CN102448019A - Method for improving radio resource utilization rate in multimedia broadcast multicast service - Google Patents
Method for improving radio resource utilization rate in multimedia broadcast multicast service Download PDFInfo
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Abstract
The invention provides a method for improving the utilization rate of wireless resources in a Multimedia Broadcast Multicast Service (MBMS), which comprises the following steps: A. the network side sends a feedback service receiving state command to the user terminal aiming at an MBMS service issued by a broadcast multicast single frequency network (MBSFN) mode; B. the user terminal receiving the MBMS feeds back the service receiving state to the network side; C. the network side counts the user terminals which feed back the service receiving state, and obtains the number of users currently receiving the MBMS service; D. the network side compares the number of users with a preset threshold, and if the number of users is lower than the preset threshold, the network side deactivates the pushing mode of the MBSFN service of the MBMS service or switches to send the MBMS service in a unicast mode. By this method, the radio resources are utilized to the maximum extent.
Description
Technical field
The present invention relates to a kind of communication technology, relate in particular to a kind of method that in multimedia broadcast multi-broadcasting business (MBMS), improves wireless resource utility efficiency.
Background technology
Development along with the 3G (Third Generation) Moblie technology; 3G (Third Generation) Moblie can provide the service than the higher data rate of second generation mobile communication; Thereby support the multiple business form; Download, browse at a high speed services such as Internet network such as visual telephone, picture, wherein have one type of business features to be: this business can let wireless network give to subscribe to should business a plurality of users send simultaneously.Such as weather forecast, news film, the competitive sports collection of choice specimens or the like.The characteristics of utilizing these business to send simultaneously, 3-G (Generation Three mobile communication system) have been introduced MBMS from the R6 version professional.
In present evolved universal terrestrial radio access network (E-UTRAN) system, a broadcast multi-broadcasting Single Frequency Network (MBSFN) zone can be formed in several base stations, and is as shown in Figure 1.In this MBSFN zone, each base station synchronization uses identical resource with the MBSFN mode in specific MBSFN subframe, promptly puts the broadcast/group broadcast mode of multiple spot, provides identical MBMS business to user terminal.Illustrate, as shown in Figure 2, in the E-UTRAN system, radio frames of every 10ms; Wherein 2 shadow frames are used for transmitting the MBMS business; Be called the MBSFN subframe, other 8 blank frames are used for transmitting other business, are called normal frames; In practical application, can confirm the ratio of MBSFN subframe and common subframe as required, just illustrate here.When number of users was many, the E-UTRAN system adopted MBSFN service propelling mode effectively to economize on resources at present.Such as: supposing has 5 sub-districts in the MBSFN zone, A, B, C, D and E sub-district have 5,10,10,5 and 10 users respectively, then have 40 users.If with the mode of clean culture, promptly point-to-point provides, then need 40 Radio Resources; Yet if provide with the MBSFN mode, only need 5 Radio Resources, promptly each sub-district is one; In addition,, can effectively increase signal strength signal intensity, promote the professional transfer rate of MBMS because the base station in these 5 sub-districts is to send signal in the same manner.
When number of users was fewer, MBSFN service propelling mode then can be wasted resource.Such as: supposing has 5 sub-districts in the MBSFN zone, respectively there is a user A and B sub-district, do not have the user in C, D and the E sub-district, then always have two users.If the mode with clean culture provides, then only need 2 Radio Resources, C, D and E sub-district be not owing to there is the user need not transmit corresponding M BMS business; If provide with the MBSFN mode among the E-UTRAN, then need 5 Radio Resources, promptly each sub-district is one owing to provide with the MBSFN mode, even do not have the user in C, D and the E sub-district, also will be on corresponding resource transport service; And the MBSFN mode relates to the sequence of operations such as synchronous of base station, and this also can increase the complexity of system.
In present E-UTRAN system; Only design uni-directional mechanism to the MBMS business, promptly had only from the network to the terminal, and do not had the feedback mechanism of terminal to network; Therefore network can not obtain receiving in the sub-district the professional number of users of a certain MBMS; Thereby can not be according to the professional professional propelling movement mode of MBSFN of number of users deexcitation MBMS, or switch to the clean culture load mode and transmit this MBMS business to each user, and then utilize Radio Resource to greatest extent.
