CN101478727B - Method for radio resource allocation for broadcast multicast service - Google Patents
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Abstract
The present invention provides a method for allocating wireless resource for broadcast/multicast service, and is used for allocating wireless resource for broadcast/multicast service in the broadcast and communication fusion system which comprises a broadcast/multicast gateway that is used for identifying full-network broadcasting service. The method of the invention comprises the following steps: receiving the service conversation beginning information of a certain broadcast/multicast service by the broadcast/multicast gateway; identifying the service style of broadcast/multicast service by broadcast/multicast gateway, if the broadcast/multicast service is full network broadcast service, adding the information related to wireless resource taken by full network broadcast service in the service conversation beginning information of full network broadcast service by broadcast/multicast gateway, and then transmitting the service conversation beginning information to base station. The method of the invention settles the problem of realizing wireless resource allocation for different styles of broadcast/multicast service in the broadcast and communication fusion system, and facilitates the realization of fusion of broadcast and communication in air interface.
Description
Technical field
The present invention relates to wireless resource allocation methods, particularly a kind of broadcasting with the emerging system of communicating by letter in be the method for BroadCast MultiCast Service distributing radio resource.
Background technology
Along with enriching of development of wireless communication devices and multimedia service, the user wishes to use the demand of multimedia service (for example TV programme, video request program etc.) obvious day by day whenever and wherever possible by the mobile network.In order to satisfy this demand, the emerging service such as the Digital Video Broadcasting Handheld business is arisen at the historic moment.This type of service needed is transferred to portable terminal wirelessly with large batch of data.
According to the principle of data wireless transmission, wireless transmission method can be divided into according to unicast or multicast principle and carry out Wireless transmission mode (as wireless transmission method) and carry out Wireless transmission mode (as based on the wireless transmission method of received terrestrial digital broadcasting or based on the wireless transmission method of satellite digital broadcasting) according to broadcast principles based on mobile communications network.Carry out that Wireless transmission mode is adapted at alternately, use in program request even the instant messaging according to unicast or multicast principle, but to realize extensive, extensively covering, the video transmission under multi-user's situation is very uneconomical; And watch when being wide covering, low cost, support multi-user, but be difficult to support the business of program request and two-way interaction according to the advantage that broadcast principles is carried out Wireless transmission mode.
Consider the pluses and minuses that aforementioned wireless transmission method is had separately, and the diversity of user's request in actual applications (may require to receive the current video frequency program of a certain TV station in the mode of data broadcasting as the user, also may require to receive the video frequency program of a certain video website) in the mode of data-on-demand, those skilled in the art has proposed the transmission means of different principle is combined to support the related system of dissimilar multimedia services, and this system can be called as the broadcasting and the emerging system of communicating by letter.At publication number is CN 101022571A, and name is called in the list of references 1 of " a kind of system and method for realizing mobile multi-media service ", has just introduced a kind of typical broadcasting and the emerging system of communicating by letter.This type of broadcasting with the emerging system of communicating by letter in, described fusion is mainly reflected in the intercommunication of network side, promptly in this system, include the correlation module that is respectively applied for broadcast data transmission and communication data transmission, this two generic module is distinguished according to frequency domain or time domain Radio Resource, after data flow transmission that network will be mixed with broadcast data and communication data is in this system, by system the type of data packet in the data flow is distinguished, transmitted by the packet of corresponding module utilization Radio Resource separately then respective type.The above-mentioned amalgamation mode in the network side intercommunication is a kind of preliminary fusion, does not realize real sharing on Radio Resource.For example, in existing broadcasting and the emerging system of communicating by letter, suppose that the module that is used for broadcast data transmission has idle Radio Resource, and the module that is used for the communication data transmission is owing to the too busy choking phenomenon that generates.But because on Radio Resource, do not share between two kinds of transmission meanss, therefore the Radio Resource of the free time of being occupied by the module that is used for broadcast data transmission can not be distributed to the module that is used for the communication data transmission in time, and this has just wasted valuable frequency resource.
