery request message to an AP.
309, after an AP receives GAS recovery request message, return to GAS to STA and recover response message, described GAS recovers to carry the external network information that in remaining AP list, each AP supports in response message.
What deserves to be explained is, if the external network information that after step 309, in the AP list, each AP supports also is not sent, STA continues to recover response message to a current AP transmission GAS recovery request message to receive corresponding GAS, and therefrom obtains the external network information that in remaining described AP list, each AP supports.
310, STA according to the selected accessible external network of external network information that each AP in described AP list supports, determines the AP that this external network is corresponding, and is associated with this AP to access this networking, outside.
The GAS querying method that the embodiment of the present invention provides, the external network information of being supported to obtain a plurality of AP by carry the AP list in the GAS initial request message.Compared with prior art, the method that the embodiment of the present invention provides can make STA obtain simultaneously the external network information that a plurality of AP support, determines comparatively efficiently accessible network, can also reduce power consumption simultaneously, saves power supply.
Yet another embodiment of the invention provides a kind of GAS querying method, can inquire about the external network information that a plurality of AP support when AP adopts asynchronous response mechanism, and as shown in Figure 5, described method comprises:
501, STA starts the GAS inquiry mechanism, determines the GAS query object, generates the AP list according to described GAS query object, and described AP list comprises the sign of each AP in described GAS query object.
Concrete, described GAS query object can be all AP that STA arrives by scanning probe, can be also the sign of the part AP in all AP of detecting of STA, does not do restriction herein.
502, STA determines that from described GAS query object the first initial query object as an AP, sends the GAS initial request message to a described AP.
Concrete, STA can select an AP as an AP at random from described AP list, also can indicate selected AP as an AP according to the user, does not do restriction herein.
What deserves to be explained is, also comprise query requests in described GAS initial request message, described query requests is used to indicate the external network information that in the described AP list of AP inquiry that receives described GAS inquiry initial request message, each AP supports.
503, an AP receives the GAS initial request message that STA sends, and described GAS initial request message is resolved, and obtains the sign of each AP in described AP list.
504, an AP sends to AS with the sign of each AP in described query requests and described AP list, to obtain the external network information that in described AP list, each AP supports, wherein, the external network information that AS can provide each AP to support.
505, an AP sends GAS initial communication message to STA, carries the delay query time in described GAS initial communication message, so that described STA sends GAS recovery request message according to described delay query time to current AP.
506, an AP obtains the query response message that AS returns, and described query response message comprises the external network information that in described AP list, each AP supports.
507, when STA obtains the delay query time, send GAS recovery request message according to described delay query time to an AP.
508, after an AP receives GAS recovery request message, return to GAS to STA and recover response message, described GAS recovers to carry the external network information that in the AP list, each AP supports in response message.
What deserves to be explained is, if the query response message length that AS returns is long, cause described GAS to recover response message can't disposablely carry the external network information that in described AP list, each AP supports the time, an AP can send to STA with the external network information burst that each AP in described AP list supports by the GAS recovery request message of STA.For example, the one AP can recover in response message, the first sign to be set at described GAS, described the first sign is used to indicate STA to be continued to send successively at least one GAS recovery request message to a current AP and recovers response message to receive corresponding GAS, and therefrom obtains the external network information that in remaining described AP list, each AP supports.
509, STA according to the selected accessible external network of external network information that each AP in described AP list supports, determines the AP that this external network is corresponding, and is associated with this AP to access this networking, outside.
The GAS querying method that the embodiment of the present invention provides can be when AP adopts asynchronous response mechanism, the external network information of being supported to obtain a plurality of AP by carry the AP list in the GAS initial request message.Compared with prior art, the method that the embodiment of the present invention provides can make STA obtain simultaneously the external network information that a plurality of AP support, determines comparatively efficiently accessible network, can also reduce power consumption simultaneously, saves power supply.
Further embodiment of this invention provides a kind of access point AP, can realize the method for AP side in said method embodiment, and as shown in Figure 6, described AP comprises:
The first receiving element 61 is used for receiving the GAS initial request message that STA sends, and described GAS initial request message comprises the AP list;
Acquiring unit 62 is used for obtaining the external network information that described each AP of AP list supports;
The first transmitting element 63, the external network information that is used for described each AP of AP list is supported is sent to described STA.
