CN103428484B - A kind of transmission method and device - Google Patents

A kind of transmission method and device Download PDF

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Publication number
CN103428484B
CN103428484B CN201210158917.5A CN201210158917A CN103428484B CN 103428484 B CN103428484 B CN 103428484B CN 201210158917 A CN201210158917 A CN 201210158917A CN 103428484 B CN103428484 B CN 103428484B
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rlc pdu
type
coded frame
frame data
pdu
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CN103428484A (en
Inventor
姜怡
王瑜
权威
张戬
陈玉华
宋巍巍
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210158917.5A priority Critical patent/CN103428484B/en
Priority to PCT/CN2012/076404 priority patent/WO2013174036A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/631—Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The open a kind of transmission method of the present invention and device, relate to technical field of communication network, it is provided that the transmission service of differentiation, give full play to the advantage of gradable video encoding.The scheme that the embodiment of the present invention provides includes: judge the type of the RLC PDU of encapsulation Video Applications coded frame data；When the type of described RLC PDU is the first kind, uses the first processing mode, and described RLC PDU is carried out the first transmission process；When the type of described RLC PDU is Second Type, uses the second processing mode, and described RLC PDU is carried out the second transmission process.The scheme that the embodiment of the present invention provides is suitable for carrying out using during video data frame transmission.

Description

A kind of transmission method and device
Technical field
The present invention relates to technical field of communication network, particularly relate to a kind of transmission method and device.
Background technology
At present, when using gradable coded method to encode Video Applications, the data of Video coding include Primary layer coded frame data and other enhancement layer coding Frames.Scalable encoding can form a Primary layer with primary image quality, and one or more enhancement layer with extraneous information, there is restricting relation, encode the most respectively and transmit between Primary layer and enhancement layer.Decoding end can individually decode after receiving Primary layer coded frame data, but the decoding of enhancement layer coding Frame needs to use the data of Primary layer, jointly decodes with Primary layer coded frame data, just can obtain enhanced image effect.For using the system of gradable video encoding method, in transmitting procedure, the content that video application server can send by judging network condition to determine: time as preferable in network condition, can simultaneously transmit the coded frame data of Primary layer and enhancement layer；And when network condition is poor, the most only transmit Primary layer coded frame data.
Due in wireless transmissions, the Video coding frame of one Video Applications generally only maps into a DRB (the Data Radio Bearer of wireless network, Data Radio Bearer) in, and uniquely determine a kind of RLC (Radio Link Control, wireless spread-spectrum technology) pattern, a corresponding RLC entity.One RLC AM (Acknowledged Mode, affirmation mode) entity, including the RLC AM entity recipient that a RLC AM entity sender is corresponding with.
Summary of the invention
Embodiments of the invention provide a kind of transmission method and device, it is provided that the transmission service of differentiation, give full play to the advantage of gradable video encoding.
Embodiments of the invention adopt the following technical scheme that
A kind of transmission method, including:
Judge the type of wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data；
When the type of described RLC PDU is the first kind, uses the first processing mode, and described RLC PDU is carried out the first transmission process；
When the type of described RLC PDU is Second Type, using the second processing mode, and described RLC PDU carries out the second transmission process, wherein, described second processing mode is different from described first processing mode.
A kind of transmission method, including:
Receive the RLC PDU data bag that the RLC answer-mode AM entity sender belonging to wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data sends；
Determine the type of described RLC PDU；
When the type of described RLC PDU is the first kind, use the first reception processing mode；
When the type of described RLC PDU is Second Type, using the second reception processing mode, wherein, it is different that described second reception processing mode receives processing mode from described first.
A kind of transmitting device, including:
Judging unit, for judging to encapsulate the type of wireless spread-spectrum technology rlc protocol data cell PDU of Video Applications coded frame data；
Processor, for when the type of described RLC PDU is the first kind, uses the first processing mode, and described RLC PDU is carried out the first transmission process；And when the type of described RLC PDU is Second Type, uses the second processing mode, and described RLC PDU is carried out the second transmission process, wherein, described second processing mode is different from described first processing mode.
A kind of transmitting device, including:
Receptor, for receiving the RLC PDU data bag that the RLC answer-mode AM entity sender belonging to wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data sends；
Processor, for determining the type of described RLC PDU；And when the type of described RLC PDU is the first kind, use the first reception processing mode；And when the type of described RLC PDU is Second Type, use the second reception processing mode, wherein, it is different that described second reception processing mode receives processing mode from described first.
The embodiment of the present invention provides the method and device of a kind of transmission, by judging the type of wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data；Type according to described RLC PDU carries out different process.The scheme that the embodiment of the present invention provides can provide the transmission service of differentiation, gives full play to the advantage of gradable video encoding.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The flow chart of a kind of transmission method that Fig. 1 provides for the embodiment of the present invention 1；
The flow chart of the another kind of transmission method that Fig. 2 provides for the embodiment of the present invention 1；
The block diagram of a kind of transmitting device that Fig. 3 provides for the embodiment of the present invention 1；
The block diagram of the another kind of transmitting device that Fig. 4 provides for the embodiment of the present invention 1；
The flow chart of a kind of transmission method that Fig. 5 A provides for the embodiment of the present invention 2；
The schematic diagram of a kind of transmission method that Fig. 5 B provides for the embodiment of the present invention 2；
The flow chart of the another kind of transmission method that Fig. 6 A provides for the embodiment of the present invention 2；
The schematic diagram of the another kind of transmission method that Fig. 6 B provides for the embodiment of the present invention 2；
The flow chart of the another kind of transmission method that Fig. 7 provides for the embodiment of the present invention 2；
The block diagram of a kind of transmitting device that Fig. 8 provides for the embodiment of the present invention 2；
The block diagram of the another kind of transmitting device that Fig. 9 provides for the embodiment of the present invention 2.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
nullTechnical scheme，Can apply to various wireless network，Such as: global system for mobile communications (Global System for Mobile Communications，It is called for short GSM) network、GPRS (general packet radio service) (General Packet Radio Service，It is called for short GPRS) network、CDMA (Code Division Multiple Access，It is called for short CDMA) network、WCDMA (Wideband Code Division Multiple Access，It is called for short WCDMA) network、TD SDMA (Time Division-Synchronous Code Division Multiple Access，It is called for short TD-SCDMA) network or Long Term Evolution (Long Term Evolution，It is called for short LTE) network etc..
Base station (BaseTransceiver Station during wherein base station can be GSM network, GPRS network or cdma network, it is called for short BTS), it can also be the base station (NodeB) in WCDMA network, can also is that the evolved base station (Evolutional Node B is called for short eNB or eNodeB) in LTE network.
In the embodiment of the present invention, the RLC answer-mode AM entity sender belonging to wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data, may refer to this network equipment belonging to RLC AM entity sender, can be such as base station or user terminal；Accordingly, the RLC AM entity recipient that RLC answer-mode AM entity sender belonging to RLC PDU is corresponding, may refer to this network equipment belonging to AM entity recipient, can be such as user terminal or base station.
Embodiment 1
The embodiment of the present invention provides a kind of transmission method, and the executive agent of the method is RLC AM entity sender (can be called for short " sender "), as it is shown in figure 1, the method comprises the following steps:
Step 101, it is judged that the type of wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data；
Optionally, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the type of RLC PDU is the first kind；When the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, then judge that the type of RLC PDU is Second Type.