Summary of the invention
The purpose of this invention is to provide a kind of method that in the MBMS business, improves wireless resource utility efficiency, can utilize Radio Resource to greatest extent.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of method that in the MBMS business, improves wireless resource utility efficiency, this method comprises the steps:
A, network side send the professional accepting state order of feedback to a MBMS business that issues with the MBSFN trafficwise to user terminal;
B, receive the professional user terminal of this MBMS and feed back professional accepting state to network side;
C, network side are added up the user terminal that feeds back professional accepting state, obtain the current professional number of users of this MBMS that receiving;
D, network side compare said number of users and predetermined threshold, if be lower than this predetermined threshold, and the professional professional propelling movement mode of MBSFN of this MBMS of deexcitation then, or switch to mode of unicast and send this MBMS business.
Wherein, said steps A comprises:
A1, MBMS coordination entity (MCE) are to a MBMS business that issues with the MBSFN mode, and each cell base station initiates to require the professional accepting state of this MBMS of feedback to indicate in the MBSFN zone;
After indication is received in A2, each base station, in multicast control channel (MCCH), send the order that requires the professional accepting state of this MBMS of feedback to user terminal;
Said step B comprises:
B1, user terminal are periodically kept watch on MCCH;
B2, receive the professional user terminal of this MBMS, receive the professional accepting state order of said this MBMS of requirement feedback through MCCH after, receiving the professional information of this MBMS to base station feedback;
Said step C comprises:
C1, each base station are added up user terminal according to the professional information of this MBMS that receives that user terminal in this sub-district that receives feeds back, and obtain the current professional number of users of this MBMS that receiving in this sub-district and send to MCE;
C2, MCE receive the number of users of each base station feedback, calculate and receive the professional total number of users of this MBMS;
Said step D comprises:
Whether D1, MCE judges sum less than predetermined threshold, if total number of users less than predetermined threshold, execution in step D2 then, otherwise keep the professional MBSFN service propelling mode of this MBMS;
D2, MCE each cell base station in the MBSFN zone sends the professional MBSFN service propelling mode of this MBMS of deexcitation or switches to mode of unicast and sends the professional order of this MBMS;
The professional MBSFN service propelling mode of this MBMS of each cell base station deexcitation or switch to mode of unicast and send this MBMS business in D3, the MBSFN zone.
Calculating the method that receives the professional total number of users of this MBMS among the said step C2 is: to the number of users summation of each base station feedback.
The professional accepting state indication of steps A 1 described this MBMS of requirement feedback comprises: probability factor;
The steps A 2 described orders that in MCCH, require to feed back the professional accepting state of this MBMS to the user terminal transmission comprise: probability factor;
Step B2 is said further to be comprised before base station feedback is receiving the professional information of this MBMS: produce a random number; This random number is compared with probability factor; Less than probability factor; User terminal is receiving the professional information of this MBMS to base station feedback, otherwise continues execution in step B1;
Among the said step C1, obtain the current method that is receiving the professional number of users of this MBMS in this sub-district and be: the number of users that the base station is being received according to this MBMS business of user terminal feedback statistics is divided by probability factor.
The professional accepting state of steps A 1 described this MBMS of requirement feedback is designated as: require to be in the professional accepting state indication of this MBMS of user terminal feedback of RRC connection status;
The order of the professional accepting state of steps A 2 described these MBMS of requirement feedback is: require to be in the professional accepting state order of this MBMS of user terminal feedback of RRC connection status;
Among the said step B2, be that the user terminal that is in the RRC connection status is receiving the professional information of this MBMS to base station feedback.
Steps A 1 said requirement is in the professional accepting state indication of this MBMS of user terminal feedback of RRC connection status and comprises: RRC connection status probability factor;
The steps A 2 described orders that in MCCH, require to feed back the professional accepting state of this MBMS to the user terminal transmission comprise: RRC connection status probability factor;
Among the said step B2; The user terminal that is in the RRC connection status further comprised before base station feedback is receiving the professional information of this MBMS: produce a random number; Compare with RRC connection status probability factor; Receive the professional information of this MBMS less than RRC connection status probability factor user terminal to base station feedback, otherwise continuing execution in step B1;
Among the rapid C1 that improves, obtain the current method that is receiving the professional number of users of this MBMS in this sub-district and be: the number of users that the base station is being received according to this MBMS business of user terminal feedback statistics is divided by RRC connection status probability factor.
