CN101521626B - Method for stepping control of multicast programs and access equipment - Google Patents
Method for stepping control of multicast programs and access equipment Download PDFInfo
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- CN101521626B CN101521626B CN200810189665A CN200810189665A CN101521626B CN 101521626 B CN101521626 B CN 101521626B CN 200810189665 A CN200810189665 A CN 200810189665A CN 200810189665 A CN200810189665 A CN 200810189665A CN 101521626 B CN101521626 B CN 101521626B
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Abstract
The invention discloses a method for stepping control of multicast programs, which comprises the following steps that: terminal equipment sends a request message of the multicast programs to access equipment; the access equipment inquires stepping parameters of the obtained programs according to the request message of the multicast programs; and the access equipment generates multicast program data according to the stepping parameters of the programs. With the invention, operators preferably request certain multicast programs according to stepping control terminal equipment of the multicast programs; the operators can provide differentiated services according to the program providers so as to improve the competitive strength. In addition, the method achieves that the terminal equipment only can request a program with the high bandwidth, while request a plurality of programs with the low bandwidth according to the classification of the programs of high and low bandwidths, so the bandwidth of the terminal equipment can be most effectively used, further the optimal experience for the terminal equipment to request the programs can be achieved, the limitation on the programs simultaneously requested by the multicast of multicast bandwidth CAC time limit can be eliminated.
Description
Technical field
The present invention relates to the network television multicast technical field, relate in particular to a kind of method and access device that group broadcasting program is carried out grading control.
Background technology
Web TV adopts the multicast mode to commence business mostly; There are a lot of controlled multicasting technology can realize that a terminal equipment watches the Bandwidth Management problem of a plurality of programs at present; But the multicast data flow of each program all needs the total bandwidth of occupied terminal equipment in should technology, and the bandwidth of terminal equipment is limited, when the program total bandwidth that need watch when terminal equipment surpasses the total bandwidth of terminal equipment; On the terminal equipment terminal, mosaic can occur, very the person can not see significant picture.In order to address this problem, adopt CAC (Connection Admission Control connects permission control) technology usually; When the terminal equipment request program; According to the program bandwidth of the current program request of terminal equipment, the total bandwidth actual with terminal equipment compares, if the program bandwidth of new program request adds bandwidth that request program takies smaller or equal to the actual total bandwidth of terminal equipment; Then allow the new program of terminal equipment program request, otherwise do not allow; If terminal equipment really needs the new program of program request, then need roll off the production line a current program, abdicate enough bandwidth, then could successful program request.
The multicast mode adopts IGMP agreement (Internet Group Management Protocol, Internet group management protocol of the multicast group) control information transmission usually.In TCP/IP (Transmission ControlProtocol/Internet Protocol, transmission control protocol/internet protocol) protocol architecture, IGMP has experienced three versions of IGMP V1/V2/V3.
Wherein, the protocol format of IGMP V1 version is as shown in Figure 1, comprising: Version (version), and value is 1; Type (type) when Type is 1, represents Host Membership Query (multicast member inquiry), when Type is 2, represents Host Membership Report (multicast member report); Checksum (check word) is the IGMP message-length; Be 16 detections of the whole pay(useful) load of IP bag, this territory is made as 0, when the calculation check word, this territory is wrapped in together and calculates; When transmitting bag; Must calculate this check word and be inserted in this territory and go, when receiving bag, this check word must be tested before handling this bag; Group Address is (multicast ip address).
The protocol format of IGMP V2 version is as shown in Figure 2; Comprise: Type (type) has the relevant alternately of 3 kinds of IGMP message and main frame and router, wherein; 0x11 line-up of delegates relational query; The subtype of two member relation inquiries is arranged, and one is general inquiry, and whether be used for understanding a group has the member in adjacent network; One is group-specific query, is used for understanding in the specific group of adjacent network whether the member is arranged, and these two message are distinguished by group address; 0x16 represents the report of version 2 member relation; Group is left in the 0x17 representative.For compatible with IGMP v1, also have other additional News Category a: 0x12 to represent version 1 member report, the member relation report in the document refers to report in fact, when not defining version number, then is applicable to two versions simultaneously.
Can find out that from the form of top agreement with respect to IGMP v2 version, IGMP v3 has done very big change, and is as shown in Figure 3.V2 member's report message once can only be reported a multicast address.And member's report message of V3 version; Once can report a plurality of members; By Number of Group Records territory mandatory member's number, and each member not only includes only multicast IP address by Group Record domain representation; Can also comprise a lot of and outer information, the form of group record is as shown in Figure 4.
