CN102196599B - Method and base station for enabling terminal to join in multicast group - Google Patents
Method and base station for enabling terminal to join in multicast group Download PDFInfo
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- CN102196599B CN102196599B CN201010120534.XA CN201010120534A CN102196599B CN 102196599 B CN102196599 B CN 102196599B CN 201010120534 A CN201010120534 A CN 201010120534A CN 102196599 B CN102196599 B CN 102196599B
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000011144 upstream manufacturing Methods 0.000 claims description 23
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/185—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with management of multicast group membership
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
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Abstract
The embodiment of the invention provides a method and a base station for enabling a terminal to join in a multicast group. The method comprises the following steps: receiving uplink data sent by the terminal; determining whether the destination IP (internet protocol) address of the uplink data is a multicast group address; and if the destination IP address of the uplink data is determined to be the multicast group address, replacing the terminal to send a joining request of an IGMP (internet group management protocol) to the multicast group corresponding to the multicast group address. According to the embodiment of the invention, terminals which do not support the IGMP can be joined in the multicast group, thereby further enabling the terminals which do not support the IGMP to carry out multicast services.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method and base station that makes terminal add multicast group.
Background technology
For higher message transmission rate and less time delay are provided, reduce the operation cost of operator simultaneously, 3GPP(3rd Generation Partnership Project, third generation partner program) proposed a kind of based on H (e) NB(Home (E-) UTRAN NodeB, family's (evolution) base station) access service.This access service is disposed H (e) NB in places such as family, market or enterprises.User by H (e) the NB access carrier core net time, also allows to be linked in home network or enterprise network by H (e) NB interconnected with other IP devices, is called LIPA (Local IP Access, local IP accesses).
Current terminal can realize by the equipment in H (e) NBYu family or enterprise network interconnected, further, can utilize this interconnected media content sharing that realizes.Main UPnP(Universal Plug and Play, the UPnP of adopting in current home network) realize devices interconnect.UPnP equipment is PnP device, and when equipment connection is in network time, it can announce their address and the equipment of support and type of service etc. automatically, makes client can identify their type, and will begin in a minute and use this equipment.In home network, all interconnected equipment need to be supported common agreement, to realize exchanges data of automatic discovery, minimum user intervention etc.
Generally adopting at present IGMP(Internet Group Management Protocol, Internet Group Management Protocol) agreement realizes UPnP.IGMP is one and is supported in the agreement of carrying out multicast between main frame and router.Detailed process is for when first process of main frame adds a multicast group, and main frame just sends joining request of an IGMP; When process is left a multicast group, main frame does not send IGMP message, after main frame is known no longer included multicast group membership in definite multicast group, just no longer sends response message in the igmp querying of receiving subsequently.As fully visible, realize multicast, main frame and router all need to support IGMP agreement.
In realizing process of the present invention, inventor finds that in prior art, at least there are the following problems: prior art is central for the terminal of not supporting IGMP agreement, terminal itself cannot initiate to join the joining request of IGMP of home network multicast group voluntarily, and this just means for the terminal of not supporting IGMP agreement cannot join home network multicast group.
Summary of the invention
The embodiment of the present invention provides a kind of method and base station that makes terminal add multicast group, makes not support the terminal of IGMP agreement, also can add multicast group, thereby further makes not support the terminal of IGMP agreement to carry out multicast service.
On the one hand, the embodiment of the present invention provides a kind of method that makes terminal add multicast group, and described method comprises: the upstream data that base station receiving terminal sends; Described base station determines whether the object IP address of described upstream data is multicast group address; If described base station determines that the object IP address of described upstream data is multicast group address, replace described terminal to send joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address; The corresponding relation of the IP address of described terminal and the IP address of described base station, when replacing the described terminal multicast group corresponding to described multicast group address to send joining request of Internet Group Management Protocol IGMP, is preserved in described base station; Described base station replaces multicast group described in described terminal maintenance, and simultaneously according to the corresponding relation of the IP address of the IP address of described terminal and described base station, converting downlink multi-case data is given described terminal.