Among the said step D1,, total number of users comprises if less than predetermined threshold, taking a step forward at execution in step D2:
D11, MCE are to this MBMS business, and each cell base station initiates to require to be in the professional accepting state indication of this MBMS of user terminal feedback of RRC idle condition in the MBSFN zone;
After indication is received in D12, each base station, in MCCH, send to require to be in the order of the professional accepting state of this MBMS of user terminal feedback of RRC idle condition to user terminal;
D13, receive the professional user terminal that is in the RRC idle condition of this MBMS, receive the professional accepting state order of said this MBMS of requirement feedback through MCCH after, receiving the professional information of this MBMS to base station feedback;
The professional information of this MBMS that receives that feed back based on the user terminal that is in the RRC idle condition in this sub-district that receives D14, each base station; User terminal is added up, obtained the current professional number of users of this MBMS that receiving in this sub-district and send to MCE;
D15, MCE receive the number of users of each base station feedback, calculate and receive the professional total number of users of this MBMS;
Whether D16, MCE judges sum be less than predetermined threshold, if total number of users less than predetermined limit, is then carried out said step D2.
The said requirement of step D11 is in the professional accepting state indication of this MBMS of user terminal feedback of RRC idle condition and comprises: RRC idle condition probability factor;
The described order that in MCCH, send to require to be in the professional accepting state of this MBMS of user terminal feedback of RRC connection status to user terminal of step D12 comprises: RRC idle condition probability factor;
Among the said step D13;, base station feedback further comprises before receiving the professional information of this MBMS: produce a random number; Compare with RRC idle condition probability factor, less than RRC idle condition probability factor, user terminal is receiving the professional information of this MBMS to base station feedback;
Among the said step D14, obtain the current method that is receiving the professional user's of this MBMS number in this sub-district and be: the number of users that the base station is being received according to this MBMS business of terminal feedback statistics is divided by the probability factor of RRC idle condition;
Calculating the method that receives the professional total number of users of this MBMS among the said step D15 is: the total number of users of RRC connection status and the total number of users of RRC idle condition are sued for peace.
Requirement is in the professional accepting state indication of this MBMS of user terminal feedback of RRC idle condition;
The order of the professional accepting state of steps A 2 described these MBMS of requirement feedback is: require to be in the professional accepting state order of this MBMS of user terminal feedback of RRC idle condition;
Among the said step B2, be that the user terminal that is in the RRC idle condition is receiving the professional information of this MBMS to base station feedback.
Steps A 1 said requirement is in the professional accepting state indication of this MBMS of user terminal feedback of RRC idle condition and comprises: RRC idle condition probability factor;
The steps A 2 described orders that in MCCH, require to feed back the professional accepting state of this MBMS to the user terminal transmission comprise: RRC idle condition probability factor;
Among the said step B2; The user terminal that is in the RRC idle condition further comprised before base station feedback is receiving the professional information of this MBMS: produce a random number; Compare with RRC idle condition probability factor; Receive the professional information of this MBMS less than RRC idle condition probability factor user terminal to base station feedback, otherwise continuing execution in step B1;
Among the said step C1, obtain the current method that is receiving the professional number of users of this MBMS in this sub-district and be: the number of users that the base station is being received according to this MBMS business of user terminal feedback statistics is divided by RRC idle condition probability factor.
Among the said step D1,, total number of users comprises if less than predetermined threshold, taking a step forward at execution in step D2:
D11, MCE are to this MBMS business, and each cell base station initiates to require to be in the professional accepting state indication of this MBMS of user terminal feedback of RRC connection status in the MBSFN zone;
After indication is received in D12, each base station, in MCCH, send to require to be in the order of the professional accepting state of this MBMS of user terminal feedback of RRC connection status to user terminal;
D13, receive the professional user terminal that is in the RRC connection status of this MBMS, receive the professional accepting state order of said this MBMS of requirement feedback through MCCH after, receiving the professional information of this MBMS to base station feedback;
The professional information of this MBMS that receives that feed back based on the user terminal that is in the RRC connection status in this sub-district that receives D14, each base station; User terminal is added up, obtained the current professional number of users of this MBMS that receiving in this sub-district and send to MCE;
D15, MCE receive the number of users of each base station feedback, calculate and receive the professional total number of users of this MBMS;
Whether D16, MCE judges sum be less than predetermined threshold, if total number of users less than predetermined limit, is then carried out said step D2.