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Such as, when the type of Video Applications coded frame data is Primary layer Video Applications coded frame data, or when the type of Video Applications coded frame data includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is high priority；Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Such as, when the type of Video Applications coded frame data is enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is low priority.
Step 102, when the type of RLC PDU is the first kind, uses the first processing mode, and RLCPDU carries out the first transmission process；
Optionally, the execution method of this step includes:
RLC PDU data bag is sent to the RLC AM entity recipient belonging to RLC PDU；Or,
Apply the first HARQ configuration parameter, and RLC PDU data bag is sent to recipient；Or,
Type information and the RLC PDU data bag of RLC PDU are sent to recipient, in order to recipient performs corresponding operation according to the type information of RLC PDU.
Step 103, when the type of RLC PDU is Second Type, uses the second processing mode, and RLCPDU carries out the second transmission process, and wherein, the second processing mode is different from the first processing mode.
Optionally, the execution method of this step includes:
After the RLC AM entity recipient belonging to RLC PDU sends RLC PDU data bag, send the first control bag, in order to make recipient not feed back the state report of Second Type RLC PDU；Or,
Apply the second HARQ configuration parameter, and RLC PDU data bag is sent to recipient；Or,
Type information and the RLC PDU data bag of RLC PDU are sent to recipient, in order to recipient performs corresponding operation according to the type information of RLC PDU.
Wherein, first controls bag includes: MRW (Moving Receiving Window, movably receiving window) control PDU, MRW control PDU and are updated for indicating recipient to control the value of instruction in PDU according to MRW, thus the state not feeding back Second Type RLC PDU is reported.
It should be noted that step 102 performs for selectivity with step 103, i.e. according to the judged result that step 101 is concrete, perform step 102 or perform step 103.
The embodiment of the present invention provides a kind of method of transmission, it is judged that the type of the RLCPDU of encapsulation Video Applications coded frame data；When the type of RLC PDU is the first kind, uses the first processing mode, and RLC PDU is carried out the first transmission process；When the type of RLC PDU is Second Type, using the second processing mode, and RLC PDU carries out the second transmission process, wherein, the second processing mode is different from the first processing mode.The scheme that the embodiment of the present invention provides, according to the type of different RLC PDU, it is provided that the transmission service of differentiation, gives full play to the advantage of scalable encoding.
The embodiment of the present invention provides another kind of transmission method, and the executive agent of the method is RLC AM entity recipient (can be called for short " recipient "), as in figure 2 it is shown, the method includes:
Step 201, receives the RLC PDU data bag that the RLC answer-mode AM entity sender belonging to wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data sends；
Step 202, determines the type of RLC PDU；
Concrete, by resolving RLC PDU, determine the type of RLC PDU, wherein, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is the first kind；When the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, it is determined that the type of RLCPDU is Second Type；Or, according to the type information of the RLC PDU that sender sends, determine the type of RLC PDU.
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Such as, when the type of Video Applications coded frame data is Primary layer Video Applications coded frame data, or when the type of Video Applications coded frame data includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is high priority；Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Such as, when the type of Video Applications coded frame data is enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is low priority.
Step 203, when the type of RLC PDU is the first kind, uses the first reception processing mode；
Concrete, when the type of RLC PDU is the first kind, send the first state report of RLC PDU to sender；Or,
When the type of RLC PDU is the first kind, apply the first HARQ configuration parameter；Or,
When the type of RLC PDU is the first kind, receives the type information of the RLC PDU that sender sends, and send the second state report of RLC PDU to sender.
Step 204, when the type of RLC PDU is Second Type, uses the second reception processing mode, and wherein, it is different that the second reception processing mode receives processing mode from first.
Concrete, when the type of RLC PDU is Second Type, receive sender send first control bag, and according to receive first control bag in instruction be received state variable VR (R) value first renewal with do not feed back Second Type RLC PDU state report；Or,
When the type of RLC PDU is Second Type, according to the type information of the RLC PDU that sender sends, after determining the type of RLC PDU, the second renewal being received state variable VR (R) value is reported with the state not feeding back Second Type RLC PDU.
It should be noted that step 203 performs for selectivity with step 204, i.e. according to the judged result that step 202 is concrete, perform step 203 or perform step 204.
The embodiment of the present invention provides a kind of method of transmission, the RLC PDU data bag sent by the RLC answer-mode AM entity sender received belonging to wireless spread-spectrum technology rlc protocol data cell PDU encapsulating Video Applications coded frame data；Resolve RLC PDU data bag, determine the type of RLC PDU；When the type of RLC PDU is the first kind, use the first reception processing mode；When the type of RLC PDU is Second Type, using the second reception processing mode, wherein, it is different that the second reception processing mode receives processing mode from first.The scheme that the embodiment of the present invention provides can provide the transmission service of differentiation, gives full play to the advantage of gradable video encoding.
The embodiment of the present invention provides a kind of transmitting device, and this device can be RLC AM entity sender (can be called for short " sender "), as it is shown on figure 3, this device includes: judging unit 301, processor 302；
Judging unit 301, for judging to encapsulate the type of wireless spread-spectrum technology rlc protocol data cell PDU of Video Applications coded frame data；
Optionally, the first judge module in judging unit 301, for being Primary layer Video Applications coded frame data when the type of the Video Applications coded frame data packaged by RLC PDU, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the type of RLC PDU is the first kind；Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Such as, when the type of Video Applications coded frame data is Primary layer Video Applications coded frame data, or when the type of Video Applications coded frame data includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is high priority；
The second judge module in judging unit 301, for when the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, then judges that the type of RLC PDU is Second Type.Further, Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Such as, when the type of Video Applications coded frame data is enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is low priority.
Processor 302, for when the type of RLC PDU is the first kind, uses the first processing mode, and RLC PDU carries out the first transmission process；And when the type of RLC PDU is Second Type, uses the second processing mode, and RLC PDU is carried out the second transmission process, wherein, the second processing mode is different from the first processing mode.
Further, the first processing module in processor 302, for when the type of RLC PDU is the first kind, send RLC PDU data bag to the RLC AM entity recipient belonging to RLC PDU；Or,
The second processing module in processor 302, for when the type of RLC PDU is the first kind, applies the first HARQ configuration parameter, and RLC PDU data bag is sent to recipient；Or,
The 3rd processing module in processor 302, for when the type of RLC PDU is the first kind, is sent to recipient by type information and the RLC PDU data bag of RLC PDU, in order to recipient performs corresponding operation according to the type information of RLC PDU.
Further, fourth processing module in processor 302, for when the type of RLC PDU is Second Type, after the RLC AM entity recipient belonging to RLC PDU sends RLC PDU data bag, send the first control bag, in order to make recipient not feed back the state report of Second Type RLC PDU；Or,
The 5th processing module in processor 302, for when the type of RLC PDU is Second Type, applies the second HARQ configuration parameter, and RLC PDU data bag is sent to recipient；Or,
The 6th processing module in processor 302, for when the type of RLC PDU is Second Type, is sent to recipient by type information and the RLC PDU data bag of RLC PDU, in order to recipient performs corresponding operation according to the type information of RLC PDU.
