CN103607595A - Time window based unicast and multicast mixing transmission method and apparatus - Google Patents

Time window based unicast and multicast mixing transmission method and apparatus Download PDF

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CN103607595A
CN103607595A CN201310551966.XA CN201310551966A CN103607595A CN 103607595 A CN103607595 A CN 103607595A CN 201310551966 A CN201310551966 A CN 201310551966A CN 103607595 A CN103607595 A CN 103607595A
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business datum
transmission
terminal equipment
base station
mode
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张兴
黄宇
张佳鑫
杨坤
王文博
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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Abstract

The invention discloses a time window based unicast and multicast mixing transmission method and apparatus. The method comprises: when multiple terminal devices request the same service data sequentially, for a terminal device which is the first to request the service data in a specific time window, a base station device transmits the service data in a broadcast mode; and for other terminal devices which are the second to request the service data or subsequently requests the service data in the specific time window, the base station device continues to transmit service data which is not transmitted to the terminal device first requesting the service data currently in a broadcast mode, and transmits the service data which is already transmitted to the terminal device first requesting the service data currently to the terminal device currently requesting the service data in a unicast mode. According to the embodiments of the invention, distribution of transmission bandwidth for each terminal device can be avoided, and the system bandwidth is saved.

Description

Clean culture based on time window and multicast combining transmission method and equipment
Technical field
The present invention relates to communication technical field, especially related to a kind of clean culture and multicast combining transmission method and equipment based on time window.
Background technology
In recent years, cordless communication network scale and traffic carrying capacity are all quick explosive increase situation.International Telecommunication Association's latest data demonstration, by the end of the year 2010, global terminal user has reached 5,300,000,000, and wherein 9.4 hundred million is the above broadband user of 3G.Along with information industry and industrial application further combined with, and the arrival in Internet of Things epoch, communication service demand will increase substantially, networking scale also will continue to expand.Data with existing demonstration, along with popularizing of intelligent multimedia terminal equipment, the demand that expects mobile service in 2015 will reach current 100-1000 times, and wherein mobile video business will account for 2/3 of total business volume.
In prior art, when a plurality of terminal equipments are successively asked same video data, base station equipment need to be respectively each terminal equipment allocation of transmission bandwidth, and to each terminal equipment, sends video data respectively with mode of unicast, thereby cause a large amount of transmissions of video data, and wasted system bandwidth.
Summary of the invention
The embodiment of the present invention provides a kind of clean culture and multicast combining transmission method and equipment based on time window, take and avoids, as each terminal equipment allocation of transmission bandwidth, having saved system bandwidth.
In order to achieve the above object, the embodiment of the present invention provides a kind of clean culture and multicast combining transmission method based on time window, is applied to comprise that in the network of base station equipment and a plurality of terminal equipments, described method at least comprises the following steps:
When a plurality of terminal equipments are successively asked same business datum, in window at the appointed time, first asks the terminal equipment of described business datum, and base station equipment is transmitted described business datum with broadcast mode;
Terminal equipment for second and the follow-up described business datum of request in window at the appointed time, described base station equipment continues with the current business datum of not asking the terminal equipment of described business datum transmit to first of broadcast mode transmission, and to the terminal equipment of business datum described in current request, transmits current business datum of having asked the terminal equipment of described business datum to transmit to first with mode of unicast.
Described base station equipment is transmitted the process of described business datum with broadcast mode, specifically comprise:
Described base station equipment utilizes system bandwidth in fixed time window, first asks the terminal equipment allocation of transmission bandwidth of described business datum, by described transmission bandwidth, with broadcast mode, transmits described business datum.
Described base station equipment continues with the current business datum of not asking the terminal equipment of described business datum to transmit to first of broadcast mode transmission, and with mode of unicast to the current process of having asked to first business datum that terminal equipment of described business datum transmitted of the terminal equipment transmission of business datum described in current request, specifically comprise:
Described base station equipment is utilized the business datum allocation of transmission bandwidth of system bandwidth for transmitting with broadcast mode in fixed time window, and is the business datum allocation of transmission bandwidth of transmitting with mode of unicast in fixed time window; Wherein, the transmission bandwidth being distributed with the business datum of broadcast mode transmission and the transmission bandwidth sum of being distributed with the business datum of mode of unicast transmission are not more than described system bandwidth;
Described base station equipment is based on the described transmission bandwidth being distributed with the business datum of broadcast mode transmission, with the current business datum of not asking the terminal equipment of described business datum to transmit to first of broadcast mode transmission; And, the transmission bandwidth that described base station equipment is distributed based on the described business datum of transmitting with mode of unicast, the current business datum of having asked the terminal equipment of described business datum to transmit to first of terminal equipment transmission with mode of unicast to business datum described in current request.