On the other hand, the embodiment of the present invention provides a kind of base station that makes terminal add multicast group, and described base station comprises: receiving element, the upstream data sending for receiving terminal; Multicast group address determining unit, for determining whether the object IP address of described upstream data is multicast group address; Transmitting element joins request, for when described multicast group address confirmation unit determines that the object IP address of described upstream data is multicast group address, replace described terminal to send joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address; Storage unit, be used for, when the described transmitting element that joins request replaces described terminal to send joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address, preserving the corresponding relation of the IP address of described terminal and the IP address of described base station; Multicast unit, for replacing multicast group described in described terminal maintenance, simultaneously according to the corresponding relation of the IP address of the IP address of described terminal and described base station, converting downlink multi-case data is given described terminal.
Technique scheme has following beneficial effect: because adopt, support the base station of IGMP agreement to replace not supporting that the terminal of IGMP agreement sends the technological means joining request of IGMP, so that do not support the terminal of IGMP agreement, also can add multicast group, thereby further make not support the terminal of IGMP agreement to carry out multicast service, the content between realization and other network equipments is shared.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is Local GW (Local Gateway, the local gateway) network architecture schematic diagram of H (e) NB;
Fig. 2 is the NAT(Network Address Translation of H (e) NB, network address translation) configuration diagram;
Fig. 3 is a kind of method flow diagram that makes terminal add multicast group of the embodiment of the present invention;
Fig. 4 is a kind of architecture of base station schematic diagram that makes terminal add multicast group of the embodiment of the present invention;
Fig. 5 is that embodiment of the present invention another kind makes terminal add the architecture of base station schematic diagram of multicast group;
Fig. 6 is embodiment of the present invention multicast cellular construction schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, Local GW network architecture schematic diagram for family's (evolution) base station (H (e) NB), in this framework, H (e) NB this locality arranges L-GGSN (Local GGSN, local gateway GPRS Support Node) functional entity, what this functional entity was realized is GGSN(Gateway GPRS Support Node) subfunction, for UE(User Equipment, subscriber equipment) distribute and be linked into LIPA (Local IP Access separately, local IP access) the IP address that the PDN (Packet Data Network, Packet Data Network) of business connects; Set up direct channels under base station and L-GW (Local Gateway-local gateway) connection mode etc.
The local L-GGSN functional entity arranging of H (e) NB also can remove, and simultaneously in the local configuration of H (e) NB nat feature, forms the NAT framework of H (e) NB, as shown in Figure 2.In NAT framework, by the local IP operation of H (e) NB route, do not need to distribute independent IP address (with the main distinction of L-GGSN framework), and configure by the strategy of operator, by NAT, grouping is carried out to procuratorial work, to need the IP grouping of H (e) NB local routing, by H (e) NB local routing in home network or enterprise network.This NAT module also possesses the basic function of common NAT, the i.e. inspection of IP address and conversion etc. simultaneously.
Based on the above-mentioned network architecture, terminal can realize interconnected by the equipment in H (e) NBYu family or enterprise network.But if the media content sharing between other equipment in realization and network can be achieved by joining in multicast group.IGMP is one and is supported in the agreement of carrying out multicast between main frame and router.Terminal can utilize IGMP agreement to join in the multicast group of family or enterprise network, realizes sharing of media content.
The embodiment of the present invention is for the terminal of not supporting IGMP agreement, can consider to utilize H (e) NB that supports IGMP agreement, by H (e) NB replacement terminal, initiated to join the request of multicast group, by H (e) NB, replace terminal to carry out the maintenance of multicast group afterwards, and be terminal retransmitting multi-casting grouped data.What in home network, media content sharing was mainly concerned with is sharing of audio-video frequency content.Terminal can be passed through by Announce or from website RTSP(Real-Time Streaming Protocol, the SDP(Session Description Protocol of Description Procedure Acquisition streaming media service real-time streaming protocol), Session Description Protocol), in the middle of SDP to the IP address of the main frame of business is provided, IP address and the port numbers of Media Stream, the type of Media Stream etc. is described.Terminal obtains after foregoing, checks media server in the middle of SDP, or the address of source of media is multicast address, and then terminal sends upstream data.
