CN102118654B - Method, device and system for acquiring service information - Google Patents
Method, device and system for acquiring service information Download PDFInfo
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- CN102118654B CN102118654B CN 201010022607 CN201010022607A CN102118654B CN 102118654 B CN102118654 B CN 102118654B CN 201010022607 CN201010022607 CN 201010022607 CN 201010022607 A CN201010022607 A CN 201010022607A CN 102118654 B CN102118654 B CN 102118654B
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Abstract
The invention discloses a method, a device and a system for acquiring service information. In the method and the device, a server adds the service information in control information of all preset frequency points; a terminal scans all the frequency points, determines target frequency points and sends a request for acquiring control information corresponding to the target frequency points to the server; the server feedbacks the service information in the control information corresponding to the terminal according to the request of the terminal; and the terminal analyzes the acquired control information so as to obtain the service information corresponding to the target frequency points. In the invention, time related to ESG (electronic service guide) is omitted in the process of acquiring the service information, so that not only is the needed ineffective time for acquiring the service information reduced, but also the data volume is reduced, the influence of network error codes on the time for acquiring the service information is reduced, further a user can acquire the needed service information fast, and the user experience is improved.
Description
Technical field
The present invention relates to the mobile communication technology field, in particular, relate to a kind of for CMMB(ChinaMobile Multimedia Broadcasting) mobile TV obtains method, device and the system of business information.
Background technology
China Mobile multimedia broadcasting (CMMB, China Mobile Multimedia Broadcasting) adopts high-power S-band satellite-signal to cover the whole nation, utilize ground supplement translator to cover the satellite-signal blind area with mending point with content repeater satellite signal simultaneously frequently, utilize mobile radio networks to make up return path, thus the mobile media broadcasting network that composition One-to-All Broadcast and two-way interactive combine.CMMB has stipulated in the broadcasting service frequency range, frame structure, chnnel coding and the modulation of mobile multimedia broadcast system broadcast channel transmission signal, this standard is applicable to that 30MHz is to the interior broadcasting service frequency of 3000MHz frequency range, via satellite and/or the broadcast system of multi-media signals such as terrestrial wireless emission TV, broadcasting, data message, can realize whole nation roaming.
In the front end system of CMMB, multiplexing function is to finish information encapsulation and arrangements such as audio frequency, video, data, electron service instruction, can enough transmit at the CMMB channel, the audio frequency of same business stream, video-frequency basic flow and data flow substantially is encapsulated in the same multiplexed sub frame.Supplementarys such as electron service instruction (ESG, Electronic Service Guide), user management are encapsulated in respectively in the different multiplexed sub frames, and control information is encapsulated in the special-purpose multiplexed frame.Wherein, each multiplexed frame is by the MF_ID unique identification, and the span of MF_ID is 0 to 39, and wherein the multiplexed frame of MF_ID=0 is used for bear control information, and other multiplexed frame is used for bearer service.
At present, in the CMMB standard, control information data related traffic information has only frequency numbering and service identification, and there is not the business information of user's visual sense, user search can't be learnt any information after business, can only just know which type of information that receives after playing, such words is inconvenience but also lose time not only.
In the practiced solution of prior art, often adopt channel searching after, search for ESG information again, in the ESG data, obtain relevant business information according to the frequency in control information data numbering with service identification, and then exhibition is to the user.But, prior art can make the user that business is had impression intuitively, but it has brought huge time overhead simultaneously, need the time because obtain ESG, resolve ESG and need the time, and because in ESG, not only comprise business information, also comprised a large amount of program content informations, in the time overhead increase of this part use of ESG.And when signal condition is bad, network problems such as the error code that produces also can exert an influence to the time, for example, receive control information several seconds, but because the influence of various factors but will wait for tens seconds even a few minutes are obtained ESG information, cause a large amount of wastes of time.
