CN102821166B

CN102821166B - The method of multimedia data communication, equipment and system

Info

Publication number: CN102821166B
Application number: CN201210253293.5A
Authority: CN
Inventors: 何瑞峰
Original assignee: Huawei Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2012-07-20
Filing date: 2012-07-20
Publication date: 2015-09-09
Anticipated expiration: 2032-07-20
Also published as: CN102821166A

Abstract

The invention provides a kind of method of multimedia data communication, equipment and system, belong to the communications field, comprising: receive the access request that each user terminal sends; Be respectively each user terminal distributing IP multicast address, the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group; Send the request for obtaining destination multimedia data to mobile multimedia broadcast system, request comprises the channel identication of destination multimedia data; Receive the destination multimedia data that mobile multimedia broadcast system sends; Each user terminal destination multimedia packet is separately broadcasted to each user terminal in same multicast group.By the present invention, can realize by a Mobile Multimedia Broadcasting wireless terminal device simultaneously for multiple user terminal provides multimedia data service.

Description

The method of multimedia data communication, equipment and system

Technical field

The present invention relates to the communications field, particularly relate to a kind of method of multimedia data communication, equipment and system.

Background technology

Mobile multimedia broadcast system is that one can to mobile phone, the multiple user terminal such as notebook computer provides the system of multimedia data service, such as, China Mobile multimedia broadcasting CMMB (China Mobile Multimedia Broadcasting), and Japanese and Latin America mobile TV standard I SDB-T (Integrated Services Digital Broadcasting-Terrestrial), Europe mobile TV standard DVB-T (Digital Video Broadcasting-Terrestrial) and European mobile TV standard DVB-H (Digital Video Broadcasting-Handheld) etc.User is passing through mobile phone, during the user terminal viewing TV programme such as notebook computer, need by a kind of wireless terminal device supporting mobile multimedia broadcast system, this Mobile Multimedia Broadcasting wireless terminal device can by 3G (3rd-generation, G mobile communication) module, WiFi (Wireless Fidelity, Wireless Fidelity) wireless network that forms with CMMB module of module is connected equipment for surfing the net, it receives the television programme data of mobile multimedia broadcast system broadcast by WiFi module, afterwards this television programme data is sent to mobile phone, on the user terminals such as notebook computer, realize the viewing of user to TV programme.

But in prior art, a Mobile Multimedia Broadcasting wireless terminal device can only provide multimedia data service for a user terminal at one time, cannot provide multimedia data service for multiple user terminal simultaneously.

Summary of the invention

Method, the equipment and system of a kind of multimedia data communication that embodiments of the invention provide, can realize by a Mobile Multimedia Broadcasting wireless terminal device simultaneously for multiple user terminal provides multimedia data service.

For achieving the above object, embodiments of the invention adopt following technical scheme:

First aspect, the invention provides a kind of method of multimedia data communication, comprising:

Receive the access request that each user terminal sends, described each access request comprises the channel identication of destination multimedia data and the mark of described user terminal of request viewing;

Be respectively each user terminal distributing IP multicast address described, the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing be divided into same multicast group;

Send the request for obtaining destination multimedia data to mobile multimedia broadcast system, described request comprises the channel identication of destination multimedia data;

Receive the destination multimedia data that described mobile multimedia broadcast system sends;

To described each user terminal destination multimedia packet separately of each user terminal broadcast in same multicast group, the destination multimedia packet of described each user terminal carries the ip multicast address of described user terminal, the destination multimedia data of request and the mark of described user terminal.

In the first possible implementation of first aspect, described before each user terminal destination multimedia packet separately described in each user terminal broadcast in same multicast group, also comprise:

When the destination multimedia data that the mobile multimedia broadcast system received sends are enciphered data, by the described destination multimedia decrypt data received.

In conjunction with the first possible implementation of first aspect or first aspect, in the implementation that the second is possible, described method also comprises:

Determine the first user terminal of first described access request of transmission in same multicast group, and be described first user terminal distribution administration authority, described administration authority is used for carrying out control operation to multimedia programming;

Wherein, described control operation comprises channel switch, multimedia programming orders or multimedia programming is quit the subscription of.

In conjunction with the implementation that the second of first aspect is possible, in the implementation that the third is possible, in the described first user terminal determining first described access request of transmission in same multicast group, and after being described first user terminal distribution administration authority, also comprise:

Receive the control operation request that in described same multicast group, arbitrary user terminal sends;

The information being used for reminding subscriber terminal input control password is sent to described arbitrary user terminal;

Receive the control password that described arbitrary user terminal sends;

When the control password received is identical with the control password that the user terminal with administration authority pre-sets, perform the control operation corresponding with described control operation request;

When the control password that the described control password received and the described user terminal with administration authority pre-set is not identical, to the response sending the user terminal transmission code error controlling password.

The third possible implementation of the implementation possible in conjunction with the second of first aspect or first aspect, in the 4th kind of possible implementation, in the described first user terminal determining first described access request of transmission in same multicast group, and after being described first user terminal distribution administration authority, also comprise:

When receiving the cancellation administration authority request of the user terminal transmission with described administration authority, cancelling the administration authority with the user terminal of described administration authority, and described administration authority being distributed to other the arbitrary user terminals in described same multicast group; Or,

When receive there is described administration authority user terminal send carry the transfer administration authority request of designated user terminal iidentification time, cancel the administration authority with the user terminal of described administration authority, described administration authority is distributed to described designated user terminal, described in there is the user terminal of described administration authority and described designated user terminal belongs to same multicast group.

In conjunction with the first possible implementation of first aspect or first aspect, in the 5th kind of possible implementation, described method also comprises:

Receive the channel switch request that in the first multicast group, arbitrary user terminal sends, described channel switch request comprises the ip multicast address of the channel identication of the destination multimedia data for being switched to, the mark of described user terminal and described user terminal;

Determine the second multicast group that the channel identication of the destination multimedia data for being switched to is corresponding;

The ip multicast address of described user terminal is divided in described second multicast group.

Second aspect, the invention provides a kind of Mobile Multimedia Broadcasting wireless terminal device, comprising:

Wireless communication module, for receiving the access request that each user terminal sends, described each access request comprises the channel identication of destination multimedia data and the mark of described user terminal of request viewing, and described each access request is sent to the control port of multimedia player;

Described multimedia player, for receiving described each access request from described control port, and be respectively each user terminal distributing IP multicast address described, the ip multicast address end of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group;

Described multimedia player, also for sending request for obtaining destination multimedia data by described control port to described wireless communication module, described request comprises the channel identication of destination multimedia data;

Described wireless communication module, also described for obtaining the request of destination multimedia data for receiving from described control port, and send described for obtaining the request of destination multimedia data to mobile multimedia broadcast system;

Described destination multimedia data also for receiving the destination multimedia data that described mobile multimedia broadcast system sends, and are sent to the FPDP of described multimedia player by described wireless communication module;

Described multimedia player, also for receiving described destination multimedia data from described FPDP, and the destination multimedia packet for mailing to each user terminal in same multicast group is sent to described radio receiving terminal by described FPDP, the destination multimedia packet of described each user terminal carries the mark of the ip multicast address of described user terminal, destination multimedia data and described user terminal;

Described wireless communication module, also for receiving the described destination multimedia packet for mailing to each user terminal in same multicast group from described FPDP, and to described each user terminal destination multimedia packet separately of each user terminal broadcast in same multicast group.

