NSN-RL50 New Features

Nokia Solutions and Networks LTE RAN

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LTE RAN Release RL50 New Features

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The information in this document is subject to change without notice and describes only the product defined in the introduction of this documentation. This documentation is intended for the use of Nokia Solutions and Networks´ customers only for the purposes of the agreement under which the document is submitted, and no part of it may be used, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Solutions and Networks. The documentation has been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using it. Nokia Solutions and Networks welcomes customer comments as part of the process of continuous development and improvement of the documentation. The information or statements given in this documentation concerning the suitability, capacity, or performance of the mentioned hardware or software products are given “as is” and all liability arising in connection with such hardware or software products shall be defined conclusively and finally in a separate agreement between Nokia Solutions and Networks and the customer. However, Nokia Solutions and Networks has made all reasonable efforts to ensure that the instructions contained in the document are adequate and free of material errors and omissions. Nokia Solutions and Networks will, if deemed necessary by Nokia Solutions and Networks, explain issues which may not be covered by the document. Nokia Solutions and Networks will correct errors in this documentation as soon as possible. IN NO EVENT WILL NOKIA SOLUTIONS AND NETWORKS BE LIABLE FOR ERRORS IN THIS DOCUMENTATION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES,SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA,THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT. This documentation and the product it describes are considered protected by copyrights and other intellectual property rights according to the applicable laws. NSN is a trademark of Nokia Solutions and Networks. Nokia is a registered trademark of Nokia Corporation. Other product names mentioned in this document may be trademarks of their respective owners, and they are mentioned for identification purposes only. Copyright © Nokia Solutions and Networks 2013. All rights reserved.


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Table of Contents 1 2 3

Introduction ......................................................................................................................... 5 History ................................................................................................................................ 6 BTS Site Solution ................................................................................................................ 7 3.1 FRHC Flexi RF Module 6TX 2600................................................................................ 7 3.2 FRMC Flexi RF Module 6TX 800 ................................................................................. 8 3.3 240 W Multiradio Remote RF ......................................................................................10 3.4 GNSS Receiver FYGB ................................................................................................11 3.5 Cell Bandwidth - 3 MHz ..............................................................................................12 3.6 Cell Bandwidth - 1.4 MHz............................................................................................14 3.7 Multiradio System Module extended LTE configurations .............................................15 3.8 FHEB Flexi RRH 2TX 1800.........................................................................................17 3.9 FRPA Flexi RF Module 6TX 700 .................................................................................18 3.10 FRPB Flexi RF Module 6TX 700 .................................................................................19 3.11 FXDB Flexi RF Module 3TX 900 .................................................................................20 3.12 RF sharing LTE-GSM with 3rd generation System Module for LTE.............................22 3.13 FRHF Flexi RF Module 6TX 2600 ...............................................................................23 3.14 FRHE Flexi RRH 4TX 2600 ........................................................................................24 3.15 RF sharing WCDMA-LTE ............................................................................................25 3.16 LTE Dual carrier operation within one RF band...........................................................27 3.17 4-way RX diversity ......................................................................................................29 3.18 FRHD Flexi RRH 4TX 2600 ........................................................................................31 3.19 FXDA Flexi RF Module 3TX 900 .................................................................................32 3.20 FBBA Flexi Capacity Extension Sub-Module...............................................................34 3.21 FRGT Flexi 3-sector RF Module 2100.........................................................................35 3.22 FRGS Flexi 3-sector RF Module 2100 ........................................................................36 4 Transmission .....................................................................................................................38 4.1 Transport Separation for RAN Sharing........................................................................38 5 Radio Resource Management and Telecom ......................................................................40 5.1 Mobility .......................................................................................................................40 5.1.1 RSRQ based cell reselection ...............................................................................40 5.1.2 TDD - FDD handover ...........................................................................................41 5.1.3 Inter eNode B IF Load Balancing .........................................................................42 5.1.4 RSRQ based redirect ...........................................................................................44 5.1.5 Open access home eNode B mobility ..................................................................44 5.1.6 Idle mode mobility load balancing ........................................................................46 5.1.7 Intra cell handover ...............................................................................................47 5.2 Coverage, capacity and peak rates .............................................................................48 5.2.1 Downlink carrier aggregation - 20 MHz ................................................................48 5.2.2 FDD Supercell .....................................................................................................51 5.2.3 DL adaptive closed loop MIMO (4x2) ...................................................................52 5.2.4 Flexible UL Bandwidth .........................................................................................53 5.2.5 TTI bundling .........................................................................................................55 5.2.6 IRC for 4 RX paths ...............................................................................................56 5.3 QoS, services and end user experience......................................................................57 5.3.1 Active Queue Management..................................................................................57 5.3.2 Smart DRX ..........................................................................................................57


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5.4 Basic LTE call handling and interworking ....................................................................58 5.4.1 ZUC security algorithm ........................................................................................58 6 Operability..........................................................................................................................60 6.1 Network Monitoring and Maintenance .........................................................................60 6.1.1 Event-triggered symptom data collection and provisioning ...................................60 6.1.2 Basic Layer3 Data Analyser (L3DA)for LTE .........................................................61 6.2 Configuration Management .........................................................................................64 6.2.1 Automatic cell combination assignment for Carrier Aggregation...........................64 6.2.2 System Upgrade with Backward Compatibility .....................................................65 6.2.3 Cell Specific neighbor relation / PCI handling.......................................................67 6.2.4 InterRAT neighbor relation Optimization (LTE, UTRAN, GERAN) ........................70 6.2.5 RACH Optimization ..............................................................................................71 6.3 O&M Security..............................................................................................................74 6.3.1 Multi-layered Certificate Authorities......................................................................74 6.4 OMS specific features .................................................................................................76 6.4.1 iOMS Certificate update and revocation support ..................................................76 6.4.2 Remote SW-management and data backup/restore support for iOMS .................78


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1 Introduction This document provides the list of feature candidates for the LTE Radio Access System Release RL50. The scope of the document includes evolved NodeB (eNB) and Transmission. The LTE is managed with the NetAct Operations Support System (OSS) and its interfaces with Packet Switched (PS) Core Networks (CN) over the S1 interface. Operation Mediation Subsystem (OMS) is used to aggregate O&M traffic and mediate data format towards the NetAct. OMS is usually located at the NetAct. The LTE Flexi Multiradio BTS functionality is implemented in compliance with the 3GPP interface specification baseline 3GPP Rel-11 March 2013. There may be changes to the final solutions due to the final release definition process and 3GPP's standardization changes. This document covers only Nokia Solutions and Networks LTE RAN level issues and the high level dependencies for the Core Network, WCDMA, GSM system and Mobile Station support. The Flexi Multiradio BTS functionality may not work if the support in one or multiple other network elements, e.g. eNode Bs, UEs, MME, S-GW, eSMLC, MSC, BTS, Node B etc is not provided. The UE dependency is outlined in the SW dependencies field ‘UE’. The other RAT dependencies are outlined in the field ‘dependencies to other RATs’. The core network dependencies to EPC are outlined in the fields ‘MME’ and ‘S-GW’. In the fields ‘BTS Flexi’ for FSMD/E and ‘BTS Flexi 10’ for FSMF family the support of the feature is indicated with release name; blank means not supported. In the field ‘HW requirements’ it will be indicated if the feature requires additionally a specific HW in RAN LTE portfolio. It is left blank if the feature describes a HW item itself or has no specific requirements. The Flexi Multiradio BTS functionality may rely on the activation of other eNode B features. This feature interdependency is outlined in the field ‘interdependencies between Features’. IOTs with other network elements, e.g. eNode Bs, MME, S-GW, eSMLC, MSC, BTS, Node B etc., UEs or applications have to be conducted well in advance in order to ensure the interoperability with other network elements on protocol level. Such testing need to be agreed with NSN IOT department according IOT standard process. 3GPP has not defined the interworking of algorithms, i.e. KPI may depend on multi-vendor scenarios. The actual performance of the feature in field will depend on several external factors e.g. radio condition, antenna configuration, UE location, UE speed, cell load, transport network dimensioning, etc. In ‘SW Sales Information’ the optional Sales Items are indicated with ‘ASW’ (Application SW). ‘ASW NetAct’ refer to Sales Items defined within NetAct. Basic SW items are indicated with ‘BSW’. LTE RAN SW is using SW Asset Monitoring as licensing approach. This document is NON BINDING.


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2 History Version Date V1.0 20.12.2013

Comments First version for RL50 New Features at C5 milestone

Version 1.0


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3 BTS Site Solution 3.1 FRHC Flexi RF Module 6TX 2600 Unique ID: 1066 Short Description: FRHC Flexi Multiradio RF Module 6TX 2600 MHz has 6 Power Amplifiers enabling it to support one, two or three sectors with up to 40+40 W 2TX MIMO output power at the BTS antenna connectors. Size and visual outlook is similar to the existing Flexi RF Modules. The environmental protection class is IP65. From HW point of view it can be used as powerfull one sector RRH with max 4x40 W with 4TX MIMO and 4RX. 4TX MIMO and 4RX are separate SW features. Benefits for the Customer: 6TX 40 W RF Module general benefits: • the most cost and size and weight optimized 3-sector 2TX MIMO BTS site • industry leading RF integration level • 3 sector 2TX MIMO RF in one outdoor IP65 box • ambient temperature -35... +55 C • Smallest size and weight • Smallest power consumption and OPEX • Can be used as feederless site as well with one DC and 1...2 optical cables • 3-sector 2TX div and 2TX MIMO BTS can be build using only one 3-sector RF Module • one 3-sector Module is more cost effective than 3 x RF Head in feederless installations´ • Less weight • Less wind load • 1/3 of DC and 2/3 of optical cabling compared to 3-sector site with Remote RF Heads (RRH) • easier installation • less visual impact • HW prepared to support one sector 4x40 W 4TX MIMO with 4RX Functional Description: FRHC supports 3GGP band 7 at 2600 MHz lowest 55 MHz. With 6 x 40 W output Flexi RF Module, IP65. • operation band DL 2620 - 2675 MHz, UL 2500 - 2555 MHz • DL & UL Intermediate bandwidth 40 MHz (min) • 3 U high with Flexi platform mechanics. Basic LTE Configurations: • 1, 1+1 or 1+1+1 LTE cells @ max 20 MHz LTE bandwidth and 2TX MIMO / 2RX • 8, 20 or 40 W 1TX mode per sector (by branch activation SW licenses) • 8+8, 20+20 or 40+40 W 2TX mode per sector (by branch activation and MIMO SW licenses) • 1, 2 or 3 sectors max 40 + 40 W 2TX MIMO/2RX • HW prepared for 1 sector 4x40 W 4TX MIMO/4RX FRHC can be used in Feederless site (optical and DC cable up to 200 m).