The said requirement of step D11 is in the professional accepting state indication of this MBMS of user terminal feedback of RRC connection status and comprises: RRC connection status probability factor;
The described order that in MCCH, send to require to be in the professional accepting state of this MBMS of user terminal feedback of RRC connection status to user terminal of step D12 comprises: RRC connection status probability factor;
Among the said step D13;, base station feedback further comprises before receiving the professional information of this MBMS: produce a random number; Compare with RRC connection status probability factor, receiving the professional information of this MBMS to base station feedback less than RRC connection status probability factor user terminal;
Among the said step D14, obtain the current method that is receiving the professional user's of this MBMS number in this sub-district and be: the number of users that the base station is being received according to this MBMS business of terminal feedback statistics is divided by the probability factor of RRC connection status;
Calculate the method that receives the professional total number of users of this MBMS among the rapid D15 that improves and be: the total number of users of RRC idle condition and the total number of users of RRC connection status are sued for peace.
Visible by technique scheme; The method of this raising wireless resource utility efficiency; Can be according to the professional professional propelling movement mode of MBSFN of number of users deexcitation MBMS, or switch to the clean culture load mode and transmit this MBMS business to each user, and then utilize Radio Resource to greatest extent.
Description of drawings
Fig. 1 is the MBSFN area schematic;
Fig. 2 is the sketch map of each service subframe method of salary distribution in the E-UTRAN system;
Fig. 3 coordinates the structural representation of each evolution base station (eNB) for MCE
Fig. 4 improves wireless resource utility efficiency method network side process chart for first embodiment of the invention;
Fig. 5 improves wireless resource utility efficiency method terminal processes flow chart for first embodiment of the invention;
Fig. 6 improves wireless resource utility efficiency method network side process chart for second embodiment of the invention;
Fig. 7 improves wireless resource utility efficiency method terminal processes flow chart for second embodiment of the invention;
Fig. 8 improves wireless resource utility efficiency method network side process chart for fourth embodiment of the invention;
Fig. 9 improves wireless resource utility efficiency method terminal processes flow chart for fourth embodiment of the invention.
Embodiment
For making the object of the invention, technological means and advantage clearer, the present invention is further detailed explanation below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 3, Fig. 3 coordinates the structural representation of each evolution base station (eNB) for MCE.Mobile management entity (MME) interrelates through M3 interface and MCE, is responsible for transmitting the MBMS session control signaling and gives MCE.MCE gets in touch through M2 interface and eNB, is responsible for further sending the MBMS session control signaling to eNB, and it also is responsible for coordinating the configuration of Radio Resource between each eNB of control simultaneously, and as which subframe is made as the MBSFN subframe, the base station also can feed back to MCE.MBMS gateway (MBMS GW) is got in touch through M1 interface and eNB, and it is responsible for the business datum of user plane is passed to eNB.
Basic thought of the present invention is: network side is to a MBMS business that issues with the MBSFN mode; Send the professional accepting state order of feedback to user terminal; Receiving the professional user terminal of this MBMS and feeding back professional accepting state to network side; Network side is added up the user terminal that feeds back professional accepting state, obtains the current professional number of users of this MBMS that receiving, and network side compares said number of users and predetermined threshold; If be lower than this predetermined threshold; The professional professional propelling movement mode of MBSFN of this MBMS of deexcitation then, or switch to mode of unicast and send this MBMS business, otherwise keep the professional MBSFN service propelling mode of this MBMS.
For convenience, no ambiguity, mention MBMS that will add up among the embodiment below when professional, all be called the professional A of MBMS.
Embodiment one:
In the present embodiment, improve wireless resource utility efficiency method implementation procedure and be divided into network side processing and user terminal processes, idiographic flow is referring to Fig. 4, Fig. 5.
Referring to Fig. 4, Fig. 4 improves wireless resource utility efficiency method network side process chart for first embodiment of the invention.This flow process comprises the steps:
Step 401, MCE each cell base station in the MBSFN zone initiates to require the indication of the professional A accepting state of feedback MBMS.
When MCE thinks that being necessary to add up the professional party A-subscriber of MBMS terminal receives situation, carry out this step.
Step 402 after indication is received in each base station, is sent the order that requires the professional A accepting state of feedback MBMS in MCCH.
After giving an order in the base station, wait for the user terminal feedback.
Step 403, each base station receive the information that the user terminal feedback is receiving the professional A of MBMS, add up the number of users Nn that is receiving the professional A of MBMS according to feedback, and the Nn that counts is sent to MCE.