Utilize the IGMP agreement to realize that the system configuration of multicast service is as shown in Figure 5, comprising: terminal equipment 10, modulator-demodulator 20, access device 30, multicast source network 40 and authorization server 50.When terminal equipment 10 needs to add a multicast group, during the promptly common channel of saying, send IGMP Report messages to access device 30 through modulator-demodulator 20; After access device 30 is received IGMP Report message; This terminal equipment 10 is added in its multicast forward table; Send the IGMPReport message to multicast source network 40 then; Be incorporated into access device 30 to multicast data flow, access device 30 is transmitted to multicast data flow on the circuit at terminal equipment 10 places more then.Every at a distance from certain period; Access device 30 sends IGMP Query inquiry terminal equipment 10 and whether is also receiving this multicast data flow; If terminal equipment 10 need continue to remain on this multicast group; Must respond an IGMP Report message, also have such process between multicast source network 40 and the access device 30 simultaneously, to safeguard the forwarding relation of multicast data flow.
Process from above-mentioned multi-cast terminal equipment on-demand multicasting group; Multi-cast terminal equipment switching channels can send two IGMP messages; One is the leave message of current channel, and then sends a terminal equipment and wants to watch joining message of channel, simultaneously terminal equipment is added the authority of certain program; Can control at access device, also can on authorization server, provide.
But the program that operator provides is high-quality program a bit; Program as HDTV (high definition data TV) type; The bandwidth of these programs is generally than higher, when such program of terminal equipment program request, if terminal equipment has been watched the low program of other bandwidth; Then terminal equipment need withdraw from the program of watching, then could the high-quality program of program request.How terminal equipment is experienced an operating process, caused the terminal equipment dislike.In some cases, even program bandwidth is the same, terminal equipment is also hoped as long as program request type program just can guarantee successfully to watch that terminal equipment can tolerate that also other online program rolls off the production line certainly, and it is irrealizable using the such technology of multicast CAC.
In case above-mentioned terminal equipment is hoped program request and just can be watched; Sometimes operator is in order to provide the satisfaction of some program provider; Program provider hopes to improve audience ratings in other words; Require operator that higher business service grade is provided, therefore, proposed group broadcasting program is carried out the requirement of hierarchical processing.
In the access device priority different to program distribution; Different according to priority then; The preferential forwarding multicasting terminal equipment of the high program stream of priority, thereby the program of realizing high priority is watched that the program of low priority is watched by terminal equipment is low-quality by terminal equipment is high-quality.This technical scheme is to realize the preferential forwarding of program stream data through the priority that changes program stream, and the program stream that priority is low when bandwidth is not enough is preferentially passed through with the message that guarantees high priority by random drop.
In addition, the rank of present priority has only several, divides 8 grades such as 802.1p, and also that's about the size of it for other priority approach, wants to realize that more rank is impossible, and this is subject to the relevant agreement of priority.Secondly; For the program of equal priority, then can not realize the high-quality experience purpose of terminal equipment, because priority is the same; Then message has been transmitted just difference not; But the terminal equipment bandwidth still is so much, and a plurality of program datas of terminal equipment program request are still by abandoning at random, thereby it is relatively poor to cause terminal equipment to experience.
Summary of the invention
The problem that the present invention will solve provides a kind ofly carries out the method and the access device of grading control to group broadcasting program, to solve the defective that can't carry out effective grading control in the prior art to group broadcasting program.
In order to realize above purpose, the invention provides and a kind of group broadcasting program is carried out the method for grading control, may further comprise the steps:
A, terminal equipment send the group broadcasting program request message to access device;
B, said access device obtain the program grade parameter according to said group broadcasting program request message inquiry; Said program grade parameter comprises multicast group IP address and group broadcasting program hierarchical priority information; Said group broadcasting program hierarchical priority information specifically is used for business service grade at a plurality of group broadcasting programs when identical, identifies the priority of said group broadcasting program in identical said business service grade;
C, said access device transmit the group broadcasting program data of this generation according to said program grade parameter generation group broadcasting program data and according to the control strategy that is provided with in advance.
Also comprise between steps A and the B:
D, said access device carry out authentication to said terminal equipment, if step e is then changeed in the authentication success; E, carry out multicast bandwidth and connect to allow control.
Said program grade parameter also comprises: multicast source IP address, group broadcasting program title, group broadcasting program priority, group broadcasting program VLAN, send the port information of group broadcasting program to upstream router.
Said control strategy comprises: what the group broadcasting program hierarchical priority was low preferentially rolls off the production line; What the group broadcasting program hierarchical priority was high preferentially rolls off the production line; When the group broadcasting program hierarchical priority is higher than setting threshold, the maximum online program number simultaneously of terminal equipment; The group broadcasting program hierarchical priority is lower than setting threshold, the maximum online program number simultaneously of terminal equipment.
