CN101527839B - Method for improving service efficiency of wireless multimedia bandwidth - Google Patents
Method for improving service efficiency of wireless multimedia bandwidth Download PDFInfo
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- CN101527839B CN101527839B CN 200810008381 CN200810008381A CN101527839B CN 101527839 B CN101527839 B CN 101527839B CN 200810008381 CN200810008381 CN 200810008381 CN 200810008381 A CN200810008381 A CN 200810008381A CN 101527839 B CN101527839 B CN 101527839B
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Abstract
The invention discloses a method for improving the service efficiency of a wireless multimedia bandwidth. The method comprises the following steps: a multimedia broadcasting device sends a request to a mobile terminal to acquire display screen parameters and video code format of the mobile terminal; the multimedia broadcasting device calls the acquired display screen parameters and video code format and optimizes the video data to be transmitted according to the display screen parameters and the video code format; and the multimedia broadcasting device determines a code stream rate according to the display screen parameters and the video code format and transmits the optimized video data to the mobile terminal according to the set code stream rate. The multimedia broadcasting device communicates with the mobile terminal at the set code stream rate, thereby avoiding bandwidth waste and bandwidth deficiency, and improving the service efficiency of the wireless multimedia bandwidth.
Description
Technical field
The present invention relates to a kind of radio multimedium technology, specifically, relate to a kind of method that improves the wireless multimedia bandwidth service efficiency.
Background technology
Along with the development of wireless technology and the people increase for the multimedia service demand, mobile multi-media service has obtained unprecedented development, and modal example is exactly mobile TV and the mobile phone television business on the bus.Yet wireless bandwidth but becomes the bottleneck of its high traffic development, and for example the stream rate under the 802.11b pattern of WIFI is 11Mbps, removes link overhead, and the speed that really is used for transmitting data (video data) may be only less than 6Mbps; Video for the MPEG4 form of 1.5M bandwidth can only transmit 4 road flows.
In the reality utilization, our multimedia broadcast equipment usually adopts identical stream rate and portable terminal carries out communication, has so just produced the not enough problem of bandwidth waste and bandwidth inevitably.In order to improve the service efficiency of multimedia bandwidth, adopt the stream rate that is fit to just to seem very necessary for different portable terminals.For the very low mobile phone users of screen resolution, the stream rate of video can correspondingly reduce, and reason is again that big stream rate also can can't obtain better display effect because of the limitation of display screen; In like manner, under same video code model, the bigger stream rate that just should adopt that mobile terminal display screen resolution is high obtains better display effect, certainly, if the user can require to reduce stream rate to obtain corresponding lower rate.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method that improves the wireless multimedia bandwidth service efficiency, has improved the service efficiency of wireless multimedia bandwidth.
Technical scheme is as follows:
A kind of method that improves the wireless multimedia bandwidth service efficiency, step comprises:
(1) multimedia broadcast equipment sends request to portable terminal, to obtain the display screen parameter and the video code model of described portable terminal;
(2) obtained display screen parameter of described multimedia broadcasting device calls and video code model are optimized the video data that will send according to described display screen parameter and video code model;
(3) described multimedia broadcast equipment is determined stream rate according to described display screen parameter and video code model, and sends to described portable terminal according to the video data of definite stream rate of determining after with described optimization.
Further, in the step (1), when described multimedia broadcast equipment concerns with a certain portable terminal generation multimedia service first, display screen parameter and the video code model that obtains described portable terminal feedback is saved in the relevant parameters database.
Further, in the step (2), described multimedia broadcast equipment is optimized in the process video data, according to described screen parameter of obtaining and video code model described video data is resampled.
Beneficial effect is as follows:
Among the present invention, multimedia broadcast equipment communicates by determining the stream rate and the portable terminal that are fit to, has avoided bandwidth waste and bandwidth deficiency.Adopt the stream rate that is fit to improve the wireless multimedia bandwidth service efficiency at different portable terminals and video code model, so both bandwidth waste of having avoided big stream rate to cause, also can avoid simultaneously the decline of the video effect that speed causes inadequately, also alleviate user's rate simultaneously.
