CN101146338A - Method and radio terminal for preventing from multicast lock and radio access point and communication system - Google Patents
Method and radio terminal for preventing from multicast lock and radio access point and communication system Download PDFInfo
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Abstract
The invention discloses a preventative method for terminal multicast deadlock that is used in wireless LAN, including: the terminal sets multicast overtime before getting into the multicast response information interception mode; when in multicast response information interception mode, the terminal intercepts the multicast response information. If no multicast response information is intercepted in the multicast overtime, the terminal will withdraw from the multicast response information interception mode. In response, the invention discloses a wireless terminal and wireless access point and communication system. The invention can prevent multicast deadlock of the terminal and enhance the network operation quality.
Description
Technical field
The present invention relates to multicasting technology, relate in particular to the method and wireless terminal and WAP (wireless access point) and the wireless lan communication system that in WLAN (wireless local area network), prevent the terminal multicast lock.
Background technology
Please refer to Fig. 1, for using the WLAN (wireless local area network) schematic diagram of multicasting technology.The multicast response message is the response message that comprises a multicast address, and multicast address is used to identify a transmission session, and corresponding is one group of receiving terminal with common trait, rather than is used to identify a specific physical address or main frame.WLAN (wireless local area network) as shown in Figure 1 (Wireless Local Area Network, WLAN) in, after wireless terminal and WAP (wireless access point) were finished information interaction, WAP (wireless access point) sent the multicast response message to one group of wireless terminal of special domain.But when wireless terminal entered multicast response information interception state, if do not receive the multicast response message that WAP (wireless access point) sends, wireless terminal can be always for wait state.
Below by concrete example above-mentioned situation is described.Terminal will obtain the information of external network before association, so just require terminal before association, just to finish the information interaction that obtains external network information, comprise: terminal (Station, STA) send probe requests thereby (Probe Request) frame to access point (Access Point, AP) available Basic Service Set (Basic Service Set, the BSS) information of request; AP responds the Probe Request of STA with probe response (Probe Response) frame; STA sends to AP with generic broadcasted service initial request (GAS Initial Request) frame; AP produces generic broadcasted service initial communication (GAS Initial Response) frame according to the GAS Initial Request frame that receives, and the GAS InitialResponse frame that produces is sent to STA; This GASInitial Response frame has comprised GAS Query ID and a multicast address and an optional Query Result that is used for back response; After AP obtains Query Result, wait until that again the GASTIM Count value that sends the GASTIM field is to reply response (GAS Comeback Response) frame with regard to the generic broadcasted service of multicast after 0 the Beacon frame to give STA, has concrete Query Result in the GAS ComebackResponse frame.
The process that receives the multicast response message from above prior art terminal as can be seen, STA is after receiving generic broadcasted service original request message, if generation STA does not receive the situation from the multicast response message of AP, action when not receiving the multicast response message because of not providing STA in the prior art, STA will be in the state that continues to wait for how generic broadcasted service answer response message, and can not carry out the conversion of any state, this will cause STA to produce multicast lock.Occur STA can't receive from the reason of the multicast response message of AP a lot, such as reasons such as air traffic channel are of poor quality.Multicast lock will make the STA paralysis, has a strong impact on network running quality.
Summary of the invention
The technical problem to be solved in the present invention provides method and wireless terminal and WAP (wireless access point) and the communication system that prevents multicast lock, produces multicast lock to prevent terminal, improves network running quality.
For solving the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of method that prevents the terminal multicast lock is used for WLAN (wireless local area network), comprising: before entering multicast response information interception state, terminal is provided with the multicast time-out time; After entering multicast response information interception state, terminal is intercepted the multicast response message, if in described multicast time-out time, do not listen to the multicast response message, withdraws from multicast response information interception state.
Preferably, before the multicast time-out time was set, terminal received the information of carrying the multicast time-out time that WAP (wireless access point) sends; Described setting up procedure is that the multicast time-out time that terminal is carried according to described information is provided with the multicast time-out time.
Preferably, in the described process of intercepting, described terminal receives the information of carrying the multicast time-out time that described WAP (wireless access point) sends, and according to the multicast time-out time replacement multicast time-out time that described information is carried, proceeds to intercept.
Preferably, before the multicast time-out time was set, terminal and WAP (wireless access point) were consulted the multicast time-out time; Described setting up procedure is that terminal is provided with the multicast time-out time according to the multicast time-out time of described negotiation.
