CN101459483B - Method, transmission point and system for implementing urban digital broadcast - Google Patents
Method, transmission point and system for implementing urban digital broadcast Download PDFInfo
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- CN101459483B CN101459483B CN2007101790712A CN200710179071A CN101459483B CN 101459483 B CN101459483 B CN 101459483B CN 2007101790712 A CN2007101790712 A CN 2007101790712A CN 200710179071 A CN200710179071 A CN 200710179071A CN 101459483 B CN101459483 B CN 101459483B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method for realizing the urban digital broadcasting, which comprises obtaining data needing to be broadcasted by emission points, broadcasting the obtained data within the range covered by the emission points in a short-distance wireless communication mode, receiving related data subscribed by a terminal in the data by the terminal, and then watching received data off line by the terminal. The invention further provides an emission point for realizing the urban digital broadcasting and a system thereof, and the method, the emission point and the system thereof use the short-distance wireless communication technology, and has low power, high transmission speed, and low networking cost and convenient operation.
Description
Technical field
The present invention relates to the urban digital broadcast technology, relate in particular to a kind of method, launch point and system that realizes urban digital broadcast.
Background technology
In the prior art, the scheme that realizes urban digital broadcast has a variety of, below introduces wherein several kinds of schemes that realize the urban digital broadcast systems respectively:
A kind of scheme is new digit broadcasting system; Like hand-held digital video broadcast (DVB-H), T-DMB (T-DMB) etc.; Wherein, DVB-H is the transmission standard that provides multimedia service to work out to handheld terminal for through the received terrestrial digital broadcasting network; The DVB-H system relies on the DVB-T transmission system, makes handheld terminal can stably receive broadcast television signal through increasing certain additional function and improvement technology, and DVB-H can guarantee portable terminal receiving digital television program under mobile environment and little power consumption condition.The T-DMB system comprises a DMB surveillance, two video encoders, video gateway and multiplexers, and flexible services can be provided, and comprises video broadcasting, audio broadcasting, independent traffic/news/weather channel.T-DMB utilizes ITU-T H.264 video to be encoded; Utilize dynamic image expert group (MPEG)-4 bit sliced algorithm coding (BSAC) that audio frequency is encoded, utilize MPEG-4 layer, sync and mpeg 2 transport stream that video, audio frequency and extra data are handled then.Above-mentioned two kinds of systems all can realize covering the mobile broadcast net of whole city, but special-purpose frequency spectrum resource is used at the terminal that this radio network needs the user more to renew, and simultaneously, also need set up the very big launching tower of power, not environmental protection and networking difficulty.
Another kind of scheme is in existing mobile communications system, to add broadcast channel; Realize broadcast capability to a certain degree; Like multimedia broadcast-multicast service (MBMS) in the WCDMA (WCDMA) etc.; The shortcoming of this scheme is: the frequency spectrum resource to GSM expends greatly, broadcasting-quality is not high and necessary and wireless wide area network binding, and is very dumb.
In addition, also having a kind of scheme is the note system that utilizes in the GSM, and simple press service etc. is provided; But; This scheme need consume the frequency spectrum resource of GSM, and simple information service such as weather forecast, news etc. can only be provided, and speed is extremely low.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method, launch point and system that realizes urban digital broadcast, and power is low, transmission rate is high, and the cost of building a station low, be convenient to the operation.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method that realizes urban digital broadcast, be applied to comprise that this method comprises in the network of at least one launch point:
Obtain the data that need broadcasting;
In the scope that launch point was covered, broadcast the data of being obtained with the short-distance wireless communication mode; The terminal receives the related data of self subscribing in the said data.
Wherein, when confirming that there is packet loss in the received data in terminal, this method further comprises: when launch point was broadcasted identical data once more with the short-distance wireless communication mode, the terminal received by the broadcast data of packet loss.
This method further comprises: the terminal off-line is watched received data.
Said obtaining needs the data of broadcasting to be specially:
Launch point obtains from the memory cell of self; Or,
Launch point obtains from other launch points through network; Or,
Launch point obtains from the server that broadcast data is provided through network.
Said short-distance wireless communication mode is: WLAN WiFi or ultrawideband UWB or high speed bluetooth Bluetooth technology.
