CN101521852B - Mobile digital television broadcasting method of mobile digital TV broadcasting system - Google Patents
Mobile digital television broadcasting method of mobile digital TV broadcasting system Download PDFInfo
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- CN101521852B CN101521852B CN 200910038169 CN200910038169A CN101521852B CN 101521852 B CN101521852 B CN 101521852B CN 200910038169 CN200910038169 CN 200910038169 CN 200910038169 A CN200910038169 A CN 200910038169A CN 101521852 B CN101521852 B CN 101521852B
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Abstract
The invention provides a wireless comprehensive router, which comprises a wide area network access module, a routing module, a resource preservation module and a UWB access module which are connected in sequence. The mobile digital television broadcasting system comprises a mobile digital television receiving module and a television program management module for broadcasting a received television program for a user which are connected, based on the wireless comprehensive router, wherein the mobile digital television receiving module comprises at least one mobile television receiving card whichindependently receives the television program; and the television program management module is connected with the routing module. The invention also relates to a method for broadcasting the mobile di gital television. The wireless comprehensive router, the mobile digital television broadcasting system and the method thereof can provide Internet access and digital television broadcasting service for a close-in computer, a netbook, a PDA and the like, and the computer, the netbook and the like only require to be configured with a UWB network card without a mobile digital television receiving card. Compared with the prior art, the wireless comprehensive router, the mobile digital television broadcasting system and the method thereof are more convenient for use, and have lower cost and better signals.
Description
Technical field
The present invention relates to a kind of mobile digital TV player method, the particularly a kind of mobile digital TV player method that can support the employing mobile digital television broadcasting system that closely high-speed wireless access and mobile digital TV cover simultaneously.
Background technology
In recent years, easily PC, net book, UMPC etc. cheaply mobile computing device be subjected to people's attention day by day.These mobile computing devices are core with the function of surfing the Net, can realize surfing on the net, receiving and dispatching mail, instant messages, playing stream media and functions such as music, easy game, compare with notebook computer that cost is lower, bulking value is littler, compare with mobile phone that then screen is bigger, input is more convenient, in practice broad market prospect.
One of Core Feature of above-mentioned low-cost mobile computing device is to get online without being tethered to a cable, and has all adopted the wireless Internet access mode of WiFi in the present product basically.WiFi is one of wireless local networking technology of present main flow, (802.11g standard transmission distance for example commonly used can reach 100 meters to have advantages such as coverage is wide, transmission rate is good, networking is convenient, transmission rate 54Mbps), being highly suitable for occasion such as family uses.But the WiFi technology also exists the some shortcomings part in actual applications: the number of users that (1) is supported is few.Because the transmission channel of WiFi is that competition is shared, each user's transmission rate can be index decreased along with the increase of number of users, has limited the number of users that system can support, can only be used for the occasion of small number of users; (2) transmission rate is still not high enough concerning some are used.The transmission rate of WiFi can't satisfy the requirement of some application, for example transmission of high definition video signal etc.; (3) be easy to generate interference each other.When the coverage of different WiFi networks has when overlapping, can produce interference each other, because the distance of WiFi transmission generally can reach tens meters, so the situation of the WiFi network generation phase mutual interference in the same building is very common.
Mobile digital TV is a kind of tv wireless broadcast system that receives towards portable set Digital Television such as PDA, mobile phone, MP4 and audio signal of releasing in recent years, as long as mobile computing devices such as net book add a reception of Mobile Digital TV card and can watch many cover TV programme easily, strengthened significantly that it is recreational.But present mobile digital TV system also exists certain deficiency: (1) indoor received signal is bad.When receiving card during in indoor use, the phenomenon of signal interruption usually can take place.This shortcoming has brought very big inconvenience in indoor use for mobile computing device; (2) need a machine one card, promptly every equipment need be equipped with a receiving card and just can receive TV programme, has increased the hardware complexity and the cost of equipment.
Summary of the invention
That primary and foremost purpose of the present invention is is not high enough at the WiFi network access speed in the present low-cost mobile computing device, easily shortcomings such as phase mutual interference take place, and a kind of mobile digital TV player method that adopts mobile digital television broadcasting system is provided.