Summary of the invention
In view of this, the invention provides a kind of method, device and system that obtains business information, solved in the prior art and obtained business information problem slowly because ESG is searched in employing, and the network error code is to obtaining the influence of ESG, the problem of the waste plenty of time of causing.
For achieving the above object, the invention provides following technical scheme:
A kind of method of obtaining business information is applied to China Mobile multimedia broadcasting CMMB mobile TV, comprising:
Each frequency is scanned, to determine the target frequency;
Obtain that server provides with this target frequency control information corresponding, carry business information in the described control information;
From described control information, obtain described business information;
Wherein, at first the service allocation list in the described control information is expanded, then, described business information is added in the service allocation list of described control information; Described business information comprises type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.
A kind of device that obtains business information is applied to China Mobile multimedia broadcasting CMMB mobile TV, comprising:
Scan module is used for each frequency is scanned, and definite target frequency;
Acquisition module, according to the described target frequency of determining, obtain that server provides with its control information corresponding;
Parsing module is resolved the described control information of obtaining, and obtains and described target frequency corresponding service information;
Wherein, at first the service allocation list in the described control information is expanded, then, described business information is added in the service allocation list of described control information; Described business information comprises type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication
A kind of method that business information is provided is applied to China Mobile multimedia broadcasting CMMB mobile TV, comprising:
Be each frequency point allocation control information in advance;
In described control information, add business information;
Answer terminal request to provide its target frequency control information corresponding to this terminal, from described control information, obtain business information by this terminal;
Wherein, at first the service allocation list in the described control information is expanded, then, described business information is added in the service allocation list of described control information; Described business information comprises, type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.
A kind of device that business information is provided is applied to China Mobile multimedia broadcasting CMMB mobile TV, comprising:
Distribution module is used to the corresponding control information of each frequency point allocation;
Add module, at first the service allocation list in the described control information is expanded, then, described frequency corresponding service information is added in the described control information; Wherein, by the business configuration module in the described interpolation module, described business information is added in the service allocation list of described control information; Described business information comprises type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication;
Feedback module, according to the request of terminal, the business information in the described control information corresponding with it of this terminal feedback.
A kind of system of the information of managing business is applied to China Mobile multimedia broadcasting CMMB mobile TV, comprising: server and terminal;
Described server adds business information in the control information of predefined each frequency; Described terminal scans described each frequency, determining the target frequency, and sends the request of obtaining with described target frequency control information corresponding to described server; Described server is according to the request of terminal, the business information in the described control information corresponding with it of this terminal feedback; Described terminal is resolved the described control information of obtaining, and obtains and described target frequency corresponding service information;
Wherein, described server is at first expanded the service allocation list in the described control information, and described business information is added in the service allocation list of described control information by server; Described business information comprises, type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.
Via above-mentioned technical scheme as can be known, compared with prior art, the present invention openly provides a kind of method, device and system that obtains business information.Service allocation list to multiplexing part among the CMMB is expanded, and increases business information in allocation list, obtains information for terminal and shows the user.
In the present invention, at first, expand by the control information that encapsulates in the front end system to CMMB, business information is added in the service allocation list of control information; Then, carry out scanning to each frequency; Obtain control information again; At last, in the control information of obtaining, read business information.The present invention is in obtaining the process of business information, omitted the time relevant with ESG, not only reduced and obtained business information required ineffective time, also reduced data volume, reduced the network error code to obtaining the temporal influence of business information, make the user can obtain required business information fast, and at short notice business is had a direct feel, further improved user's experience.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is a kind of method flow diagram that obtains business information of the present invention;
Fig. 2 is the service allocation list in the control information of prior art Central Plains;
Fig. 3 is the service allocation list in the control information among the present invention;
Fig. 4 is a kind of device block diagram that obtains business information of the present invention;
Fig. 5 provides the method flow diagram of business information for the present invention is a kind of;
Fig. 6 provides the device block diagram of business information for the present invention is a kind of;
Fig. 7 is the system block diagram of a kind of information of managing business of the present invention;
Fig. 8 is the system flow chart of a kind of information of managing business of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention discloses a kind of method and system that obtains business information.In the front end system of CMMB, the audio frequency of same business stream, video-frequency basic flow and data flow substantially is encapsulated in the same multiplexed sub frame, supplementarys such as ESG and user management are encapsulated in respectively in the different multiplexed sub frames, and control information is encapsulated in the special-purpose multiplexed frame.Wherein, each multiplexed frame is by the MF_ID unique identification, and the span of MF_ID is 0 to 39, and wherein the multiplexed frame of MF_ID=0 is used for bear control information.The present invention expands the service allocation list in the control information, in service allocation list, increase business information, behind the search frequency, directly from control information, obtain business information, provide terminal to obtain information and show the user, omitted the relevant time of ESG, not only reduced and obtained business information required ineffective time, also reduced data volume, reduced the network error code to obtaining the temporal influence of business information, made the user can obtain required business information fast and saved the time of obtaining business information.