Concrete, also comprise query requests in the GAS initial request message that described the first receiving element 61 receives, described query requests is used to indicate the external network information that in the described AP list of current AP inquiry, each AP supports, wherein, described AP list comprises the sign of all AP that described STA detects, the perhaps sign of the part AP in all AP of detecting of described STA, but be not limited only to this.
Further, as shown in Figure 7, described acquiring unit 62 comprises that first sends subelement 621 and the first reception subelement 622, wherein:
First sends subelement 621 is used for the sign of described query requests and described each AP of AP list is sent to announcement server, and described announcement server is for the external network information that provides each AP to support;
First receives subelement 622 is used for receiving the query response message that described announcement server returns, and described query response message comprises the external network information that in described AP list, each AP supports.
Further, as shown in Figure 8, described the first transmitting element 63 comprises that second sends subelement 631, be used for when current AP adopts sync response mechanism, send GAS initial communication message to described STA, described GAS initial communication message comprises the external network information that in described AP list, each AP supports.
concrete, it is long that described the second transmission subelement 631 also is used for working as described query response message length, when causing described GAS initial communication message can't disposablely carry the external network information that in described AP list, each AP supports, carry the delay query time in described GAS initial communication message, so that described STA through described carry postpone query time after, send successively at least one GAS recovery request message to current AP and recover response message to receive corresponding GAS, therefrom obtain the external network information that in remaining described AP list, each AP supports, wherein, the external network information that described AP supports comprises roams alliance's list, the service quality QOS mapping of external network, the 3GPP cellular network information.
Further, as shown in Figure 9, described the first transmitting element 63 comprises that also the 3rd sends subelement 632, the second reception subelement 633 and the 4th transmission subelement 634, wherein:
The 3rd sends subelement 632 is used for when current AP adopts asynchronous response mechanism, send GAS initial communication message to described STA, carry the delay query time in described GAS initial communication message, so that described STA through after described delay query time, sends GAS recovery request message to current AP;
Second receives subelement 633 is used for receiving the GAS recovery request message that described STA sends;
The 4th sends subelement 634 is used for sending GAS recovery response message to described STA, and described GAS recovers response message and comprises the external network information that in described AP list, each AP supports.
concrete, it is long that described the 4th transmission subelement 634 also is used for working as described query response message length, when causing described GAS recovery response message can't disposablely carry the external network information that in described AP list, each AP supports, recover in response message, the first sign to be set at described GAS, described the first sign is used to indicate STA to be continued to send successively at least one GAS recovery request message to receive corresponding GAS recovery response message to current AP, and therefrom obtain the external network information that in remaining described AP list, each AP supports, wherein, the external network information that described AP supports comprises roams alliance's list, the service quality QOS mapping of external network, the 3GPP cellular network information.
The AP that the embodiment of the present invention provides can carry out the GAS inquiry, obtain the AP list by the first receiving element 51, acquiring unit 52 obtains the external network information that in described AP list, each AP supports, by the first transmitting element 53, the external network information that each AP in described AP list supports is sent to described STA.Compared with prior art, the AP that the embodiment of the present invention provides can make STA obtain simultaneously the external network information that a plurality of AP support, determines comparatively efficiently accessible network, can also reduce power consumption simultaneously, saves power supply.
Another embodiment of the present invention also provides a kind of site STA, can realize the method for STA side in said method embodiment, and as shown in figure 10, described STA comprises:
The second transmitting element 101 is used for sending the GAS initial request message to the first access point AP, so that a described AP obtains external network information, described GAS initial request message comprises the AP list;
The second receiving element 102 is used for receiving the GAS initial communication message that a described AP returns, and obtains according to described GAS initial communication message the external network information that in described AP list, each AP supports.
Concrete, also comprising query requests in the GAS initial request message that described the second transmitting element 101 sends, described query requests is used to indicate the external network information that in a described described AP list of AP inquiry, each AP supports;
Further, as shown in figure 11, described STA also comprises:
Determining unit 103, be used for determining the AP list, described AP list comprises the sign of all AP that current site STA detects, the perhaps sign of part AP in all AP of detecting of described current STA, wherein, the sign of described part AP comprises that current STA indicates the sign of selected AP according to the user, satisfies the sign of the AP of STA self preset rules in all AP that perhaps current STA detects.
