WO2012099421A2 - 멀티미디어 데이터 패킷을 송신하는 방법 및 장치 - Google Patents
멀티미디어 데이터 패킷을 송신하는 방법 및 장치 Download PDFInfo
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Definitions
- the present invention relates to a method and apparatus for transmitting a multimedia data packet, and more particularly, to a method and apparatus for adaptively transmitting a multimedia data packet according to a QoS scheme.
- Multimedia services are interactive services such as video telephony, streaming services such as video on demand (VOD) services, and services such as multicast and broadcast services.
- Real-time multimedia services can be divided into interactive services, interactive services, and streaming services, depending on the type of service.
- the real-time multimedia service may be divided into unicast, multicast, and broadcast according to the number of users participating.
- a method of providing a quality of service (QoS) in a network can be broadly classified into a BE (best effort) method, a per class QoS (QoS) method, and a per flow QoS (QoS) method. have.
- the BE scheme does not provide any support for QoS.
- the QoS method by class is a method of processing according to importance in the middle of the network by varying the importance of each packet. That is, the QoS method for each class is a method of controlling QoS according to the importance of the packet, that is, the priority, regardless of which flow the packet belongs to.
- the priority includes a loss priority, a delay priority, and the like.
- the QoS method for each flow is a method of reserving resources for each stream. That is, a method of reserving a resource (eg, bit rate, buffer state) or QoS (delay, loss rate, etc.) for each flow.
- a resource eg, bit rate, buffer state
- QoS delay, loss rate, etc.
- the flow refers to a stream required for one service. For example, the video stream, audio stream, and text stream required to provide on-demand video services become separate flows.
- the UMTS (3G) of 3GPP is standardized to support QoS by class and QoS by flow.
- an interface between a media layer, which is a higher layer, and a network, which is a lower layer, is required.
- each packet is different for each video packet when using Moving Picture Experts Group (MPEG) -2 and H.264 or in particular, scalable video coding (SVC).
- MPEG Moving Picture Experts Group
- SVC scalable video coding
- IPv6 IPv6
- the packet switching method reads 5 parameters (5 turples: recipient address, sender address, port number of corresponding service in receiver, port number of corresponding service in transmitter, and protocol used) in IPv6 header.
- the payload of the video packet must read header data that identifies the importance of the packet. This approach not only takes a lot of processing time per packet, but also violates protocol layer independence, meaning that routers only need to read the packet's IP header and be able to process the packet.
- QoS quality of service
- scalable video coding (SVC) technology or multi-view video coding (MVC) technology which is currently being standardized, is based on the H.264 / Advanced Video Coding (AVC) standard.
- AVC Advanced Video Coding
- NALU network abstraction layer unit
- FIG. 1 is a diagram for explaining a video coding layer (or a video coding layer (VCL)) and a network abstraction layer (NAL) in H.264 / AVC.
- VCL video coding layer
- NAL network abstraction layer
- a Network Abstraction Layer (VCL) 110 between a video coding layer (VCL) 110 that handles the video encoding process itself and a subsystem 130 that transmits and stores the encoded information.
- NAL 120 is defined so that the video coding layer (VCL) and the network abstraction layer (NAL) are separated.
- the NAL 120 processes the coded data 111 generated in the VCL and information of a parameter set or Supplemental Enhancement Information (SEI) and the like 113 in a NAL unit (NALU).
- SEI Supplemental Enhancement Information
- the NAL unit is divided into a VCL NAL unit 123 and a non VCL NAL unit 125.
- the VCL NAL unit 123 is a NAL unit corresponding to the encoded data 111 generated in the VCL
- the non-VCL NAL unit 125 is a NAL unit corresponding to information of a parameter set or SEI 113. .
- the NAL unit basically includes a NAL header and a raw byte sequence payload (RBSP), which is a data portion generated as a result of video compression in the VCL.
- RBSP raw byte sequence payload
- FIG. 2 is a diagram for describing a format of an NAL unit.
- the NAL unit 200 includes a NAL header 210 and a NAL payload 240.
- NAL header 210 generally has a size of 1 to 5 bytes.
- the NAL header 210 includes NALU type information 220 for indicating the type of NAL unit and layer identification information 230 for identifying a layer of compressed original data included in the NALU payload. ).
- the NALU type information 220 includes a 1-bit fixed bit (F) field 221, a 2-bit NRI (nal_ref_idc) field 222 which is a flag indicating whether or not it is a reference picture, and an identifier indicating the type of a NAL unit. 5 bits NALU Type field 223 is included.
- the layer identification information 230 may include, for example, a combination of priority, spatial layering level, temporal layering level, and / or quality layering level. That is, the layer identification information 230 is an 8-bit Priority field (hereinafter referred to as P) 231 for indicating a priority so that the layer of the compressed original data can be identified, and the spatial layering level. 3 to 8 bit Dependency_id (dependency ID) field (hereinafter referred to as D) 232, and 3 to 8 bit Temporal_level (temporal level) field to indicate temporal layering level (hereinafter, 233, and / or a Quality level level (hereinafter referred to as Q) 234 of 2 to 8 bits to indicate the quality layering level.
- P 8-bit Priority field
- D Dependency ID
- Q Temporal_level
- the format of the NALU is equally used in MVC (Multi-view Video Coding).
- view identification information for identifying a view instead of the layer identification information 230 may be included in the NAL header together with the NALU type information 220.