It should be noted that the sender in the embodiment of the present invention can be base station (such as evolution base station) or user terminal.Additionally, the present embodiment may be provided for another embodiment, i.e. include a processor, this processor can realize judging unit 301 and the function of processor 302 including in the present embodiment, and the most thus processor performs to judge the function of the type of RLC PDU and the dissimilar function carrying out differentiation process according to RLC PDU.
The embodiment of the present invention provides a kind of transmitting device, is judged the type of the RLC PDU of encapsulation Video Applications coded frame data by judging unit；Processor, for when the type of RLC PDU is the first kind, uses the first processing mode, and RLC PDU carries out the first transmission process；And when the type of RLC PDU is Second Type, uses the second processing mode, and RLC PDU is carried out the second transmission process, wherein, the second processing mode is different from the first processing mode.The scheme that the embodiment of the present invention provides can provide the transmission service of differentiation, gives full play to the advantage of gradable video encoding.
The embodiment of the present invention provides a kind of transmitting device, and this device can be RLC AM entity recipient (can be called for short " recipient "), and as shown in Figure 4, device includes: receptor 401, processor 402；
Receptor 401, for receiving the RLC PDU data bag that the RLC answer-mode AM entity sender belonging to wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data sends；
Processor 402, for determining the type of RLC PDU, and when the type of RLC PDU is the first kind, uses the first reception processing mode；And when the type of RLC PDU is Second Type, use the second reception processing mode, wherein, it is different that the second reception processing mode receives processing mode from first.
Further, processor 402 specifically for, by resolving RLC PDU, determine the type of RLC PDU, wherein, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is the first kind；And when the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is Second Type；
Or, according to the type information of the RLC PDU that sender sends, determine the type of RLC PDU.
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Such as, when the type of Video Applications coded frame data is Primary layer Video Applications coded frame data, or when the type of Video Applications coded frame data includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is high priority；
Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Such as, when the type of Video Applications coded frame data is enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is low priority.
Further, the first processing module in processor 402, for when the type of RLC PDU is the first kind, send the first state report of RLC PDU to sender；Or, the second processing module, for when the type of RLC PDU is the first kind, apply the first HARQ configuration parameter；Or, the 3rd processing module, for when the type of RLC PDU is the first kind, receives the type information of the RLC PDU that sender sends, and send the second state report of RLC PDU to sender；
Fourth processing module, for when the type of RLC PDU is Second Type, receive sender send first control bag, and according to receive first control bag in instruction be received state variable VR (R) value first renewal with do not feed back Second Type RLC PDU state report；Or, 5th processing module, for when the type of RLC PDU is Second Type, type information at the RLC PDU sent according to sender, after determining the type of RLC PDU, the second renewal being received state variable VR (R) value is reported with the state not feeding back Second Type RLC PDU.
It should be noted that the recipient in the embodiment of the present invention can be user terminal or base station.
The embodiment of the present invention provides the device of a kind of transmission, it is provided that the transmission service of differentiation, gives full play to the advantage of gradable video encoding.
Embodiment 2
A kind of transmission method that the embodiment of the present invention provides, as shown in Figure 5A, the method comprises the following steps:
Step 501, the data of Video Applications are encoded by Video Applications sender, it is thus achieved that Video Applications coded frame data；
Video Applications sender can be video application server, it is also possible to for user terminal.The data of Video Applications can be encoded by Video Applications sender to use graduated encoding mode, and the Video Applications coded frame data after coding can include Primary layer Video Applications coded frame data and/or enhancement-layer video application coded frame data.
Further, Video Applications coded frame data is sent to sender by Video Applications sender.
Step 502, sender judges to encapsulate the type of wireless spread-spectrum technology rlc protocol data cell PDU of Video Applications coded frame data；
Sender in this step can be base station, it is also possible to for user terminal.Concrete, when Video Applications sender is video application server, then the sender in this step is base station, Video Applications coded frame data after coding is sent to base station by video application server, and then base station judges to encapsulate the type of wireless spread-spectrum technology rlc protocol data cell PDU of Video Applications coded frame data.When Video Applications sender is user terminal, then the sender in this step is user terminal, specifies according to agreement, and the Video Applications coded frame data of application layer is sent to transport layer by user terminal.
Sender can judge according to Video Applications coded data frame type.Wherein, Video Applications coded data frame type includes Primary layer coded frame data and enhancement layer coding Frame.Sender can pass through D PI (Deep Packet Interpretation, deep packet resolves), judge Video Applications coded data frame type, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the type of RLC PDU is the first kind；When the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, then judge that the type of RLC PDU is Second Type.
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Such as, when the type of Video Applications coded frame data is Primary layer Video Applications coded frame data, or when the type of Video Applications coded frame data includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is high priority；
Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Such as, when the type of Video Applications coded frame data is enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is low priority.
It should be noted that DPI simply detects a kind of means of video data frame type, the embodiment of the present invention is not limited to the method.Other can interpolate that the method for detection video data frame type is the most within the scope of the present invention.
Step 503, when the type of RLC PDU is the first kind, the RLC answer-mode AM entity recipient belonging to sending direction RLC PDU sends RLC PDU data bag；
It should be noted that when sender is base station, recipient is user terminal；When sender is user terminal, recipient is base station.
Step 504, when the type of RLC PDU is Second Type, after the RLCAM entity recipient belonging to sending direction RLC PDU sends RLC PDU data bag, sends the first control bag, in order to make recipient not feed back the state report of Second Type RLC PDU；
It should be noted that step 503 and step 504 are selectable step, the type of the RLC PDU i.e. judged according to step 502, determine execution step 503 or perform step 504.
Optionally, after having sent Second Type RLC PDU, can be controlled the first transmission controlling bag by intervalometer, i.e. after having sent Second Type RLC PDU, sender starts an intervalometer.After when the timer times out, send the first control bag to corresponding recipient.The duration of intervalometer can be by base station by RRC (Radio Resource Control, wireless heterogeneous networks) signaling or MAC (Media Access Control, medium education) CE (Control Element, control element) configure, it is also possible to for the value of agreement mandatory provision.
It should be noted that, different Video coding frames is to QoS (Quality of Service, service quality) requirement different, such as base layer data frame requires that reliability is high, it is desirable that number of retransmissions is some more, but enhancement data frame need not the highest reliability, if channel condition is bad, repeatedly can ensure that transmission success although retransmitting, but from the point of view of receiving angle, enhancing to video quality is limited, wastes interface-free resources to a certain extent.Therefore, when system loading weight, the scheme using the embodiment of the present invention to provide, i.e. when RLC PDU is Second Type, after having sent RLC PDU, the first control bag can be sent to recipient, in order to control the reception window operation of recipient.Specifically, first controls bag can include that MRW controls PDU, MRW control PDU and is used for indicating recipient to be updated according to the value of MRW control PDU instruction, thus does not feed back the state report of Second Type RLC PDU.
Step 505, recipient receives the RLC PDU data bag that sender sends, and determines the type of RLC PDU；
Further, determine that the method for the type of RLC PDU includes: when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is the first kind；
When the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is Second Type.
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Concrete judgment mode is referred to step 502.
