CN102340742B - Data processing method and access point equipment - Google Patents
Data processing method and access point equipment Download PDFInfo
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- CN102340742B CN102340742B CN201010236139.8A CN201010236139A CN102340742B CN 102340742 B CN102340742 B CN 102340742B CN 201010236139 A CN201010236139 A CN 201010236139A CN 102340742 B CN102340742 B CN 102340742B
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Abstract
The invention discloses a data processing method and access point equipment. The method comprises the following steps of: acquiring importance degree information of multicast video data according to the received multicast video data; and if judging that set unicast rule information contains importance degree information of the multicast video data, transmitting the multicast video data in a unicast form. According to the data processing method provided by the embodiment, the importance degree information of the multicast video data is acquired according to the received multicast video data and the multicast video data are transmitted in the unicast form when the set unicast rule information is judged to contain the importance degree information. The unicast technology has a retransmission protecting mechanism, so that the transmission quality of the multicast video data is improved by transmitting the multicast video data containing the importance degree information in the unicast rule information in the unicast form.
Description
Technical field
The embodiment of the present invention relates to communication technical field, particularly a kind of data processing method and access point apparatus.
Background technology
Along with the development of wireless communication technology, WLAN (wireless local area network) (Wireless Local Area Network, hereinafter referred to as: application WLAN) is more and more extensive.In WLAN, video data is transmitted by wireless channel.In order to save bandwidth, in WALN, access point (Access Point, hereinafter referred to as: AP) can adopt multicasting technology by video data transmission to website (Station, hereinafter referred to as: STA).
Because the error rate of wireless channel is higher; and the multicasting technology of given application on wireless channel does not retransmit protection mechanism again in IEEE802.11; applying in WLAN like this when multicasting technology transmits multicasting video data easily causes multicasting video data to be lost, thus in WLAN, adopt multicasting technology to carry out to multicasting video data the transmission quality that transmission can reduce multicasting video data.
Summary of the invention
The embodiment of the present invention provides a kind of data processing method and access point apparatus, in order to improve the transmission quality of multicasting video data.
The embodiment of the present invention provides a kind of data processing method, comprising:
The importance degree information of described multicasting video data is obtained according to the multicasting video data received;
If judge, the clean culture Rule Information arranged comprises the importance degree information of described multicasting video data, then sent with unicast fashion by described multicasting video data.
The embodiment of the present invention provides a kind of access point apparatus, comprising:
Acquisition module, for obtaining the importance degree information of described multicasting video data according to the multicasting video data received;
Judge module, for judging whether comprise the importance degree information of described multicasting video data in the clean culture Rule Information that arranges;
Sending module, for when judging that described clean culture Rule Information comprises described importance degree information, sends described multicasting video data with unicast fashion.
The data processing method that the present embodiment provides and access point apparatus; the importance degree information of this multicasting video data is obtained according to the multicasting video data received; and when judging that the clean culture Rule Information arranged comprises the importance degree information of this multicasting video data, this multicasting video data is sent with unicast fashion; retransmit protection mechanism because unicast technique exists, therefore the multicasting video data of the importance degree information comprised in clean culture Rule Information is sent the transmission quality that improve multicasting video data with unicast fashion.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The flow chart of a kind of data processing method that Fig. 1 provides for the embodiment of the present invention one;
The flow chart of a kind of data processing method that Fig. 2 a provides for the embodiment of the present invention two;
Fig. 2 b is multicast schematic diagram in the embodiment of the present invention two;
The flow chart of a kind of data processing method that Fig. 3 provides for the embodiment of the present invention three;
The structural representation of a kind of access point apparatus that Fig. 4 provides for the embodiment of the present invention four;
The structural representation of a kind of access point apparatus that Fig. 5 provides for the embodiment of the present invention five.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The flow chart of a kind of data processing method that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, the method comprises:
The multicasting video data that step 101, basis receive obtains the importance degree information of this multicasting video data.
Each step in the present embodiment can be performed by AP.
In the present embodiment, multicast source sends multicast video streams with multicast form, and this multicast video streams comprises multiple multicasting video data.Multicast source sends the multicasting video data in multicast video streams successively, and AP receives the multicasting video data in this multicast video streams successively.Because the significance level of each multicasting video data in multicast video streams is different, importance degree information therefore can be adopted to represent the significance level of this multicasting video data in multicast video streams.
