Support of coexistence with other broadcast technology in the same radio channel by TDM (for “soft refarming” and regulatory requirements)

[jordijoangimenez]

Problem description

State-of-the-art broadcast standards such as ATSC 3.0 and DVB-T2 support features to allow the possibility to insert different waveforms within the same RF channel. For instance, ATSC 3.0 introduces the concept of the *bootstrap signal" that allows introducing "gaps" in the time domain transmission to be used by future extensions of the standard. DVB-T2 introduces a similar mechanism for the introduction of "future extension frames". With such mechanisms, different transmission standards can be multiplexed in the time domain (TDM) within the same RF channel.
This solution is considered relevant in order to allow for the soft introduction of new standards without disrupting the transmission of current ones, also meeting several regulatory requirements.

Suggested solution description

Incorporation of TDM techniques in order to enable the multiplexing of 5G Broadcast alongside other broadcast standards sharing the same RF channel.

[jordijoangimenez]

If 3GPP approves a WI dealing with this, it can be referenced in the ETSI document (for information).