At this problem, those skilled in the art has proposed the thinking that interface realization is aloft merged.At publication number is CN 101150751, and name is called in the list of references 2 of " method of cellular network and realization broadcast communication and data communication ", has just provided a kind of interface side aloft and has realized broadcasting and the system that communicates by letter and merge.By this system, can adjust the Radio Resource that broadcasting service and communication service take flexibly, solve merely and merge the frequency spectrum resource waste problem that can't overcome by network side.But in this list of references, though the system that has proposed the broadcasting of interface side realization aloft and communicated by letter and merge, but not to this system how for the specific implementation mechanism of all kinds of business (as the whole network broadcasting service, regional broadcast business, the Cell Broadcast CB multicast service) distributing radio resource in broadcasting and the communication service describes, be unfavorable for realization in actual applications.
Summary of the invention
The objective of the invention is to overcome existing broadcasting and be the defective of broadcasting, in broadcasting and the emerging system of communicating by letter, be the method for BroadCast MultiCast Service distributing radio resource thereby provide a kind of with communication service distributing radio resource definition specific implementation mechanism with the emerging system of communicating by letter.
To achieve these goals, the invention provides a kind of method of BroadCast MultiCast Service distributing radio resource that is, be used for being the BroadCast MultiCast Service distributing radio resource with the emerging system of communicating by letter in broadcasting; Described broadcasting comprises the broadcast multi-broadcasting gateway that is used to discern the whole network broadcasting service with the emerging system of communicating by letter; This method comprises:
The service conversation that step 1), described broadcast multi-broadcasting gateway receive a certain BroadCast MultiCast Service begins message;
Step 2), described broadcast multi-broadcasting gateway is discerned the type of service of described BroadCast MultiCast Service, if described BroadCast MultiCast Service is the whole network broadcasting service, then described broadcast multi-broadcasting gateway begins to add in the message information about the shared Radio Resource of described the whole network broadcasting service at the service conversation of described the whole network broadcasting service, then described service conversation is begun message and sends to the base station.
In the technique scheme, described broadcasting also comprises the many sub-districts coordination unit that is used for identified region broadcasting service and Cell Broadcast CB multicast service with the emerging system of communicating by letter; This method also comprises:
The service conversation of the BroadCast MultiCast Service that step 3), described broadcast multi-broadcasting gateway can't be discerned begins forwards and gives many sub-districts coordination unit;
It is regional broadcast business or Cell Broadcast CB multicast service that step 4), described many sub-districts coordination unit identify described BroadCast MultiCast Service, and described many sub-districts coordination unit begins to add in the message information about the professional shared Radio Resource of described regional broadcast at the service conversation of the regional broadcast business that identifies;
Step 5), described many sub-districts coordination unit begin the base station that message sends to correspondence with the session of described regional broadcast business or Cell Broadcast CB multicast service.
In the technique scheme, after described base station receives that described service conversation begins message,, then extract and store described information if described service conversation begins the information that message comprises professional shared Radio Resource.
In the technique scheme, before described step 1), described broadcasting is broadcasted control centre with the whole network in the emerging system of communicating by letter and is notified described broadcast multi-broadcasting gateway with professional and these professional shared Radio Resources that all belong to the whole network broadcasting service type, and is stored in the described broadcast multi-broadcasting gateway.
In the technique scheme, described service conversation begin message also comprise be used for described service conversation begin message and other other message type field of message phase region, be used for a business and other traffic flag field of other professional phase region, to be used to the business of identifying specifically be the service area field that the business type field of which kind of type and being used to is described the sign of the professional institute of regional broadcast respective base station.
In the technique scheme, described step 4) also comprises: after described many sub-districts coordination unit identifies described BroadCast MultiCast Service and is the regional broadcast business, the described business type field that described service conversation is begun in the message is revised as " regional broadcast business ", adds the sign that belongs to all base stations in the broadcast area of this regional broadcast business to service area field that described service conversation begins message.