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HW Requirements: no specific HW requirements Interdependencies between Features: . RL Software Dependencies: BTS LTE Flexi Release

RL50

LBTS5.0

SW Sales Information: BSW/ASW BSW

BTS Flexi 10

NetAct

OMS

-

Licence Control in Network Element -

MME

SAE GW

UE

-

-

3GPP R8 UE capabilities

Licence Control Attributes -

3.2 FRMC Flexi RF Module 6TX 800 Unique ID: 1067 Short Description: FRMC Flexi Multiradio RF Module 6TX 800 MHz has 6 Power Amplifiers enabling it to support one, two or three sectors with up to 40+40 W 2TX MIMO output power at the BTS antenna connectors. Size and visual outlook is similar to the existing Flexi RF Modules. The environmental protection class is IP65. FRMC is tuned for operators having the highest 20 MHz RF band on 800 MHz fulfilling the new regulator requirements in order to minimize the interference to TV broadcasting systems. From HW point of view it can be used as powerfull one sector RRH with max 4x40 W with 4TX MIMO and 4RX. 4TX MIMO and 4RX are separate SW features. Benefits for the Customer: 6TX 40 W RF Module general benefits: • the most cost and size and weight optimized 3-sector 2TX MIMO BTS site • industry leading RF integration level • 3 sector 2TX MIMO RF in one outdoor IP65 box • ambient temperature -35... +55 C • Smallest size and weight • Smallest power consumption and OPEX • Can be used as feederless site as well with one DC and 1...2 optical cables • 3-sector 2TX div and 2TX MIMO BTS can be build using only one 3-sector RF Module • one 3-sector Module is more cost effective site solution than 3 x RF Head in feederless installations´ • Less weight • Less wind load


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• 1/3 of DC and 2/3 of optical cabling compared to 3 sector site with Remote RF Heads (RRH) • easier installation • less visual impact • HW prepared to support one sector 4x40 W 4TX MIMO with 4RX Functional Description: FRMC supports 3GGP band 20 at 800 MHz highest 20 MHz band. 6 x 40 W output Flexi RF Module, IP65. 3 U high with Flexi platform mechanics. Basic LTE Configurations: • 1, 1+1 or 1+1+1 LTE cells @ max 20 MHz LTE bandwidth and 2TX MIMO / 2RX • 20 MHz DL BW; downlink 801-821 MHz and 30MHz UL BW; uplink 832-862 MHz • RX filter BW 30 MHz, 832 - 862 MHz • 8, 20 or 40 W 1TX mode per sector (by branch activation SW licenses) • 8+8, 20+20 or 40+40 W 2TX mode per sector (by branch activation and MIMO SW licenses) • 1, 2 or 3 sectors max 40 + 40 W 2TX MIMO/2RX • HW prepared for 1 sector 4x40 W 4TX MIMO/4RX One FRMC can be used in Feederless site (optical and DC cable up to 200 m) instead of three RRHs to support 1+1+1 with 2TX MIMO. HW Requirements: no specific HW requirements Interdependencies between Features: . RL Software Dependencies: BTS LTE Flexi Release

RL50

LBTS5.0


BTS Flexi 10

NetAct

OMS

-


MME

SAE GW

UE

-

-




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3.3 240 W Multiradio Remote RF Unique ID: 1095 Short Description: 240 W remote one sector RF solution is possible with one hih power Flexi Multiradio RF Module supporting 3x 80 W output power. Flexi Multiradio RF Module is configured to support max. 160 W for LTE with 2TX MIMO&Max. 80 W for GSM/EDGE. Benefits for the Customer: Future proof high capacity multiradio remote RF solution for different site installations. • standard Flexi Multiradio RF Module used • outdoor IP65 , -35 ... +55 C • 240 W output per sector • for LTE max 160 W with 2TX MIMO support • for GSM/EDGE max 80 W and up to 6 TRXs • full TX and RX 3GPP RF bandwidth support • more flexible MORAN support (MORAN separate SW feature) • 240 W for two MORAN operators Functional Description: One Flexi Multiradio RF Module supports 80 W output power for three antenna connectors. It enables flexible configurations and free power allocation to radio technology, examples: One RF Module 3x 80 W installed for one sector: • LTE one cell up to 80+80 W 2TX MIMO and GSM 1 TRX / 80 W • LTE one cell up to 80+80 W 2TX MIMO and GSM 2 TRX / 40 W • LTE one cell up to 80+80 W 2TX MIMO and GSM 6 TRX / 13 W Up to three RF Modules for up to three sector Multiradio BTS site resulting to configuration: • LTE 1+1+1 up to 80+80 W 2TX MIMO and GSM 6+6+6 TRX /13 W • with four antenna feeders per sector one 4-port antenna or two X-pol antennas can be used. • with two antenna feeders Flexi Multiradio Combiner (MRC) or diplexers can be used • configuration is Remote, i.e. RF Module typically located close to antenna(s). HW Requirements: FXEB Flexi RFM 1800 MHZ 3x80 W or other 80 W RF modules; Interdependencies between Features: LTE447 'RF sharing GSM-LTE' required. RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0

BTS Flexi 10

NetAct -

OMS

MME -

SAE GW -

UE n/a

Nokia Solutions and Networks LTE RAN SW Sales Information: BSW/ASW BSW

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3.4 GNSS Receiver FYGB Unique ID: 1125 Short Description: This feature will add FYGB support in FSM and BTS Site Manager (as new BTS Optional Item) to already supported FYGA. The FYGB is able to plug-and-play into the existing solution deployment scenario of the FYGA. Benefits for the Customer: - Improves capability to use two operationally available global navigation satellite systems (GNSS) - Decreases the probability of losing satellite coverage in deep-urban canyon BTS site deployments - Continue to move froward with the market and the available GNSS coverage - Provide GLONASS support in those systems using GPS so that national requirements (i.e. Russia) can be covered. Functional Description: The standalone FYGB GNSS receiver is an optional synchronization solution. It uses GNSS (Global Navigation Satellite System) as the primary source for frequency and time synchronization providing the 1PPS input signal to the FSM. GNSS is defined as GPS, GLONASS and also Beidou and Galileo (when operationally available), however the FYGB only supports GPS and GLONASS. This feature provides capability for: · Plug-and-play FYGB to FSM (new BTS Optional Item) · Continue BTS Site Manager support of FYGA (already exists as BTS Optional Item) · Plug-and-play to BTS Site Manager to support FYGB The FYGB can reuse the current set of FYGA equipments for installation: FYMA GPS Mounting Kit HDMI-based: FTSE GPS Cable Assembly, 30m FTSH GPS Cable Assembly, 100m MDR-26 based: FYHA GPS Cable Set, 30m FYHB GPS Cable Set, 100m FYEA GPS Surge Protector Kit (optional)


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Through the plug-and-play integration of the FYGB, all established FYGA functionality will be met and the FYGB will operate seamlessly with all existing FYGA solution deployments HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0 SW Sales Information: BSW/ASW BSW

BTS Flexi 10

NetAct

OMS

MME

-


-

SAE GW -

UE


3.5 Cell Bandwidth - 3 MHz Unique ID: 116 Short Description: 3 MHz LTE cell RF bandwidth according to 3GPP specified bit rates and supported UE capability. Benefits for the Customer: The operator can deploy LTE cells with 3 MHz bandwidth. Functional Description: The Flexi Multiradio BTS supports a cell bandwidth of 3 MHz. The following special settings are applied for 3 Mhz cells: • number of PUCCH PRBs: set to 2 • number of OFDM symbols for PDCCH: set to 3 SIB size and paging record limitations are applied. HW Requirements: The following frequency bands / RF modules are supported: band 2: FXFA band 3: FHEB, FXEB band 5: FXCARF Sharing with GSM is supported on band 3. The same baseband configuration rules as for 5 MHz are applied. Interdependencies between Features: The following features are not supported for 3 MHz cells: LTE4 RAN Sharing LTE786 Flexible uplink bandwidth LTE10 Support of EPS bearers for conversational voice


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LTE11 Robust header compression LTE872 SRVCC to WCDMA LTE873 SRVCC to GSM LTE495 OTDOA LTE619 Interference aware scheduling LTE46 Channel aware scheduling LTE496 Support of QCI 2, 3 and 4 LTE587 Multiple GBR bearers per UE LTE497 Smart admission control LTE534 ARP based admission control LTE572 IMS emergency sessions LTE1387 Intra-eNode B IF load balancing LTE1170 Inter eNode B inter-frequency load balancing LTE907 TTI bundling LTE568 DL adaptive closed loop MIMO 4x2 LTE980 IRC for 4 RX paths LTE72 4-way RX diversity LTE435 RF sharing LTE-WCDMA WCDMA interworking (LTE562, LTE762) LTE56 Handover to WCDMA LTE736 CS Fallback to UTRAN LTE616 Usage based PDCCH adaptation LTE471 LTE Dual carrier operation with in one RF band CDMA interworking (LTE870, LTE807, LTE426) LTE1073 Measurement based Redirect to UTRAN

RL Software Dependencies: BTS LTE Flexi Release

RL50

-

SW Sales Information: BSW/ASW ASW

BTS Flexi 10

NetAct

OMS

OSS5.5 CD1

Licence Control in Network Element SW Asset Monitoring

MME

SAE GW

UE

-

-

3GPP R8 mandatory



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3.6 Cell Bandwidth - 1.4 MHz Unique ID: 117 Short Description: 1.4 MHz LTE cell RF bandwidth according to 3GPP specified bit rates and supported UE capability. Benefits for the Customer: The operator is able to deploy LTE cells with 1.4 MHz bandwidth. Functional Description: The Flexi Multiradio BTS supports a cell bandwidth of 1.4 MHz. The following special settings are applied for 1.4 Mhz cells: • number of PDCCH OFDM symbols: set to 4 • number of PUCCH PRBs: set to 2 • only time domain scheduling is applied on uplink and downlink with a single user per TTI • Non adaptive HARQ retransmissions are applied for the uplink • SIB size limitations are applied. In the TTI where PRACH is allocated no PUSCH data or PUCCH signaling are admitted, with the only exception of ACK/NACK on PUCCH. HW Requirements: 1.4 MHz is supported for the following frequency band / RF module only: band 2: FXFA band 5: FXCAThe same baseband configuration rules as for 5 MHz cells are applied. Interdependencies between Features: The following features are not supported for 1.4 MHz cells: LTE767 Support of aperiodic CQI reports LTE4 RAN Sharing LTE786 Flexible uplink bandwidth LTE10 Support of EPS bearers for conversational voice LTE11 Robust header compression LTE872 SRVCC to WCDMA LTE873 SRVCC to GSM LTE616 Dynamic PDCCH LTE430 Control channel power boosting LTE495 OTDOA LTE619 Interference aware scheduling LTE46 Channel aware scheduling LTE496 Support of QCI 2, 3 and 4 LTE587 Multiple GBR bearers per UE LTE497 Smart admission control LTE534 ARP based admission control LTE572 IMS emergency sessions LTE442 Network assisted cell change to GSM


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LTE984 GSM redirect with system information LTE447 RF sharing LTE - GSM GSM interworking (LTE562, LTE762) LTE1387 Intra-eNode B IF load balancing WCDMA interworking (LTE56, LTE562, LTE762) CDMA interworking (LTE426, LTE807, LTE870) LTE568 DL adaptive closed loop MIMO 4x2 LTE980 IRC for 4 RX paths LTE72 4-way RX diversity LTE907 TTI bundling LTE435 RF sharing with WCDMA LTE13 Rate Capping RL Software Dependencies: BTS LTE Flexi Release

RL50

-


BTS Flexi 10

NetAct

OMS

OSS5.5 CD1


MME

SAE GW

UE

-

-



3.7 Multiradio System Module extended LTE configurations Unique ID: 1247 Short Description: Extended LTE configurations with Flexi Multiradio System Module FSMF with one optional capacity extension sub-module FBBA. Benefits for the Customer: Extended System capacity Flexi Multiradio System Module configurations (System Module FSMF with one optional capacity extension sub-module FBBA) can support bigger cell and sector configurations and downlink and uplink performance enhancement features like 4TX MIMO and 4RX diversity. Functional Description: The following LTE FDD cell configurations are supported with one Flexi Multiradio System Module FSMF with one optional capacity extension sub-module FBBA: • Supported RF Modules and RRHs and detailed configurations are listed in separate LTE RL release user documentation


