CN1960270A - Mobile multimedia broadcast system and method for raising transmission efficiency by using frames with variable lengths - Google Patents
Mobile multimedia broadcast system and method for raising transmission efficiency by using frames with variable lengths Download PDFInfo
- Publication number
- CN1960270A CN1960270A CNA2006101410051A CN200610141005A CN1960270A CN 1960270 A CN1960270 A CN 1960270A CN A2006101410051 A CNA2006101410051 A CN A2006101410051A CN 200610141005 A CN200610141005 A CN 200610141005A CN 1960270 A CN1960270 A CN 1960270A
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- China
- Prior art keywords
- assembly
- component
- audio
- packet header
- ancillary data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The method comprises: the system uses the variable-length data frame to send the multimedia data stream to the mobile terminal in its coverage area through the service network; the service network packs the video component, audio component and attached data component into the variable-length data frame to transmit. The mobile terminal receives the data frame and extracts the video, audio and attached components from it according to the components symbol; the variable-length data frame consists of the packet header comprising the components symbol, the video component, audio component and one or more payloads in the attached data component.
Description
Technical field
The present invention relates to the multimedia broadcasting technology, be specifically related to a kind of multi-media broadcasting system and method thereof of utilizing elongated Frame to improve transmission efficiency.
Background technology
Mobile Multimedia Broadcasting is a kind of Play Technique for Multimedia of rising in recent years.By hand-held terminal, under the situation of high-speed mobile, can watch TV.Terminal receives programme by wireless protocols, and can select the channel of oneself having the right to watch, thereby can accept to select the multi-medium data of channel, is implemented in and sees TV on the portable terminal.
Mobile multimedia broadcast system is divided into different channels, the media data flow of each channel can comprise video data component, voice data assembly, ancillary data assembly, need on the channel of mobile multimedia broadcast system, transmit by multiplex technique, terminal can receive relevant assembly, and plays on terminal.
The method for packing of existing media data flow has 2 kinds:
First, the transport stream TS mode, the TS agreement is a kind of in Motion Picture Experts Group's mpeg standard, it is transmitting in video data component, voice data assembly, the ancillary data assembly bag that to be placed on a regular length be 188 byte-sized, proofread and correct bag by tranmitting data register, realized functions such as clock synchronization.
The second, the realtime transmission protocol RTP mode is the method at IP network media data stream, and the size of bag is fixing, and the time stamp by each packet header guarantees the time synchronized play, guarantees the broadcast order that wraps by sequence number.
Existing method respectively has the strengths and weaknesses, and the RTP mode can only be used on IP network, and the TS mode adopts regular length to cause efficiency of transmission lower, often is lower than 90%.
On the other hand, it is very limited that service network can offer the wireless bandwidth of each portable terminal, and be to satisfy the clear demonstration of terminal to need enough transmission rates, must cause actual transfer rate to reduce but efficiency of transmission is low, might not reach the business need of Mobile Multimedia Broadcasting.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of mobile multimedia broadcast system and method thereof with frame structure raising communication efficiency, can improve the efficiency of transmission of multimedia data stream, satisfy the requirement of Mobile Multimedia Broadcasting.
Above-mentioned first technical problem of the present invention solves like this, and a kind of mobile multimedia broadcast system is provided, and the elongated Frame of this system service network using portable terminal in its coverage transmits multimedia data stream; Described elongated Frame comprises packet header and comprises one or more payload in video component, audio-frequency assembly and the ancillary data assembly; Described packet header comprises the assembly the sign whether described video component of indication, audio-frequency assembly and ancillary data assembly exist in this Frame.
According to system provided by the invention, described packet header also comprises component parameter, and is corresponding one by one with assembly sign and described video component, audio-frequency assembly and ancillary data assembly.
According to system provided by the invention, the component parameter of corresponding described video component comprises the type of coding and the speed of the length of video data component, video data component.
According to system provided by the invention, the component parameter of corresponding described audio-frequency assembly comprises the length of voice data assembly, the type of coding and the speed of voice data assembly.
According to system provided by the invention, the component parameter of corresponding described ancillary data assembly comprises the length of ancillary data assembly, the type and the speed of ancillary data assembly.
According to system provided by the invention, described packet header also comprises packet header length.