Said control strategy is based on the control strategy of system or based on the control strategy of terminal equipment.
The present invention also provides a kind of access device that group broadcasting program is carried out grading control; Comprise: terminal equipment IGMP message process unit, router add leave message unit, group broadcasting program administrative unit; Be used to be provided with the managing programm value parameter; Said program grade parameter comprises multicast group IP address and group broadcasting program hierarchical priority information; Said group broadcasting program hierarchical priority information specifically is used for business service grade at a plurality of group broadcasting programs when identical, identifies the priority of said group broadcasting program in identical said business service grade; And generate the group broadcasting program data and transmit the group broadcasting program data of this generation according to the control strategy that is provided with in advance according to said program grade parameter.
Also comprise: terminal equipment identification/authentication, channel state administrative unit are used for the inspection of group broadcasting program forwarding of data and terminal device validity, and confirm the control strategy that channel is transmitted according to the hierarchical priority of the group broadcasting program of terminal equipment program request.
Said control strategy be comprise the group broadcasting program hierarchical priority low preferentially roll off the production line, the group broadcasting program hierarchical priority is high preferentially reaches the standard grade, just is provided with according to the group broadcasting program hierarchical priority the maximum online program number simultaneously of terminal equipment.
Compared with prior art, the present invention has the following advantages:
Increased new argument in the present invention's group broadcasting program value parameter in the prior art, i.e. group broadcasting program hierarchical priority information is with the enterprising step refining on existing classification basis.Make the operator can be according to some group broadcasting program of group broadcasting program grading control terminal device prioritizes program request; Operator can provide differentiated service according to program provider, to enhance competitiveness.
In addition; The present invention carries out classification through the program of high low bandwidth; The program of realizing the terminal equipment program request can only program request during for high bandwidth one, and the program of low bandwidth is can program request a plurality of, and the terminal equipment bandwidth can the most effectively be used like this; Thereby realize the optimum experience of terminal equipment request program, and then the number restriction of the multicast program request simultaneously that limits when evading multicast bandwidth CAC.
Further, the present invention carries out classification through programme variety, thereby realizes the high program of audience ratings by the terminal device prioritizes program request, to improve running income.
The protocol format figure of Fig. 1 prior art IGMPV1 version;
The protocol format figure of Fig. 2 prior art IGMPV2 version;
Description of drawings
The protocol format figure of Fig. 3 prior art IGMPV3 version;
Fig. 4 is a group record format chart among Fig. 3;
Fig. 5 utilizes the IGMP agreement to realize the system construction drawing of multicast service in the prior art;
Fig. 6 is a kind of method flow diagram that group broadcasting program is carried out grading control of the present invention;
To be that the present invention is a kind of carry out grading control access device structure chart to group broadcasting program to Fig. 7.
The present invention is a kind of, and that group broadcasting program is carried out the method flow of grading control is as shown in Figure 6, may further comprise the steps:
Step s601, terminal equipment sends the group broadcasting program request message to access device.
Embodiment
Step s602, said access device obtains the program grade parameter according to said group broadcasting program request message inquiry.This group broadcasting program value parameter has increased new argument in the prior art, i.e. group broadcasting program hierarchical priority information is with the enterprising step refining on existing classification basis.Also comprise in this parameter: multicast group IP address and/or multicast source IP address and/or group broadcasting program title and/or group broadcasting program priority and/or group broadcasting program VLAN and/or transmission group broadcasting program are to the port information of upstream router.Wherein hierarchical priority is confirmed by program bandwidth and/or program provider and/or programme variety etc.
Step s603, said access device generates the group broadcasting program data according to said program grade parameter.And transmit the group broadcasting program data according to the control strategy that is provided with in advance.Control strategy is according to the hierarchical priority and the hierarchical form setting of group broadcasting program data.Hierarchical form is the form of expression of group broadcasting program classification, and such as when using numeral, the rank of program A is 1, the program of program B is 2 etc.; When using character: the rank of program A is the AAA level, and the rank of program B is an AAAA level etc.; When using character and combination of numbers, the rank of program A X.1, X.2 the rank of program B for waiting.Hierarchical priority is the priority that forms after the group broadcasting program classification; The ranked data of for example confirming according to the form of classification sorts; Sort by can be according to the numerical value increasing or decreasing of numeral; Also can select character string to sort, also can sort etc. by the arrangement that character string forms certain format by character sequence.