N is the order label of each base station in this step, and n is a natural number.
N＝N1+N2+......Nn。
Predetermined threshold T in this step decision content that to be manufacturer or operator be provided with according to equipment and practical situations.
Step 408 is kept the MBSFN service propelling mode of the professional A of MBMS.
As N during greater than predetermined threshold T, think that the number of users that receives the professional A of MBMS this moment is a lot, therefore keep the MBSFN service propelling mode of the professional A of MBMS.
Referring to Fig. 5, Fig. 5 improves wireless resource utility efficiency method user terminal processes flow chart for first embodiment of the invention.This flow process comprises the steps:
Step 501 is periodically kept watch on each base station MCCH.
Step 502 is receiving the user terminal of the professional A of MBMS, receives when requiring the professional A accepting state order of feedback MBMS through MCCH, and execution in step 503, otherwise carry out 501.
So far; Present embodiment finishes; If when MCE each cell base station in the MBSFN zone initiates to require the indication of the professional A accepting state of feedback MBMS, probability factor is provided simultaneously, after indication is received in each base station so; In MCCH, send requirement and feed back the order that the professional A of MBMS carries the receipts state, probability factor is provided.Receiving the user terminal of the professional A of MBMS, when receiving the order of requirement feedback MBMS business A accepting state, producing a random number, if this random number less than probability factor, is then receiving the information of the professional A of MBMS to base station feedback through MCCH.Each base station receives the information that the user terminal feedback is receiving the professional A of MBMS; Receiving the number of users Nn of the professional A of MBMS according to feedback information statistics, calculating; The Nn=Mn/ probability factor; Wherein Mn adds up the number of users that the professional A of MBMS is receiving for each base station according to the user terminal feedback, and n is a natural number, is each base station serial number.The Nn that calculates is sent to MCE.MCE calculates the total number of users N that user terminal is receiving the professional A of MBMS.
Embodiment two:
In the present embodiment, through the statistics to the professional A accepting state of MBMS of the user terminal that is in the RRC connection status, improve wireless resource utility efficiency method implementation procedure and be divided into network side and handle and user terminal processes, idiographic flow is referring to Fig. 6, Fig. 7.
Referring to Fig. 6, Fig. 6 improves wireless resource utility efficiency method network side process chart for second embodiment of the invention.This flow process comprises the steps:
Step 602 after indication is received in each base station, is sent the order that requires the professional A accepting state of feedback MBMS in MCCH, indicate present stage for the RRC connection status statistics stage simultaneously, and RRC connection status probability factor is provided.
603, each base station receives the information that the user terminal feedback is receiving the professional A of MBMS, adds up, calculates the number of users Nn that is receiving the professional A of MBMS according to feedback information, and the Nn that calculates is sent to MCE.
Nn=Mn/RRC connection status probability factor, wherein Mn adds up the number of users that the professional A of MBMS is receiving for each base station according to the user terminal feedback.
N is the order label of each base station in this step, and n is a natural number.
Step 404 is the same with step among the embodiment one to step 408, here repeats no more.
Referring to Fig. 7, Fig. 7 improves wireless resource utility efficiency method user terminal processes flow chart for second embodiment of the invention.This flow process comprises the steps:
Step 701 is periodically kept watch on base station MCCH.
Step 702 is in the RRC connection status, is receiving the user terminal of the professional A of MBMS, when receiving the order of requirement feedback MBMS business A accepting state through MCCH, and execution in step 703, otherwise carry out 701.
Step 703 produces a random number, judges that whether this random number is less than the connection status probability factor.Less than the connection status probability factor, execution in step 704, otherwise execution in step 701.
Step 704 is receiving the information of the professional A of MBMS to base station feedback.
Embodiment three:
Present embodiment is the statistics to the professional A accepting state of MBMS of the user terminal that is in the RRC idle condition; To compare statistic behavior different with embodiment two because user terminal RRC state is in idle condition, therefore when user terminal when each base station feedback is receiving the information of MBMS business A; Earlier transfer the RRC connection status to by the RRC idle condition; Its method realization flow is the same, therefore, no longer details.
Embodiment four:
Present embodiment is earlier the RRC connection status to be added up, and when the number of users of statistics transfers to during less than predetermined threshold the RRC idle condition is added up.This embodiment is divided into network side to be handled and user terminal processes, and idiographic flow is referring to Fig. 8, Fig. 9.