Step 506, when the type of RLC PDU is the first kind, receives direction sender and sends the first state report of RLC PDU；
First state report is used for feeding back to sender, and recipient is successfully received RLC PDU data bag.Further, also need to perform follow-up corresponding operation after being sent completely the first state report, concrete, assemble all AMD PDU outside reception window and AMD PDU segmentation, and sequentially assemble SN (the series number being properly received, serial number) AMD PDU segmentation in=VR (R), consecutive bytes segment in any byte sections segment and VR (R) corresponding A MD PDU that i.e. RLC AM recipient's entity will fall in receiving one or more AMD PDU outside window, remove PDU, it is assembled into one or more RLC SDU and is submitted to high level；Otherwise, if said one or multiple byte segment can not be assembled into one or more complete RLC SDU, then these bytes segment are abandoned.Afterwards the RLC SDU assembled is submitted to high level.
Such as, one RLC SDU is divided into two RLC AMD PDU and is transmitted, one in the two AMD PDU is correctly received, but byte segment of another one only part is successfully received, additionally byte segment of part is not successfully received, the RLC SDU not the most being fully received just has no idea correctly to be reduced at recipient's entity, then the part being properly received is the most to be discarded.
Step 507, when the type of RLC PDU is Second Type, recipient receives the first control bag that sender sends, and the first renewal being received state variable VR (R) value according to the instruction in the first control bag received is reported with the state not feeding back Second Type RLC PDU；
It should be noted that step 506 and step 507 are selectivity step, i.e. according to the type of the RLC PDU judged, and the packet that sender sends carries out corresponding reception process.
Update VR (MR) be new VR (R) with receive window size and.Wherein, VR (MR) represents reception upper window edge, and VR (R) represents reception lower window edge, and the two variable represents reception window jointly.
It should be noted that also perform follow-up corresponding operating after updating VR (R) value, concrete operation can be found in step 506, describes in detail the most one by one at this.
Such as in the schematic diagram of the transmission method shown in Fig. 5 B, with Video Applications sender as video application server, sender is base station, and recipient is described for as a example by user terminal.Concrete, the data of Video Applications are encoded by video application server, it is thus achieved that Video Applications coded frame data, and Video Applications coded frame data is sent to base station；Base station receives the Video Applications coded frame data that video application server sends, and then judges the type of the RLC PDU of encapsulation Video Applications coded frame data.When the type of RLC PDU is the first kind, send RLC PDU data bag to user terminal；When the type of RLC PDU is Second Type, sends RLC PDU data bag and first to user terminal and control bag；After user terminal receives RLC PDU data bag, determine the type of RLC PDU.When the type of RLC PDU is the first kind, send the first state report to base station, when the type of RLC PDU is Second Type, update VR (R) value according to the instruction that first controls in bag.
The embodiment of the present invention provides a kind of method of transmission, by judging the type of the RLC PDU of encapsulation Video Applications coded frame data: according to the operation that the dissimilar execution of RLC PDU is different so that give full play to the advantage of scalable encoding.
The embodiment of the present invention provides another kind of transmission method, and as shown in Figure 6A, the method includes:
Step 601, the data of Video Applications are encoded by Video Applications sender, it is thus achieved that Video Applications coded frame data；
Video Applications sender can be video application server, it is also possible to for user terminal.Specifically, can encode the data of Video Applications to use graduated encoding mode, the video data frame after coding can include Primary layer coded frame data and/or enhancement layer coding Frame.
Step 602, base station is ARQ (the Automatic Repeat request that corresponding for the DRB RLC AM entity of carrying Video Applications coded frame data is differently configured, HARQ) parameter, and connect reconfiguration course by RRC, different ARQ parameters is sent to user terminal；
Base station can be according to the dissimilar differently configured ARQ parameter of the RLC PDU that host-host protocol is encapsulation Video Applications coded frame data.Such as, the maximum retransmission of different types of RLC PDU can be configured to different values, concrete, the maximum retransmission configured for the RLC PDU of the first kind (basic model) is higher than the maximum retransmission that the RLC PDU for Second Type (enhancement mode) configures, i.e. wish that the RLC PDU of basic model retransmits, to reach preferably to transmit quality for many times；Or, parameter polling protocol data cell " poll PDU " can be configured to different values according to the dissimilar of RLC PDU, concrete, the polling protocol data element value configured for the RLC PDU of the first kind (basic model) is lower than the polling protocol data element value that the RLC PDU for Second Type (enhancement mode) configures, and i.e. wishes that the RLC PDU of basic model can status report as early as possible；Or, parameter poll bit " poll Byte " can be configured to different values according to the dissimilar of RLC PDU, concrete, the polling ratio paricular value configured for the RLC PDU of the first kind (basic model) is lower than the polling ratio paricular value that the RLC PDU for Second Type (enhancement mode) configures, and i.e. wishes that the RLC PDU of basic model can status report as early as possible.
Step 603, user terminal receives the different ARQ parameter configured according to the dissimilar of RLC PDU that base station sends, and configures ARQ parameter；
It should be noted that, between step 601 and step 602 and step 603, execution sequence is not fixed, and i.e. can first carry out step 601 according to the method that the present embodiment provides, then perform step 602 and step 603, or step 602 and step 603 can also be first carried out, then perform step 601.
Step 604, in video transmitting procedure, sender judges to encapsulate the type of the RLCPDU of Video Applications coded frame data；
Sender in this step can be base station, it is also possible to for user terminal.It should be noted that with sender as base station in Fig. 6 A, recipient is described for as a example by user terminal.Concrete, when Video Applications sender is video application server, then the sender in this step is base station, Video Applications coded frame data after coding is sent to base station by video application server, and then base station judges to encapsulate the type of wireless spread-spectrum technology rlc protocol data cell PDU of Video Applications coded frame data.When Video Applications sender is user terminal, then the sender in this step is user terminal, specify according to agreement, the Video Applications coded frame data of application layer is sent to transport layer, in order to user terminal breaks the type of wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data.
Wherein, Video Applications coded data frame type includes Primary layer coded frame data and enhancement layer coding Frame.Sender can pass through DPI, it is judged that Video Applications coded data frame type.Concrete, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLCPDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the type of RLC PDU is the first kind；The RLC PDU of the first kind can also be referred to as basic model RLC PDU, or high priority RLC PDU；
When the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, then judge that the type of RLC PDU is Second Type；The RLC PDU of Second Type can also be referred to as enhancement mode RLC PDU, or low priority RLC PDU.
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Such as, when the type of Video Applications coded frame data is Primary layer Video Applications coded frame data, or when the type of Video Applications coded frame data includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is high priority；
Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Such as, when the type of Video Applications coded frame data is enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is low priority.
It should be noted that DPI simply detects a kind of means of video data frame type, the embodiment of the present invention is not limited to the method.Other can interpolate that the method for detection video data frame type is the most within the scope of the present invention.
Step 605, when the type of RLC PDU is the first kind, applies the first HARQ configuration parameter, and RLC PDU data bag is sent to recipient；
It should be noted that recipient can be user terminal or base station.When sender is base station, recipient is user terminal；When sender is user terminal, recipient is base station.
Optionally, when the first HARQ configuration parameter is maximum retransmission, then when sender determines to retransmit certain RLC PDU or RLC PDU segmentation, the number of retransmissions of this RLC PDU accumulative.When accumulative number of retransmissions reaches the maximum retransmission thresholding of the type of RLC PDU, then perform RLC PDU and reach the operation of maximum retransmission.Concrete, if the RLC PDU of the first kind reaches maximum retransmission, then to rrc layer (Radio Resource Control, wireless heterogeneous networks) report, trigger RRC connection reconstruction process.