When terminal equipment on-demand multicasting program, can carry out authentication according to the authority of terminal equipment earlier, the judgement terminal equipment is wanted the legitimacy of request program.When authentication through after carry out multicast bandwidth CAC again, according to the group broadcasting program classification of program request, can select following control strategy then: what the group broadcasting program hierarchical priority was low preferentially rolls off the production line; What the group broadcasting program hierarchical priority was high preferentially rolls off the production line; The group broadcasting program hierarchical priority is higher than a threshold value (depending on hierarchical priority and classification foundation), and the maximum online program number simultaneously of terminal equipment is a particular value, as 1; The group broadcasting program hierarchical priority is lower than a threshold value (depending on hierarchical priority and classification foundation), and the maximum online program number simultaneously of terminal equipment is a particular value, as 3.
Above-mentioned control strategy can be a lot, can come into force based on system, also can come into force based on multi-cast terminal equipment, and perhaps some control strategy comes into force based on system, and the other control strategy is based on the terminal equipment port simultaneously; When a plurality of control strategies came into force, its order that comes into force can be chosen as based on the having precedence over based on the terminal equipment port of system, also can be chosen as to have precedence over based on system based on port.
Control strategy for example is set is higher than 10 for the group broadcasting program hierarchical priority; Wherein, Classification is according to being multicast bandwidth, and hierarchical priority is a numerical value, and the maximum online program number simultaneously of terminal equipment is 1; And this control strategy is based on system, i.e. the program request of all terminal equipments all is same processing as long as satisfy.When terminal equipment needs the group broadcasting program hierarchical priority of program request is 15; Other online group broadcasting program hierarchical priority is all less than 15; After then receiving the program request message (IGMP report message) of terminal equipment; Earlier roll off the production line the online group broadcasting program of other terminal equipment, the channel of order request is set to normal forwarding then.In addition, above-mentioned control strategy all is when terminal equipment is reached the standard grade, to control.
Generate the instantiation that a group broadcasting program is classified as the group broadcasting program of aaa, configuration order is following: program add group-ip 228.1.1.1source-ip 1.1.1.1 name phenix-tv priority 5 vlan120bind-port 8 grade aaa; Wherein, group-ip, source-ip, name, priority, vlan, bind-port and grade represent to dispose the parameter of group broadcasting program, thereafter parameter values and then; The implication of this order is that multicast group IP address of increase is 228.1.1.1, and the multicast source IP address is 1.1.1.1, and the group broadcasting program name is called phenix-tv; Multicast priority is 5; Group broadcasting program vlan is 120, and the up going port of binding is 8, and group broadcasting program is classified as the program of aaa.
The present invention also provides a kind of group broadcasting program is carried out the access device 300 of grading control, as shown in Figure 7 comprising: router adds leave message unit 310, terminal equipment identification/authentication, channel state administrative unit 320, terminal equipment IGMP message process unit 330 and group broadcasting program administrative unit 340.Wherein, group broadcasting program administrative unit 340 is used to be provided with managing multicast program grade form and hierarchical priority, and generates the group broadcasting program data according to said hierarchical form and hierarchical priority; Terminal equipment identification/authentication, channel state administrative unit 320 are used for the forwarding of group broadcasting program stream and the inspection of terminal device validity, and confirm the control strategy that channel is transmitted according to the hierarchical priority of the group broadcasting program of terminal equipment program request; User IGMP message process unit 330 is used to receive message; Router adds leave message unit 310, is used for the group broadcasting program data are injected access device.Control strategy be comprise the group broadcasting program hierarchical priority low preferentially roll off the production line, the group broadcasting program hierarchical priority is high preferentially reaches the standard grade, just is provided with according to the group broadcasting program hierarchical priority the maximum online program number simultaneously of terminal equipment.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (8)
1. one kind is carried out the method for grading control to group broadcasting program, it is characterized in that, may further comprise the steps:
A, access device receiving terminal apparatus send the group broadcasting program request message;
B, said access device obtain the program grade parameter according to said group broadcasting program request message inquiry; Said program grade parameter comprises multicast group IP address and group broadcasting program hierarchical priority information; Said group broadcasting program hierarchical priority information specifically is used for business service grade at a plurality of group broadcasting programs when identical, identifies the priority of said group broadcasting program in identical said business service grade;
C, said access device transmit the group broadcasting program data of this generation according to said program grade parameter generation group broadcasting program data and according to the control strategy that is provided with in advance.
2. according to claim 1 group broadcasting program is carried out the method for grading control, it is characterized in that, also comprise between steps A and the B:
D, said access device carry out authentication to said terminal equipment, if step e is then changeed in the authentication success;
E, carry out multicast bandwidth and connect to allow control.
