CN101155127A - Method for establishing multicast data channel in radio communication system - Google Patents
Method for establishing multicast data channel in radio communication system Download PDFInfo
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- CN101155127A CN101155127A CNA2006101406785A CN200610140678A CN101155127A CN 101155127 A CN101155127 A CN 101155127A CN A2006101406785 A CNA2006101406785 A CN A2006101406785A CN 200610140678 A CN200610140678 A CN 200610140678A CN 101155127 A CN101155127 A CN 101155127A
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Abstract
The invention provides a system of multicast data channel in wireless communication system, the granularity of the said data channel aims at each multicast service area to establish the multicast data channel, or aims at each special multicast service stream to establish the multicast data channel, wherein the multicast data service is abbreviated as MBS. The said system comprises MBS server, accessing gateway, base station. The said MBS server is used to allocate and authorize MBS service, send request information for establishing data channel, distribute MBS service flow ID SFID and MBS connection ID CID. The said accessing gateway is used to transmit the information between the MBS server and base station, distribute MBS data channel ID and establish data channel with base station. The said base station is used to establish data channel with the said accessing gateway. Compared with the existing technique, the granularity based on MBS Zone or multicast service flow establishes a multicast data channel to effectively save the link bandwidth resource.
Description
Technical field
The present invention relates to the WiMAX wireless communication system, realize that particularly MBS sets up the system of multicast data channel in network.
Background technology
MBS (Multicast and broadcast services, multicast/broadcast business) is the critical function of a kind of wireless communication system of IEEE802.16 protocol definition.MBS divides single base station to insert and two kinds of situations are inserted in many base stations, and the former is meant the multicast/broadcast business in a base station; The latter is meant that all can receive MAC layer (the Medium Access Control layer) data of a plurality of base stations synchronous transmission on descending multicast connects in the terminal that is registered to multicast/broadcast business on the network-level.The MBS that this paper relates to is exactly the multicast/broadcast business that this many base stations are inserted.Fig. 1 has shown the schematic diagram of terminal reception MBS data in 802.16 wireless communication systems, and among the figure, 100 are designated as wireless communication system, 101-103 is the base station, 104-105 is for using the portable terminal of MBS, and 106 represent the mobile route of portable terminals, and 107 is the MBS content server.
802.16 the MAC layer of agreement has defined based on Business Stream notion that connects and strict QoS (Quality of Service, service quality) and has guaranteed mechanism.The MBS business datum also is to transmit on specific multicast connects, and all the Business Stream with specific is relevant in each multicast connection, and Business Stream all has specific qos parameter etc.Terminal or network side are set up the MBS Business Stream by initiating DSA (Dynamic Service Add) process, and the multicast/broadcast data that is associated can obtain the QoS that Business Stream provides.Characteristics according to MBS, the a plurality of base stations that belong to same MBS Zone have identical CID (Connection ID) and SA (Security Attributes), be used for identical data on the specific MBS Business Stream of synchronous transmission, therefore need unified processing unit MBS server (MBS Server) to finish the management of MBS Business Stream and the processing of multicast/broadcast data, comprise segmentation, scheduling etc.
For this IP-based wireless access system, in order to guarantee high QoS service, reduce delay that the network standard that WiMAX Forum NWG working group formulates has proposed the notion in tunnel.In the WiMAX broadband radio access network, have two functional entity: BS (base station) and ASN-GW (IAD), between these two functional entitys, carry out the transmission of medium face data by the R6/R4 tunnel.The data of this data channel transmission have two types: a kind of IP/Ethernet of being bag, a kind of is MAC SDU packet.The management data passage is realized by DPF (datapath function body) in the NWG standard simultaneously.The DPF functive can be positioned at ASN-GW, also can be positioned at BS.This functive has four types: Anchor DPF (major control data tunnelling function body), be positioned at ASN-GW, and receive the IP bag of network, issue Serving DPF, and initiate the foundation of data channel, functions such as release; Serving DPF (service data tunnelling function body) is positioned at BS, is responsible for setting up data channel with Anchor DPF, the packet between the Internet and the MS (terminal); Target DPF (target data tunnelling function body) is positioned at BS, new Serving DPF after switching is finished; Relay DPF (relay data tunnelling function body) is positioned at ASN-GW, the signaling of packet between assistance transmission Anchor DPF and the Serving DPF or data channel management.As shown in Figure 2.
Needs according to networking, for a plurality of BS under the MBS Zone zone, an AnchorASN-GW (Anchor DPF place) can directly link to each other with several BS wherein, also can link to each other with other BS in this MBS Zone by other Relay ASN-GW (Relay DPF place).See shown in Figure 3.
The NWG standard has defined the granularity that data channel is set up at the foundation of unicast service data channel, and mainly contain three kinds of tunnel granularities: each BS sets up a tunnel; Each terminal is set up a tunnel; Each Business Stream of each terminal is set up a tunnel.But it is still blank to set up size definition for the data channel of MBS business.The MBS business has the characteristics of himself, all BS under the MBS Zone need the identical data of synchronous transmission, each BS uses identical CID and SA on the MBS Business Stream, its dispatching concentration is handled at MBS Server, and each BS can belong to a plurality of MBS Zone, set up the multi-case data passage if therefore utilize existing unicast data passage to set up granularity, realizing can more complicated.For example for the tunnel granularity of each BS, under the situation of clean culture, need realize being categorized into the corresponding different clean cultures of eating dishes without rice or wine according to grader at BS connects, if multicast service also is multicast message of each BS granularity, then the data for different MBS Zone need be categorized into the upward processing of multicast connection of eating dishes without rice or wine different; Tunnel granularity for each MS, under the multicast service situation, eating dishes without rice or wine that multicast connects not is at certain MS's, a plurality of MS share a multicast fully and connect, therefore in the R6 tunnel, set up a tunnel and transmit multi-case data at each MS granularity, the data that transmit all are the same contents, cause the bandwidth waste in R6 tunnel like this; Setting up multicast message for each Business Stream granularity of each MS also is so, will cause the bandwidth waste in R6 tunnel.
Summary of the invention
Technical problem to be solved by this invention provides the system that sets up multicast data channel in a kind of wireless communication system, realizes the foundation of multicast data channel, satisfies the needs of multicast service, effectively the conserve bandwidth resource.
In order to solve the problems of the technologies described above, the invention provides the system that sets up multicast data channel in a kind of wireless communication system, the granularity that described data channel is set up is at setting up multicast data channel in each multicast service zone, perhaps set up multicast data channel at every specific multicast service stream, the multicast data service is hereinafter to be referred as MBS, described system comprises the MBS server that connects successively, IAD, base station, described MBS server are used for configuration and authorize the MBS business, send data channel and set up solicited message, distribute MBS traffic stream identifier SFID and MBS connection identifiers CID; Described IAD be used between MBS server and the base station forwards, distribute MBS data channel sign and set up data channel with the base station; Described base station is used for setting up data channel with described IAD.
Further, said system also can have following characteristics: described IAD is used in the MBS zone all base stations and transmits MBS data in server passages and set up request message, described data channel is set up and is comprised MBS area identification MZID, MBS content provider server ID, SFID and CID in the solicited message, distribute MBS data channel sign to be carried in the message simultaneously, be used for setting up response message to the data channel of the described base station of MBS server forwards.
Further, said system also can have following characteristics: described IAD also is used in the MBS zone all base stations to be transmitted MBS data in server passages and sets up acknowledge message, described data channel set up comprise in the acknowledge message MZID with and the MBS data channel sign of distributing.
Further, said system also can have following characteristics: the granularity of setting up when data channel is when setting up multicast data channel at each multicast service zone, multicast data channel of MZID unique identification; The granularity of setting up when data channel is when setting up multicast data channel at every specific multicast service stream, multicast data channel of MZID and SFID unique identification.
Further, said system also can have following characteristics: described SFID and described CID are that share all base stations in the same MBS zone, eat dishes without rice or wine to transmit the use identical SFID and the CID of each base station.
Further, said system also can have following characteristics: described IAD comprises relaying IAD and master control IAD.
Further, said system also can have following characteristics: the granularity of setting up when data channel is when setting up multicast data channel at every specific multicast service stream, for each Business Stream is set up a multicast data channel.
Technology of the present invention is compared with prior art, for the multicast service of WiMAX provides the system that effectively sets up multicast data channel, granularity based on MBS Zone or multicast service stream is set up a multicast data channel between wireless access gateway and base station, can effectively save the R6 link bandwidth resource, and can map directly to the multicast of eating dishes without rice or wine and connect, not need to realize that classification waits sophisticated functions.
Description of drawings
Fig. 1 is the schematic diagram that terminal receives the MBS data in the wireless communication system;
Fig. 2 is a R6 data channel schematic diagram involved in the present invention;
Fig. 3 is the data channel involved in the present invention and the graph of a relation of interior each entity of WiMAX Access Network;
Fig. 4 is the data channel granularity schematic diagram of present embodiment;
Fig. 5 is a flow chart of setting up the multi-case data passage in the present embodiment based on MBS Zone or multicast service stream granularity.
Embodiment
The present invention is directed to the MBS business features, proposed the tunnel granularity in two kinds of multicast tunnels, a kind of is to set up a multicast tunnel at each MBS Zone at R6/R4; Another kind is to set up a multicast tunnel at every specific multicast service stream (every multicast service stream is represented a kind of multicast service or business channels of specific QoS, as different broadcast TV channel etc.) at R6/R4.Under such BS all add this MBS Zone and have set up shared this multicast tunnel of MS of MBS Business Stream, and the data that the R6 tunnel transmits have only portion, do not have bandwidth waste.Because the scheduling of MBS business is to concentrate on MBS Server to dispatch at each multicast service stream under each MBS Zone, therefore data are sent to BS by the R6 tunnel based on MBS Zone or multicast service stream, can correspond to the multicast of eating dishes without rice or wine easily and connect.Multicast tunnel granularity is seen example 4 and 5 among Fig. 4.
Set up the system of multicast data channel in the wireless communication system, comprise the MBS server, IAD, the base station that connect successively.
Described MBS server is used for configuration and authorizes MBS business, transmission data channel to set up solicited message, distribute MBS traffic stream identifier SFID and MBS connection identifiers CID;
Described IAD, be used between MBS server and the base station forwards, distribute MBS data channel sign and set up data channel with the base station.IAD is used in the MBS zone all base stations and transmits MBS data in server passages and set up request message, and be used for setting up response message to the data channel of the described base station of MBS server forwards, also be used in the MBS zone all base stations and transmit MBS data in server passages and set up acknowledge message;
Described base station is used for setting up data channel with described IAD.
Idiographic flow is participated in following embodiment.
Embodiment one:
As shown in Figure 5, description is the flow process of setting up the multi-case data passage in the WiMAX BWA based on MBS Zone or multicast service stream.The flow process of data channel is set up in the present embodiment introduction during based on MBS Zone granularity.Set up in the process at this, MBS Server needs to initiate a kind of multicast service passage when setting up in the multicast service application of receiving terminal or Server oneself decision, MBS Server sets up request message to ASN-GW or BS transmission tunnel that the MBS of this multicast service Zone is had jurisdiction over, simultaneously by carrying this MZID (MBS Zone ID), MBS Content IDs (MBS content provider server ID), SFID (MBS traffic stream identifier) and CID (MBS connection identifier), only need be between each ASN GW and each BS of subordinate for this MBS Zone set up a multi-case data passage, multicast data channel of the unique sign of MZID.When the back has terminal to apply to add the same multicast service of this MBS Zone again, then can directly use existing multicast data channel, only need authorize and registration get final product, not need to set up again data channel at MBS server.All withdraw from the multicast service of this MBS Zone when all terminals after, MBS server can determine whether delete this multicast data channel.
At first support the WiMAX network of MBS business that MBS Zone of each multicast service that provides configuration, ASN-GW that each MBS Zone configuration is relevant and the corresponding relation of BS and Relay ASN-GW need be provided on MBS Server.When a multicast terminal request multicast service, network is found to have set up the R6 multicast data channel for the MBS Zone of this multicast service, then authorize, and the corresponding multicast service stream ID (SFID that will distribute, ServiceFlow ID) and multicast connection ID (CID) etc. send to terminal, so that terminal adds this multicast service group, this flow process is not included in the flow process of present embodiment.If network finds also not have to set up for the MBS Zone under this multicast service the R6 data channel of multicast, and after determining to set up multicast data channel, begin this flow process.
Network side or terminal initiate to set up a kind of multicast service, this multicast service is configured and authorizes at MBSServer, the multicast data channel whether MBS Server basis has had MBS Zone correspondence determines whether to set up multicast data channel, set up if desired, it is as follows then specifically to set up flow process:
SFID and CID are that all BS share in the same MBS Zone, eat dishes without rice or wine to transmit use identical SFID and the CID of each BS.
Described data channel is set up and is gone back portability BSID (Base Station Identification) in the request message.
If BS is connected with Anchor ASN-GW (master control IAD) by Relay ASN-GW (relaying IAD), then continues that by Relay ASN-GW the data channel of this multicast is set up request message and send to BS or next Relay ASN-GW.
Described data channel is set up and is gone back portability BSID in the response message.
Set up request message if the BS under the Relay ASN-GW receives this data channel, then send data channel foundation and respond Relay ASN-GW, send data channel foundation by Relay ASN-GW again and respond Anchor ASN-GW.
Described data channel is set up and is gone back portability BSID in the acknowledge message.
If BS is connected with Anchor ASN-GW by Relay ASN-GW, then continues that by RelayASN-GW the data channel of this multicast is set up acknowledge message and send to BS or next Relay ASN-GW.
So far, multicast data channel is set up and is all finished, and system begins follow-up flow process according to standard.
Embodiment two:
Referring to Fig. 5, present embodiment is mainly described scene and the method for setting up the multi-case data passage based on the multicast service stream granularity.A kind of specific multicast service of multicast service stream general proxy (specific QoS attribute etc. is arranged), simultaneously also may set up many multicast service stream for a kind of multicast service, such as video broadcasting, then Voice ﹠ Video is two multicast service stream with different QoS attribute.In addition, for a plurality of MBS business that attributes such as identical QoS are arranged (MBS Content IDs), 802.16e eats dishes without rice or wine to support a multicast to connect binding a plurality of logic channels (Logical Channel ID) down at present, LogicalChannel ID can corresponding MBS Content ID, therefore also can only set up a multicast service stream for this a plurality of MBS business.
Set up the multi-case data passage based on the multicast service stream granularity and follow that to set up the flow process of multi-case data passage based on MBS Zone granularity just the same, different part is exactly after MBS server receives the multicast service request, determine to set up still many multicast service stream according to multicast service attribute and type, under affiliated MBS Zone, check the multicast service stream that whether has this multicast service then, if exist then authorize, and corresponding multicast service stream ID (SFID) that will distribute and multicast connection ID (CID) etc. send to terminal, so that terminal adds this multicast service stream.If there is no, then initiate the foundation of multicast data channel, it is the same with the flow process of embodiment one to set up flow process.This moment is by { the also unique expression of CID that multi-case data passage of the unique expression of MZID+SFID} (promptly also carrying SFID in step 4 and step 5), multicast the connect multicast connection of eating dishes without rice or wine.If will set up many multicast service stream, then need to set up a multicast data channel for each Business Stream.
The above only is preferred embodiment of the present invention, and purpose is to make those skilled in the art can make or use the present invention.The various modifications of these embodiment are conspicuous for a person skilled in the art, and Ding Yi rule can be applied among other embodiment and not use creativity here.Therefore, the embodiment that the present invention is not limited to illustrate here, and be applicable to and meet here the principle the most wide in range scope consistent with novel feature that discloses.
Claims (7)
1. set up the system of multicast data channel in the wireless communication system, the granularity that described data channel is set up is at setting up multicast data channel in each multicast service zone, perhaps set up multicast data channel at every specific multicast service stream, the multicast data service is hereinafter to be referred as MBS, described system comprises MBS server, IAD, the base station that connects successively, and described MBS server is used for configuration and authorizes MBS business, transmission data channel to set up solicited message, distribute MBS traffic stream identifier SFID and MBS connection identifiers CID; Described IAD be used between MBS server and the base station forwards, distribute MBS data channel sign and set up data channel with the base station; Described base station is used for setting up data channel with described IAD.