Described base station equipment is current after first asks business datum that the terminal equipment of described business datum transmitted to the terminal equipment transmission of business datum described in current request with mode of unicast, and described method also comprises:
After the business datum of transmit at the current terminal equipment of asking described business datum to first of the terminal equipment transmission to business datum described in current request completes, it is the interior business datum allocation of transmission bandwidth of transmitting with broadcast mode of fixed time window again that described base station equipment is utilized described system bandwidth.
Described business datum is specially video data.
The embodiment of the present invention provides a kind of base station equipment, and described base station equipment specifically comprises:
The first transport module, for when a plurality of terminal equipments are successively asked same business datum, for the terminal equipment of first requested service data in window at the appointed time, with broadcast mode service data transmission;
The second transport module, for the terminal equipment for second and follow-up requested service data in window at the appointed time, continuation is transmitted current business datum of not asking the terminal equipment of described business datum to transmit to first with broadcast mode, the current business datum of having asked the terminal equipment of described business datum to transmit to first of terminal equipment transmission with mode of unicast to business datum described in current request.
Described the first transport module, specifically for utilizing system bandwidth in fixed time window, first asks the terminal equipment allocation of transmission bandwidth of described business datum, and transmits described business datum by described transmission bandwidth with broadcast mode.
Described the second transport module specifically for utilizing the business datum allocation of transmission bandwidth of system bandwidth for transmitting with broadcast mode in fixed time window, and is the business datum allocation of transmission bandwidth of transmitting with mode of unicast in fixed time window; Wherein, the transmission bandwidth being distributed with the business datum of broadcast mode transmission and the transmission bandwidth sum of being distributed with the business datum of mode of unicast transmission are not more than described system bandwidth; Based on the described transmission bandwidth being distributed with the business datum of broadcast mode transmission, with the current business datum of not asking the terminal equipment of described business datum to transmit to first of broadcast mode transmission; And, based on the described transmission bandwidth being distributed with the business datum of mode of unicast transmission, the current business datum of having asked the terminal equipment of described business datum to transmit to first of terminal equipment transmission with mode of unicast to business datum described in current request.
Described the second transport module, also for the terminal equipment transmission to business datum described in current request is current, to first, ask after business datum that the terminal equipment of described business datum transmit completes, utilizing described system bandwidth is the interior business datum allocation of transmission bandwidth of transmitting with broadcast mode of fixed time window again.
Described business datum is specially video data.
Compared with prior art, the embodiment of the present invention at least has the following advantages: in the embodiment of the present invention, when a plurality of terminal equipments are successively asked same video data, for the terminal equipment of first request video data in window at the appointed time, with broadcast mode transmitting video data; Terminal equipment for second and follow-up request video data in window at the appointed time, with the current business datum of transmit to the terminal equipment of first request video data of broadcast mode transmission, and to the terminal equipment of current request video data, transmit current business datum of having asked the terminal equipment of video data to transmit to first with mode of unicast.Aforesaid way can be avoided, into each terminal equipment allocation of transmission bandwidth, having saved system bandwidth.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of clean culture and multicast combining transmission method schematic flow sheet based on time window that the embodiment of the present invention one provides;
Fig. 2 and Fig. 3 are the application schematic diagrames that sends video data in the embodiment of the present invention one;
Fig. 4 is the structural representation of a kind of base station equipment of providing of the embodiment of the present invention two.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
For problems of the prior art, the embodiment of the present invention one provides a kind of clean culture and multicast combining transmission method based on time window, be applied to comprise in the network of base station equipment and a plurality of terminal equipments, for the business demand of user group's behavior, set up respectively the service mechanism of high energy efficiency, take and avoid as each terminal equipment allocation of transmission bandwidth, save system bandwidth.As shown in Figure 1, the method comprises the following steps:
Step 101, when a plurality of terminal equipments are successively asked same business datum, for the terminal equipment of first requested service data in window at the appointed time, base station equipment is with broadcast mode service data transmission.