In the first possible implementation of second aspect, described equipment also comprises: Mobile Multimedia Broadcasting chip;

Described multimedia player is also for sending to Mobile Multimedia Broadcasting chip by described destination multimedia data by described FPDP;

Described Mobile Multimedia Broadcasting chip, for when described multimedia player is enciphered data from the described destination multimedia data that described FPDP receives, described destination multimedia data are received by described FPDP, by described destination multimedia decrypt data, and the destination multimedia data after deciphering are sent to described FPDP;

Described multimedia player, also for being received the destination multimedia data after described deciphering that described Mobile Multimedia Broadcasting chip sends by described FPDP, and the described destination multimedia packet for mailing to the user terminal in same multicast group is sent to described radio receiving terminal by described FPDP.

In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second is possible, described multimedia player, also for after the described each access request being received the transmission of described control port by described control port, determine the first user terminal of first described access request of transmission in same multicast group, and be described first user terminal distribution administration authority, described administration authority is used for carrying out control operation to multimedia programming;

In conjunction with the first possible implementation of second aspect or second aspect or the possible implementation of the second, in the implementation that the third is possible, described wireless communication module, also for receiving the control operation request that in described same multicast group, arbitrary user terminal sends, and described control operation request is sent to described control port;

Described multimedia player, also for after receiving described control operation request, sends the information being used for reminding subscriber terminal input control password to described wireless communication module by described control port;

Described wireless communication module, also for being received the information being used for reminding subscriber terminal input control password by described control port, and sends the described information for reminding subscriber terminal input control password to described arbitrary user terminal;

Described wireless communication module, also for receiving the control password that described arbitrary user terminal sends, and is sent to described control port by the control password that described arbitrary user terminal sends;

Described multimedia player, also for receiving the control password that described wireless communication module sends from described control port, and when the control password received is identical with the control password that the user terminal with administration authority pre-sets, perform the control operation corresponding with described control operation request;

Described multimedia player, also for receiving the control password that described wireless communication module sends from described control port, and when described in the control password that pre-sets of the control password that receives and the described user terminal with administration authority not identical time, sent the response controlling code error to described wireless communication module by described control port;

Described wireless communication module, also for being received the response of described control code error by described control port, and sends to the user terminal sending and control password by the response of described control code error.

In conjunction with the first possible implementation of second aspect or second aspect or the possible implementation of the second or the third possible implementation, in the 4th kind of possible implementation, described wireless communication module, also for receiving the cancellation administration authority request of the user terminal transmission with described administration authority, and the request of described cancellation administration authority is sent to described control port; Described multimedia player, also for receiving the request of described cancellation administration authority by described control port, cancel the administration authority with the user terminal of described administration authority, and described administration authority is distributed to other the arbitrary user terminals in described same multicast group; Or,

Described wireless communication module, also for receiving the transfer administration authority request carrying designated user terminal iidentification of the user terminal transmission with described administration authority, and the described transfer administration authority request carrying designated user terminal iidentification is sent to described control port; Described multimedia player, also for the transfer administration authority request by carrying designated user terminal iidentification described in described control port reception, cancel the administration authority with the user terminal of described administration authority, described administration authority is distributed to described designated user terminal, described in there is the user terminal of described administration authority and described designated user terminal belongs to same multicast group.

In conjunction with the first possible implementation of second aspect or second aspect, in the 5th kind of possible implementation, described wireless communication module, also for receiving the channel switch request that in the first multicast group, arbitrary user terminal sends, described channel switch request comprises the ip multicast address of the channel identication of the destination multimedia data for being switched to, the mark of described user terminal and described user terminal, and described channel switch request is sent to described control port;

Described multimedia player, also for receiving described channel switch request by described control port, determine according to the channel identication of the destination multimedia data for being switched to the second multicast group that the channel identication of the described destination multimedia data for being switched to is corresponding, and the ip multicast address of described user terminal is divided in described second multicast group.

The third aspect, the invention provides a kind of system of multimedia data communication, comprises above-mentioned Mobile Multimedia Broadcasting wireless terminal device and above-mentioned mobile multimedia broadcast system.

The method of the multimedia data communication that the present embodiment provides, equipment and system, pass through the present invention, make when multiple user terminal is wanted simultaneously by Mobile Multimedia Broadcasting wireless terminal device viewing channels of multimedia data, Mobile Multimedia Broadcasting wireless terminal device can be each user terminal distributing IP multicast address, and the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group, and make Mobile Multimedia Broadcasting wireless terminal device after the destination multimedia data receiving mobile multimedia broadcast system transmission, each user terminal destination multimedia packet is separately broadcasted to each user terminal in same multicast group, thus multiple user terminal can be realized receive destination multimedia data simultaneously.Can only provide compared with multimedia data service for a user terminal at one time with Mobile Multimedia Broadcasting wireless terminal device in prior art, the present invention can realize by a Mobile Multimedia Broadcasting wireless terminal device simultaneously for multiple user terminal provides multimedia data service.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is mobile multimedia broadcast system is the schematic diagram of multiple user terminal transmission multi-medium data by Mobile Multimedia Broadcasting wireless terminal device simultaneously;

The method flow diagram of a kind of multimedia data communication that Fig. 2 provides for the present embodiment 1;

The method flow diagram of a kind of multimedia data communication that Fig. 3 provides for the present embodiment 2;

Fig. 4 is the destination multimedia packet structure schematic diagram that Mobile Multimedia Broadcasting wireless terminal device is broadcasted to user terminal;

Fig. 5 for Mobile Multimedia Broadcasting wireless terminal device that the present embodiment 2 provides be the method flow diagram of user terminal allocation manager authority;

The Mobile Multimedia Broadcasting wireless terminal device that Fig. 6 provides for the present embodiment 2 cancels the administration authority method flow diagram with the user terminal of administration authority;

Administration authority is transferred to the method flow diagram of other user terminals by the Mobile Multimedia Broadcasting wireless terminal device that Fig. 7 provides for the present embodiment 2 from the current user terminal with administration authority;

The method flow diagram of a kind of multimedia data communication that Fig. 8 provides for the present embodiment 3;

Fig. 9 for the Mobile Multimedia Broadcasting wireless terminal device that the present embodiment 3 provides be the method flow diagram that user terminal carries out channel switch;

The another kind of Mobile Multimedia Broadcasting wireless terminal device that Figure 10 provides for the present embodiment 3 is the method flow diagram that user terminal carries out channel switch;

The structure chart of a kind of Mobile Multimedia Broadcasting wireless terminal device that Figure 11 provides for the present embodiment 4;

The structure chart of the another kind of Mobile Multimedia Broadcasting wireless terminal device that Figure 12 provides for the present embodiment 4;

The system construction drawing of a kind of multimedia data communication that Figure 13 provides for the present embodiment 4;

The hardware chart of a kind of Mobile Multimedia Broadcasting wireless terminal device that Figure 14 provides for the present embodiment 5;

The hardware chart of the another kind of Mobile Multimedia Broadcasting wireless terminal device that Figure 15 provides for the present embodiment 5.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

As shown in Figure 1, in a kind of application scenarios of the embodiment of the present invention, when multiple user terminal is to same mobile multimedia broadcast system wireless terminal device request viewing multi-medium data, the request that this mobile multimedia broadcast system wireless terminal device sends according to each user terminal, obtain destination multimedia data from mobile multimedia broadcast system system, and destination multimedia data are sent to the user terminal of request viewing multi-medium data.Wherein, the present embodiment illustrates the present invention to a mobile multimedia broadcast system wireless terminal device request viewing multi-medium data for multiple user terminal.