Description of drawings
Fig. 1 is the application scenarios figure of multimedia broadcast equipment and mobile terminal communication among the present invention;
Fig. 2 is a workflow diagram of the present invention.
Embodiment
Among the present invention, multimedia broadcast equipment is by obtaining the display screen parameter to portable terminal, and optimizes with the compressed video data amount according to video code model and to reduce stream rate, thereby improves its efficiency of bandwidth use.When multimedia broadcast equipment concerns with a certain portable terminal generation multimedia service first, multimedia broadcast equipment at first sends request to obtain the display screen parameter and the video code model of portable terminal to portable terminal, after obtaining the feedback of portable terminal, preserve the display screen parameter of portable terminal and video code model in the relevant parameters database, just can directly call during next communication; According to the screen parameter of obtaining with video code model is optimized and compressed video data, thereby determine that the stream rate and the portable terminal that are fit to communicate, so both bandwidth waste of having avoided big stream rate to cause also can be avoided the decline of the video effect that speed causes inadequately simultaneously.Be optimized and compress after video data will correspondingly reduce, the display effect that can on the basis of the speed that reduces code stream, obtain preferably, be fit to so just, thus reach the purpose that improves the wireless multimedia bandwidth service efficiency.
Below in conjunction with drawings and Examples, technical solution of the present invention is described in further detail.
As shown in Figure 1, be the application scenarios figure of multimedia broadcast equipment and mobile terminal communication.
Video data after multimedia broadcast equipment will be optimized and compress sends to portable terminal by wireless network.
In order to improve efficiency of bandwidth use and video effect simultaneously, multimedia broadcast equipment just must carry out suitable stream rate adjustment when sending the multi-medium data bag.The stream rate data of concrete adjustment need be determined according to video code model with from the screen resolution parameter that portable terminal obtains.This depends on certain algorithm and empirical value, such as, the resolution that 1080i requires is 1920 * 1080, (1080i is the digital high-definition television standard of international endorsement, this standard-required exploration on display resolution ratio is 1920 * 1080, could support the video format of high definition like this; 1080 resolution that refer to vertical direction wherein, i refers to interlacing scan) if the display resolution of portable terminal is lower than this value, multimedia broadcast equipment will correspondingly compress its video data so, adopt median method, averaging method etc. that video data is resampled, send to portable terminal with code stream then, can accomplish " enough " and " efficiently " so simultaneously than low speed.
As shown in Figure 2, be the flow chart of work of the present invention, concrete steps comprise:
Step S201, multimedia broadcast equipment at first send request to portable terminal, obtaining the display screen parameter and the video code model of portable terminal, and deposit display screen parameter and the video code model of obtaining in corresponding database.
Step S202, multimedia broadcast equipment carries out the resampling of methods such as intermediate value, average according to the display screen parameter and the video code model of its acquisition to its video data to be sent, carries out communication with lower stream rate and portable terminal at last.
From above-mentioned example as can be seen, utilization display screen parameter and video code model reduce the video data volume and have not only reduced stream rate, and improved the wireless multimedia bandwidth service efficiency, for the problem that how to improve the wireless multimedia bandwidth service efficiency provides good solution.
Claims (3)
1. method that improves the wireless multimedia bandwidth service efficiency, step comprises:
(1) multimedia broadcast equipment sends request to portable terminal, to obtain the display screen parameter and the video code model of described portable terminal;
(2) obtained display screen parameter of described multimedia broadcasting device calls and video code model are optimized the video data that will send according to described display screen parameter and video code model;
(3) described multimedia broadcast equipment is determined stream rate according to described display screen parameter and video code model, and sends to described portable terminal according to the video data of definite stream rate of determining after with described optimization.