The mobile digital TV signals player method of employing mobile digital television broadcasting system provided by the present invention; Described mobile digital television broadcasting system is based on wireless comprehensive router, the TV programme administration module that the TV programme that also comprises the reception of Mobile Digital TV module and be used for being received is play to the user, described reception of Mobile Digital TV module is connected with the TV programme administration module; Wherein the reception of Mobile Digital TV module comprises the mobile TV receiving card of at least one independent received television program; Described wireless comprehensive router comprises wide area network access module, routing module, resource reservation module, the radio access module that connects in turn, and described radio access module is the UWB access module, and described TV programme administration module is connected with described routing module; Specifically comprise following steps:
A. the software and hardware of initialization mobile digital television broadcasting system, and in the TV programme administration module initialization broadcast program list and watch user list;
B. the user in the local area network (LAN) sends the request of TV reception to the TV programme administration module;
C. after the TV programme administration module receives this user's request, check that at first TV programme that this customer requirements watches is whether in current broadcast program list: if the TV programme that customer requirements is watched in current broadcast program list, is then accepted user's request and upgraded the user profile of watching program of current record; If the TV programme that customer requirements is watched is not in current broadcast program list, and the TV programme sum of current broadcast reached the maximum number of setting, then refuse this user's request; If the TV programme that customer requirements is watched is not in current broadcast program list, and the TV programme sum of current broadcast does not reach the maximum number of setting, then at first send resource reservation request to the resource reservation module by routing module, the required bandwidth of this cover TV programme is play in application, if bandwidth application success, then controlling the reception of Mobile Digital TV module increases the reception of this programs, and upgrade the broadcast program of current record and the user profile of watching program, the request of refusing user's if the bandwidth application is unsuccessful;
D. the TV programme administration module passes through the audio/video flow that the reception of Mobile Digital TV module receives all the mobile digital TV programs in the broadcast program list, and audio/video flow is watched users' transmission of program by routing module to all;
E. after the user receives the audio/video flow that mobile digital television broadcasting system sends over, isolate the audio/video flow of the TV programme that user wherein need watch, and play after its decompression separated by client-side program;
The renewal of the described user profile of step c in two kinds of situation, a kind of is that this user is in watching user list, related information between this user that this moment deletion is write down and the TV programme of watching before this, and this user and current TV programme of watching are carried out new related; Another kind be this user not in watching user list, this moment newly-increased record, in order to registering this user's IP address information, and this user is related with current TV programme of watching.
Preferably, the TV programme administration module is watched the user multicast of program by routing module to all with audio/video flow in the steps d.
Above-mentioned player method comprises that further step f. TV programme administration module receives the request that user in a certain local area network (LAN) stops TV reception, or detect with a certain local area network (LAN) in the user disconnect time of being connected and surpass preset value, then delete this user profile that is write down, and check whether the TV programme that this user watches has not had other user to receive, stop to receive this TV programme, delete the information of this TV programme that is write down and notify the resource reservation module to discharge the corresponding bandwidth resource if then control the reception of Mobile Digital TV module.By step f, the present invention can delete the TV program information and the user profile of no longer watching in time, for request of next step response user ready, thereby can improve the utilance of Internet resources and mobile digital TV program to greatest extent.
The step of resource reservation resume module reserve requests comprises among the step c:
1) the TV programme administration module sends the resource reservation application of playing newly-increased TV programme to the resource reservation module, and this application comprises the newly-increased needed QoS information of TV programme of playing; The QoS full name is Quality ofService, i.e. service quality;
2) whether the current remaining bandwidth that is connected with UWB subnet user of resource reservation module check is greater than the bandwidth that is used to play newly-increased TV programme of TV programme administration module application, if, then play newly-increased TV programme and reserve bandwidth resources for the TV programme administration module, and the success of notice TV programme administration module resource reservation; If not, then resource reservation failure;
3) after the resource reservation success, the TV programme administration module uses the bandwidth of reserving to carry out the broadcast of TV programme, and when this cover TV programme there was not user in the local area network (LAN) to watch, the resource reservation module discharged the bandwidth resources of this signal post's reservation.