As shown in Figure 3, make terminal add the method flow diagram of multicast group for the embodiment of the present invention is a kind of, described method comprises:
301, the upstream data that base station receiving terminal sends;
Above-mentioned base station can be for one of following: Home eNodeB, macro base station.During specific implementation, terminal can by issue (Announce) or from website the SDP of description (Description) the Procedure Acquisition streaming media service by RTSP, in the middle of SDP to the IP address of the main frame of business is provided, IP address and the port numbers of Media Stream, the type of Media Stream etc. is described.After terminal obtains foregoing, check media server in the middle of SDP, or the address of source of media is multicast address, then terminal sends upstream data (audio, video data) and receives to base station.
302, base station determines whether the object IP address of described upstream data is multicast group address;
The function of the igmp proxy of terminal is realized in base station, it can be on existing base station architecture basis, be configured in NAT or the L-GGSN/P-GW(PDN Gateway of base station, grouped data network gateway) on, the object IP address that checks the data that terminal sends, is confirmed whether it is that multicast address is as object IP address.
If 303 base stations determine that the object IP address of described upstream data is multicast group address, replace described terminal to send joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address.
If object IP address is multicast group address, the adition process of an IGMP is initiated to multicast group corresponding to this multicast group address in base station.Base station sends IGMP report to multicast router, TTL=1 is set, IGMP address=multicast group address, object IP address=multicast group address, the IP address of source IP address=terminal, or the IP address of base station.On base station, retain the corresponding relation of the IP address of a terminal and the IP address of base station simultaneously.Other equipment of the multicast group that terminal adds to it send media data.Whether multicast router sends igmp querying message and understands and also have any main frame to include the process that belongs to multicast group.In this process, base station receives after this IGMP Query message, replaces terminal to return to IGMP report.In the igmp querying message that multicast router sends, TTL=1 is set, IGMP group address=0, object IP address=224.0.0.1, source IP address=IP address of router.When descending multi-case data sends to base station, base station checks object IP address.If object IP address is IP address, base station, utilize the IP address of terminal of base station preservation and the corresponding relation of IP address, base station, object IP address is revised as to the corresponding IP address of terminal that belongs to this multicast group, thereby multicast grouping is sent to corresponding terminal.If object IP address is IP address of terminal, this multicast grouped data of the direct forward in base station is given corresponding terminal.
Embodiment of the present invention said method technical scheme supports the base station of IGMP agreement to replace not supporting that the terminal of IGMP agreement sends the technological means joining request of IGMP because adopt, so that do not support the terminal of IGMP agreement, also can add multicast group, thereby further make not support the terminal of IGMP agreement to carry out multicast service, the content between realization and other network equipments is shared.
Corresponding to said method embodiment, the embodiment of the present invention also provides a kind of base that makes terminal add multicast group; As shown in Figure 4, make terminal add the architecture of base station schematic diagram of multicast group for the embodiment of the present invention is a kind of, described base station comprises:
Receiving element 401, the upstream data sending for receiving terminal;
Multicast group address determining unit 402, for determining whether the object IP address of described upstream data is multicast group address;
Transmitting element 403 joins request, for when described multicast group address confirmation unit determines that the object IP address of described upstream data is multicast group address, replace described terminal to send joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address.
Optionally, the transmitting element 403 that joins request can comprise: generation unit 4031 joins request, while being multicast group address for the object IP address when the described upstream data of described multicast group address confirmation unit 402 confirmation, generate joining request of described IGMP, the source IP address in the joining request of described IGMP is IP address or the IP address, base station of described terminal.