In the present embodiment, if the multicasting video data that AP receives comprises the importance degree information of this multicasting video data, then AP directly can obtain the importance degree information of this multicasting video data after receiving this multicasting video data from multicasting video data.Such as: according to the significance level of multicasting video data, importance degree information can be high importance degree information, medium importance degree information or low importance degree information.
Or, in the present embodiment, if the multicasting video data that AP receives does not comprise the importance degree information of this multicasting video data, then AP can carry out analyzing and processing to this multicasting video data after receiving this multicasting video data, draws the importance degree information of this multicasting video data.Such as: if multicasting video data is when carrying out the mpeg2 video data of encoding according to mpeg2 coded system, this multicasting video data does not comprise importance degree information, then AP can carry out analyzing and processing to this multicasting video data, if analyzing this multicasting video data is I frame data, then the importance degree information of this multicasting video data is set to importance degree information corresponding to I frame data, if analyzing this multicasting video data is P frame data, the importance degree information of this multicasting video data is set to importance degree information corresponding to P frame data, if analyzing this multicasting video data is B frame data, the importance degree information of this multicasting video data is set to importance degree information corresponding to B frame data.Such as: the importance degree information that I frame data are corresponding can be 11, the importance degree information that P frame data is corresponding can be the importance degree information that 10, B frame data are corresponding can be 00.The significance level of I frame data is higher than the significance level of P frame data, and the significance level of P frame data is higher than the significance level of B frame data.Wherein, the importance degree information that I frame data are corresponding is high importance degree information, and importance degree information corresponding to P frame data is medium importance degree information, and the importance degree information that B frame data are corresponding is low importance degree information.
If step 102 judges that the clean culture Rule Information arranged comprises the importance degree information of this multicasting video data, then sent with unicast fashion by this multicasting video data, this clean culture Rule Information comprises importance degree information and represents that the multicasting video data comprising this importance degree information sends with unicast fashion.
For improving the transmission quality of multicasting video data, according to importance degree information, the multicasting video data that the part in multicast video streams is relatively important can be sent with unicast fashion, all the other multicasting video datas are still sent with multicast form.Therefore, in the present embodiment, AP can arrange clean culture Rule Information, and this clean culture Rule Information comprises importance degree information and represents that the multicasting video data comprising this importance degree information sends with unicast fashion.In the present embodiment, the multicasting video data sent with unicast fashion is the higher multicasting video data of significance level.
Due to unicast technique exist retransmit protection mechanism, therefore at AP by this multicasting video data with in unicast fashion process of transmitting, if do not receive ACK message, then can adopt retransmit protection mechanism again send this multicasting video data with unicast fashion.
Further, if AP judges that the clean culture Rule Information arranged does not comprise the importance degree information of this multicasting video data, then described multicasting video data is sent with multicast form.
The data processing method that the present embodiment provides; the importance degree information of this multicasting video data is obtained according to the multicasting video data received; and when judging that the clean culture Rule Information arranged comprises the importance degree information of this multicasting video data, this multicasting video data is sent with unicast fashion; retransmit protection mechanism because unicast technique exists, therefore the multicasting video data of the importance degree information comprised in clean culture Rule Information is sent the transmission quality that improve multicasting video data with unicast fashion.
The flow chart of a kind of data processing method that Fig. 2 a provides for the embodiment of the present invention two, as shown in Figure 2 a, the method comprises:
Step 201, STA send Internet igmpinternet (Internet GroupManagement Protocol to AP, hereinafter referred to as: IGMP) datagram adds multicast group with request, and this IGMP datagram comprises the site information of multicast address and STA.
Fig. 2 b is multicast schematic diagram in the embodiment of the present invention two, and as shown in Figure 2 b, WLAN comprises AP 120, STA 130, STA 140 and STA 150.WLAN can comprise multiple AP, is described in the present embodiment for AP 120.STA 130 sends IGMP datagram to AP 120 and adds multicast group with request, and this IGMP datagram comprises the site information of multicast address and STA 130.Similarly, STA 140 sends IGMP datagram to AP 120 and adds multicast group with request, and this IGMP datagram comprises the site information of multicast address and STA 140.STA 150 sends IGMP datagram to AP 120 and adds multicast group with request, and this IGMP datagram comprises the site information of multicast address and STA 140.The multicast destination address of the multicasting video data that this multicast address is STA 130, STA 140 and STA 150 asks, this multicast address can adopt D class specific address.
The site information of multicast address and STA joins in multicast information table corresponding to this multicast group by step 202, AP, and this multicast address corresponds to the site information of this STA.
