LTE L13B FEATURES AND FUNCTIONALITY

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

Introduction

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

Customize the network

Enhance the network

Enhance end user experience Which features are introduced in L13B?

How can I use these features to improve the network?

How can I learn more?Why learn about LTE L13B Functionality?

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

L13B Basic FeaturesL13B Optional Features

Scope and ObjectivesObjectivesScopeDescribe the new functionality in L13BBe able to use these features to improve LTE networks

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Overview

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

Based on 3GPP Rel-10

New and Enhanced Features

LTE L13B Functionality

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1500 RRC Connected users 360 VoIP users 175 Mbps DL 50 Mbps UL 12 SE/TTI/DUL 120 MHzL13B Capacity per DUL

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2500 RRC Connected users 600 VoIP (400 for TDD) 300 Mbps DL 90 Mbps UL 24 SE/TTI/DUS 240 MHzL13B Capacity Improvements DUS31

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3000 RRC Connected users 1000 VoIP (500 for TDD) 500 Mbps DL 150 Mbps UL 24 SE/TTI/DUS 480 MHzL13B Capacity Improvements DUS41

LTE 13B Basic features

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Operations needed for LTE Radio Access NetworkeNodeB Operating SystemConfiguration, Fault, Software and Performance ManagementBasic Traffic Management towards other E-UTRAN and the Core Network Basic Traffic Management towards User Equipment (UE)

LTE Basic

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Auto Integration of RBS - Enhanced

L13B LTE Basic Features Enhanced

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Auto-IntegrationWith laptop since L11BEnhancements in L13BBetter GUI/logs

Without LaptopNew in L13BSmartphone (eNIS app) required

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RBS auto-integration- Without laptopO&M Network / OSS-RCInstall RBSRead and send bar codes from appTurn on power on RBSMonitor integration progress via LEDPrepared configREADREAD

LTE 13B Optional features

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

Carrier Aggregation [New]Combined Cell [New]Enhanced PDCCH Link Adaptation [New]Multi-Target RRC Connection Re-Establishment [New]CS Fallback to CDMA 1X [New]Enhanced CS Fallback to CDMA 1X [New]Inter-RAT Offload to WCDMA [New]Intra-LTE Inter-Mode Handover [New]Mobility Control at Poor Coverage [New]Multi-Operator RAN [New]S-GW relocation at X2 handover [New]SRVCC handover to GERAN [New]

L13B LTE Optional Features Overview New Optional Features, Radio Network Functionality

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

Carrier AggregationUp to 20 MHz aggregate DL bandwidth for FDD5+5, 5+10, 10+10 MHz

Intra-band aggregation, contiguous component carriersIntra-band aggregation, non-contiguous component carriersInter-band aggregation (Supported in L13B)

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Support of different 3GPP Rel-10 deployment scenarios for CACarrier AggregationScenario #1 SupportedScenario #2- Supported, not optimizedScenario #3- Supported, not optimizedScenario #4- Supported w. 1 UL, not optimizedScenario #5- Supported w. 1 UL, not optimized

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Combined CellImproved coverage and end-user experienceSync, Sysinfo, etcSync, Sysinfo, etc Same info as macroSync, Sysinfo, etc Same info as macro

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Combination of up to four Sector Carriers into one cellRel-8 UE supported (No area splitting gain for PDSCH/PDCCH)PDSCH from all Sector CarriersSFN gains for PDSCH/PDCCHDL CoMPSelective muting of non-contributing Sector CarriersUL CoMPCombining of two strongest Sector CarriersCombined Cell

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

DescriptionImproved Control channel capacity and robustnessMore users can be scheduled in high load scenarios

Operator benefitIncreased system capacityHigher spectrum efficiency

Enhanced PDCCH Link AdaptationIncreased capacity Better end user experience in high load scenarios

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New PDCCH outer loop in L13B:Separate PDCCH outer loop based on PDCCH reception success/failure eNodeB considers a UL grant is received successfully if the corresponding PUSCH transmission is detected. It is lost otherwise.eNodeB considers a DL assignment is received successfully if a valid HARQ-ACK signal (either ACK or NACK) is detected. If eNodeB cant detect a HARQ-ACK signal, it considers the DL assignment is lost.PDCCH SINR is adjusted based on PDCCH reception success/failure

Other ImprovementsTake rank into account when mapping wideband CQI to PDCCH SINR

Enhanced PDCCH Link Adaptation Technical overview

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DescriptionCalls can be re-established after Radio Link Failure in cells belonging to other eNodeB than the source eNodeB. Re-establishment in source already supported.

