Full HD LINE free call

•

4 likes•2,352 views

Jungnam Gwock LINE+ / VoIP Platform DevThis session overviews the PLANET VoIP platform that has been developed for the last two years. The PLANET VoIP platform is designed to enhance the existing LINE free call's quality. And then, it introduces the Full HD voice that is served by the PLANET VoIP platform.

Technology

LINE FREE CALL STRUCTURE
Call UI
VoIP Client Module VoIP Servers

LINE FREE CALL STRUCTURE
Call UI
VoIP Client Module VoIP Servers
VoIP Platform

PLANET
Better call quality
Long time project

PLANET
Call UI
VoIP Client Module VoIP Servers
VoIP Platform

PLANET
Call UI
VoIP Client Module VoIP Servers
VoIP PlatformVoIP Platform
VoIP Client Module VoIP Servers

SIP
Session Initiation Protocol, RFC 3261

SIP
Why the SIP is so popular?
Just because it’s the standard?

SIP
Why use the SIP ?
Inter-connection: solve compatibility issues

SIP
Inter-connection
Human readble text: large packet size
Why use the SIP ?

PLANET PROTOCOL DESIGN
Network friendly protocol
SIP
SDP
ICE
Cassini
Huygens
Bepi

DATA CONSUMPTION COMPARISON
1. Start capture on the caller device
2. Call and answered
3. Remain packets sent or received with
(a) call server(s)
4. Compare maximum data rate

DATA CONSUMPTION COMPARISON
Call setup data consumption
160
125
52
34
21
A B C OLD-LINE NEW-LINE
값축
Data rate (kbps)

FULL HD VOICE
Voice quality
Narrow band, HD Voice Full HD Voice
LINE Free call have served HD Voice call until now

APP COMPARISON
~ 4KHz ~ 8KHz ~ 12KHz ~ 20KHz
HD Voice
HD Voice
SWB Voice
HD Voice
Full HD Voice
A
B
C
OLD LINE
NEW LINE

SUPER WIDE BAND
Mic
Device
VoIP Platform
~ SWB,
48k samples/sec

SUPER WIDE BAND
Mic
Device
Speaker
Device
VoIP Platform
~ SWB,
48k samples/sec
VoIP Platform
Full band, 48kHz~ SWB

COMPARISON
HD Voice Full HD Voice
LINE Version OLD LINE NEW LINE
FREQUENCY ~ 8k Hz ~ 20k Hz
Test Device
iPhone 8
(SWB)
iPhone 8
(SWB)

COMPARISON
Guess which is the Full HD Voice
Number 1.
Number 2.

FOR THE BETTER VIDEO CALL QUALITY
Image quality

FOR THE BETTER VIDEO CALL QUALITY
Image quality
Scene Image
Camera
Bitstream
Video Codec

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Image Bitstream
Video Codec
NET
Network Adaptation

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Image
Video Codec
NET
Network Adaptation
Bitstream

FOR THE BETTER VIDEO CALL QUALITY
Loss robustness

FOR THE BETTER VIDEO CALL QUALITY
Loss robustness
FEC vs Retransmission
Low High
Latency
Datausage
FEC
Retrans-
mission

FOR THE BETTER VIDEO CALL QUALITY
Loss robustness in LINE
OLD LINE NEW LINE
Retransmission Optional Optional
FEC scheme Flexibel FEC
Flexible FEC +
Iterative decode
Video stream None Temporal SVC
Flexibel FEC: https://datatracker.ietf.org/doc/draft-ietf-payload-flexible-fec-scheme/

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Increase Loss robustness

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Increase Loss robustness
Traffic

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Increase Loss robustness
Traffic
Network
Congestion

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Decrease Loss robustness
Traffic
Network
Congestion

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
CCFS: Congestion Control based on Forward path Status

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
CCFS: Congestion Control based on Forward path Status
Available Forward Path Bandwidth

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Available Forward Path Bandwidth
Audio
CCFS: Congestion Control based on Forward path Status

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Available Forward Path Bandwidth
Audio
FEC Audio
CCFS: Congestion Control based on Forward path Status

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Available Forward Path Bandwidth
Audio
Video
FEC Audio
CCFS: Congestion Control based on Forward path Status

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation
Available Forward Path Bandwidth
Audio
FEC Video
Video
FEC Audio
CCFS: Congestion Control based on Forward path Status

FOR THE BETTER VIDEO CALL QUALITY
Network Adaptation in LINE
OLD LINE NEW LINE
Congestion Detector
GCC for Video
Downy for Audio
CCFS
Estimate Available BW None CCFS
Consider FEC None YES
GCC: Google Congestion Control

FULL HD VIDEO CALL
Camera
Processing Power
Network Condition

SUMMARY
Designed new call setup protocols
Full HD voice quality
Enhanced video call quality

NetOpsCoding#2のLTで発表した資料です． https://atnd.org/events/74772 Abstract: ネットワークの業務をしていく上で，「検証」についての悩みは尽きません．検証したくても検証機は沢山用意できるはずもなく，少ない検証機は多人数が触るでハチャメチャな中身になってしまい，ストレスMAXです．そんな悩みを""極力""解消すべく，検証用環境のネットワークを実機とgobgpやその付属APIを使って構築してみたお話をします．

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Full HD LINE free call

1. Full HD LINE Free Call

2. LINE FREE CALL

3. LINE FREE CALL STRUCTURE Call UI VoIP Client Module VoIP Servers

4. LINE FREE CALL STRUCTURE Call UI VoIP Client Module VoIP Servers VoIP Platform

5. LINE FREE CALL STRUCTURE Call UI VoIP Client Module VoIP Servers VoIP Platform

6. PLANET Better call quality Long time project

7. PLANET Call UI VoIP Client Module VoIP Servers VoIP Platform

8. PLANET Call UI VoIP Client Module VoIP Servers VoIP PlatformVoIP Platform VoIP Client Module VoIP Servers

9. PLANET Planet protocols Media Quality

10. PLANET PROTOCOLS

11. SIP Session Initiation Protocol, RFC 3261

12. SIP

13. SIP Does it fit in mobile apps ?

14. SIP Why the SIP is so popular? Just because it’s the standard?

15. SIP Why use the SIP ? Inter-connection: solve compatibility issues

16. SIP Why use the SIP ? Inter-connection: solve compatibility issues

17. SIP Inter-connection Human readble text: large packet size Why use the SIP ?

18. SIP

19.

20. PLANET PROTOCOL DESIGN Network friendly protocol SIP SDP ICE Cassini Huygens Bepi

21. DATA CONSUMPTION COMPARISON 1. Start capture on the caller device 2. Call and answered 3. Remain packets sent or received with (a) call server(s) 4. Compare maximum data rate

22. DATA CONSUMPTION COMPARISON Call setup data consumption 160 125 52 34 21 A B C OLD-LINE NEW-LINE 값축 Data rate (kbps)

23. DATA CONSUMPTION COMPARISON Call setup data consumption 160 125 52 34 21 A B C OLD-LINE NEW-LINE 값축 Data rate (kbps)

24. FULL HD VOICE

25. FULL HD VOICE Voice quality Narrow band, HD Voice Full HD Voice LINE Free call have served HD Voice call until now

26. … Insert image

27. … Insert image

28. APP COMPARISON ~ 4KHz ~ 8KHz ~ 12KHz ~ 20KHz HD Voice HD Voice SWB Voice HD Voice Full HD Voice A B C OLD LINE NEW LINE

29. SUPER WIDE BAND

30. SUPER WIDE BAND Mic Device VoIP Platform ~ SWB, 48k samples/sec

31. SUPER WIDE BAND Mic Device Speaker Device VoIP Platform ~ SWB, 48k samples/sec VoIP Platform Full band, 48kHz~ SWB

32. SUPER WIDE BAND Mic Device Speaker Device VoIP Platform ~ SWB, 48k samples/sec VoIP Platform Full band, 48kHz~ SWB

33. COMPARISON HD Voice Full HD Voice LINE Version OLD LINE NEW LINE FREQUENCY ~ 8k Hz ~ 20k Hz Test Device iPhone 8 (SWB) iPhone 8 (SWB)