Wherein, in the present embodiment, mobile multimedia broadcast system can be China Mobile multimedia broadcasting CMMB, and Japanese and Latin America mobile TV standard I SDB-T, European mobile TV standard DVB-T and European mobile TV standard DVB-H etc.; Mobile multimedia broadcast system wireless terminal device can for supporting the wireless terminal device of above-mentioned mobile multimedia broadcast system.Wireless communication module in the present embodiment supports 3G network or WIFI network.

Embodiment 1

See Fig. 2, be the method flow diagram of a kind of multimedia data communication that the present embodiment provides, specifically comprise:

101: Mobile Multimedia Broadcasting wireless terminal device receives the access request that each user terminal sends, each access request comprises the channel identication of destination multimedia data and the mark of user terminal of request viewing.

102: Mobile Multimedia Broadcasting wireless terminal device is respectively each user terminal distributing IP multicast address, and the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group.

Wherein, the multicast group that Mobile Multimedia Broadcasting wireless terminal device divides is at least one.

Optionally, Mobile Multimedia Broadcasting wireless terminal device is respectively the scope of each user terminal distributing IP multicast address is can be 224.0.0.0-239.255.255.255.

103: Mobile Multimedia Broadcasting wireless terminal device sends the request for obtaining destination multimedia data to mobile multimedia broadcast system, request comprises the channel identication of destination multimedia data.

104: Mobile Multimedia Broadcasting wireless terminal device receives the destination multimedia data that mobile multimedia broadcast system sends.

105: Mobile Multimedia Broadcasting wireless terminal device broadcasts each user terminal destination multimedia packet separately to each user terminal in same multicast group, the destination multimedia packet of each user terminal carries the mark of the ip multicast address of user terminal, destination multimedia data and user terminal.

The method of the multimedia data communication that the present embodiment provides, pass through this method, make when multiple user terminal is simultaneously by Mobile Multimedia Broadcasting wireless terminal device viewing channels of multimedia data, Mobile Multimedia Broadcasting wireless terminal device can be each user terminal distributing IP multicast address, and the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group, and make Mobile Multimedia Broadcasting wireless terminal device after the destination multimedia data receiving mobile multimedia broadcast system transmission, each user terminal destination multimedia packet is separately broadcasted to each user terminal in same multicast group, thus multiple user terminal can be realized receive destination multimedia data simultaneously.Can only provide compared with multimedia data service for a user terminal at one time with Mobile Multimedia Broadcasting wireless terminal device in prior art, the present embodiment can realize by a Mobile Multimedia Broadcasting wireless terminal device, quickly and easily simultaneously for multiple user terminal provides multimedia data service, Internet resources can be effectively saved.

Embodiment 2

See Fig. 3, for the method flow diagram of a kind of multimedia data communication that the present embodiment provides, the present embodiment is with three user terminals to Mobile Multimedia Broadcasting wireless terminal device request viewing destination multimedia data, and the channels of multimedia data of request viewing is all example is mutually specifically described the present invention.

A method flow diagram for multimedia data communication, specifically comprises:

201: Mobile Multimedia Broadcasting wireless terminal device receives the access request that three user terminals send, each access request comprises the channel identication of destination multimedia data and the mark of user terminal of request viewing.

It should be noted that, channels of multimedia data is divided into encoded channel and non-encrypted channel, in the present embodiment, for three user terminals ask the destination multimedia data channel watched identical and be specifically described for non-encrypted channel, and the user terminal number that each non-encrypted channel of Mobile Multimedia Broadcasting wireless terminal device can be accessed by most has certain higher limit, in the present embodiment example, the number of user terminal does not all exceed the user terminal number that Mobile Multimedia Broadcasting wireless terminal device can be accessed by most.

Wherein, the channel identication of the destination multimedia data of above-mentioned request viewing can be the channel number of destination multimedia data, such as CCTV1 etc., and channels of multimedia data is used for play multimedia program; The mark of user terminal can be the MAC mark of user terminal, for unique identifying subscriber terminal.

Such as, Mobile Multimedia Broadcasting wireless terminal device receives the first access request, the second access request of user terminal 2 transmission and the 3rd access request of user terminal 3 transmission that user terminal 1 sends; Wherein, the first access request comprises the MAC mark of CCTV1 and user terminal 1, and the second access request comprises the MAC mark of CCTV1 and user terminal 2, and the 3rd access request comprises the MAC mark of CCTV1 and user terminal 3.

202: Mobile Multimedia Broadcasting wireless terminal device is respectively three user terminal distributing IP multicast address, the ip multicast address of three user terminals of above-mentioned request viewing destination multimedia data channel is divided into a multicast group.

Such as, Mobile Multimedia Broadcasting wireless terminal device is the ip multicast address that user terminal 1 distributes is 239.200.105.244, Mobile Multimedia Broadcasting wireless terminal device is the ip multicast address that user terminal 2 distributes is 239.200.105.245, Mobile Multimedia Broadcasting wireless terminal device is the ip multicast address that user terminal 3 distributes is 239.200.105.246, and ip multicast address 239.200.105.244,239.200.105.245 and 239.200.105.246 are divided into a multicast group.

It should be noted that, after this step, Mobile Multimedia Broadcasting wireless terminal device can also send access request response respectively to three user terminals, each access request response comprises the ip multicast address of the user terminal being about to mail to and the mark of this user terminal, so that in follow-up operation, when user terminal to Mobile Multimedia Broadcasting wireless terminal device send request or data time, the ip multicast address of this user terminal and the mark of this user terminal is carried in described request or data, and then make Mobile Multimedia Broadcasting wireless terminal device can determine to send request or the user terminal of data.

203: Mobile Multimedia Broadcasting wireless terminal device sends the request for obtaining destination multimedia data to mobile multimedia broadcast system, and described request comprises the channel identication of destination multimedia data.

Such as, Mobile Multimedia Broadcasting wireless terminal device sends the request for obtaining destination multimedia data to mobile multimedia broadcast system, and described request comprises CCTV1.

204: after mobile multimedia broadcast system receives the request obtaining destination multimedia data, the channel identication according to destination multimedia data sends the destination multimedia data corresponding with the channel identication of destination multimedia data to Mobile Multimedia Broadcasting wireless terminal device.

Such as, the channel identication of destination multimedia data is CCTV1, and mobile multimedia broadcast system sends the multi-medium data of CCTV1 channel to Mobile Multimedia Broadcasting wireless terminal device according to CCTV1.

205: after Mobile Multimedia Broadcasting wireless terminal device receives destination multimedia data, to three user terminal described three user terminals of the broadcast destination multimedia packet separately in this multicast group.

Wherein, the destination multimedia packet of each user terminal carries the mark of the ip multicast address of user terminal, destination multimedia data and user terminal.

Such as, Mobile Multimedia Broadcasting wireless terminal device carries the first packet of the MAC Address of ip multicast address 239.200.105.244, CCTV1 channel multi-medium data and user terminal 1 respectively to user terminal 1 broadcast, carry the second packet of the MAC Address of ip multicast address 239.200.105.245, CCTV1 channel multi-medium data and user terminal 2 to user terminal 2 broadcast, carry the 3rd packet of the MAC Address of ip multicast address 239.200.105.246, CCTV1 channel multi-medium data and user terminal 3 to user terminal 3 broadcast.

Such as shown in Fig. 4, it is the destination multimedia packet structure schematic diagram that Mobile Multimedia Broadcasting wireless terminal device is broadcasted to user terminal.

In a kind of implementation of the present embodiment, Mobile Multimedia Broadcasting wireless terminal device can also be user terminal allocation manager authority, and see Fig. 5, said method also comprises:

206: Mobile Multimedia Broadcasting wireless terminal device determines the first user terminal of first transmission access request in this multicast group, and is first user terminal distribution administration authority.