Multicast information table comprises the site information of multicast address and each STA corresponding with this multicast address.Wherein, the site information of multicast address and each STA possesses mapping relations.In the present embodiment, the site information of multicast address and STA joins in multicast information table by AP, thus realizes STA to join in this multicast group.As shown in Figure 2 b, the site information of multicast address and the site information of STA 130, the site information of STA 140 and STA 150 joins in multicast information table by AP 120, thus realizes STA 130, STA 140 and STA 150 to join in this multicast group.
The multicasting video data that step 203, AP send according to multicast address receiving group source, this multicasting video data comprises the importance degree information of this multicast address and this multicasting video data.
In the present embodiment, multicast source sends multicast video streams with multicast form, and this multicast video streams comprises multiple multicasting video data.Multicast source sends the multicasting video data in multicast video streams successively, and AP receives the multicasting video data in this multicast video streams successively according to multicast address.Each multicasting video data in this multicast video streams includes this multicast address.Because the significance level of each multicasting video data in multicast video streams is different, therefore multicast source is when encoding to multicast video streams, can be the importance degree information that each multicasting video data arranges this multicasting video data, this importance degree information be for representing the significance level of this video data in multicast video streams.
Such as: when multicasting video data is according to when H.264 coded system carries out the H.264 video data of encoding, the form of this multicasting video data can be as shown in table 1:
As shown in Table 1, this importance degree information can be real time transport protocol (Real-time TransportProtocol, hereinafter referred to as: network abstract layer reference identifier RTP) in load (Networkabstract layer reference Identical, hereinafter referred to as: NRI).NRI can be 00,01,10 or 11.Wherein, the significance level of the multicasting video data of NRI=11 is the highest; The significance level of the multicasting video data of NRI=10 is lower than the significance level of the multicasting video data of NRI=11; The significance level of the multicasting video data of NRI=01 is lower than the significance level of the multicasting video data of NRI=10; The significance level of the multicasting video data of NRI=00 is lower than the significance level of the multicasting video data of NRI=01.Wherein, high importance degree information can comprise NRI=11, and medium importance degree information can comprise NRI=10 and NRI=01, and low importance degree information can comprise NRI=00.
As shown in Figure 2 b, multicast source 110 sends multicasting video data with multicast form to WLAN, the multicasting video data comprising this multicast address that AP 120 sends according to the multicast address receiving group source in multicast information table.
Step 204, AP obtain the importance degree information that this multicasting video data comprises from this multicasting video data.
In the present embodiment, AP, by reading the RTP load of multicasting video data to obtain NRI, namely obtains importance degree information.
Step 205, AP judge the importance degree information whether comprising this multicasting video data in the clean culture Rule Information arranged, and if it is perform step 206, if otherwise perform step 207.
When the multicasting video data received is sent to multicast group with multicast form by AP; because multicasting technology in WLAN does not arrange re-transmission protection mechanism; therefore multicast group can be caused cannot to receive the situation of multicasting video data, thus reduce the transmission quality of multicasting video data.In the present embodiment, for improving the transmission quality of multicasting video data, the multicasting video data that the part in multicast video streams is relatively important can be sent with unicast fashion, all the other multicasting video datas are still sent with multicast form.Therefore AP can arrange clean culture Rule Information, and this clean culture Rule Information comprises importance degree information and represents that the multicasting video data comprising this importance degree information sends with unicast fashion.In the present embodiment, the multicasting video data sent with unicast fashion is the higher multicasting video data of significance level, such as: clean culture Rule Information can comprise high importance degree information, or comprises high importance degree information and medium importance degree information.
Such as: when importance degree information is NRI, high importance degree information 11 can be comprised in clean culture Rule Information, or high importance degree information 11 and medium importance degree information 10 can be comprised in clean culture Rule Information, or high importance degree information 11, medium importance degree information 10 and 01 in clean culture Rule Information, can be comprised.And the multicasting video data of low importance degree information NRI=00 is as the minimum multicasting video data of significance level in multicast video streams, can be sent to multicast group with multicast form.
Such as: when the clean culture Rule Information arranged comprises 11 and 10, in the multicasting video data received during importance degree information NRI=11, AP judges that the clean culture Rule Information arranged comprises the importance degree information in this multicasting video data, then perform step 205; When the clean culture Rule Information arranged comprises 11 and 10, and in the multicasting video data received during importance degree information NRI=00, AP judges that the clean culture Rule Information arranged does not comprise the importance degree information in this multicasting video data, then perform step 207.
