CN101420655A - Resource distribution method for multimedia broadcast multicast service - Google Patents
Resource distribution method for multimedia broadcast multicast service Download PDFInfo
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- CN101420655A CN101420655A CNA2007101673371A CN200710167337A CN101420655A CN 101420655 A CN101420655 A CN 101420655A CN A2007101673371 A CNA2007101673371 A CN A2007101673371A CN 200710167337 A CN200710167337 A CN 200710167337A CN 101420655 A CN101420655 A CN 101420655A
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Abstract
The invention relates to the technical field of mobile multimedia, and discloses a resource allocation method of a multimedia broadcast multicast service. The method comprises the following steps: a multimedia broadcast multicast service coordination function entity sends an information request message to an evolving node B, the evolving node B replies an information response message to the multimedia broadcast multicast service coordination function entity, and the multimedia broadcast multicast service coordination entity allocates resources according to information reported by the evolving node B, and further, the multimedia broadcast multicast service coordination function entity sends a resource allocation result to the evolving node B. The method solves a technical problem that the resource allocation of the multimedia broadcast multicast service has no definite implementation method under an LTE/SAE architecture, and realizes the resource allocation by the multimedia broadcast multicast service coordination function entity (MCE).
Description
Technical field
The present invention relates to communication technical field, relate in particular to 3G (Third Generation) Moblie partnership project (The3rd Generation Partnership Project, hereinafter to be referred as 3GPP) mobile communication system Long Term Evolution (the Long Time Evolution that proposes, LTE)/System Architecture Evolution (System ArchitectureEvolution, SAE) resource allocation methods of the MBMS under (Multimedia Broadcast Multicast Service, multimedia broadcast multi-broadcasting business).
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 the mobility between the inner connecting system of 3GPP simultaneously, and the mobility between 3GPP connecting system and the non-3GPP connecting system or the like, impel mobile communications network to propose the framework theory of future generation of LTE/SAE (Long Term Evolution/System Architecture Evolution).
MBMS under the LTE/SAE (Multimedia Broadcast Multicast Service, multimedia broadcast multi-broadcasting business) framework as shown in Figure 1, network element wherein has:
BM-SC (Broadcast and multicast Service Center, BroadCast MultiCast Service center);
MBMS-GW (MBMS Gate-Way, MBMS gateway);
MCE (MBMS Coordination Entity, multimedia broadcast multi-broadcasting business coordination function entity);
ENB (Evolved NodeB, the Node B of evolution).
Wherein:
Broadcast multicast service center (BM-SC) is content provider's a inlet, be used for authorizing and initiating the MBMS bearer service at mobile network, and plan transmits the MBMS content to schedule.
The MBMS-GW logic entity is as a node between BM-SC and the eNB, 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 eNB simultaneously with session.
This logic entity of MCE is mainly used in and is certain MBMS service selection adequate resources, comprises parameters such as frequency, time, makes up suitable MBSFN (MBMS Single Frequency Network, MBMS single frequency network), carries out the MBSFN transmission; For a plurality of MBMS business, MCE need coordinate its corresponding a plurality of MBSFN transmission, comprises the use of MBSFN area size, Radio Resource etc., so that can use resource rationally, efficiently.
ENB is used to carry out radio bearer control, the mobility control under the connection mode, the scheduling of UE uplink and downlink resource, the integrity protection of compression of IP head and user data, the scheduling of broadcast and transmission, the configuration of UE measurement message and scheduling etc.
In addition, as shown in Figure 1, the interface of above-mentioned several logic entities comprises M1, M2, M3, and the specific descriptions of each interface are as follows:
M1: be the interface between MBMS-GW and the eNB, belong to UP (User Plane, user's face) interface, adopt IP (Internet Protocol, Internet protocol) multicast transmission mode;
M2: be the interface between MCE and the eNB, belong to CP (Control Plane, chain of command) interface, adopt PTP (Point To Point, point-to-point) transmission means;
M3: be the interface between MBMS-GW and the MCE, belong to CP (Control Plane, chain of command) interface, adopt PTP (Point To Point, point-to-point) transmission means.
The MBMS pattern of supporting in LTE has two kinds: broadcast mode and enhancement mode broadcast mode.When carrying out resource allocation, need consider the residing position of UE and receive professional number for enhancement mode broadcast mode business, therefore need obtain the corresponding information of eNB by the M2 interface, so that carry out resource allocation at MCE.Carry out resource allocation for MCE at present and also do not have definite method.