Operator benefitReduced drop rate, especially useful for VoLTE calls where the user will only notice a short voice outage and not have to re-dial

Multi-target RRC connection Re-establishmentImproved call drop KPIs

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Multi-target RRC connection Re-establishmentTechnical overviewWhere does the UE show up?????

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DescriptionCS Fallback to 1x provides support for single radio LTE-CDMA devices that require network-based CS Fallback capabilitiesThe feature supports the 3GPP Rel 8 feature CS fallback for CDMA

Operator benefitEnables Single radio terminalsSingle radio terminals are cheaper to produce and has lower battery consumption

CS Fallback 1X (Release w/ Redirect)CSFBEnables single radio CS voice fallback for CDMA operators Reduced cost of devices, better battery life.

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E-UTRANMMEServing/PDN GWSGi1xRTT CS Access1xRTT MSC1xCS IWSS102S11S1-MMES1-UA1A1Tunnelled 1xRTT messages1xCS CSFB UE1xCS CSFB UEImplements the basic foundation for Rel 8 CS fallback functionality

CS FAllback 1X (Release w/ Redirect)Technical overview

Contents1x RTT CS Registration over EPS1x CSFB for Voice (blind Release with Redirection (RwR) to 1x CDMA)MO/MT calls from Idle or Active Mode UEMO/MT SMS over S102 (without fallback)E911MME Relocation IWS/MSC tunnel relocation1x 3G parameters and SIB8 Configuration ManagementCSFB Performance Measurements/KPI and alarms

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DescriptionThe feature supports the 3GPP Release 9 feature CS fallback for CDMA

Additional performance improvement by allocating traffic channels on the target system prior to initiating a handover

Enhanced CS Fallback to CDMA 1XCSFBImproved call setup times

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E-UTRANMMEServing/PDN GWSGi1xRTT CS Access1xRTT MSC1xCS IWSS102S11S1-MMES1-UA1A1Tunnelled 1xRTT messages1xCS CSFB UE1xCS CSFB UEImplements the basic foundation for Rel 9 CS fallback functionality, using Universal Handoff Redirection Message (UHDM) from the target system

Enhanced CS Fallback to CDMA 1XTechnical overview

Contents1x CSFB measurement support1x CSFB for Voice (Mobility from EUTRA with UHDM to 1x CDMA)MO/MT calls from Idle or Active Mode UE

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DescriptionThe load in the LTE cell is monitored and in case of load above a threshold UEs can be moved to WCDMA to offload the LTE cellOperator benefitCapacity in WCDMA can be used to manage high load situations in LTEUser experience is preserved during high loadInter-RAT offload to WCDMA Improved end user experience and improved utilization of MBB capacityLTEWCDMA

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At load above a threshold in LTE UEs will be moved to WCDMAWCDMA turns off redirect (W13B) and assigns dedicated idle mode priorities (W14A) to secure the UE stays in WCDMA also in idle.

LTE is implicit informed about load in WCDMAHO is accepted or rejectedInter-RAT offload to WCDMA Trigger load actions100% loadLTE WCDMA

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

DescriptionEnables handover between FDD and TDD mode UE-capability is checked before HOAutomatic configuration with ANR

Operator benefitReduced HO interruption timeBetter support for real time servicesLower OPEX through SONIntra-LTE inter-mode handoverTighter integration of FDD and TDD, better end user experience

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Two bad coverage thresholdsInner search thresholdOuter critical thresholdDefines a search zone

Search for alternative frequencies/RATs in the search zone.Lower measurement load for stationary UEs in poor coverage. Search time outA3 for inter-frequency is introduced

When the critical threshold is crossed, do a blind HO or RwR to highest prio freq/RATMobility Control at poor coverage- Search Zonecriticalsearch zoneSearch for other Freqs/RATs. If found, do HO or RwR. Timer basedUEBlind RwR/HOsearchImproved mobility KPIs in multi-band deployments

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

DescriptionThe feature allows for change of Serving GW (SGW) at X2 handover

Operator benefitThe feature allows for network topologies with smaller SGW areas than MME areasS-GW Relocation at X2 Handover Increased flexibility in Network topologies

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

At X2 handover target eNodeB may receive a new GTP endpoint Included in PATH SWITCH REQUEST ACKNOWLEDGE from MME

Target eNodeB connect the user plane to the new SGW

S-GW Relocation at X2 Handover eNodeBSourceTargeteNodeBHandoverSGW relocation

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

DescriptionA VoLTE call can be handed over to GSM in case of moving out of LTE coverage

Operator benefitLeverage GSM coverage for VoLTE servicesEnables launch of VoLTE without the need for ubiquitous LTE coverageSRVCC handover to GERANEnables early launch of VoLTE service