Preferably, described multicast response message is that response message is replied in generic broadcasted service; Described negotiations process is, terminal sends the generic broadcasted service original request message that carries the multicast time-out time to WAP (wireless access point), the multicast time-out time that described WAP (wireless access point) is carried according to described information is consulted the multicast time-out time, sends the generic broadcasted service initial communication information of the multicast time-out time that carries described negotiation to described terminal.
Preferably, described multicast response message is that response message is replied in generic broadcasted service.
Preferably, before entering generic broadcasted service answer response information interception state, terminal enters generic broadcasted service initial communication information and intercepts state; Enter before generic broadcasted service initial communication information intercepts state, terminal is provided with the response timeout time; Enter after generic broadcasted service initial communication information intercepts state, terminal is intercepted generic broadcasted service initial communication information, if in the time, do not listen to generic broadcasted service initial communication information, withdraw from generic broadcasted service initial communication information and intercept state at described response timeout.
Preferably, described the multicast time-out time is set before, station management entity sends the information carry the multicast time-out time to the media access control layer management entity; Described setting up procedure is that the multicast time-out time that the described information that terminal receives according to described media access control layer management entity is carried is provided with the multicast time-out time; Described withdraw from generic broadcasted service and reply the response information interception state after, described media access control layer management entity sends generic broadcasted service to described station management entity and replys response information interception state exit confirmation information.
Preferably, described withdraw from generic broadcasted service and reply the response information interception state before, station management entity sends generic broadcasted service to the media access control layer management entity and replys the response information interception state and withdraw from information.
A kind of wireless terminal is used for WLAN (wireless local area network), comprises that multicast overtime timer, multicast response information interception unit, state withdraw from judging unit and state conversion unit; The multicast overtime timer is used for before entering multicast response information interception state the multicast time-out time being set; When described multicast time-out time arrives, send the multicast time-out time and arrive information; Multicast response information interception unit is used for after entering multicast response information interception state the multicast response message being intercepted; State withdraws from judging unit, is used for judging whether to listen to the multicast response message receiving described multicast time-out time when arriving information, if not, sends multicast response information interception state and withdraws from information; State conversion unit is used for withdrawing from multicast response information interception state receiving described intercepting after multicast response message state withdraws from information.
Preferably, also comprise multicast time-out time acquiring unit: multicast time-out time acquiring unit, be used to obtain the multicast time-out time, send the information of carrying the described multicast time-out time that obtains to described multicast overtime timer.
Preferably, also comprise terminal multicast time-out time negotiation element: terminal multicast time-out time negotiation element is used for consulting the multicast time-out time with WAP (wireless access point).
A kind of WAP (wireless access point) comprises multicast time-out time transmitting element: multicast time-out time transmitting element is used for sending the information of carrying the multicast time-out time to wireless terminal.
Preferably, also comprise access point multicast time-out time negotiation element: access point multicast time-out time negotiation element, be used for consulting the multicast time-out time, send described information of carrying the multicast time-out time of described negotiation to described multicast time-out time transmitting element with described wireless terminal.
A kind of wireless lan communication system comprises wireless terminal and WAP (wireless access point); Wireless terminal comprises that multicast overtime timer, multicast response information interception unit, state withdraw from judging unit, state conversion unit and multicast time-out time acquiring unit; WAP (wireless access point) comprises multicast time-out time transmitting element; Multicast time-out time transmitting element is used for sending the information of carrying the multicast time-out time to described wireless terminal; Multicast time-out time acquiring unit is used to obtain the multicast time-out time, sends the information of carrying the described multicast time-out time that obtains to described multicast overtime timer; The multicast overtime timer is used for before entering multicast response information interception state the multicast time-out time being set; When described multicast time-out time arrives, send the multicast time-out time and arrive information; Multicast response information interception unit is used for after entering multicast response information interception state the multicast response message being intercepted; State withdraws from judging unit, is used for judging whether to listen to the multicast response message receiving described multicast time-out time when arriving information, if not, sends multicast response information interception state and withdraws from information; State conversion unit is used for withdrawing from multicast response information interception state receiving described intercepting after multicast response message state withdraws from information.
Preferably, described wireless terminal also comprises terminal multicast time-out time negotiation element; Described WAP (wireless access point) also comprises access point multicast time-out time negotiation element; Terminal multicast time-out time negotiation element is used for consulting the multicast time-out time with described WAP (wireless access point); Access point multicast time-out time negotiation element is used for consulting the multicast time-out time with described wireless terminal, sends described information of carrying the multicast time-out time of described negotiation to described multicast time-out time transmitting element.