Optionally, as shown in Figure 5, for making terminal, embodiment of the present invention another kind adds the architecture of base station schematic diagram of multicast group, described base station not only comprises receiving element 401 shown in above-mentioned Fig. 4, multicast group address determining unit 402 and the transmitting element 403 that joins request, can also comprise: storage unit 404, for when the described terminal of transmitting element 403 replacement that joins request sends joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address, preserve the corresponding relation of IP address and the IP address, described base station of described terminal.Described base station can also comprise: multicast unit 405, for replacing multicast group described in described terminal maintenance, simultaneously according to the corresponding relation of the IP address of described terminal and IP address, described base station, converting downlink multi-case data is given described terminal.As shown in Figure 6, for embodiment of the present invention multicast cellular construction schematic diagram, this multicast unit 405 can comprise: object IP address determining unit 4051, for when receiving described descending multi-case data, determine that the object IP address in described descending multi-case data is IP address or the IP address, described base station of described terminal; First downstream data transmitting element 4052, if determine that for object IP address determining unit the object IP address of described descending multi-case data is IP address, described base station, the IP address of described terminal and the corresponding relation of IP address, described base station that utilize described storage unit to preserve, object IP address in described descending multi-case data is revised as to the IP address of described terminal, thereby described descending multi-case data is sent to described terminal; Or second downstream data transmitting element 4053, if determine for object IP address determining unit the IP address that the object IP address of described descending multi-case data is described terminal, directly sends described descending multi-case data to described terminal.
Above-mentioned base station is one of following: Home eNodeB, macro base station.During specific implementation, terminal can by issue (Announce) or from website the SDP of description (Description) the Procedure Acquisition streaming media service by RTSP, in the middle of SDP to the IP address of the main frame of business is provided, IP address and the port numbers of Media Stream, the type of Media Stream etc. is described.After terminal obtains foregoing, check media server in the middle of SDP, or the address of source of media is multicast address, then terminal sends upstream data (audio, video data) and receives to base station.Base station configuration the first inspection unit 402 and IGMP transmitting element 403, realize the function of the igmp proxy of terminal, it can be on existing base station architecture basis, be configured in NAT or the L-GGSN/P-GW(PDN Gateway of base station, grouped data network gateway) on, the object IP address that checks the data that terminal sends, is confirmed whether it is that multicast address is as object IP address.If object IP address is multicast group address, the adition process of an IGMP is initiated to multicast group corresponding to this multicast group address in base station.Base station sends IGMP report to multicast router, TTL=1 is set, IGMP address=multicast group address, object IP address=multicast group address, the IP address of source IP address=terminal, or the IP address of base station.On base station, retain the corresponding relation of the IP address of a terminal and the IP address of base station simultaneously.Other equipment of the multicast group that terminal adds to it send media data.Whether multicast router sends igmp querying message and understands and also have any main frame to include the process that belongs to multicast group.In this process, base station receives after this IGMP Query message, replaces terminal to return to IGMP report.In the igmp querying message that multicast router sends, TTL=1 is set, IGMP group address=0, object IP address=224.0.0.1, source IP address=IP address of router.When descending multi-case data sends to base station, base station checks object IP address.If object IP address is IP address, base station, utilize the IP address of terminal of base station preservation and the corresponding relation of IP address, base station, object IP address is revised as to the corresponding IP address of terminal that belongs to this multicast group, thereby multicast grouping is sent to corresponding terminal.If object IP address is IP address of terminal, this multicast grouped data of the direct forward in base station is given corresponding terminal.
Embodiment of the present invention said apparatus technical scheme supports the base station of IGMP agreement to replace not supporting that the terminal of IGMP agreement sends the technological means joining request of IGMP because adopt, so that do not support the terminal of IGMP agreement, also can add multicast group, thereby further make not support the terminal of IGMP agreement to carry out multicast service, the content between realization and other network equipments is shared.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method is to come instruction related hardware to complete by program, described program can be stored in computer read/write memory medium, this program is when carrying out, comprise above-mentioned all or part of step, described storage medium, as: ROM/RAM, disk, CD etc.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection range being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. make terminal add a method for multicast group, it is characterized in that, described method comprises:
The upstream data that base station receiving terminal sends;
Described base station determines whether the object IP address of described upstream data is multicast group address;
If described base station determines that the object IP address of described upstream data is multicast group address, replace described terminal to send joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address;
The corresponding relation of the IP address of described terminal and the IP address of described base station, when replacing the described terminal multicast group corresponding to described multicast group address to send joining request of Internet Group Management Protocol IGMP, is preserved in described base station;
Described base station replaces multicast group described in described terminal maintenance, and simultaneously according to the corresponding relation of the IP address of the IP address of described terminal and described base station, converting downlink multi-case data is given described terminal.