Optionally, RLC PDU if the first kind is configured with polling protocol data element value, when sender newly transmits the RLC PDU of a first kind, then the accumulative protocol technology cell value of the first kind increases by 1, when the accumulative protocol technology cell value of the first kind is more than or equal to the polling protocol data element value configured, then send poll instruction to recipient.Poll instruction poll is a field in PDU, is used for indicating recipient's actively triggering state report.
Optionally, RLC PDU if the first kind is configured with polling ratio paricular value, when sender newly transmits the RLC PDU of a first kind, then the accumulative bit value of the first kind increases by 1, when the accumulative bit value of the first kind is more than or equal to the polling ratio paricular value configured, then send poll instruction to recipient.
Step 606, when the type of RLC PDU is Second Type, applies the second HARQ configuration parameter, and RLC PDU data bag is sent to recipient；
It should be noted that step 605 and step 606 are selectable step, the type of the RLC PDU i.e. judged according to step 604, determine execution step 605 or perform step 606.
Optionally, when the second HARQ configuration parameter is maximum retransmission, then when sender determines to retransmit certain RLC PDU or RLC PDU segmentation, the number of retransmissions of this RLC PDU accumulative.When accumulative number of retransmissions reaches the maximum retransmission thresholding of the type of RLC PDU, then perform RLC PDU and reach the operation of maximum retransmission.Concrete, if the RLC PDU of Second Type reaches maximum retransmission, then send the first control bag to recipient, in order to make recipient not feed back the state report of Second Type RLC PDU.First controls bag includes: movably receiving window MRW controls PDU, MRW control PDU and is updated for indicating recipient to control the value of instruction in PDU according to MRW, thus does not feed back the state report of Second Type RLC PDU.
Optionally, RLC PDU if Second Type is configured with polling protocol data element value, when sender newly transmits the RLC PDU of a Second Type, then the accumulative protocol technology cell value of the first kind increases by 1, when the accumulative protocol technology cell value of Second Type is more than or equal to the polling protocol data element value configured, then send poll instruction to recipient.Poll instruction poll is a field in PDU, is used for indicating recipient's actively triggering state report.
Optionally, RLC PDU if Second Type is configured with polling ratio paricular value, when sender newly transmits the RLC PDU of a Second Type, then the accumulative bit value of Second Type increases by 1, when the accumulative bit value of Second Type is more than or equal to the polling ratio paricular value configured, then send poll instruction to recipient.
Step 607, recipient receives the RLC PDU data bag that sender sends, resolves described RLC PDU data bag, determine the type of described RLC PDU；
Concrete, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is the first kind；
When the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is Second Type.
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Concrete judgment mode is referred to step 604.
Step 608, when the type of RLC PDU is the first kind, recipient applies the first HARQ configuration parameter；
Optionally, when receiving the first kind RLC PDU carrying poll instruction, then according to the type of RLC PDU to corresponding sender actively status report.
Step 609, when the type of RLC PDU is Second Type, recipient applies the second HARQ configuration parameter.
When receiving the first control bag that sender sends, the first renewal being received state variable VR (R) value according to the first instruction controlled in bag is reported with the state not feeding back Second Type RLC PDU, concrete renewal VR (MR) be new VR (R) with receive window size and.Wherein, VR (MR) represents reception upper window edge, and VR (R) represents reception lower window edge, and the two variable represents reception window jointly.
Optionally, when receiving the Second Type RLC PDU carrying poll instruction, then actively send the report of corresponding state according to the type of RLC PDU to corresponding sender.
It should be noted that step 608 and step 609 are selectivity step in the present embodiment, i.e. carry out corresponding reception process according to the type of the RLC PDU judged, i.e. perform step 608 or perform step 609.
Such as in the schematic diagram of the transmission method shown in Fig. 6 B, with Video Applications sender as video application server, sender is base station, and recipient is described for as a example by user terminal.Concrete, that (1) base station is the most differently configured HARQ configuration parameter, and the different HARQ configuration parameter of configuration is sent to user terminal；After user terminal receives, differently configured HARQ configuration parameter.(2) data of Video Applications are encoded by video application server, it is thus achieved that Video Applications coded frame data, and Video Applications coded frame data is sent to base station；(3) base station receives the Video Applications coded frame data that video application server sends, and then judges the type of the RLC PDU of encapsulation Video Applications coded frame data.(4) when the type of RLCPDU is the first kind, apply the first HARQ configuration parameter, and send RLC PDU data bag to user terminal；(5) when the type of RLC PDU is Second Type, apply the second HARQ configuration parameter, and send RLC PDU data bag to user terminal；(6), after user terminal receives RLC PDU data bag, the type of RLC PDU is determined.(7) when the type of RLC PDU is the first kind, the first HARQ configuration parameter is applied；(8) when the type of RLC PDU is Second Type, the first control bag that sender sends is received, and according to instruction more newly received state variable VR (R) value in the first control bag received.
The embodiment of the present invention provides a kind of method of transmission, by judging the type of the RLC PDU of encapsulation Video Applications coded frame data, according to the HARQ parameter that the priority application judged is different.The scheme that the embodiment of the present invention provides, by different types of RLC PDU can provide the transmission service of differentiation, gives full play to the advantage of gradable video encoding.
The embodiment of the present invention provides another kind of transmission method, as it is shown in fig. 7, the method includes:
Step 701, the data of Video Applications are encoded by Video Applications sender, it is thus achieved that Video Applications coded frame data；
Video Applications sender can be video application server, it is also possible to for user terminal.Specifically, can encode the data of Video Applications to use graduated encoding mode, the video data frame after coding can include Primary layer coded frame data and/or enhancement layer coding Frame.
Step 702, base station is the ARQ parameter that corresponding for the DRB RLC AM entity of carrying Video Applications coded frame data is differently configured, and connects reconfiguration course by RRC, different ARQ parameters is sent to user terminal；
Base station can be according to the differently configured ARQ parameter of the different priorities of RLC PDU that host-host protocol is encapsulation Video Applications coded frame data.Need to carry out state report for example, it is possible to configure only high priority RLC PDU；It can be the duration differently configured for intervalometer t_Reordering of the RLC PDU of different priorities.
Step 703, user terminal receives the different ARQ parameter configured according to different RLC PDU priority that base station sends, and configures these ARQ parameters；
It should be noted that, between step 701 and step 702 and step 703, execution sequence is not fixed, and i.e. can first carry out step 701 according to the method that the present embodiment provides, then perform step 702 and step 703, or step 702 and step 703 can also be first carried out, then perform step 701.
Step 704, in video transmitting procedure, sender judges to encapsulate the type of the RLCPDU of Video Applications coded frame data；
Wherein, Video Applications coded data frame type includes Primary layer coded frame data and enhancement layer coding Frame.Sender can pass through DPI, it is judged that Video Applications coded data frame type.Concrete, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLCPDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the type of RLC PDU is the first kind；The RLC PDU of the first kind can also be referred to as basic model RLC PDU, or high priority RLC PDU；
When the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, then judge that the type of RLC PDU is Second Type；The RLC PDU of Second Type can also be referred to as enhancement mode RLC PDU, or low priority RLC PDU.
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Such as, when the type of Video Applications coded frame data is Primary layer Video Applications coded frame data, or when the type of Video Applications coded frame data includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is high priority；
Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Such as, when the type of Video Applications coded frame data is enhancement-layer video application coded frame data, then judge that the priority of RLC PDU is low priority.
It should be noted that DPI simply detects a kind of means of video data frame type, the embodiment of the present invention is not limited to the method.Other can interpolate that the method for detection video data frame type is the most within the scope of the present invention.
Step 705, when the type of RLC PDU is the first kind, type information and the RLC PDU data bag of the RLC PDU that sender will determine that are sent to recipient, in order to recipient performs corresponding operation according to the type information of RLC PDU；
It should be noted that recipient can be user terminal or base station.When sender is base station, recipient is user terminal；When sender is user terminal, recipient is base station.
Optionally, by carrying type information in RLC PDU, i.e. carry the respective field of type information by increase in the header of RLC PDU and be sent to recipient.Type information can be the type information of current RLC PDU self；Can also be the type of the RLC PDU that its top n is sent, wherein N be the integer more than or equal to 1.It should be noted that the operation that in the present invention, embodiment relates to add and subtract sequence number SN of RLC PDU is the plus-minus sending or receiving window size.Such as, sending or receive window size is 512, and the SN of current RLC PDU is 1, and N is 2, then what current RLC PDU carried is, and SN is the type of the RLC PDU of 511.
Optionally, presetting RLC and control PDU, RLC is controlled PDU and is sent to recipient by sender, and RLC controls PDU for the type carrying current RLC PDU or the type information of RLC PDU sent.Optionally, RLC is controlled PDU when being sent to recipient by sender, RLC can be controlled PDU be placed in one control bag in be sent to recipient, such as, second control bag is sent to recipient, wherein, second controls to include to preset RLC and controls PDU, RLC and control PDU and be used for the type carrying current RLC PDU or the type of RLC PDU sent.
Step 706, when the type of RLC PDU is Second Type, type information and the RLC PDU data bag of the RLC PDU that sender will determine that are sent to recipient, in order to recipient performs corresponding operation according to the type information of RLC PDU；
It should be noted that step 705 and step 706 are selectivity step, i.e. according to the type of the RLC PDU judged, continuous work performs step 705 or performs step 706.
The execution method that this step is concrete is identical with step 705, except for the difference that the type of RLC PDU, specifically can be found in step 705.
Step 707, recipient receives the RLC PDU data bag that sender sends, determines the type of RLC PDU；
Concrete, by resolving RLC PDU, determine the type of RLC PDU, wherein, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is the first kind；When the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, it is determined that the type of RLCPDU is Second Type；
Further, in the embodiment of the present invention, type and priority can be the relation mapped one by one, and concrete, the first kind can map one by one with high priority, i.e. when the type judging RLC PDU is the first kind, that is judge that the priority of RLC PDU is high priority.Second Type can map one by one with low priority, i.e. when the type judging RLC PDU is Second Type, that is judges that the priority of RLC PDU is low priority.Concrete judgment mode can be referring in particular to step 704；
Or, according to the type information of the RLC PDU that sender sends, determine the type of RLC PDU.
Step 708, when the type of RLC PDU is the first kind, sends the first state report of RLC PDU to sender；
Optionally, as the RLC PDU that RLC PDU is the first kind, the RLC PDU of the first kind is sent the first state report.
Step 709, when the type of RLC PDU is Second Type, according to the type information of the RLC PDU that sender sends, after determining the type of RLC PDU, the second renewal being received state variable VR (R) value is reported with the state not feeding back Second Type RLC PDU.
Concrete, receive the second control bag, control that bag is preset RLC according to second and control the type information that PDU carries, movably receiving window, and update VR (R) value to VR (R) value of a RLC PDU, wherein, a RLC PDU is first SN (series number in the RLC PDU received, serial number) more than the SN of current RLC PDU, and the RLC PDU not being completely received.
It should be noted that step 708 and step 709 are selectivity step, i.e. according to the type of the RLC PDU judged, carry out corresponding reception process.
The embodiment of the present invention provides a kind of method of transmission, by judging the type of the RLC PDU of encapsulation Video Applications coded frame data, according to the dissimilar execution different disposal judging RLC PDU so that give full play to the advantage of scalable encoding.
It should be noted that, when the transport layer protocol of above-mentioned transmission of video employs TCP (Transmission Control Protocol, transmission control protocol) time, for enhancement-layer video application coded frame data, during if owing to apply above-described embodiment and be dropped, recipient can reconstruct the packet data delivery of a Video Applications coded frame data and give TCP layer, thus avoids unnecessary TCP layer to retransmit.
The embodiment of the present invention provides a kind of transmitting device, this device can be RLC AM entity sender (can be called for short " sender "), this sender can be base station (such as evolution base station) or user terminal, as shown in Figure 8, this device includes: judging unit 801, processor 802, processor 802 includes such as one or a combination set of lower module: the first processing module 8021, second processing module 8022,3rd processing module 8023, fourth processing module 8024, the 5th processing module 8025, the 6th processing module 8026；
Judging unit 801, for judging the type of wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data；
Further, judging unit 801 is specifically for being Primary layer Video Applications coded frame data when the type of the Video Applications coded frame data packaged by RLC PDU, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the type of RLC PDU is the first kind；And when the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, then judge that the type of RLC PDU is Second Type.
Processor 802, for when the type of RLC PDU is the first kind, uses the first processing mode, and RLC PDU carries out the first transmission process；And when the type of RLC PDU is Second Type, uses the second processing mode, and RLC PDU is carried out the second transmission process, wherein, the second processing mode is different from the first processing mode.
Further, the first processing module 8021 in processor 802, for when the type of RLC PDU is the first kind, send RLC PDU data bag to the RLC AM entity recipient belonging to RLC PDU；Or,
The second processing module 8022 in processor 802, for when the type of RLC PDU is the first kind, applies the first HARQ configuration parameter, and RLC PDU data bag is sent to recipient；Or,
The 3rd processing module 8023 in processor 802, for when the type of RLC PDU is the first kind, is sent to recipient by type information and the RLC PDU data bag of RLC PDU, in order to recipient performs corresponding operation according to the type information of RLC PDU；
Fourth processing module 8024 in processor 802, for when the type of RLC PDU is Second Type, after the RLC AM entity recipient belonging to RLC PDU sends RLC PDU data bag, send the first control bag, in order to make recipient not feed back the state report of Second Type RLC PDU；Or,
The 5th processing module 8025 in processor 802, for when the type of RLC PDU is Second Type, applies the second HARQ configuration parameter, and RLC PDU data bag is sent to recipient；Or,
The 6th processing module 8026 in processor 802, for when the type of RLC PDU is Second Type, is sent to recipient by type information and the RLC PDU data bag of RLC PDU, in order to recipient performs corresponding operation according to the type information of RLC PDU.
Further, when HARQ configuration parameter is maximum retransmission, second processing module 8022, for when first kind RLC PDU adds up the maximum retransmission thresholding that number of retransmissions reaches configuration, reports to radio resource control RRC layer and triggers RRC and rebuild；
5th processing module 8035 is specifically for when Second Type RLC PDU adds up the maximum retransmission thresholding that number of retransmissions reaches configuration, sending the first control bag to recipient, in order to make recipient not feed back the state report of Second Type RLC PDU.
Wherein, first controls bag may include that movably receiving window MRW controls PDU, MRW control PDU and is updated for indicating recipient to control the value of instruction in PDU according to MRW, thus does not feed back the state report of Second Type RLCPDU.
Further, the 3rd processing module 8023 or the 6th processing module 8036 specifically for:
Increasing in the packet header of RLC PDU and carry the field of kind of message and be sent to recipient, kind of message is the type of current RLC PDU or the type of RLC PDU sent；Or,
Presetting RLC and control PDU, and RLC controls PDU be sent to recipient, RLC controls PDU for the type carrying current RLC PDU or the type of RLC PDU sent.
It should be noted that, in the present embodiment, judging unit 801 can be completed by a processor with the function of processor 802, in other words, this processor is used for performing to judge the function that the function of the type of RLC PDU and the dissimilar execution differentiation according to RLC PDU process.
The embodiment of the present invention provides a kind of transmitting device, is judged the type of RLC PDU by judging unit；Processor, for when the type of RLC PDU is the first kind, uses the first processing mode, and RLC PDU carries out the first transmission process；And when the type of RLC PDU is Second Type, uses the second processing mode, and RLC PDU is carried out the second transmission process, wherein, the second processing mode is different from the first processing mode.The scheme that the embodiment of the present invention provides is by the different disposal to different types of RLC PDU so that give full play to the advantage of scalable encoding.
The embodiment of the present invention provides a kind of transmitting device, this device can be RLC AM entity recipient (can be called for short " recipient "), sender can be user terminal or base station (such as " evolution base station "), as shown in Figure 9, this device includes: receptor 901, processor 902, wherein, processor 902 includes such as one or a combination set of lower module: the first processing module 9031, second processing module 9032,3rd processing module 9033, fourth processing module 9034, the 5th processing module 9035；
Receptor 901, for receiving the RLC PDU data bag that the RLC answer-mode AM entity sender belonging to wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data sends；
According to RLC PDU data bag, processor 902, for determining the type of RLC PDU, and when the type of RLC PDU is the first kind, use the first reception processing mode；And when the type of RLC PDU is Second Type, use the second reception processing mode, wherein, it is different that the second reception processing mode receives processing mode from first.
Further, processor 902 specifically for: by resolve RLC PDU, determine the type of RLC PDU, wherein, when the type of the Video Applications coded frame data packaged by RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is the first kind；And when the type of the Video Applications coded frame data packaged by RLC PDU is enhancement-layer video application coded frame data, it is determined that the type of RLC PDU is Second Type；
Or, according to the type information of the RLC PDU that sender sends, determine the type of RLC PDU.
Further, when the type of RLC PDU is the first kind, the first processing module 9021 in processor 902, for when the type of RLC PDU is the first kind, send the first state report of RLC PDU to sender；Or, the second processing module 9022 in processor 902, for when the type of RLC PDU is the first kind, when the type of RLC PDU is the first kind, apply the first HARQ configuration parameter；Or, the 3rd processing module 9023 in processor 902, for when the type of RLC PDU is the first kind, when the type of RLC PDU is the first kind, receive the type information of the RLC PDU that sender sends, and send the second state report of RLC PDU to sender；
Fourth processing module 9024 in processor 902, for when the type of RLC PDU is Second Type, receive sender send first control bag, and according to receive first control bag in instruction be received state variable VR (R) value first renewal with do not feed back Second Type RLC PDU state report；Or, the 5th processing module 9025 in processor 902, for when the type of RLC PDU is Second Type, type information at the RLC PDU sent according to sender, after determining the type of RLC PDU, the second renewal being received state variable VR (R) value is reported with the state not feeding back Second Type RLC PDU.
Further, receive the first renewal of state variable VR (R) value can be update VR (MR) be new VR (R) with reception window size and.Wherein, VR (MR) represents reception upper window edge, and VR (R) represents reception lower window edge, and the two variable represents reception window jointly；
The second renewal receiving state variable VR (R) value can be that renewal VR (R) value is to VR (R) value of a RLC PDU, wherein, oneth RLC PDU is first SN (series number in the RLC PDU received, serial number) more than the SN of current RLC PDU, and the RLC PDU not being completely received.
The embodiment of the present invention provides transmitting device in, receives the RLC PDU data bag that sender sends, processor by receptor, for determining the type of RLC PDU, and when the type of RLC PDU is the first kind, uses the first reception processing mode；When the type of RLC PDU is Second Type, and using the second reception processing mode, wherein, it is different that the second reception processing mode receives processing mode from first.The device that the present invention is provided can provide the transmission service of differentiation, gives full play to the advantage of scalable encoding.
Through the above description of the embodiments, those skilled in the art is it can be understood that can add the mode of required common hardware by software to the present invention and realize, naturally it is also possible to by hardware, but a lot of in the case of the former is more preferably embodiment.Based on such understanding, the part that prior art is contributed by technical scheme the most in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk such as computer, hard disk or CD etc., including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) performs the method described in each embodiment of the present invention.
The above; being only the detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.

Claims (12)

1. a transmission method, it is characterised in that including:
Judge the type of wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data；
When the type of described RLC PDU is the first kind, uses the first processing mode, and described RLC PDU is carried out the first transmission process；
When the type of described RLC PDU is Second Type, using the second processing mode, and described RLC PDU carries out the second transmission process, wherein, described second processing mode is different from described first processing mode；
Described employing the first processing mode, and described RLC PDU is carried out first transmission process include:
RLC PDU data bag is sent to the RLC AM entity recipient belonging to described RLC PDU；Or,
Apply the first HARQ configuration parameter, and described RLC PDU data bag is sent to described recipient；Or,
Type information and the described RLC PDU data bag of described RLC PDU are sent to described recipient, in order to described recipient performs corresponding operation according to the type information of described RLC PDU；
And/or,
Described employing the second processing mode, and described RLC PDU is carried out second transmission process include:
After the RLC AM entity recipient belonging to described RLC PDU sends RLC PDU data bag, send the first control bag, in order to make described recipient not feed back the state report of Second Type RLC PDU；Or,
Apply the second HARQ configuration parameter, and described RLC PDU data bag is sent to described recipient；Or,
Type information and the described RLC PDU data bag of described RLC PDU are sent to described recipient, in order to described recipient performs corresponding operation according to the type information of described RLC PDU.
Method the most according to claim 1, it is characterised in that the type of wireless spread-spectrum technology rlc protocol data cell PDU of described judgement encapsulation Video Applications coded frame data, including:
When the type of the Video Applications coded frame data packaged by described RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by described RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the type of described RLC PDU is the first kind；
When the type of the Video Applications coded frame data packaged by described RLC PDU is enhancement-layer video application coded frame data, then judge that the type of described RLC PDU is Second Type.
Method the most according to claim 1, it is characterised in that
When described HARQ configuration parameter includes maximum retransmission, described application the first HARQ configuration parameter includes: when first kind RLC PDU adds up the maximum retransmission thresholding that number of retransmissions reaches configuration, reports to radio resource control RRC layer and triggers RRC and rebuilds；
Described application the second HARQ configuration parameter includes: when Second Type RLC PDU adds up the maximum retransmission thresholding that number of retransmissions reaches configuration, send described first to described recipient and control bag, in order to make described recipient not feed back the state report of Second Type RLC PDU.