Step 102, terminal equipment for second and follow-up requested service data in window at the appointed time, base station equipment continues with the current business datum of transmit to the terminal equipment of first requested service data of broadcast mode transmission, and to the terminal equipment of current request business datum, transmits the current business datum of having transmitted to the terminal equipment of first requested service data with mode of unicast.
In the embodiment of the present invention, this business datum is specifically as follows video data.Based on this, for a plurality of terminal equipments of the same video data of a plurality of requests, in window at the appointed time, first asks the terminal equipment of this video data, and base station equipment is transmitted this video data with broadcast mode.Terminal equipment for second and follow-up this video data of request in window at the appointed time, base station equipment continues with the current video data of not asking the terminal equipment of this video data transmit to first of broadcast mode transmission, and to the terminal equipment of this video data of current request, transmits current video data of having asked the terminal equipment of this video data to transmit to first with mode of unicast.Like this, after the video data transmitting at the current terminal equipment of asking this video data to first of the terminal equipment transmission to this video data of current request completes, the terminal equipment of second and follow-up this video data of request will ask the terminal equipment of this video data the same with first, with broadcast mode, receive the video data from base station equipment, and can receive the complete video data from base station equipment, thereby guarantee that user's business does not have time delay, reaches the object of saving energy and saving system bandwidth in the situation that realize.
In the embodiment of the present invention, base station equipment is with the process of broadcast mode service data transmission, specifically comprise: base station equipment utilizes system bandwidth for the terminal equipment allocation of transmission bandwidth of first requested service data in fixed time window, and pass through this transmission bandwidth with broadcast mode service data transmission.For example, base station equipment is all distributed to system bandwidth the terminal equipment of first request video data in fixed time window.
In the embodiment of the present invention, base station equipment continues with the current business datum of not transmitting to the terminal equipment of first requested service data of broadcast mode transmission, and with mode of unicast to the current business datum of having transmitted to the terminal equipment of first requested service data of the terminal equipment transmission of current request business datum, specifically comprise: base station equipment is utilized the business datum allocation of transmission bandwidth of system bandwidth for transmitting with broadcast mode in fixed time window, and be the business datum allocation of transmission bandwidth of transmitting with mode of unicast in fixed time window; The transmission bandwidth being distributed with the business datum of broadcast mode transmission and the transmission bandwidth sum of being distributed with the business datum of mode of unicast transmission are not more than system bandwidth; The transmission bandwidth of base station equipment based on being distributed with the business datum of broadcast mode transmission, with the current business datum of not transmitting to the terminal equipment of first requested service data of broadcast mode transmission; The transmission bandwidth of base station equipment based on being distributed with the business datum of mode of unicast transmission, with mode of unicast to the current business datum of having transmitted to the terminal equipment of first requested service data of the terminal equipment transmission of current request business datum.
For example, when at the appointed time having 3 terminal equipment request video datas in window, base station equipment is distributed to the video data with broadcast mode transmission by 1/3 system bandwidth, now base station equipment is with the current video data transmit to the terminal equipment of first request video data of broadcast mode transmission, and the video data that all can As-received station equipment transmits with broadcast mode of 3 terminal equipments.Terminal equipment for second request video data, base station equipment is distributed to the video data with mode of unicast transmission by 1/3 system bandwidth, now base station equipment with mode of unicast to the current video data having transmitted to the terminal equipment of first request video data of second terminal equipment transmission of current request video data.Terminal equipment for the 3rd request video data, base station equipment is distributed to the video data with mode of unicast transmission by 1/3 system bandwidth, now base station equipment with mode of unicast to the current video data having transmitted to the terminal equipment of first request video data of the 3rd terminal equipment transmission of current request video data.
In the embodiment of the present invention, base station equipment is current after the business datum that the terminal equipment of first requested service data transmitted to the terminal equipment transmission of current request business datum with mode of unicast, after the current business datum of transmit to the terminal equipment of first requested service data of the terminal equipment transmission to current request business datum completes, it is the interior business datum allocation of transmission bandwidth of transmitting with broadcast mode of fixed time window again that this base station equipment can also be utilized system bandwidth.
