The Different Levels of QoS and Why They Matter. Consultant Webinar October 2017 Bruce Lawler

Transcription

1 The Different Levels of QoS and Why They Matter Consultant Webinar October 2017 Bruce Lawler 1

2 What Is QoS 2

3 Journey to QoS Actually started in 2008 LTE 8 LTE 9 LTE 10 LTE 11 LTE 12 LTE 13 LTE 14 VoLTE Enhanced QPP Mobile Data Support for LTE Band 14 Location Services MBMS Emergency Calling Cell on Wheels Relays for LTE Increased Data Throughput 1.25W Devices on Band 14 Group Communication Enablers Proximitybased Service (ProSe) MC Voice* ProSe Enhancements Isolated Operations embms Enhancements MC Data* MC Video* * Application Standards 3

4 What Is QoS LTE & MCPTT standards provide parameters for prioritization of traffic on common network 3GPP Rel 12 introduces new QCI parameters for mission critical communications Provides users with prioritized access to network resources and guaranteed level of performance Tight integration between network and application is key to effectively implement prioritization Dynamic QoS and priority via Rx interface 4

5 Prioritization Tools Radio Admission Control (ACB) Prevent entire classes of user from connecting to network using Access Class Barring (ACB) Access classes : 0-15 Service A Allocation and Retention Priority (ARP) Admission Priority, Preemption capability, Preemption vulnerability Scheduling Priority (QCI) Scheduling and traffic prioritization QoS Class Indicator (QCI) Packet Priority, Delay budget, Packet Error loss Rate and Bandwidth Management GBR Guaranteed Bit Rate, Maximum Bit Rate Non-GBR Aggregate Maximum Bit Rate 5

6 Why QoS Matters 6

7 Why QoS Matters Can be used to manage network resources in real time as roles, locations and media types change Provide consistent, predictable performance for critical delay-sensitive applications, such as streaming video Intelligently allocate resources to those who need them most at that moment 7

8 Why It Matters at an Incident in the Field Incident Management System sets Priority and QoS based on location and role Users in region assigned corresponding priority Users entering region automatically assigned priority 8

9 Different Levels of QoS 9

10 Different Levels of QoS Static QoS Resources committed and reserved ahead of calls based on user s provisioned level of service Dynamic QoS Resources assigned dynamically when calls establishment Policybased QoS Dynamically based on policies in place: User role Application type Location Incident 10

11 FirstNet QPP Framework QPP Evolves from Static to Dynamic with Local Control 11

12 Network Integration and the Rx Interface 12

13 QoS and Network Integration 13

14 Without Integration - No Control A Simple View of Network Integration App and Network lacks synchronization and integration required for MCPTT standard PTT APP NETWORK 14

15 With Network Integration Local Control Priority QoS MCPTT APP Dynamic QPP Manager MCPTT NETWORK 15

16 Dynamic Prioritization with Rx Interface Default Priority is elevated when incident occurs Incident detected by Responder emergency button Administration Application analysis Application Server communicates with PCRF (via Rx interface) to elevate QoS priority User Role / Selection Eligible Services Service A Participants QoS Upgrade Service B QoS Profile (QCI, ARP) Service C 16

17 Quality of Service (QoS) Static QoS adds a dedicated lane Commercial wireless network without QoS 17

18 Static QoS A dedicated lane can still suffer from traffic 18

19 Dynamic QoS Dynamic lanes allocated by role, location, type, etc. * Network Integration Required 19

20 QoS Summary LTE and MCPTT standards provide needed parameters for prioritization of critical PTT traffic New QCI parameters for mission critical communications Tight integration between network and application is key to effectively implement prioritization Roles-based QoS and priority via Rx interface Coordination and Operational processes required for QoS assignment between networks 20

21 Questions? 21

22 Thank you kodiakptt.com 22