Work item:
G.984.3 (2014) Amd.2
Subject/title:
Gigabit-capable passive optical networks (G-PON): Transmission convergence layer specification - Amendment 2
Status:
Consented on 2025年10月24日
Type of work item:
Recommendation
Version:
New
Equivalent number:
-
Timing:
2025-10 (Medium priority)
Liaison:
-
Supporting members:
-
Summary:
Recommendation ITU-T G.984.3 describes the transmission convergence layer for gigabit-capable passive optical networks – a family of flexible access networks capable of providing a range of broadband and narrow-band services, operating at the rates of 2.48832 Gbit/s downstream and 1.24416 or 2.48832 Gbit/s upstream. This Recommendation includes the specifications of the following:
• gigabit PON transmission convergence (GTC) layer framing;
• upstream time division multiple access mechanism;
• physical layer operation, administration and maintenance (OAM) messaging channel;
• principles and signalling mechanism of the upstream dynamic bandwidth assignment;
• optical network unit (ONU) activation method;
• forward error correction;
• security.
This Recommendation forms an integral part of the G.984-series of ITU-T Recommendations that, together, specify a single coherent set of access transmission systems.
Amendment 1 provides necessary extensions to support Class D ODN. Amendment 2 implements the TC layer consistency updates across the ITU-T PON specifications including Deactivation Reason Codes and Forgotten ONU timer.
Comment:
-
Historic references: