ISDB-TSB
Technology Overview
ISDB-Tsb is the terrestrial digital sound broadcasting specification. The technical specification is very similar to the ISDB-T specification, with the exception that ISDB-Tsb uses a form of narrowband transmission with one and three segments.
ISDB-Tsb − Integrated Services Digital Broadcasting TErrestrial Sound Broadcasting − is based on the digital ISDB-T TV standard utilized in Japan, and it therefore uses parts of this technology for digital sound broadcasting and additional data services.
ISDB-T normally uses coded orthogonal frequency division multiplexing (COFDM) with the 2K, 4K and 8K FFT modes. The HF signal has a bandwidth of 6 MHz and consists of 13 segments in ISDB-T, while ISDB-Tsb uses only three of the segments.
Owing to this segment concept, wideband and narrowband transmission can be implemented. ISDB-T is used in Japan.
Deployment Scenario
As of this document’s publication date, ISDB-Tsb is used in Japan and it represents the digitization of AM and FM in sound broadcasting.
Key Parameters
| ISDB-TSB | |
|---|---|
| Modulation | DQPSK, QPSK, 16QAM, 64QAM |
| Data Rate | 330 kbit/s = 1 segment |
| Audio Source Coding | MPEG-2 AAC |
Standardization
ISDB-Tsb is based on the ARIB STD-B29 and ITU-R BS.1114 standards
