CN101370174A - Multimedia broadcast multicast service access method under long-term evolution structure - Google Patents
Multimedia broadcast multicast service access method under long-term evolution structure Download PDFInfo
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- CN101370174A CN101370174A CNA2007101420170A CN200710142017A CN101370174A CN 101370174 A CN101370174 A CN 101370174A CN A2007101420170 A CNA2007101420170 A CN A2007101420170A CN 200710142017 A CN200710142017 A CN 200710142017A CN 101370174 A CN101370174 A CN 101370174A
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Abstract
The invention discloses an MBMS access method under an LTE framework. The method comprises that: a broadcast multicast center sends session initial messages to a multimedia broadcast multicast service gateway; the multimedia broadcast multicast service gateway distributes user interface resources and IP multicast addresses, and transmits the session initial messages to a multimedia broadcast multicast service coordination functional entity; the multimedia broadcast multicast service coordination functional entity carries out coordination decision of radio resources and feeds back the coordination results of the radio resources to the multimedia broadcast multicast service gateway; the multimedia broadcast multicast service gateway sends the session initial messages to an e-Node B; the e-Node B joins into a multicast group and distributes the radio resources. Through the invention, when MCE as a logic entity is attached to the MBMS-GW entity, the two frameworks are fused together better, thereby the frameworks are favorable for network creation requirements of operators and provide MBMS preferably under the condition of meeting the requirements of the LTE/SAE framework.
Description
Technical field
The present invention relates to the communications field, and particularly, (The 3 to relate to 3GPP
RdGeneration Partnership Project, the 3G (Third Generation) Moblie partnership project) the mobile communication system Long Term Evolution of Ti Chuing (Long Time Evolution, LTE) (Multimedia Broadcast Multicast Service, the MBMS) cut-in method of the multimedia broadcast multi-broadcasting business under the framework.
Background technology
Along with the development of network architecture flattening and the appearance of the removable access way of multiple high-speed wideband, make the wireless communication system of evolution that higher transmission rate, shorter transmission delay, lower cost can be provided, support mobility between the inner connecting system of 3GPP and the mobility between 3GPP connecting system and the non-3GPP connecting system or the like simultaneously, impel mobile communications network to propose the framework theory of future generation of LTE/SAE (System Architecture Evolution, System Architecture Evolution).
At present the framework of SAE as shown in Figure 1, network element wherein has:
EUTRAN (Evolved UTRAN, the wireless access network of evolution): be follow-on wireless access network, higher up-downgoing speed, lower transmission delay and reliable more wireless transmission can be provided.
MME (Mobility Management Entity): chain of command functional entity, be in charge of and store UE (User Equipment, subscriber equipment) context (such as UE sign, mobility management states, user security parameters etc.), distribute temporary mark, when UE quarters at this tracing area or this network, be responsible for this user is carried out authentication for the user.
SAE GW: the user plane functions entity, the user face data route is handled, and is divided into two kinds of Serving and PDN (outer data network).Serving SAE GW is mobile anchor point between SAE system and traditional 3GPP system and the mobile anchor point between the e-Node B; PDNSAE GW: termination is in the downlink data of the UE of idle state, when the downlink data that mails to UE arrives, initiates paging, and the context of management and storage UE is such as IP bearer service parameter and network internal routing iinformation etc.
The LTE/SAE network has the function of activation, maintenance, deactivation carrying as access and the bearer network of PDN, and the handoff functionality that continues to provide data service for the mobile subscriber.
In order to adapt to the development of future mobile communications, 3GPP proposes to adopt MBMS (Multimedia Broadcast Multicast Service, multimedia broadcast multi-broadcasting business) on the SAE/LTE framework.
And very big difference is arranged based on the MBMS framework of WCDMA (Wideband Code Division Multiple Access, wide code divides multiple access) system with based on the MBMS framework of SAE/LTE system.