- both the layer identification information 230 and the view identification information of the NAL header must be parsed.
- the layer identification information 230 has a size of 4 bytes or less, and all the values of P (231), D (232), T (233), and Q (234) must be known through parsing of the NAL header 210.
- the layer to which the corresponding NAL unit belongs can be determined.
- parsing all of the NAL header 210 to know the values of P (231), D (232), T (233), and Q (234) of the NAL header 210 burdens the processor and increases the cost of the system. It can cause an increase.
- the NAL header 210 includes a NRI field 222 and a Priority field (P) 231 as well as packets such as layer identification information 230 such as the D 232, the T 233, and the Q 234.
- layer identification information 230 such as the D 232, the T 233, and the Q 234.
- D 232, T 233, and Q 234 a packet having '1' as the value of D 232 and '1' as the value of T 233.
- the superiority and priority of the two packets cannot be distinguished.
- NAL network abstraction layer
- the present invention provides a method and apparatus for providing an adaptive multimedia service when providing a multimedia service.
- the present invention provides a method and apparatus for providing a multimedia service through a media abstraction layer that abstracts various media elements so that information of an application layer may be utilized in a lower network layer.
- the present invention provides a method and apparatus for providing a multimedia service through a media abstraction layer that provides specific importance information for a lower layer based on the understanding at the MPEG level.
- the present invention provides a method and apparatus for providing a multimedia service that includes information generated through the media abstraction layer in an IP header to facilitate access to necessary information by simple processing in a lower layer.
- a method for transmitting a multimedia data packet includes generating media abstraction layer (MAL) information regarding multimedia data to be transmitted, generating a multimedia data packet including the MAL information, and generating the generated multimedia data packet. Sending a data packet to the network entity.
- MAL media abstraction layer
- a method for forwarding a multimedia data packet by an entity on a network may include receiving a multimedia packet including media abstraction layer information (MAL) information from a transmitting device, and receiving the multimedia packet according to the received MAL information. Forwarding the multimedia packet.
- MAL media abstraction layer information
- the apparatus for transmitting a multimedia data packet includes a media abstraction layer unit for generating media abstraction layer (MAL) information about the multimedia data to be transmitted, and generates a multimedia data packet including the MAL information, And a packet generator for transmitting the generated multimedia data packet to the network entity.
- MAL media abstraction layer
- the network entity device for forwarding the multimedia data packet provided by the present invention, receiving a multimedia packet including media abstraction layer information (MAL) information from the transmitting device, and forwarding the multimedia packet according to the received MAL information It includes a forwarding policy decision unit.
- MAL media abstraction layer information
- the present invention can provide a multimedia service by providing a media abstraction layer applicable to all multimedia data, reflecting the importance or priority of media data, resource reservation status, network status, or user requirements.
- the present invention provides a simplified header structure so that the device receiving the IP packet does not have to parse fields corresponding to the flow label every time, thereby enabling efficient use of the resource of the receiving device.
- FIG. 1 is a diagram for explaining a video coding layer and a network abstraction layer in H.264 / AVC.
- FIG. 2 is a diagram for explaining a format in NAL units.
- FIG. 3 is a diagram illustrating a configuration of a transmitting apparatus according to an embodiment of the present invention.
- FIG. 4 is a diagram illustrating a method of including MAL information in an IP packet according to an embodiment of the present invention.
- FIG. 5 is a diagram for explaining a structure of an IP packet header including MAL information according to an embodiment of the present invention.
- FIG. 6 is a diagram illustrating a configuration of a MANE according to an embodiment of the present invention.
- FIG. 7 is a diagram illustrating a configuration of a receiving apparatus according to an embodiment of the present invention.
- a network abstraction layer used in MPEG-4 / AVC (Advanced Video Coding (H.264), Scalable Video Coding (SVC), Multi-view Video Coding (MVC), etc.), which are standards for video data.
- NAL Network Abstraction Layer
- the existing NAL header 210 includes various information indicating the importance of a video packet.
- the NAL header used in the SVC includes layer recognition information 230 that can recognize a temporal layer, a spatial layer, and a quality layer
- the NAL header used in the MVC includes information indicating a view number. It is.
- the information included in the NAL header is information generated by being abstracted from a top-down interface transferred from an upper protocol layer to a lower protocol layer and may indicate the importance of a corresponding packet. According to the state of the packet service can be adaptively provided.
- the present invention defines the identifier "media classifier” and "label” in order to extend the concept of the NAL to all media.
- the "media separator” is responsible for providing abstracted priority information so that priority information of the media can be utilized without specific understanding of the media in the lower protocol layer.
- the "label” is an identifier for distinguishing each stream (for example, a video stream or an audio stream).
- MAL Media Abstraction Layer
- MAL information data related information abstracted from the MAL may be referred to as MAL information.
- the transmitting apparatus (server or terminal) generates the MAL information and includes the packet in the header of the packet and transmits the packet.
- the network entity (router or base station, etc.) uses the MAL information to determine the importance or resource reservation of the packet. And transmit the packet accordingly.
- FIG. 3 is a diagram illustrating a configuration of a transmitting device 300 according to an embodiment of the present invention.
- the transmission apparatus 300 of the present invention includes a media data supply unit 301, a media abstraction layer unit 302, and a packet generator 303.
- the transmission device 300 may be, for example, a server that provides a multimedia service.
