Transport Structure for Integrated Services Digital Broadcasting

Naoki KAWAI  Kouji OHSAKI  Takeshi KIMURA  Seiichi NAMBA  

IEICE TRANSACTIONS on Communications   Vol.E77-B    No.12    pp.1474-1479
Publication Date: 1994/12/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Digital Broadcasting Technology)
digital broadcasting,  ISDB,  packet transmission,  service multiplex,  

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We discuss ISDB (Integrated Services Digital Broadcasting) which has a transport structure to meet the technical requirements such as the flexibility and the extensibility of broadcasting in the future. The basic configuration of the ISDB transmission signal for distribution into various transmission channels is shown. Hybrid multiplexing, which uses common fixed-length packets and structured transmission units called "slots," is introduced to construct a transmission signal for low-cost signal processing in ISDB receivers. We show that a fixed packet length of 40-240 bytes results in high transmission efficiency in a diverse range of service arrangements. Furthermore, we use transmission control methods, which show the relationship between programs and packet IDs, to select the desired program with certainty and ease.