Above technical scheme as can be seen, among the present invention, before entering multicast response information interception state, terminal is provided with the multicast time-out time; After entering multicast response information interception state, terminal is intercepted the multicast response message, if in described multicast time-out time, do not listen to the multicast response message, withdraws from multicast response information interception state; The present invention does not receive the multicast response message yet by presetting time-out time when time-out time arrives, then terminal withdraws from wait state, thereby prevents that effectively terminal from producing multicast lock, improves network running quality.
Description of drawings
Fig. 1 is for using the WLAN (wireless local area network) schematic diagram of multicasting technology;
Fig. 2 prevents the method flow diagram of multicast lock for the present invention;
Fig. 3 is the signaling diagram of the embodiment of the invention one multicast inquiry mechanism;
Fig. 4 is the signaling diagram of the embodiment of the invention two multicast inquiry mechanisms;
Fig. 5 is the Action field format schematic diagram of GAS Initial Response frame of the present invention;
Fig. 6 is the form schematic diagram of multicast time-out time cell of the present invention;
Fig. 7 is the signaling diagram of the embodiment of the invention three multicast inquiry mechanisms;
Fig. 8 is the Action field format schematic diagram of GAS Initial Request frame of the present invention;
Fig. 9 is the present invention's first communication system schematic diagram;
Figure 10 is a second communication system schematic of the present invention.
Embodiment
The invention provides the method and wireless terminal device and WAP (wireless access point) and the communication system that prevent multicast lock, its core concept is that terminal sets in advance the multicast time-out time, after entering multicast response information interception state, if in described multicast time-out time, do not listen to the multicast response message, then withdraw from multicast response information interception state; Thereby solved well that terminal continues to wait for the multicast response message and the problem that can't change state.
Please refer to Fig. 2, the method flow diagram for the present invention prevents multicast lock comprises:
201. before entering multicast response information interception state, terminal is provided with the multicast time-out time;
202. after entering multicast response information interception state, terminal is intercepted the multicast response message, if in described multicast time-out time, do not listen to the multicast response message, withdraws from multicast response information interception state.
For further understanding the present invention, below the technical program is described in detail by embodiment.
Embodiment one:
Please refer to Fig. 3, be the signaling diagram of the embodiment of the invention one multicast inquiry mechanism.
The step 2. access point Probe Request frame of Probe Response frame response terminal.The ProbeResponse frame has BSS information and the broadcast message ability (GAS Capability) that detects.Terminal is therefrom obtained Basic Service Set information and GAS Capability information after receiving Probe Response frame.GASCapability has mainly identified terminal and has generated the ways of distribution that the used agreement of GAS Request IE and terminal are supported, and described ways of distribution is mode of unicast or multicast mode, and what this flow process adopted is exactly the ways of distribution of multicast.
Described Probe Response frame the inside comprises Interworking Capability, GAS Capability, three cells of ESSID.Probe Response frame has BSS information and the generic broadcasted information capability (GAS Capability) that detects.Described GAS Capability has mainly comprised STA and has generated the ways of distribution that the used agreement of GAS Request IE and STA are supported.Described Interworking Capability mainly identifies the ability of STA network interoperability, GAS Capability mainly identifies the information of the generic broadcasted service ability of STA, ESSID be used to identify an extended service set (Extension Service Set, ESS).
The GAS Capability information that step 3. terminal obtains according to step 2 is added query statement and is generated GAS Request IE, then terminal generates GAS Initial Request frame according to GAS Request IE, and the GAS Initial Request frame that generates is sent to access point initiates query requests.
In the Category field of the Action of Action frame field, add the Interworking type, the Action value that comprises among the Action Details of Interworking Action frame has 0,1,2,3, and these four are worth corresponding GAS Initial Request, GAS Initial Response, GAS ComebackRequest, GAS Comeback Response respectively.
Send in step 3 in the GAS Initial Request frame, terminal receives the time of GAS Initial Response frame timeout according to the response timeout time set of configuration.If do not receive GAS Initial Response frame in the time, then withdraw from GAS Initial Response frame and intercept state at response timeout.The processing method that terminal receives GAS Initial Response frame timeout has a lot, for example retransmits GAS Initial Request frame.