Wherein, administration authority is used for carrying out control operation to multimedia programming; Control operation comprises channel switch, multimedia programming is ordered or multimedia programming is quit the subscription of.

Such as, Mobile Multimedia Broadcasting wireless terminal device determines that the user terminal 1 in this multicast group is first user terminal, and is user terminal 1 allocation manager authority.

It should be noted that, Mobile Multimedia Broadcasting wireless terminal device is first user terminal distribution administration authority, so that when receiving the control operation request that first user terminal sends, Mobile Multimedia Broadcasting wireless terminal device performs the control operation corresponding with described control operation request.

207: first user terminal sends to Mobile Multimedia Broadcasting wireless terminal device and controls password.

208: Mobile Multimedia Broadcasting wireless terminal device receives the control password of first user terminal setting and stores.

209: Mobile Multimedia Broadcasting wireless terminal device receives the control operation request that in this multicast group, arbitrary user terminal sends.

Wherein, in this multicast group, arbitrary user terminal can be user terminal 1, user terminal 2 or user terminal 3.

Such as, Mobile Multimedia Broadcasting wireless terminal device receives the control operation request that in this multicast group, user terminal 2 sends.

210: Mobile Multimedia Broadcasting wireless terminal device sends to the user terminal sending control operation request the information being used for reminding subscriber terminal input control password.

Such as, Mobile Multimedia Broadcasting wireless terminal device sends the information being used for reminding subscriber terminal input control password to user terminal 2.

211: after Mobile Multimedia Broadcasting wireless terminal device receives the control password of described user terminal transmission, judge that whether the control password received is identical with the control password that the user terminal with administration authority pre-sets.

212: when the control password received is identical with the control password that the user terminal with administration authority pre-sets, Mobile Multimedia Broadcasting wireless terminal device performs the control operation corresponding with control operation request.

Wherein, control operation comprises channel switch, multimedia programming orders or multimedia programming is quit the subscription of.

213: when the control password received is not identical with the control password that the user terminal with administration authority pre-sets, Mobile Multimedia Broadcasting wireless terminal device sends the response of code error to sending the user terminal controlling password.

Wherein, the response of code error is used to indicate the control code error sending the user terminal transmission controlling password, refusal executive control operation.

Such as, when the control password received is not identical with the control password that the user terminal with administration authority pre-sets, Mobile Multimedia Broadcasting wireless terminal device sends the response of code error to user terminal 2.

In a kind of implementation of the present embodiment, Mobile Multimedia Broadcasting wireless terminal device can also cancel the administration authority of the user terminal with administration authority, and see Fig. 6, said method also comprises:

214: the user terminal with administration authority sends to Mobile Multimedia Broadcasting wireless terminal device cancels administration authority request.

Such as, the user terminal 1 with administration authority sends to Mobile Multimedia Broadcasting wireless terminal device cancels administration authority request.

215: when receiving above-mentioned cancellation administration authority request, Mobile Multimedia Broadcasting wireless terminal device cancels the administration authority with the user terminal of administration authority, and administration authority is distributed to other the arbitrary user terminals in this multicast group.

Such as, when receiving above-mentioned cancellation administration authority request, Mobile Multimedia Broadcasting wireless terminal device cancels the administration authority of user terminal 1, and the user terminal 2 administration authority distributed in this multicast group or user terminal 3.

In a kind of implementation of the present embodiment, administration authority can also be transferred to other user terminals from the current user terminal with administration authority by Mobile Multimedia Broadcasting wireless terminal device, and see Fig. 7, said method also comprises:

216: the user terminal with administration authority sends the transfer administration authority request carrying designated user terminal iidentification to Mobile Multimedia Broadcasting wireless terminal device.

Such as, the user terminal 1 with administration authority sends the transfer administration authority request carrying user terminal 2 and identify to Mobile Multimedia Broadcasting wireless terminal device.

217: when receive above-mentioned carry the transfer administration authority request of designated user terminal iidentification time, Mobile Multimedia Broadcasting wireless terminal device is cancelled and is had the administration authority of the user terminal of administration authority, and administration authority is distributed to designated user terminal.

Such as, when receive above-mentioned carry the transfer administration authority request that user terminal 2 identifies time, Mobile Multimedia Broadcasting wireless terminal device is cancelled and is had the administration authority of the user terminal 1 of administration authority, and administration authority is distributed to user terminal 2.

The method of the multimedia data communication that the present embodiment provides, when the destination multimedia data channel that multiple user terminal is watched to the request of Mobile Multimedia Broadcasting wireless terminal device is identical, this method on the one hand, make Mobile Multimedia Broadcasting wireless terminal device can be each user terminal distributing IP multicast address, and the ip multicast address of the user terminal of the destination multimedia data channel of request viewing is divided into same multicast group, and make Mobile Multimedia Broadcasting wireless terminal device after the destination multimedia data receiving mobile multimedia broadcast system transmission, each user terminal destination multimedia packet is separately broadcasted to each user terminal in this multicast group, thus multiple user terminal can be realized receive destination multimedia data simultaneously.Can only provide compared with multimedia data service for a user terminal at one time with Mobile Multimedia Broadcasting wireless terminal device in prior art, the present embodiment can realize by a Mobile Multimedia Broadcasting wireless terminal device, quickly and easily simultaneously for multiple user terminal provides multimedia data service, Internet resources can be effectively saved.

On the other hand, Mobile Multimedia Broadcasting wireless terminal device can also arrange user terminal management authority, cancel the administration authority of user terminal and the administration authority of transferring user terminal, thus make the user terminal with administration authority can carry out control operation to Mobile Multimedia Broadcasting wireless terminal device, and then avoid the problem producing control authority conflict when multiple user terminal watches multimedia programming simultaneously.

Embodiment 3

See Fig. 8, for the method flow diagram of a kind of multimedia data communication that the present embodiment provides, the present embodiment is with four user terminals to Mobile Multimedia Broadcasting wireless terminal device request viewing destination multimedia data, and the channels of multimedia data of request viewing is not all example is mutually specifically described the present invention.

301: Mobile Multimedia Broadcasting wireless terminal device receives the access request that four user terminals send, each access request comprises the channel identication of destination multimedia data and the mark of user terminal of request viewing.

Wherein, the channel identication of the destination multimedia data of above-mentioned request viewing can be the channel number of destination multimedia data, such as, user terminal 1, user terminal 2 and user terminal 3 ask the channel number of multi-medium data watched to be CCTV1, user terminal 4 ask the channel number of the multi-medium data of viewing to be CCTV2; The mark of user terminal can be the MAC mark of user terminal, for unique identifying subscriber terminal.

Such as, Mobile Multimedia Broadcasting wireless terminal device receives the first access request that user terminal 1 sends, the second access request, the 3rd access request of user terminal 3 transmission and the 4th access request of user terminal 4 transmission that user terminal 2 sends; Wherein, first access request comprises the MAC mark of CCTV1 and user terminal 1, second access request comprises the MAC mark of CCTV1 and user terminal 2, and the 3rd access request comprises the MAC mark of CCTV1 and user terminal 3, and the 4th access request comprises the MAC mark of CCTV2 and user terminal 4.

302: Mobile Multimedia Broadcasting wireless terminal device is respectively four user terminal distributing IP multicast address, the ip multicast address of user terminal identical for the channel identication of above-mentioned request viewing destination multimedia data is divided into same multicast group.

Wherein, the user terminal number that each channel of Mobile Multimedia Broadcasting wireless terminal device can be accessed by most has certain higher limit, in the present embodiment example, the number of user terminal does not all exceed the user terminal number that Mobile Multimedia Broadcasting wireless terminal device can be accessed by most.