Further, as shown in figure 12, described the second receiving element 102 comprises that the 3rd reception subelement 1021 and first obtains subelement 1022, and described STA specifically also comprises the 3rd transmitting element 104 and the 3rd receiving element 105, wherein:
The 3rd receives subelement 1021 is used for receiving described GAS initial communication message when a described AP adopts sync response mechanism, and described GAS initial communication message comprises the external network information that in described AP list, each AP supports;
First obtains subelement 1022 is used for obtaining from described GAS initial communication message the external network information that described AP list, each AP supports.
Concrete, the 3rd transmitting element 104 is used for receiving described GAS initial communication message that subelement 1021 receives and carrying when postponing query time when the described the 3rd, is successively sending at least one GAS recovery request message to receive corresponding GAS recovery response message to a described AP through described carrying after postponing query time;
The 3rd receiving element 105 is used for receiving the GAS recovery response message that a described AP returns, therefrom obtain the external network information that in remaining described AP list, each AP supports, wherein, the external network information supported of described AP comprises the list of roaming alliance, the service quality QOS mapping of external network, 3GPP cellular network information.
According to AP shown in Figure 11, further, as shown in figure 13, described the second receiving element 102 comprises that the 4th receives subelement 1023, and described STA specifically also comprises the 4th transmitting element 106 and the 4th receiving element 107, wherein:
The 4th receives subelement 1023 is used for receiving the GAS initial communication message that a described AP returns when a described AP adopts asynchronous response mechanism, and described GAS initial communication message comprises the delay query time.
The 4th transmitting element 106 is used for sending GAS recovery request message through after described delay query time to a described AP, the GAS recovery response message that returns to obtain a described AP;
The 4th receiving element 107 is used for receiving the GAS recovery response message that a described AP returns, recover to obtain the external network information that in described AP list, each AP supports response message from described GAS, wherein, described GAS recovery response message comprises the external network information that in described AP list, each AP supports.
Further, as shown in figure 14, described STA also comprises the 5th transmitting element 108 and the 5th receiving element 109, wherein:
The 5th transmitting element 108 is used for when the GAS recovery response message of described the 4th receiving element 107 receptions carries the delay query time, through described carry postpone query time after, send successively at least one GAS recovery request message to a described AP and recover response message to receive corresponding GAS;
The 5th receiving element 109 is used for receiving the GAS recovery response message that described AP returns, and therefrom obtain the external network information that in remaining described AP list, each AP supports, wherein, the external network information supported of described AP comprises the list of roaming alliance, the service quality QOS mapping of external network, 3GPP cellular network information.
The STA that the embodiment of the present invention provides can carry out the GAS inquiry, to the first transmission GAS initial request message, carries AP list in described GAS initial request message by the second transmitting element 101; Receive by the second receiving element 102 the GAS initial communication message that an AP returns, and then obtain the external network information that in described AP list, each AP supports.Compared with prior art, the STA that the embodiment of the present invention provides can obtain the external network information that a plurality of AP support simultaneously, determines comparatively efficiently accessible network, can also reduce power consumption simultaneously, saves power supply.
The embodiment of the present invention also provides a kind of generic advertisement service GAS inquiry system, comprise Fig. 6-shown in Figure 9 access point AP and Figure 10-site STA shown in Figure 14
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk as computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (29)
1. a generic advertisement service GAS querying method, is characterized in that, comprising:
The GAS initial request message that receiving station STA sends, described GAS initial request message comprises access point AP list;
Obtain the external network information that in described AP list, each AP supports;
The external network information that each AP in described AP list is supported is sent to described STA.
2. method according to claim 1, it is characterized in that, also comprise query requests in described GAS initial request message, described query requests is used to indicate the external network information that in the described AP list of current AP inquiry, each AP supports, wherein, described AP list comprises the sign of all AP that described STA detects, perhaps the sign of part AP in all AP of detecting of described STA.
