Mission Statement:
The Physical Layer Transmission Work Area provides test plans, technical documentation, and marketing papers to enable multi-vendor interoperability in deployments for both access and in-premises networks. Work Area Directors: Herman Verbueken, Nokia Evan Sun, Huawei
Business Impact:
The focus of the PHYtx WA is to develop technical recommendations which will help service providers deploy equipment that will give a better quality of experience for their end users.
Standardized interoperability and certification, create a trusted base of equipment and services providing operators with an accelerated time to market, avoiding large investments in time and customizations. Interoperability provides invaluable intelligence as feedback to both developers and implementers of new products and services.
Scope:
- Definition of test plans for access network physical layer transmission technologies (such as VDSL2 and Gfast) and Reverse Power Feeding technologies
- Definition of test plans for in-premises network physical layer transmission technologies such as power line communications
- Creation of best practice or use cases documentation for advanced features, such as Fiber extensions, cable models.
Project Stream Description PS Leaders Projects that don’t fit under the scope of an existing Project Stream or if they fit under the scope of more than one Project Stream, are developed under the Non-PS Assigned category. Herman Verbueken , Nokia FANCE (Fiber Access Network Copper Extensions) Evan Sun, Huawei Frank Van der Putten, NokiaActive Project Streams
Development of technical documentation for the deployment of copper transmission technologies that extend fiber networks to end-users using existing copper infrastructure at the premises. Technologies covered include but are not limited to Gfast, G.hn and MoCA. Development of test plans and related technical documentation for certification and performance testing of ITU-T G.fast and its associated reverse power feeding. This work may be leveraged within certification programs operated by the Broadband Forum.
Physical Layer Transmission Work Area Email Lists
- phytx@broadband-forum.org: PHYtx meeting notification, agendas, discussion, etc.
- Join or Leave BBF Groups and Email Lists
- Go to your JIRA profile page to see all of your current BBF group memberships.
PHYtx Calls, Minutes, Agendas
- PHYtx - Calendar
- PHYtx - Meeting Reports
- All Broadband Forum Teleconference Meetings
See also:
Active Non-PS assigned Projects
WT/MD/SD# Projects Abstract Related Contributions Editors none n/a n/a n/a n/a
Active FANCE Projects
WT/MD/SD# FANCE Projects Abstract Related Contributions Editors WT-476 Performance Test Plan for use of G.hn technology in access scenarios The goal is to provide performance requirements between a G.hn Aggregation Multiplexer (GAM) and one or more G.hn Network Terminations (GNTs). The focus is on the device level (DLL and PHY) testing, similar to how TR-380 is defined. This performance test plan will include test setup information, equipment configuration requirements, test procedures, and performance requirements for each test case. WT-476
This document is intended to provide a certification test plan for ITU‑T Recommendation G.9700 “Fast access to subscriber terminals (G.fast) – Power spectral density specification” and G.9701 “Fast access to subscriber terminals (G.fast) – Physical layer specification”. This IR-337 is specifically conceived for the basic interoperability objectives of the Broadband Forum G.fast Certification Program. Technical content in this test plan includes test setup information, equipment configuration requirements, test procedures, and pass/fail requirements for each test case. Issue 4 intends to add Robust Management Channel Recovery (RMCR) and sub-carrier masking tests, tests for Low power operation and tests for accuracy and updating of reported G.fast parameters. With short copper loops required by G.fast Distribution Point Units (DPUs) that push the deployment of the DPU/MDUs closer to the customer premise, local power and forward power may not be viable to cost or location. To power the DPU, power will come from the customer premises location over the copper pair; this is referred to as Reverse Power Feed (RPF). This document specifies tests for the RPF functions of a DPU and the customer premises’ Power Supply Equipment (PSE) either as a stand-alone device or as a function integrated in a G.fast Network Termination. Issue 3 will define a set of RPF-over-coax functional and safety test cases for the Power Source Equipment (PSE) implemented according to ETSI specification TS 101 548-2, either as a stand-alone device or as a function integrated in the G.fast (G.9700 and G.9701) network termination, and reversely powered DPU implementations. It will include also RPF integrated in G.hn Access and MoCA Access network termination.Active Gfast and RPF Projects
WT/MD/SD# Bonding Projects Abstract Related Contributions Editors G.fast Certification Test Plan DTP-337 OD-335 G.fast Interop Plugfest Test Plan Interoperability among multiple chipsets and systems will be critical to the success of G.fast. This document defines a suite of basic physical layer tests for G.fast. The intent is to provide a structure for vendor-to-vendor interoperability tests, known as "Plugfests". OD-335 WT-338i3 Reverse Power Feed (RPF) Test Plan WT-338
Completed or Inactive Project Streams
- These can be found on the PHYtx - Archived Project Streams and Projects page