The present invention provides a kind of launch point of realizing urban digital broadcast simultaneously, and this launch point comprises: broadcast data acquisition module, message protocol packetization module and wireless processing module, wherein,
The broadcast data acquisition module is used to obtain the data that need broadcasting;
Wireless processing module is used for the data that receive are outwards sent with the short-distance wireless communication mode.
Wherein, said launch point also comprises the message protocol packetization module, after being used for the data that the broadcast data acquisition module sends are encrypted and pack, sends to wireless processing module.
This launch point further comprises:
Memory module, the data that launch point need be broadcasted under being used to store, and carry out data when obtaining when the broadcast data acquisition module, the data of storing are sent to the broadcast data acquisition module.
Wireless processing module is further used for: the authentication information that receiving terminal is sent, and said authentication information sent to authentication module; Also be used for the authentication License Info that receives is sent to the terminal;
Accordingly, this launch point further comprises:
Authentication module is used for the authentication information that receives is carried out authentication, and after through authentication, sends corresponding authentication License Info to wireless processing module.
The present invention provides a kind of system that realizes urban digital broadcast simultaneously, and this system comprises:
At least two launch points, separate between the said launch point, each launch point links to each other with network, and in self coverage, broadcasts the data of being obtained;
Said launch point comprises broadcast data acquisition module and wireless processing module, wherein,
The broadcast data acquisition module is used to obtain the data that need broadcasting;
Wireless processing module is used for the data that receive are broadcasted with the short-distance wireless communication mode.
Wherein, said launch point also comprises the message protocol packetization module, after being used for the data that the broadcast data acquisition module sends are encrypted and pack, sends to wireless processing module.
This system further comprises:
The broadcast data services device is used for providing to each launch point through network the data of its required broadcasting.
Be arranged at the data difference of the launch point broadcasting of different hot spot regions.
Method of the present invention, launch point and system use short-distance wireless communication technology to carry out the broadcasting of data, and power is low, transmission rate is high, need not to apply for frequency spectrum, and need not to build complicated base station, are convenient to operation; Launch point is positioned at different public places, and carries out the setting of broadcasted content according to the demand of public place of living in, when move in different public places at the terminal, can receive different contents; Separate between each launch point, or the isolated existence of launch point, so need not between launch point to be convenient to management synchronously; Overlay area in the urban digital broadcast according to the invention system between each launch point can not intercommunication, and promptly this urban digital broadcast system need not to realize region-wide seamless covering.
Description of drawings
Fig. 1 realizes the method flow sketch map of urban digital broadcast for the present invention;
Fig. 2 realizes the structural representation of the launch point of urban digital broadcast for the present invention.
Embodiment
Main thought of the present invention is: the launch point of broadcasting corresponding contents is set in different hot spot regions, and launch point obtains the data that self need broadcast, and broadcasts with the short-distance wireless communication mode; Arrive the coverage of launch point when the terminal after, receive and store the broadcast data of self subscribing to.
Here, said launch point obtains broadcast data and can obtain from number of ways, such as from network, obtaining, obtaining or the like from the memory cell of self.
Below be described with reference to the accompanying drawings the realization of urban digital broadcast method and launch point among the present invention through specific embodiment.
Fig. 1 realizes the method flow sketch map of urban digital broadcast for the present invention, and the launch point of broadcasting corresponding contents is set in different hot spot regions, and wherein, said broadcasting content corresponding is specially: according to the residing regional broadcast of the launch point relevant content in zone therewith; Or the content type broadcasting content corresponding of the need that are set up according to launch point broadcasting, as shown in Figure 1, this method comprises:
Step 101: launch point obtains the data that self need broadcast, and after the packing data of being obtained, broadcasts in its overlay area with the short-distance wireless communication mode.
Wherein, said hot spot region can be various public places, for example bus station, subway station or the like.Be in the launch point of different hot spot regions, the data of its broadcasting are generally inequality.
Said short-distance wireless communication mode can be WLAN (WiFi), ultrawideband (UWB) or high speed bluetooth Bluetooth technology etc.Set a plurality of launch points can isolate existence, and each obtains the data that self need broadcast since the memory cell of self, needs the renewal of broadcast data at regular intervals in this locality; Also can be independent mutually, be connected to separately on the network, obtain the required data of broadcasting from network, and carry out Data Update as required, need not between each launch point synchronously; Further, each launch point also can obtain the required data of broadcasting from other launch point or networks that can obtain related data, repeats no more here.