In the WCDMA system, the MBMS business still relates to RNC (Radio NetworkController, radio network controller), this is because of the business of MBMS as a kind of point-to-multipoint, require downstream Node B (base station) to carry out synchronously, to satisfy the user when reception is professional from the identical MBMS of a plurality of base station/sub-districts, the data that can carry out physical layer merge, so that improve the reception of MBMS business.Simultaneously, RNC also has functions such as scheduling of resource concurrently, to realize a plurality of MBMS business in RNC and subordinate's service in base station transfer of data, carries out rational resource allocation and scheduling, realizes the optimization of Radio Resource.
For the MBMS of SAE/LTE system, need a similar entity to realize functions such as node is synchronous, resource coordination.For this reason, 3GPP proposes to introduce the MBMS-GW logic entity in the SAE/LTE framework, this entity is as BM-SC (Broadcast andmulticast Service Center, the BroadCast MultiCast Service center) and a node between the e-Node B, it is the IAD of network, be responsible for the relevant message signaling relevant of processes user data, do not relate to wireless network parameter, can also realize synchronous between MBMS-GW and the e-Node B simultaneously with session.BM-SC is connected with content service provider/multicast broadcast source (ContentProvider/Multicast Broadcast Source), finishes converging of data.In addition, also introduce MCE (MBMS Coordination Entity, multimedia broadcast multi-broadcasting business coordination function entity), to realize the Radio Resource coordination function of e-Node B.
Specifically, the introducing of MCE and MBSFN in LTE MBMS (MBMSSingle Frequency Network, MBMS Single Frequency Network) conceptual dependency:
The MBSFN synchronization zone: all base stations in MBSFN synchronization zone can be carried out synchronously, and carry out the MBSFN transmission, and MBSFN supports the synchronization zone one or more MBSFN district.On a given frequency layer, a base station only belongs to a MBSFN synchronization zone.MBSFN synchronization zone and MBMS service area are irrelevant.
MBSFN transmission: simultaneously from the identical waveform of a plurality of cell transmission, the MBSFN that carries out in MBSFN district transmits and can be seen as transmission from same source by the user.
The MBSFN district: MBSFN district is included in one group of sub-district in the MBSFN synchronization zone, and the MBSFN transmission can be carried out in these sub-districts.The part that the sub-district can be a plurality of MBSFN district in the MBSFN synchronization zone, and each MBSFN district can be distinguished by the different transmission contents and the sub-district of participation.
The introducing of these notions makes the professional transmission of the MBMS in SAE/LTE can be divided into two classes: a class is the MBSFN transmission, and another kind of is non-MBSFN transmission.Corresponding to MBSFN transmission, its MBSFN district is actually a zone can adjusting self size according to customer location and quantity, and it can be static, also can be dynamically, is provided with according to the attribute of business.For certain MBMS business, MCE need select adequate resources for it, comprises parameters such as frequency, time etc., makes up suitable MBSFN, carries out the MBSFN transmission; For a plurality of MBMS business, MCE need coordinate its corresponding a plurality of MBSFN transmission, comprises the MBSFN area size, and the use of Radio Resource etc. so that can be rational, be used resource efficiently.
Based on the characteristics of MBMS among the above-mentioned SAE/LTE, each manufacturer and operation commercial city have proposed the solution of corresponding LTE MBMS framework.
Two kinds of current important aspect are: (1) NTT DoCoMo, and T-Mobile, Orange etc. support, by the Lightweight framework (shown in Figure 2) of NSN proposition; (2) the LTE MBMS framework (shown in Figure 3) of Ericsson proposition.
Yet, insert the method that neither one is determined of going back for the MBMS under two kinds of frameworks at present.
Summary of the invention
Consider the problem that lacks the MBMS cut-in method under the LTE MBMS framework at present and propose the present invention, for this reason, the present invention aims to provide the MBMS cut-in method under a kind of LTE framework.
Comprise according to the MBMS cut-in method under the LTE framework of the present invention: mind-set multimedia broadcast multi-broadcasting business gateway transmission session begins message in the broadcast multi-broadcasting; Multimedia broadcast multi-broadcasting business gateway distributing user face resource and IP multicast address, and begin message to the session of multimedia broadcast multi-broadcasting business coordination function entity transparent transmission; Multimedia broadcast multi-broadcasting business coordination function entity carries out the coordinated decision of Radio Resource, and coordinates the result to multimedia broadcast multi-broadcasting business gateway feedback Radio Resource; The multimedia broadcast multi-broadcasting business gateway sends session to e-Node B and begins message; E-Node B adds multicast group, distributing radio resource.
Wherein, the session that mind-set multimedia broadcast multi-broadcasting business gateway sends in the broadcast multi-broadcasting begins to comprise in the message indication information that whether carries out the Radio Resource coordination.Correspondingly, multimedia broadcast multi-broadcasting business coordination function entity carries out the coordinated decision of Radio Resource according to indication information.Perhaps, multimedia broadcast multi-broadcasting business coordination function entity carries out the coordinated decision of Radio Resource voluntarily according to cell configuration.
In addition, the multimedia broadcast multi-broadcasting business gateway begins to comprise in the message IP multicast address and Radio Resource coordination result to the session of e-Node B transmission.Correspondingly, e-Node B adds the pairing multicast group of IP multicast address.
Cut-in method by MBMS under the LTE/SAE framework provided by the invention, when MCE was attached on the MBMS-GW entity as logic entity, two kinds of frameworks merged preferably, thereby helped the networking demand of operator, satisfying under the LTE/SAE framework demand, provide MBMS preferably.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the SAE framework of prior art;
Fig. 2 is the MBMS based on the SAE/LTE network architecture (Lightweight) configuration diagram according to prior art;
Fig. 3 is the MBMS configuration diagram based on the SAE/LTE network architecture according to prior art; And
Fig. 4 is the flow chart according to the cut-in method of MBMS under the LTE framework of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
The embodiment of the invention provides the MBMS cut-in method under a kind of LTE framework.Wherein, the multimedia broadcast multi-broadcasting business coordination function entity of hereinafter mentioning (MCE) can be regarded a logic entity as, specifically whether independently goes out the requirement that a physical entity depends on operator.
As shown in Figure 4, this method comprises following processing:
Step S402, broadcast multi-broadcasting center (BM-SC) send session to multimedia broadcast multi-broadcasting business gateway (MBMS-GW) and begin message (perhaps be called the MBMS session and begin message, wherein can comprise and whether carry out the indication information that Radio Resource is coordinated);
Step S404, MBMS-GW distributing user face resource and IP multicast address, and begin message to this session of multimedia broadcast multi-broadcasting business coordination function entity (MCE) transparent transmission;
Transparent transmission herein is meant that MBMS-GW directly begins message with the session that receives and sends to MCE, and does not make any change, that is to say, the session that MBMS-GW receives begins session that message and MCE receive, and to begin the content of message identical;
Step S406, MCE carries out the coordinated decision of Radio Resource, and coordinates the result to MBMS-GW feedback Radio Resource; If session begins to have carried in the message indication information, then MCE carries out the coordinated decision of Radio Resource according to this indication information; If session begins not carry in the message indication information, then MCE carries out the coordinated decision of Radio Resource voluntarily according to cell configuration;
Step S408, MBMS-GW send session to e-Node B (eNB) and begin message; Except comprising the message content that has received, also comprise IP multicast address and Radio Resource and coordinate the result in this message;
Step S410, e-Node B adds the multicast group of IP multicast address correspondence, distributing radio resource.
Cut-in method by MBMS under the LTE/SAE framework provided by the invention, when MCE was attached on the MBMS-GW entity as logic entity, two kinds of frameworks merged preferably, thereby helped the networking demand of operator, satisfying under the LTE/SAE framework demand, provide MBMS preferably.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the multimedia broadcast multicast service access method under the long-term evolution structure is characterized in that, comprising:
Mind-set multimedia broadcast multi-broadcasting business gateway transmission session begins message in the broadcast multi-broadcasting;
Described multimedia broadcast multi-broadcasting business gateway distributing user face resource and IP multicast address, and begin message to the described session of multimedia broadcast multi-broadcasting business coordination function entity transparent transmission;
Described multimedia broadcast multi-broadcasting business coordination function entity carries out association's decision-making of Radio Resource, and coordinates the result to described multimedia broadcast multi-broadcasting business gateway feedback Radio Resource;
Described multimedia broadcast multi-broadcasting business gateway sends described session to e-Node B and begins message;
Described e-Node B adds multicast group, distributing radio resource.