In the technique scheme, described step 4) also comprises: after described many sub-districts coordination unit identifies described BroadCast MultiCast Service and is the Cell Broadcast CB multicast service, described business type field is revised as " Cell Broadcast CB multicast service ".
In the technique scheme, described step 5) comprises:
The regional broadcast business that identifies is sent to all base stations of all base stations of being write down in the described service area field or the control of many sub-districts coordination unit;
The Cell Broadcast CB multicast service that identifies is sent to all base stations of this business of request.
In the technique scheme, also comprise in the base station of described broadcasting and the emerging system of communicating by letter being used for broadcast service classification device that the type of broadcast service data bag is classified, and be used to user in the sub-district to carry out the local resource distribution module of allocation of radio resources;
Described the whole network broadcasting service or described regional broadcast business after the broadcast service data bag is received in described base station, are identified by described broadcast service classification device in described base station after the information of storage about Radio Resource; Utilizing the information about Radio Resource of being stored then is described the whole network broadcasting service or regional broadcast traffic assignments Radio Resource; Be the real-time distributing radio resource of Cell Broadcast CB multicast service by described local resource distribution module at last.
The invention has the advantages that:
Method of the present invention has solved the problem that how realizes allocation of radio resources for dissimilar BroadCast MultiCast Service in broadcasting and the emerging system of communicate by letter, help broadcasting and communicate by letter the fusion of interface realization aloft.
Description of drawings
Fig. 1 is the be broadcasting related in the method for BroadCast MultiCast Service distributing radio resource and the structural representation of the emerging system of communicating by letter of the present invention;
Fig. 2 is regional broadcast service conversation or the interacting message figure of Cell Broadcast CB multicast service session between different entities;
Fig. 3 is the flow chart of BroadCast MultiCast Service distributing radio resource method that is of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Broadcasting with the emerging system of communicating by letter in, system both can realize BroadCast MultiCast Service (promptly broadcasting with the emerging system of communicating by letter in broadcasting service), also can realize unicast service (just broadcasting with the emerging system of communicating by letter in communication service), mainly be how BroadCast MultiCast Service wherein to be done allocation of radio resources describe in the present invention.
In the prior art, different according to service range and user's request are divided into different types with BroadCast MultiCast Service, as the whole network broadcasting, regional broadcast and Cell Broadcast CB multicast.Wherein, described the whole network broadcasting service is that synchronized broadcasting is done in all sub-districts in whole network, no matter in the sub-district whether user's request is arranged, and program is broadcasted all the time.And the regional broadcast business is to realize synchronized broadcasting on all sub-districts in a specific region.The Cell Broadcast CB multicast service is to carry out on-demand broadcasting in single subdistrict, and different sub-districts can provide identical business datum content, but does not require between each sub-district in process of transmitting synchronously.By above-mentioned classification, can with under the prerequisite that satisfies user's common requirement, satisfy user's individual demand to specific program segmentation service zone to BroadCast MultiCast Service.
In Fig. 1, provided and to have done the broadcasting of allocation of radio resources and the schematic diagram of the emerging system of communicating by letter to dissimilar broadcasting.This system comprises the broadcasting service center (BM-SC) that is used for sending the broadcast multi-broadcasting data, be used for broadcast multi-broadcasting data from broadcast service center is sent to the broadcast multi-broadcasting gateway (E-MBMS GW) of base station, many sub-districts coordination unit (MCE) of being responsible for the whole network broadcasting control centre (GBC) of the whole network broadcasting service management, under the regional broadcast transmission mode Radio Resource of the base station in zone being managed, comprises base station and terminal in addition.In described base station, also comprise being used for broadcast service classification device that the type of broadcast service data bag is classified, and be used to user in the sub-district to carry out the local resource distribution module of allocation of radio resources.