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DescriptionAllows two operators to share the same cabinet and radio As the same radio is used the complete antenna installation including feeders will be commonEach operator uses its own spectrum Each operator has its own basebandOperator benefitReduced CAPEX and OPEX, with low dependency between sharing operatorsMultI-Operator RAN (MORAN)CNCNEnables simplified site installation and reduced cost

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GW, HSS, HLR, Charging, OSSMSC, SGSN, MME, SGWCell site/ mobile siteMultI-Operator RAN (MORAN)Operator As nodes or resourcesOperator Bs nodes or resourcesShared nodes and resourcesShared carrierShared carrierDedicated carrierL13BL13A

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Advanced Cell Supervision - NEWL13B LTE Optional Features Overview new Optional FeaturesServices and RAN Management

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DescriptionAdvanced Cell Supervision provides an automatic and fast solution for detecting and correcting cells that are not carrying traffic

Operator benefitImproved system availabilityIncreased revenueLower OPEXAdvanced cell supervision (ACS)Higher revenue and Lower OPEX

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

ACSMonitors abnormal conditions in the eNodeB using detectors

Tries to recoverLock and Unlock of cell(Node restart?)

Indicates to OSS possible problematic cellsAdvanced traffic and cell supervision application in OSSSame application for both WCDMA and LTE

Advanced cell supervision (ACS)Technical overviewalarmYesExecute recovery actionSend alarm raise to OSS-RCNoYesFault Detected?Fault Corrected?Send alarm clear to OSS-RCYesFault Ceased?NoStartNoMore recovery actions exists?YesNo

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Egress IP Traffic Shaping [Enhanced]IEEE1588 Frequency Synchronization [Enhanced]Real-Time Security Event Logging [New]Synchronous Ethernet [New]LPPA Support for Observed Time Difference of Arrival (OTDOA) [New]IP and SCTP Transport PM enhancements

L13B LTE Optional Features overviewnew and enhanced Optional FeaturesTransport Network Functionality

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

DescriptionProvides support for the operator to shape traffic in the eNodeB to match the available transport network bitrateOperators with an under-provisioned, poor or lack of QoS handling backhaul will be able to control the bandwidth on the transport network by creating artificial bottlenecks in the eNodeB Enhanced in L13B to support DUS and provide more configuration options

Operator benefitSecure that vital and sensitive traffic, e.g. VoIP, is given precedence at high loadEgress IP traffic shaping Improved service KPIs

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51 / 5424 / 32 / 34 / 36 38 / 40 / 46 / 488 / 16 / 18 / 20 / 22 / 26 / 2810 / 12 / 14 OthersQueue 1Queue 2Queue 3Queue 4Queue 5ShaperCIR CBSQueue depth and Weights per queue Thresholds for tail dropping per queue RED or Tail dropStrict Prio and/or Weighted PrioEgress IP Traffic ShapingTechnical Overview

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DescriptionIEEE 1588v2/PTP can be used to provide frequency synchronization to RBSEnhanced in L13B to support DUS

Operator benefitAn alternative synchronization solutionThe packet network between the eNodeB and the grandmaster clock do not need to be PTP capable. 1588v2/PTP Frequency Synch1588v2 is enabled as an alternative frequency synchronization solutionStandalone 1588v2/ PTP grandmaster

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

DescriptionIdentify and log "security related events"Detection and reporting of the events in real-timeIdentification and detection of unwanted access in the network to prevent and counter unauthorized use and attacks

Operator benefitImproves network securityReal-time Security Event LoggingImproves security by allowing faster analysis of security-related events

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

DescriptionIntroduces support for Synchronous Ethernet on the DUS platform

Operator benefitSynchronous Ethernet provides an alternative frequency synchronization solution to the already supported NTP, PTP and GPS options It can also be used as a complementary technology, e.g. a backup synchronization sourceSynchronous EthernetAn alternative frequency synchronization solution on the physical layer

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LPP annex support for OTDOA cellDescriptionObserved Time Difference of Arrival (OTDOA) is used to improve location accuracy by using time measurements of the DLOperator benefitOTDOA can be used for location support for emergency calls in order to fulfill regulatory requirementsEnables UE positioning based on OTDOA information for UEs that do not support LPP

Compliancy to regulatory requirements for call positioning

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MMELPP annex support for OTDOA cell informationTechnical overviewLPPaLPPE-SMLC = > Evolved Serving Mobile Location Center

E-SMLC

UE

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IP and SCTP Transport PM EnhancementsSummaryCounters not supported earlier for DUL20 (but supported by DUS) based RBSs are supported in L13B

New volume counters per DSCP supported in both DUL and DUS platforms

Operator benefitBetter monitoring support in the SCTP and traffic volume per DSCP class

More information

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

CPI Store: http://cpistore.internal.ericsson.com/alex [Radio Access Network/ LTE Radio Access Network Products/ LTE FDD/LTE FDD L13/ LTE FDD L13B, LTE TDD L13B] Ericsson Product Catalog: http://prodcat.ericsson.seWhere Can I Find More Information?