Summary of the invention
Technical problem to be solved by this invention is, a kind of resource allocation methods of multimedia broadcast multi-broadcasting business is provided, and the resource allocation that solves MBMS under the LTE/SAE framework is not determined the technical problem of implementation method to realize that MCE carries out resource allocation.
At above-mentioned technical problem, the invention provides a kind of resource allocation methods of multimedia broadcast multi-broadcasting business, that is:
Multimedia broadcast multi-broadcasting business coordination function entity sends information request message to the Node B of evolution, the Node B of evolution is to multimedia broadcast multi-broadcasting business coordination function entity return information response message, carries out resource allocation by multimedia broadcast multi-broadcasting business coordination function entity according to the information that the Node B of evolution reports.
Described method further comprises:
Described multimedia broadcast multi-broadcasting business coordination function entity sends to the result of resource allocation the Node B of described evolution.
In the described method:
Multimedia broadcast multi-broadcasting business coordination function entity comprises the type of institute's information requested in the described information request message of the Node B transmission of evolution; The Node B of evolution comprises the information that the information type by appointment in the described information request message reports in the described info response message that multimedia broadcast multi-broadcasting business coordination function entity is replied.
If multimedia broadcast multi-broadcasting business coordination function entity is in the described information request message of the Node B transmission of evolution, do not specify the type of institute's information requested, then the Node B of evolution will report all information in the described info response message that multimedia broadcast multi-broadcasting business coordination function entity is replied.
The Node B of described evolution is in the described info response message that multimedia broadcast multi-broadcasting business coordination function entity is replied, and the information that reports comprises: the subscriber equipment statistical information of multimedia broadcast multi-broadcasting business or cell capacity information or resource are used information or their combination.
When the information that described multimedia broadcast multi-broadcasting business coordination function entity reports in the Node B according to evolution is carried out resource allocation, if initial resource allocation, then distribution result is sent to the Node B of evolution, wherein, described resource allocation result comprises frequency, time, cell attribute or their combination.
When the information that described multimedia broadcast multi-broadcasting business coordination function entity reports in the Node B according to evolution is carried out resource allocation, follow-uply if distributed resource dynamically adjust, adjust the back:
If variation has taken place in resource allocation, the resource allocation result after described multimedia broadcast multi-broadcasting business coordination function entity will upgrade sends to the node of evolution, and wherein, described resource allocation result comprises frequency, time, cell attribute or their combination; When described multimedia broadcast multi-broadcasting business coordination function entity sends resource allocation result to the node of evolution, only send the partial content that upgrades or all the elements of resource allocation result are sent.
If resource allocation does not change, described multimedia broadcast multi-broadcasting business coordination function entity general does not send message to the node of evolution.
The present invention also provides a kind of information uploading method of multimedia broadcast multi-broadcasting business, that is:
The Node B of evolution is after receiving the information request message that multimedia broadcast multi-broadcasting business coordination function entity sends, and to described multimedia broadcast multi-broadcasting business coordination function entity return information response message, the information of carrying out reports.
Wherein:
In the information request message that the multimedia broadcast multi-broadcasting business coordination function entity that the Node B of described evolution is received sends, be to comprise the message specified message type or that do not comprise the appointed information type;
The Node B of described evolution comprises the information of specified type in the described information request message or comprises all information in the info response message that described multimedia broadcast multi-broadcasting business coordination function entity is replied.
By the present invention, the method for a kind of resource allocation of MBMS under the LTE/SAE framework is provided, the information that MCE can be reported according to eNB is rationally carried out resource allocation decisions, thereby can be provided the MBMS business preferably satisfying under the LTE/SAE framework demand.
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
Fig. 1 is the MBMS configuration diagram under the LTE/SAE of prior art;
Fig. 2 is the flow chart that the eNB information of carrying out according to the embodiment of the method for the invention reports;
Fig. 3 is the flow chart that carries out initial resource allocation according to the MCE of the embodiment of the method for the invention;
Fig. 4 is the flow chart that carries out the dynamic adjustment of resource allocation according to the MCE of the embodiment of the method for the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.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 present invention is directed in the existing MBMS technology, do not have the problem of the method determined when carrying out resource allocation, proposed a kind of method that reports to the MCE information of carrying out by eNB, and a kind of information based on eNB reports, carry out the method for resource allocation by MCE.
