![Page 1: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/1.jpg)
11/25/2013
1
![Page 3: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/3.jpg)
Bandwidth…
A picture may be worth a thousand words
BUT it takes a lot more bandwidth to store and send around
in Real time… with low latency
11/25/2013
3
HikingArtist
![Page 4: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/4.jpg)
Speakers
• Goran Stromberg – Senior Solution Manager
– Ericsson
• Frederic Huve Industry Principal and Chief Solution Architect Network Applications Communications & Media Solutions HP Enterprise Services
11/25/2013
4
![Page 5: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/5.jpg)
WEBRTC IN THE WIRELESS CARRIER SPACE
Goran Stromberg
Senior Solution Manager
Ericsson
11/25/2013
5
![Page 6: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/6.jpg)
Instant Messaging
Group Message
File Transfer
Video Share
Capabilities Discovery
CS Voice
HD Voice Call
Video Call
Voice/Video Conf.
Address and
Contact Bar
Augmented Web
Communication
MeTab
Communication
Dashboard
Extended Web communication Consumer, Enterprise, Wholesale
![Page 7: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/7.jpg)
Building Front End
Web server
Web Application
Browser
Web App
Web API’s
WebRTC
Find & Connect
IMS
H2S
GW
Wireless
Device
PSTN
Device
Telecom Network
Helper
(ICE)
Server
HTTPS/REST
SRTP/SRTCP
EXISTING and FUTURE Telecom Services
EP
C
eN
B
![Page 8: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/8.jpg)
Web server
Web Application
Browser
Web Application
Web API’s
WebRTC
Carrier PAAS Services
Find and Connect Find and Connect
ICE Media Services
SIP/HTTPS
Browser
Web Application
Web API’s
WebRTC
Find and Connect SIP/HTTPS
SRTP/SRTCP SRTP/SRTCP
PAAS Offering
Cloud Services to an Enterprise
![Page 9: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/9.jpg)
CEBP
Retailer case
Expert
shop
Insurance case
Agent
Insurance Company
Remote patient
monitoring Case
Doctor
Hospital
Visualcom
External web Users
Enterprise
Examples of Wholesale…
![Page 10: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/10.jpg)
Network Impact / Challenges
• QoS for WebRTC Traffic – Identify the optimum way of using LTE QoS for SRTP/SRTCP – Using transport DSCP marking and Ethernet pBit is desired
• Large Capacity Demands on LTE Access – Impact on Cell Planning and RF Optimization – Voice/video bandwidth + security overhead – May impact scheduling, timing, transport block sizing, etc… – Work in progress to improve LTE RRM efficiency for high video BW
• Transcoding to/from OPUS in IMS Media GWs – Optimum codec selection with the least fallback for all call types
![Page 11: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/11.jpg)
Summary
• WebRTC fits very well into 4G Telecom Infrastructure
• WebRTC is enabler for many new business opportunities in the wireless carrier space
• Existing LTE QoS concept can be used for WebRTC apps – if desired
• WebRTC brings challenges with high bandwidth demands on LTE access. Work is in progress to meet those demands but spectrum availability will also be paramount
![Page 12: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/12.jpg)
WEBRTC IMPACT ON ENTERPRISE & INTERNET IP NETWORKS
Frederic Huvé
Industry Principal and Chief Solution Architect Communications & Media Solutions/Network Applications
HP Enterprise Services
11/25/2013
12
![Page 13: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/13.jpg)
Agenda
• Reminder for RT QoS over IP network
• WebRTC use-cases, and impact on IP networks
– Enterprise IP networks for enterprise users
– Internet (xDSL) for consumers
• Solutions to optimize WebRTC experience
11/25/2013
13
![Page 14: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/14.jpg)
IP Network QoS for RT Comms
11/25/2013
14
Voice/Video QoS requirements • Data & Voice packet loss < 1% • Data& Voice jitter < 30 ms • Voice Latency < 150 ms • Voice RTT < 300 ms • No QoS/ToS change allowed
At high utilization time, packet loss (up to 4%) and
levels of jitter rise (up to 60ms)