2. the system as claimed in claim 1, it is characterized in that, described IAD is used in the MBS zone all base stations and transmits MBS data in server passages and set up request message, described data channel is set up and is comprised MBS area identification MZID, MBS content provider server ID, SFID and CID in the solicited message, distribute MBS data channel sign to be carried in the message simultaneously, be used for setting up response message to the data channel of the described base station of MBS server forwards.
3. the system as claimed in claim 1, it is characterized in that, described IAD also is used in the MBS zone all base stations to be transmitted MBS data in server passages and sets up acknowledge message, described data channel set up comprise in the acknowledge message MZID with and the MBS data channel sign of distributing.
4. the system as claimed in claim 1 is characterized in that, the granularity of setting up when data channel is when setting up multicast data channel at each multicast service zone, multicast data channel of MZID unique identification; The granularity of setting up when data channel is when setting up multicast data channel at every specific multicast service stream, multicast data channel of MZID and SFID unique identification.
5. the system as claimed in claim 1 is characterized in that, described SFID and described CID are that share all base stations in the same MBS zone, eat dishes without rice or wine to transmit the use identical SFID and the CID of each base station.
6. the system as claimed in claim 1 is characterized in that, described IAD comprises relaying IAD and master control IAD.
7. the system as claimed in claim 1 is characterized in that, the granularity of setting up when data channel is when setting up multicast data channel at every specific multicast service stream, for each Business Stream is set up a multicast data channel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101406785A CN101155127A (en) | 2006-09-29 | 2006-09-29 | Method for establishing multicast data channel in radio communication system |
| PCT/CN2006/003746 WO2008037139A1 (en) | 2006-09-29 | 2006-12-30 | A system for establishing the multicast and broadcast data channel in the wireless communication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006101406785A CN101155127A (en) | 2006-09-29 | 2006-09-29 | Method for establishing multicast data channel in radio communication system |
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| CN101155127A true CN101155127A (en) | 2008-04-02 |
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| CNA2006101406785A Withdrawn CN101155127A (en) | 2006-09-29 | 2006-09-29 | Method for establishing multicast data channel in radio communication system |
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| WO (1) | WO2008037139A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827314A (en) * | 2009-12-29 | 2010-09-08 | 中国科学院声学研究所 | Method for realizing L2 layer multicast based on dynamic multicast list |
| CN104135721A (en) * | 2008-06-26 | 2014-11-05 | 汤姆逊许可公司 | Method and device for response and retransmission of multicast data in a wireless local area network |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060011226A (en) * | 2004-07-29 | 2006-02-03 | 엘지전자 주식회사 | Method for supporting handover for multicast and broadcast service in mobile communication system |
| WO2006085732A1 (en) * | 2005-02-14 | 2006-08-17 | Lg Electronics Inc. | Method of controlling data transmission for mbs in broadband wireless access system |
-
2006
- 2006-09-29 CN CNA2006101406785A patent/CN101155127A/en not_active Withdrawn
- 2006-12-30 WO PCT/CN2006/003746 patent/WO2008037139A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104135721A (en) * | 2008-06-26 | 2014-11-05 | 汤姆逊许可公司 | Method and device for response and retransmission of multicast data in a wireless local area network |
| CN104135721B (en) * | 2008-06-26 | 2018-05-08 | 汤姆逊许可公司 | The response of multicast data in wireless local area networks and the method and apparatus retransmitted |
| CN101827314A (en) * | 2009-12-29 | 2010-09-08 | 中国科学院声学研究所 | Method for realizing L2 layer multicast based on dynamic multicast list |
| CN101827314B (en) * | 2009-12-29 | 2012-10-17 | 中国科学院声学研究所 | Method for realizing L2 layer multicast based on dynamic multicast list |
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| Publication number | Publication date |
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| WO2008037139A1 (en) | 2008-04-03 |
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