CN101022628A - Mobile multimedia broadcasting terminal and method for obtaining service allocation list by the same terminal - Google Patents
Mobile multimedia broadcasting terminal and method for obtaining service allocation list by the same terminal Download PDFInfo
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- CN101022628A CN101022628A CNA2007100868692A CN200710086869A CN101022628A CN 101022628 A CN101022628 A CN 101022628A CN A2007100868692 A CNA2007100868692 A CN A2007100868692A CN 200710086869 A CN200710086869 A CN 200710086869A CN 101022628 A CN101022628 A CN 101022628A
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Abstract
A method for obtaining service configuration table of mobile multimedia broadcast terminal includes obtaining service configuration table information from control channel multiplex frame by terminal, analyzing obtained information to obtain section length and section quantity as well as section number field, applying buffer storage space of service configuration table as per section length field and buffer-storing service configuration table of the section, receiving service configuration table in follow up control channel as per section quantity field, sequencing and storing service configuration table of each section as per section number field.
Description
Technical field
The present invention relates to the digital mobile communication technical field, relate in particular to a kind of mobile multi-media broadcast terminal and obtain the method for service allocation list.
Background technology
In recent years, digital mobile multimedia broadcasting technology and standard evolution are rapid, for example (the digital video broadcast-handheld formula receives Ou Zhou DVB-H: Digital Video Broadcast Handheld), the MediaFLO of the U.S. (the single forward link of medium: Media Forward Link Only) and China CMMB (Mobile Multimedia Broadcasting: China Mobile Multimedia Broadcasting) etc., for its terminal use provides many service content, if advertisement, weather forecast, news, sports cast, variety, the multimedia broadcasting play, programs such as film, the user can select the service program of Mobile Multimedia Broadcasting according to the hobby of oneself.
Mobile Multimedia Broadcasting is meant via satellite and the terrestrial wireless broadcast mode, receives professional system such as broadcast TV program and information service whenever and wherever possible for seven cun accepting devices such as following the small screen.The chief component of CMMB system architecture comprises that first is the front end of broadcasting, comprises the content of broadcast TV program and data service, pools together by the program integrated platform and broadcasts.Its transmission system main composition comprises satellite system and ground transition net so.It is to be covered as the master by one with satellite, and it is auxilliary increasing fixed network with ground, covers the whole of China, realizes the system of receiving broadcast signal whenever and wherever possible.
This system adopts the frequency of S-band.Its signal one tunnel is directly to be up to satellite, and the signal of relaying into S-band then on satellite directly sends to terminal.The place that China probably has 5% area satellite-signal to cover is augmented with ground system.That is to say that signal that receiving terminal can receive satellite also can receive the signal on ground.These two signals are while, same frequency, same signal.
Mobile Multimedia Broadcasting adopts time division way to send MBMS service, and the duration of its broadcast channel frame is 1 second, is made up of 40 25 milliseconds of time slots, and one or more time slots can carry the data of a broadcasting multiplex frame encapsulation.In the multiplexed frame structure of Mobile Multimedia Broadcasting, multiplexed frame is divided into multiplex frame head, multiplexed frame payload and fills three parts, it is in the 0 multiplexed frame payload that the phase related control information table of mobile multimedia broadcast system is encapsulated in sequence number as multiplexed sub frame, and wherein service allocation list is one of control information watch series.
Service allocation list has been described all business of present networks and the correspondence relationship information between the carrier frequency, is divided into continuing service allocation list and short time service allocation table, and the two is except table sign sequence number is variant, and other table intrinsic parameters are all identical.Because mobile multi-media broadcasting service quantity is a lot, widely different, so the length of service allocation list is uncertain, in order in finite wireless resources, to transmit the random length service allocation list, mobile multimedia broadcast system adopts the mode of segmentation to this table, promptly in front, service allocation list is divided into a plurality of sections, adopt the mode of scheduling in different broadcast channel frame, periodically to transmit, therefore, at front end system service allocation list information is divided under the situation of a plurality of data segments transmissions, terminal can not receive the just whole acquisition service allocation lists of broadcast channel frame one time.