Summary

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

Basic and Optional FeaturesNew and Enhanced FeaturesCustomize the networkEnhance the networkEnhanced end user experienceSummary - LTE L13B features & Functionality

LTE L13B Features and Functionality | Ericsson Internal | 2013-05-16 | Page *

LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **Hello and welcome to this eLearning course covering Long Term Evolution (LTE) L13B Features and Functionality. LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 * *Introduction LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **This LTE L13B Features and Functionality module will gain your knowledge in how to customize and enhance LTE networks, and how to increase the end user experience. We will go through the new and enhanced features in LTE L13B and see how they can improve the network performance. Finally, links to Ericsson User Guides and Product Catalog will guide you to further reading. LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 * *This module covers and shortly describes the new features in L13B, both Basic and Optional. After this course you will be able to: Describe the new L13B functionality Use these features to improve LTE Radio Access Networks. LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 * *Overview LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **The L13B products are based on 3GPP Release 10. Some of the L13B features are new in this release, while some are enhanced from previous releases. LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 *This figure lists the L13B capacity per eNodeB with Digital Unit DUL: 1500 RRC Connected users 360 VoIP users 175 Mbps DL data rate 50 Mbps UL data rate 12 SE/TTI/DUL 120 MHz total bandwidth

* LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 *L13B capacity improvements per eNodeB with Digital Unit DUS31: 2500 RRC Connected users 600 VoIP users 300 Mbps DL data rate 90 Mbps UL data rate 24 SE/TTI/DUS 240 MHz total bandwidth

LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 *L13B capacity improvements per eNodeB with Digital Unit DUS41: 3000 RRC Connected users 1000 VoIP users 500 Mbps DL data rate 150 Mbps UL data rate 24 SE/TTI/DUS 480 MHz total bandwidth LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **LTE 13B Basic Features LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **LTE Basic is a software package that performs all operations needed for a LTE Radio Access Network. It is a large group of functions assembled into one working system with basic performance. The system is here referring to a Radio Access Network based on a logical eNodeB node, as defined by 3GPP. LTE Basic functions reside mostly in the eNodeB and partly in the Operation and Support System - Radio and Core (OSS-RC) providing: Operating system for the LTE eNodeB including the software platform. Functionality needed for basic Configuration, Fault, Software and Performance management. Functionality needed for basic Traffic management towards other eNodeBs and the Core Network. Functionality needed for basic Traffic management towards the User Equipment (UE) via the Air interface.

LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **There is one enhanced basic feature in L13B:Auto Integration of RBS. This feature can now utilize a smartphone camera at integration. LTE L13B Features and Functionality *2011-10-19 *LTE RAN OAM and SON Roadmap LTE RAN OAM and SON Roadmap LTE RAN OAM and SON Roadmap NRJ-13:000227 Uen, Rev PA3 NRJ-13:000227 Uen, Rev PA1 Auto integration feature has been available in the LTE RAN since L11B. In the existing implementation of the auto-integration feature, the on-site integrator logs in to the RBS with a laptop and initiates the RBS integration. In L13B the Graphical User Interface has been enhanced during auto-integration, which includes more detailed information and better progress information.In L13B Auto-integration of RBS also provides an option of using a smartphone app Ericsson Network Integration Scanner (or e-NIS) at site during the integration. We shall take a deeper look into this feature.

*LTE L13B Features and Functionality 2013-05-16 LTE L13B Features and Functionality *2011-10-19 *LTE RAN OAM and SON Roadmap LTE RAN OAM and SON Roadmap LTE RAN OAM and SON Roadmap NRJ-13:000227 Uen, Rev PA3 NRJ-13:000227 Uen, Rev PA1 *2011-10-19 *LTE RAN OAM and SON Roadmap LTE RAN OAM and SON Roadmap NRJ-13:000227 Uen, Rev PA1 *2011-10-19 *PCI handling Lets take a deeper look into the RBS Auto Integration without laptop feature. In this figure, we look at it from the RBS site perspective. The RBS is physically installed by the installers. The integration has not started yet. However, OSS-RC and the network are already prepared with configuration data for this RBS.Now the integrator comes to site. The e-NIS app is used for reading (or scanning) hardware serial number and, optionally, the site location - and sending the information to the O&M network together with the site ID. These parameters form a work-order. The network will indicate to the smart phone that it is ready. The RBS can now be powered-on. Pre-prepared configuration in the network will be sent down to the RBS.But how will the integrator know when the integration is complete?The integrator simply monitors the progress through the LEDs on the Digital Unit.As seen here, only a few parameters are required to read at site through the eNIS app. The RBS and the O&M network take care of the rest!!! As already mentioned, this functionality requires configuration data for the RBS to be prepared in the OSS-RC beforehand.