Type of action of the present invention is: the wide area network access module can adopt wired Wide Area Network interface, also can adopt wireless Wide Area Network interface, and purpose is to provide interface for the present invention inserts wide area network; The reception of Mobile Digital TV module is finished the reception of some cover TV programs; The TV station that TV programme administration module control reception of Mobile Digital TV module receives, and the user multicast that the TV programme audio/video flow that receives is watched to needs by routing module; Routing module is realized route calculating of the present invention and management function; Resource reservation management when resource reservation module realization UWB subnet is communicated by letter with the TV programme administration module with wide area network; The UWB access module provides interface for the present invention with being connected of UWB subnet user.A plurality of users are TV reception simultaneously, and can many covers be arranged for the program that the user selects to watch in the same time, can watch simultaneously that specifically how many programs are then decided by the receiving card quantity that comprises in the reception of Mobile Digital TV module; 4 receiving cards are for example arranged, and then the reception of Mobile Digital TV module can provide 4 programs to select for a plurality of users in the UWB subnet simultaneously.A plurality of users can shared one or more reception of Mobile Digital TV cards, if there are 5 users to think TV reception in the UWB subnet, then can have 2 users to watch a wherein programs jointly, and all the other 3 users watch all the other 3 programs respectively.
By the technical scheme of the invention described above and type of action as can be known, compared with prior art the present invention has following beneficial effect:
1, the present invention can provide Internet to insert for in-plant computer, net book, PDA etc. and Digital Television broadcast service simultaneously, computer, net book, PDA etc. only need to be equipped with a UWB network interface card, do not need the reception of Mobile Digital TV card, compared with prior art use more conveniently, cost is lower.
2, the present invention adopts the computing equipment in UWB technology and the local area network (LAN) to carry out the transmission of Internet data or digital television signal, compares with technology such as WiFi, has the transmission rate height, supports intensive user, advantage such as the phase mutual interference is little.UWB can provide in 10 meters scope and be up to the 480Mbps message transmission rate, far above the 54Mbps of 802.11g, can satisfy the needs that comprise that the great majority of HD video in being transmitted in are used; Can ad hoc networking between the node of UWB, its transmission rate is along with the increase of number of users is the linear relation that descends, and the channel that exceeds direct transmission range can reuse, and the number of users of its support had significantly than WiFi improve; Because the operating distance of UWB is short, can not penetrate wall, therefore two internetwork phase mutual interference are also less, can provide Internet to insert for computing equipments such as the computer in the overlay area, net book, PDA easily and Digital Television broadcast service, be specially adapted to the intensive application scenarios of user such as multi-media classroom, laboratory, library.
3, the present invention adopts the mode of shared one or several reception of Mobile Digital TV cards of a plurality of users, when number of users is more, can save the cost of system significantly, simultaneously because the present invention can be installed in fixing place, therefore the mobile digital reception antenna can be placed in advance the good place of received signal (for example outside window), make indoorly also can receive good TV signal.
Description of drawings
Fig. 1 is the hardware block diagram of the embodiment of the invention 1;
Fig. 2 is the hardware block diagram of the embodiment of the invention 2;
Fig. 3 is the hardware block diagram of the embodiment of the invention 3;
Fig. 4 is a mobile digital TV player method flow chart among the embodiment of the invention 1-3.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment 1
Embodiments of the invention 1, its hardware configuration as shown in Figure 1, constitute jointly by wide area network access module 101, routing module 102, resource reservation module 103, UWB access module 104, TV programme administration module 105, reception of Mobile Digital TV module 106, video input module 111, wherein wide area network access module, routing module, resource reservation module, UWB access module connect in turn, reception of Mobile Digital TV module, TV programme administration module, routing module connect in turn, and video input module is connected with the TV programme administration module.The wide area network access module provides interface for the present invention inserts wide area network, adopts the adsl interface circuit to realize, also can adopt wireless Wide Area Network interface circuit to realize, for example places in circuit such as GPRS MODEM, 3GMODEM; Routing module is realized route calculating of the present invention and management function, adopts cpu chip to realize; Resource reservation management when resource reservation module realization UWB subnet is communicated by letter with the TV programme administration module with wide area network adopts dsp chip to realize; The UWB access module provides interface for the present invention with being connected of UWB subnet user, be made of jointly the UWB MAC control module 107, UWB physical layer control module 108, the UWB antenna 109 that connect in turn, wherein the physical layer control module of UWB and MAC control module adopt AL 4100 and AL4300 chip to realize respectively; The reception of Mobile Digital TV module is finished the reception of the audio/video flow of some cover TV programs, in the foregoing description, this module comprises the mobile TV receiving card 110 of 4 independent received television programs, can play for the user provides the different TV programme of 4 covers simultaneously at most; The TV station that TV programme administration module control reception of Mobile Digital TV module receives, and, adopt dsp chip to realize with the user multicast that the TV programme audio/video flow that receives is watched to needs by routing module; Video input module 111 is connected with the video output of external video source (as VCD, DVD etc.), in order to receive outside video input, the TV programme administration module with this vision signal the same with mobile digital TV signals as one the cover TV programme play to the user, import for digital video, video input module adopts the digital visual interface circuit to realize, for the analog video input, video input module adopts video frequency collection card to realize.