On the basis of above-mentioned broadcast multicast system, with reference to figure 2, for dissimilar BroadCast MultiCast Service is done allocation of radio resources respectively.Can know from the characteristics of the whole network broadcasting service, the initiation of this business need not triggered by user terminal, the whole network broadcasting control centre is before BroadCast MultiCast Service begins transmission, all are belonged to professional and these professional shared Radio Resource notification broadcast multicast gateways of the whole network broadcasting service type, these information of broadcast multi-broadcasting gateway stores.Before needs transmit certain BroadCast MultiCast Service, mind-set broadcast multi-broadcasting gateway sends this professional service conversation and begins message in the broadcasting service, after the broadcast multi-broadcasting gateway receives this message, just can with should business and previous all of storing business of belonging to the whole network broadcasting service type compare, when the business that newly receives belonged to the whole network broadcasting service, then the broadcast multi-broadcasting gateway began message to all base stations forwarding service conversations.Described service conversation begins information that message needs to comprise in the present invention shown in following table 1, comprises type of message, traffic flag, type of service, service area and shared Radio Resource etc.Begin in the message at the service conversation relevant with the whole network broadcasting service, described business type field is marked as the whole network broadcasting, and the described Radio Resource field mark that takies is the shared Radio Resource of this whole network broadcasting service.Because the shared wireless resource information of the whole network broadcasting service is stored in the broadcast multi-broadcasting gateway by the whole network broadcasting center before BroadCast MultiCast Service begins transmission, the information that therefore takies the Radio Resource field can directly obtain from the broadcast multi-broadcasting gateway.
Table 1
| Field | Meaning |
| Type of message | Indicate that this message is that service conversation begins message |
| Traffic flag | IP address, port numbers, channel etc. also can be their combinations |
| Type of service | Indicating services is the whole network broadcasting service, regional broadcast business or Cell Broadcast CB multicast service |
| Service area | This field is meaningful when type of service is the regional broadcast business, provides the sign of all eNB that belong to broadcast area |
[0036]?
| Take Radio Resource | Comprising frequency, time, modulation coding mode etc., is empty for this field of Cell Broadcast CB multicast service |
Except the whole network broadcasting service, regional broadcast the beginning professional and transmission of Cell Broadcast CB multicast service is all triggered by the request that terminal is initiated by the base station, these relevant informations of sending the base station of request all are recorded in the coordination unit of many sub-districts, therefore, as shown in Figure 3, the service conversation that the broadcast multi-broadcasting gateway does not directly belong to those outer other business (being regional broadcast business or Cell Broadcast CB multicast service) of the whole network broadcasting service begins forwards to the base station, but is forwarded to many sub-districts coordination unit earlier.Because these professional types and indeterminate, therefore, the service conversation that sends to many sub-districts coordination unit begins in the message, and type of service, service area, to take Radio Resource situation etc. all indeterminate.Many sub-districts coordination unit is judged the type of business after receiving that service conversation begins message.Determination methods to type of service can adopt any one available method in the prior art, and for example in a kind of determination methods, many sub-districts coordination unit can grasp receiving certain professional base station number by the real-time feedback of periodic statistics or base station; If the base station number is higher than the predefined threshold values of system, for example 60% of total number of base, just this type of service is set to the regional broadcast business, otherwise is the Cell Broadcast CB multicast service.After the judged result that obtains type of service, can begin business type field in the message according to the clear and definite service conversation of judged result.Specifically, for the regional broadcast business, many sub-districts coordination unit is revised as " regional broadcast business " with the business type field that service conversation begins in the message, the sign that will belong to all base stations (eNB) in this service broadcast zone adds the service area field to, and be regional broadcast traffic assignments Radio Resource, the resource information that is about to be assigned to is filled out and is taken the Radio Resource field.Many sub-districts coordination unit also will begin amended service conversation all base stations that forwards is controlled for all interior base stations of zone or many sub-districts coordination unit.Service conversation to the Cell Broadcast CB multicast service begins message, except business type field being revised as " Cell Broadcast CB multicast service ", need not to do other any modifications, directly is transmitted to this professional base station of request by many sub-districts coordination unit.