This multicasting video data to be sent to each website in multicast group by step 206, AP with unicast fashion according to the site information corresponding with this multicast address in multicast information table.
As shown in Figure 2 b, multicasting video data is sent STA 130 according to the site information of the STA 130 that multicast group information comprises by AP 120, multicasting video data is sent STA 140 according to the site information of the STA 140 that multicast group information comprises by AP 120, and multicasting video data is sent STA 150 by the site information of STA 150 that AP 120 comprises according to multicast group information.
In the present embodiment, when STA receives the multicasting video data that AP sends according to site information, return ACK message to AP.If AP does not receive ACK message, then according to re-transmission protection mechanism, again send this multicasting video data to STA, until receive the ACK message that STA returns.Thus make STA receive this multicasting video data, to improve the transmission quality of this multicasting video data.
This multicasting video data is sent to multicast group corresponding to this multicast address with multicast form according to multicast address by step 207, AP.
The data processing method that the present embodiment provides, AP receives multicasting video data, when judging the importance degree information that the clean culture Rule Information arranged comprises in multicasting video data, this multicasting video data is sent to each website in multicast group with unicast fashion, when judging the importance degree information that the clean culture Rule Information arranged does not comprise in multicasting video data, this multicasting video data is sent to multicast group with multicast form, protection mechanism is retransmitted because unicast technique exists, therefore the multicasting video data of the importance degree information comprised in clean culture Rule Information is sent the transmission quality that improve multicasting video data with unicast fashion.Due in the present embodiment, the partaof video data in multicast video streams is sent with unicast fashion, all the other multicasting video datas are sent with multicast form, send compared with multicast video streams with prior art with unicast fashion, save transmission bandwidth.Therefore the data processing method provided of the present embodiment, can improve the transmission quality of multicasting video data while saving transmission bandwidth.
The flow chart of a kind of data processing method that Fig. 3 provides for the embodiment of the present invention three, as shown in Figure 3, the method comprises:
Step 301 and step 302 see the step 201 in above-described embodiment two and step 202, can repeat no more herein.
Step 303, AP arrange clean culture Rule Information according to the channel condition information generated.
In the present embodiment, AP can generate channel condition information, and arranges clean culture Rule Information according to channel condition information.
Channel condition information is for representing the situation of wireless channel in WLAN.In the present embodiment, the situation situation that is good or wireless channel that channel condition information can comprise wireless channel is poor.Such as: channel condition information can be recorded as 0 or 1, represent that when channel condition information is 0 the situation of this wireless channel is poor, represent that when channel condition information is 1 the situation of this wireless channel is good.
In the present embodiment, AP can arrange clean culture Rule Information according to channel condition information.When the situation of wireless channel is good, clean culture Rule Information is set to comprise high importance degree information; When the situation difference of wireless channel, clean culture Rule Information is set to comprise high importance degree information and medium importance degree information.
Such as: when the situation difference of wireless channel, clean culture Rule Information can be set to comprise 11 and 10, or clean culture Rule Information is set to comprise 11,10 and 01.When the situation of wireless channel is good, clean culture Rule Information can be set to comprise 11.
This step is that AP dynamically arranges the process of clean culture Rule Information according to channel condition information.When channel condition information changes, AP can reset clean culture Rule Information according to the channel condition information after change.
In the present embodiment, when arranging clean culture Rule Information according to channel condition information first, channel condition information default setting is that the situation of wireless channel is poor.
The multicasting video data that step 304, AP send according to multicast address receiving group source, this multicasting video data comprises the importance degree information of this multicast address and this multicasting video data.
In the present embodiment, can see the step 203 in embodiment two to the description of step 304.
Step 305, AP obtain the importance degree information that this multicasting video data comprises from this multicasting video data.
Step 306, AP judge the importance degree information whether comprising this multicasting video data in the clean culture Rule Information arranged, and if it is perform step 307, if otherwise perform step 309.
In the present embodiment, can see the step 205 in embodiment two to the description of step 306.
This multicasting video data to be sent to each website in multicast group by step 307, AP with unicast fashion according to the site information corresponding with this multicast address in multicast information table.
In the present embodiment, can see the step 206 in embodiment two to the description of step 307.
Step 308, AP statistics sends the unicast retransmission number of times of this multicasting video data, generates channel condition information according to this unicast retransmission number of times, and continues to perform step 303.
In the present embodiment, unicast retransmission number of times is AP resends this multicasting video data when not receiving number of times from the ACK message that STA returns to STA.