When terminal receives GAS Initial Response frame, set the time-out time that receives GAS Comeback Response frame according to the multicast time-out time that oneself disposes.If in the multicast time-out time, do not receive GAS Comeback Response frame, then withdraw from GAS Comeback Response frame and intercept state.The processing method that terminal receives GAS Comeback Response frame timeout is a lot, for example retransmits GASInitial Request frame.
Be understandable that, can be in step 3, set the time-out time that receives GAS Comeback Response frame, concrete method is that terminal sets up on their own the time that receives GAS Comeback Response frame timeout according to the multicast time-out time when terminal sends GAS Initial Request frame.
Step 5. is after access point obtains Query Result, wait until that again the GASTIM Count value that sends the GASTIM field is to give terminal with regard to multicast GAS Comeback Response frame after 0 the Beacon frame, has concrete Query Result in the GAS Comeback Response frame.This multicast sends to need to send and once or repeatedly improves reliability.
Described Beacon frame the inside comprises GASTIM, Interworking Capability, GASCapability, four cells of ESSID.Described GASTIM is carried by the Beacon frame, is used to represent the time of multicast Query Result.
The technical program provides the method for two kinds of management time-out times: medium access control (Media AccessControl, MAC) layer-management time-out time and application layer management time-out time.With understanding, the content of managing response time-out time and managing multicast time-out time is put together for convenience of description.
Below introduce the method for MAC layer-management time-out time:
Terminal tells the MAC layer to receive the time-out time of GAS Initial Response frame and GAS Comeback Response frame by carrying multicast time-out time parameter and response timeout time parameter in the primitive.This method has two kinds of preferences.
Example 1: in the step 3 of present embodiment, the MLME-GAS-Initial-Request.request primitive notice MAC layer of terminal by revising is with the time-out time of response timeout time set reception GAS Initial Response frame.Be specially, station management entity (StationManagement Entity, SME) to media access control layer management entity (MAC SubLayerManagement Entity, MLME) send MLME-GAS-Initial-Request.request (GASQuery ID, Query, GASInitialResponseTimeout) primitive.Described MLME-GAS-Initial-Request.request primitive carries following parameter: GASInitialResponseTimeout.The effect of GASInitialResponseTimeout parameter is: terminal is set the time-out time that receives GAS Initial Response frame according to it at the MAC layer.When receiving GASInitial Response frame timeout, the MAC layer notifies SME to receive the state of GAS Initial Response frame timeout by MLME-GAS-Initial-Response.confirm.Be specially, MLME sends to SME and sends MLME-GAS-Initial-Response.confirm (StatusCode, GAS Query ID, GASComeback Delay, GASMulticastAddress, GASProtocolID, ResponseInfo) primitive.
In step 4, terminal is set the time-out time that receives GAS Comeback Response frame by newly-increased primitive notice MAC layer with the multicast time-out time after receiving GAS Initial Response frame.Be specially, SME sends MLME-GAS-Comeback-Response-Timeout.request (GAS QueryID, GASMulticastComebackDelay) primitive to MLME.Described MLME-GAS-Comeback-Response-Timeout.request primitive carries following parameter: GASMulticastComebackDelay.The effect of GASMulticastComebackDelay parameter is: terminal is set the time that receives GAS Comeback Response frame timeout according to it at the MAC layer.When receiving GAS Initial Response frame timeout, the MAC layer notifies SME to receive the state of GAS InitialResponse frame timeout by MLME-GAS-Comeback-Response-Timeout.confirm.Be specially, MLME sends to SME and sends MLME-GAS-Comeback-Response-Timeout.confirm (StatusCode, GAS Query ID) primitive.Described MLME-GAS-Initial-Request.request primitive carries following two parameter: GASMulticastComebackDelay and GASInitialResponseTimeout.The effect of GASMulticastComebackDelay parameter is: terminal is set the time that receives GAS Comeback Response frame timeout according to it at the MAC layer.The effect of GASInitialResponseTimeout parameter is: terminal is set the time that receives GAS Initial Response frame timeout according to it at the MAC layer.