No matter can know from above-mentioned explanation, be the whole network broadcasting service, or regional broadcast business or Cell Broadcast CB multicast service, and service conversation begins message all can be forwarded to the base station.The base station is after receiving that service conversation begins message, by the business type field that service conversation begins in the message type of corresponding service is judged, if corresponding service is the whole network broadcasting service or regional broadcast business, then according to prior art service conversation is begun message handles except needs, also need type of service, Radio Resource situation of taking etc. are begun to extract the message and preserve from service conversation, the information of being preserved is shown in following table 2.If corresponding service is the Cell Broadcast CB multicast service, then only service conversation begun message and handle, and need not information in the preservation table 2 according to prior art.
Table 2
| Field | Meaning |
| Traffic flag | Be used for can matching when business data packet arrives the business data packet feature field of this record, for example IP address, port numbers, channel etc. can be their combinations |
| Type of service | Indicating this business is the whole network broadcasting service or regional broadcast business |
| Take Radio Resource | Comprise frequency, time, modulation coding mode etc. |
After above-mentioned operation, the broadcasting service center begins to send broadcast service data, and the type of service of described broadcast service data may be any one or the wherein several combination in three types.After these broadcast service datas arrive the base station, broadcast service classification device in the base station can identify wherein the whole network broadcasting service or regional broadcast business according to the information in the table 2, is that the related service distributing radio resource is to realize the transmission to business datum according to defined Radio Resource in the table 2 then.If the type of service of broadcast service data is not identified in the base station according to the information in the table 2, illustrate that then this business is the Cell Broadcast CB multicast service, call local resource distribution module distributing radio resource in fact the time, the local resource distribution module is a prior art to wireless resource allocation, no longer describes in detail at this.Wherein, the professional shared Radio Resource of the whole network broadcasting service or regional broadcast is constant in a period of time, and the shared Radio Resource of Cell Broadcast CB multicast service may change at any time, all dispatches because the local resource distribution module generally need change every frame according to the service conditions in this sub-district.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (11)
1. one kind is the method for BroadCast MultiCast Service distributing radio resource, is used for being the BroadCast MultiCast Service distributing radio resource in broadcasting with the emerging system of communicating by letter; Described broadcasting comprises the broadcast multi-broadcasting gateway that is used to discern the whole network broadcasting service with the emerging system of communicating by letter; This method comprises:
The service conversation that step 1), described broadcast multi-broadcasting gateway receive a certain BroadCast MultiCast Service begins message;
Step 2), described broadcast multi-broadcasting gateway is discerned the type of service of described BroadCast MultiCast Service, if described BroadCast MultiCast Service is the whole network broadcasting service, then described broadcast multi-broadcasting gateway begins to add in the message information about the shared Radio Resource of described the whole network broadcasting service at the service conversation of described the whole network broadcasting service, then described service conversation is begun message and sends to the base station.
2. according to claim 1 is the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, described broadcasting also comprises the many sub-districts coordination unit that is used for identified region broadcasting service and Cell Broadcast CB multicast service with the emerging system of communicating by letter; This method also comprises:
The service conversation of the BroadCast MultiCast Service that step 3), described broadcast multi-broadcasting gateway can't be discerned begins forwards and gives many sub-districts coordination unit;
It is regional broadcast business or Cell Broadcast CB multicast service that step 4), described many sub-districts coordination unit identify described BroadCast MultiCast Service, and described many sub-districts coordination unit begins to add in the message information about the professional shared Radio Resource of described regional broadcast at the service conversation of the regional broadcast business that identifies;
Step 5), described many sub-districts coordination unit begin the base station that message sends to correspondence with the session of described regional broadcast business or Cell Broadcast CB multicast service.
3. according to claim 1 and 2 is the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, after described base station receives that described service conversation begins message,, then extract and store described information if described service conversation begins the information that message comprises professional shared Radio Resource.