Summary of the invention
The present invention proposes a kind of mobile multi-media broadcast terminal and obtains the method for service allocation list, can solve the problem that terminal is obtained complete service allocation list.
For this reason, the present invention takes following technical scheme:
A kind of mobile multi-media broadcast terminal comprises a buffer, is used for the service allocation list of memory paragraph length, hop count amount, segment number field and segmentation.
Also comprise a resolution unit, be used for resolving and obtain described service allocation list information from the control channel multiplexed frame.
A kind of mobile multi-media broadcast terminal obtains the method for service allocation list, may further comprise the steps:
A, described terminal are obtained described service allocation list information from the control channel multiplexed frame;
B, the described service allocation list information of parsing are obtained segment length, hop count amount and segment number field;
C. be described service allocation list application spatial cache according to described segment length field, and this section business of buffer memory allocation list;
D, judge whether to return steps A, receive whole sections service allocation list in the subsequent control channel multiplexing frame according to described hop count amount field;
E, according to the segment number field of every section business allocation list, each section business allocation list is sorted, and buffer memory.
Steps A further may further comprise the steps:
A1, described terminal receive the control channel multiplexed frame, and resolve multiplex frame head;
A2, obtain the length of described multiplex frame head and the length of each multiplexed sub frame;
A3, obtain described service allocation list information according to control information table sequence number.
In the steps A 2, in the control signal multiplexed frame, the length of each multiplexed sub frame is exactly the length of each control information table.
Adopt technical scheme of the present invention, can make mobile multi-media terminal obtain complete service allocation list.
Description of drawings
Fig. 1 is for obtaining the flow chart of service allocation list among the present invention.
Embodiment
Below in conjunction with accompanying drawing, and technical scheme of the present invention is described further by embodiment.
A kind of mobile multi-media broadcast terminal, comprise a resolution unit and a buffer, resolution unit is resolved the described service allocation list information of obtaining from the control channel multiplexed frame, comprising segment length, hop count amount, segment number field, buffer is used for the service allocation list of memory paragraph length, hop count amount, segment number field and segmentation, and each section business allocation list is combined into complete service allocation list according to segment length, hop count amount, segment number field, stored again.
As shown in Figure 1, mobile multi-media broadcast terminal obtains service allocation list and may further comprise the steps:
Step 101: mobile multi-media broadcast terminal receives the control channel multiplexed frame, and parsing multiplex frame head, obtain multiplex frame head length, each multiplexed sub frame length, in the control channel multiplexed frame, each multiplexed sub frame length is exactly each control information table length, obtains service allocation list information according to control information table sequence number;
Step 102: the service allocation list information that obtains is resolved, obtain segment length field, hop count amount field and segment number field;
Step 103: according to segment length field is this section business allocation list application spatial cache, and this section business of buffer memory allocation list;
Step 104: according to hop count amount field, judged whether to receive the service allocation list of all sections, if, then go to step 105, if not, then go to step 101;
Step 105: according to the segment number field of the every section business allocation list that receives, each section business allocation list is sorted, the row cache of going forward side by side, thus obtain complete service allocation list.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (5)
1, a kind of mobile multi-media broadcast terminal is characterized in that, comprises a buffer, is used for the service allocation list of memory paragraph length, hop count amount, segment number field and segmentation.
2, a kind of mobile multi-media broadcast terminal according to claim 1 is characterized in that, also comprises a resolution unit, is used for resolving obtaining described service allocation list information from the control channel multiplexed frame.
