2g e2e qos - how do we manage our limited resources rev pa2

Network Master Plan Tech Planning

2G E2E QoS How do we manage our limited resources?Discussion Material June 2013

#0E2E QoS Architectural Overview What does each node do?MobileBackhaulRANRANRBSBSC/RNCSGSNGGSNPCRFHLRGiGnGxGxIuPSIubUuUEPrioritization of IP packetsPrioritization of IP packetsPrioritization of IP packetsNegotiation of QoS parametersScheduling of resources (air interface)StaticQoS profileDynamic QoS controlNegotiation of QoS parametersRadio resource managementPacket inspection engine

#6/18/20132011-10-19 1 E2E QoS Technical Solution Presentation Drivers and Principles 2012-02-01 3/221 09-FGD 101 30/V8 Uen, Rev B 1E2E QoS : Dynamic QoS Control at Bearer EstablishmentPCRFBSCHLRGGSNSGSNRBSInsert Subscriber Data incl. QoS Profile Subscribed, this is performed at GPRS Attach Procedure1Activate PDP Context Request incl. QoS Requested from the UE,followed by QoS evaluation in SGSN2Create PDP Context Request,followed by admission control in GGSN3GGSN provides PCRF with session information that, together with subscriber and subscription information, is used by PCRF to evaluate the QoS that is to be authorized 4GGSN negotiates the QoS received from PCRF and sends a Create PDP Context Response to SGSN5SGSN re-evaluates the QoS Negotiated, followed by a RAB Assignment Request incl. QoS Negotiated6The BSC maps the QoS attributes, which are received from SGSN, to RAN-internal QoS profiles, followed by Radio Bearer Setup/Complete7RAB Assignment Response8Activate PDP Context Accept9PDP Context (Default Bearer) defined and established with the negotiated QoS10

#6/18/20132011-10-19 2 E2E QoS Technical Solution Presentation Use Cases 2By default Voice is always prioritized in 2G QoS Negotiation is applicable for Data Flow (IP)QoS in 2G Radio Network

Before Implementing Data Prioritization in 2G network, we need to get adequate 2G data channels bot h Fixed PDCH and OD-PDCH

#QoS in GSM RAN QoS classesBackground (3)Interactive (2)Streaming (1)

QoS attributesMaximum bit rate (MBR)Transfer delay (TD)Guaranteed bit rate (GBR)Traffic Handling Priority (THP)

BSCSGSNRBSGbUmUEGSM RAN (BSS)

#6/18/20132011-10-19 4 The QoS classes Background, Interactive, and Streaming are supported.

The following QoS attributes are supported in GSM RAN (BSS):Maximum bit rate (MBR).Transfer delay (TD).Guaranteed bit rate (GBR).Traffic Handling Priority (THP).QoS Management in GSM RANTo fulfill the negotiated QoS commitment the capacity on GSM air interface is controlled by: Time slot reservation Time slot scheduling

This means that the packet data sessions is scheduled according to their relative QoS weight and that sessions with different weights must be able to interact.

#6/18/20132011-10-19 5 E2E QoS Technical Solution Presentation Concepts and Mechanisms 5Use case PAYU USERS QoS classesBackgroundInteractiveStreaming


BSCSGSN-MMERBSGbUmUEGSM RAN (BSS)PAYU users set as high priority, e.g THP 1 and will be scheduled more oftenPCRF will check the user profile, and define the priority for PAYU user on rest of package.


The following QoS attributes are supported in GSM RAN (BSS):Maximum bit rate (MBR).Transfer delay (TD).Guaranteed bit rate (GBR).Traffic Handling Priority (THP).Use case BBM & Chatting QoS classesBackgroundInteractiveStreaming


BSCSGSN-MMERBSGbUmUEGSM RAN (BSS)


The following QoS attributes are supported in GSM RAN (BSS):Maximum bit rate (MBR).Transfer delay (TD).Guaranteed bit rate (GBR).Traffic Handling Priority (THP).Use case Download (detected applications*) QoS classesBackgroundInteractiveStreaming


BSCSGSN-MMERBSGbUmUEGSM RAN (BSS)Download set as Lowest priority, e.g THP 3 and will be less scheduled*PCRF is required


The following QoS attributes are supported in GSM RAN (BSS):Maximum bit rate (MBR).Transfer delay (TD).Guaranteed bit rate (GBR).Traffic Handling Priority (THP).REQUIRED INVESTMENT RAN Features have been included in Mega Tender Results need to review with Ericsson and Huwaei to ensure all related features are included PCRF Availability Service Cost for implementing end to end QoS Note: AP- Trial for some specific users in Ghra XL & Prima Cells

#Thank you

#2G & 3G Qos comparison transort network point-of-view

3G2GBy default Voice is higher priorityQoS Negotiation applicable for Data Flow

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2g e2e qos - how do we manage our limited resources rev pa2

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