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HW configuration: FSMF + one FBBA • maximum 6-cell configurations with maximum 20 MHz cell bandwidth with 2TX MIMO and 2RX diversity • 6 cell/6 sector configuration with one RF band • two 3 sector BTS configurations with two different RF bands (dual band LTE configuration) OR • maximum 3-cells one RF band configurations with 15 or 20 MHz cell bandwidth with 4TX MIMO and/or 4 RX diversity • LTE569 DL adaptive closed loop MIMO 4x2 SW feature is needed in for downlink capacity improvment • LTE980 IRC for 4 RX paths or LTE72 4-way RX diversity (MRC) SW feature is needed for uplink performance improvment OR • maximum 12-cell configuration with 10 MHz cell bandwidth with 2TX MIMO and 2RX diversity • two 6 sector/cell BTS configurations with two different RF bands (dual band) LTE configuration • up to 12 one cell RRH in 3 chains, max. 4 RRHs per chain HW configuration: FSMF • maximum 3-cell one RF band configurations with 5 or 10 MHz cell bandwidth with 4TX MIMO and/or 4 RX diversity • LTE569 DL adaptive closed loop MIMO 4x2 SW feature needed in for downlink capacity improvment • LTE980 IRC for 4 RX paths or LTE72 4-way RX diversity (MRC) SW feature is needed for uplink performance improvement • two 3 sector BTS configurations with two different RF bands up to 10 MHz BW (dual band LTE configuration) HW Requirements: Flexi MR10 BTS Interdependencies between Features: RL Software Dependencies: BTS LTE Flexi Release RL50 SW Sales Information: BSW/ASW BSW

BTS Flexi 10

NetAct

OMS

MME

-


-

SAE GW -

UE n/a



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3.8 FHEB Flexi RRH 2TX 1800 Unique ID: 1262 Short Description: FHEB Flexi Multiradio Remote RF Head (RRH) with 2TX downlink MIMO and 2RX receiver uplink diversity for world market LTE operation at 3GPP band 3. Benefits for the Customer: One sector Flexi Remote RF Head is able to support 2TX MIMO with high output power (2*60W) for hot spot dense urban capacity sites. It enables easy installation outdoors close to antennas thus maximising BTS site capacity and coverage for one sector. Functional Description: FHEB Flexi RRH 2TX 2RX 1800 MHz main features: • 1800 MHz 3GPP band 3 supported • 2x60 W with two power amplifiers • 40 MHz TX RF HW bandwidth and 60 MHz RX BW • Optimized for single sector deployment with 2TX MIMO • one LTE cell with 2TX MIMO up to 20 MHz LTE per sector. • Optical chaining supported by HW (two optical connectors with 6 Gbit/s interfaces) • IP65 with -35 to +50 °C with convection coo ling • external alarms and outputs • AISG2.0 Antenna tilt support with external connector (RS485) Mechanical dimensions (tentative target): • less than 17 liters • less than 15 kg HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release

RL50

LBTS5.0


BTS Flexi 10

NetAct

OMS

-


MME

SAE GW

UE

-

-




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3.9 FRPA Flexi RF Module 6TX 700 Unique ID: 1329 Short Description: FRPA Flexi Multiradio RF Module 6TX 700 MHz has 6 Power Amplifiers enabling it to support one, two or three sectors with up to 40+40 W 2TX MIMO output power at the BTS antenna connectors. FRPA supports lowest 35 MHz sub-band. Size and visual outlook is similar to the existing Flexi RF Modules. The environmental protection class is IP65. From HW point of view it can be used as powerfull one sector RRH with max 4x40 W with 4TX MIMO and 4RX. 4TX MIMO and 4RX are separate SW features. Benefits for the Customer: 6TX 40 W RF Module general benefits: • the most cost and size and weight optimized 3-sector 2TX MIMO BTS site • industry leading RF integration level • 3 sector 2TX MIMO RF in one outdoor IP65 box • ambient temperature -35... +55 C • Smallest size and weight • Smallest power consumption and OPEX • Can be used as feederless site as well with one DC and 1...2 optical cables • 3-sector 2RX div and 2TX MIMO BTS can be build using only one 3-sector RF Module • one 3-sector Module is more cost effective site solution than 3 x RF Head in feederless installations´ • Less weight • Less wind load • 1/3 of DC and 2/3 of optical cabling compared to 3 sector site with Remote RF Heads (RRH) • easier installation • less visual impact • HW prepared to support one sector 4x40 W 4TX MIMO with 4RX Functional Description: FRPA supports lowest 35 MHz sub-band of the new global 3GPP band 28 at 700 MHz . 6 x 40 W output Flexi RF Module, IP65. 3 U high with Flexi platform mechanics. Basic LTE Configurations: • 1, 1+1 or 1+1+1 LTE cells @ max 20 MHz LTE bandwidth and 2TX MIMO / 2RX • 2 x 20 MHz + 1 x 10 MHz, 2 x 15 MHz, 3 x 10 MHz cells also to be supported • Operator sharing supported • TX BW 35 MHz; downlink 758 - 793 MHz • RX BW 35 MHz; uplink 703 - 738 MHz • 8, 20 or 40 W 1TX mode per sector (by branch activation SW licenses) • 8+8, 20+20 or 40+40 W 2TX mode per sector (by branch activation and MIMO SW licenses) • 1, 2 or 3 sectors max 40 + 40 W 2TX MIMO/2RX • HW prepared for 1 sector 4x40 W 4TX MIMO/4RX


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One FRPA can be used in Feederless site (optical and DC cable up to 200 m) instead of three RRHs to support 1+1+1 with 2TX MIMO. HW Requirements: no specific HW requirements Interdependencies between Features: . RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0 SW Sales Information: BSW/ASW BSW

BTS Flexi 10

NetAct

OMS

MME

-


-

SAE GW -

UE


3.10 FRPB Flexi RF Module 6TX 700 Unique ID: 1395 Short Description: FRPB Flexi Multiradio RF Module 6TX 700 MHz has 6 Power Amplifiers enabling it to support one, two or three sectors with up to 40+40 W 2TX MIMO output power at the BTS antenna connectors. FRPB supports highest 30 MHz sub-band. Size and visual outlook is similar to the existing Flexi RF Modules. The environmental protection class is IP65. From HW point of view it can be used as powerfull one sector RRH with max 4x40 W with 4TX MIMO and 4RX. 4TX MIMO and 4RX are separate SW features. Benefits for the Customer: 6TX 40 W RF Module general benefits: • the most cost and size and weight optimized 3-sector 2TX MIMO BTS site • industry leading RF integration level • 3 sector 2TX MIMO RF in one outdoor IP65 box • ambient temperature -35... +55 C • Smallest size and weight • Smallest power consumption and OPEX • Can be used as feederless site as well with one DC and 1...2 optical cables • 3-sector 2RX div and 2TX MIMO BTS can be build using only one 3-sector RF Module • one 3-sector Module is more cost effective site solution than 3 x RF Head in feederless installations´ • Less weight • Less wind load • 1/3 of DC and 2/3 of optical cabling compared to 3 sector site with Remote RF Heads (RRH) • easier installation


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• less visual impact • HW prepared to support one sector 4x40 W 4TX MIMO with 4RX Functional Description: FRPB supports highest 30 MHz sub-band of the new global 3GPP band 28 at 700 MHz. 6 x 40 W output Flexi RF Module, IP65. 3 U high with Flexi platform mechanics. Basic LTE Configurations: • 1, 1+1 or 1+1+1 LTE cells @ max 20 MHz LTE bandwidth and 2TX MIMO / 2RX • 2 x 20MHz + 1 x 10MHz, 2 x 15MHz, 3 x 10MHz cells also to be supported • Operator sharing supported • TX BW 30 MHz; downlink 773 - 803 MHz • RX BW 30 MHz, uplink 718 - 748 MHz • 8, 20 or 40 W 1TX mode per sector (by branch activation SW licenses) • 8+8, 20+20 or 40+40 W 2TX mode per sector (by branch activation and MIMO SW licenses) • 1, 2 or 3 sectors max 40 + 40 W 2TX MIMO/2RX • HW prepared for 1 sector 4x40 W 4TX MIMO/4RX One FRPB can be used in Feederless site (optical and DC cable up to 200 m) instead of three RRHs to support 1+1+1 with 2TX MIMO. HW Requirements: no specific HW requirements Interdependencies between Features: . RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0 SW Sales Information: BSW/ASW BSW

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3.11 FXDB Flexi RF Module 3TX 900 Unique ID: 1422 Short Description: FXDB is Flexi Multiradio RF Module version for 900 MHz able to support one, two or three sectors with maximum 3x80 W output power at the BTS antenna connectors. Can be used as powerfull one sector RRH with maximum 80 W + 80 W 2TX MIMO.Size and visual outlook is similar to the existing Flexi RF Modules. The environmental protection class is IP65.


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Benefits for the Customer: FXDB Flexi 3-sector RF Module 80 W 900 MHz has 35 MHz HW bandwidth support at 3GPP band 8.3-sector 3x 80 W RF Module general benefits: • the most cost and size and weight optimized 3-sector BTS site • industry leading RF integration level • SW configurable radio: the same RF Module for LTE, HSPA+ and WCDMA and GSM/EDGE • up to 3 sectors RF in one outdoor IP65 box • Widest ambient temperature range -35... +55 C • Smallest size and weight • Smallest power consumption and OPEX • Can be used as feederless site as well with one DC and 1...2 optical cables • TX div and MIMO 2TX can be build using two 3-sector RF Modules • RF redundancy option comes as side bonus • One 3-sector Module more cost effective than 3 x RF Head in feederless installations because: • Less weight • Less wind load • typically 1/3 of DC and optical cabling compared to site with Remote RF Heads (RRH) • easier installation • less visual impact • RF Module can be used as powerfull one sector RRH : 60 + 60 W 2TX MIMO with HW prepared for 4RX Functional Description: 3 x 80 W output Flexi Multiradio RF Module, IP65 outdoor.3GPP band 8 supported. 3 U high with Flexi platform mechanics. Basic LTE Configurations: • 1, 1+1 or 1+1+1 LTE cells @ max 10 MHz LTE bandwidth and 1TX/2RX (in 3GGP LTE UE support is max 10 MHz at 900 MHz) • 8, 20, 40, 60 or 80 W mode per sector (by SW licenses) • HW supports 35 MHz BW in multiradio configurations • 1 sector max 80 + 80 W 2TX/2RX MIMO • HW prepared for 1 sector max 80 + 80 W 2TX/4RX MIMO FXDB can be used in Feederless site (optical and DC cable up to 200 m). WCDMA and GSM/EDGE configurations are described in GSM/EDGE and WCDMA release documents. HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies

Nokia Solutions and Networks LTE RAN RL Software Dependencies: BTS LTE Flexi Release

RL50

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3.12 RF sharing LTE-GSM with 3rd generation System Module for LTE Unique ID: 1471 Short Description: RF-sharing LTE-GSM with new 3rd generation System Module (FSMF) on LTE side Benefits for the Customer: Reuse of the existing GSM HW with smaller additional costs to deploy LTE to existing sites Reduced complexity for antennasystem, no external combiners Functional Description: This feature allows RF sharing LTE-GSM with new 3rd generation System Module for LTE. For GSM a 2nd generation System Module (ESMB/ ESMC) is used. The RF sharing configurations as described in LTE447 and LTE1514 are supported with this new System Module as well. The details regarding supported RFM and RRH types, bandwidth / power combinations are defined in document: Flexi Multiradio BTS RF Sharing Released Configurations HW Requirements: FSMF for LTE System Module, ESMB/ESMC for GSM System Module Interdependencies between Features: LTE447 need to be enabled RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0