Huge daily IP network utilization during working hours
*actually leading to capacity collapse
On October, 3rd
In sync with that,
occasionally causes latency
extensions from 100 msec
to 140 msec
and RTT extends from <200 msec
to > 300msec
Impact on RT communications
![Page 15: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/15.jpg)
WebRTC use-cases
Consumer market • Web interactive voice & video sessions
(e.g. Click-To-Call)
• Healthcare, Education, Video surveillance use-cases, …
Enterprise market • Collaboration: voice/video/desktop and
application sharing
• Web interactive voice & video sessions
11/25/2013
15
![Page 16: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/16.jpg)
WebRTC IP requirements
Enterprise scenario - powerful laptop
• Voice communication, Opus Voice codec ~32 kbps average (~20% variation observed: 28-40 Kbps)
• Video communication, VP8 video codec, Enterprise Network
11/25/2013
16
SVGA (960x720) 720p (1280x720)
Desktop sharing (video)
Medium video changes (12-13 fps) = 590 kbps
Medium video changes (12-13 fps) = 640 kbps
Camera Frequent video changes (25 fps) = 1.8 mps
Frequent video changes (25 fps) = 2 mps
![Page 17: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/17.jpg)
WebRTC IP requirements (end)
Consumer scenario – Laptop/Tablet/Smartphones
• Voice communication, Opus speech codec ~32 kbps average, important variation observed.
• Video communication, VP8 video codec, Internet Network (xDSL-2-xDSL)
11/25/2013
17
600 x 600 Camera Medium video quality (~25 fps) = 580 kbps Rx
Medium video quality (~25 fps) = 820 kbps Tx
![Page 18: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/18.jpg)
Impacts on IP network
• Explosion of IP QoS bandwidth: 2Mbps full duplex video stream per browser
Chrome RT engine tries to maximize the usage the hosting devices capabilities to optimize the user experience !
• Set the right QoS marking for Signaling, voice, voice & video, data, and ensure e-2-e QoS settings
• Congestion control is required for heavy loaded IP network 11/25/2013
18
![Page 19: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/19.jpg)
Impacts on IP network For consumer market 50% of session using video will
lead to 300-500% BW increase with corresponding interactive video/voice QoS
For enterprise market Huge impact on Enterprise Network
to supports “mobile” video conferencing endpoints. Up to 15x increase ! 11/25/2013
19
Voice won’t be the problem !
Co
urt
esy
PK
E C
on
sult
ing
Forecast of data usage per user / month
![Page 20: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/20.jpg)
Solutions to manage IP network There’s strong need for Active Network
Performance Monitoring:
• For Enterprise IP network, product (like PathView product) going across LAN, WAN, MPLS networks, providing continuous Monitoring , SLA Validation and QoS validation (Figure shows QoS flag has been stripped at hop 6).
• Existing OSS monitoring solution with specific plug-in, e.g. MPLS, LTE‘s HP NNMi Plug-Ins (figure shows the EnodeB neighborhood view – ANR
usecase)
11/25/2013
20
![Page 21: 1 11/25/2013 - TMCnet · PDF file–Identify the optimum way of using LTE QoS for SRTP/SRTCP ... •Reminder for RT QoS over IP network ... 11/25/2013 14 Voice/Video QoS requirements](https://reader034.vdocuments.us/reader034/viewer/2022052608/5a9023197f8b9abb068dee51/html5/thumbnails/21.jpg)
Solutions for WebRTC Applications
When the Carrier or Large Enterprise are part of the communication chain, there is a need for WebRTC to SIP GW to implement
→The media policies, e.g. – Authorized SD or HD Voice, Audio, stereo Audio – Authorized Video codecs, definition, bit-rate and frame-rate
→ on the fly Real Time transcoding from WebRTC Enterprise UC/VoIP/VoLTE/... worlds
→ e-2-e QoS mapping depending on the mobility scenario e.g. for Enterprise IP network, Audio mapped to ‘EF’ with higher Priority than Audio/Video mapped to ‘AF1’ on LANs & WANs
→ e-2-e Congestion control from WebRTC world to SIP e.g. Need RTCP XR extensions to let the application understand that the Packet loss is caused by congested routers
11/25/2013
21