The time interval that each launch point institute broadcast data upgrades can independently be set, and also can carry out respective settings as required, and the time interval that each launch point carries out Data Update can set separately, need not identical.Further, when launch point links to each other with network, can the broadcast data services device be set, be used for sending the data that need broadcasting accordingly to launch point at network side; Launch point can initiatively send new data to the request of broadcast data services device and carry out the renewal of broadcast data, also can initiatively be sent the data of new need broadcasting by the broadcast data services device to launch point.
The said data of broadcasting that need can be carried out corresponding setting according to the position at launch point place, and for example, when launch point was positioned at the shopping centre, the data that can broadcast were set to local commercial relevant advertising message; When launch point was positioned at subway station, the data that can broadcast were set to news information or the like; Corresponding launch point carries out periodic broadcast (sites) in turn to the data of needs broadcasting, perhaps, when the data that need broadcasting in the launch point are enough enriched, the broadcast data that the sustainable broadcast of launch point is different, and need not loop play.
Launch point sends the Frame that carries broadcast message to each user terminal, and Frame can generate according to the defined form of table one in packing process:
| Channel identification | Unit's Notation Of Content | The unit content initial/end mark | Bag is long | Broadcasted content |
Table one
In the table one, channel identification is used for designation data frame subordinate channel, for example: when user terminal hopes to receive the content of The Beijing News, use certain sign to represent that this Frame is the related content in The Beijing News in the said channel identification; Unit's Notation Of Content is represented type of data in the current data frame, for example is the picture etc. on literal, video or the newspaper; Unit's content is initial/and whether end mark be used to indicate current first content to finish, or new first content of indication beginning; The long length that is used to indicate current data frame of bag; Broadcasted content is used to place the current data that will broadcast of this launch point.
In practical application, the Frame that launch point sent can according to circumstances carry out corresponding change on the basis that comprises each listed in the table one territory at least.And the Frame that launch point sends can use the for example self-defined form shown in the table one, also can use corresponding data frame format in the prior art, repeats no more here.
In addition, the employed Radio Broadcasting Agreements of launch point also can adopt self-defined form, or uses other known Radio Broadcasting Agreements, and for example UDP (UDP) agreement etc. repeats no more here.
Here, launch point concrete as how the broadcasting of carrying out data of short-distance wireless communication mode belong to known technology, repeat no more here.
Step 102: get into the coverage of launch point when the terminal after, detect self current affiliated launch point.
Wherein, how the terminal detects launch point belongs to known technology, repeats no more here.
Step 103: the terminal obtains self the ordered position of related data in broadcast data.
Said process can send the signaling information that carries similar electronic program list in signaling packet that is similar to electronic program list that defines specially or the data message of the broadcasting through launch point to the terminal through launch point and realize in practical application.
Wherein, said subscription can be used accomplished in many ways, for example:
The terminal use locates in operator, and off-line is subscribed to self interested content, obtains password card or similar qualification authentication sign from operator; In the input terminal; When needs are downloaded, carry out qualification authentication between terminal and the launch point, after the authentication; Launch point sends to the corresponding authentication License Info in terminal, and the decoding of self subscription data that obtains or carry out being obtained of self subscription data is carried out at the terminal according to the authentication License Info that receives;
Online through receiving the said electronic program list of launch point broadcasting; Therefrom choose self interested channel and receive, pay through other modes, for example; Can calculate the flow of the data of at every turn obtaining, from user account, deduct the corresponding amount of money etc. according to flow.
Certainly, just enumerated out two kinds of methods in the operable method above, in practical application, can also use other method for subscribing, repeated no more here.
Step 104: the terminal receives and stores self ordered related data.
Here, formats stored is carried out at the terminal, the reference format that can define in advance for operator; Also can user-defined format, and, according to data protocol form of the prior art; Even can realize lost data frames, do not influence reception, storage and the demonstration of follow-up data yet.
Wherein, have two kinds of situation: the terminal in receiving course, when the coverage of leaving the launch point that is connected when the terminal causes receiving course to finish, perhaps when receiving course is initiatively finished in the terminal, execution in step 106; The terminal receives all one when taking turns in the broadcasting content that needs, and can finish receiving course, and execution in step 106 as still being in the broadcast reception zone, also can continue execution in step 105.