Such as, Mobile Multimedia Broadcasting wireless terminal device is the ip multicast address that user terminal 1 distributes is 239.200.105.244;

Mobile Multimedia Broadcasting wireless terminal device is the ip multicast address that user terminal 2 distributes is 239.200.105.245;

Mobile Multimedia Broadcasting wireless terminal device is the ip multicast address that user terminal 3 distributes is 239.200.105.246;

Mobile Multimedia Broadcasting wireless terminal device is the ip multicast address that user terminal 4 distributes is 239.200.105.247.

Such as, above-mentioned four user terminals are respectively user terminal 1, user terminal 2, user terminal 3 and user terminal 4; User terminal 1, user terminal 2 and user terminal 3 ask the channel identication of viewing destination multimedia data identical, are the first channel; User terminal 4 asks the destination multimedia data channel of viewing to be the second channel; Then the ip multicast address of user terminal 1, the ip multicast address of user terminal 2 and other ip multicast address of user terminal 3 points are divided into the first multicast group by Mobile Multimedia Broadcasting wireless terminal device, the ip multicast address of user terminal 4 are divided into many second and broadcast group.

It should be noted that, after this step, Mobile Multimedia Broadcasting wireless terminal device can also send access request response respectively to four user terminals, each access request response comprises the ip multicast address of the object user terminal being about to mail to and the mark of this user terminal, so that in follow-up operation, when user terminal to Mobile Multimedia Broadcasting wireless terminal device send request or data time, the ip multicast address of this user terminal and the mark of this user terminal is carried in described request or data, and then make Mobile Multimedia Broadcasting wireless terminal device can determine to send request or the user terminal of data.

303: Mobile Multimedia Broadcasting wireless terminal device sends the request for obtaining destination multimedia data to mobile multimedia broadcast system, and described request comprises the channel identication of destination multimedia data.

Such as, Mobile Multimedia Broadcasting wireless terminal device sends the request for obtaining destination multimedia data to mobile multimedia broadcast system, and described request comprises CCTV1 and CCTV2.

304: after mobile multimedia broadcast system receives the request obtaining destination multimedia data, the channel identication according to destination multimedia data sends the destination multimedia data corresponding with the channel identication of destination multimedia data to Mobile Multimedia Broadcasting wireless terminal device.

Such as, the channel identication of destination multimedia data is CCTV1 and CCTV2, and mobile multimedia broadcast system, according to CCTV1 and CCTV2, sends the multi-medium data of CCTV1 channel and CCTV2 channel respectively to Mobile Multimedia Broadcasting wireless terminal device.

305: after Mobile Multimedia Broadcasting wireless terminal device receives destination multimedia data, broadcast each user terminal destination multimedia packet separately respectively to each user terminal in same multicast group.

Wherein, channels of multimedia data is divided into encoded channel and non-encrypted channel.

In the present embodiment, when above-mentioned first channel and above-mentioned second channel are non-encrypted channel, Mobile Multimedia Broadcasting wireless terminal device is specially respectively to two user terminal described two user terminals of the broadcast destination multimedia packet separately in same multicast group:

Such as, Mobile Multimedia Broadcasting wireless terminal device carries ip multicast address 239.200.105.244 respectively to user terminal 1 broadcast, first packet of the MAC Address of CCTV1 channel multi-medium data and user terminal 1, ip multicast address 239.200.105.245 is carried to user terminal 2 broadcast, second packet of the MAC Address of CCTV1 channel multi-medium data and user terminal 2, ip multicast address 239.200.105.246 is carried to user terminal 3 broadcast, 3rd packet of the MAC Address of CCTV1 channel multi-medium data and user terminal 3, ip multicast address 239.200.105.247 is carried to user terminal 4 broadcast, 4th packet of the MAC Address of CCTV2 channel multi-medium data and user terminal 4.

In the present embodiment, when above-mentioned first channel is non-encrypted channel, when above-mentioned second channel is encoded channel, Mobile Multimedia Broadcasting wireless terminal device is specially respectively to two user terminal described two user terminals of the broadcast destination multimedia packet separately in same multicast group:

1) Mobile Multimedia Broadcasting wireless terminal device broadcasts respective destination multimedia packet respectively to the user terminal 1 in the first multicast group, user terminal 2 and user terminal 3, wherein, the destination multimedia packet of each user terminal carries the mark of the ip multicast address of user terminal, destination multimedia data and user terminal;

2) Mobile Multimedia Broadcasting wireless terminal device is by the destination multimedia decrypt data corresponding with the second channel identication, obtain the destination multimedia data after deciphering, and to the destination multimedia packet of the user terminal 4 broadcasting user terminal 4 in the second multicast group; Wherein, the destination multimedia packet of user terminal 4 carries the destination multimedia data after the ip multicast address of user terminal 4, deciphering and the mark of user terminal 4.

Such as, Mobile Multimedia Broadcasting wireless terminal device carries the MAC Address of the CCTV2 channel multi-medium data after ip multicast address 239.200.105.247, deciphering and user terminal 4 to the destination multimedia packet that user terminal 4 is broadcasted.

In a kind of implementation of the present embodiment, see Fig. 9 when above-mentioned first channel and above-mentioned second channel are non-encrypted channel, and the arbitrary user terminal belonged in the first multicast group is when wanting the multimedia programming of viewing second channel, Mobile Multimedia Broadcasting wireless terminal device can also carry out channel switch for user terminal, and said method also comprises:

306: Mobile Multimedia Broadcasting wireless terminal device receives the channel switch request that in the first multicast group, arbitrary user terminal sends, and wraps the ip multicast address of the mark of the second channel, the mark of user terminal and user terminal in channel switch request.

Such as, Mobile Multimedia Broadcasting wireless terminal device receives the channel switch request that user terminal 1 in the first multicast group sends, and channel switch request comprises CCTV2, the MAC Address of user terminal 1 and ip multicast address 239.200.105.244.

307: Mobile Multimedia Broadcasting wireless terminal device determines the second multicast group that the channel identication of the destination multimedia data for being switched to is corresponding.

308: Mobile Multimedia Broadcasting wireless terminal device judges whether reached in the user terminal number of viewing second channel maximum user terminal numbers that the second channel supports in the second multicast group.

309: when not reaching maximum user terminal number that the second channel is supported, the ip multicast address of the user terminal sending channel switch request is divided in the second multicast group by Mobile Multimedia Broadcasting wireless terminal device.

Such as, when not reaching maximum user terminal number that the second channel is supported, the ip multicast address of user terminal 1 is divided in the second multicast group by Mobile Multimedia Broadcasting wireless terminal device.

310: when reaching maximum user terminal number that the second channel is supported, Mobile Multimedia Broadcasting wireless terminal device sends the response of handoff failure to the user terminal sending channel switch request.

Such as, when reaching maximum user terminal number that the second channel is supported, Mobile Multimedia Broadcasting wireless terminal device sends the response of handoff failure to user terminal 1.

Wherein, handoff failure response is used to indicate channel switch request failure.

In a kind of implementation of the present embodiment, see Figure 10, when above-mentioned first channel is non-encrypted channel, when above-mentioned second channel is encoded channel, when the arbitrary user terminal belonged in the first multicast group wants the multimedia programming of viewing second channel, Mobile Multimedia Broadcasting wireless terminal device can also carry out channel switch for user terminal, and said method also comprises:

311: Mobile Multimedia Broadcasting wireless terminal device receives the channel switch request that in the first multicast group, arbitrary user terminal sends, and wraps the ip multicast address of the mark of the second channel, the mark of user terminal and user terminal in channel switch request.