3. method according to claim 2, is characterized in that, describedly obtains the external network information that in described AP list, each AP supports and comprise:
The sign of each AP in described query requests and described AP list is sent to announcement server, and described announcement server is for the external network information that provides each AP to support;
Receive the query response message that described announcement server returns, described query response message comprises the external network information that in described AP list, each AP supports.
4. method according to claim 3, is characterized in that, when current AP adopted sync response mechanism, the described external network information that each AP in described AP list is supported was sent to described STA and comprises:
Send GAS initial communication message to described STA, described GAS initial communication message comprises the external network information that in described AP list, each AP supports.
5. method according to claim 4, it is characterized in that, long when described query response message length, when causing described GAS initial communication message can't disposablely carry the external network information that in described AP list, each AP supports, carry the delay query time in described GAS initial communication message, so that described STA through described carry postpone query time after, send successively at least one GAS recovery request message to current AP and recover response message to receive corresponding GAS, therefrom obtain the external network information that in remaining described AP list, each AP supports.
6. method according to claim 3, is characterized in that, when current AP adopted asynchronous response mechanism, the described external network information that each AP in described AP list is supported was sent to described STA and comprises:
After described sign with each AP in described query requests and described AP list sends to announcement server, send GAS initial communication message to described STA, carry the delay query time in described GAS initial communication message, so that described STA sends GAS recovery request message through after described delay query time to current AP;
After the query response message that the described announcement server of described reception returns, also comprise:
Receive the GAS recovery request message that described STA sends;
Send GAS to described STA and recover response message, described GAS recovers response message and comprises the external network information that in described AP list, each AP supports.
7. method according to claim 6, it is characterized in that, long when described query response message length, when causing described GAS to recover response message can't disposablely having carried the external network information that in described AP list, each AP supports, recover in response message, the first sign to be set at described GAS, described the first sign is used to indicate described STA to be continued to send successively at least one GAS recovery request message to current AP and recovers response message to receive corresponding GAS, and therefrom obtains the external network information that in remaining described AP list, each AP supports.
8. the described method of any one according to claim 1-7, is characterized in that, the external network information that described AP supports comprises the list of roaming alliance, the service quality QOS mapping of external network, 3GPP cellular network information.
9. a generic advertisement service GAS querying method, is characterized in that, comprising:
Send the GAS initial request message to the first access point AP, so that a described AP obtains external network information, described GAS initial request message comprises the AP list;
Receive the GAS initial communication message that a described AP returns, obtain according to described GAS initial communication message the external network information that in described AP list, each AP supports.
10. method according to claim 9, is characterized in that, also comprises query requests in described GAS initial request message, and described query requests is used to indicate the external network information that in a described described AP list of AP inquiry, each AP supports;
Described before the first access point AP transmission GAS initial request message, also comprise:
Determine the AP list, described AP list comprises the sign of all AP that current site STA detects, the perhaps sign of part AP in all AP of detecting of described current STA, wherein, the sign of described part AP comprises that current STA indicates the sign of selected AP according to the user, satisfies the sign of the AP of STA self preset rules in all AP that perhaps current STA detects.
11. method according to claim 10, it is characterized in that, when a described AP adopted sync response mechanism, the GAS initial communication message that the described AP of described reception returns obtained according to described GAS initial communication message the external network information that in described AP list, each AP supports and comprises:
Receive described GAS initial communication message, described GAS initial communication message comprises the external network information that in described AP list, each AP supports;
Obtain the external network information that in described AP list, each AP supports from described GAS initial communication message.
12. method according to claim 11, it is characterized in that, when described GAS initial communication message can't disposablely have been carried the external network information that in described AP list, each AP supports, a described AP carries the delay query time in described GAS initial communication message, so that current STA through described carry postpone query time after, send successively at least one GAS recovery request message to a described AP and recover response message to receive corresponding GAS, and therefrom obtain the external network information that in remaining described AP list, each AP supports.
13. method according to claim 10, it is characterized in that, when a described AP adopted asynchronous response mechanism, the GAS initial communication message that the described AP of described reception returns obtained according to described GAS initial communication message the external network information that in described AP list, each AP supports and comprises:
Receive the GAS initial communication message that a described AP returns, described GAS initial communication message comprises the delay query time;
Through after described delay query time, send GAS recovery request message to a described AP, the GAS recovery response message that returns to obtain a described AP;
Receive the GAS recovery response message that a described AP returns, described GAS recovers response message and comprises the external network information that in described AP list, each AP supports;
Recover to obtain the external network information that in described AP list, each AP supports response message from described GAS.