For example, at the appointed time in window, have 3 terminal equipment request video datas, base station equipment is distributed to the video data with broadcast mode transmission by 1/3 system bandwidth, terminal equipment for second request video data, base station equipment is distributed to the video data with mode of unicast transmission by 1/3 system bandwidth, terminal equipment for the 3rd request video data, base station equipment is distributed to the video data with mode of unicast transmission by 1/3 system bandwidth, on this basis, suppose that second terminal equipment transmitting video data to current request video data completes with mode of unicast, and the 3rd the terminal equipment transmitting video data with mode of unicast to current request video data completes, base station equipment can also be utilized the system bandwidth video data allocation of transmission bandwidth for transmitting with broadcast mode in fixed time window again, as base station equipment is further all distributed to system bandwidth the video data transmitting with broadcast mode in fixed time window.
Below in conjunction with the application schematic diagram shown in Fig. 2 and Fig. 3, said process is further elaborated.
Under this application scenarios, when a plurality of terminal equipments are successively asked same video, base station equipment is for the terminal equipment of first request in time window, according to active user's number assignment bandwidth, carry out broadcasting transmitting, then for the terminal equipment of asking afterwards, base station equipment is according to active user's number assignment bandwidth, and with the head part of mode of unicast transmitting video-frequency flow, this terminal equipment receives base station equipment with the data of broadcast mode transmission simultaneously, after the transfer of data of the head part of video flowing completes, two terminal equipments all adopt broadcast.In aforesaid way, first base station equipment is that data (broadcast) are shared in the terminal equipment transmission arriving at first, then the terminal equipment arriving afterwards also receives this shared data (broadcast), and the rear terminal equipment arriving receives supplemental data (data that lack because the time of advent is poor) simultaneously, therefore, all terminal equipments can receive the data of request at once in the moment arriving, therefore can guarantee the real-time of business.
Further, because the variation of length of window can cause the number of users of broadcast, clean culture, all changing, therefore allocated bandwidth can make full use of bandwidth flexibly, and efficiency is higher.In addition, no matter number of users is how many, and due to allocated bandwidth flexibly, base station equipment can not refused, and really accomplishes the real-time Transmission that need not wait for, guarantees the QoS(Quality of Service of real time business, service quality).
Suppose that user 0 constantly asks transmission of video zero, its broadcasting speed is r 0, transmission speed is r m, definition v[0, τ] and be video v from 0 to τ data.And at the identical transmission of video of τ user's 1 request constantly, in order to make up the gap data v[τ with user 0], suppose need to be after time T and user 0 to reach data synchronous, user 1 needs extra reception and user's 0 supplementary data, base station equipment sends to user 1 by first user data cached, meanwhile, user 1 also receives user 0 data.Wherein, the transmission speed of augmenting stream energy minimum is also
Figure BDA0000410162350000081
the transmission time of augmenting stream is τ 1, energy consumption is E 1(r 0, τ 1).
Further, user 1 buffer memory service condition: at τ 1< t < τ 1+ T, supplementary data does not finish receiving, B=(r p-r 0+ r m) (t-τ); τ 1+ T < t < | v|, supplementary data finishes receiving, B=(r m-r 0) (t-τ 1+ T)+r pt.Visible, if r m=r 0, user 1 is at 2 τ 1constantly reach buffer memory maximum B max=r pt=v[0, τ 1], remain unchanged subsequently.
Further, suppose at τ 1+ τ 2the identical transmission of video of constantly user's 2 request, the condition that now user 1 also augments stream in transmission is τ 2< τ 1if, τ 2>=τ 1, user 1 the stream of augmenting is transmitted.Situation 1: τ 2>=τ 1, user 1 the stream of augmenting is transmitted, so user 2 can only receive user 0 data.In order to make up the gap data v[0 with user 2 and user 0, τ 1+ τ 2], user 2 needs extra supplementary data v[0, the τ of receiving 1+ τ 2], consumed energy is E (r 0, τ 1+ τ 2), user 2 is at 2 (τ 1+ τ 2) constantly reach buffer memory maximum B max=v[0, τ 1+ τ 2], remain unchanged subsequently.Situation 2: τ 2< τ 1, obviously, the minimum mode of energy is that user receives the data v[τ that base station equipment is being transmitted to user 0 and user 1 simultaneously 1+ τ 2, | v|], and the base station equipment supplementary data v[τ that transmitting to user 1 2, τ 1], and additionally receive supplementary data v[0, τ 2] and v[τ 1, τ 1+ τ 2], the transmitting energy of augmenting stream is E 2(r 0, min (τ 1, τ 2)+τ 2).