Another technical problem of the present invention solves like this, and a kind of Mobile Multimedia Broadcasting method is provided, and utilizes mobile multimedia broadcast system, adopts elongated Frame to finish the transmission of multimedia data stream; Described elongated Frame comprises packet header and comprises all or part of elongated payload of video component, audio-frequency assembly and ancillary data assembly; Described packet header comprises the assembly the sign whether described video component of indication, audio-frequency assembly and ancillary data assembly exist in this Frame; This method comprises following corresponding step:
7.1) service network transmits one or more the structure assembly units by described elongated Frame in the video component, audio-frequency assembly and the ancillary data assembly that need in a period of time to transmit within it;
7.2) portable terminal receives and disassemble described elongated Frame, take out described video component, audio-frequency assembly or ancillary data assembly one by one according to described assembly sign, handle then.
According to method provided by the invention, described need to transmit can be in video component, audio-frequency assembly and the ancillary data assembly a kind of, two kinds or all.
According to method provided by the invention, described packet header also comprises packet header length and component parameter, and described component parameter is corresponding one by one with assembly sign and described video component, audio-frequency assembly and ancillary data assembly.
According to method provided by the invention, described component parameter comprises length, type or type of coding and the speed of corresponding assembly.
According to method provided by the invention, this method comprises that also described portable terminal only selects to exist the alignment processing playing program of assembly according to described assembly sign.
The elongated frame of a kind of usefulness provided by the invention improves the mobile multimedia broadcast system and the method thereof of transmission efficiency, assembly by the encapsulation multimedia data stream transmits in a channel effectively, each assembly needs the transfer assembly parameter in packet header, component parameter uses when being used to provide to the mobile terminal playing assembly, transmission for fear of unnecessary assembly and component parameter, save the channel resource of multi-media broadcasting system, in packet header, have the assembly sign to indicate assembly in the media data flow.Come the composition of clear and definite indication media data flow by the assembly sign, only transmit necessary assembly and component parameter, avoid transmitting unnecessary assembly and component parameter, improve the transmission efficiency of multi-media broadcasting system, for example only transmit audio-frequency assembly and audio-frequency assembly parameter in the audio broadcast channel, have only the parameter of audio-frequency assembly in the packet header, do not have the parameter of video data component and the parameter of ancillary data assembly, reduce the expense of encapsulation, improve the efficient of encapsulation; Assembly indication simultaneously also can be instructed the receiving terminal playing program of multimedia broadcasting, in terminal, only use the playing program of channel media data flow assembly, needn't use the playing program of all component, terminal is more economized on electricity, prolong the service time of battery of mobile terminal.
Description of drawings
Further the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the multimedia data stream transmission frame-form schematic diagram that multi-media broadcasting system of the present invention and method thereof adopt.
Fig. 2 is the head-coating structure schematic diagram in the frame structure shown in Figure 1.
Fig. 3 is the schematic diagram of video data component in the frame structure shown in Figure 1 and packet header counterpart internal logic relation.
Fig. 4 is the schematic diagram of voice data assembly in the frame structure shown in Figure 1 and packet header counterpart internal logic relation.
Fig. 5 is the schematic diagram of ancillary data assembly in the frame structure shown in Figure 1 and packet header counterpart internal logic relation.
Embodiment
Key of the present invention is the assembly sign, and component parameter and assembly synthesize a complete wrapper, and the parameter of assembly sign and assembly is placed in the packet header, and assembly is as the payload of bag.Indicate whether contain corresponding component parameter and assembly in the bag by the assembly sign.
The present invention realizes the high efficiency that data transmit one or more component package of multimedia data stream together, comprises following aspect:
(1) multi-media broadcasting system has a plurality of channels, and each channel transmits the media data flow of this channel.
(2) media data flow of channel can comprise video data component, voice data assembly, ancillary data assembly, media data flow can be made up of wherein a kind of assembly or several assembly, for example media data flow includes only video data component and voice data assembly, does not have the ancillary data assembly; Perhaps media data flow has only voice data assembly and ancillary data assembly.
(3) media data flow uses encapsulation format flexibly, is made up of packet header, video data component, voice data assembly, ancillary data assembly etc.
(4) packet header is the parameter of describing the media data flow of channel, comprises the length information in packet header, the assembly flag information of media data flow, the parameter of assembly etc.