312: Mobile Multimedia Broadcasting wireless terminal device determines the second multicast group that the channel identication of the destination multimedia data for being switched to is corresponding.

313: Mobile Multimedia Broadcasting wireless terminal device judges whether there is the user terminal watching the second channel in the second multicast group.

Wherein, the accessible at most user terminal of each encoded channel of Mobile Multimedia Broadcasting wireless terminal device.

314: when being the user terminal not watching the second channel in the second multicast group, the ip multicast address of the user terminal sending channel switch request is divided in the second multicast group by Mobile Multimedia Broadcasting wireless terminal device.

Such as, when being the user terminal not watching the second channel in the second multicast group, the ip multicast address of user terminal 1 is divided in the second multicast group by Mobile Multimedia Broadcasting wireless terminal device.

315: when being when having the user terminal watching the second channel in the second multicast group, Mobile Multimedia Broadcasting wireless terminal device sends the response of handoff failure to the user terminal sending channel switch request.

Such as, when being that when having the user terminal watching the second channel, Mobile Multimedia Broadcasting wireless terminal device sends the response of handoff failure to user terminal 1 in the second multicast group.

The method of the multimedia data communication that the present embodiment provides, when each user terminal ask the destination multimedia data channel watched different time, this method on the one hand, make Mobile Multimedia Broadcasting wireless terminal device can be each user terminal distributing IP multicast address, and the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group, and make Mobile Multimedia Broadcasting wireless terminal device after the destination multimedia data receiving mobile multimedia broadcast system transmission, each user terminal destination multimedia packet is separately broadcasted to each user terminal in same multicast group, thus multiple user terminal can be realized receive destination multimedia data simultaneously.Can only provide compared with multimedia data service for a user terminal at one time with Mobile Multimedia Broadcasting wireless terminal device in prior art, the present embodiment can realize by a Mobile Multimedia Broadcasting wireless terminal device, quickly and easily simultaneously for multiple user terminal provides multimedia data service, Internet resources can be effectively saved.

On the other hand, Mobile Multimedia Broadcasting wireless terminal device can also provide for user terminal the service switching the channels of multimedia data watched.

Embodiment 4

See Figure 11, be the structure chart of a kind of Mobile Multimedia Broadcasting wireless terminal device that the present embodiment provides, comprise:

Wireless communication module 401, for receiving the access request that each user terminal sends, each access request comprises the channel identication of destination multimedia data and the mark of user terminal of request viewing, and each access request is sent to the control port 01 of multimedia player 402;

Multimedia player 402, for receiving each access request from control port 01, and be respectively each user terminal distributing IP multicast address, the ip multicast address end of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group;

Multimedia player 402, also for sending request for obtaining destination multimedia data by control port 01 to wireless communication module 401, request comprises the channel identication of destination multimedia data;

Wireless communication module 401, also for receiving the request for obtaining destination multimedia data from control port 01, and sends the request for obtaining destination multimedia data to mobile multimedia broadcast system;

Destination multimedia data also for receiving the destination multimedia data that mobile multimedia broadcast system sends, and are sent to the FPDP 02 of multimedia player 402 by wireless communication module 401;

Multimedia player 402, also for from FPDP 02 receiving target multi-medium data, and the destination multimedia packet for mailing to each user terminal in same multicast group is sent to wireless communication module 401 by FPDP 02, the destination multimedia packet of each user terminal carries the mark of the ip multicast address of user terminal, destination multimedia data and user terminal;

Wireless communication module 401, also for receiving the destination multimedia packet for mailing to each user terminal in same multicast group from FPDP 02, and broadcast each user terminal destination multimedia packet separately to each user terminal in same multicast group.

It should be noted that, Mobile Multimedia Broadcasting wireless terminal device itself can be exactly the Wireless Telecom Equipment of such as mobile terminal and so on, the carrier holding wireless communication module 401, multimedia player 402 can also be comprised, to allow to carry out data transmitting, process and reception between Mobile Multimedia Broadcasting wireless terminal device and terminal equipment.

The Mobile Multimedia Broadcasting wireless terminal device that the present embodiment provides, make when multiple user terminal is wanted simultaneously by Mobile Multimedia Broadcasting wireless terminal device viewing channels of multimedia data, Mobile Multimedia Broadcasting wireless terminal device can be each user terminal distributing IP multicast address, and the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group, and make Mobile Multimedia Broadcasting wireless terminal device after the destination multimedia data receiving mobile multimedia broadcast system transmission, each user terminal destination multimedia packet is separately broadcasted to each user terminal in same multicast group, thus multiple user terminal can be realized receive destination multimedia data simultaneously.Can only provide compared with the Mobile Multimedia Broadcasting wireless terminal device of multimedia data service for a user terminal at one time with prior art, the Mobile Multimedia Broadcasting wireless terminal device that the present embodiment provides can realize simultaneously for multiple user terminal provides the service of multi-medium data.

Further, see Figure 12, above-mentioned Mobile Multimedia Broadcasting wireless terminal device also comprises: Mobile Multimedia Broadcasting chip 403;

Multimedia player 402, also for destination multimedia data are sent to Mobile Multimedia Broadcasting chip by FPDP 02;

Mobile Multimedia Broadcasting chip 403, for when multimedia player 402 is enciphered data from the destination multimedia data that FPDP 02 receives, by FPDP 02 receiving target multi-medium data, by destination multimedia decrypt data, and the destination multimedia data after deciphering are sent to FPDP 02;

Multimedia player 402, also for being received the destination multimedia data after deciphering that Mobile Multimedia Broadcasting chip 403 sends by FPDP 02, and by the destination multimedia Packet Generation for mailing to the user terminal in same multicast group to FPDP 02.

Further, multimedia player 402, also for after each access request being received control port 01 transmission by control port 01, determine the first user terminal of first transmission access request in same multicast group, and be first user terminal distribution administration authority, administration authority is used for carrying out control operation to multimedia programming;

Further, wireless communication module 401, also for receiving the control operation request that in same multicast group, arbitrary user terminal sends, and is sent to control port 01 by control operation request;

Multimedia player 402, also for after receiving control operation request, sends the information being used for reminding subscriber terminal input control password to wireless communication module 401 by control port 01;

Wireless communication module 401, also for being received the information being used for reminding subscriber terminal input control password by control port 01, and sends the information being used for reminding subscriber terminal input control password to user terminal;

Wireless communication module 401, also for receiving the control password that user terminal sends, and is sent to control port 01 by the control password that user terminal sends;

Multimedia player 402, also for receiving the control password that wireless communication module 401 sends from control port 01, and when the control password received is identical with the control password that the user terminal with administration authority pre-sets, perform the control operation corresponding with control operation request;

Multimedia player 402, also for receiving the control password that wireless communication module 401 sends from control port 01, and when the control password received is not identical with the control password that the user terminal with administration authority pre-sets, sent the response controlling code error to wireless communication module 401 by control port 01;

Wireless communication module 401, also for being received the response controlling code error by control port 01, and sends to the user terminal sending and control password by the response controlling code error.

Further, wireless communication module 401, also for receiving the cancellation administration authority request of the user terminal transmission with administration authority, and is sent to control port 01 by the request of cancellation administration authority; Multimedia player 402, also being cancelled administration authority request for being received by control port 01, cancelling the administration authority with the user terminal of administration authority, and administration authority being distributed to other the arbitrary user terminals in same multicast group; Or,

Wireless communication module 401, also for receiving the transfer administration authority request carrying designated user terminal iidentification of the user terminal transmission with administration authority, and is sent to control port 01 by the transfer administration authority request carrying designated user terminal iidentification; Multimedia player 402, also for being received the transfer administration authority request carrying designated user terminal iidentification by control port 01, cancel the administration authority with the user terminal of administration authority, administration authority is distributed to designated user terminal, user terminal and the designated user terminal with administration authority belong to same multicast group.

