| 摘要 |
FIELD: communications. ^ SUBSTANCE: in a wireless hierarchic broadband transmission, preferably based on DVB-T, one signal can transmit two traffic streams: low priority stream (LP) and high priority stream (HP), and both of them should be identified by their corresponding transport-stream-id. A single bit flag is added to a specific descriptor of broadband transmission to indicate the hierarch of the traffic stream, the information of which is provided by the descriptor. By using this priority indicator or priority flag, the receiver can receive, in accordance with the hierarch of each traffic stream, the broadband transmission information declared at the control. ^ EFFECT: provision for intrinsic traffic streams with a priority hierarchy. ^ 48 cl, 6 dwg, 3 tbl |