2. method as claimed in claim 1, is characterized in that, the source IP address in the joining request of described IGMP is the IP address of described terminal or the IP address of described base station.
3. method as claimed in claim 1, is characterized in that, described base station is according to the corresponding relation of the IP address of the IP address of described terminal and described base station, and converting downlink multi-case data comprises to described terminal:
The object IP address in described descending multi-case data, when receiving described descending multi-case data, is determined in described base station;
If the object IP address in described descending multi-case data is IP address, described base station, described base station utilizes the IP address of described terminal of preservation and the corresponding relation of the IP address of described base station, object IP address in described descending multi-case data is revised as to the IP address of described terminal, thereby described descending multi-case data is sent to described terminal; Or if the IP address that the object IP address in described descending multi-case data is described terminal, described base station directly forwards described descending multi-case data to described terminal.
4. make terminal add a base station for multicast group, it is characterized in that, described base station comprises:
Receiving element, the upstream data sending for receiving terminal;
Multicast group address determining unit, for determining whether the object IP address of described upstream data is multicast group address;
Transmitting element joins request, for when described multicast group address confirmation unit determines that the object IP address of described upstream data is multicast group address, replace described terminal to send joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address;
Storage unit, be used for, when the described transmitting element that joins request replaces described terminal to send joining request of Internet Group Management Protocol IGMP to multicast group corresponding to described multicast group address, preserving the corresponding relation of the IP address of described terminal and the IP address of described base station;
Multicast unit, for replacing multicast group described in described terminal maintenance, simultaneously according to the corresponding relation of the IP address of the IP address of described terminal and described base station, converting downlink multi-case data is given described terminal.
5. base station as claimed in claim 4, is characterized in that, described in the transmitting element that joins request comprise:
Generation unit joins request, while being multicast group address, generate joining request of described IGMP for confirming the object IP address of described upstream data when described multicast group address confirmation unit, the source IP address in the joining request of described IGMP is the IP address of described terminal or the IP address of described base station.
6. base station as claimed in claim 4, is characterized in that, described multicast unit comprises:
Object IP address determining unit, for when receiving described descending multi-case data, determines that the object IP address in described descending multi-case data is the IP address of described terminal or the IP address of described base station;
First downstream data transmitting element, if determine for described object IP address determining unit the IP address that the object IP address of described descending multi-case data is described base station, the IP address of described terminal and the corresponding relation of IP address, described base station that utilize described storage unit to preserve, object IP address in described descending multi-case data is revised as to the IP address of described terminal, thereby described descending multi-case data is sent to described terminal; Or,
Second downstream data transmitting element, if determine for described object IP address determining unit the IP address that the object IP address of described descending multi-case data is described terminal, directly sends described descending multi-case data to described terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010120534.XA CN102196599B (en) | 2010-03-08 | 2010-03-08 | Method and base station for enabling terminal to join in multicast group |
| PCT/CN2011/071596 WO2011110078A1 (en) | 2010-03-08 | 2011-03-08 | Method and base station for enabling terminal to join multicast group |
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| CN201010120534.XA CN102196599B (en) | 2010-03-08 | 2010-03-08 | Method and base station for enabling terminal to join in multicast group |
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| CN102196599B true CN102196599B (en) | 2014-04-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852570A (en) * | 2005-09-05 | 2006-10-25 | 华为技术有限公司 | IP multi-cast system and method based on mobile network |
| CN101622831A (en) * | 2007-01-22 | 2010-01-06 | 英特尔公司 | Proxy IGMP client and method for providing multicast broadcast services in a broadband wireless access network |
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| EP2129037A1 (en) * | 2008-05-29 | 2009-12-02 | THOMSON Licensing | Method and apparatus for multicast group management |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852570A (en) * | 2005-09-05 | 2006-10-25 | 华为技术有限公司 | IP multi-cast system and method based on mobile network |
| CN101622831A (en) * | 2007-01-22 | 2010-01-06 | 英特尔公司 | Proxy IGMP client and method for providing multicast broadcast services in a broadband wireless access network |
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| CN102196599A (en) | 2011-09-21 |
| WO2011110078A1 (en) | 2011-09-15 |
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