Example 2: in step 3, terminal is set the time that receives GAS InitialResponse frame and GAS Comeback Response frame timeout by the MLME-GAS-Initial-Request.request primitive notice MAC layer of revising with response timeout time and multicast time-out time.Be specially, SME sends MLME-GAS-Initial-Request.request (GAS Query ID, Query, GASMulticastComebackDelay, GASInitialResponseTimeout) primitive to MLME.Described MLME-GAS-Initial-Request.request primitive carries following two parameter: GASMulticastComebackDelay and GASInitialResponseTimeout.The effect of GASMulticastComebackDelay parameter is: terminal is set the time that receives GAS Comeback Response frame timeout according to it at the MAC layer.The effect of GASInitialResponseTimeout parameter is: terminal is set the time that receives GAS Initial Response frame timeout according to it at the MAC layer.When receiving GAS Initial Response frame or GAS Comeback Response frame timeout, the MAC layer notifies SME to receive the state of GAS InitialResponse frame or GAS Comeback Response frame timeout by MLME-GAS-Initial-Response.confirm.Be specially, MLME sends MLME-GAS-Initial-Response.confirm (StatusCode, GAS Query ID, GASComeback Delay, GASMulticastAddress, GASProtocolID, ResponseInfo) primitive to SME.
Below introduce the method for application layer management time-out time:
In the step 3 of present embodiment, terminal is set the response timeout time in application layer, just receives the overtime of GAS Initial Response frame by newly-increased primitive notice MAC layer in the time of the overtime triggering of application layer.Be specially, application layer sends overtime trigger message to SME, SME sends MLME-GAS-Response-Stop-Receiving.request (GAS QueryID) primitive to MLME, and the effect of described primitive is: SME request MAC layer stops to receive GAS Initial Response frame.After the affirmation, MLME sends MLME-GAS-Response-Stop-Receiving.confirm (GAS Query ID, Result Code) primitive to SME, SME to application layer send timeout treatment the result (GAS Query ID, ResultCode).In step 4, terminal is set the multicast time-out time in application layer, just receives the overtime of GAS Comeback Response frame by newly-increased primitive notice MAC layer in the time of the overtime triggering of application layer.Be specially, application layer sends overtime trigger message to SME, SME sends MLME-GAS-Response-Stop-Receiving.request (GAS QueryID) primitive to MLME, and the effect of described primitive is: SME request MAC layer stops to receive GAS Comeback Response frame.After the affirmation, MLME sends MLME-GAS-Response-Stop-Receiving.confirm (GAS QueryID, Result Code) primitive to SME, and SME sends the result (GAS Query ID, Result Code) of timeout treatment to application layer.
Embodiment two:
Please refer to Fig. 4, be the signaling diagram of the embodiment of the invention two multicast inquiry mechanisms.
The step 2. access point Probe Request frame of Probe Response frame response terminal.The ProbeResponse frame has BSS information and the broadcast message ability (GAS Capability) that detects.Terminal is therefrom obtained BSS information and GAS Capability information after receiving Probe Response frame.
The GAS Capability information that step 3. terminal obtains according to step 2 is added query statement and is generated GAS Request IE, then terminal generates GAS Initial Request frame according to GAS Request IE, and the GAS Initial Request frame that generates is sent to access point initiates query requests.
Please refer to Fig. 5, be the Action field format schematic diagram of GAS Initial Response frame of the present invention.
Access point has increased multicast time-out time cell when generating GAS Initial Response frame in GAS Initial Response frame, after terminal is receiving GAS Initial Response frame, judge according to the multicast time-out time in this GAS Initial Response frame whether reception GAS Comeback Response is overtime.If overtime, withdraw from GAS Comeback Response frame and intercept state.Access point also judges according to this multicast time-out time whether send the GAS Comeback Response frame comprise Query Result overtime, and it is a lot of that access point is handled the method that sends GAS Comeback Response frame timeout, such as removing Query Result.
Please refer to Fig. 6, be the form schematic diagram of multicast time-out time cell of the present invention.The value of Element ID is 59 (Table 26 among the P802.11-REVma-D6.0 is seen in the distribution of Element ID value).The value of Length is 2, the value defined of GAS Multicast Comeback Delay the multicast time-out time, the unit of this time is a millisecond.
Step 5. is after access point obtains Query Result, wait until that again the GASTIM Count value that sends the GASTIM field is to give terminal with regard to multicast GAS Comeback Response frame after 0 the Beacon frame, has concrete Query Result in the GAS Comeback Response frame.
If access point does not obtain Query Result in the multicast time-out time of setting, access point can send the GAS Comeback Response frame that comprises multicast time-out time cell and arrive terminal, after terminal receives the GAS Comeback Response frame that carries multicast time-out time cell, upgrade the multicast time-out time according to multicast time-out time cell, then, terminal is according to the multicast time-out time that upgrades, judgement is in the multicast time-out time, whether received GAS Comeback Response frame, if not, withdraw from GAS ComebackResponse frame and intercept state.Be understandable that access point can also send the GAS Comeback Response frame that comprises multicast time-out time cell once more and arrive terminal, the number of times that sends this frame is decided according to network environment.