In the present embodiment, since UWB subnet user each other and with the present invention between communicate by letter and adopted distributed resource reservation protocol (DRP), promptly the bandwidth resources that this signal post needs need be made an appointment and reserve to communicating pair before communication, the resource contention formula transmission means that is adopted with wide area network does not match, therefore when UWB subnet user and wide area network communicate, need realize the conversion of communication mode between the two by the resource reservation module.
The resource reservation module is set up a resource reservation table when initialization, the situation of resource reservation when being used for minute book embodiment and working.When UWB subnet user need adopt following steps to realize the reservation management of resource when the wan user sends data:
(1) UWB subnet user sends resource reservation request to present embodiment, and this request comprises this needed QoS information of communicating by letter.
(2) the UWB access module of present embodiment receives application, and it is submitted to the resource reservation module.The resource reservation module is according to the current bandwidth resources of having reserved of resource reservation table record, calculate the current remaining bandwidth that is connected with wide area network of present embodiment, remaining bandwidth is that the maximum link bandwidth of present embodiment and wide area network deducts the bandwidth sum that all have been reserved.If the current residual bandwidth is greater than the bandwidth of UWB subnet user applies, present embodiment reserves bandwidth resources for this communication of this user, and promptly the resource reservation module is added corresponding resource reservation record in the resource reservation table, and the notice user resources are preengage successfully; If the current remaining bandwidth that is connected with wide area network of present embodiment is less than the bandwidth of user applies, then reservation is failed, and the user need file an application once more.
(3) the UWB subnet user of resource reservation success uses the bandwidth of present embodiment reservation to send data to the wan user, after communication finishes, the resource reservation module discharges the bandwidth resources that this signal post reserves, i.e. the corresponding resource reservation record of deletion in the resource reservation table.
When the wan user sends data to UWB subnet user, have reservation pattern and non-reservation pattern, the reservation pattern adopts following steps:
(1) wan user sends the resource reservation application to present embodiment, and this application comprises this needed QoS information of communicating by letter.
(2) after present embodiment receives wan user's resource reservation application by the wide area network access module, the resource reservation module is calculated the current remaining bandwidth that is connected with target UWB subnet user of present embodiment, and promptly the maximum link bandwidth of present embodiment and wide area network deducts the bandwidth sum that all have been reserved.If the current remaining bandwidth that is connected with target UWB subnet user of present embodiment is less than the bandwidth of wan user's application, then reservation is failed, and the wan user need file an application once more.
(3) if the bandwidth that the current remaining bandwidth that is connected with target UWB subnet user of present embodiment is applied for greater than the wan user, the resource reservation module sends the resource reservation application by the UWB access module to target UWB subnet user node, if the remaining bandwidth of the current communication of target UWB subnet user node less than the application bandwidth the time, the reservation of notice resource reservation module is unsuccessful, and the resource reservation module notifies the wan user to preengage failure.
(4) when the reservation of step (2) and (3) success, the resource reservation module reserves bandwidth resources for this communication of this wan user, promptly adds corresponding resource reservation record in the resource reservation table, and notifies the success of wan user's resource reservation.