See also accompanying drawing 1, obtain the method flow diagram of business information for the present invention is a kind of.The concrete steps of obtaining information are as follows:
Step S11, each frequency is scanned, to determine the target frequency.
Step S12, obtain that server provides with this target frequency control information corresponding, carry business information in the described control information.
Obtain and target frequency corresponding service information in step S13, the control information of from step S12, obtaining.
Wherein, in step S12, server provide with target frequency control information corresponding in carry business information, the business information here is to be added in the service allocation list of control information by server.
In CMMB, because control information is by the special-purpose multiplexed frame carrying of MF_ID=0, so add business information in the service allocation list of server in control information (multiplexed frame of MF_ID=0).Here, the service allocation list in the control information is also referred to as lasting business/short time service allocation table, is used for describing all lasting business/short time services of present networks and the correspondence relationship information between the carrier frequency.It is expanded, directly the business information data are kept in the service allocation list of control information, it is more quick to make the terminal use obtain business information.
Here the business information of adding in the service allocation list in control information is described in detail, sees also accompanying drawing 2 and accompanying drawing 3.Wherein, the service allocation list of accompanying drawing 2 for expanding in the control information in the prior art.Accompanying drawing 3 is the service allocation list in the control information of the present invention after expanding.
It should be noted that indications (uimsbf, unsigned integer mostsignificant bit first) the expression signless integer in service allocation list, uimsbf unsigned integer most significant bit first; Indications (bslbf, bit string leftbit first) expression bit rate, left bit first.From the comparison of accompanying drawing 2 and accompanying drawing 3, can know that the part that increases is business information in service allocation list.Wherein, the business information data comprise: free indication, type of service, professional classification, Business Name languages, Business Name length and Business Name.Various piece to the business information data is described in detail below.
Freely be designated as 1 bit field, during definition be: 1 expression is free, 0 expression charge.
Type of service is 7 bit fields, and the type of expression miscellaneous service is defined as:
0 expression keeps;
1 expression TV;
2 expression audio broadcastings;
3 expression short format video frequency program fragments;
4 expression files are downloaded;
5 expression software administrations;
6 expression ESG;
7 expression stream mode data, services;
8 expressions 127 keep.
Business is categorized as 8 bit fields, and the classified information that expression is professional keeps.
The Business Name languages are 24 bit fields, the languages attribute that the expression Business Name is described, comprised and met 3 multiplexing alphabetical languages codes of CMMB, each character inserts 24 bit fields successively according to eight byte coded graphicss of information processing character set (GB/TI15273.1-1994) coding.Here to its coding give an example as: 3 character codes " zho " of Chinese character may be encoded as " 0,111 1,010 0,110 1,000 01101111 ".
Business Name length is 8 bit fields, and span is 0 to 200, the length of identification service title, and unit is byte.
Business Name is 8 bit fields, the data of description of expression Business Name.
It is pointed out that here the business information that the present invention adds comprises the information of foregoing detailed description in service allocation list, but be not limited only to these business information.