Method the most according to claim 1, it is characterised in that the described type information by described RLC PDU and described RLC PDU data bag are sent to described recipient and include:
Increasing in the packet header of described RLC PDU and carry the field of type information and be sent to described recipient, described type information is the type of current RLC PDU or the type of RLC PDU sent；Or,
Presetting RLC and control PDU, and described RLC control PDU is sent to described recipient, described RLC controls PDU for the type carrying current RLC PDU or the type of RLC PDU sent.
5. a transmission method, it is characterised in that including:
Receive the RLC PDU data bag that the RLC answer-mode AM entity sender belonging to wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data sends；
Determine the type of described RLC PDU；
When the type of described RLC PDU is the first kind, use the first reception processing mode；
When the type of described RLC PDU is Second Type, using the second reception processing mode, wherein, it is different that described second reception processing mode receives processing mode from described first；
Described employing first receives processing mode and includes:
The first state report of described RLC PDU is sent to described sender；Or,
Apply the first HARQ configuration parameter；Or,
Receive the type information of the RLC PDU that described sender sends, and send the second state report of described RLCPDU to described sender；
And/or,
Described employing second receives processing mode and includes:
Receive described sender send first control bag, and according to receive first control bag in instruction be received state variable VR (R) value first renewal with do not feed back Second Type RLC PDU state report；Or,
According to the type information of the RLC PDU that described sender sends, after determining the type of described RLC PDU, the second renewal being received state variable VR (R) value is reported with the state not feeding back Second Type RLC PDU.
Method the most according to claim 5, it is characterised in that the described type determining described RLC PDU includes:
By resolving described RLC PDU, determine the type of described RLC PDU, wherein, when the type of the Video Applications coded frame data packaged by described RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by described RLC PDU includes described Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, the type then determining described RLC PDU is the first kind, when the type of the Video Applications coded frame data packaged by described RLC PDU is enhancement-layer video application coded frame data, the type then determining described RLC PDU is Second Type；
Or, according to the type information of the RLC PDU that described sender sends, determine the type of described RLC PDU.
7. a transmitting device, it is characterised in that including:
Judging unit, for judging to encapsulate the type of wireless spread-spectrum technology rlc protocol data cell PDU of Video Applications coded frame data；
Processor, for when the type of described RLC PDU is the first kind, uses the first processing mode, and described RLC PDU is carried out the first transmission process；And when the type of described RLC PDU is Second Type, uses the second processing mode, and described RLC PDU is carried out the second transmission process, wherein, described second processing mode is different from described first processing mode；
Described processor includes:
First processing module, for when the type of described RLC PDU is the first kind, sends RLC PDU data bag to the RLC AM entity recipient belonging to described RLC PDU；Or, the second processing module, for when the type of described RLC PDU is the first kind, applies the first HARQ configuration parameter, and described RLC PDU data bag is sent to described recipient；Or, 3rd processing module, for when the type of described RLC PDU is the first kind, type information and the described RLC PDU data bag of described RLC PDU are sent to described recipient, in order to described recipient performs corresponding operation according to the type information of described RLC PDU；
Fourth processing module, for when the type of described RLC PDU is Second Type, after the RLC AM entity recipient belonging to described RLC PDU sends RLC PDU data bag, send the first control bag, in order to make described recipient not feed back the state report of Second Type RLC PDU；Or, the 5th processing module, for when the type of described RLC PDU is Second Type, applies the second HARQ configuration parameter, and described RLC PDU data bag is sent to described recipient；Or, 6th processing module, for when the type of described RLC PDU is Second Type, type information and the described RLC PDU data bag of described RLC PDU are sent to described recipient, in order to described recipient performs corresponding operation according to the type information of described RLC PDU.
Device the most according to claim 7, it is characterised in that described judging unit specifically for:
When the type of the Video Applications coded frame data packaged by described RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by described RLC PDU includes Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, then judge that the type of described RLC PDU is the first kind；
Or, when the type of the Video Applications coded frame data packaged by described RLC PDU is enhancement-layer video application coded frame data, then judge that the type of described RLC PDU is Second Type.
Device the most according to claim 7, it is characterised in that when described HARQ configuration parameter includes maximum retransmission,
Described second processing module, specifically for when first kind RLC PDU adds up the maximum retransmission thresholding that number of retransmissions reaches configuration, is reported to radio resource control RRC layer and is triggered RRC and rebuild；
Described 5th processing module is specifically for when Second Type RLC PDU adds up the maximum retransmission thresholding that number of retransmissions reaches configuration, send described first to described recipient and control bag, in order to make described recipient not feed back the state report of Second Type RLC PDU.
Device the most according to claim 7, it is characterised in that described 3rd processing module or the 6th processing module specifically for:
Increasing in the packet header of described RLC PDU and carry the field of type information and be sent to described recipient, described type information is the type of current RLC PDU or the type of RLC PDU sent；Or,
Presetting RLC and control PDU, and described RLC control PDU is sent to described recipient, described RLC controls PDU for the type carrying current RLC PDU or the type of RLC PDU sent.
11. 1 kinds of transmitting devices, it is characterised in that including:
Receptor, for receiving the RLC PDU data bag that the RLC answer-mode AM entity sender belonging to wireless spread-spectrum technology rlc protocol data cell PDU of encapsulation Video Applications coded frame data sends；
Processor, for determining the type of described RLC PDU, and when the type of described RLC PDU is the first kind, uses the first reception processing mode；And when the type of described RLC PDU is Second Type, use the second reception processing mode, wherein, it is different that described second reception processing mode receives processing mode from described first；
Described processor includes:
First processing module, for when the type of described RLC PDU is the first kind, sends the first state report of described RLC PDU to described sender；Or, the second processing module, for when the type of described RLC PDU is the first kind, apply the first HARQ configuration parameter；Or, the 3rd processing module, for when the type of described RLC PDU is the first kind, receives the type information of the RLC PDU that described sender sends, and send the second state report of described RLC PDU to described sender；
Fourth processing module, for when the type of described RLC PDU is Second Type, receive described sender send first control bag, and according to receive first control bag in instruction be received state variable VR (R) value first renewal with do not feed back Second Type RLC PDU state report；Or, 5th processing module, for the type information at the RLC PDU sent according to described sender, after determining the type of described RLC PDU, the second renewal being received state variable VR (R) value is reported with the state not feeding back Second Type RLC PDU.
12. devices according to claim 11, it is characterised in that described processor specifically for:
By resolving described RLC PDU, determine the type of described RLC PDU, wherein, when the type of the Video Applications coded frame data packaged by described RLC PDU is Primary layer Video Applications coded frame data, or when the type of the Video Applications coded frame data packaged by described RLC PDU includes described Primary layer Video Applications coded frame data and enhancement-layer video application coded frame data, the type then determining described RLC PDU is the first kind, and when the type of the Video Applications coded frame data packaged by described RLC PDU is enhancement-layer video application coded frame data, the type stating RLC PDU described in then determining is Second Type；
Or, according to the type information of the RLC PDU that described sender sends, determine the type of described RLC PDU.
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