1
Scope
2 References
3 Definitions
4 Abbreviations
5 Conventions
5.1 ONT and ONU
5.2 Relationship between data service
framing method and GEM
5.3 Multiplexing architecture
6 G-PON system architecture
6.1 Network architecture
6.2 Reference configuration
6.3 Scope of connectable OLT and ONU types
6.4 Functional blocks
6.5 Interoperability between G-PON and
B-PON
7 GTC overview
7.1 Overview
7.2 Protocol stack for C/M planes
7.3 Protocol stack for U-Plane
7.4 GTC key functions
7.5 Functions of Sub-layers in GTC
7.6 Traffic flows and QoS
7.7 DBA specifications
8
GTC TC frame
8.1 Downstream frame structure
8.2 Upstream frame structure
8.3 Mapping of traffic into GTC
payloads
8.4 Dynamic bandwidth allocation
signalling and configuration
9
GTC messages
9.1 PLOAM message format
9.2 Control messages
10 Activation method
10.1 Overview
10.2 Activation procedure in the ONU
10.3 Activation procedure in the OLT
10.4 RTD measurement procedure
11 Alarms and performance monitoring
11.1 Alarms
11.2 Performance monitoring
12 Security
12.1 Basic threat model
12.2 Encryption system
12.3 Key exchange and switch-over
13 Forward Error Correction
13.1 Introduction
13.2 Downstream FEC
13.3 Upstream FEC
13.4 ONU activation transmissions
14 OMCI transport mechanism
14.1 OMCI transport schema
14.2 Transport modes
14.3 Datagram encapsulation
14.4 OMCI adapter at the ONU
14.5 OMCI adapter at the management
station
Appendix I –
Transport of user traffic over GEM channels
I.1 Mapping of GEM frames into the GTC payload
I.2 TDM over GEM
Appendix II –
Survivability in GTC-based systems
Appendix III – GEM
header error control decoding
Appendix IV – ONU activation
procedures overview
IV.1 Serial number acquisition during
Serial-Number-state (O4b) – Warm network
IV.2 Power levelling process
IV.3 RTD measurement process
IV.4 POPUP process