3. according to claim 1 group broadcasting program is carried out the method for grading control; It is characterized in that said program grade parameter also comprises: multicast source IP address, group broadcasting program title, group broadcasting program priority, group broadcasting program VLAN, send the port information of group broadcasting program to upstream router.
4. according to claim 1 group broadcasting program is carried out the method for grading control, it is characterized in that said control strategy comprises: what the group broadcasting program hierarchical priority was low preferentially rolls off the production line; What the group broadcasting program hierarchical priority was high preferentially rolls off the production line; When the group broadcasting program hierarchical priority is higher than setting threshold, the maximum online program number simultaneously of terminal equipment; The group broadcasting program hierarchical priority is lower than setting threshold, the maximum online program number simultaneously of terminal equipment.
5. said group broadcasting program is carried out the method for grading control like claim 4 or 1, it is characterized in that, said control strategy is based on the control strategy of system or based on the control strategy of terminal equipment.
6. access device that group broadcasting program is carried out grading control; Comprise: terminal equipment IGMP message process unit, router add the leave message unit; It is characterized in that; Also comprise the group broadcasting program administrative unit, be used to be provided with the managing programm value parameter, said program grade parameter comprises multicast group IP address and group broadcasting program hierarchical priority information; Said group broadcasting program hierarchical priority information specifically is used for business service grade at a plurality of group broadcasting programs when identical, identifies the priority of said group broadcasting program in identical said business service grade; And generate the group broadcasting program data and transmit the group broadcasting program data of this generation according to the control strategy that is provided with in advance according to said program grade parameter.
7. like the said access device that group broadcasting program is carried out grading control of claim 6; It is characterized in that; Also comprise: terminal equipment identification/authentication, channel state administrative unit; Be used for the inspection of group broadcasting program forwarding of data and terminal device validity, and confirm the control strategy that channel is transmitted according to the hierarchical priority of the group broadcasting program of terminal equipment program request.
8. like the said access device that group broadcasting program is carried out grading control of claim 7; It is characterized in that, said control strategy be comprise the group broadcasting program hierarchical priority low preferentially roll off the production line, the group broadcasting program hierarchical priority is high preferentially reaches the standard grade, just is provided with according to the group broadcasting program hierarchical priority the maximum online program number simultaneously of terminal equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810189665A CN101521626B (en) | 2006-07-24 | 2006-07-24 | Method for stepping control of multicast programs and access equipment |
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| CN200810189665A CN101521626B (en) | 2006-07-24 | 2006-07-24 | Method for stepping control of multicast programs and access equipment |
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| CNB2006101036010A Division CN100561979C (en) | 2006-06-09 | 2006-07-24 | A kind of method and access device that group broadcasting program is carried out grading control |
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| CN101521626B true CN101521626B (en) | 2012-08-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2611067A1 (en) | 2011-12-30 | 2013-07-03 | Thomson Licensing | System and method for combining multiple communication links |
| CN102821311B (en) * | 2012-05-30 | 2015-07-15 | 浙江宇视科技有限公司 | Video data packet priority setting method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6578076B1 (en) * | 1999-10-18 | 2003-06-10 | Intel Corporation | Policy-based network management system using dynamic policy generation |
| CN1464751A (en) * | 2002-06-28 | 2003-12-31 | 国际商业机器公司 | Apparatus and method for equivalent VOD system |
| CN1604642A (en) * | 2004-11-04 | 2005-04-06 | 复旦大学 | A method for arranging information release priority in broadcast video program system |
| US6963573B1 (en) * | 2000-09-13 | 2005-11-08 | Nortel Networks Limited | System, device, and method for receiver access control in a multicast communication system |
| CN1783831A (en) * | 2004-12-02 | 2006-06-07 | 华为技术有限公司 | Method for realizing video multicast service medium frequency switch |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6578076B1 (en) * | 1999-10-18 | 2003-06-10 | Intel Corporation | Policy-based network management system using dynamic policy generation |
| US6963573B1 (en) * | 2000-09-13 | 2005-11-08 | Nortel Networks Limited | System, device, and method for receiver access control in a multicast communication system |
| CN1464751A (en) * | 2002-06-28 | 2003-12-31 | 国际商业机器公司 | Apparatus and method for equivalent VOD system |
| CN1604642A (en) * | 2004-11-04 | 2005-04-06 | 复旦大学 | A method for arranging information release priority in broadcast video program system |
| CN1783831A (en) * | 2004-12-02 | 2006-06-07 | 华为技术有限公司 | Method for realizing video multicast service medium frequency switch |
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