Step 105: the terminal receive all one take turns broadcasting after, if still be in the broadcast reception zone, promptly in the launch point coverage; Then whether inspection received data in terminal exist packet loss; If exist, then from the broadcasting of a new round, obtain the above-mentioned data that do not receive once more.
Step 106: the terminal off-line is watched the broadcasted content that receives.
In above-mentioned steps, step 105,106 is an optional step.
Fig. 2 realizes the structural representation of the launch point of urban digital broadcast for the present invention, and as shown in Figure 2, this launch point comprises: memory module 210, broadcast data acquisition module 220, message protocol packetization module 230 and wireless processing module 240, wherein,
Broadcast data acquisition module 220 is used to obtain the data of needs broadcasting, and the data that get access to are sent to message protocol packetization module 230.
Wherein, when launch points under the said broadcast data acquisition module 220 are isolated when existing, can obtain the broadcasting desired data from the memory module the affiliated launch point 210; When affiliated launch point is connected to network, also can from network, directly obtain related data.
Message protocol packetization module 230 is used for the said data that receive are encrypted and packed, and afterwards, sends to wireless processing module 240.
Wherein, wireless processing module 240 is further used for: the authentication information that receiving terminal is sent, and the said authentication information that will receive sends to authentication module 250.
Wherein, wireless processing module 240 all uses short-distance wireless communication technology that data are handled accordingly when the reception of carrying out data and transmission.
Wherein, memory module 210, authentication module 250 are optional module.
The launch point of above-mentioned some can constitute the urban digital broadcast system, and in this system, said launch point can isolate existence, also can independently be connected on the network mutually.
When said launch point is connected on the network, obtain the data that self need broadcast through network, corresponding, can further include in this system:
The broadcast data services device is used for sending the data that launch point need be broadcasted through network to launch point.
Wherein, the broadcast data services device can initiatively send new broadcast data to launch point through network, also can when launch point is asked, send new broadcast data to corresponding launch point.
Wherein, the overlay area of each launch point is generally less in the system, and the overlay area between each launch point can not intercommunication, and promptly this urban digital broadcast system need not to realize region-wide seamless covering.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (9)
1. a method that realizes urban digital broadcast is applied to comprise in the network of at least one launch point, and it is characterized in that, this method comprises:
The terminal use locates in operator, and off-line is subscribed to self interested content, obtains the qualification authentication sign from operator, in the input terminal;
Launch point obtains the data that need broadcasting;
In the scope that launch point was covered, broadcast the data of being obtained with the short-distance wireless communication mode;
Get into the coverage of launch point when the terminal after, detect self current affiliated launch point, carry out qualification authentication between terminal and the launch point, after the authentication, the terminal receives and also stores self ordered related data; There is packet loss in received data when definite terminal, and when launch point was broadcasted identical data once more with the short-distance wireless communication mode, the terminal received by the broadcast data of packet loss;
Wherein, saidly in the scope that launch point was covered, broadcast the data of being obtained with the short-distance wireless communication mode and be specially: launch point sends the Frame that carries broadcast message to each user terminal, and Frame generates according to following form in packing process:
Wherein, channel identification is used for designation data frame subordinate channel; Unit's Notation Of Content is represented type of data in the current data frame; Unit's content is initial/and whether end mark be used to indicate current first content to finish, or new first content of indication beginning; The long length that is used to indicate current data frame of bag; Broadcasted content is used to place the current data that will broadcast of this launch point;
Wherein, the content of said launch point broadcasting is specially: according to the regional therewith relevant content of the residing regional broadcast of launch point; Or the content type broadcasting content corresponding of the need that are set up according to launch point broadcasting.
2. the method for realization urban digital broadcast according to claim 1 is characterized in that, this method further comprises: the terminal off-line is watched received data.
3. according to the method for each described realization urban digital broadcast of claim 1 to 2, it is characterized in that said obtaining needs the data of broadcasting to be specially:
Launch point obtains from the memory cell of self; Or,
Launch point obtains from other launch points through network; Or,
Launch point obtains from the server that broadcast data is provided through network; Corresponding setting is carried out in the said position that needs the data based launch point place of broadcasting.
4. the method for realization urban digital broadcast according to claim 1 is characterized in that, said short-distance wireless communication mode is: WLAN WiFi or ultrawideband UWB or high speed bluetooth Bluetooth technology.