In the present embodiment, if when AP does not receive ACK message that STA returns and resends this multicasting video data to STA, AP counts the number of times resending this multicasting video data, namely counts unicast retransmission number of times, and this unicast retransmission number of times is not 0.If AP sends the ACK message receiving STA after multicasting video data and return to STA with unicast fashion, represent that AP does not send multicasting video data to STA again, then AP counts unicast retransmission number of times is 0.
After AP counts unicast retransmission number of times, generate channel condition information according to this unicast retransmission number of times.Such as: if it is not 0 that AP counts unicast retransmission number of times, show that the situation of wireless channel is poor, then drawing and recording channel condition information is 0; If it is 0 that AP counts unicast retransmission number of times, show that the situation of wireless channel is good, then drawing and recording channel condition information is 1.
This multicasting video data is sent to multicast group corresponding to this multicast address with multicast form according to multicast address by step 309, AP.
The data processing method that the present embodiment provides, AP receives multicasting video data, when judging the importance degree information that the clean culture Rule Information arranged comprises in multicasting video data, this multicasting video data is sent to each website in multicast group with unicast fashion, when judging the importance degree information that the clean culture Rule Information arranged does not comprise in multicasting video data, this multicasting video data is sent to multicast group with multicast form, protection mechanism is retransmitted because unicast technique exists, therefore the multicasting video data of the importance degree information comprised in clean culture Rule Information is sent the transmission quality that improve multicasting video data with unicast fashion.Due in the present embodiment, the partaof video data in multicast video streams is sent with unicast fashion, all the other multicasting video datas are sent with multicast form, send compared with video flowing with prior art with unicast fashion, save transmission bandwidth.Therefore the data processing method that provides of the present embodiment, can improve the transmission quality of multicasting video data while saving transmission bandwidth.In the present embodiment, AP can generate channel condition information according to the unicast retransmission number of times counted, and clean culture Rule Information is set according to the channel condition information generated, thus the quantity of the multicasting video data sent with unicast fashion according to the situation dynamic conditioning of wireless channel can be realized.In prior art, due in WLAN with the transmission rate of multicasting video data of multicast form transmission, adopt transmission rate minimum in the transmission rate of website in multicast group, therefore in WALN, during multicasting video data transmission, delay variation is larger, due to the partaof video data in multicast video streams is sent with unicast fashion in the present embodiment, thus delay variation when reducing multicasting video data transmission.
The structural representation of a kind of access point apparatus that Fig. 4 provides for the embodiment of the present invention four, as shown in Figure 4, this access point apparatus comprises: acquisition module 11, judge module 12 and sending module 13.
Acquisition module 11 is for obtaining the importance degree information of this multicasting video data according to the multicasting video data received.Such as: multicasting video data can comprise this importance degree information, then acquisition module 11 can obtain the importance degree information of this multicasting video data from this multicasting video data.
Judge module 12 is for judging whether comprise the importance degree information of this multicasting video data in the clean culture Rule Information that arranges.
Sending module 13 is for when judging that this clean culture Rule Information comprises this importance degree information, sent with unicast fashion by this multicasting video data, this clean culture Rule Information comprises importance degree information and represents that the multicasting video data comprising this importance degree information sends with unicast fashion.Particularly, this multicasting video data comprises multicast address, then sending module 13 is specifically for being sent to each website in multicast group with unicast fashion by this multicasting video data according to site information corresponding with multicast address in multicast information table.
Further, this multicasting video data also for when judging that the clean culture Rule Information arranged does not comprise this importance degree information, sends with multicast form by sending module 13.
The access point apparatus that the present embodiment provides can be used for realizing the data processing method that above-described embodiment one or embodiment two provide.
The access point apparatus that the present embodiment provides, receive multicasting video data, when judging the importance degree information that the clean culture Rule Information arranged comprises in multicasting video data, this multicasting video data is sent with unicast fashion, when judging the importance degree information that the clean culture Rule Information arranged does not comprise in multicasting video data, this multicasting video data is sent with multicast form, protection mechanism is retransmitted because unicast technique exists, therefore the multicasting video data of the importance degree information comprised in clean culture Rule Information is sent the transmission quality that improve multicasting video data with unicast fashion.Due in the present embodiment, the partaof video data in multicast video streams is sent with unicast fashion, all the other multicasting video datas are sent with multicast form, send compared with multicast video streams with prior art with unicast fashion, save transmission bandwidth.Therefore the access point apparatus provided of the present embodiment, can improve the transmission quality of multicasting video data while saving transmission bandwidth.