Referring to Fig. 8, Fig. 8 improves wireless resource utility efficiency method network side process chart for fourth embodiment of the invention.This flow process comprises the steps:
Step 602 after indication is received in each base station, is sent the order that requires the professional A accepting state of feedback MBMS in MCCH, indicate present stage for the RRC connection status statistics stage simultaneously, and RRC connection status probability factor is provided.
Nn=Mn/RRC connection status probability factor, wherein n is the order label of each base station, n is a natural number.
N=N1+N2+......Nn, n are natural number.
Step 801 starts the RRC idle condition, and MCE each cell base station in the MBSFN zone initiates to require the professional A accepting state indication of feedback MBMS, and the situation when indication simultaneously requires statistics RRC to be in idle condition provides RRC idle condition probability factor.
Step 802 after indication is received in each base station, is sent the order that requires the professional A accepting state of feedback MBMS in MCCH, indicate present stage for the RRC idle condition statistics stage simultaneously, and RRC idle condition probability factor is provided.
Kn=Wn/RRC idle condition probability factor, wherein n is the order label of each base station, n is a natural number.
K=N+K1+K2+......+Nn, n are natural number, and wherein N is the total number of users that receives the professional A of MBMS of adding up under the RRC connection status, and K is the total number of users that receives the professional A of MBMS of adding up under RRC connection status and the idle condition.
Step 808 is kept the MBSFN service propelling mode of the professional A of MBMS.
The user terminal processes of present embodiment is divided into RRC connection status statistics and RRC idle condition statistics, referring to Fig. 6, Fig. 9.
Fig. 6 describes in detail in embodiment two, repeats no more here.Referring to Fig. 9, Fig. 9 is for improving wireless resource utility efficiency method user terminal processes flow chart for fourth embodiment of the invention.This flow process comprises the steps:
Step 901 is periodically kept watch on base station MCCH.
Step 902 is in the RRC idle condition, receives the user terminal of the professional A of MBMS, receives when requiring the professional A accepting state order of feedback MBMS through MCCH, and execution in step 903, otherwise carry out 901.
Step 903 produces a random number, judges that whether this random number is less than the idle condition probability factor.Less than the idle condition probability factor, execution in step 904, otherwise execution in step 901.
Embodiment five:
Present embodiment is added up the RRC idle condition earlier, and the number of users of statistics is added up the RRC connection status during less than predetermined threshold again.Implementation is the same with embodiment four, repeats no more.
In actual applications, the RRC idle condition is added up consuming time relatively, and cause the access at random of network congested easily, so general earlier the RRC connection status statistics.Therefore embodiment two compares the number of users that embodiment three and five can more effective statistics receiving the professional A of MBMS, better realization raising utilization ratio of wireless resources with four.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (12)
1. a method that in multimedia broadcast multi-broadcasting business (MBMS), improves wireless resource utility efficiency is characterized in that this method comprises the steps:
A, network side send the professional accepting state order of feedback to a MBMS business that issues with broadcast multi-broadcasting Single Frequency Network (MBSFN) mode to user terminal;
B, receive the professional user terminal of this MBMS and feed back professional accepting state to network side;
C, network side are added up the user terminal that feeds back professional accepting state, obtain the current professional number of users of this MBMS that receiving;
D, network side compare said number of users and predetermined threshold, if be lower than this predetermined threshold, and the professional professional propelling movement mode of MBSFN of this MBMS of deexcitation then, or switch to mode of unicast and send this MBMS business.
2. the method for claim 1, it is characterized in that: said steps A comprises:
A1, MBMS coordination entity (MCE) are to a MBMS business that issues with the MBSFN mode, and each cell base station initiates to require the professional accepting state of this MBMS of feedback to indicate in the MBSFN zone;
After indication is received in A2, each base station, in multicast control channel (MCCH), send the order that requires the professional accepting state of this MBMS of feedback to user terminal;
Said step B comprises:
B1, user terminal are periodically kept watch on MCCH;
B2, receive the professional user terminal of this MBMS, receive the professional accepting state order of said this MBMS of requirement feedback through MCCH after, receiving the professional information of this MBMS to base station feedback;
Said step C comprises:
C1, each base station are added up user terminal according to the professional information of this MBMS that receives that user terminal in this sub-district that receives feeds back, and obtain the current professional number of users of this MBMS that receiving in this sub-district and send to MCE;
C2, MCE receive the number of users of each base station feedback, calculate and receive the professional total number of users of this MBMS;
Said step D comprises:
Whether D1, MCE judges sum less than predetermined threshold, if total number of users less than predetermined threshold, execution in step D2 then, otherwise keep the professional MBSFN service propelling mode of this MBMS;
D2, MCE each cell base station in the MBSFN zone sends the professional MBSFN service propelling mode of this MBMS of deexcitation or switches to mode of unicast and sends the professional order of this MBMS;
The professional MBSFN service propelling mode of this MBMS of each cell base station deexcitation or switch to mode of unicast and send this MBMS business in D3, the MBSFN zone.