(5) wan user of the resource reservation success bandwidth of using the present invention to reserve sends data to target UWB subnet user, after communication finishes, the resource reservation module discharges the bandwidth resources that this signal post reserves, i.e. the corresponding resource reservation record of deletion in the resource reservation table.
When wide area network sent data to UWB subnet user, non-reservation pattern adopted following method:
1, after wan user's data were sent to present embodiment, the resource reservation module sent the resource reservation application by the UWB access module to target UWB subnet user node.
If the remaining bandwidth of the current communication of 2 target UWB subnet user nodes is during greater than the bandwidth of application, notice resource reservation module is preengage successfully, and present embodiment is about to wide area network data and sends to target UWB subnet user node.
If the remaining bandwidth of the current communication of 3 target UWB subnet user nodes is less than reservation during bandwidth application, the reservation failure.If the number of times of reservation failure surpasses predetermined value, present embodiment abandons this packet.
Embodiment 2
The hardware configuration of present embodiment increases the local area ethernet access module as shown in Figure 2 on the basis of embodiment 1, this module is connected with routing module, is used to insert the computing equipment of ethernet local area network standard.
Embodiment 3
The hardware configuration of present embodiment has increased the WiFi WLAN access module that is connected with routing module, the computing equipment that has the WiFi function in order to access as shown in Figure 3 on the basis of embodiment 1.
Among the foregoing description 1-3, the user is connected with router by UWB, Ethernet or WiFi, constitutes LAN.User in the local area network (LAN) is TV reception if desired, the client-side program of on computing equipments such as employed computer, net book, PDA, installing at first, this program is finished communicating by letter between aforementioned calculation equipment and the TV programme administration module 105, and can select the user in the TV programme audio/video flow that Play System sends by user's request and want that the TV programme audio/video flow of watching decodes and play.Wherein the flow process of Bo Fanging as shown in Figure 4, concrete steps are as follows:
(1) comprised the Play System start of wireless comprehensive router after, carry out the initialization of software and hardware, and in TV programme administration module 105 initialization broadcast program list and watch user list, respectively in order to the information (comprising information such as user's IP address) of the LAN subscriber that writes down current in progress TV programme and TV reception, TV programme administration module 105 uses a fixed IP addresses, and the computing equipment in the local area network (LAN) can communicate according to this IP address and TV programme administration module.
When (2) user in the local area network (LAN) needs TV reception, send the request of TV reception to the TV programme administration module.Be specially: at first start client-side program, client-side program and TV administration module 105 connect, and obtain current broadcast program list and all mobile the rendition lists that can receive by TV administration module 105, show to the user.The TV programme that the user oneself likes according to above-mentioned Information Selection sends the request that receives this TV programme by client-side program to TV programme administration module 105.When the user need change the TV programme of being watched, send the request that receives certain specific TV programme by client-side program to TV administration module 105 equally.
(3) after the TV programme administration module 105 in the router receives user's request, at first check TV programme that this customer requirements watches whether in current broadcast program list, promptly whether in broadcast:
If the TV programme that customer requirements is watched in current broadcast program list, is then accepted user's request and is upgraded current information of watching the program user.The renewal of user profile in two kinds of situation, a kind of is that this user is watching certain TV programme before, promptly in watching user list, need to delete the related information between this user who is write down and the TV programme of the watching before this this moment, and this user and current TV programme of watching are carried out new related, promptly change platform; Another kind is a TV reception not before this user, promptly not in watching user list, needs newly-increased record this moment, in order to registering information such as this user's IP address, and this user is related with current TV programme of watching.
If the TV programme that customer requirements is watched is then checked the sum of the in progress program in the present broadcast program list not in current broadcast program list,, then refuse this user's request if the sum of broadcast program reaches the maximum number of setting.The program number ability decision that the maximum number of broadcast program can be received simultaneously by the reception of Mobile Digital TV module, for example among the embodiment 1, the reception of Mobile Digital TV module comprises 4 mobile TV receiving cards, therefore can receive 4 cover TV programs at most simultaneously.