Describe method of the present invention above in detail, can adopt the device of various ways to realize for method of the present invention, the invention also discloses a kind of device that obtains business information, see also accompanying drawing 4, obtain the device block diagram of business information for the present invention is a kind of, mainly comprise: scan module 41, acquisition module 42 and parsing module 43.
Scan module 41 is used for each frequency is scanned, and definite target frequency.
Parsing module 43, the control information that obtains from acquisition module 42 is resolved, obtain and target frequency corresponding service information.
Save the relevant time of ESG at this device, not only reduced and obtained business information required ineffective time, also reduced data volume, reduced the network error code to obtaining the temporal influence of business information, make the user can obtain required business information fast, improved user's experience.
It should be noted that in parsing module 43, is that the service allocation list of the control information of obtaining in the module 42 is resolved, with obtain be added in this service allocation list with target frequency corresponding service information.In addition, in parsing module 43, that obtains comprises with target frequency corresponding service information: type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.Wherein the description in the method for the detailed content of various information and the invention described above is identical.Need to prove that the business information of interpolation includes but are not limited to the business information of foregoing detailed description.
See also accompanying drawing 5, the invention also discloses a kind of method that business information is provided, accompanying drawing 5 is a kind of method flow diagram that business information is provided disclosed by the invention, and concrete steps are as follows:
Step S51, be each frequency point allocation control information in advance.
Add business information in step S52, each frequency control information corresponding of in step S51, distributing.
Step S53, answer terminal request to provide it to require target frequency control information corresponding to this terminal, by obtaining in the control information of this terminal from step S52 and target frequency corresponding service information.
In step S52, the business information data are to be added in the service allocation list of control information by server, and, in CMMB, server adds the process of business information and the type of business information, identical with addition manner and type in a kind of method of obtaining business information disclosed by the invention, repeat no more here.
Describe a kind of method that business information is provided of the present invention above in detail, can adopt the device of various ways to realize for method of the present invention, the invention also discloses a kind of device that business information is provided, see also accompanying drawing 6, the device block diagram of business information is provided for the present invention is a kind of, mainly comprises: distribution module 61, interpolation module 62 and feedback module 63.
Add module 62, each frequency corresponding service information in the distribution module 61 is added in the corresponding control information.
It should be noted that in adding module 62 and comprise a business configuration module 621.Business configuration module 621 is added each frequency corresponding service information in the service allocation list of corresponding control information to.
In this device, save the relevant time of ESG, not only reduced and obtained business information required ineffective time, also reduced data volume, reduced the network error code to obtaining the temporal influence of business information, make the user can obtain required business information fast, improved user's experience.
In addition, in adding module 62, the business information of adding in the control information comprises: type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.Wherein the description in the method for the detailed content of various information and the invention described above is identical.Need to prove that the business information data of interpolation include but are not limited to the business information of foregoing detailed description.
See also accompanying drawing 7, the system block diagram for a kind of information of managing business disclosed by the invention comprises: server 71 and terminal 72.
This system is based on above-mentioned disclosed a kind of method of obtaining the method for business information and business information being provided, and the flow chart of this system sees also accompanying drawing 8, and concrete steps are as follows:
Step S81, server add business information in the control information of predefined each frequency.
Step S82, terminal scan each frequency, and definite target frequency
Step S83, send the request obtain with target frequency control information corresponding to server.
Step S84, server be according to the request of terminal, the business information in this terminal feedback and the target frequency control information corresponding.
Step S85, terminal are resolved the control information of obtaining, and obtain and target frequency corresponding service information.
In this system, save the relevant time of ESG, not only reduced and obtained business information required ineffective time, also reduced data volume, reduced the network error code to obtaining the temporal influence of business information, make the user can obtain required business information fast, improved user's experience.