- the media abstraction layer unit 302 receives one IP packet from the media data supply unit 301 (308), generates MAL information, and delivers it to the packet generator 303 (310).
- the media abstraction layer unit 302 transmits the IP packet received from the media data supply unit 301 to the packet generator 303 (309).
- the MAL information on the media data generated by the media abstraction layer unit 302 may include media identifier information and label information.
- the media identifier information may be used to recognize abstracted importance information of the media packet in a lower network
- the label information may be used for the lower network to identify the packet.
- the packet generator 303 generates a packet using the received MAL information 310 and the IP packet 309 from the media abstraction layer unit 302, and transmits the generated packet through the network 313.
- Media identifier information and label information included in the MAL information may be included in a header of an IP packet or a packet header of another lower protocol.
- the media identifier of the audio data stream is 1
- the media identifier of the character data stream is 2
- the media identifier of the video data stream is 3
- the server and the terminal are previously promised (or set).
- the priority for the stream in which the media separator is set is also promised between the transmitting side, the network entity, and the receiving side.
- the packet when the transmitting side wants to transmit a video data packet, the packet is generated and transmitted by setting the media identifier information to 3 in the packet.
- the network entity eg, a router
- the network entity may recognize the QoS class of the received packet through the media identifier information (ie, 3) of the received packet. Thereafter, the network entity may determine whether to forward the packet in consideration of the network state and the forwarding policy of the QoS class.
- the label of the audio data stream is 1, the label of the text data stream is 2, and the label of the video data stream is 3, and the appointment is set in advance (or set) between the server and the terminal.
- the packet when the transmitting side wants to transmit the video data packet, the packet is set and the label information is set to 3 to generate and transmit the packet. Then, the network entity (for example, the router) may recognize the importance, priority, or resource reservation information of the received packet through the label information (ie, 3) of the received packet. Thereafter, the network entity may transmit the packet in consideration of network status and importance, priority, or resource reservation information of the received packet.
- the network entity for example, the router
- the network entity may transmit the packet in consideration of network status and importance, priority, or resource reservation information of the received packet.
- the label for each data stream and the importance, priority, or resource reservation information according to the label may be set in a call setup process between a transmitter, a receiver, and a network entity.
- MAL information which is media abstraction layer information proposed by the present invention will be described.
- the MAL information is used to allow the lower-level network entities to recognize the abstracted QoS class of the media and to recognize the loss and delay importance, priority, or resource reservation information of the data packet.
- the information is included in the packet in the form of a label (ie tag).
- the MAL information format proposed by the present invention may be used together with other existing protocol standards, for example, an IP header, a transmission control protocol (TCP) and a user datagram protocol (UDP) header, and an RTP header protocol.
- the table that summarizes the values of each label value is called a label table (LT). If a call setup process between a transmitting and receiving network such as a broadcasting network is impossible, a method of transmitting LT at periodic time intervals such as Program Map Tables (PMT) of the MPEG-2 system may be used.
- PMT Program Map Tables
- the MAL information may be classified into a media identifier format for class QoS scheme and a label format for stream QoS scheme.
- the media is abstracted based on the requirements for the loss rate and the transmission delay and included in the form of a delimiter without a resource reservation process for providing a service between a transmitter and a receiver.
- the MAL abstracts the QoS class according to the transmission delay and loss requirements of each stream. Format determines the media separator value.
- the audio stream may be of higher importance than the video stream.
- the media identifier value at this time may be inserted into a TOS (Type Of Service) field of the IPv4 header or a TC (Traffic Class) field of the IPv6 header.
- TOS Type Of Service
- TC Traffic Class
- the base layer must be of high importance for the three layers (base layer, advanced 1 layer, and advanced 2 layer), and priority arrival must be guaranteed over other layers. Therefore, the QoS class is assigned with low transmission delay and packet loss.
- the high layer 1 and the high layer 2 each allocate a lower class of QoS than the base layer. As shown in the above example, if the size of the media identifier is set to 2 bits, the QoS class is differentiated into 11 for the base layer, 10 for the high level 1 layer, and 01 for the high level 2 layer.
- resource reservation is made for each stream and for this purpose, label information is included in the corresponding flow.
- label information is included in the corresponding flow. For example, assuming that a resource of 300 kbps is reserved for a flow having a label value of 1, a label value generated in a sender and included in a packet is 1, and the network entity checks a label value included in the packet.
- the flow is transmitted using a resource of 300kbps corresponding to the label value 1 using the LT received in the call setup process and the label value of the packet.
- the resources currently available may also be considered.
- the resource reservation may be made for each session. That is, label information may be configured in stream units or session units according to whether a resource reservation is made in a stream unit or a session unit to support label switching when establishing a call between a transmission and reception network.
- the resource reservation process and label information setting may be promised in advance in a call setup process between a transmitter and a receiver.
- the label format of the present invention may be configured to be compatible with the label format supported by the MPLS.
- the existing NAL header defined in the SVC may not be transmitted.
- the information that does not change during one session among the contents of the existing RTP header and the UDP header may be included in the label.
- the label switching is a technique for routing a third (3 rd ) layer packet in the second (2 nd ) layer, and by applying a separate label to a data packet instead of an IP address to implement switching using the added label. This is how switching is possible.
- FIG. 4 is a diagram illustrating a method of including MAL information in an IP packet according to an embodiment of the present invention.
- a virtual header for an MAL packet is defined.