3. method as claimed in claim 2 is characterized in that, calculates the method that receives the professional total number of users of this MBMS among the said step C2 to be: to the number of users summation of each base station feedback.
4. method as claimed in claim 3 is characterized in that: the professional accepting state indication of steps A 1 described this MBMS of requirement feedback comprises: probability factor;
The steps A 2 described orders that in MCCH, require to feed back the professional accepting state of this MBMS to the user terminal transmission comprise: probability factor;
Step B2 is said further to be comprised before base station feedback is receiving the professional information of this MBMS: produce a random number; This random number is compared with probability factor; Less than probability factor; User terminal is receiving the professional information of this MBMS to base station feedback, otherwise continues execution in step B1;
Among the said step C1, obtain the current method that is receiving the professional number of users of this MBMS in this sub-district and be: the number of users that the base station is being received according to this MBMS business of user terminal feedback statistics is divided by probability factor.
5. method as claimed in claim 3 is characterized in that, the professional accepting state of steps A 1 described this MBMS of requirement feedback is designated as: require to be in the professional accepting state indication of this MBMS of user terminal feedback of Radio Resource control (RRC) connection status;
The order of the professional accepting state of steps A 2 described these MBMS of requirement feedback is: require to be in the professional accepting state order of this MBMS of user terminal feedback of RRC connection status;
Among the said step B2, be that the user terminal that is in the RRC connection status is receiving the professional information of this MBMS to base station feedback.
6. method as claimed in claim 5 is characterized in that: steps A 1 said requirement is in the professional accepting state indication of this MBMS of user terminal feedback of RRC connection status and comprises: RRC connection status probability factor;
The steps A 2 described orders that in MCCH, require to feed back the professional accepting state of this MBMS to the user terminal transmission comprise: RRC connection status probability factor;
Among the said step B2; The user terminal that is in the RRC connection status further comprised before base station feedback is receiving the professional information of this MBMS: produce a random number; Compare with RRC connection status probability factor; Receive the professional information of this MBMS less than RRC connection status probability factor user terminal to base station feedback, otherwise continuing execution in step B1;
Among the said step C1, obtain the current method that is receiving the professional number of users of this MBMS in this sub-district and be: the number of users that the base station is being received according to this MBMS business of user terminal feedback statistics is divided by RRC connection status probability factor.
7. method as claimed in claim 6 is characterized in that: among the said step D1, if total number of users less than predetermined threshold, takes a step forward at execution in step D2 comprise:
D11, MCE are to this MBMS business, and each cell base station initiates to require to be in the professional accepting state indication of this MBMS of user terminal feedback of RRC idle condition in the MBSFN zone;
After indication is received in D12, each base station, in MCCH, send to require to be in the order of the professional accepting state of this MBMS of user terminal feedback of RRC idle condition to user terminal;
D13, receive the professional user terminal that is in the RRC idle condition of this MBMS, receive the professional accepting state order of said this MBMS of requirement feedback through MCCH after, receiving the professional information of this MBMS to base station feedback;
The professional information of this MBMS that receives that feed back based on the user terminal that is in the RRC idle condition in this sub-district that receives D14, each base station; User terminal is added up, obtained the current professional number of users of this MBMS that receiving in this sub-district and send to MCE;
D15, MCE receive the number of users of each base station feedback, calculate and receive the professional total number of users of this MBMS;
Whether D16, MCE judges sum be less than predetermined threshold, if total number of users less than predetermined limit, is then carried out said step D2.