Further, wireless communication module 401, also for receiving the channel switch request that in the first multicast group, arbitrary user terminal sends, channel switch request comprises the ip multicast address of the channel identication of destination multimedia data, the mark of user terminal and user terminal for being switched to, and channel switch request is sent to control port 01:

Multimedia player 402, also for passing through control port 01 receiving channels handover request, determine according to the channel identication of the destination multimedia data for being switched to the second multicast group that the channel identication of the destination multimedia data for being switched to is corresponding, and the ip multicast address of user terminal is divided in the second multicast group.

Wherein, above-mentioned wireless communication module supports G mobile communication 3G network or Wireless Fidelity WIFI network.

It should be noted that, Mobile Multimedia Broadcasting wireless terminal device itself can be exactly the Wireless Telecom Equipment of such as mobile terminal and so on, the carrier holding wireless communication module 401, multimedia player 402 and Mobile Multimedia Broadcasting chip 403 can also be comprised, to allow to carry out data transmitting, process and reception between Mobile Multimedia Broadcasting wireless terminal device and terminal equipment.

Mobile Multimedia Broadcasting wireless terminal device described in the present embodiment can be television rod USB DONGLE, the wireless terminal device such as mobile phone, panel computer of set above-mentioned functions module.

The Mobile Multimedia Broadcasting wireless terminal device that the present embodiment provides, when the destination multimedia data channel that each user terminal is watched to the request of Mobile Multimedia Broadcasting wireless terminal device is identical, Mobile Multimedia Broadcasting wireless terminal device can also arrange user terminal management authority, cancel the administration authority of user terminal and the administration authority of transferring user terminal, thus make the user terminal with administration authority can carry out control operation to Mobile Multimedia Broadcasting wireless terminal device, and then avoid the problem producing control authority conflict when multiple user terminal watches multimedia programming simultaneously, when each user terminal ask the destination multimedia data channel watched different time, Mobile Multimedia Broadcasting wireless terminal device can also provide the service of the channels of multimedia data switching viewing for user terminal.

See Figure 13, be the system construction drawing of a kind of multimedia data communication that the present embodiment provides, comprise above-mentioned Mobile Multimedia Broadcasting wireless terminal device 400 and mobile multimedia broadcast system 600.

The system of the multimedia data communication that the present embodiment provides, on the one hand, make when multiple user terminal is wanted simultaneously by Mobile Multimedia Broadcasting wireless terminal device viewing channels of multimedia data, Mobile Multimedia Broadcasting wireless terminal device can be each user terminal distributing IP multicast address, and the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group, and the request obtaining destination multimedia data is sent to mobile multimedia broadcast system, make mobile multimedia broadcast system after receiving the request obtaining destination multimedia data, after sending destination multimedia data to Mobile Multimedia Broadcasting wireless terminal device, thus make Mobile Multimedia Broadcasting wireless terminal device can broadcast each user terminal destination multimedia packet separately to each user terminal in same multicast group, thus multiple user terminal can be realized receive destination multimedia data simultaneously.Can only provide compared with multimedia data service for a user terminal at one time with Mobile Multimedia Broadcasting wireless terminal device in prior art, the present embodiment can realize by a Mobile Multimedia Broadcasting wireless terminal device simultaneously for multiple user terminal provides multimedia data service.

Embodiment 5

See Figure 14, be the hardware chart of a kind of Mobile Multimedia Broadcasting wireless terminal device provided by the invention, comprise radiating circuit 501, receiving circuit 502, processor 503, memory 504, antenna 505 and drive circuit 506.

Wherein, receiving circuit 502, for receiving the access request that each user terminal sends, described each access request comprises the channel identication of destination multimedia data and the mark of described user terminal of request viewing;

Processor 503, for being respectively each user terminal distributing IP multicast address described, is divided into same multicast group by the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing;

Memory 504, for storing the ip multicast address in each multicast group and in each ip multicast group;

Radiating circuit 501, for sending the request for obtaining destination multimedia data to mobile multimedia broadcast system, described request comprises the channel identication of destination multimedia data;

Receiving circuit 502, also for receiving the destination multimedia data that described mobile multimedia broadcast system sends;

Radiating circuit 501, also for broadcasting described each user terminal destination multimedia packet separately to each user terminal in same multicast group, the destination multimedia packet of described each user terminal carries the ip multicast address of described user terminal, the destination multimedia data of request and the mark of described user terminal.

Wherein, radiating circuit 501 and receiving circuit 502 can be coupled to antenna 505; In addition, radiating circuit 501 and receiving circuit 502 also can independently exist, and now, do not possess antenna 505 in Mobile Multimedia Broadcasting wireless terminal device.

It should be noted that, Mobile Multimedia Broadcasting wireless terminal device itself can be exactly the Wireless Telecom Equipment of such as mobile terminal and so on, the carrier holding radiating circuit 501, receiving circuit 502, processor 503, memory 504, antenna 505 and drive circuit 506 can also be comprised, to allow to carry out data transmitting, process and reception between Mobile Multimedia Broadcasting wireless terminal device and terminal equipment.

Above-mentioned processor 503 may be a kind of integrated circuit (IC) chip, has the disposal ability of signal.In implementation procedure, each step of said method can be completed by the instruction of the integrated logic circuit of the hardware in processor 503 or software form.These instructions can be realized to coordinate and control by processor 503 wherein, for performing the method that the embodiment of the present invention discloses.Above-mentioned processor 503 can also be general processor, digital signal processor (Digital Signal Processing), application-specific integrated circuit (ASIC) (application specific integrated circuit), ready-made programmable gate array (Field Programmable Gate Array) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components.

Wherein, the processor of above-mentioned general processor can be microprocessor or this processor also can be any routine, decoder etc.Step in conjunction with the method disclosed in the embodiment of the present invention directly can be presented as that hardware processor 503 is complete, or hardware in purpose processor 503 and software module combination complete.Software module can be positioned at random asccess memory, flash memory, read-only memory, in the storage medium of this area maturations such as programmable read only memory or electrically erasable programmable memory, register.This storage medium is arranged in memory 504, and processor 503 reads the information in memory 504, completes the step of said method in conjunction with its hardware.

In addition, each nextport hardware component NextPort of Mobile Multimedia Broadcasting wireless terminal device is coupled by bus system 5100, and wherein bus system 5100 is except comprising data/address bus, also comprises power bus, control bus and status signal bus in addition.But in order to clearly demonstrate, in the drawings various bus is all designated as bus system 5100.

See Figure 15, further, Mobile Multimedia Broadcasting wireless terminal device, also comprises: decryption processor 507;

Decryption processor 507, for when the destination multimedia data that the mobile multimedia broadcast system that receiving circuit 502 receives sends are enciphered data, by the described destination multimedia decrypt data received.

Further, processor 503 also for determining the first user terminal of first described access request of transmission in same multicast group, and is described first user terminal distribution administration authority, and described administration authority is used for carrying out control operation to multimedia programming;

Further, receiving circuit 502, also for receiving the control operation request that in described same multicast group, arbitrary user terminal sends;

Radiating circuit 501, also for sending to described arbitrary user terminal the information being used for reminding subscriber terminal input control password;

Receiving circuit 502, also for receiving the control password that described arbitrary user terminal sends;

Processor 503 is also identical with the control password that the user terminal with administration authority pre-sets for comparing the control password received; When the control password received is identical with the control password that the user terminal with administration authority pre-sets, perform the control operation corresponding with described control operation request; When the control password that the described control password received and the described user terminal with administration authority pre-set is not identical, by radiating circuit 501 to the response sending the user terminal transmission code error controlling password.