- Content included in the virtual header is to be included in a packet header (for example, an IP packet header) of a lower layer, and the virtual header 420 is internally divided into a media identifier header 421 and a label header 422. .
- the media identifier header 421 may be applied when a lower layer uses a QoS scheme for each class, and its length may vary according to system configuration. In consideration of compatibility with the QoS protocol of each lower layer, about 3 to 6 bits are preferable.
- the media identifier header 421 may be inserted into the TOS field 411 of the IPv4 header 410 or inserted into the TC field 431 of the IPv6 header 430.
- the label header 422 may be applied when the lower layer uses a flow-based QoS scheme.
- a total of 8 bits of the label header 422 is composed of 7 bits including the number of the label and 1 bit of the extension flag bit for extension if necessary.
- the label header 422 may be inserted into an extended IP header 413 of the IPv4 header 410 or inserted into a flow label field 433 of the IPv6 header 430.
- FIG. 5 is a diagram for explaining a structure of an IP packet header including MAL information according to an embodiment of the present invention.
- FIG. 5 illustrates a method of simplifying a header by removing an identically repeated portion of a UDP header and an RTP header among a plurality of packets to be applied to a real time media stream, and including this information in the LT.
- Reference numerals 510, 530, and 540 denote IPv4 packets
- reference numeral 550 denotes IPv6 packets
- an example of generating label information by simplifying a UDP header and an RTP header in each packet denoted.
- Reference numeral 510 denotes a media packet for the transmission of real-time media data, such as an on-demand video service.
- Reference numeral 560 denotes a UDP header and reference numeral 570 denotes an RTP header.
- the field to be noted is the NALH field at 520, which represents a NAL header, and as described in FIG. 2, the NAL header includes information indicating the importance or priority of the packet.
- fields 511, 512, 514, 515, 518, 519, and 520 that are identically repeated in the UDP header 560 and the RTP header 570 of the reference number 520 packet are gathered into one label.
- Fields 513, 516, 517, inserted into information (flow label field) 531, which can vary from packet to packet, are arranged behind the flow label field 531.
- the Length field 532 overlaps with a Length field (not shown) included in the IP header. Therefore, the Length field 532 can be omitted.
- the TS field 534 is a time stamp, and if the generation of media data is periodic, the time stamp information can be known by calculation at the receiving side, and thus can be omitted.
- the reference numeral 540 packet indicates that the duplicated Length field 532 and the TS field 534 that can be calculated by the receiving side are omitted from the reference number 530 packet.
- the reference number 550 packet illustrates an IPv6 packet.
- IPv6 header 551 there is a 24-bit flow label field. By using this field, the MAL information of the present invention can be included in the IPv6 header. .
- the receiving side should parse all the fields.
- the header is simplified as shown in FIG. 5, the fields corresponding to the flow labels do not need to be parsed every time.
- the MAL information defined in the present invention has been described so far. Using such MAL information, it is possible to provide a service that guarantees QoS by class and QoS by flow using abstracted importance or priority without understanding media stream.
- a network entity that understands media importance or priority information and performs forwarding using the media is called a media aware network element (MANE).
- a network entity that forwards a received media packet such as a router, a media access control (MAC) layer of IEEE 802 series, and a broadcast multicast service center (BMSC) of 3GPP, may be included in the MAL information. It can operate as a MANE (Media Aware Network Element) that can be adaptively forwarded according to the importance of the packet according to the included media identifier information. For example, in a router using a DiffServ (Differentiated Service) routing method, if a data exceeds the buffer, the low priority packet is discarded. To this end, the media identifier value of the MAL information is checked.
- DiffServ Differentiated Service
- the network entity adaptively processes a packet using importance information included in an IP header, that is, a media identifier value, regardless of which service the received packet belongs to. For example, if a media delimiter value of an audio packet is 11, a base layer video packet media delimiter value is 10, a media delimiter value of an advanced 1 layer video packet is 01, and a media delimiter value of an advanced 2 layer video packet is 00.
- the network entity needs to discard any one of the packets due to network condition or overflow of the router buffer, the network entity discards the packet according to the media identifier value.
- packets are discarded in the order of the high layer 2 video packet, the high layer 1 video packet, the base layer video packet, and finally the audio packet.
- a packet is put in a queue determined according to importance information written in an IP header. Normally, priority is set in four steps, and there may be a difference in the method of handling the packet loss and the speed of the packet leaving the queue for each queue.
- a label value which is a media identifier
- QoS bit rate, loss rate, delay, etc.
- the determination of the predetermined resource may be determined according to a resource corresponding to the corresponding label by searching a resource reservation table stored in advance for each stream in the corresponding network entity. For example, if the QoS for the audio stream is set to Unsolicited Guaranteed Service (UGS) in IEEE 802.16, a predetermined QoS requirement is guaranteed accordingly. Therefore, the resource reservation table is stored in the network entity until the corresponding service ends. That is, when a packet is received from the transmitter, the label of the packet is checked, the QoS requirement of the stream of the label is searched in the resource reservation table, and a service is provided according to the resource accordingly.
- UMS Unsolicited Guaranteed Service
- FIG. 6 is a diagram illustrating a configuration of a MANE 600 according to an embodiment of the present invention.
- the forwarding policy determination unit 609 of the MANE 600 receives a packet from the transmitter 606, the packet is adaptively forwarded according to the forwarding policy (610).