14. method according to claim 13, it is characterized in that, when described GAS recovery response message can't disposablely carry the external network information that in described AP list, each AP supports, a described AP recovers to carry the delay query time in response message at described GAS, so that current STA through described carry postpone query time after, send successively at least one GAS recovery request message to a described AP and recover response message to receive corresponding GAS, and therefrom obtain the external network information that in remaining described AP list, each AP supports.
15. according to claim 8-14, the described method of any one, is characterized in that, the external network information that described AP supports comprises service quality QOS mapping, the 3GPP cellular network information of roaming alliance's list, external network.
16. an access point AP is characterized in that, comprising:
The first receiving element is used for the GAS initial request message that receiving station STA sends, and described GAS initial request message comprises access point AP list;
Acquiring unit is used for obtaining the external network information that described each AP of AP list supports;
The first transmitting element, the external network information that is used for described each AP of AP list is supported is sent to described STA.
17. access point according to claim 16, it is characterized in that, also comprise query requests in the GAS initial request message that described the first receiving element receives, described query requests is used to indicate the external network information that in the described AP list of current AP inquiry, each AP supports, wherein, described AP list comprises the sign of all AP that described STA detects, perhaps the sign of the part AP in all AP of detecting of described STA.
18. access point according to claim 17 is characterized in that, described acquiring unit comprises:
First sends subelement, is used for the sign of described query requests and described each AP of AP list is sent to announcement server, and described announcement server is for the external network information that provides each AP to support;
First receives subelement, is used for receiving the query response message that described announcement server returns, and described query response message comprises the external network information that in described AP list, each AP supports.
19. access point according to claim 18 is characterized in that, described the first transmitting element comprises:
Second sends subelement, is used for sending GAS initial communication message to described STA when current AP adopts sync response mechanism, and described GAS initial communication message comprises the external network information that in described AP list, each AP supports.
20. access point according to claim 19, it is characterized in that, it is long that described the second transmission subelement also is used for working as described query response message length, when causing described GAS initial communication message can't disposablely carry the external network information that in described AP list, each AP supports, carry the delay query time in described GAS initial communication message, so that described STA through described carry postpone query time after, send successively at least one GAS recovery request message to current AP and recover response message to receive corresponding GAS, therefrom obtain the external network information that in remaining described AP list, each AP supports, wherein, the external network information that described AP supports comprises roams alliance's list, the service quality QOS mapping of external network, the 3GPP cellular network information.
21. access point according to claim 18 is characterized in that, described the first transmitting element also comprises:
The 3rd sends subelement, be used for when current AP adopts asynchronous response mechanism, send GAS initial communication message to described STA, carry the delay query time in described GAS initial communication message, so that described STA through after described delay query time, sends GAS recovery request message to current AP;
Second receives subelement, is used for receiving the GAS recovery request message that described STA sends;
The 4th sends subelement, is used for sending GAS to described STA and recovers response message, and described GAS recovers response message and comprises the external network information that in described AP list, each AP supports.
22. access point according to claim 21, it is characterized in that, it is long that described the 4th transmission subelement also is used for working as described query response message length, when causing described GAS recovery response message can't disposablely carry the external network information that in described AP list, each AP supports, recover in response message, the first sign to be set at described GAS, described the first sign is used to indicate described STA to be continued to send successively at least one GAS recovery request message to receive corresponding GAS recovery response message to current AP, and therefrom obtain the external network information that in remaining described AP list, each AP supports, wherein, the external network information that described AP supports comprises roams alliance's list, the service quality QOS mapping of external network, the 3GPP cellular network information.
23. a site STA is characterized in that, comprising:
The second transmitting element is used for sending the GAS initial request message to the first access point AP, so that a described AP obtains external network information, described GAS initial request message comprises the AP list;
The second receiving element is used for receiving the GAS initial communication message that a described AP returns, and obtains according to described GAS initial communication message the external network information that in described AP list, each AP supports.
