This strategy divided a bit data of frame image into three transmission packet, called N1,N2,N3, shown in Figure 2.It will rearrange the encoded data ,arrange same types of data in together. N1 packet contains important data, for example information of head image, type of macro block, motion vector and so on. N2 packet contains information of intra-frame block coding method and all intra-frame coding. N3 contains information of inter-frame block coding method and all inter-frame coding.