Hans Hyungsoo Kim

1
Implementation Scenario of QoS standard in Korea

• Hans (Hyungsoo) Kim
• KT corp.
• hans9_at_kt.co.kr

2
Contents

• Introduction
• Relative Standards
• How to be implemented
• Future collaboration among three countries

3
Introduction

• Standard bodies have developed QoS standards
• How to be implemented into real field ?

4
Relative Standards

• Focusing on FG NGN works,
• TR-NGN.QoS, TR-NGN.NHNperf., TR-e2eqos,
  TR-123qos, TR-ipaqos and TR-RACS are considered
• Regarding on Other standards,
• G.1000 G.1010 (SG 12)
• Y.1540, Y.1541 Y.1560 (SG 12)

5
Relative Standards SG 12

• Figure 2 / G.1000

6
Relative Standards FG NGN

• Functional Architecture for RACS

7
Relative Standards SG 12

• Architecture for IP signaling

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How to be implemented

• Here is the application requiring Guaranteed QoS
• How to identify Application QoS requirement?
• How to be controlled through Service/Network
  Stratum?
• What kinds of further details should be requested
  ?

Applications
Service Stratum
Transport Stratum
NGN Configuration
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Application QoS requirements

• G.1010 (SG 12)
• Performance requirements for particular
  applications
• If new applications appear or different
  performance requirements are required, new
  performance requirements should be specified

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Application QoS requirements

• Different value of applications for Providers

• When user request Application itself Dont
  need to follow G.1010 !!
• When user request QoS itself
  The burden of processing is too much !!

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Application QoS classes

• AQC makes the engineering easier and more
  efficient !!

Application Requirement
VoIP by web-phone
VoIP for stringent QoS (i.e. 80 ms, 0 Loss)
QoS requirement
Simplified QoS requirement for Network
Engineering (i.e. Call Control, QoS control,
Network Control, Traffic Engineering)
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Network QoS classes

• Y.1541 covers UNI-UNI for IP service
• In optical transmission, 100 ms delay is
  achieved in less than 4,000 Km
• Based on the distance and complexity of link, it
  should be modified

Added in Feb. of 2005
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Network QoS classes

• In Korea, the longest link is less than 600 km
  and has 8 routers
• End-to-end performance objectives are allocated
  as follows
• Based on the above apportionment, more details
  are allocated as follows

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Conclusion

• For the end-to-end QoS control, Application QoS
  Classes concept is useful to cooperate with
  Network QoS classes
• AQC is developing in TR-NGN.QoS of FG NGN WG3
• Network QoS classes should be allocated /
  extended, based on the each country's and
  providers network (distance and complex)