(5) the assembly sign of media data flow comprises video data component sign, voice data assembly sign and ancillary data assembly sign.The video data component sign is used to refer in the media data flow of this channel whether comprise video data component; Voice data assembly sign is used to refer in the media data flow of this channel whether comprise the voice data assembly; Ancillary data assembly sign is used to refer in the media data flow of this channel whether comprise the ancillary data assembly;
(6) component parameter in the packet header is determined according to the assembly sign, if indicating in the media data flow of this channel, the video data component sign comprises video data component, then the parameter of video component is contained in media data flow packet header, as parameters such as the type of coding of the length of video data component, video data component and speed; Comprise the voice data assembly if voice data assembly sign is indicated in the media data flow of this channel, then the parameter of audio-frequency assembly is contained in media data flow packet header, as parameters such as the type of coding of the length of voice data assembly, voice data assembly and speed; Comprise the ancillary data assembly if ancillary data assembly sign is indicated in the media data flow of this channel, then the parameter of ancillary data assembly is contained in media data flow packet header, as parameters such as the type of the length of ancillary data assembly, ancillary data assembly and speed;
The present invention is to video data component in the multimedia broadcasting Media Stream, the voice data assembly, the method for packing of ancillary data assembly, specifically as shown in Figure 1, Mobile Multimedia Broadcasting has a plurality of channels 3, each channel 3 transmits the media data flow of different programs, Media Stream after the encapsulation is by packet header 10, video data component 21, voice data assembly 22, ancillary data assembly 23 is formed, each assembly needs the transfer assembly parameter in packet header, component parameter uses when offering the player module of portable terminal, in order to reduce the transmission of unnecessary assembly and component parameter, save the channel resource of multi-media broadcasting system, in packet header, have the assembly sign to indicate assembly in the media data flow.
As shown in Figure 2, media data flow is made up of packet header 10 and payload 20, and its middle wrapping head 10 mainly is some control informations, must provide.Particular content has:
(1) the packet header length information 101: the length in indication packet header.
(2) the video data component sign 102.
(3) voice data assembly sign 103.
(4) ancillary data assembly sign 104.
(5) component parameter 105, can comprise video data component parameter 1051, comprising: the length of video data component, video coding algorithm kind, video frequency coding rate, video frame frequency, video level resolution, video vertical resolution etc.
(6) component parameter 105, can comprise voice data component parameter 1052, comprising: voice data length component, encryption algorithm kind, encoder bit rate, sample rate etc.
(7) component parameter 105, can comprise ancillary data component parameter 1053, comprising: the length of ancillary data assembly, the type of ancillary data assembly etc.
(8) other information.
(9) the packet header check code 106.
As shown in Figure 3, video data component sign 102 is used to refer to and comprises video data component 1051 in the media data flow, indicates the parameter that contains video data component in packet header simultaneously.
As shown in Figure 4, voice data assembly sign 103 is used to refer to and comprises voice data assembly 1052 in the media data flow, indicates the parameter that contains the voice data assembly in packet header simultaneously.
As shown in Figure 5, ancillary data assembly sign 104 is used to refer to and comprises ancillary data assembly 1053 in the media data flow, indicates the parameter that contains the ancillary data assembly in packet header simultaneously.
Claims (10)
1, a kind of mobile multimedia broadcast system is characterized in that, the elongated Frame of this system service network using portable terminal in its coverage transmits multimedia data stream; Described elongated Frame comprises packet header (10) and comprises one or more payload (20) in video component (21), audio-frequency assembly (22) and the ancillary data assembly (23); Described packet header (10) comprises the assembly sign (102,103 and 104) whether the described video component of indication, audio-frequency assembly and ancillary data assembly exist in this Frame.
According to the described system of claim 1, it is characterized in that 2, described packet header (10) also comprise component parameter (105), corresponding one by one with described video component (21), audio-frequency assembly (22) and ancillary data assembly (23).
According to the described system of claim 2, it is characterized in that 3, the component parameter (1051) of corresponding described video component (21) comprises the length of video data component, the type of coding and the speed of video data component.
According to the described system of claim 2, it is characterized in that 4, the component parameter (1052) of corresponding described audio-frequency assembly (22) comprises the length of voice data assembly, the type of coding and the speed of voice data assembly.
According to the described system of claim 1, it is characterized in that 5, the component parameter (1053) of corresponding described ancillary data assembly (23) comprises the length of ancillary data assembly, the type and the speed of ancillary data assembly.
According to the described system of claim 1, it is characterized in that 6, described packet header (10) also comprise packet header length.