Embodiment three:
Please refer to Fig. 7, be the signaling diagram of the embodiment of the invention three multicast inquiry mechanisms.
The step 2. access point Probe Request frame of Probe Response frame response terminal.The ProbeResponse frame has BSS information and the broadcast message ability (GAS Capability) that detects.Terminal is therefrom obtained BSS information and GAS Capability information after receiving Probe Response frame.
The GAS Capability information that step 3. terminal obtains according to step 2 is added query statement and is generated GAS Request IE, then terminal generates GAS Initial Request frame according to GAS Request IE, and the GAS Initial Request frame that generates is sent to access point initiates query requests.
Please refer to Fig. 8, be the Action field format schematic diagram of GAS Initial Request frame of the present invention.When terminal generates GAS Initial Request frame, in GAS Initial Request frame, increase a multicast time-out time cell, then this GAS Initial Request frame is sent to access point.
Access point can increase multicast time-out time cell when responding GAS Initial Request frame with GAS Initial Response frame and consult the multicast time-out time in GAS Initial Response frame.Terminal is according to the multicast time-out time of described negotiation, and whether judgement sends the GAS ComebackResponse frame that comprises Query Result overtime, if overtime, withdraw from GAS Comeback Response frame and intercept state.
Step 5. is after access point obtains Query Result, wait until that again the GASTIM Count value that sends the GASTIM field is to give terminal with regard to multicast GAS Comeback Response frame after 0 the Beacon frame, has concrete Query Result in the GAS Comeback Response frame.
Be understandable that GAS Comeback Response frame is wherein a kind of concrete manifestation form of multicast response message, the multicast response message also comprises the primitive of being made up of some instructions, IP bag etc.
Please refer to Fig. 9,, comprise wireless terminal 1510 and WAP (wireless access point) 1520 for the present invention's first communication system schematic diagram.
Wireless terminal comprises that multicast overtime timer 1514, multicast response information interception unit 1512, state withdraw from judging unit 1513, state conversion unit 1511 and multicast time-out time acquiring unit 1515;
WAP (wireless access point) 1520 comprises multicast time-out time transmitting element 1521;
Multicast time-out time transmitting element 1521 is used for sending the information of carrying the multicast time-out time to wireless terminal 1510;
Multicast time-out time acquiring unit 1515, be used to receive described information of carrying the multicast time-out time after, obtain the multicast time-out time, send the multicast time-out time information of obtaining to described multicast overtime timer;
Multicast overtime timer 1514 is used for before entering multicast response information interception state the multicast time-out time being set; When described multicast time-out time arrives, send the multicast time-out time and arrive information;
Multicast response information interception unit 1512 is used for after entering multicast response information interception state the multicast response message being intercepted;
State withdraws from judging unit 1513, is used for judging whether to listen to the multicast response message receiving described multicast time-out time when arriving information, if not, sends multicast response information interception state and withdraws from information;
State conversion unit 1511 is used for withdrawing from multicast response information interception state receiving described intercepting after multicast response message state withdraws from information.
Please refer to Figure 10 and be second communication system schematic of the present invention, comprise wireless terminal 1610 and WAP (wireless access point) 1620.
Wireless terminal comprises that multicast overtime timer 1614, multicast response information interception unit 1612, state withdraw from judging unit 1613, state conversion unit 1611, multicast time-out time acquiring unit 1616 and terminal multicast time-out time negotiation element 1615;
WAP (wireless access point) 1620 comprises access point multicast time-out time negotiation element 1621 and multicast time-out time transmitting element 1612;
Access point multicast time-out time negotiation element 1621 is used for consulting the multicast time-out time with described wireless terminal 1610, sends described information of carrying the multicast time-out time of described negotiation to multicast time-out time transmitting element 1612;
Multicast time-out time transmitting element 1612 is used for sending the information of carrying the multicast time-out time to wireless terminal 1610;
Terminal multicast time-out time negotiation element 1615 is used for consulting the multicast time-out time with described WAP (wireless access point) 1620;
Multicast time-out time acquiring unit 1616 is used to obtain the multicast time-out time, sends the information of carrying the described multicast time-out time that obtains to described multicast overtime timer 1614;
Multicast overtime timer 1614 is used for before entering multicast response information interception state the multicast time-out time being set; When described multicast time-out time arrives, send the multicast time-out time and arrive information;
Multicast response information interception unit 1612 is used for after entering multicast response information interception state the multicast response message being intercepted;
State withdraws from judging unit 1613, is used for judging whether to listen to the multicast response message receiving described multicast time-out time when arriving information, if not, sends multicast response information interception state and withdraws from information;
State conversion unit 1611 is used for withdrawing from multicast response information interception state receiving described intercepting after multicast response message state withdraws from information.