2. the method for raising wireless multimedia bandwidth service efficiency as claimed in claim 1, it is characterized in that, in the step (1), when described multimedia broadcast equipment concerns with a certain portable terminal generation multimedia service first, display screen parameter and the video code model that obtains described portable terminal feedback is saved in the relevant parameters database.
3. the method for raising wireless multimedia bandwidth service efficiency as claimed in claim 1, it is characterized in that, in the step (2), described multimedia broadcast equipment is optimized in the process video data, according to described screen parameter of obtaining and video code model described video data is resampled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810008381 CN101527839B (en) | 2008-03-06 | 2008-03-06 | Method for improving service efficiency of wireless multimedia bandwidth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200810008381 CN101527839B (en) | 2008-03-06 | 2008-03-06 | Method for improving service efficiency of wireless multimedia bandwidth |
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| Publication Number | Publication Date |
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| CN101527839A CN101527839A (en) | 2009-09-09 |
| CN101527839B true CN101527839B (en) | 2011-05-11 |
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| CN 200810008381 Expired - Fee Related CN101527839B (en) | 2008-03-06 | 2008-03-06 | Method for improving service efficiency of wireless multimedia bandwidth |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299921A (en) * | 2011-08-09 | 2011-12-28 | 深圳市万兴软件有限公司 | Conversion method of video file adapted to mobile terminal and system thereof |
| CN103348710B (en) * | 2011-10-10 | 2016-12-21 | 华为技术有限公司 | Obtain the method, apparatus and system of user equipment information |
| CN102695092B (en) * | 2012-05-25 | 2015-08-19 | 四川长虹电器股份有限公司 | A kind of method promoting IPTV picture quality of television |
| CN104581369A (en) * | 2014-12-22 | 2015-04-29 | 广东省广播电视网络股份有限公司 | Multi-channel high-definition live program forwarding method and system based on broadcast television network home gateway |
| CN108337530A (en) * | 2018-04-20 | 2018-07-27 | 上海麦界信息技术有限公司 | It is a kind of to realize interactive method and apparatus on traditional big screen display device |
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| CN1720678A (en) * | 2003-05-09 | 2006-01-11 | Lg电子株式会社 | Apparatus and method for establishing feedback in a broadcast or multicast service |
| WO2006026889A1 (en) * | 2004-09-06 | 2006-03-16 | Utstarcom Telecom Co., Ltd. | Dynamic rate control system and method for multi-media in ims system |
| EP1372304B1 (en) * | 2002-06-14 | 2006-06-07 | Matsushita Electric Industrial Co., Ltd. | Method, transmitter and receiver for adapting the encoding rate to a varying transport rate |
| US20070053446A1 (en) * | 2005-09-02 | 2007-03-08 | Skipjam Corp. | System and method for automatic adjustment of streaming video bit rate |
| CN1329438C (en) * | 2002-10-16 | 2007-08-01 | 辛特弗公司 | Epoxy resin curing agent for enhanced wear resistance and weatherability of cured materials |
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2008
- 2008-03-06 CN CN 200810008381 patent/CN101527839B/en not_active Expired - Fee Related
Patent Citations (6)
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|---|---|---|---|---|
| CN1377201A (en) * | 2001-03-16 | 2002-10-30 | 日本电气株式会社 | Transferring start-up mobile telephone for inspecting types and formats of receptable multimedia messages by target mobile telephone in multimedia communication system |
| EP1372304B1 (en) * | 2002-06-14 | 2006-06-07 | Matsushita Electric Industrial Co., Ltd. | Method, transmitter and receiver for adapting the encoding rate to a varying transport rate |
| CN1329438C (en) * | 2002-10-16 | 2007-08-01 | 辛特弗公司 | Epoxy resin curing agent for enhanced wear resistance and weatherability of cured materials |
| CN1720678A (en) * | 2003-05-09 | 2006-01-11 | Lg电子株式会社 | Apparatus and method for establishing feedback in a broadcast or multicast service |
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