Main innovate point of the present invention is, has provided a kind of eNB and MCE and has reported by Signalling exchange realization information, and carried out resource allocation by MCE according to the information that reports, and can further resource allocation result be handed down to the technical scheme of eNB.
Technical scheme of the present invention can be implemented under framework shown in Figure 1, and as described in the background art, the LTE/SAE framework comprises: BM-SC, MBMS-GW, MCE, eNB.Wherein, eNB reports to the MCE information of carrying out by the M2 interface, and described M2 interface is to belong to CP (Control Plane, chain of command) interface, adopts PTP (Point To Point, point-to-point) transmission means.
Based on system architecture shown in Figure 1, Fig. 2 has provided according to technical scheme of the present invention and has realized that eNB carries out a specific embodiment of information report flow.
Step S202, MCE sends information request message to eNB.
In the described information request message, can comprise the information requested type, promptly in message, specify the information type that needs eNB to report.Perhaps, MCE does not control for information type, does not promptly specify the information type that needs eNB to report in message.
Step S204, eNB return information response message.
In the described information request message that eNB received, when comprising MCE information requested type, eNB will report the information of corresponding types; Otherwise eNB reports all information.
ENB can partly comprise following content to the information that MCE reports: receive the UE statistical information of MBMS business, cell capacity information, resource use information etc.
Based on system architecture shown in Figure 1, and the information that is obtained that reports based on the eNB information of carrying out, Fig. 3 has provided according to technical scheme of the present invention and has realized that MCE carries out a specific embodiment of the flow process of initial resource allocation.
Step S302, MCE obtain the information that eNB reports, and carry out resource allocation.
Wherein, the information that described eNB reports can partly comprise following content: receive the UE statistical information of MBMS business, cell capacity information, resource use information etc.
Step S304, MCE sends resource allocation message to eNB, and resource allocation result is sent to eNB.Wherein, the MCE resource allocation result that sends to eNB comprises parameters such as frequency, time, cell attribute.During transmission, be that all the elements with resource allocation result all send to eNB.
Based on system architecture shown in Figure 1, and the information that is obtained that reports based on the eNB information of carrying out, the MCE that Fig. 4 has provided according to the embodiment of the method for the invention carries out the flow process that resource allocation is dynamically adjusted.
Step S402, MCE obtain the information that eNB reports, and carry out resource allocation.
Wherein, the information that described eNB reports can partly comprise following content: receive the UE statistical information of MBMS business, cell capacity information, resource use information etc.
Does step S404 after the distribution, judge that change has taken place in resource allocation? if, execution in step S406, otherwise, execution in step S408.
Step S406, MCE sends resource allocation message to eNB, and resource allocation result is sent to eNB.
When sending resource allocation result, can only send the partial content that upgrades, also all the elements of resource allocation result can be sent.Wherein, the MCE resource allocation result that sends to eNB comprises parameters such as frequency, time, cell attribute.
Step S408, if resource allocation is constant, MCE does not send message to eNB.
As mentioned above,, provide the method for MBMS resource allocation under the LTE/SAE framework, thereby can provide the MBMS business preferably satisfying under the LTE/SAE framework demand by means of the present invention.
Described herein 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.Therefore, all any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improve and upgrade or the like, all should be included within protection scope of the present invention.
Claims (10)
1, a kind of resource allocation methods of multimedia broadcast multi-broadcasting business is characterized in that,
Multimedia broadcast multi-broadcasting business coordination function entity sends information request message to the Node B of evolution, the Node B of evolution is to multimedia broadcast multi-broadcasting business coordination function entity return information response message, carries out resource allocation by multimedia broadcast multi-broadcasting business coordination function entity according to the information that the Node B of evolution reports.
2, resource allocation methods as claimed in claim 1 is characterized in that, described method further comprises:
Described multimedia broadcast multi-broadcasting business coordination function entity sends to the result of resource allocation the Node B of described evolution.
3, resource allocation methods as claimed in claim 1 or 2 is characterized in that:
Multimedia broadcast multi-broadcasting business coordination function entity comprises the type of institute's information requested in the described information request message of the Node B transmission of evolution;
The Node B of evolution comprises the information that the information type by appointment in the described information request message reports in the described info response message that multimedia broadcast multi-broadcasting business coordination function entity is replied.