More than the method that prevents multicast lock provided by the present invention and wireless terminal and WAP (wireless access point) and communication system are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (16)
1. a method that prevents the terminal multicast lock is used for WLAN (wireless local area network), it is characterized in that, comprising:
Before entering multicast response information interception state, terminal is provided with the multicast time-out time;
After entering multicast response information interception state, terminal is intercepted the multicast response message, if in described multicast time-out time, do not listen to the multicast response message, withdraws from multicast response information interception state.
2. method according to claim 1 is characterized in that, before the multicast time-out time was set, terminal received the information of carrying the multicast time-out time that WAP (wireless access point) sends; Described setting up procedure is that the multicast time-out time that terminal is carried according to described information is provided with the multicast time-out time.
3. method according to claim 2, it is characterized in that in the described process of intercepting, described terminal receives the information of carrying the multicast time-out time that described WAP (wireless access point) sends, according to the multicast time-out time replacement multicast time-out time that described information is carried, proceed to intercept.
4. method according to claim 1 is characterized in that, before the multicast time-out time was set, terminal and WAP (wireless access point) were consulted the multicast time-out time; Described setting up procedure is that terminal is provided with the multicast time-out time according to the multicast time-out time of described negotiation.
5. method according to claim 4 is characterized in that, described multicast response message is that response message is replied in generic broadcasted service; Described negotiations process is, terminal sends the generic broadcasted service original request message that carries the multicast time-out time to WAP (wireless access point), the multicast time-out time that described WAP (wireless access point) is carried according to described information is consulted the multicast time-out time, sends the generic broadcasted service initial communication information of the multicast time-out time that carries described negotiation to described terminal.
6. method according to claim 1 is characterized in that, described multicast response message is that response message is replied in generic broadcasted service.
7. method according to claim 6 is characterized in that, before entering generic broadcasted service answer response information interception state, terminal enters generic broadcasted service initial communication information and intercepts state; Enter before generic broadcasted service initial communication information intercepts state, terminal is provided with the response timeout time; Enter after generic broadcasted service initial communication information intercepts state, terminal is intercepted generic broadcasted service initial communication information, if in the time, do not listen to generic broadcasted service initial communication information, withdraw from generic broadcasted service initial communication information and intercept state at described response timeout.
8. method according to claim 6 is characterized in that, described the multicast time-out time is set before, station management entity sends the information carry the multicast time-out time to the media access control layer management entity; Described setting up procedure is that the multicast time-out time that the described information that terminal receives according to described media access control layer management entity is carried is provided with the multicast time-out time; Described withdraw from generic broadcasted service and reply the response information interception state after, described media access control layer management entity sends generic broadcasted service to described station management entity and replys response information interception state exit confirmation information.
9. method according to claim 6, it is characterized in that, described withdraw from generic broadcasted service and reply the response information interception state before, station management entity sends generic broadcasted service to the media access control layer management entity and replys the response information interception state and withdraw from information.
10. a wireless terminal is used for WLAN (wireless local area network), it is characterized in that, comprises that multicast overtime timer, multicast response information interception unit, state withdraw from judging unit and state conversion unit;
The multicast overtime timer is used for before entering multicast response information interception state the multicast time-out time being set; When described multicast time-out time arrives, send the multicast time-out time and arrive information;
Multicast response information interception unit is used for after entering multicast response information interception state the multicast response message being intercepted;
State withdraws from judging unit, is used for judging whether to listen to the multicast response message receiving described multicast time-out time when arriving information, if not, sends multicast response information interception state and withdraws from information;
State conversion unit is used for withdrawing from multicast response information interception state receiving described intercepting after multicast response message state withdraws from information.
11. wireless terminal according to claim 10 is characterized in that, also comprises multicast time-out time acquiring unit:
Multicast time-out time acquiring unit is used to obtain the multicast time-out time, sends the information of carrying the described multicast time-out time that obtains to described multicast overtime timer.