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Nokia Solutions and Networks LTE RAN SW Sales Information: BSW/ASW ASW

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3.13 FRHF Flexi RF Module 6TX 2600 Unique ID: 1563 Short Description: FRHF Flexi Multiradio RF Module 6TX 2600 MHz has 6 Power Amplifiers enabling it to support one, two or three sectors with up to 40+40 W 2TX MIMO output power at the BTS antenna connectors. Size and visual outlook is similar to the existing Flexi RF Modules. The environmental protection class is IP65. From HW point of view it can be used as powerfull one sector RRH with max 4x40 W with 4TX MIMO and 4RX. 4TX MIMO and 4RX are separate SW features. Benefits for the Customer: 6TX 40 W RF Module general benefits: • the most cost and size and weight optimized 3-sector 2TX MIMO BTS site • industry leading RF integration level • 3 sector 2TX MIMO RF in one outdoor IP65 box • ambient temperature -35... +55 C • Smallest size and weight • Smallest power consumption and OPEX • Can be used as feederless site as well with one DC and 1...2 optical cables • 3-sector 2TX div and 2TX MIMO BTS can be build using only one 3-sector RF Module • one 3-sector Module is more cost effective than 3 x RF Head in feederless installations´ • Less weight • Less wind load • 1/3 of DC and 2/3 of optical cabling compared to 3-sector site with Remote RF Heads (RRH) • easier installation • less visual impact • HW prepared to support one sector 4x40 W 4TX MIMO with 4RX Functional Description: FRHF supports 3GGP band 7 at 2600 MHz highest 50 MHz part. With 6 x 40 W output Flexi RF Module, IP65. • operating band DL 2640 - 2690 MHz, UL 2520 - 2570 MHz • DL & UL Intermediate bandwidth 40 MHz (min) • 3 U high with Flexi platform mechanics. Basic LTE Configurations: • 1, 1+1 or 1+1+1 LTE cells @ max 20 MHz LTE bandwidth and 2TX MIMO / 2RX • 8, 20 or 40 W 1TX mode per sector (by branch activation SW licenses)


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• 8+8, 20+20 or 40+40 W 2TX mode per sector (by branch activation and MIMO SW licenses) • 1, 2 or 3 sectors max 40 + 40 W 2TX MIMO/2RX • HW prepared for 1 sector 4x40 W 4TX MIMO/4RX FRHF can be used in Feederless site (optical and DC cable up to 200 m). HW Requirements: no specific HW requirements Interdependencies between Features: . RL Software Dependencies: BTS LTE Flexi Release

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3.14 FRHE Flexi RRH 4TX 2600 Unique ID: 1662 Short Description: Flexi Multiradio Remote RF Head (RRH) with 4TX downlink MIMO and 4 receiver uplink diversity for world market LTE operation at 2600 MHz 3GPP band 7 for the lowest 55 MHz part. Benefits for the Customer: One sector Flexi Remote RF Head is able to support 4TX MIMO with high output power for hot spot dense urban capacity sites. It enables easy installation outdoors close to antennas thus maximising BTS site capacity and coverage for one sector. Functional Description: FRHE Flexi RRH 4TX 2600 Main features (common with other Flexi 4TX RRHs): • 3GPP band 7 2600 MHz, lowest 55 MHz • 2620 - 2675 MHz downlink and 2500 - 2555 MHz uplink • 4x30 W with four power amplifiers (at 45 C) • Optimized for single sector deployment with 4TX MIMO • one LTE cell with 4TX MIMO up to 20 MHz LTE per sector. • HW supports two 20 MHz cells up to 40 MHz bandwidth • 4-way Uplink RX Maximum Ratio Combining (MRC) HW support (LTE72 SW feature) • Optical chaining supported by HW (two optical connectors with 6 Gbit/s interfaces)


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• IP65 with -35 to +50 °C with convection coo ling • external alarms and outputs (as with 2TX RRH) • AISG2.0 Antenna tilt support with external connector (RS485) Mechanical dimensions (tentative target): • less than 20 liters • less than 18 kg HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release

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3.15 RF sharing WCDMA-LTE Unique ID: 435 Short Description: Flexi Multiradio RF Module is operating in concurrent WCDMA and LTE mode. This means that the Flexi Multiradio RF Module is transmitting both WCDMA RF carrier(s) and LTE RF carrier signals on 2100 MHz band. One Flexi System Module is operating in WCDMA SW mode and second Flexi System Module in LTE SW mode. Both are connected to two shared FRGP modules. Benefits for the Customer: Easy and future proof BTS site evolution by using the same Flexi Multiradio RF Modules by SW mode either in WCDMA only mode, or in concurrent WCDMA/LTE mode or in LTE only mode. Operator can run both WCDMA and LTE concurrently by the same Flexi Multiradio RF Module(s). Flexi Multiradio BTS brings general OPEX savings on spare part stock, logistics and maintenance. Functional Description: Flexi Multiradio RF Module FRGP is operating in concurrent WCDMA and LTE mode on 2100 Mhz band. Maximum RF bandwidth supported by Flexi Multiradio RF Module is 20 MHz. The concurrent RF WCDMA/LTE configurations per sector are -1, 2 or 3 WCDMA carriers + one max 5 MHz LTE carrier -1 or 2 WCDMA carriers + one max 10 MHz LTE carrier


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-1 WCDMA carrier + one max 15 MHz LTE carrier (SW support with later feature) The used spectrum is continuous so that all WCDMA and LTE carriers are adjacent to each other on 2100 MHz band. One, two and three sector concurrent RF configurations are supported with MIMO on LTE (2TX with virtual antenna mapping but no MIMO on WCDMA side). One sector 2TX MIMO is supported by one FRGP RF module. For two and three sector 2TX MIMO configurations two FRGP RF Modules are required. The RF sharing configuration will be supported in operation with the following behaviour: The shared equipment will need to be managed in a specific way. The two technologies are exchanging information between each other, so to know about the availability of the other side. RAT specific cell lock/unlock will not lead to outage of other technology. If other changes are done which need to have a restart also the other technology will be impacted. Different management roles The two technologies are having different roles with respect to operation: the master and slave role. In this RF sharing configuration of WCDMA and LTE, WCDMA is the master system module and is therefore controlling the shared RF resources. Master SM also controls MHAs and RETs. Configuration The configuration of the shared equipment and the SW download is possible only from the master WCDMA system module. The configuration file for both SMs will contain information on shared object and common parameters. The shared RF equipment are included in both technology inventory databases. The power configuration needs to cope with the need of both WCDMA and LTE. The configuration of the dedicated objects will need to be done via the SM that is responsible for the RAT specific dedicated resource. Commissioning WCDMA as master technology is commissioned first. In this way Slave can take a shared object into use immediately when Slave is commissioned. Alarming The alarms of the shared resources are doubled (master and slave alarm) and sent to respective technology specific cell of each system module (LTE and WCDMA). The alarmed resources in the alarms are different for LTE and WCDMA objects and the alarm ids are also different. The alarms sent for shared objects include indication that this is a shared alarm. No action needs to be triggered in case of slave on this, they shall be treated as for information only. The master shall trigger repair actions. Performance For performance management both system modules report their counters separately.


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HW Requirements: WCDMA compatible Multiradio Module or RRH (FRGP, FRGQ) Interdependencies between Features: Requires WCDMA feature RAN2126 RF Sharing WCDMA - LTE. Maximum 200 m distance between SM and RFMs is supported with shared sites (=> does not work in parallel with LTE614 distributed sites). RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0


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3.16 LTE Dual carrier operation within one RF band Unique ID: 471 Short Description: Two separate LTE carriers are supported by one Flexi RF Module or RRH within one 3GPP RF band with flexible carrier configurations in order to maximize usage of operators RF band. For example, operator has two separate RF blocks (e.g. 10 MHz + 10 MHz) at one 3GGP RF band. Or two operators can share one RF unit but have own dedicated carriers at same 3GPP RF band (i.e. MORAN with dedicated RF carriers).


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Benefits for the Customer: Spectrum efficiency of the limited natural resource i.e. maximum utilization of expansive RF band that operator has bought. More capacity per BTS when operator can use two carriers at the same RF band by one Flexi RF Module or RRH. Functional Description: One Flexi RF Module or RRH supports two LTE cells at one RF band simultaneously per RF sector (TX/RX and RX pipe). The same RF Bandwidth carrier combinations are supported per each RF TX/RX and RX sector/branch: Carrier 1 @ 5 MHz + Carrier 2 @ 5 MHz, or Carrier 1 @ 10 MHz + Carrier 2 @ 10 MHz, or Carrier 1 @ 15 MHz + Carrier 2 @ 15 MHz (min. RF HW BW 30 MHz), or Carrier 1 @ 20 MHz + Carrier 2 @ 20 MHz (min. RF HW BW 40 MHz) Main supported dual carrier configurations: • 2 or 2+2 or 2+2+2 1TX 2RX with one RF Module. • 2+2 or 2+2+2 2TX MIMO 2RX with two RF Modules • 2 cells 2TX MIMO 2RX with one RF Module or RRH 2TX or RRH 4TX (two antenna feeders used) • 2+2 2TX MIMO 2RX with two RF Modules or RRH 2TX or RRH 4TX (two antenna feeders used) • 2+2+2 2TX MIMO 2RX with three RF Modules or RRH 2TX or RRH 4TX (two antenna feeders used) • 1+1 2TX MIMO 2RX with one RRH 4TX (four antenna feeders used per RRH 4TX) • 1+1+1+1 2TX MIMO 2RX with two RRHs 4TX (four feeders used per each RRH 4TX) • 6x1 2TX 2RX with three RRHs 4TX (four feeders used per each RRH 4TX) HW Requirements: Flexi Multiradio 10 system module required. In addition supported only with following RF units: FRMA, FRMC, FRMD, FRHA, FRHC, FRHD, FRHF, FRIG, FXEB, FHEB. Interdependencies between Features: LTE179 “Dual band operation” required. RL Software Dependencies: BTS LTE Flexi Release RL50 -


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3.17 4-way RX diversity Unique ID: 72 Short Description: 4-way uplink diversity MRC (Maximum Ratio Combining) reception for Flexi LTE BTS. Benefits for the Customer: 4-way RX diversity enables reduced site number for building the coverage. Uplink gain is substantial in order of up to 3 dB in converting to higher UL data throughput and less BTS sites for coverage. BTS 4-way RX diversity is transparent to used antenna structures. It can be used with one physical 4 port antenna or two cross polarized antennas. Functional Description: 4-branch diversity reception per sector. Maximum ratio baseband combining of four uplink signals generate up to 3 dB coverage gain when compared to 2-branch diversity reception. Flexi Multiradio BTS RF Module HW supports 4-way DL diversity. With Flexi BTS feederless site 4-way DL diversity provides optimal solution to reduce site costs. Antenna feeders can be replaced with optical connection providing no feeder loss and no need for MHA. Flexi Multiradio System Module required (rel3 SM). Supported configurations with 3-sector RF Modules: 1+1 and 1+1+1 2TX MIMO/ 4RX MRC with two RF Modules (picture 1) 1-omni 2TX MIMO/ 4RX MRC with one RF Module (picture 2) 1+1 2TX MIMO/ 4RX MRC with two RF Modules (pic2) 1+1+1 2TX MIMO/ 4RX MRC with three RF Modules (pic2) 4 RX MRC requires SW licence key.