- the forwarding policy depends on the media identifier value included in the MAL information of the received packet.
- the MANE 600 When the MANE 600 supports QoS for each service class, the MANE 600 checks the class of the media identifier value of the corresponding packet and determines whether to forward the corresponding packet accordingly. On the other hand, if the MANE 600 supports QoS per flow (i.e., stream), the label value is checked, and the resource allocated to the corresponding label stored in the resource reservation table 602 is checked (query-605). In operation 610, the server determines the available resource information of the available resource determination unit 604 (query-608, receives the inquiry result-607), and determines a forwarding policy in the available resources to forward the packet (610). .
- QoS per flow i.e., stream
- the server determines the available resource information of the available resource determination unit 604 (query-608, receives the inquiry result-607), and determines a forwarding policy in the available resources to forward the packet (610).
- FIG. 7 is a diagram illustrating a configuration of a receiving apparatus 700 according to an embodiment of the present invention.
- the receiving device 700 illustrated by FIG. 7 may be, for example, a user equipment.
- the reception apparatus 700 includes a decoder 704 for each stream, a receiver 702 for receiving a signal, and a controller 706 for controlling the decoder 704. .
- the decoder 704 may include as many buffers (not shown) as necessary.
- the controller 706 may check the label and identify the decoder 704 suitable for the packet. In addition, if the packet received by the receiver 702 does not have a label, the controller 706 may check the decoder 704 for decoding the media packet by reading a TCP or UDP header.
- FIGS. 3 to 7 the flow chart of the configuration, operation or signal illustrated in FIGS. 3 to 7 is not intended to limit the scope of the present invention. That is, the configurations and operations described with reference to FIGS. 3 to 7 merely illustrate configurations that operate in the apparatus, and do not necessarily limit the implementation to be performed by all the processes or to be performed separately.
- the above-described operations can be realized by providing a memory device storing the corresponding program code to any component in a network entity device such as the transmitting device 300, the receiving device 700, or the MANE 600. That is, components of a network entity device such as the transmitting device 300, the receiving device 700, or the MANE 600 may be implemented by a processor or a central processing unit (CPU) that reads and executes program codes stored in the memory device. .
- a processor or a central processing unit (CPU) that reads and executes program codes stored in the memory device.
Abstract
Description
Claims (28)
- 멀티미디어 데이터 패킷의 송신 방법에 있어서,전송할 멀티미디어 데이터에 관한 정보를 추상화하는 미디어 추상화 계층(MAL) 정보를 생성하는 과정과,상기 MAL 정보를 포함하는 멀티미디어 데이터 패킷을 생성하는 과정과,상기 멀티미디어 데이터 패킷을 네트워크 엔터티로 송신하는 과정을 포함하는 멀티미디어 데이터 패킷의 송신 방법.
- 제1항에 있어서,상기 MAL 정보는 미디어 구분자 정보를 포함하며,상기 미디어 구분자 정보는 클래스 별 QoS(Quality of Service) 방식의 경우, 상기 멀티미디어 데이터 패킷의 중요도를 나타내는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 방법.
- 제2항에 있어서,상기 미디어 구분자 정보는 IPv4 패킷 헤더의 TOS(Type Of Service) 필드 및 IPv6 패킷 헤더의 TC(Traffic Class) 필드 중 어느 하나에 포함되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 방법.
- 제1항에 있어서,상기 MAL 정보는 라벨 정보를 포함하며,상기 라벨 정보는 스트림 별 QoS(Quality of Service) 방식의 경우, 해당 스트림의 자원 예약을 나타내는 미리 결정된 라벨 값을 포함하는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 방법.
- 제4항에 있어서,상기 라벨 정보는 IPv4 패킷 헤더의 확장 필드 및 IPv6 패킷 헤더의 TC 필드 중 어느 하나에 포함되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 방법.
- 제1항에 있어서,상기 MAL 정보는 라벨 정보를 포함하며,상기 라벨 정보는 상기 멀티 미디어 데이터 패킷에서 UDP 헤더 및 RTP 헤더에서 동일하게 반복되는 부분을 플로우 라벨로 치환하여 생성되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 방법.
- 네트워크 상의 엔터티가 멀티미디어 데이터 패킷을 포워딩(forwarding)하는 방법에 있어서,송신 장치로부터 멀티미디어 데이터에 관한 정보를 추상화하는 미디어 추상화 계층(MAL) 정보를 포함하는 멀티미디어 데이터 패킷을 수신하는 과정과,상기 수신한 MAL 정보에 따라 상기 멀티미디어 데이터 패킷을 포워딩하는 과정을 포함하는 멀티미디어 데이터 패킷의 포워딩 방법.
- 제7항에 있어서,상기 MAL 정보는 미디어 구분자 정보를 포함하며,상기 미디어 구분자 정보는 클래스 별 QoS(Quality of Service) 방식의 경우, 상기 멀티미디어 데이터 패킷의 중요도를 나타내는 것을 특징으로 하는 멀티미디어 데이터 패킷의 포워딩 방법.
- 제8항에 있어서,상기 멀티미디어 데이터 패킷을 포워딩하는 과정은,상기 미디어 구분자 정보에 포함된 미디어 구분자 값에 대응하는 상기 멀티미디어 데이터 패킷의 중요도에 따라 상기 멀티미디어 데이터 패킷을 포워딩하는 것을 특징으로 하는 멀티미디어 데이터 패킷의 포워딩 방법.
- 제9항에 있어서,상기 미디어 구분자 정보는, IPv4 패킷 헤더의 TOS(Type Of Service) 필드 및 IPv6 패킷 헤더의 TC(Traffic Class) 필드 중 어느 하나에 포함되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 포워딩 방법.
- 제7항에 있어서,상기 MAL 정보는 라벨 정보를 포함하며,상기 라벨 정보는 스트림 별 QoS(Quality of Service)방식의 경우, 해당 스트림의 자원 예약을 나타내는 미리 결정된 라벨 값을 포함하는 것을 특징으로 하는 멀티미디어 데이터 패킷의 포워딩 방법.
- 제11항에 있어서,상기 멀티미디어 데이터 패킷을 포워딩하는 과정은,상기 라벨 값에 대응하여 미리 예약된 자원을 고려하여 상기 멀티미디어 데이터 패킷을 포워딩하는 것을 특징으로 하는 멀티미디어 데이터 패킷의 포워딩 방법.
- 제12항에 있어서,상기 라벨 정보는 IPv4 패킷 헤더의 확장 필드 및 IPv6 패킷 헤더의 TC 필드 중 어느 하나에 포함되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 포워딩 방법.
- 제11항에 있어서,상기 라벨 정보는 상기 멀티미디어 데이터 패킷에서 UDP 헤더 및 RTP 헤더에서 동일하게 반복되는 부분을 플로우 라벨로 치환하여 생성되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 포워딩 방법.
- 멀티미디어 데이터 패킷의 송신 장치에 있어서,전송할 멀티미디어 데이터에 관한 정보를 추상화하는 미디어 추상화 계층(MAL) 정보를 생성하는 미디어 추상화 계층부와,상기 MAL 정보를 포함하는 멀티미디어 데이터 패킷을 생성하고, 생성된 멀티미디어 데이터 패킷을 네트워크 엔터티로 송신하는 패킷 생성부를 포함하는 멀티미디어 데이터 패킷의 송신 장치.
- 제15항에 있어서,상기 MAL 정보는 미디어 구분자 정보를 포함하며,상기 미디어 구분자 정보는 클래스 별 QoS(Quality of Service) 방식의 경우, 상기 멀티미디어 데이터 패킷의 중요도를 나타내는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 장치.
- 제16항에 있어서,상기 미디어 구분자 정보는 IPv4 패킷 헤더의 TOS(Type Of Service) 필드 및 IPv6 패킷 헤더의 TC(Traffic Class) 필드 중 어느 하나에 포함되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 장치.
- 제15항에 있어서,상기 MAL 정보는 라벨 정보를 포함하며,상기 라벨 정보는 스트림 별 QoS(Quality of Service) 방식의 경우, 해당 스트림의 자원 예약을 나타내는 미리 결정된 라벨 값을 포함하는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 장치.
- 제18항에 있어서,상기 라벨 정보는 IPv4 패킷 헤더의 확장 필드 및 IPv6 패킷 헤더의 TC 필드 중 어느 하나에 포함되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 장치.
- 제15항에 있어서,상기 MAL 정보는 라벨 정보를 포함하며,상기 라벨 정보는 상기 멀티 미디어 데이터 패킷에서 UDP 헤더 및 RTP 헤더에서 동일하게 반복되는 부분을 플로우 라벨로 치환하여 생성되는 것을 특징으로 하는 멀티미디어 데이터 패킷의 송신 장치.
- 멀티미디어 데이터 패킷을 포워딩(forwarding)하는 네트워크 엔터티 장치에 있어서,송신 장치로부터 멀티미디어 데이터에 관한 정보를 추상화하는 미디어 추상화 계층(MAL) 정보를 포함하는 멀티미디어 데이터 패킷을 수신하고, 상기 수신한 MAL 정보에 따라 상기 멀티미디어 데이터 패킷을 포워딩하는 포워딩 정책 결정부를 포함하는 네트워크 엔터티 장치.
- 제21항에 있어서,상기 MAL 정보는 미디어 구분자 정보를 포함하며,상기 미디어 구분자 정보는 클래스 별 QoS(Quality of Service) 방식의 경우, 상기 멀티미디어 데이터 패킷의 중요도를 나타내는 미리 결정된 라벨 값을 포함하는 것을 특징으로 하는 네트워크 엔터티 장치.
- 제22항에 있어서,상기 포워딩 정책 결정부는 상기 라벨 값에 대응하는 패킷의 중요도에 따라 상기 멀티미디어 패킷을 포워딩하는 것을 특징으로 하는 네트워크 엔터티 장치.
- 제23항에 있어서,상기 미디어 구분자 정보는,IPv4 패킷 헤더의 TOS(Type Of Service) 필드 및 IPv6 패킷 헤더의 TC(Traffic Class) 필드 중 어느 하나에 포함되는 것을 특징으로 하는 네트워크 엔터티 장치.
- 제21항에 있어서,상기 MAL 정보는 라벨 정보를 포함하며,상기 라벨 정보는 스트림 별 QoS(Quality of Service) 방식의 경우, 해당 스트림의 자원 예약을 나타내는 미리 결정된 라벨 값을 포함하는 것을 특징으로 하는 네트워크 엔터티 장치.
