Call for Topics for York meeting September 2013 – Summary of Consensus Items list

• √ RF Bandwidth (RF Spectrum) *

• √ FDD Downstream is OFDM/OFDMA

• Bonding approach for downstream

• Rate adaptation, which layer and how

• PHY sub-Task Force

– Physical Layer processing path

• Data path

• PHY Link path

– FEC / Interleaving (error performance) (requires: channel model)

• Interleaver specification

• √ FEC LDPC Codes for Active Plant

• FEC LDPC Codes for Passive Plant

– Fidelity requirements

• Spurious Emissions

– Downstream CLT transmitter data detection specification to support TDD bursting

– Downstream Continuous Pilots

– Tables for Electrical Input / Output requirements at CLT and CNU

• MPCP Changes

• Adaptive Bit Rate Loading

• PHY Link *

– √ PHY Link FEC LDPC Codes

– √ PLC Preamble

– PLC Content / Messaging / “mini-MAC operation”

• Channel identification

• Sub-carrier identification, - index?

– Multiple PLC issues

– PHY Ranging / timestamp

– PHY Time to Register

• Complexity of hardware scaling with “bandwidth”

• √ How we are going to do TDD

– √ TDD Guard Time / Time Windows

• Coding Efficiency gains vs cost

• Synchronization in terms of time / frequency (mobile backhaul

• OFDM Numerology / FFT Size / Symbol Size / CP size (requires: channel model) / Definitions / Channels

– √ OFDM Numerology (first pass)

– Symbol definition

– Cyclic suffix (related to window) definition

– Number of OFDM channels

• Framing / Burst Marker Structure

• MAC layer efficiency

• PHY layer efficiency

• Energy Efficiency

• Subcarrier group / Resource Block

• √ Exclusions

• Pilots

• Sublayer interfaces

• MIB (see Howard)

Notes:

· √ denotes reasonably completed items

· Items in red are Call For Focus for the next meeting

· * denotes an ad hoc committee is working on this

Updated: 25 July 2013