公开(公告)号：US20150131455A1

公开(公告)日：2015-05-14

申请号：US14415437

申请日：2013-07-19

Applicant: ELECTRONICS AND TELECOMMNICATIONS RESEARCH INTITUTE

Inventor： Seong Jun Bae ,  Hyun Woo Lee ,  Won Ryu

IPC: H04L12/939 ,  H04N19/66 ,  H04L29/06 ,  H04L1/20

CPC classification number: H04L49/552 ,  H04L1/201 ,  H04L69/22 ,  H04N19/66 ,  H04N19/89 ,  H04N21/236 ,  H04N21/4385

Abstract: A method and an apparatus for selectively performing packet error classification of multiple packet streams multiplexed to the same are provided. According to the method, generating an MMT packet can include: encapsulating an AU provided from a media codec layer to generate an MPU; and packetizing the generated MPU to generate the MMT packet. The MMT packet can include a packet header including a substream sequence number. Multiple substreams can be multiplexed and transmitted to a single port, and it is possible to detect, if a packet loss occurs, to which substream the lost packet belongs. Furthermore, based on this, an automatic repeat request (ARQ) can be made differently for each subframe and an error control policy can be taken differently for each subframe.

Abstract translation: 提供了一种用于选择性地执行复用到其的多个分组流的分组错误分类的方法和装置。 根据该方法，生成MMT分组可以包括：封装从媒体编解码器层提供的AU以生成MPU; 并将生成的MPU打包以生成MMT数据包。 MMT分组可以包括包括子流序列号的分组报头。 多个子流可以被复用并发送到单个端口，并且可以检测到丢包发生到丢失分组所属的哪个子流。 此外，基于此，可以对每个子帧进行不同的自动重复请求（ARQ），并且可以对每个子帧采取不同的错误控制策略。