Further, user 2 will obtain supplemental data from user 0: τ 1+ τ 2< | v|, the condition that at this moment user 0 also augments stream in transmission is that consumed energy is E (r 0, τ 3), conserve energy E (r 0, | v|-(τ 1+ τ 2)).User 2 will obtain supplemental data from user 1: τ 2< τ 1, the condition that at this moment user 1 also augments stream in transmission is that consumed energy is E 2(r 0, τ 2), conserve energy E (r 0, τ 12).τ 1+ τ 2< t < τ 1+ τ 2+ τ 12, user's inbound pacing is 3r 0, broadcasting speed is r 0, supplementary data does not finish receiving, B=2r 0(t-τ 12), buffer memory maximum B max=2r 012),
Figure BDA0000410162350000082
supplementary data finishes receiving, buffer memory maximum B max=r 01+ τ 2).
At τ 1+ τ 2+ τ 3the identical transmission of video of user's 3 request constantly, user 3 will obtain supplemental data from user 0: τ 1+ τ 2+ τ 3< | v|, the condition that user 0 also augments stream in transmission is that consumed energy is E (r 0, τ 3), conserve energy E (r 0, | v|-(τ 1+ τ 2+ τ 3)).User 3 will obtain supplemental data from user 1: τ 2+ τ 3< τ 1, the condition that at this moment user 1 also augments stream in transmission is that consumed energy is E (r 0, τ 3), conserve energy E (r 0, τ 1-(τ 2+ τ 3)).User 3 will obtain supplemental data from user 2, needs so to meet τ 3< τ 2, can from user 2, obtain supplemental data twice, user's 3 consumed energies are E (r so 0, 2 τ 3), conserve energy E (r 0, 2 (τ 23)).
Consider the user that the time period [0, | v|] arrives, must meet, user can only to obtain data probability from user 0 be 1-P k1, can obtain from user 0 data need to transmit supplemental data and be
Figure BDA0000410162350000093
the energy expectation consuming is: E &OverBar; k 0 = E &OverBar; ( r 0 , &tau; k ) = WN 0 ( 2 r 0 / W - 1 ) E [ &Sigma; i = 1 k &tau; i ] = WN 0 ( 2 r 0 / W - 1 ) k / &lambda; .
If user can obtain data from user 0
Figure BDA0000410162350000095
also can obtain from user 1
Figure BDA0000410162350000096
data, only suppose to consider the user that [0, | v|] arrives, user 1 one obtains data from user 0 surely so, notices the data that obtain from user 1 exactly, before obtaining data from user 0, need to be transmitted supplemental data and are
Figure BDA0000410162350000098
with
Figure BDA0000410162350000099
first investigate the power consumption of clean culture, the moment t after each time window w, in previous window
Figure BDA00004101623500000910
and the user of [t/2, the t] period in this time window is carrying out unicast transmission, because user is that unicast transmission arrives, so these two period overall lengths are T = 0 - 1 / &lambda; + t - w 2 + t / 2 = w - 1 / &lambda; 2 , Therefore average clean culture number is: n u &OverBar; = ( w&lambda; + 1 ) / 2 , And the number of broadcast is:
Figure BDA00004101623500000913
the upper bound of broadcasting so number is:
Figure BDA00004101623500000914
pro-rata bandwidth, multicast bandwidth is:
Figure BDA00004101623500000915
calculating at the total consumed power of clean culture, multicast mixed transport is: P &OverBar; = P u &OverBar; + P m &OverBar; = 2 ( BW u ) N 0 ( &alpha; + 2 ) KR - &alpha; { exp [ &lambda; s S ( 1 / &lambda; s S + w 2 ) ( e r 0 ln 2 BW u - 1 ) ] - 1 } + BW m N 0 KR - &alpha; ( e | v | r 0 ln 2 w BW m - 1 ) . Pass through formula
Figure BDA0000410162350000102
obtain Best Times length of window and optimum bandwidth allocation strategy
Figure BDA0000410162350000103
In sum, in the embodiment of the present invention, when a plurality of terminal equipments are successively asked same video data, for the terminal equipment of first request video data in window at the appointed time, with broadcast mode transmitting video data; Terminal equipment for second and follow-up request video data in window at the appointed time, with the current business datum of transmit to the terminal equipment of first request video data of broadcast mode transmission, and to the terminal equipment of current request video data, transmit current business datum of having asked the terminal equipment of video data to transmit to first with mode of unicast.Aforesaid way is avoided as each terminal equipment allocation of transmission bandwidth, saves system bandwidth.By setting up based on clean culture and multicast mixed transport performance analysis models, to simplify the Energy Efficiency Analysis of clean culture and multicast, and utilize time window length and multithread to merge machine-processed universal design, make aforesaid way can be suitable for all wireless networks, without the restriction of considering concrete network.By introducing time window technology, and combine with broadcast hybrid transmission technology with clean culture, make aforesaid way on the basis that can save bandwidth of traditional unicast multicast, characteristics of demand that can further adaptive user, saves system bandwidth and transmits energy consumption.By realize stream folding at user cache, make user receiving multicast data stream and unicast data stream simultaneously, make user when requested service, can obtain unicast stream transmission, thereby realize the real-time Transmission of media data, can save system bandwidth and transmission energy consumption simultaneously.