4, resource allocation methods as claimed in claim 1 or 2 is characterized in that:
If multimedia broadcast multi-broadcasting business coordination function entity is in the described information request message of the Node B transmission of evolution, do not specify the type of institute's information requested, then the Node B of evolution will report all information in the described info response message that multimedia broadcast multi-broadcasting business coordination function entity is replied.
5, resource allocation methods as claimed in claim 1 or 2 is characterized in that:
The Node B of described evolution is in the described info response message that multimedia broadcast multi-broadcasting business coordination function entity is replied, and the information that reports comprises: the subscriber equipment statistical information of multimedia broadcast multi-broadcasting business or cell capacity information or resource are used information or their combination.
6, resource allocation methods as claimed in claim 1 or 2 is characterized in that:
When the information that described multimedia broadcast multi-broadcasting business coordination function entity reports in the Node B according to evolution is carried out resource allocation, if initial resource allocation, then distribution result is sent to the Node B of evolution, wherein, described resource allocation result comprises frequency, time, cell attribute or their combination.
7, resource allocation methods as claimed in claim 1 or 2 is characterized in that:
When the information that described multimedia broadcast multi-broadcasting business coordination function entity reports in the Node B according to evolution is carried out resource allocation, follow-uply if distributed resource dynamically adjust, adjust the back:
If variation has taken place in resource allocation, the resource allocation result after described multimedia broadcast multi-broadcasting business coordination function entity will upgrade sends to the node of evolution, and wherein, described resource allocation result comprises frequency, time, cell attribute or their combination;
If resource allocation does not change, described multimedia broadcast multi-broadcasting business coordination function entity general does not send message to the node of evolution.
8, resource allocation methods as claimed in claim 7 is characterized in that:
When described multimedia broadcast multi-broadcasting business coordination function entity sends resource allocation result to the node of evolution, only send the partial content that upgrades or all the elements of resource allocation result are sent.
9, a kind of information uploading method of multimedia broadcast multi-broadcasting business is characterized in that:
The Node B of evolution is after receiving the information request message that multimedia broadcast multi-broadcasting business coordination function entity sends, and to described multimedia broadcast multi-broadcasting business coordination function entity return information response message, the information of carrying out reports.
10, information uploading method as claimed in claim 9 is characterized in that:
In the information request message that the multimedia broadcast multi-broadcasting business coordination function entity that the Node B of described evolution is received sends, be to comprise the message specified message type or that do not comprise the appointed information type;
The Node B of described evolution comprises the information of specified type in the described information request message or comprises all information in the info response message that described multimedia broadcast multi-broadcasting business coordination function entity is replied.
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| CN101835266A (en) * | 2009-12-25 | 2010-09-15 | 中国科学院声学研究所 | Method for dynamically allocating data path identification numbers in WiMax system |
| CN101925006A (en) * | 2009-06-16 | 2010-12-22 | 中兴通讯股份有限公司 | MBMS demodulating and coding solution (MCS) determining method and MCE |
| CN101998250A (en) * | 2009-08-25 | 2011-03-30 | 大唐移动通信设备有限公司 | Method, device and system for synchronously transmitting multicast control channel message |
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- 2007-10-25 CN CNA2007101673371A patent/CN101420655A/en active Pending
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| CN101925006A (en) * | 2009-06-16 | 2010-12-22 | 中兴通讯股份有限公司 | MBMS demodulating and coding solution (MCS) determining method and MCE |
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| CN101998250A (en) * | 2009-08-25 | 2011-03-30 | 大唐移动通信设备有限公司 | Method, device and system for synchronously transmitting multicast control channel message |
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| CN102045643A (en) * | 2009-10-12 | 2011-05-04 | 中兴通讯股份有限公司 | Resource adjustment method and multi-cell/multicast coordination entity |
| CN101835266A (en) * | 2009-12-25 | 2010-09-15 | 中国科学院声学研究所 | Method for dynamically allocating data path identification numbers in WiMax system |
| CN101835266B (en) * | 2009-12-25 | 2012-11-21 | 中国科学院声学研究所 | Method for dynamically allocating data path identification numbers in WiMax system |
| WO2011082699A1 (en) * | 2010-01-11 | 2011-07-14 | 电信科学技术研究院 | Method and system for determining mapping relationship between multicast broadcast single frequency network area and service area |
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| CN102469595A (en) * | 2010-11-18 | 2012-05-23 | 中兴通讯股份有限公司 | Reconfiguration trigger method and reconfiguration trigger device for reconfigurable wireless system |
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Application publication date: 20090429 |