34. COMPARISON HD Voice Full HD Voice LINE Version OLD LINE NEW LINE FREQUENCY ~ 8k Hz ~ 20k Hz Test Device iPhone 8 (SWB) iPhone 8 (SWB)

35. COMPARISON Guess which is the Full HD Voice Number 1. Number 2.

36. COMPARISON Guess which is the Full HD Voice Number 1. Number 2.

37. COMPARISON Guess which is the Full HD Voice Number 1. Number 2.

38. COMPARISON Guess which is the Full HD Voice Number 1. Number 2.

39. VIDEO CALL

40. FOR THE BETTER VIDEO CALL QUALITY

41. FOR THE BETTER VIDEO CALL QUALITY Image quality

42. FOR THE BETTER VIDEO CALL QUALITY Image quality Scene Image Camera Bitstream Video Codec

43. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation

44. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Image Bitstream Video Codec NET Network Adaptation

45. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Image Video Codec NET Network Adaptation Bitstream

46. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Image Video Codec NET Network Adaptation Bitstream

47. FOR THE BETTER VIDEO CALL QUALITY Loss robustness

48. FOR THE BETTER VIDEO CALL QUALITY Loss robustness FEC vs Retransmission Low High Latency Datausage FEC Retrans- mission

49. FOR THE BETTER VIDEO CALL QUALITY Loss robustness in LINE OLD LINE NEW LINE Retransmission Optional Optional FEC scheme Flexibel FEC Flexible FEC + Iterative decode Video stream None Temporal SVC Flexibel FEC: https://datatracker.ietf.org/doc/draft-ietf-payload-flexible-fec-scheme/

50. FOR THE BETTER VIDEO CALL QUALITY Loss robustness in LINE OLD LINE NEW LINE Retransmission Optional Optional FEC scheme Flexibel FEC Flexible FEC + Iterative decode Video stream None Temporal SVC Flexibel FEC: https://datatracker.ietf.org/doc/draft-ietf-payload-flexible-fec-scheme/

51. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Increase Loss robustness

52. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Increase Loss robustness Traffic

53. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Increase Loss robustness Traffic Network Congestion

54. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Increase Loss robustness Traffic Network Congestion

55. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Decrease Loss robustness Traffic Network Congestion

56. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Decrease Loss robustness Traffic Network Congestion

57. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation CCFS: Congestion Control based on Forward path Status

58. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation CCFS: Congestion Control based on Forward path Status Available Forward Path Bandwidth

59. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Available Forward Path Bandwidth Audio CCFS: Congestion Control based on Forward path Status

60. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Available Forward Path Bandwidth Audio FEC Audio CCFS: Congestion Control based on Forward path Status

61. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Available Forward Path Bandwidth Audio Video FEC Audio CCFS: Congestion Control based on Forward path Status

62. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation Available Forward Path Bandwidth Audio FEC Video Video FEC Audio CCFS: Congestion Control based on Forward path Status

63. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation in LINE OLD LINE NEW LINE Congestion Detector GCC for Video Downy for Audio CCFS Estimate Available BW None CCFS Consider FEC None YES GCC: Google Congestion Control

64. FOR THE BETTER VIDEO CALL QUALITY Network Adaptation in LINE OLD LINE NEW LINE Congestion Detector GCC for Video Downy for Audio CCFS Estimate Available BW None CCFS Consider FEC None YES GCC: Google Congestion Control

65. FULL HD VIDEO CALL

66. FULL HD VIDEO CALL Camera Processing Power Network Condition

67. SUMMARY Designed new call setup protocols Full HD voice quality Enhanced video call quality

68. SUMMARY Designed new call setup protocols Full HD voice quality Enhanced video call quality

69. THANK YOU

Full HD LINE free call

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