*LTE L13B Features and Functionality 2013-05-16 LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **LTE 13B Optional Features LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **The L13B new optional features for Radio Performance are:Carrier Aggregation aggregates the bandwidth from different carriers and bands up to 20 MHzCombined Cell extends the coverage by letting multiple RRUs operate as one cellEnhanced PDCCH link adaptation introduces a dedicated link adaptation capability for PDCCHMulti-Target RRC Connection Re-establishment allows the connection to be re-established also in another eNodeB than previous serving cellCS Fallback to CDMA 1X supports the redirection of a LTE UE to CDMA 1x to pick up a voice callEnhanced CS Fallback to CDMA 1X improves the performance by implementing the 3GPP Rel 9 functionality IRAT Offload to WCDMA hands over LTE UEs to WCDMA in case of high load in LTEIntra-LTE Inter-Mode Handover enabled handover between FDD and TDDMobility Control at Poor Coverage introduces a search zone to improve mobilty performance at poor coverageMulti-operator RAN enables the same RAN to be shared by two operatorsS-GW relocation at X2 Handover allows change of S-GW during X2 HandoverSingle Radio Voice Call Continuity (SRVCC) Handover to GERAN enables handover of packet switched LTE voice bearers to circuit switched domain in GERAN. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality Carrier aggregation provides significantly increased peak UE throughput, as it can provide a peak throughput equivalent to a contiguous carrier of the same bandwidth as the aggregate of the individual carriers. Dual downlink, aggregated Inter-band, Intra-band, contiguous and non-contiguous.L13B Carrier Aggregation can nearly eliminate the inefficiencies that normally occurs with multiple independent carriers.Carrier aggregation in L13B provides the ability to support carrier aggregation with the following characteristics:Single uplinkUp to 20 MHz aggregate across the two carriersStatically configured secondary component carriersDynamic activation/deactivation of secondary component carriersSame Transmission Mode (TM) on both carriersIntra LTE Mobility

LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The typical inter-band deployment of L13B is assumed to correspond to scenario #2.The not optimized in scenario #2-5 refers to that we do not configure SCells based on measurements, but only on MOM configuration. For the SCell which is configured and activated; if the UE turns out to be out of coverage on this SCell, it will become deactivated. Since it is only possible to configure a certain cell with one SCell candidate, the deployment scenarios #3 and #4 are not so suitable for the L13B product. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The Combined Cell feature allows two or more Sector Carriers to be operated as a single cell. On the downlink, the data is copied onto all the radio units belonging to the combined cell. On the uplink, the best radio units are selected for reception.The benefits are:- Enable seamless mobility between sectors belonging to the same cell - Coverage is improved between sectors belonging to the same cell - Improved cell edge bit rate between sectors belonging to the same cell at low load

LTE L13B Features and Functionality Up to four Sector Carriers can be combined into one cell. The downlink channels (PDSCH and PDCCH) will experience a Single Frequency Network gain since they are transmitted from all Sector Carriers.In downlink, Co-ordinated Multiple Transmission (CoMP) is achieved by selectively muting non-contributing Sector Carriers.In uplink CoMP is achieved by combining the two strongest Sector Carriers. LTE L13B Features and Functionality 2013-05-16 * LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality Enhanced PDCCH link adaptation introduces a dedicated link adaptation capability for PDCCH. This allows the eNodeB to control the number of CCEs to be used in PDCCH allocations to be optimized for a specific PDCCH BLER target, rather than using a fixed offset from the PDSCH link adaptation. PDCCH SINR is adjusted based on PDCCH reception success/failure.It is expected that this will significantly increase the number of UEs that can be scheduled per TTI, as it relates to PDCCH usage. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The Enhanced PDCCH Link Adaptation uses a new PDCCH outer loop:Separate PDCCH outer loop will be implemented. It is based on PDCCH reception success/failure (eNodeBs perception). eNodeB considers a UL grant is received successfully if the corresponding PUSCH transmission is detected. It is lost otherwise.Similarly, eNodeB considers a DL assignment is received successfully if a valid HARQ-ACK signal is detected. If eNodeB cant detect a HARQ-ACK signal, it considers the DL assignment is lost.PDCCH SINR is adjusted based on PDCCH reception success/failureOther Improvements include:The transmission rank is taken into account when mapping wideband CQI to PDCCH SINR

LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The Multi-target RRC Connection Re-establishment feature allows the UE to re-establish RRC connection in serving or any cell in neighbor list in case of radio link failure.The feature minimizes outage time in case lost connection and avoids dropped telephony call in case of successful RRC connection re-establishment.The purpose with this feature is to re-establish the RRC connection in case of radio link failure, which leads to reduced drop rate for e.g. VoLTE calls. In case of radio link failure the UE will do an RRC connection setup based on the "RRCConnectionReestablishment" procedure. The re-establishment request will be accepted by the serving cell and the data transfer will continue. The procedure will not generate any load in the MME as no signaling over S1 is done. A VoIP call will not be disconnected due to a re-establishment, which would be the case if normal RRC connection request was used.Re-establishment is supported in serving cell when no other RRC procedure is ongoing. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality In this picture, we can see that without this feature, there is an interruption if Radio Link Failure (RLF) occurs, since the UE is released and goes into Idle mode. A voice call will be reestablished by the used dialing again.With this feature, the UE stays connected even at Radio Link Failure and the voice call continues without interruption. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality CS Fallback to 1x provides support for single radio LTE-CDMA devices that require network-based CS Fallback capabilities.This feature supports the 3GPP Rel 8 feature CS Fallback to CDMAThis feature enables single radio terminals to benefit from CS Fallback to CDMADevices initially deployed in LTE-CDMA networks were primarily dual radio devices. Later devices support network-based CSFB, having a single Tx/Rx capability, and relying on tunneling in the LTE network to interact with the CDMA network. These devices have lower cost, fewer design constraints, and better battery performance than dual radio devices.

LTE L13B Features and Functionality The 3GPP Rel 8 CS Fallback functionality includes: 1xRTT CS registration over EPS1x CSFB for Voice (blind Release with Redirection to 1x CDMA)Mobile Originated/Mobile Terminated calls from Idle or Active Mode UEMobile Originated/Mobile Terminated SMS over S102 (without fallback)Emergency call 911MME Relocation IWS/MSC tunnel relocation1x 3G parameters and SIB8 Configuration ManagementCSFB Performance Measurements/KPI and alarmsLTE L13B Features and Functionality 2013-05-16 * LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality Enhanced CS Fallback to CDMA 1x feature corresponds to Rel 9 RwR-based CSFB which improves the call setup time by allocating traffic channels in target system prior to handover, using Universal Handoff Redirection Message (UHDM) from the target system.

LTE L13B Features and Functionality The Enhanced CS Fallback to CDMA 1x feature supports the 3GPP Rel 9 functionality:Using Universal Handoff Redirection Message (UHDM)1x CSFB measurement support1x CSFB for Voice (Mobility from EUTRA with UHDM to 1x CDMA)Mobile Originated/Mobile Terminated calls from Idle or Active Mode UELTE L13B Features and Functionality 2013-05-16 * LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The load in the LTE cell is monitored and in case of load above a threshold UEs are moved to WCDMA to offload the LTE cell. The load measure is the same as for Inter-frequency load balancing.Capacity in WCDMA may be used to manage high load situations in LTE. User experience is preserved when capacity in LTE is not high enough. This leads to improved end-user experience and improved utilization of MBB capacity LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The load in LTE cell is calculated at regular intervals and compared with an operator configured threshold. If the load is above the threshold a number of UEs are selected and configured with event B1, that is, searching for a good enough WCDMA neighbor. The selection of UEs for offload is random. Neighbor list is the same as for mobility. The threshold in B1 shall be configured to be high enough to guarantee good user experience if the user is moved to WCDMA.LTE is implicitly informed about the load in WCDMA LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The Intra-LTE Inter-Mode Handover feature supports handover between LTE-FDD and LTE-TDD cells and activates ANR between LTE-FDD and LTE-TDD. Handover between LTE-FDD and LTE-TDD shortens the interruption time and makes it possible to move Voice over IP calls between LTE-FDD and LTE-TDD.

LTE L13B Features and Functionality LTE L13B Features and Functionality *Mobility Control at poor Coverage:In L13B, there is a possibility to use two bad coverage thresholds, one inner- or search threshold and one outer- or critical threshold. When the UE goes into the search zone between these thresholds, it starts searching for alternative frequencies/RATs for possible handover or Release with redirect (RwR). If the search timer expires, do blind RwR. When the UE passes the outer critical threshold, a blind Release with Redirect (RwR) to the highest priority frequency/RAT or a blind handover is triggered. If the UE has at least one QCI1 bearer, a Release with Redirect is never done.2013-05-16 LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The S-GW Relocation at X2 Handover feature allows for change of Serving Gateway (SGW) at X2 handover. The feature allows for network topologies with smaller SGW areas than MME areas.

LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality At X2 handover the target eNodeB is prepared to receive a new GTP end-point when the S1 message PATH SWITCH REQUEST ACKNOWLEDGE is received. The new endpoint will be used instead of the endpoint transferred over X2. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The SRVCC Handover to GERAN feature provides the eNodeB functionality to support Single-Radio Voice Call Continuity towards GSM. SRVCC allows Voice over LTE calls, that have been established on LTE, to seamlessly handover to GSM Circuit Switched bearer when the mobile is transitioning out of LTE coverage.This enables operators to provide GSM coverage for VoLTE services, without the need for full LTE coverage.

LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The Multi-operator RAN (MORAN) feature allows two operators to share the same RBS with dedicated spectrum per operator. Each spectrum is managed by an eNodeB per operator. The spectrum used per operator must fit within the IBW of the radio unit.

LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality Various possibilities on how network elements may be shared are shown. Multi Operator RAN is one of the options.The Multi Operator RAN feature is based on the possibility to connect two digital units (DUs) to the radio unit, in the same way as done in the multi-standard RBS. Each operator's EPC is connected, via S1, to one DU. Each DU will act as an independent eNodeB. Different enabling of licenses is possible. LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **The L13B new optional feature for Services and RAN Management include:Advanced Cell Supervision LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality One of the problems that is difficult to detect in the radio access networks, is when cells seem to work but in reality they do not carry any traffic. This situation is often called sleeping cells, and is difficult to detect as there are no alarms from these cells.The Advanced Cell Supervision (ACS) has been introduced to detect sleeping cells much earlier. It provides an automatic and fast solution for detecting and correcting sleeping cells. LTE L13B Features and Functionality *2011-10-19 * *LTE L13B Features and Functionality 2013-05-16 The Advanced Cell Supervision algorithm may be divided into three steps: Monitor, Recovery and Report.ACS uses independent detectors to figure out when a fault situation is suspected. Examples of detectors are: Received preambles but no RRC Connection and no cell bit rateMobile Originating Data RRC Connections but no cell bit rateRA Msg 3 but no RRC Connection Setups/cell bitrate.Sudden change of RRC ConnectionsNo PDCP traffic for X secondsCounter values are checked by the RBS in a preconfigured time against pre set thresholds for the cell to be suspected of being faulty. The thresholds are configurable.The RBS then gets into a recovery mode. Recovery mode could include automatic locking and unlocking of the suspected cell. If the fault is not cleared, then reporting of the faulty situation is done in the form of an alarm. A MAJOR alarm is issued in the RBS. The alarm points out suspected cell, which detector that fault-marked the cell and the recovery action that was taken. The alarm is forwarded to the OSS-RC as well. There are Performance Management counters and events that record the faulty cell situation, and if the self-recovery was successful.

LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **The L13B new and enhanced optional features for Transport Network Functionality includes:Egress IP Traffic Shaping IEEE1588 Frequency Synchronization Real-Time Security Event Logging.Synchronous EthernetLPPA Support for Observed Time Difference of Arrival (OTDOA) IP and SCTP Transport PM enhancements

LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality IP Traffic Management provides support for the operator to shape traffic in the egress (outgoing) direction at eNodeB to a sustainable rate and maximum burst size.The Egress Traffic IP shaping was introduced in L13A; In L13B it has been enhanced with more configuration options, and supports DUS also.The benefit of this feature is that operators with an under-provisioned backhaul or backhaul with poor or no Quality of Service handling will be able to control the bandwidth on the transport network by creating artificial bottlenecks in the egress direction at the eNodeB.