12. wireless terminal according to claim 11 is characterized in that, also comprises terminal multicast time-out time negotiation element:
Terminal multicast time-out time negotiation element is used for consulting the multicast time-out time with WAP (wireless access point).
13. a WAP (wireless access point) is characterized in that, comprises multicast time-out time transmitting element:
Multicast time-out time transmitting element is used for sending the information of carrying the multicast time-out time to wireless terminal.
14. WAP (wireless access point) according to claim 13 is characterized in that, also comprises access point multicast time-out time negotiation element:
Access point multicast time-out time negotiation element is used for consulting the multicast time-out time with described wireless terminal, sends described information of carrying the multicast time-out time of described negotiation to described multicast time-out time transmitting element.
15. a wireless lan communication system is characterized in that, comprises wireless terminal and WAP (wireless access point);
Wireless terminal comprises that multicast overtime timer, multicast response information interception unit, state withdraw from judging unit, state conversion unit and multicast time-out time acquiring unit;
WAP (wireless access point) comprises multicast time-out time transmitting element;
Multicast time-out time transmitting element is used for sending the information of carrying the multicast time-out time to described wireless terminal;
Multicast time-out time acquiring unit is used to obtain the multicast time-out time, sends the information of carrying the described multicast time-out time that obtains to described multicast overtime timer;
The multicast overtime timer is used for before entering multicast response information interception state the multicast time-out time being set; When described multicast time-out time arrives, send the multicast time-out time and arrive information;
Multicast response information interception unit is used for after entering multicast response information interception state the multicast response message being intercepted;
State withdraws from judging unit, is used for judging whether to listen to the multicast response message receiving described multicast time-out time when arriving information, if not, sends multicast response information interception state and withdraws from information;
State conversion unit is used for withdrawing from multicast response information interception state receiving described intercepting after multicast response message state withdraws from information.
16. communication system according to claim 15 is characterized in that, described wireless terminal also comprises terminal multicast time-out time negotiation element; Described WAP (wireless access point) also comprises access point multicast time-out time negotiation element;
Terminal multicast time-out time negotiation element is used for consulting the multicast time-out time with described WAP (wireless access point);
Access point multicast time-out time negotiation element is used for consulting the multicast time-out time with described wireless terminal, sends described information of carrying the multicast time-out time of described negotiation to described multicast time-out time transmitting element.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101535292A CN101146338B (en) | 2006-09-11 | 2006-09-11 | Method and radio terminal for preventing from multicast lock and radio access point and communication system |
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| CN2006101535292A CN101146338B (en) | 2006-09-11 | 2006-09-11 | Method and radio terminal for preventing from multicast lock and radio access point and communication system |
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| CN101146338A true CN101146338A (en) | 2008-03-19 |
| CN101146338B CN101146338B (en) | 2010-08-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104813689A (en) * | 2012-12-27 | 2015-07-29 | 英特尔公司 | Broadcast based discovery of WI-FI networks, devices and services |
| CN106131925A (en) * | 2011-11-01 | 2016-11-16 | 华为技术有限公司 | GAS query method and device |
| CN106933685A (en) * | 2017-03-10 | 2017-07-07 | 广东欧珀移动通信有限公司 | A kind of management method of broadcast recipients, device and terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307828C (en) * | 2004-08-10 | 2007-03-28 | 华为技术有限公司 | Method for building bearing in multimedia broadcast/multicast service |
| CN100344181C (en) * | 2005-03-28 | 2007-10-17 | 华为技术有限公司 | Method of simplifying message transmission processing |
-
2006
- 2006-09-11 CN CN2006101535292A patent/CN101146338B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106131925A (en) * | 2011-11-01 | 2016-11-16 | 华为技术有限公司 | GAS query method and device |
| CN106131925B (en) * | 2011-11-01 | 2020-01-03 | 华为技术有限公司 | GAS (generic Access service) query method and device |
| CN104813689A (en) * | 2012-12-27 | 2015-07-29 | 英特尔公司 | Broadcast based discovery of WI-FI networks, devices and services |
| CN106933685A (en) * | 2017-03-10 | 2017-07-07 | 广东欧珀移动通信有限公司 | A kind of management method of broadcast recipients, device and terminal |
| CN106933685B (en) * | 2017-03-10 | 2019-10-15 | Oppo广东移动通信有限公司 | A kind of management method of broadcast recipients, device and terminal |
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| Publication number | Publication date |
|---|---|
| CN101146338B (en) | 2010-08-18 |
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