Need to prove that in this system, the business information data are to be added in the service allocation list of control information by server.And in CMMB, server adds the process of business information and the type of business information, and is identical with addition manner and type among the disclosed embodiment of the invention described above, repeats no more here.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a method of obtaining business information is applied to China Mobile multimedia broadcasting CMMB mobile TV, it is characterized in that, comprising:
Each frequency is scanned, to determine the target frequency;
Obtain that server provides with this target frequency control information corresponding, carry business information in the described control information;
From described control information, obtain described business information;
Wherein, at first the service allocation list in the described control information is expanded, then, described business information is added in the service allocation list of described control information; Described business information comprises type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.
2. a device that obtains business information is applied to China Mobile multimedia broadcasting CMMB mobile TV, it is characterized in that, comprising:
Scan module is used for each frequency is scanned, and definite target frequency;
Acquisition module, according to the described target frequency of determining, obtain that server provides with its control information corresponding;
Parsing module is resolved the described control information of obtaining, and obtains and described target frequency corresponding service information;
Wherein, at first the service allocation list in the described control information is expanded, then, described business information is added in the service allocation list of described control information; Described business information comprises, type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.
3. the method that business information is provided is applied to China Mobile multimedia broadcasting CMMB mobile TV, it is characterized in that, comprising:
Be each frequency point allocation control information in advance;
In described control information, add business information;
Answer terminal request to provide its target frequency control information corresponding to this terminal, from described control information, obtain business information by this terminal;
Wherein, at first the service allocation list in the described control information is expanded, then, described business information is added in the service allocation list of described control information; Described business information comprises type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.
4. the device that business information is provided is applied to China Mobile multimedia broadcasting CMMB mobile TV, it is characterized in that, comprising:
Distribution module is used to the corresponding control information of each frequency point allocation;
Add module, at first the service allocation list in the described control information is expanded, then, described frequency corresponding service information is added in the described control information; Wherein, by the business configuration module in the described interpolation module, described business information is added in the service allocation list of described control information; Described business information comprises type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication;
Feedback module, according to the request of terminal, the business information in the described control information corresponding with it of this terminal feedback.
5. the system of the information of managing business is applied to China Mobile multimedia broadcasting CMMB mobile TV, it is characterized in that, comprising: server and terminal;
Described server adds business information in the control information of predefined each frequency; Described terminal scans described each frequency, determining the target frequency, and sends the request of obtaining with described target frequency control information corresponding to described server; Described server is according to the request of terminal, the business information in the described control information corresponding with it of this terminal feedback; Described terminal is resolved the described control information of obtaining, and obtains and described target frequency corresponding service information;
Wherein, described server is at first expanded the service allocation list in the described control information, and described business information is added in the service allocation list of described control information by server; Described business information comprises, type of service, professional classification, Business Name languages, Business Name length, Business Name and free indication.
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| CN103430480B (en) * | 2013-02-26 | 2016-09-28 | 华为技术有限公司 | The transmission method of schedule information, terminal and converged services device |
| CN111325526B (en) * | 2020-03-09 | 2023-11-28 | 北京思特奇信息技术股份有限公司 | Telecommunication service processing method and system |
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| CN101197739B (en) * | 2006-12-08 | 2011-03-16 | 中兴通讯股份有限公司 | Transmission system of mobile multimedia broadcast electric service instruction |
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| US5774811A (en) * | 1995-04-06 | 1998-06-30 | Nec Corporation | Mobile radio communication method |
| CN1705257A (en) * | 2004-06-01 | 2005-12-07 | 三星电子株式会社 | Control method, apparatus and medium for service display using fast information channel in dab receiver |
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Address after: 201203 1st, 6th and 7th floors, building 2, No. 1761, Zhangdong Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201203 Patentee after: Shanghai Li Ke Semiconductor Technology Co.,Ltd. Address before: Room b412, 4th floor, building 3, 1258 Mingyue Road, China (Shanghai) pilot Free Trade Zone Patentee before: Shanghai Li Ke Semiconductor Technology Co.,Ltd. |