LTE L13B Features and Functionality In this diagram, the path of the traffic through the Digital Unit (DU) in the egress direction is shown.The QCI is mapped on to the DSCP in the application layer. With the default settings the DSCP are grouped into five queues, although it is possible to have up to eight such queues.The queue characteristics are configurable with different queue depths and weights. Packet dropping mechanism (RED or tail-drop) and thresholds are configurable per queue. The scheduler will now schedule the traffic out from various queues.It is possible to control, with configuration parameters, if strict priority and/or weighted priority should be used.Before leaving the DU, the shaper is applied on each queue. It is to control the throughput from each queue with parameters like Committed Information Rate (CIR) and Committed Burst Size (CBS) .From an operation point of view, there are Performance Management counters that record number of packet discards, transmitted packets/octets and dropped octetsper queue.As demonstrated here, if the IP network outside of the RBS is under-dimensioned, or does not support DSCP based traffic prioritization to maintain a good Quality of Service for various delay sensitive traffic, then the feature IP traffic shaping could be used to prioritize the rate-control the traffic leaving the RBS.LTE L13B Features and Functionality 2013-05-16 * LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality The 1588v2/PTP Frequency Synch feature was introduced in L12 in L13B it has been enhanced to support the DUS.The 1588v2/PTP Frequency Synch feature provides the capability to recover frequency synchronization at the eNodeB from a PTP Grand Master in the network. The feature uses packet-based synchronization and the Precision Timing Protocol (PTP). The transport network cloud between the eNodeB and the PTP grandmaster clock is transparent to this synch solution. There are some delay variation requirements that must be met by the transport network. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality Network Elements provide logs of security related information of various qualities today. To improve the identification and reaction time of a potential security breach, a common architectural framework is needed to capture and report events across all network elements. Ericssons LTE RBSs have been providing security event logs. The logs are kept persistent on the RBSs and are looked at on a need basis. From L13B, the RBS can work as an event client, which then forwards these events to a centralized log server. These "security related events" are detected in the RBS and reported in a secure way in real-time. This feature will help operators improve their network security by providing early warnings. It allows operators to implement mitigation controls to reduce the effect of attacks from outside parties. In some countries, it might even be a government requirement or a regulatory commitment to be informed of security breaches in real time. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality Synchronous Ethernet provides an alternative frequency synchronization solution to the already supported NTP (Network Time Protocol), PTP (Precision Time Protocol) and GPS options. It works on the physical layer, and is thus immune to problems with Packet Delay Variation (PDV) that can be an issue for the packet-based synchronization solutions, NTP and PTP. The synch reference has to be traceable to a Primary Reference Clock (PRC), and all the switches between the PRC and the eNodeB should support the Synchronous Ethernet solution.It should be noted that the Synchronous Ethernet in L13B is supported only on the optical interface of the DUS.

LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality Based on the primary reference signals from various eNodeBs, a UE may calculate the Observed Time Difference of Arrival (OTDOA) and send the information to the positioning server in the LTE network. It uses LTE Positioning Protocol (LPP) for the message transfer. But what if UE does not support LPP? From L13B, using the LPP Annex (LPPa) protocol, which was released in 3GPP Release 9, the eNodeB can send cell information to the positioning server to complement the OTDOA sent by the UE. LTE L13B Features and Functionality 2013-05-16 *LTE L13B Features and Functionality In this diagram you see the LPP Annex (LPPa) implementation, compared to the LPP.The LPPa is carried over the control plane via the MME, i.e as a part of the S1AP protocol stack. The MME will forward the LPPa further to the Evolved Serving Mobile Location Center (E-SMLC). Besides the OTDOA sent by the UE, the LPPa will also carry the cell information from the eNodeB. Some examples are shown:Of course, the MME has to support the LPPa protocol for the OTDOA support to get the cell information. This robust control plane implementation to get the cell data for OTDOA support means that the location server can provide location information. Cell data via O&M procedures are not necessary! LPPa support also means that the UEs that do not support LPP can still be located by the SMLC.

LTE L13B Features and Functionality In the L13 B enhancement of IP and SCTP related performance management counters, the DUL20 will also support capabilities like: ICMPv6 counters SCTP counters per SCTP association, allowing capability to monitor the state and collect performance data for each individual S1-MME and X2-C interfaceThese counters include incoming/outgoing packets, discarded/delivered control and data chunks, and the number of seconds the application did not have access to the SCTP association.An attribute to manage the number of hours an SCTP Association is allowed to stay in the disabled state before it is automatically deleted by the systemThese counters and capabilities were already supported by DUS based eNodeBs.Besides, in L13B, there are also new volume counters per DSCP providing number of bytes and number of packets that are sent and received over a specific configurable interval per DSCP and per IP interface.These enhancements allow operator to monitor the quality of the signaling connections and the volume of the traffic much better.*LTE L13B Features and Functionality 2013-05-16 LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **More Information LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **More information on the LTE L13B Release can be found in CPI Store and in the Product Catalogue. Click next to continue LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 * *Summary LTE L13B Features and Functionality LTE L13B Features and Functionality 2013-05-16 **As you have now been shown the features and functionality in this LTE 13B system release consists of both basic and optional features. Some of these features are new and some have been enhanced from previous release. The LTE L13B release is all about customizing, enhancing the network, and improving the end-user experience. LTE L13B Features and Functionality Thank You!LTE L13B Features and Functionality 2013-05-16 *