1. Session 6 Home Network Quality of Service
Steven Saunders
Director Home Networking Software, CableLabs®
1/2/2019

2. Presentations in Session
Managing QoS over Home Networks
Amol Bhagwat, CableLabs
Prioritized vs. Parameterized QoS on the Home Network
Stephen Palm, Broadcom
Quality of Service for the User (parameters, models, measurement) and Interoperability Issues
Jean-Yves Monfort, ITU-T SG 12 Chairman
Home Gateway for Managing Home Network QoS
Atsunobu Narita, NTT Comware Corporation
1/2/2019

3. Highlights from Presentation 1 “Managing QoS over Home Networks”
How can QoS sessions be enabled between 2 devices on a HN?
 IP based application priority messaging architecture
What level of QoS can current layer 2 HN technologies support?
 Prioritized QoS
How can a QoS management system remain L2 agnostic?
 IP based priority messaging with generalized levels of priority
How can legacy devices be integrated into a HN QoS solution?
 A prioritized QoS architecture accommodates legacy devices
Harmonization of J.192 (CableHome) and UPnP.
 Both have much to offer and they are complimentary.
Harmonizing is in the best interest of all parties involved.
1/2/2019

4. Highlights from Presentation 2 “Prioritized vs
Highlights from Presentation 2 “Prioritized vs. Parameterized QoS on the Home Network”
What are the primary considerations for HN QoS?
 Policy, packet forwarding, and media access
What is the primary difference between the two?
 Prioritized: differentiated access/queuing
 Parameterized: planned access/queuing
Which is the best choice of in home IP networks?
 Prioritized is the best choice
- Legacy network compatible
- Works with dynamic data rates
- Standards and certification currently exist
- Easy to manage, low overhead
- Supports simultaneous services
1/2/2019

5. Highlights from Presentation 3 “Quality of Service for the User (parameters, models, measurement) and Interoperability Issues ”
Dec 2003 TSB organized CTO meeting: key conclusion
 The ITU should take responsibility for defining a globally
interoperable end to end QoS solution that is simple for the user
ITU QoS Workshop: key conclusions & challenges
 End to end QoS is a critical requirement
 Common understanding and implementation of QoS classes needed
across many network types (cellular, wireless, wire-line, access)
 Collaborative effort required to define unified QoS signaling system
Study Group 12 is playing a coordinating role (Question O/12)
 Identifying gaps in standards required to realized end to end QoS
QoS model should be based on end user perception
 G1010: 8 applications classes based on tolerance for loss & delay
 Further development w/in SG 12 will give more specific limits for many
applications (for example online games, telemedicine)
1/2/2019

6. Highlights from Presentation 4 “Home Gateway for Managing Home Network QoS ”
The Home Gateway will play a critical QoS role in home services
 Bridge between the many services being delivered to the home, and
the many device types on the home network
 Connects multiple access network technologies to multiple home
network technologies, bridges QoS among them all
The Key QoS issues include:
 Bandwidth, delay, data loss and stability
The Key QoS requirements include:
 Broadband, guaranteed QoS, congestion proof (for critical
packets), technology independent
ITU is focusing on the Next Generation Network (NGN):
 The HN is a critical part, the Home gateway is the enabling device
 The home gateway should have an open service platform
1/2/2019

7. Overview of issues in the session
A global standard for the interoperable management of QoS on the home network is critical for consumers and is an industry enabler
- Harmonization required among ITU standards, CableHome, UPnP/DHWG
Today, prioritized QoS in the only practical choice for QoS on the HN
- Parameterized QoS will be needed if quality guaranteed services
over the home network are to become a reality (L2 has to catch up)
Without End to End QoS, there is no QoS for services into the home
- The HN is a critical component, must be included in the solution
The Home Gateway is THE device that enables the HN to be integrated into an end to end QoS solution
- Bridge between multiple access technologies and home technologies
Many industry efforts actively addressing various QoS issues
- Aggressive collaboration needed to provide a global cross-network
solution that is uniform from a consumer perspective (SG 12 driven)
Application QoS requirements do not necessarily translate to application priority
Other Issues: Bandwidth requirements for video? Can wireless networks really support entertainment video? Who manages QoS policy on the HN?
1/2/2019

8. Recommendations
Near term deployment focus should be on prioritised QoS for practical reasons
Parameterised QoS is required
- The key is is L2 and other technology developments,
continue L2 and above standards efforts in this area
Continued harmonization between CableHome & UPnP, resulting work to be standardized via J.192 revision
Joint SG9/SG12 sponsored HN QoS Standardization Summit
- Facilitate cross education between HN standards efforts and other
industry forums such as UPnP and DHWG
- Focus on the home gateway and integrating the home network into
an end-to-end QoS solution
- Both recommended at Access NW All-star Workshop
1/2/2019

9. Follow-up actions
When complete, incorporate CableHome/UPnP harmonized solution into J.192 revision
Communications between SG9 and SG12 chairman regarding the possibility of a HN QoS Standardization Summit (in conjunction with the upcoming ITU-T Chairman’s Meeting)
1/2/2019

10. Conclusion Services are king on the home network
Without QoS, many home networking services won’t be accepted by consumers, which will dampen the HN industry
We should get started now with prioritized QoS
Parameterized QoS required by service providers, we must solve the associated technical issues
End-to-end QoS is key for services entering the home, and the home gateway plays a key role in integrating the HN into an end-to-end QoS solution.
1/2/2019