Further, receiving circuit 502, also for receiving the cancellation administration authority request of the user terminal transmission with described administration authority; Processor 503, also for cancelling the administration authority of the user terminal with described administration authority, and distributes to other the arbitrary user terminals in described same multicast group by described administration authority; Or,

Receiving circuit 502, also for receiving the transfer administration authority request carrying designated user terminal iidentification of the user terminal transmission with described administration authority; Processor 503, also for cancelling the administration authority of the user terminal with described administration authority, distributes to described designated user terminal by described administration authority, described in there is the user terminal of described administration authority and described designated user terminal belongs to same multicast group.

Further, receiving circuit 502, also for receiving the channel switch request that in the first multicast group, arbitrary user terminal sends, described channel switch request comprises the ip multicast address of the channel identication of the destination multimedia data for being switched to, the mark of described user terminal and described user terminal;

Processor 503, for receiving described channel switch request by described control port, determine according to the channel identication of the destination multimedia data for being switched to the second multicast group that the channel identication of the described destination multimedia data for being switched to is corresponding, and the ip multicast address of described user terminal is divided in described second multicast group.

Wherein, drive circuit 506, for providing driving to make each hardware normally to work for each hardware in Mobile Multimedia Broadcasting wireless terminal device.

The present embodiment is in specific implementation, memory 504 comprises and at least comprises one or more memory device following, a read-only memory, a random access memory or a non-volatile row random access memory, memory 504 provides instruction and data for processor 503.

Decryption processor 507 may be a kind of integrated circuit (IC) chip, has the disposal ability of signal.In implementation procedure, each step of said method can be completed by the instruction of the integrated logic circuit of the hardware in decryption processor 507 or software form.These instructions can be realized to coordinate and control by processor 503 wherein, for performing the method that the embodiment of the present invention discloses.Above-mentioned decryption processor 507 can also be general processor, digital signal processor, application-specific integrated circuit (ASIC), ready-made programmable gate array or other programmable logic devices, discrete gate or transistor logic, discrete hardware components.

Wherein, the processor of above-mentioned general processor can be microprocessor or this processor also can be any routine, decoder etc.Step in conjunction with the method disclosed in the embodiment of the present invention directly can be presented as that hardware decryption processor 507 is complete, or combines complete by the hardware in decryption processor 507 and software module.Software module can be positioned at random asccess memory, flash memory, read-only memory, in the storage medium of this area maturations such as programmable read only memory or electrically erasable programmable memory, register.This storage medium is arranged in memory 504, and decryption processor 507 reads the information in memory 504, completes the step of said method in conjunction with its hardware.

It should be noted that, Mobile Multimedia Broadcasting wireless terminal device itself can be exactly the Wireless Telecom Equipment of such as mobile terminal and so on, the carrier holding radiating circuit 501, receiving circuit 502, processor 503, memory 504, antenna 505, drive circuit 506 and decryption processor 507 can also be comprised, to allow to carry out data transmitting, process and reception between Mobile Multimedia Broadcasting wireless terminal device and terminal equipment.

Mobile Multimedia Broadcasting wireless terminal device described in the present embodiment can be television rod USB DONGLE, gathers the wireless terminal devices such as the mobile phone of above-mentioned hardware module, panel computer.

Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims

1. a method for multimedia data communication, is characterized in that, comprising:

Mobile Multimedia Broadcasting wireless terminal device receives the access request that each user terminal sends, and described access request comprises the channel identication of destination multimedia data and the mark of described user terminal of request viewing;

Described Mobile Multimedia Broadcasting wireless terminal device is respectively each user terminal distributing IP multicast address described, and the ip multicast address of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group;

Described Mobile Multimedia Broadcasting wireless terminal device sends the request for obtaining destination multimedia data to mobile multimedia broadcast system, and described request comprises the channel identication of destination multimedia data;

Described Mobile Multimedia Broadcasting wireless terminal device receives the destination multimedia data that described mobile multimedia broadcast system sends;

Described Mobile Multimedia Broadcasting wireless terminal device is to described each user terminal destination multimedia packet separately of each user terminal broadcast in same multicast group, and the destination multimedia packet of described user terminal carries the ip multicast address of described user terminal, the destination multimedia data of request and the mark of described user terminal.

2. method according to claim 1, is characterized in that, described before each user terminal destination multimedia packet separately described in each user terminal broadcast in same multicast group, also comprises:

3. method according to claim 1 and 2, is characterized in that, also comprises:

4. method according to claim 3, is characterized in that, in the described first user terminal determining first described access request of transmission in same multicast group, and after being described first user terminal distribution administration authority, also comprises:

Receive the control password that described arbitrary user terminal sends;

5. method according to claim 3, is characterized in that, in the described first user terminal determining first described access request of transmission in same multicast group, and after being described first user terminal distribution administration authority, also comprises:

6. method according to claim 1 and 2, is characterized in that, also comprises:

7. a Mobile Multimedia Broadcasting wireless terminal device, is characterized in that, comprising:

Wireless communication module, for receiving the access request that each user terminal sends, described access request comprises the channel identication of destination multimedia data and the mark of described user terminal of request viewing, and described access request is sent to the control port of multimedia player;

Described multimedia player, for receiving described access request from described control port, and be respectively each user terminal distributing IP multicast address described, the ip multicast address end of user terminal identical for the channel identication of the destination multimedia data of request viewing is divided into same multicast group;

Described multimedia player, also for receiving described destination multimedia data from described FPDP, and the destination multimedia packet for mailing to each user terminal in same multicast group is sent to described radio receiving terminal by described FPDP, the destination multimedia packet of described user terminal carries the ip multicast address of described user terminal, the destination multimedia data of request and the mark of described user terminal;

8. equipment according to claim 7, is characterized in that, described equipment also comprises: Mobile Multimedia Broadcasting chip;

Described multimedia player, also for described destination multimedia data are sent to Mobile Multimedia Broadcasting chip by described FPDP;

9. the equipment according to claim 7 or 8, is characterized in that,

Described multimedia player, also for after the described access request being received the transmission of described control port by described control port, determine the first user terminal of first described access request of transmission in same multicast group, and be described first user terminal distribution administration authority, described administration authority is used for carrying out control operation to multimedia programming;

10. equipment according to claim 9, is characterized in that,

Described wireless communication module, also for receiving the control operation request that in described same multicast group, arbitrary user terminal sends, and is sent to described control port by described control operation request;

11. equipment according to claim 9, is characterized in that,

Described wireless communication module, also for receiving the cancellation administration authority request of the user terminal transmission with described administration authority, and is sent to described control port by the request of described cancellation administration authority; Described multimedia player, also for receiving the request of described cancellation administration authority by described control port, cancel the administration authority with the user terminal of described administration authority, and described administration authority is distributed to other the arbitrary user terminals in described same multicast group; Or,

12. equipment according to claim 7 or 8, is characterized in that,

Described wireless communication module, also for receiving the channel switch request that in the first multicast group, arbitrary user terminal sends, described channel switch request comprises the ip multicast address of the channel identication of the destination multimedia data for being switched to, the mark of described user terminal and described user terminal, and described channel switch request is sent to described control port;

The system of 13. 1 kinds of multimedia data communications, is characterized in that, comprises the Mobile Multimedia Broadcasting wireless terminal device according to any one of claim 7-12 and mobile multimedia broadcast system.