8. method as claimed in claim 7 is characterized in that: the said requirement of step D11 is in the professional accepting state indication of this MBMS of user terminal feedback of RRC idle condition and comprises: RRC idle condition probability factor;
The described order that in MCCH, send to require to be in the professional accepting state of this MBMS of user terminal feedback of RRC idle condition to user terminal of step D12 comprises: RRC idle condition probability factor;
Among the said step D13;, base station feedback further comprises before receiving the professional information of this MBMS: produce a random number; Compare with RRC idle condition probability factor, less than RRC idle condition probability factor, user terminal is receiving the professional information of this MBMS to base station feedback;
Among the said step D14, obtain the current method that is receiving the professional user's of this MBMS number in this sub-district and be: the number of users that the base station is being received according to this MBMS business of terminal feedback statistics is divided by the probability factor of RRC idle condition;
Calculating the method that receives the professional total number of users of this MBMS among the said step D15 is: the total number of users of RRC connection status and the total number of users of RRC idle condition are sued for peace.
9. method as claimed in claim 3 is characterized in that, the professional accepting state of steps A 1 described this MBMS of requirement feedback is designated as: require to be in the professional accepting state indication of this MBMS of user terminal feedback of RRC idle condition;
The order of the professional accepting state of steps A 2 described these MBMS of requirement feedback is: require to be in the professional accepting state order of this MBMS of user terminal feedback of RRC idle condition;
Among the said step B2, be that the user terminal that is in the RRC idle condition is receiving the professional information of this MBMS to base station feedback.
10. method as claimed in claim 9 is characterized in that, steps A 1 said requirement is in the professional accepting state indication of this MBMS of user terminal feedback of RRC idle condition and comprises: RRC idle condition probability factor;
The steps A 2 described orders that in MCCH, require to feed back the professional accepting state of this MBMS to the user terminal transmission comprise: RRC idle condition probability factor;
Among the said step B2; The user terminal that is in the RRC idle condition further comprised before base station feedback is receiving the professional information of this MBMS: produce a random number; Compare with RRC idle condition probability factor; Receive the professional information of this MBMS less than RRC idle condition probability factor user terminal to base station feedback, otherwise continuing execution in step B1;
Among the said step C1, obtain the current method that is receiving the professional number of users of this MBMS in this sub-district and be: the number of users that the base station is being received according to this MBMS business of user terminal feedback statistics is divided by RRC idle condition probability factor.
11. method as claimed in claim 10 is characterized in that: among the said step D1, comprise if total number of users less than predetermined threshold, takes a step forward at execution in step D2:
D11, MCE are to this MBMS business, and each cell base station initiates to require to be in the professional accepting state indication of this MBMS of user terminal feedback of RRC connection status in the MBSFN zone;
After indication is received in D12, each base station, in MCCH, send to require to be in the order of the professional accepting state of this MBMS of user terminal feedback of RRC connection status to user terminal;
D13, receive the professional user terminal that is in the RRC connection status of this MBMS, receive the professional accepting state order of said this MBMS of requirement feedback through MCCH after, receiving the professional information of this MBMS to base station feedback;
The professional information of this MBMS that receives that feed back based on the user terminal that is in the RRC connection status in this sub-district that receives D14, each base station; User terminal is added up, obtained the current professional number of users of this MBMS that receiving in this sub-district and send to MCE;
D15, MCE receive the number of users of each base station feedback, calculate and receive the professional total number of users of this MBMS;
Whether D16, MCE judges sum be less than predetermined threshold, if total number of users less than predetermined limit, is then carried out said step D2.
12. method as claimed in claim 11 is characterized in that: the said requirement of step D11 is in the professional accepting state indication of this MBMS of user terminal feedback of RRC connection status and comprises: RRC connection status probability factor;
The described order that in MCCH, send to require to be in the professional accepting state of this MBMS of user terminal feedback of RRC connection status to user terminal of step D12 comprises: RRC connection status probability factor;
Among the said step D13;, base station feedback further comprises before receiving the professional information of this MBMS: produce a random number; Compare with RRC connection status probability factor, receiving the professional information of this MBMS to base station feedback less than RRC connection status probability factor user terminal;
Among the said step D14, obtain the current method that is receiving the professional user's of this MBMS number in this sub-district and be: the number of users that the base station is being received according to this MBMS business of terminal feedback statistics is divided by the probability factor of RRC connection status;
Calculating the method that receives the professional total number of users of this MBMS among the said step D15 is: the total number of users of RRC idle condition and the total number of users of RRC connection status are sued for peace.
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