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HW Requirements: Flexi MR10 BTS Interdependencies between Features: The following features can not be enabled in combination with this feature: High speed user (LTE48) RF sharing GSM-LTE (LTE447) RF sharing WCDMA-LTE (LTE435) RL Software Dependencies: BTS LTE Flexi Release RL50 SW Sales Information: BSW/ASW ASW

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3.18 FRHD Flexi RRH 4TX 2600 Unique ID: 748 Short Description: Flexi Multiradio Remote RF Head (RRH) with 4TX downlink MIMO and 4 receiver uplink diversity for world market LTE operation at 2600 MHz 3GPP band 7. Benefits for the Customer: One sector Flexi Remote RF Head is able to support 4TX MIMO with high output power for hot spot dense urban capacity sites. It enables easy installation outdoors close to antennas thus maximising BTS site capacity and coverage for one sector. Functional Description: FRHD Flexi RRH 4TX 2600 Main features (common with other Flexi 4TX RRHs): • 3GPP band 7 2600 MHz, highest 50 MHz • 2640 - 2690 MHz downlink and 2520 - 2570 MHz uplink • • • • • • • •

4x30 W with four power amplifiers (at 45 C) Optimized for single sector deployment with 4TX MIMO one LTE cell with 4TX MIMO up to 20 MHz LTE per sector. 4-way Uplink RX Maximum Ratio Combining (MRC) HW support (LTE72 SW feature) Optical chaining supported by HW (two optical connectors with 6 Gbit/s interfaces) IP65 with -35 to +50 °C with convection coo ling external alarms and outputs (as with 2TX RRH) AISG2.0 Antenna tilt support with external connector (RS485)

Mechanical dimensions (tentative target): • less than 20 liters • less than 18 kg


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HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release

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3.19 FXDA Flexi RF Module 3TX 900 Unique ID: 88 Short Description: FXDA is Flexi Multiradio RF Module version for 900 MHz able to support one, two or three sectors with maximum 3x60 W output power at the BTS antenna connectors. Can be used as powerfull one sector RRH with maximum 60 W + 60 W 2TX MIMO.Size and visual outlook is similar to the existing rel1 Dual and Single Flexi RF Modules. The environmental protection class is IP65. Benefits for the Customer: FXDA Flexi 3-sector RF Module 60 W 900 MHz has 20 MHz HW bandwidth support at 3GPP band 8.3-sector 3x 60 W RF Module general benefits: • the most cost and size and weight optimized 3-sector BTS site • industry leading RF integration level • SW configurable radio: the same RF Module for LTE, HSPA+ and WCDMA and GSM/EDGE • up to 3 sectors RF in one outdoor IP65 box • Widest ambient temperature range -35... +55 C • Smallest size and weight • Smallest power consumption and OPEX • Can be used as feederless site as well with one DC and 1...2 optical cables • TX div and MIMO 2TX can be build using two 3-sector RF Modules • RF redundancy option comes as side bonus


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• 0ne 3-sector Module more cost effective than 3 x RF Head in feederless installations because: • Less weight • Less wind load • typically 1/3 of DC and optical cabling compared to site with Remote RF Heads (RRH) • easier installation • less visual impact • RF Module can be used as powerfull one sector RRH : 60 + 60 W 2TX MIMO with HW prepared for 4RX Functional Description: 3x 60 W output Flexi Multiradio RF Module, IP65 outdoor.3GPP band 8 supported. 3 U high with Flexi platform mechanics. Basic LTE Configurations: • 1, 1+1 or 1+1+1 LTE cells @ max 10 MHz LTE bandwidth and 1TX/2RX (in 3GGP LTE UE support is max 10 MHz at 900 MHz) • 8, 20, 40 or 60 W mode per sector (by SW licenses) • HW supports 20 MHz BW in multiradio configurations • 1 sector max 60 + 60 W 2TX/2RX MIMO • HW prepared for 1 sector max 60 + 60 W 2TX/4RX MIMO FXDA can be used in Feederless site (optical and DC cable up to 200 m). WCDMA and GSM/EDGE configurations are described in GSM/EDGE and WCDMA release documents. HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release

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3.20 FBBA Flexi Capacity Extension Sub-Module Unique ID: 972 Short Description: The FBBA is a baseband capacity extension sub-module for the Flexi Multiradio System Module FSMF. Benefits for the Customer: The System Module FSMF capacity can be flexibly expanded. Functional Description: The Flexi Multiradio BTS baseband capacity extension sub-module FBBA is an optional extension to the Flexi Multiradio BTS System Module. One FBBA provides a hardware baseband capacity for up to three 20 MHz LTE cells. The 1U high FBBA is IP65 ingress protected. The operating temperature range is from -35° to + 5 5° C. The FBBA sub-module has the following external interfaces: - One -48VDC input and one -48V DC output - One baseband extension interface for connecting to FSMF core - One optical OBSAI RP3-01 interface with up to 6 Gbit/s - One SRIO (Serial Rapid Input/Output) interface for an external baseband extension, e.g. additional System Module

HW Requirements: Flexi MR10 BTS Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release RL50 -

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3.21 FRGT Flexi 3-sector RF Module 2100 Unique ID: 985 Short Description: High Power Flexi Multiradio 3-sector RF Module FRGT for 2100 MHz band is introduced. Benefits for the Customer: New high power 3-sector Flexi Multiradio RF Module introduces industry leading RF integration level and smallest power consumption combined with flexible WCDMA-LTE site evolution. Full support for Multioperator sites with high output power and wide RF bandwidth. Functional Description: FRGT Flexi Multiradio RF Module HW supports WCDMA and LTE in dedicated or concurrent mode. Flexi Multiradio RF Module provides 3*80 W output power at the antenna connector. Maximum capacity of one Flexi Multiradio RF Module for WCDMA 2100 MHz is up to 4 carriers and up to 2*20 MHZ LTE carrier. TX supports 35MHz instantaneous bandwidth (However, target is to maximize the bandwidth as wide as possible during the development) and RX supports 60MHz instantaneous bandwidth. Power consumption is optimised by new advanced Power Amplifier architecture. In 2100 MHz band one Flexi Multiradio RF Module HW supports the following WCDMA configurations: - from 1+1+1 @ 80 W - to 4+4+4 @ 20 W basic LTE configurations with one RF Module 1+1+1 @ max. 80 W 1 TX / 2RX 1 omni @ 80+80 W 2TX / 2RX basic LTE configurations with two RF Modules 1+1 and 1+1+1 @ max 80 + 80 W 2TX MIMO / 2RX Other functionalities: - Integrated class II OVP protection level in DC connector - RET connector - 6 Gbit OBSAI Optical interface with 6 Gbit/s mode enables 4-RX Div optional configurations with two RF Modules up to 20 MHz bandwidth: 1+1+1 @ max 80+80 W 2TX MIMO/4RX 15/20 MHz BW 2+2+2 @ max 40+40 W 2TX MIMO/4RX 15/20 MHz BW HW Requirements: Power consumption must be optimised by 3-way Doherty PAs (or similar).


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HW design is based on Rel2.3 platform (MERA ASIC). Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0 SW Sales Information: BSW/ASW ASW

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3.22 FRGS Flexi 3-sector RF Module 2100 Unique ID: 986 Short Description: New Flexi Multiradio 3-sector RF Module FRGS for 2100 MHz band is introduced. Benefits for the Customer: New 3-sector Flexi Multiradio RF Module introduces industry leading RF integration level and smallest power consumption combined with flexible WCDMALTE site evolution. Full support for Multioperator sites with high output power and wide RF bandwidth. Functional Description: Flexi Multiradio RF Module HW supports WCDMA and LTE in dedicated or concurrent mode. Flexi Multiradio RF Module provides 3*80W output power at the antenna connector. Maximum capacity of one Flexi Multiradio RF Module for WCDMA 2100 MHz is up to 4 carriers and up to 20 MHz LTE carrier. Filter bandwidth is 40MHz, covering UL 1940-1980MHz, DL 2130-2170MHz. TX supports 35MHz instantaneous bandwidth (However, target is to maximize the bandwidth as wide as possible during the development) and RX supports 40MHz instantaneous bandwidth. Power consumption will be optimised by 3-way Doherty PAs. basic LTE configurations with one RF Module 1+1+1 @ max. 80 W 1 TX / 2RX 1 omni @ 80+80 W 2TX / 2RX basic LTE configurations with two RF Modules 1+1 and 1+1+1 @ max 80 + 80 W 2TX MIMO / 2RX Other functionalities: - Integrated class II OVP protection level in DC connector - RET connecor - 6Gbit OBSAI HW Requirements: no specific HW requirements


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4 Transmission 4.1 Transport Separation for RAN Sharing Unique ID: 505 Short Description: The eNB supports two U-plane IP addresses and two C-plane IP addresses. This feature complements LTE4 “RAN Sharing”. Benefits for the Customer: This features supports a RAN Sharing scenario where IP networks for mobile backhaul are separately administered. Functional Description: IP addressing: The eNB supports two IP addresses for U-plane (U1@ for operator 1, U2@ for operator 2) C-plane (C1@ for operator 1, C2@ for operator 2) M-plane and S-plane are owned by one of the operators. The eNB supports a single M-plane (M@) and a single S-plane (S@) application address. IP addresses and corresponding VLANs can be shared, eg. U1@=C1@, M@=S@. eNB addresses must be different per operator: U1@≠U2@, C1@≠C2@. There is no restriction as to SAE-GW and MME IP addresses, i.e. same addresses may be used in the different core networks, if IPsec is applied within the eNB or policy based routing, e.g. source based routing, is done in the backhaul network. Handover: There is only one SCTP association established between eNB pairs (3GPP TS 36.422) - All X2C traffic needs to go via one C-plane IP address of one eNB - All X2U traffic needs to go via one U-plane IP address of one eNB S1 HO happens at the border between operator areas QoS: Transport capacity reservation through dedicated VLAN(s) per operator QoS scheduling and shaping per each VLAN The same QCI to PHB/DSCP/p-bit mapping is used for both operators. Transport security with IPSec for RAN Sharing is not included in this feature, but additions will be handled separately with the feature: LTE523 Multi-layered Certificate Authorities


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HW Requirements: Flexi MR10BTS Interdependencies between Features: Requires LTE523 "Multi-layered Certificate Authorities" RL Software Dependencies: BTS LTE Flexi Release RL50 SW Sales Information: BSW/ASW ASW

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5 Radio Resource Management and Telecom 5.1 Mobility 5.1.1 RSRQ based cell reselection Unique ID: 1036 Short Description: Quality based inter-frequency and IRAT idle mode mobility Benefits for the Customer: The feature allows for inter-frequency load balancing of UEs in RRC IDLE. Functional Description: The Flexi Multiradio BTS supports additional cell re-selection settings for inter-frequency and inter-RAT cell reselection. The eNode B broadcasts the information via SIB1, 3, 5 and 6 to all UEs in a cell. The following additional parameters are supported: SIB 1 • q-QualMin • q-QualMinOffset SIB 3 • s-IntraSearch P and Q • s-NonIntraSearch P and Q • q-QualMin • threshServingLowQ SIB 5 • q-QualMin • threshX-HighQ • threshX-LowQ SIB 6 • threshX-HighQ • threshX-LowQ HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release

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5.1.2 TDD - FDD handover Unique ID: 1060 Short Description: Loss less handover between TDD and FDD. Benefits for the Customer: The operator can offer service conitunity between FDD and TDD. Functional Description: The following TDD/FDD handover scenarios are supported by the Flexi Multiradio BTS: • inter-eNB, inter-frequency band via X2 • inter-eNB, inter-frequency band via S1 (if enabled) Both handover directions FDD -> TDD and TDD -> FDD are supported. The UE capabilities as well as the feature group indicators (FGIs) are considered. Handover trigger The following measurement events are used for the measurement based inter-frequency handover: • A1 - deactivate inter-frequency measurements • A2 - activate inter-frequency measurements • A3 - inter-frequency measurements • A5 - inter-frequency measurements The events A1 and A2 are used to control the start and stop of inter-frequency measurements on the target cells. The target cells for the inter-frequency handover can be configured by the operator. The events A3 or A5 are used to report suitable inter-frequency neighbors. The UE radio access capabilities are considered for the measurement configuration. The handover thresholds, hysteresis margins and timer constrains for the inter-frequency handover are O&M parameters that can be configured by the operator. The evaluation of measurements reports, the handover preparation, execution, completion and the data forwarding is identical to the intra-frequency handover via X2 rsp. S1. The existing inter-frequency performance counters are used in order to track the performance.