- 제25항에 있어서,상기 네트워크 엔터티 장치는 상기 라벨 값에 대응하여 미리 예약된 자원에 대한 정보를 포함하는 자연 예약 테이블을 더 포함하며,상기 포워딩 정책 결정부는, 상기 라벨 값에 대응하여 미리 예약된 자원을 고려하여 상기 멀티미디어 데이터 패킷을 포워딩 하는 것을 특징으로 하는 네트워크 엔터티 장치.
- 제26항에 있어서,상기 라벨 정보는 IPv4 패킷 헤더의 확장 필드 및 IPv6 패킷 헤더의 TC 필드 중 어느 하나에 포함되는 것을 특징으로 하는 네트워크 엔터티 장치.
- 제27항에 있어서,상기 라벨 정보는 상기 멀티미디어 데이터 패킷에서 UDP 헤더 및 RTP 헤더에서 동일하게 반복되는 부분을 플로우 라벨로 치환하여 생성되는 것을 특징으로 하는 네트워크 엔터티 장치.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12736632.6A EP2667624A4 (en) | 2011-01-19 | 2012-01-19 | METHOD AND DEVICE FOR TRANSMITTING A MULTIMEDIA DATA PACKAGE |
JP2013550407A JP2014509473A (ja) | 2011-01-19 | 2012-01-19 | マルチメディアデータパケットを送信する方法及び装置 |
CN201280009606.0A CN103380626B (zh) | 2011-01-19 | 2012-01-19 | 用于发送多媒体数据封包的方法和装置 |
AU2012207717A AU2012207717B2 (en) | 2011-01-19 | 2012-01-19 | Method and apparatus for transmitting a multimedia data packet |
US13/980,520 US9560171B2 (en) | 2011-01-19 | 2012-01-19 | Method and apparatus for transmitting a multimedia data packet |
US14/935,911 US9906631B2 (en) | 2011-01-19 | 2015-11-09 | Method and apparatus for transmitting a multimedia data packet |
US15/888,781 US20180159964A1 (en) | 2011-01-19 | 2018-02-05 | Method and apparatus for transmitting a multimedia data packet |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016060415A1 (ko) * | 2014-10-12 | 2016-04-21 | 엘지전자 주식회사 | Xml 서브타이틀의 트릭 플레이를 위한 방송 신호 송수신 방법 및 장치 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120084202A (ko) * | 2011-01-19 | 2012-07-27 | 삼성전자주식회사 | 멀티미디어 데이터 패킷을 송신하는 방법 및 장치 |
DE102013021157A1 (de) | 2013-12-10 | 2015-06-25 | Unify Gmbh & Co. Kg | Verfahren und Telekommunikationsanordnung zum Übertragen von Mediendaten mit unterschiedlichen Medientypen über ein dienstgütesensitives Netzwerk |
US11134254B2 (en) * | 2014-04-25 | 2021-09-28 | Sony Corporation | Transmission apparatus, transmission method, reception apparatus, and reception method |
KR102380285B1 (ko) | 2015-10-14 | 2022-03-30 | 삼성전자주식회사 | 멀티미디어 시스템에서 패킷을 송/수신하는 방법 및 장치 |
KR102207453B1 (ko) * | 2015-10-30 | 2021-01-25 | 에스케이텔레콤 주식회사 | Mmt 패킷 구성 장치 및 mmt 패킷 구성 방법 |
CN107968768A (zh) * | 2016-10-19 | 2018-04-27 | 中兴通讯股份有限公司 | 媒体流的发送、接收方法及装置、系统、视频中继 |
EP3808041A1 (en) | 2018-06-14 | 2021-04-21 | Nokia Solutions and Networks Oy | Flow-specific fast rerouting of source routed packets |
EP3808042A1 (en) * | 2018-06-14 | 2021-04-21 | Nokia Solutions and Networks Oy | Flexible label value encoding in label switched packet networks |
WO2019239172A1 (en) | 2018-06-14 | 2019-12-19 | Nokia Solutions And Networks Oy | Path compression in routing of source routed packets |
CN110198279B (zh) * | 2019-04-16 | 2022-05-20 | 腾讯科技(深圳)有限公司 | 一种转发媒体包的方法及转发服务器 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6434606B1 (en) * | 1997-10-01 | 2002-08-13 | 3Com Corporation | System for real time communication buffer management |
US6449255B1 (en) * | 1999-04-26 | 2002-09-10 | Cisco Technology, Inc. | Method and apparatus for managing packets using a real-time feedback signal |
US6775280B1 (en) * | 1999-04-29 | 2004-08-10 | Cisco Technology, Inc. | Methods and apparatus for routing packets using policy and network efficiency information |
US7383320B1 (en) * | 1999-11-05 | 2008-06-03 | Idom Technologies, Incorporated | Method and apparatus for automatically updating website content |
JP2002141945A (ja) * | 2000-11-06 | 2002-05-17 | Sony Corp | データ送信装置、およびデータ送信方法、並びにプログラム記憶媒体 |
GB0027071D0 (en) * | 2000-11-06 | 2000-12-20 | Nokia Networks Oy | Data transmission |
US7295532B2 (en) * | 2001-08-17 | 2007-11-13 | Ixi Mobile (R & D), Ltd. | System, device and computer readable medium for providing networking services on a mobile device |
US20030069963A1 (en) * | 2001-09-27 | 2003-04-10 | Nikil Jayant | System and method of quality of service signaling between client and server devices |
US20030103459A1 (en) * | 2001-11-16 | 2003-06-05 | Connors Dennis P. | Method and implementation for a flow specific modified selective-repeat ARQ communication system |
