1905.1 Standard for a Convergent
Digital Home Network for
Heterogeneous Technologies
Zhimeng Du
12/5/2013
Catalog
Background
Architecture
Some details
Features
Summary of Benefits
Background
• Multiple connectivity technologies are needed due
to the wide variety of applications, regions,
environments and topologies.
• Each of these different technologies has a unique
interface to higher layer entities.
• Software and hardware design complexities in
multi-connectivity devices.
Goal
Higher Layer
IEEE
1905.1 Hybrid Technology
MAC/PHY
802.11
MAC/PHY
1901
MAC/PHY
802.3
MAC/PHY
MoCA
• Provide a common interface to widely deployed
home networking technologies.
Architecture
HLE – Higher Layer Entity
ALME - Abstraction Layer Management Entity
SAP – Service Access Point
SME – Station Management Entity
1905.1 MAC Addressing
•
•
Between 1905.1 Devices, MAC Service Data Units (MSDU) and CTRL Message
Data Units (CMDU) are sent over the 1905.1 network using 1905.1 AL MAC
Address as DA.
Underlying interfaces may communicate using their generic MAC addresses
for control purposes.
Protocol Stack
MSDU - MAC Service Data Unit
AL – Abstraction Layer
ALME - Abstraction Layer Management Entity
SME – Station Management Entity
Data Transfer and Forwarding
SAP – Service Access Point
Features
• Topology discovery: query(unicast),
response(unicast), notification(relayed multicast)
• Security setup: push button configuration, user
configured passphrase/key, near-field
communication network key
• Access point auto-configuration: The AP
autoconfiguration process uses CMDUs to convey
IEEE 802.11 parameters from a registrar to an AP
enrollee to set up the initial configuration or renew
an existing configuration of an IEEE 802.11 interface.
Main Use Cases
• Multipath delivery
IEEE 1901
• Range Extension
IEEE 802.11x
IEEE 802.11x
IEEE 1901
IEEE 802.11x
Summary of Benefits
• Ease of Use: Use common setup procedures for adding
devices to a network, establishing secure links, implementing
QoS, and managing the network.
• Fallback: When a link goes down temporarily or is congested,
an alternative route is available.
• Aggregated Throughput: Use multiple interfaces for maximizing
throughput.
• Multiple Simultaneous Streams: With applications such as
interactive TV, even a single person may be watching multiple
streams simultaneously.
Summary of Benefits
•
Load Balancing: Intelligently distribute multiple video streams over
different paths to limit congestion and maintain reliability.
•
QoS: Uniformed Prioritized QoS over multiple technologies.
•
Security: 1905.1 allows devices to be configured the same way
with a simple button push, for example.
•
Advanced Diagnostics: The overall network monitors itself.
•
Mobility: Wireless connectivity supports mobile handsets, and
tablets.
•
Universal Connectivity: Can connect to the hybrid network from
every room in the house without having to be aware of which
part of the network their device is currently interfacing.
……
Thanks
Q&A