7, a kind of Mobile Multimedia Broadcasting method is utilized mobile multimedia broadcast system, it is characterized in that, adopts elongated Frame to finish the transmission of multimedia data stream; Described elongated Frame comprises packet header (10) and comprises the part or all of elongated payload (20) of video component (21), audio-frequency assembly (22) and ancillary data assembly (23); Described packet header (10) comprises the assembly sign (102,103 and 104) whether indication described video component (21), audio-frequency assembly (22) and ancillary data assembly (23) exist in this Frame; This method comprises following corresponding step:
7.1) service network transmits the structure assembly unit of one or more the described elongated Frames in the video component, audio-frequency assembly and the ancillary data group that need in a period of time to transmit within it;
7.2) portable terminal receives and disassemble described elongated Frame, take out described video component, audio-frequency assembly or ancillary data assembly one by one according to described assembly sign, handle then.
According to the described method of claim 7, it is characterized in that 8, this method comprises that also described portable terminal only selects to exist the alignment processing playing program of assembly according to described assembly sign (102,103 and 104).
According to the described method of claim 7, it is characterized in that 9, described what need to transmit can be in video component, audio-frequency assembly and the ancillary data assembly one or more.
According to the described method of claim 7, it is characterized in that 10, described packet header (10) also comprise packet header length (101) and component parameter (105); Described component parameter is corresponding one by one with described video component, audio-frequency assembly and ancillary data assembly, comprises length, type or type of coding and the speed of corresponding assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101410051A CN100561931C (en) | 2006-09-28 | 2006-09-28 | Adopt elongated frame to improve the mobile multimedia broadcast system and the method thereof of transmission efficiency |
| PCT/CN2006/003781 WO2008043213A1 (en) | 2006-09-28 | 2006-12-30 | A mobile multimedia broadcast system for enhancing transmission efficiency by using variable-length frame and thereof method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101410051A CN100561931C (en) | 2006-09-28 | 2006-09-28 | Adopt elongated frame to improve the mobile multimedia broadcast system and the method thereof of transmission efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960270A true CN1960270A (en) | 2007-05-09 |
| CN100561931C CN100561931C (en) | 2009-11-18 |
Family
ID=38071773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101410051A Expired - Fee Related CN100561931C (en) | 2006-09-28 | 2006-09-28 | Adopt elongated frame to improve the mobile multimedia broadcast system and the method thereof of transmission efficiency |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100561931C (en) |
| WO (1) | WO2008043213A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696231A (en) * | 2010-01-05 | 2012-09-26 | 高通股份有限公司 | Application layer modification to enable transmission gaps |
| US9319737B2 (en) | 2010-01-05 | 2016-04-19 | Qualcomm Incorporated | Transport layer modification to enable transmission gaps |
| CN109347815A (en) * | 2011-10-13 | 2019-02-15 | 三星电子株式会社 | Device and method for transmitting multi-medium data in hybrid network |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3276611B2 (en) * | 1999-03-01 | 2002-04-22 | 松下電器産業株式会社 | Variable length frame transmitting apparatus and variable length frame transmitting method |
| KR100516671B1 (en) * | 1999-05-24 | 2005-09-22 | 삼성전자주식회사 | Variable-length Data Transmitting and Receiving Apparatus and Method in accordance with Radio Link Protocol for Mobile Telecommunication System |
| US6711177B1 (en) * | 1999-06-28 | 2004-03-23 | Rockwell Collins, Inc. | Method and apparatus for managing communication resources using frame fitting |
-
2006
- 2006-09-28 CN CNB2006101410051A patent/CN100561931C/en not_active Expired - Fee Related
- 2006-12-30 WO PCT/CN2006/003781 patent/WO2008043213A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696231A (en) * | 2010-01-05 | 2012-09-26 | 高通股份有限公司 | Application layer modification to enable transmission gaps |
| US9319737B2 (en) | 2010-01-05 | 2016-04-19 | Qualcomm Incorporated | Transport layer modification to enable transmission gaps |
| US9942606B2 (en) | 2010-01-05 | 2018-04-10 | Qualcomm Incorporated | Application layer modification to enable transmission gaps |
| CN109347815A (en) * | 2011-10-13 | 2019-02-15 | 三星电子株式会社 | Device and method for transmitting multi-medium data in hybrid network |
| US11381625B2 (en) | 2011-10-13 | 2022-07-05 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting multimedia data in hybrid network |
| US11394763B2 (en) | 2011-10-13 | 2022-07-19 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting multimedia data in hybrid network |
| CN109347815B (en) * | 2011-10-13 | 2022-09-27 | 三星电子株式会社 | Apparatus and method for transmitting multimedia data in hybrid network |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008043213A1 (en) | 2008-04-17 |
| CN100561931C (en) | 2009-11-18 |
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