If the TV programme that customer requirements is watched is not in current broadcast program list, and the sum of current playing program does not reach the maximum number of setting, then at first send resource reservation request to resource reservation module 103, the required bandwidth of this cover TV programme is play in application, if bandwidth application success, then controlling reception of Mobile Digital TV module 106 increases the reception of this programs, and in present broadcast program list, add the information of the TV programme that new record increases newly with registration, check that simultaneously the user is whether in watching user list.If watching certain TV programme before this user, then delete related between this user and the TV programme of watching before this, and this user and current TV programme of watching are carried out related, promptly change platform; If this user is not in current watching in the user list, a then newly-increased record to be registering information such as this user's IP address, and this user is related with current TV programme of watching.If reserve requests is unsuccessful, i.e. bandwidth application is unsuccessful, the then request of refusing user's, the requirement of promptly changing platform.
(4) TV programme administration module 105 receives the audio/video flow of all the mobile digital TV programs in the broadcast program list by reception of Mobile Digital TV module 106, and they is merged into a data flow direction watch that all User IPs in the user list carry out multicast.Multicasting technology is one of three kinds of modes of IP network transfer of data, it can realize between sender and each recipient that point-to-point configuration connects, transmit identical data for simultaneously a plurality of recipients for the sender and only need duplicate a identical data packet, compare with clean culture and to have improved data-transmission efficiency, reduced network and congested possibility occurred.
(5) after the user receives the program stream that mobile digital television broadcasting system sends over, isolate the audio/video flow of the TV programme that user wherein need watch, and play after its decompression separated by client-side program.
(6) watch when finishing as a certain user, send the request that stops to watch to the TV programme administration module by client-side program, after TV programme administration module 105 receives this user's request, this user is deleted from watch user list, and check whether its TV programme of watching has not had the user to receive, stop to receive this program if then control reception of Mobile Digital TV module 106, the relevant information of this program that writes down in the deletion broadcast program list also notifies the resource reservation module to discharge the corresponding bandwidth resource.
Unusually withdraw from back TV programme administration module 105 for fear of the user and still send TV program stream to it, TV programme administration module 105 regularly detects current connection status of watching in the user list all users and network by routing module 102, when detect a certain user disconnect with router be connected above predefined time the time, TV programme administration module 105 is deleted this user from receive user list, and check whether its TV programme of watching has not had the user to receive, stop to receive this program if then control reception of Mobile Digital TV module 106, and the relevant information of this program that writes down in the deletion broadcast program list.
In above-mentioned steps (3), the TV programme administration module increases new TV programme when playing, and need play the bandwidth resources of newly-increased TV programme to the application of resource reservation module, and its step is as follows:
1) the TV programme administration module sends the resource reservation application to the resource reservation module, and this application comprises the newly-increased needed QoS information of TV programme of playing;
2) whether the current remaining bandwidth that is connected with UWB subnet user of resource reservation module check is greater than the bandwidth that is used to play newly-increased TV programme of TV programme administration module application, if, then play newly-increased TV programme and reserve bandwidth resources for the TV programme administration module, and the success of notice TV programme administration module resource reservation; If not, then resource reservation failure;
3) after the resource reservation success, the TV programme administration module uses the bandwidth of reserving to carry out the broadcast of TV programme, and when this cover TV programme there was not the user to watch, the resource reservation module discharged the bandwidth resources that this signal post reserves.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (4)
1. adopt the mobile digital TV player method of mobile digital television broadcasting system; Described mobile digital television broadcasting system is based on wireless comprehensive router, the TV programme administration module that the TV programme that also comprises the reception of Mobile Digital TV module and be used for being received is play to the user, described reception of Mobile Digital TV module is connected with the TV programme administration module; Wherein the reception of Mobile Digital TV module comprises the mobile TV receiving card of at least one independent received television program; Described wireless comprehensive router comprises wide area network access module, routing module, resource reservation module, the radio access module that connects in turn, and described radio access module is the UWB access module, and described TV programme administration module is connected with described routing module; It is characterized in that may further comprise the steps:
A. the software and hardware of initialization mobile digital television broadcasting system, and in the TV programme administration module initialization broadcast program list and watch user list;
B. the user in the local area network (LAN) sends the request of TV reception to the TV programme administration module;
C. after the TV programme administration module receives this user's request, check that at first TV programme that this customer requirements watches is whether in current broadcast program list: if the TV programme that customer requirements is watched in current broadcast program list, is then accepted user's request and upgraded the user profile of watching program of current record; If the TV programme that customer requirements is watched is not in current broadcast program list, and the TV programme sum of current broadcast reached the maximum number of setting, then refuse this user's request; If the TV programme that customer requirements is watched is not in current broadcast program list, and the TV programme sum of current broadcast does not reach the maximum number of setting, then at first send resource reservation request to the resource reservation module by routing module, the required bandwidth of this cover TV programme is play in application, if bandwidth application success, then controlling the reception of Mobile Digital TV module increases the reception of this programs, and upgrade the broadcast program of current record and the user profile of watching program, the request of refusing user's if the bandwidth application is unsuccessful;
D. the TV programme administration module passes through the audio/video flow that the reception of Mobile Digital TV module receives all the mobile digital TV programs in the broadcast program list, and audio/video flow is watched users' transmission of program by routing module to all;
E. after the user receives the audio/video flow that mobile digital television broadcasting system sends over, isolate the audio/video flow of the TV programme that user wherein need watch, and play after it is decompressed by client-side program;
The renewal of the described user profile of step c in two kinds of situation, a kind of is that this user is in watching user list, related information between this user that this moment deletion is write down and the TV programme of watching before this, and this user and current TV programme of watching are carried out new related; Another kind be this user not in watching user list, this moment newly-increased record, in order to registering this user's IP address information, and this user is related with current TV programme of watching.
2. mobile digital TV player method according to claim 1 is characterized in that: the TV programme administration module is watched the user multicast of program by routing module to all with audio/video flow in the steps d.
3. mobile digital TV player method according to claim 1 is characterized in that: the step of resource reservation resume module reserve requests comprises among the step c:
1) the TV programme administration module sends the resource reservation application of playing newly-increased TV programme to the resource reservation module;
2) whether the current remaining bandwidth that is connected with UWB subnet user of resource reservation module check is greater than the bandwidth that is used to play newly-increased TV programme of TV programme administration module application, if, then play newly-increased TV programme and reserve bandwidth resources for the TV programme administration module, and the success of notice TV programme administration module resource reservation; If not, then resource reservation failure;
3) after the resource reservation success, the TV programme administration module uses the bandwidth of reserving to carry out the broadcast of TV programme, and when this cover TV programme there was not user in the local area network (LAN) to watch, the resource reservation module discharged the bandwidth resources of this signal post's reservation.
4. according to each described mobile digital TV player method among the claim 1-3, it is characterized in that further comprising step:
F. the TV programme administration module receives the request that user in a certain local area network (LAN) stops TV reception, or detect with a certain local area network (LAN) in the user disconnect time of being connected and surpass preset value, then delete this user profile that is write down, and check whether the TV programme that this user watches has not had other user to receive, if then control the information that the reception of Mobile Digital TV module stops to receive this TV programme and deletes this TV programme that is write down.
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| CN 200910038169 CN101521852B (en) | 2009-03-24 | 2009-03-24 | Mobile digital television broadcasting method of mobile digital TV broadcasting system |
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| CN 200910038169 CN101521852B (en) | 2009-03-24 | 2009-03-24 | Mobile digital television broadcasting method of mobile digital TV broadcasting system |
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| CN102231862A (en) * | 2011-06-30 | 2011-11-02 | 张力军 | Method for performing joint broadcast by using radio and television network and mobile data network |
| CN103152533A (en) * | 2011-12-07 | 2013-06-12 | 王亚军 | Receiving device and receiving method for terrestrial digital television |
| CN103945232A (en) * | 2014-03-17 | 2014-07-23 | 深圳创维－Rgb电子有限公司 | Television resource scheduling method and device |
| CN105704549A (en) * | 2014-11-24 | 2016-06-22 | 中兴通讯股份有限公司 | Bandwidth control method and device |
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| CN1885914A (en) * | 2005-06-21 | 2006-12-27 | 海尔集团公司 | Transmitter and receiver for wireless high-definition television signal |
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| CN101521852A (en) | 2009-09-02 |
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