3, a kind of mobile multi-media broadcast terminal obtains the method for service allocation list, it is characterized in that, may further comprise the steps:
A, described terminal are obtained described service allocation list information from the control channel multiplexed frame;
B, the described service allocation list information of parsing are obtained segment length, hop count amount and segment number field;
C. be described service allocation list application spatial cache according to described segment length field, and this section business of buffer memory allocation list;
D, judge whether to return steps A, receive whole sections service allocation list in the subsequent control channel multiplexing frame according to described hop count amount field;
E, according to the segment number field of every section business allocation list, each section business allocation list is sorted, and buffer memory.
4, a kind of Multimedia Mobile broadcast terminal according to claim 3 obtains the method for service allocation list, it is characterized in that steps A further may further comprise the steps:
A1, described terminal receive the control channel multiplexed frame, and resolve multiplex frame head;
A2, obtain the length of described multiplex frame head and the length of each multiplexed sub frame;
A3, obtain described service allocation list information according to control information table sequence number.
5, obtain the method for service allocation list according to claim 3 or 4 described a kind of Multimedia Mobile broadcast terminals, it is characterized in that in the steps A 2, in the control signal multiplexed frame, the length of each multiplexed sub frame is exactly the length of each control information table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100868692A CN100551107C (en) | 2007-03-21 | 2007-03-21 | A kind of mobile multi-media broadcast terminal and obtain the method for service allocation list |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100868692A CN100551107C (en) | 2007-03-21 | 2007-03-21 | A kind of mobile multi-media broadcast terminal and obtain the method for service allocation list |
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| Publication Number | Publication Date |
|---|---|
| CN101022628A true CN101022628A (en) | 2007-08-22 |
| CN100551107C CN100551107C (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100868692A Expired - Fee Related CN100551107C (en) | 2007-03-21 | 2007-03-21 | A kind of mobile multi-media broadcast terminal and obtain the method for service allocation list |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100512518C (en) * | 2007-09-20 | 2009-07-08 | 中兴通讯股份有限公司 | An implementation method and system for mobile multi-media broadcast service |
| CN102209260A (en) * | 2010-03-30 | 2011-10-05 | 联芯科技有限公司 | Configuration method and system for audio/ video decoding configuration information and mobile terminal thereof |
| WO2012065395A1 (en) * | 2010-11-19 | 2012-05-24 | 中兴通讯股份有限公司 | Service configuration processing method and apparatus |
| CN102752193A (en) * | 2012-05-23 | 2012-10-24 | 杭州斯凯网络科技有限公司 | Fast buffering method for live streaming |
| CN102761405A (en) * | 2012-06-29 | 2012-10-31 | 北京牡丹电子集团有限责任公司 | Logic channel configure method for China mobile multimedia broadcasting (CMMB) system |
-
2007
- 2007-03-21 CN CNB2007100868692A patent/CN100551107C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100512518C (en) * | 2007-09-20 | 2009-07-08 | 中兴通讯股份有限公司 | An implementation method and system for mobile multi-media broadcast service |
| CN102209260A (en) * | 2010-03-30 | 2011-10-05 | 联芯科技有限公司 | Configuration method and system for audio/ video decoding configuration information and mobile terminal thereof |
| WO2012065395A1 (en) * | 2010-11-19 | 2012-05-24 | 中兴通讯股份有限公司 | Service configuration processing method and apparatus |
| CN102752193A (en) * | 2012-05-23 | 2012-10-24 | 杭州斯凯网络科技有限公司 | Fast buffering method for live streaming |
| CN102752193B (en) * | 2012-05-23 | 2015-07-29 | 杭州斯凯网络科技有限公司 | A kind of fast cache method of live TV stream |
| CN102761405A (en) * | 2012-06-29 | 2012-10-31 | 北京牡丹电子集团有限责任公司 | Logic channel configure method for China mobile multimedia broadcasting (CMMB) system |
| CN102761405B (en) * | 2012-06-29 | 2016-02-10 | 北京牡丹电子集团有限责任公司 | A kind of logic channel collocation method for China Mobile multimedia broadcasting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100551107C (en) | 2009-10-14 |
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