4. according to claim 1 and 2 is the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, before described step 1), described broadcasting is broadcasted control centre with the whole network in the emerging system of communicating by letter and is notified described broadcast multi-broadcasting gateway with professional and these professional shared Radio Resources that all belong to the whole network broadcasting service type, and is stored in the described broadcast multi-broadcasting gateway.
5. according to claim 3 is the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, before described step 1), described broadcasting is broadcasted control centre with the whole network in the emerging system of communicating by letter and is notified described broadcast multi-broadcasting gateway with professional and these professional shared Radio Resources that all belong to the whole network broadcasting service type, and is stored in the described broadcast multi-broadcasting gateway.
6. according to claim 2 is the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, described service conversation begin message also comprise be used for described service conversation begin message and other other message type field of message phase region, be used for a business and other traffic flag field of other professional phase region, to be used to the business of identifying specifically be the service area field that the business type field of which kind of type and being used to is described the sign of the professional institute of regional broadcast respective base station.
7. according to claim 3 is the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, described service conversation begin message also comprise be used for described service conversation begin message and other other message type field of message phase region, be used for a business and other traffic flag field of other professional phase region, to be used to the business of identifying specifically be the service area field that the business type field of which kind of type and being used to is described the sign of the professional institute of regional broadcast respective base station.
According to claim 6 or 7 described be the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, described step 4) also comprises: after described many sub-districts coordination unit identifies described BroadCast MultiCast Service and is the regional broadcast business, the described business type field that described service conversation is begun in the message is revised as " regional broadcast business ", adds the sign that belongs to all base stations in the broadcast area of this regional broadcast business to service area field that described service conversation begins message.
According to claim 6 or 7 described be the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, described step 4) also comprises: after described many sub-districts coordination unit identifies described BroadCast MultiCast Service and is the Cell Broadcast CB multicast service, described business type field is revised as " Cell Broadcast CB multicast service ".
According to claim 6 or 7 described be the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that described step 5) comprises:
The regional broadcast business that identifies is sent to all base stations of all base stations of being write down in the described service area field or the control of many sub-districts coordination unit;
The Cell Broadcast CB multicast service that identifies is sent to all base stations of this business of request.
11. according to claim 3 is the method for BroadCast MultiCast Service distributing radio resource, it is characterized in that, also comprise in the base station of described broadcasting and the emerging system of communicating by letter being used for broadcast service classification device that the type of broadcast service data bag is classified, and be used to user in the sub-district to carry out the local resource distribution module of allocation of radio resources;
Described the whole network broadcasting service or described regional broadcast business after the broadcast service data bag is received in described base station, are identified by described broadcast service classification device in described base station after the information of storage about Radio Resource; Utilizing the information about Radio Resource of being stored then is described the whole network broadcasting service or regional broadcast traffic assignments Radio Resource; Be the real-time distributing radio resource of Cell Broadcast CB multicast service by described local resource distribution module at last.
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| CN107579974B (en) * | 2017-09-04 | 2019-09-17 | 武汉大学 | Towards the real-time request preprocess method of Radio Data System and capacity boost on demand |
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Assignee: BEIJING ZHONGKE JINGSHANG TECHNOLOGY Co.,Ltd. Assignor: Institute of Computing Technology, Chinese Academy of Sciences Contract record no.: 2011110000143 Denomination of invention: Method for radio resource allocation for broadcast multicast service Granted publication date: 20101208 License type: Exclusive License Open date: 20090708 Record date: 20110823 |
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Assignee: BEIJING SYLINCOM TECHNOLOGY CO.,LTD. Assignor: Institute of Computing Technology, Chinese Academy of Sciences Contract record no.: 2011110000143 Date of cancellation: 20181212 |
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Change date: 20181212 Contract record no.: 2011110000143 Assignee after: BEIJING SYLINCOM TECHNOLOGY CO.,LTD. Assignee before: BEIJING ZHONGKE JINGSHANG TECHNOLOGY Co.,Ltd. |
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