5G Spectrum and Standards (Mobile Communications) by Geoff Varrall

Author:Geoff Varrall [Varrall, Geoff]
Language: eng
Format: azw3, mobi, pdf
Publisher: Artech House
Published: 2016-05-31T16:00:00+00:00

Figure 6.8 Avion Electronics DRM medium-wave, short-wave, and FM radio.

There are 15 language description codes and 31 program codes including safety-critical information. Data services can be either synchronous or asynchronous. DRM networks can be deployed as single frequency (SFN) of multiple frequency (MFN). Table 6.5 provides a comparison of DRM symbol length and guard band and relative range available from DRM compared to DAB, DVB-T, and LTE.

6.21DAB for Middle Earth

DAB suffers the same perception problem as DRM and, as far as this author knows, has not yet featured in any 5G technical discussions. As with DRM, there are potential positive technical and commercial touch-points with 5G that merit at least a brief summary.

The initial DAB standard [45] was produced in 1995 covering audio and data services. T-DMB was added in 2006 to address mobile TV and enhanced data streaming with a new codec introduced in 2007 (DAB+). In most countries it is deployable into the VHF TV band, Band 3 from 174 to 230 MHz (240 MHz in some countries). In Australia, a country with very large areas to cover, DAB and TV are multiplexed together.

Table 6.5

Symbol Duration and Guard Interval

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.