2. method according to claim 1 is characterized in that, the described session that the described multimedia broadcast multi-broadcasting business gateway of mind-set sends in the described broadcast multi-broadcasting begins to comprise in the message indication information that whether carries out the Radio Resource coordination.
3. method according to claim 2 is characterized in that, described multimedia broadcast multi-broadcasting business coordination function entity carries out the coordinated decision of described Radio Resource according to described indication information.
4. method according to claim 1 is characterized in that, described multimedia broadcast multi-broadcasting business coordination function entity carries out the coordinated decision of described Radio Resource voluntarily according to cell configuration.
5. method according to claim 1 is characterized in that, the described session that described multimedia broadcast multi-broadcasting business gateway sends to described e-Node B begins to comprise in the message described IP multicast address and described Radio Resource is coordinated the result.
6. method according to claim 5 is characterized in that, described e-Node B adds the pairing multicast group of described IP multicast address.
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| CN2007101420170A CN101370174B (en) | 2007-08-13 | 2007-08-13 | Multimedia broadcast multicast service access method under long-term evolution structure |
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| CN2007101420170A CN101370174B (en) | 2007-08-13 | 2007-08-13 | Multimedia broadcast multicast service access method under long-term evolution structure |
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| CN101370174A true CN101370174A (en) | 2009-02-18 |
| CN101370174B CN101370174B (en) | 2012-03-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857873A (en) * | 2011-06-30 | 2013-01-02 | 中兴通讯股份有限公司 | Wideband digital cluster system based on TD-LTE (time division-long term evolution) and data transmission method thereof |
| US20180213505A1 (en) * | 2010-02-12 | 2018-07-26 | Alcatel Lucent | Method for processing multimedia broadcast/multicast service session update |
| CN110351670A (en) * | 2012-10-25 | 2019-10-18 | 华为技术有限公司 | Trunked communication system, cluster server, communication device and medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1581744A (en) * | 2003-07-31 | 2005-02-16 | 北京三星通信技术研究有限公司 | Method for providing multiple QOS for MBMS business |
| CN1592167B (en) * | 2003-08-25 | 2010-05-12 | 北京三星通信技术研究有限公司 | Method for supporting MBMS backward compatibility |
-
2007
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180213505A1 (en) * | 2010-02-12 | 2018-07-26 | Alcatel Lucent | Method for processing multimedia broadcast/multicast service session update |
| CN102857873A (en) * | 2011-06-30 | 2013-01-02 | 中兴通讯股份有限公司 | Wideband digital cluster system based on TD-LTE (time division-long term evolution) and data transmission method thereof |
| WO2013000300A1 (en) * | 2011-06-30 | 2013-01-03 | 中兴通讯股份有限公司 | Td-lte based wideband digital cluster system and data transmission method thereof |
| CN102857873B (en) * | 2011-06-30 | 2017-02-08 | 中兴通讯股份有限公司 | Wideband digital cluster system based on TD-LTE (time division-long term evolution) and data transmission method thereof |
| CN110351670A (en) * | 2012-10-25 | 2019-10-18 | 华为技术有限公司 | Trunked communication system, cluster server, communication device and medium |
| US10992717B2 (en) | 2012-10-25 | 2021-04-27 | Huawei Technologies Co., Ltd. | Trunking communication system, trunking server, access network and trunking communication method |
| CN110351670B (en) * | 2012-10-25 | 2021-12-31 | 华为技术有限公司 | Cluster communication system, cluster server, communication device, and medium |
| US11671466B2 (en) | 2012-10-25 | 2023-06-06 | Huawei Technologies Co., Ltd. | Trunking communication system, trunking server, access network and trunking communication method |
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