The structural representation of a kind of access point apparatus that Fig. 5 provides for the embodiment of the present invention five, as shown in Figure 5, the present embodiment is on the basis of above-described embodiment four, and this access point apparatus also comprises: arrange module 14.
Module 14 is set for arranging clean culture Rule Information according to the channel condition information generated, and the clean culture Rule Information of setting is exported to judge module 12.
Further, this access point apparatus also comprises: statistical module 15 and generation module 16.
Statistical module 15 sends the unicast retransmission number of times of multicasting video data for adding up sending module 13.
Generation module 16 generates this channel condition information for the unicast retransmission number of times counted according to statistical module 15, and is exported to by the channel condition information of generation and arrange module 14.
The access point apparatus that the present embodiment provides can be used for realizing the data processing method that above-described embodiment three provides.
The access point apparatus that the present embodiment provides can generate channel condition information according to the unicast retransmission number of times counted, and clean culture Rule Information is set according to the channel condition information generated, thus the quantity of the multicasting video data sent with unicast fashion according to the situation dynamic conditioning of wireless channel can be realized.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a data processing method, is characterized in that, comprising:
According to channel condition information, clean culture Rule Information is set;
Describedly described clean culture Rule Information be set according to channel condition information comprise: when described channel condition information be the situation of wireless channel good time, described clean culture Rule Information is set to high importance degree information; When described channel condition information is the situation difference of wireless channel, described clean culture Rule Information is set to comprise high importance degree information and medium importance degree information;
The importance degree information of described multicasting video data is obtained according to the multicasting video data received;
Described importance degree information comprises described high importance degree information or described medium importance degree information;
If judge, the described clean culture Rule Information arranged comprises the importance degree information of described multicasting video data, then sent with unicast fashion by described multicasting video data.
2. method according to claim 1, is characterized in that, also comprises:
If judge, the clean culture Rule Information arranged does not comprise the importance degree information of described multicasting video data, then sent with multicast form by described multicasting video data.
3. method according to claim 1, is characterized in that, described multicasting video data comprises multicast address, and described transmission with unicast fashion by described multicasting video data comprises:
According to site information corresponding with described multicast address in multicast information table described multicasting video data is sent to each website in multicast group with unicast fashion.
4. method according to claim 1, is characterized in that, described according to channel condition information, clean culture Rule Information is set before comprise:
Statistics sends the unicast retransmission number of times of described multicasting video data, generates described channel condition information according to described unicast retransmission number of times.
5., according to the arbitrary described method of Claims 1-4, it is characterized in that, described multicasting video data comprises described importance degree information;
The importance degree information that the multicasting video data that then described basis receives obtains described multicasting video data comprises: from described multicasting video data, obtain the described importance degree information that described multicasting video data comprises.
6., according to the arbitrary described method of Claims 1-4, it is characterized in that, the importance degree information that the multicasting video data that described basis receives obtains described multicasting video data comprises:
Analyzing and processing is carried out to described multicasting video data, draws the importance degree information of described multicasting video data.
7. an access point apparatus, is characterized in that, comprising:
Module being set, for arranging clean culture Rule Information according to channel condition information, and the clean culture Rule Information of setting being exported to judge module;
Wherein, when described channel condition information be the situation of wireless channel good time, described clean culture Rule Information is set to high importance degree information; When described channel condition information is the situation difference of wireless channel, described clean culture Rule Information is set to comprise high importance degree information and medium importance degree information by the described module that arranges;
Acquisition module, for obtaining the importance degree information of described multicasting video data according to the multicasting video data received;
Described importance degree information comprises described high importance degree information or described medium importance degree information;
Described judge module, for judging whether comprise the importance degree information of described multicasting video data in the described clean culture Rule Information that arranges;
Sending module, for when judging that described clean culture Rule Information comprises described importance degree information, sends described multicasting video data with unicast fashion.
8. access point apparatus according to claim 7, it is characterized in that, described multicasting video data comprises multicast address, then described sending module is specifically for being sent to each website in multicast group with unicast fashion by described multicasting video data according to site information corresponding with described multicast address in multicast information table.
9. access point apparatus according to claim 7, is characterized in that, also comprises:
Statistical module, sends the unicast retransmission number of times of described multicasting video data for adding up described sending module;
Generation module, generates described channel condition information for the unicast retransmission number of times gone out according to described statistical module counts, and is exported to by the channel condition information of generation and describedly arrange module.
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