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The operator can enable / disable the functionality per eNode B by O&M setting. HW Requirements: no specific HW requirements Interdependencies between Features: The feature is enabled together with LTE55. RL Software Dependencies: BTS LTE Flexi Release

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5.1.3 Inter eNode B IF Load Balancing Unique ID: 1170 Short Description: Load balancing for cells deployed on different frequency layers. Benefits for the Customer: Avoiding of overload situations for specific cells by steering the traffic into less loaded cells at a different frequency layer or balance load between frequency layers. Functional Description: The Flexi Multiradio BTS supports load based inter-frequency handover between different eNode Bs connected via X2 or S1. The eNode B monitors the source cell load in order to initiate a load based handover. The cell load calculation takes the following parameters for downlink into account: • physical resource block (PRB) utilization, • PRBs available for non GBR users, • number of non GBR users with data in buffer and • PDCCH load All UEs changing from RRC IDLE to RRC CONNECTED become candidates for the load based inter-frequency handover when a UE-specific timer that is started at UE context setup has expired and optionally when no QCI 1 bearer is established for that particular UE. The eNode B triggers the load based handover if above conditions are met at expiry of the timer. The UE capabilities are taken into account as well.


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The load balancing handover is measurement based with dedicated thresholds using the event A4. RSRP is used as the handover trigger together with the measurements quantities RSRP and/or RSRQ. The UE measurements are aborted if the UE does not provide a measurement report or only measurements reports of temporarily blacklisted cells. All inter-frequency target layers for the coverage based handover are used as targets for the load based handover. The eNode B selects the target cell for the handover preparation based on reported CAC, blacklisting status and RF condition. The cause value reduce load at source cell is used for the handover preparation. The target cell uses the CAC in addition at radio admission control thresholds in order to decide whether to admit or reject a handover request with the cause value reduce load at source cell. Handover preparation rejections with the cause value No Radio Resources available at the Target Cell will be used to temporarily blacklist the concerned cell for a load based handover. The timer is operator configurable. Handover retries are not performed (i.e. neither after a handover request due to load balancing has been rejected nor when a load balancing handover was not successful). Separate performance counters are provided in order to capture the handovers due to load balancing, e.g. • Number of inter frequency load balancing handover attempts • Number of successful inter-frequency load balancing handover completions • Number of inter-frequency load balancing handover failures per cause • Number of inter frequency load balancing handover attempts per neighbor cell relation • Number of successful inter-frequency load balancing handover completions per neighbor cell relation • Number of inter-frequency load balancing handover failures per cause per neighbor cell relation • Target cell load counters (high / load) The feature can be enabled / disabled per eNode B by O&M settings. HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release

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5.1.4 RSRQ based redirect Unique ID: 1407 Short Description: RSRQ is used in addition to RSRP in order to trigger a RRC connection release with redirect. Benefits for the Customer: The functionality allows to handle extrem inter-cell interference scenarios, e.g. WCDMA refarming with the tight site re-use. Functional Description: The Flexi Multiradio BTS supports with the feature an addtional A2 event where RSRQ is used as the trigger for the RRC connection release with redirect (pls refer to LTE423). HW Requirements: no specific HW requirements Interdependencies between Features: It is not recommended to use the feature in combination with SRVCC. RL Software Dependencies: BTS LTE Flexi Release

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5.1.5 Open access home eNode B mobility Unique ID: 1442 Short Description: The Flexi Multiradio BTS supports redirect based intra LTE mobility towards open access Home eNode Bs. Benefits for the Customer: This feature enables higher density of femto cells to be deployed.


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Functional Description: The Flexi Multiradio BTS supports a redirect based inter- and intrafrequency based mobility towards open access Home eNode Bs.The open access Home eNode Bs have to use an operator configurable range of pre-reserved physical cell IDs (PCI) per frequency layer. Different Home eNode Bs within a macro cell can use the same PCIs.

The Home eNode B PCIs can be blacklisted. A common cell individual offset can be applied for all Home eNode Bs. The UE measurement reports with the reserved PCIs considered as Home eNode B. ANR will not be triggered for these PCIs. The Home eNode Bs cells will be treated at the target cell selection like cell connected via S1. The eNode B performs a RRC connection release with redirect instead of a handover in case that the Home eNode B cell has been selected as a target. Home eNode Bs are not considered as targets for inter-frequency load balancing. The following performance counter is supported, e.g.: • Number of RRC connection releases with redirect towards Home eNode Bs The functionality can be enabled / disabled per eNode B by O&M setting. HW Requirements: no specific HW requirements Interdependencies between Features: The following ANR and MRO features are not applied for the open access Home eNode Bs. LTE492 - ANR LTE539 - Central ANR LTE782 - ANR Fully UE based LTE956 - MRO Evolution LTE533 - Monility Robustness LTE556 - Inter-frequency ANRAll feature using the X2 interface are not supported, e.g. LTE1170 - Inter-frequency load balancing

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5.1.6 Idle mode mobility load balancing Unique ID: 487 Short Description: Idle mode mobility based on cell re-selection priority setting. Benefits for the Customer: Balancing resource usage in multi-carrier or multi-band deployment Functional Description: The Flexi Multiradio BTS supports idle mode mobility load balancing between different LTE carrier frequencies as well as for IRAT scenarios. The load balancing is achieved by providing dedicated the cell re-selection priorities with the normal RRC:RRCConnectionReleaseMessage to an operator configurable percentage of UEs. The timer T320 for which the new priorities are applied is operator configurable. The assignment of dedicated priorities for the idle mode mobility is done via mobility profiles. The SPIDs 254, 255 and 256 are supported for the selection of the mobility profiles for dedicated idle mode mobility profiles in addition to the operator specific SPID (LTE490). Load balancing for CSFB with redirect and a normal redirect is as well supported in case that the target cells have the same priority. The functionality can be enabled / disabled per eNode B by O&M setting. HW Requirements: no specific HW requirements Interdependencies between Features: LTE490 needs to be enabled if operator specific SPID are used LTE562 needs to be enabled if a redirect based CSFB is used. RL Software Dependencies: BTS LTE Flexi Release

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5.1.7 Intra cell handover Unique ID: 511 Short Description: The eNode B performs a handover to the serving cell. Functional Description: The Flexi Multiradio BTS supports intra cell handover. The intra cell handover is triggered on UE basis in order to • refresh security keys triggered by S1AP: UE CONTEXT MODIFICATION REQUEST with Security Key IE or UE Security Capabilies IE (e.g. after IRAT handover) • refresh of security keys triggered by eNB itself to avoid a cypherstream re-usage, caused for example by • triggered by low amount of remaining unused radio bearer IDs • triggered by a approaching wrap-around of a PDCP COUNT value • synchronize selected RRC procedures between the UE and the eNode B The above mentioned security use cases are supported by this feature including its application. The synchronization use case is supported only in combination with the related feature (e.g. TTI bundling). Intra cell handovers are not checked against admission control thresholds. eNode B triggered and RRC triggered intra cell handovers are not performed during • ongoing handovers and • UE gap measurements. The following performance management counters are supported per cell, e.g.: • number of intra cell handover attempts • number of successful intra cell handovers • number of failed intra cell handovers

HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release

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5.2 Coverage, capacity and peak rates 5.2.1 Downlink carrier aggregation - 20 MHz Unique ID: 1089 Short Description: Improved average UE downlink throughput at low and medium loaded networks Benefits for the Customer: Operators with fragmented 5+5, 5+10 or 10+10 MHz spectrum allocations can offer the same end user-experience as operators with a single band 10, 15 or 20 MHz deployment. Functional Description: The Flexi Multiradio BTS supports carrier aggregation in downlink for two component carriers (CC) of 5 or 10 MHz cell bandwidth each and two non aggregated uplink cells. A mix of non carrier aggregation UEs and carrier aggregation UEs is supported in downlink. The maximum aggregated downlink bandwidth is 20 MHz. The supported band combinations (depending on the 3GPP progress) for the deployment scenario 2 described by 3GPP TS 36.300 are: • band 1 + band 5 • band 3 + band 5 • band 3 + band 8 • band 1 + band 8 • band 1 + band 18 • band 5 + band 12 The downlink carrier aggregation is applied for • UEs with the related UE capabilities and • UEs having only non GBR e-RABs established. The following functional extensions are introduced for the downlink carrier aggregation: Radio Admission control UEs are admitted based on the primary component carrier (PCC) admission control settings. The same thresholds as for non carrier aggregation capable UEs are applied. Mobility The following mobility scenarios are supported: • handover of UEs with carrier aggregation activated to carrier aggregation enabled cells, • handover from a non carrier aggregation enabled cells to carrier aggregation enabled cells and


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• handover of UEs with carrier aggregation activated to non carrier aggregation enabled cells. The mobility for carrier aggregation configured UEs is based on PCC measurements. The same measurements configurations as for non CA configured UEs are applied, e.g. A3 and/or A5. Secondary component carrier (SCC) handling The SCC is configured blindly with a RRC:RRCConnectionReconfiguration message once the UE capabilities are known to the eNode B. The SCC is deactivated in case that the MAC timer expires. Barred cell can be used as SCC for UE which have already configured the SCC. New SCC configurations are not allowed for barred cells. Scheduling UEs with an activated SCC are scheduled by separate and coordinated downlink schedulers. The fairness between carrier aggregation UEs and non carrier aggregation UEs can be controlled by an operator configurable parameter. The DRX handling as well as the measurement gap handling is synchronized between the two downlink schedulers. The combined downlink throughput is used for the proportional fair scheduling and UE AMBR control. The combined user activity is used for smart DRX decisions. PUCCH The PUCCH resource allocation for CQI, SR and HARQ-ACK is adapted in order to handle two downlink CC. Performance Counters The following additional performance counters are supported per cell: • average number of DL carrier aggregation capable UEs per CC • average number of UEs with a configured SCC • number of SCC configuration attempts • number of successful SCC configurations • number of failed SCC configurations • RLC throughput SCC throughput. The functionality can be enabled / disabled per eNode B by O&M setting.