Embodiment bis-
Inventive concept based on same with said method, also provides a kind of base station equipment in the embodiment of the present invention, as shown in Figure 4, described base station equipment specifically comprises:
The first transport module 11, for when a plurality of terminal equipments are successively asked same business datum, in window at the appointed time, first asks the terminal equipment of described business datum, with broadcast mode, transmits described business datum;
The second transport module 12, for the terminal equipment for second and follow-up requested service data in window at the appointed time, continuation is transmitted current business datum of not asking the terminal equipment of described business datum to transmit to first with broadcast mode, the current business datum of having asked the terminal equipment of described business datum to transmit to first of terminal equipment transmission with mode of unicast to business datum described in current request.
Described the first transport module 11, specifically for utilizing system bandwidth in fixed time window, first asks the terminal equipment allocation of transmission bandwidth of described business datum, and transmits described business datum by described transmission bandwidth with broadcast mode.
Described the second transport module 12 specifically for utilizing the business datum allocation of transmission bandwidth of system bandwidth for transmitting with broadcast mode in fixed time window, and is the business datum allocation of transmission bandwidth of transmitting with mode of unicast in fixed time window; Wherein, the transmission bandwidth being distributed with the business datum of broadcast mode transmission and the transmission bandwidth sum of being distributed with the business datum of mode of unicast transmission are not more than described system bandwidth; Based on the described transmission bandwidth being distributed with the business datum of broadcast mode transmission, with the current business datum of not asking the terminal equipment of described business datum to transmit to first of broadcast mode transmission; And, based on the described transmission bandwidth being distributed with the business datum of mode of unicast transmission, the current business datum of having asked the terminal equipment of described business datum to transmit to first of terminal equipment transmission with mode of unicast to business datum described in current request.
Described the second transport module 12, also for the terminal equipment transmission to business datum described in current request is current, to first, ask after business datum that the terminal equipment of described business datum transmit completes, utilizing described system bandwidth is the interior business datum allocation of transmission bandwidth of transmitting with broadcast mode of fixed time window again.
In the embodiment of the present invention, described business datum is specially video data.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separatedly dispose.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.

Claims (10)

1. the clean culture based on time window and a multicast combining transmission method, be applied to comprise in the network of base station equipment and a plurality of terminal equipments, and it is characterized in that, described method at least comprises the following steps:
When a plurality of terminal equipments are successively asked same business datum, in window at the appointed time, first asks the terminal equipment of described business datum, and base station equipment is transmitted described business datum with broadcast mode;
Terminal equipment for second and the follow-up described business datum of request in window at the appointed time, described base station equipment continues with the current business datum of not asking the terminal equipment of described business datum transmit to first of broadcast mode transmission, and to the terminal equipment of business datum described in current request, transmits current business datum of having asked the terminal equipment of described business datum to transmit to first with mode of unicast.
2. the method for claim 1, is characterized in that, described base station equipment is transmitted the process of described business datum with broadcast mode, specifically comprise:
Described base station equipment utilizes system bandwidth in fixed time window, first asks the terminal equipment allocation of transmission bandwidth of described business datum, by described transmission bandwidth, with broadcast mode, transmits described business datum.