US7881658B2 (en) * | 2002-10-10 | 2011-02-01 | Znl Enterprises, Llc | Method and apparatus for entertainment and information services delivered via mobile telecommunication devices |
KR100992002B1 (ko) | 2002-12-04 | 2010-11-04 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 계층화된 미디어 비트스트림의 패킷화 |
US7525994B2 (en) * | 2003-01-30 | 2009-04-28 | Avaya Inc. | Packet data flow identification for multiplexing |
JP2007525889A (ja) * | 2004-02-03 | 2007-09-06 | ノキア コーポレイション | エンドツーエンドQoSを提供する方法及び装置 |
US8259706B2 (en) * | 2006-02-28 | 2012-09-04 | Genband Us Llc | Multistage prioritization of packets within a session over internet protocol (SOIP) network |
US8159980B2 (en) | 2006-10-03 | 2012-04-17 | Nokia Corporation | PS network with CS service enabling functionality |
CN101543018B (zh) * | 2007-01-12 | 2012-12-26 | 庆熙大学校产学协力团 | 网络提取层单元的分组格式、使用该格式的视频编解码算法和装置以及使用该格式进行IPv6标签交换的QoS控制算法和装置 |
US8548261B2 (en) * | 2007-04-11 | 2013-10-01 | Samsung Electronics Co., Ltd. | Method and apparatus for encoding and decoding multi-view image |
KR100912545B1 (ko) * | 2007-09-21 | 2009-08-18 | 한국전자통신연구원 | 패킷 처리 장치 및 방법 |
KR101001024B1 (ko) * | 2007-12-18 | 2010-12-14 | 한국전자통신연구원 | 비디오 멀티캐스팅 서비스에서 정보 보안 유지 방법 및장치 |
JP4591503B2 (ja) * | 2007-12-26 | 2010-12-01 | 日産自動車株式会社 | 空気圧監視装置 |
US20090190471A1 (en) * | 2008-01-10 | 2009-07-30 | Mahendran Arungundram C | Method and Apparatus for Optimized Session Setup with Network-Initiated QoS Policy Control |
US20110085551A1 (en) * | 2008-06-17 | 2011-04-14 | Avinash Sridhar | Staggercasting method and apparatus using type of service (tos) information |
WO2009154656A1 (en) | 2008-06-17 | 2009-12-23 | Thomson Licensing | Network abstraction layer (nal)-aware multiplexer with feedback |
WO2010142335A1 (en) * | 2009-06-10 | 2010-12-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Performance monitoring in a communication network |
EP2509359A4 (en) * | 2009-12-01 | 2014-03-05 | Samsung Electronics Co Ltd | METHOD AND APPARATUS FOR TRANSMITTING A MULTIMEDIA DATA PACKET USING LAYER OPTIMIZATION |
US9615056B2 (en) * | 2010-02-10 | 2017-04-04 | Oovoo, Llc | System and method for video communication on mobile devices |
KR101744355B1 (ko) * | 2011-01-19 | 2017-06-08 | 삼성전자주식회사 | 상호 계층 최적화를 이용한 멀티미디어 데이터 패킷을 송신하는 방법 및 장치 |
KR20120084202A (ko) * | 2011-01-19 | 2012-07-27 | 삼성전자주식회사 | 멀티미디어 데이터 패킷을 송신하는 방법 및 장치 |
KR20140092935A (ko) * | 2011-08-18 | 2014-07-24 | 브이아이디 스케일, 인크. | 패킷 차등화를 위한 방법 및 시스템 |
-
2011
- 2011-01-19 KR KR1020110005606A patent/KR20120084202A/ko not_active Application Discontinuation
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2012
- 2012-01-19 AU AU2012207717A patent/AU2012207717B2/en active Active
- 2012-01-19 CN CN201280009606.0A patent/CN103380626B/zh active Active
- 2012-01-19 EP EP12736632.6A patent/EP2667624A4/en not_active Withdrawn
- 2012-01-19 JP JP2013550407A patent/JP2014509473A/ja active Pending
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2015
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2017
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-
2018
- 2018-02-05 US US15/888,781 patent/US20180159964A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
None |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016060415A1 (ko) * | 2014-10-12 | 2016-04-21 | 엘지전자 주식회사 | Xml 서브타이틀의 트릭 플레이를 위한 방송 신호 송수신 방법 및 장치 |
Also Published As
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JP2014509473A (ja) | 2014-04-17 |
KR20120084202A (ko) | 2012-07-27 |
CN103380626B (zh) | 2018-02-23 |
EP2667624A2 (en) | 2013-11-27 |
JP6353120B2 (ja) | 2018-07-04 |
AU2012207717A2 (en) | 2013-09-12 |
EP2667624A4 (en) | 2014-10-08 |
CN103380626A (zh) | 2013-10-30 |
US20160065643A1 (en) | 2016-03-03 |
WO2012099421A3 (ko) | 2012-12-06 |
AU2012207717A1 (en) | 2013-08-22 |
US20130301656A1 (en) | 2013-11-14 |
US9906631B2 (en) | 2018-02-27 |
US9560171B2 (en) | 2017-01-31 |
AU2012207717B2 (en) | 2016-06-23 |
JP2017158208A (ja) | 2017-09-07 |
US20180159964A1 (en) | 2018-06-07 |
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