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HW Requirements: Carrier aggregation requires that the eNode B is configured with a sufficient number of cells. Carrier aggregation is not supported for FSMD. Asymmetric 5+10 MHz combinations require FSMF. Interdependencies between Features: The following features are excluded from the interworking with carrier aggregation: LTE4 MOCN LTE568 MIMO 4x2 LTE72 4RX Diversity RL Software Dependencies: BTS LTE Flexi Release

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5.2.2 FDD Supercell Unique ID: 1542 Short Description: The supercell functionality allows to combine two normal overlapping cells to one supercell. Benefits for the Customer: Supercells may help to reduce the inter-cell interference in dense network deployments. Functional Description: The Flexi Multiradio BTS supports a configuration options for supercells. A supercell is a logical combination of two normal cells of an eNode B. Downlink supercell operation The supercell applies in downlink a 2x2 MIMO configuration. The two data streams are transmitted via two different RRHs. The RRHs can be either co-located or located at different geographical locations. Uplink supercell operation The uplink signals received by both RRHs are combined by a common 4-way RX receiver. The following cell configuration options are supported in addition to a six cell configuration: • one 10 MHz supercell per eNode B + four normal 10 MHz cells • two 10 MHz supercells per eNode B + two normal 10 MHz cells • three 10 MHz supercells per eNode B The configuration of a supercell is applied with BTS restart. HW Requirements: Dedicated configuration rules have to be applied for supercell configurations. Interdependencies between Features: A 4-way RX receiver LTE72 functionality needs to be enabled. MIMO operations needs to be enabled: LTE70 or LTE703The following features are not supported in combination with this funtionality: LTE1089 Carrier aggregation 20 MHz, LTE48 High speed users, LTE495 OTDOA and any higher order MIMO functionality, e.g. 4x2 MIMOThe following features can be used with workarounds as multiple transmission points are used: LTE468 PCI management, LTE783 ANR InterRAT UTRAN and LTE784 ANR InterRAT GSM


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5.2.3 DL adaptive closed loop MIMO (4x2) Unique ID: 568 Short Description: The Flexi Multiradio BTS supports 4x2 adaptive closed loop MIMO. Benefits for the Customer: A 4x2 MIMO configuration provides mainly additional cell coverage gain as well as a small capacity gain compared to a 2x2 MIMO configuration. Functional Description: The Flexi Multiradio BTS supported 4x2 adaptive closed loop MIMO. The adaptive closed loop MIMO is based on the transmission mode 4 for the UE class 2 or higher. The Flexi Multiradio BTS provide a fast switch between • single code word, layer 1 transmission • dual code word, layer 2 transmission based on the RI (Rank Indication) and the PMI (Precoding Matrix Indication) provided by the UE. 4-way TX diversity, a combined SFBC (Space-Frequency Block Code) and FSTD (Frequency Switched Transmit Diversity) is applied for PDCCH, PCFICH, PHICH and PBCH as well for PDSCH for class 1 UEs. Precoding vector switching is applied for the primary synchronization channel (PSS) and the secondary synchronization channel (SSS). The downlink power boosting features are adapted to support a 4 TX configuration with the additional reference symbols. The following existing performance counter is applied for this functionality: • MIMO mode time distribution (single code word / dual code word) The functionality can be enabled / disabled per cell by O&M settings. HW Requirements: Flexi MR10 BTS. The feature is supported only in combination with 4RX/4TX RRHs or 6RX/6TX RFMs.


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Interdependencies between Features: LTE 72 4RX Diversity or LTE980 IRC for 4 RX path needs to be enabled. RF sharing in combination with this feature is not supported. RL Software Dependencies: BTS LTE Flexi Release

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5.2.4 Flexible UL Bandwidth Unique ID: 786 Short Description: A LTE Rel-8 compliant method to reduce uplink bandwidth below nominal system bandwidth via PUCCH blanking. Benefits for the Customer: The LTE Rel-8 compliant method to reduce the uplink bandwidth below the nominal system bandwidth (e.g. 8.5 MHz uplink rather than 10 MHz uplink) is based on PUCCH Blanking. PUCCH Blanking can be used for: • reducing the effective UL bandwidth below a nominal LTE UL bandwidth, • controlling UE spurious and out-of-band emissions, • controlling UE self-interference Functional Description: The Flexi Multiradio BTS supports PUCCH blanking by not allocating PUCCH resources to the outer PRBs. The number of blanked PUCCH resources is operator configurable. The blanked PUCCH resources need to be considered when configuring the overall PUCCH resources. The uplink scheduler does no allocated any PUSCH resource to the blanked areas. The O&M configured PRACH resources can be allocated at the center band between the two PUCCH areas. PUCCH blanking leads to a degradation of the achievable uplink peak rates and the uplink cell throughput. The PUCCH blanking is applied symmetrically to both band edges.


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HW Requirements: no specific HW requirements Interdependencies between Features: none RL Software Dependencies: BTS LTE Flexi Release

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5.2.5 TTI bundling Unique ID: 907 Short Description: TTI bundling allows for better uplink performance at the cell border in LTE and reduced PDCCH signaling load. Benefits for the Customer: Bundling of TTIs enhances the uplink coverage. One transport block is allocated to four TTIs instead of one TTI, i.e. the energy per transmitted bit is increased. Functional Description: The Flexi Multiradio BTS supports TTI bundling in order to increase the uplink coverage and to reduce the PDCCH load. TTI bundling allows to allocate one transport block in uplink to four TTIs and up to three PRBs, which leads to an improved uplink link budget. The uplink rate is limited by the maximum allocation of three PRBs. TTI bundling is applied only for UEs with the related UE capabilities. The radio resource management of the eNode B dynamically activates / deactivates TTI bundling per UE with the RRC:RRCConnectionReconfiguration message. The thresholds for the activation and the deactivation are operator configurable. The RRC connection reconfiguration is performed as an intra-cell handover in order to ensure that the UE and the eNode B are synchronised. TTI bundling switches are not performed during active UE handover measurements requiring measurement gaps (e.g. inter-frequency or IRAT handover) as this may lead to a degradation of the handover performance. The following counters are provided in order to monitor the performance, e.g.: • Number of UL grants for TTI bundling • Average number of UEs configued for TTI Bundling mode of suc • Distribution of UE retention in TTI Bundling mode(short/medium/long UE retention in TTI Bundling mode) The TTI bundling functionality can be enabled / disabled per cell by O&M settings. HW Requirements: no specific HW requirements Interdependencies between Features: TTI bundling can be used for TDD only if the configuration 0, 1 or 6 is enabled. RL Software Dependencies: BTS LTE Flexi Release

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5.2.6 IRC for 4 RX paths Unique ID: 980 Short Description: The interference rejection combining (IRC) improves mainly for highly loaded and interference limited cells the uplink performance of cell edge users and slightly increases the uplink cell capacity. Benefits for the Customer: A better uplink cell performance can be achieved. Functional Description: The Flexi Multiradio BTS supports a MMSE-IRC receiver for 4 RX paths per cell. A synchronised operation of the network is recommended in order to exploit the full gain of IRC. The IRC functionality can be enabled / disabled per cell by O&M settings. HW Requirements: Flexi MR10 BTS Interdependencies between Features: LTE72 4RX Diversity needs to be enabled A synchronised operation can be achieved either via GPS synchronisation or timing over packet with phase synchronisationThe following features can not be enabled in combination with this feature: High speed user (LTE48) RF sharing GSM-LTE (LTE447) RF sharing WCDMA-LTE (LTE435) RL Software Dependencies: BTS LTE Flexi Release RL50 SW Sales Information: BSW/ASW ASW

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5.3 QoS, services and end user experience 5.3.1 Active Queue Management Unique ID: 1680 Short Description: Selected packet drop during downlink congestion. Benefits for the Customer: TCP stalling conditions during downlink congestion are reduced. Functional Description: The Flexi Multiradio BTS supports an advanced queueing management for TCP downlink traffic in order to reduce TCP stalling situations. Selected downlink packets are dropped during downlink congestion, which is identified by the expiry of PDCP discared timers, in order to trigger a reduction of the source rate of the related TCP streams. The functionality is applied for all QCIs. HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release

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5.3.2 Smart DRX Unique ID: 585 Short Description: Improved power saving for always on users Benefits for the Customer: The feature allows for UE power saving for the duration of the UE short inactivity timer. Functional Description: The Flexi Multiradio BTS introduces with this feature additional flexibility for the DRX handling in RRC connected.The short DRX cycle is introduced in addition


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to the long DRX cycle for UE with according UE capabilities. The short DRX is used to collect additional UE reports for a reliable timing advance (TA) estimation. This change allows for a more flexible configuration of the DRX Inactivity Timer for long DRX cycles (≥ 160ms). The feature can be enabled / disabled per cell by O&M setting. HW Requirements: no specific HW requirements Interdependencies between Features: The features LTE42 DRX in RRC connected mode and LTE473 Extended DRX Settings must be enabled. RL Software Dependencies: BTS LTE Flexi Release

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5.4 Basic LTE call handling and interworking 5.4.1 ZUC security algorithm Unique ID: 1139 Short Description: An additional algorithm for ciphering and integrity protection is introduced. Benefits for the Customer: The new ZUC algorithm provides enhanced security. Functional Description: The Flexi Multiradio BTS supports the ZUC algorithm for • ciphering (EEA3) and • integrity protection (EIA3). The support can be enabled / disabled per eNode B by O&M settings. HW Requirements: Flexi MR10 BTS Interdependencies between Features: no feature interdependencies


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6 Operability 6.1 Network Monitoring and Maintenance 6.1.1 Event-triggered symptom data collection and provisioning Unique ID: 1099 Short Description: The feature presents a centralized function of collecting BTS Techlogs (troubleshooting data) from Flexi Multiradio BTS when a predefined event occurs. The logs are available in the NetAct and can be accessed by operator and sent to technical service to identify problems. Benefits for the Customer: Much more efficient way to collect troubleshooting data Automatic troubleshooting data collection decereases the workload while self-triggered troubleshooting data generation makes data more accurate to solve failure. OPEX savings with automatic trouble shooting data collection from NetAct or BTS SM. There is no need to do it manually. Functional Description: Triggering The log collection is triggered by BTS raw alarms inside the Flexi Multiradio BTS. These raw alarms are not reported to customer as alarms but they are linked to BTS Fault. There are up to 20 predefined triggers. The triggers (BTS Fault Id) are set by Site Configuration (PDDB) parameter. Configuration The Site Configuration File which is downloaded to the Flexi Multiradio BTS has the Site Configuration parameters including predefined BTS Fault Ids. The selection of the trigger events (the specific raw alarms) for log collection can be set in NetAct by Site Configuration parameters. Therefore configuration of this feature will come with the eNB Configuration file during the commissioning. The defined BTS Faults (up to 20 predefined faults) are initially not activated by default. This feature can be turned on/off from NetAct and BTS SM. Turning off/on of triggering log collection will be done for the whole eNB or for a set of predefined faults. Deactivation of Techlog triggering is done manually Process of log collection (who triggers and who receives) Techlog is triggered by the BTS when a raw alarm is raised. When a trigger fault is noticed, the BTSOM freezes buffers and takes snapshots of data. BTSOM starts uploading of troubleshooting data to OMS. Each piece of the data is transferred automatically to the OMS as separate file using BTS O&M interface file upload procedure. The OMS packs and compresses all files in one troubleshooting data file or BTS Technical log. The BTS deletes freezed data immediately after successful transfer to the OMS. The OMS informs the NetAct of Techlog and the NetAct uploads the file from the OMS. The OMS sets 71106 TROUBLESHOOTING DATA RECEIVED alarm to inform the user that OMS received new troubleshooting data file. On seeing this alarm the OMS/NMS engineer collects the TechLog and sends it to TS. Use case (Reactive approach)


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Usually when an abnormal situation occurs, the operator creates a trouble ticket. The Technical support (TS) or R&D analyzes the ticket and decides if a Techlog collection would be required. The Techlog collection will be done for an existing situation or for a situation which is expected to occur repeatedly. TS informs the operator to activate Techlog collection based on a trigger. It is the duty of TS/R&D to define the triggers . The operator will have some instructions on how to activate Techlog collection. The operator may get assistance from TS according to the service agreement. When an indication (71106 TROUBLESHOOTING DATA RECEIVED alarm ) of the availability of Techlog is present, the OMS/NMC engineer collects the Techlog and sends it to TS HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0


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6.1.2 Basic Layer3 Data Analyser (L3DA) for LTE Unique ID: 1687 Short Description: A new trace analyser tool is offered for LTE with Layer3 Data Analyser (L3DA).The Layer 3 Data Analyser (L3DA) enables the analysis of Flexi Multiradio BTS trace data. With this feature the multiradio wide existing trace analysis platform will also be introduced for LTE. On other technologies the analyser is known as Emil or Megamon. The L3DA is integrated on the same platform as the Layer 3 Data Collector (L3DC). Benefits for the Customer: LTE Layer3 Data Analyser (L3DA) is offering trace analysis support for trace data collected with L3 Data Collector (L3DC). Functional Description: With this feature the multiradio wide existing trace analysis platform will also be introduced for LTE. On other technologies the analyser is known as Emil or Megamon. In LTE the trace analyser tool is named Layer3 Data Analyser (L3DA). The Layer 3 Data Analyser (L3DA) enables the analysis of Flexi Multiradio BTS trace data.