24. website according to claim 23, it is characterized in that, also comprise query requests in the GAS initial request message that described the second transmitting element sends, described query requests is used to indicate the external network information that in a described described AP list of AP inquiry, each AP supports;
Described website also comprises:
Determining unit, be used for determining the AP list, described AP list comprises the sign of all AP that current site STA detects, the perhaps sign of part AP in all AP of detecting of described current STA, wherein, the sign of described part AP comprises that current STA indicates the sign of selected AP according to the user, satisfies the sign of the AP of STA self preset rules in all AP that perhaps current STA detects.
25. website according to claim 24 is characterized in that, described the second receiving element comprises:
The 3rd receives subelement, is used for receiving described GAS initial communication message when a described AP adopts sync response mechanism, and described GAS initial communication message comprises the external network information that in described AP list, each AP supports;
First obtains subelement, is used for obtaining from described GAS initial communication message the external network information that described AP list, each AP supports.
26. website according to claim 25 is characterized in that, described website also comprises:
The 3rd transmitting element, be used for receiving described GAS initial communication message that subelement receives and carrying when postponing query time when the described the 3rd, successively sending at least one GAS recovery request message to receive corresponding GAS recovery response message to a described AP through described carrying after postponing query time;
The 3rd receiving element, be used for receiving the GAS recovery response message that a described AP returns, therefrom obtain the external network information that in remaining described AP list, each AP supports, wherein, the external network information supported of described AP comprises the list of roaming alliance, the service quality QOS mapping of external network, 3GPP cellular network information.
27. website according to claim 24 is characterized in that, described the second receiving element comprises:
The 4th receives subelement, is used for receiving the GAS initial communication message that a described AP returns when a described AP adopts asynchronous response mechanism, and described GAS initial communication message comprises the delay query time;
Described website also comprises:
The 4th transmitting element is used for sending GAS recovery request message through after described delay query time to a described AP GAS recovery response message that returns to obtain a described AP;
The 4th receiving element, be used for receiving the GAS recovery response message that a described AP returns, recover to obtain the external network information that in described AP list, each AP supports response message from described GAS, wherein, described GAS recovery response message comprises the external network information that in described AP list, each AP supports.
28. website according to claim 27 is characterized in that, described website also comprises:
The 5th transmitting element, the GAS recovery response message that is used for receiving when described the 4th receiving element carries when postponing query time, through described carry postpone query time after, send successively at least one GAS recovery request message to a described AP and recover response message to receive corresponding GAS;
The 5th receiving element, be used for receiving the GAS recovery response message that described AP returns, and therefrom obtain the external network information that in remaining described AP list, each AP supports, wherein, the external network information supported of described AP comprises the list of roaming alliance, the service quality QOS mapping of external network, 3GPP cellular network information.
29. a generic advertisement service GAS inquiry system is characterized in that, comprises the described access point AP of claim 16-22 any one and the described site STA of claim 23-28 any one.
Priority Applications (3)
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| CN201110340110.9A CN103096422B (en) | 2011-11-01 | 2011-11-01 | GAS query method and device |
| CN201610459184.7A CN106131925B (en) | 2011-11-01 | 2011-11-01 | GAS (generic Access service) query method and device |
| PCT/CN2012/078906 WO2013063957A1 (en) | 2011-11-01 | 2012-07-20 | Gas query method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110340110.9A CN103096422B (en) | 2011-11-01 | 2011-11-01 | GAS query method and device |
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| CN103096422A true CN103096422A (en) | 2013-05-08 |
| CN103096422B CN103096422B (en) | 2016-07-27 |
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| CN201610459184.7A Active CN106131925B (en) | 2011-11-01 | 2011-11-01 | GAS (generic Access service) query method and device |
| CN201110340110.9A Active CN103096422B (en) | 2011-11-01 | 2011-11-01 | GAS query method and device |
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| CN201610459184.7A Active CN106131925B (en) | 2011-11-01 | 2011-11-01 | GAS (generic Access service) query method and device |
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| WO2013063957A1 (en) | 2013-05-10 |
| CN103096422B (en) | 2016-07-27 |
| CN106131925B (en) | 2020-01-03 |
| CN106131925A (en) | 2016-11-16 |
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