3. the method for claim 1, it is characterized in that, described base station equipment continues with the current business datum of not asking the terminal equipment of described business datum to transmit to first of broadcast mode transmission, and with mode of unicast to the current process of having asked to first business datum that terminal equipment of described business datum transmitted of the terminal equipment transmission of business datum described in current request, specifically comprise:
Described base station equipment is utilized the business datum allocation of transmission bandwidth of system bandwidth for transmitting with broadcast mode in fixed time window, and is the business datum allocation of transmission bandwidth of transmitting with mode of unicast in fixed time window; Wherein, the transmission bandwidth being distributed with the business datum of broadcast mode transmission and the transmission bandwidth sum of being distributed with the business datum of mode of unicast transmission are not more than described system bandwidth;
Described base station equipment is based on the described transmission bandwidth being distributed with the business datum of broadcast mode transmission, with the current business datum of not asking the terminal equipment of described business datum to transmit to first of broadcast mode transmission; And, the transmission bandwidth that described base station equipment is distributed based on the described business datum of transmitting with mode of unicast, the current business datum of having asked the terminal equipment of described business datum to transmit to first of terminal equipment transmission with mode of unicast to business datum described in current request.
4. method as claimed in claim 3, it is characterized in that, described base station equipment is current after first asks business datum that the terminal equipment of described business datum transmitted to the terminal equipment transmission of business datum described in current request with mode of unicast, and described method also comprises:
After the business datum of transmit at the current terminal equipment of asking described business datum to first of the terminal equipment transmission to business datum described in current request completes, it is the interior business datum allocation of transmission bandwidth of transmitting with broadcast mode of fixed time window again that described base station equipment is utilized described system bandwidth.
5. the method as described in claim 1-4 any one, is characterized in that, described business datum is specially video data.
6. a base station equipment, is characterized in that, described base station equipment specifically comprises:
The first transport module, for when a plurality of terminal equipments are successively asked same business datum, for the terminal equipment of first requested service data in window at the appointed time, with broadcast mode service data transmission;
The second transport module, for the terminal equipment for second and follow-up requested service data in window at the appointed time, continuation is transmitted current business datum of not asking the terminal equipment of described business datum to transmit to first with broadcast mode, the current business datum of having asked the terminal equipment of described business datum to transmit to first of terminal equipment transmission with mode of unicast to business datum described in current request.
7. base station equipment as claimed in claim 6, it is characterized in that, described the first transport module, specifically for utilizing system bandwidth in fixed time window, first asks the terminal equipment allocation of transmission bandwidth of described business datum, and with broadcast mode, transmit described business datum by described transmission bandwidth.
8. base station equipment as claimed in claim 6, it is characterized in that, described the second transport module, specifically for utilizing the business datum allocation of transmission bandwidth of system bandwidth for transmitting with broadcast mode in fixed time window, and it is the business datum allocation of transmission bandwidth of transmitting with mode of unicast in fixed time window; Wherein, the transmission bandwidth being distributed with the business datum of broadcast mode transmission and the transmission bandwidth sum of being distributed with the business datum of mode of unicast transmission are not more than described system bandwidth; Based on the described transmission bandwidth being distributed with the business datum of broadcast mode transmission, with the current business datum of not asking the terminal equipment of described business datum to transmit to first of broadcast mode transmission; And, based on the described transmission bandwidth being distributed with the business datum of mode of unicast transmission, the current business datum of having asked the terminal equipment of described business datum to transmit to first of terminal equipment transmission with mode of unicast to business datum described in current request.
9. base station equipment as claimed in claim 8, it is characterized in that, described the second transport module, also for the terminal equipment transmission to business datum described in current request is current, to first, ask after business datum that the terminal equipment of described business datum transmit completes, utilizing described system bandwidth is the interior business datum allocation of transmission bandwidth of transmitting with broadcast mode of fixed time window again.
10. base station equipment as claimed in claim 8, is characterized in that, described business datum is specially video data.
CN201310551966.XA 2013-11-07 2013-11-07 Time window based unicast and multicast mixing transmission method and apparatus Pending CN103607595A (en)

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CN101815025A (en) * 2009-02-24 2010-08-25 华为技术有限公司 Dispatching method, device and system for unicast and multicast
CN102215174A (en) * 2011-07-14 2011-10-12 丁泉龙 Adaptive multimedia stream link transmission method

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CN101296104A (en) * 2007-04-26 2008-10-29 株式会社日立制作所 Order program data distribution system
CN101815025A (en) * 2009-02-24 2010-08-25 华为技术有限公司 Dispatching method, device and system for unicast and multicast
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CN108668142A (en) * 2017-03-27 2018-10-16 华为软件技术有限公司 Video broadcasting method and device
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Application publication date: 20140226