5. a launch point of realizing urban digital broadcast is characterized in that, this launch point comprises: broadcast data acquisition module, message protocol packetization module and wireless processing module, wherein,
The broadcast data acquisition module is used to obtain the data that need broadcasting;
Wireless processing module is used for the data that receive are outwards sent with the short-distance wireless communication mode; Be used for the authentication information that receiving terminal is sent, and said authentication information is sent to authentication module, said authentication information obtains when locating the interested content of off-line subscription self by the terminal in operator; Also be used for the authentication License Info that receives is sent to the terminal, carry out the decoding of self subscription data that obtains or carry out being obtained of self subscription data by the terminal according to the authentication License Info; Correspondingly, this launch point further comprises: authentication module is used for the authentication information that receives is carried out authentication, and after through authentication, sends corresponding authentication License Info to wireless processing module;
The message protocol packetization module after being used for the data that the broadcast data acquisition module sends are encrypted and pack, sends to wireless processing module, in the packing process, generates Frame according to following form:
Wherein, channel identification is used for designation data frame subordinate channel; Unit's Notation Of Content is represented type of data in the current data frame; Unit's content is initial/and whether end mark be used to indicate current first content to finish, or new first content of indication beginning; The long length that is used to indicate current data frame of bag; Broadcasted content is used to place the current data that will broadcast of this launch point;
Wherein, the content of said launch point broadcasting is specially: according to the regional therewith relevant content of the residing regional broadcast of launch point; Or the content type broadcasting content corresponding of the need that are set up according to launch point broadcasting.
6. the launch point of realization urban digital broadcast according to claim 5 is characterized in that, this launch point further comprises:
Memory module, the data that launch point need be broadcasted under being used to store, and carry out data when obtaining when the broadcast data acquisition module, the data of storing are sent to the broadcast data acquisition module.
7. a system that realizes urban digital broadcast is characterized in that, this system comprises:
The terminal, when being used to store the user off-line being subscribed to self interested content at operator place, the qualification authentication that obtains from operator identifies; Be used for sending authentication information to wireless processing module; Also be used to receive the authentication License Info that wireless processing module is sent, and carry out the decoding of self subscription data that obtains or carry out being obtained of self subscription data according to said authentication License Info;
At least two launch points, separate between the said launch point, each launch point links to each other with network, and in self coverage, broadcasts the data of being obtained;
Said launch point comprises broadcast data acquisition module and wireless processing module, wherein,
The broadcast data acquisition module is used to obtain the data that need broadcasting;
Wireless processing module is used for the data that receive are broadcasted with the short-distance wireless communication mode and are used for the authentication information that receiving terminal is sent, and said authentication information is sent to authentication module; Also be used for the authentication License Info that receives is sent to the terminal; Correspondingly, this launch point further comprises: authentication module is used for the authentication information that receives is carried out authentication, and after through authentication, sends corresponding authentication License Info to wireless processing module;
Further, said launch point also comprises the message protocol packetization module, after being used for the data that the broadcast data acquisition module sends are encrypted and pack, sends to wireless processing module, in the packing process, generates Frame according to following form:
Wherein, channel identification is used for designation data frame subordinate channel; Unit's Notation Of Content is represented type of data in the current data frame; Unit's content is initial/and whether end mark be used to indicate current first content to finish, or new first content of indication beginning; The long length that is used to indicate current data frame of bag; Broadcasted content is used to place the current data that will broadcast of this launch point;
Wherein, the content of said launch point broadcasting is specially: according to the regional therewith relevant content of the residing regional broadcast of launch point; Or the content type broadcasting content corresponding of the need that are set up according to launch point broadcasting.
8. the system of realization urban digital broadcast according to claim 7 is characterized in that, this system further comprises:
The broadcast data services device is used for providing to each launch point through network the data of its required broadcasting.
9. the system of realization urban digital broadcast according to claim 8 is characterized in that, is arranged at the data difference of the launch point broadcasting of different hot spot regions.
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| CN104333797A (en) * | 2013-07-22 | 2015-02-04 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105744487A (en) * | 2016-05-16 | 2016-07-06 | 深圳市呤云科技有限公司 | Broadcast method based on wireless beacon and broadcast device based on wireless beacon |
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