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In this release the following basic functionalities are offered: • Analyse Flexi Multiradio BTS cell trace data, based on traces including trace messages of RRC, S1AP messages and X2AP messages • Simplifications with the support of graphical interfaces for easy to read formatCell Trace data in a human-readable form (including message names and ASN decoded data, ...) • One Call scenario in one row • Time-based retrieval of the trace information • Works as offline tool, that reads data from Files/logs stored on L3DC for L3 level messages • Savings of Signaling Scenarios to different formats • L3DA works in strong co-operation with L3DC and it is integrated within the HW of the L3DC solution. There is no need for additional hardware. • L3DA can access data of one L3DC in this release. In later releases the access to several L3DC is going to be supported. • L3DA provides a uniform tool/mechanism across Nokia Solutions and Networks offered technologies.

Using L3DA • Operator can analyze with L3DA one cell trace session at the same time • Operator can analyze (open) the stored files (trace sessions) on L3DC based on time and cell. • On one server, operator can access all the trace sessions, currently 200 eNB are supported. In L3DC the trace data storage is configurable and depends on the disk space (for which exist various options). L3DC can hold typically up to 22 TB. One fully loaded cell trace session generates 0.85MB/s (72GB/day).


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HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release RL50 SW Sales Information: BSW/ASW ASW

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6.2 Configuration Management 6.2.1 Automatic cell combination assignment for Carrier Aggregation Unique ID: 1367 Short Description: Specific LTE mobility features, as e.g. carrier aggregation, require to indicate the cells which shall build a group of cells which shall interwork. LTE1367 offers an automatic cell selection for identifying the best candidates for Carrier Aggregation. No manual selection of cells is required anymore. Benefits for the Customer: Automatic and optimized cell selection avoid any manual planning and setting of cell combinations which are used in LTE mobility scenarios. Functional Description: This automated configuration feature identifies the best cell pair candidates which shall be used for Carrier Aggregation. The specific conditions for the cell pairs applicable for carrier aggregation are considered. The sector ID and the Carrier Aggregation Relation Parameter (CAREL) used in carrier aggregation are generated for the cells in primary component carrier (PCC) and cells in secondary component carrier (SCC). The cells in the same sector are configured with the same sector ID and the CAREL identify the cell pairs used for carrier aggregation. The selection of the corresponding cell pairs is proposed by Optimizer algorithms. If no corresponding cell pair can be identified, the operator will be informed about possible mismatch in the configuration. The operator can decide, if he would like to activate the proposed changes in the network or discard them or would still like to change them. The generation of cell candidates can be triggered during auto configuration or on manual trigger by operator. The functionality will be applied for the eNBs / cells in the network for which carrier aggregation is enabled. HW Requirements: no specific HW requirements Interdependencies between Features: LTE1089 Downlink carrier aggregation - 20 MHz Future Carrier Aggregation features Future InterRat load balancing features

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Nokia Solutions and Networks LTE RAN SW Sales Information: BSW/ASW ASW NetAct

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Licence Control in Network Element NetAct


6.2.2 System Upgrade with Backward Compatibility Unique ID: 1368 Short Description: This feature enables the smooth upgrade from major release (RLxx) N-1 to release N in the overall network. Benefits for the Customer: Smooth remote upgrade path from major release N-1 to release N. Functional Description: Following functionality is supported with the upgrade from release N-1 to release N: 1) The upgrade from release N-1 to release N is possible in one step. No intermediate SW versions are necessary to be installed. The impacted NEs are the Flexi Multiradio BTS, NetAct with all LTE relevant applications including Optimizer, Trace Viewer, the Northbound interfaces and the iOMS; additionally Traffica and Layer3 Data Collector as introduced with LTE1340 in RL40 and under consideration of additional evolution steps. 2) All operator-configured data are maintained in the system. If necessary, configuration data is converted into new format. This implies that the data from the previous release can be re-used after the upgrade. No manual intervention is required. This data does include · Most obvious all configuration data of the Flexi Multiradio BTS, iOMS, NetAct, L3DC and Traffica · Adaptations done by operator for different (graphical) presentations in BTS SM or NetAct, for example: top level user interface: topology view, as for example: · PM configuration 3) System data will be stored before system upgrade. A user-friendly backup concept is in place. The data will be available after upgrade. This data does include as for example:


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· Measurements, as PM data PM data which is not yet uploaded to NetAct before System Upgrade activation in Flexi Multiradio BTS will be lost. · User security, as data like user accounts/passwords, log files, .. . Network security, as data like certificates, keys, .. 4) Command line/script execution In case there are command line or scripts used they need to be backward compatible or a converter is in place for the upgrade support from release N-1 to release N. 5) NetAct is prepared to handle both NE releases (release N-1, release N) with release N timeframe. A mixed configuration support is ensured. 6) BTS SM is prepared to handle both NE releases, at least as co-existing versions of BTS SM with release N. 7) Layer3 Data Collector is prepared to handle both NE releases. 8) Traffica is prepared to handle both NE releases. 9) If a conversion of the data is required the related converter Software is available either in online or offline mode. 10) An LTE system wide top-down upgrade sequence is defined. 11) The downtime of a network entity during the system upgrade is reduced to the activation of the new software. The switch to the new release (activation of the software) will be performed on operator request from NetAct or BTS SM. Traffica and L3DC are supporting local SW management, no remote handling.

12) In case of an upgrade failure, an automatic fallback to the original release takes place. In addition the fallback can be initiated from the operator on command. For L3DC and Traffica a manual rollback can be initiated by operator. The fallback has to consider as well the correct CM database and the consistency between them needs to be ensured. The automatic fallback is available for Flexi Multiradio BTS. 13) A delta description lists all differences to the old version as part of the customer documentation. This is valid for all data. 14) This feature does not include the upgrade of any HW.


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RL50 release-specific 1) Different Flexi Multiradio platforms Upgrade paths are supported for Flexi Multiradio platforms as • FSMr2 to FSMr2 This is valid for configurations which can be fullfilled with FSMr2 configurations in RL40.

• FSMr3 to FSMr3 This upgrade path supports the configurations of FSMr3 within RL40 as FSMF only setup. See here for valid configurations: LTE621 2) New entities in LTE network Additional new entities are considered for upgrade first time - as they have been introduced in RL40: • Layer3 Data Collector • Traffica HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0


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6.2.3 Cell Specific neighbor relation / PCI handling Unique ID: 1383 Short Description: This feature allows enhanced usage of ANR- and HO-related features even in non perfect network setup conditions. Following enhancements are included:


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1) Neighbour Relations are resolved and handled on eNB cell level (i.e. uniqueness of PCI/Freq for all neighbour cells on eNB level is no longer required). For different eNB cells, NRs with the same PCI (but different ECGI) and carrier are configurable. This is available with • LTE782 ANR fully UE based, intra-frequency. It will also be available with • LTE556 ANR fully UE based, inter-frequency, when the feature itself is supported Cell specific neighbor relations can also be created by operator as • OAM assigned neighbor relations (intra / inter-frequency). 2) PCI management in NetAct Optimizer offers the eNB cell level PCI assignment. 3) ANR Profiles for easy setup of respective ANR features per frequency 4) Systewide support of up to 64X2 links Benefits for the Customer: ANR features work more robust in network deployments with repeated PCIs in close distance. Networks are not always setup in a manner that all consistency rules are fulfilled, as for example PCI collision is not avoided completely on eNB level. Functional Description: Cell Specific neighbor relation / PCI handling introduces additions to the existing ANR features to allow enhanced usage of ANR and HO related features even in difficult network setups. Following improvements are added: 1) Cell specific PCI resolution The existing ANR features are based on the concept that the PCI information of a cell is an eNB wide unique information per frequency. As over the time the networks are growing or significant distances between the cells of one eNB might be applied, it might happen that different cells of one eNB detects different neighboring cells with same PCI and frequency, but different ECGI. This feature introduces that the PCI information is used cell specific per frequency in the eNB. The PCI / ECGI information is resolved based on CGI measurements. The CGI measurements are triggered by an eNB cell when • a new neighbor cells is detected by an UE and this neighbor cell is added as new neighbor relation to the eNB cell or more simple stated • when the PCI is needed for handover. This is available with


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• LTE782 ANR fully UE based, intra-frequency. It will also be available with • LTE556 ANR fully UE based, inter-frequency, when the feature itself is supported. Cell specific neighbor relations can also be created by operator as • OAM assigned neighbor relations (intra / inter-frequency). Neighbor relations, respectively PCI resolution based on LTE492 ANR feature are kept on eNB level. 2) Extended PCI management in NetAct Optimizer Netact Optimizer considers PCIs on eNB cell level in case of existing eNBs and existing neighbor relations for PCI conflict handling. For newly planned eNBs the PCI assignment is still done as before on eNB wide level. 3) ANR Profiles ANR profiles allow an easy setup of respective ANR features per eNB cell and target frequency for the operator. Per cell and target frequency only one ANR method can be applied. By selecting e.g. UE based ANR for a cell and target frequency, other ANR mechanism, as e.g. LTE492, will not be used (and e.g. the PCI value will be resolved via CGI measurements, instead of checking the PCI/IP table). 4) Systewide support of up to 64 X2 links Additionally to the cell specific PCI handling the maximum number of X2 neighbor eNBs are increased from 32 to 64 in a systemwide setup. In Flexi Multiradio BTS up to 64 X2 links are supported already with RL40. Now as well the configuration of up to 64 X2 links is supported from NetAct Optimizer for LTE539 Central ANR feature.

HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0

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6.2.4 InterRAT neighbor relation Optimization (LTE, UTRAN, GERAN) Unique ID: 507 Short Description: NetAct Optimizer supervises all registered Inter-RAT neighbor cell relations between LTE-cells and non-LTE cells their performance is qualitatively good enough so they should be used for handover execution When the outcome results in an inefficient neighbor relation the according neighbor cell relation may be blacklisted for handover. Benefits for the Customer: The operator can reduce operating expenses (OPEX) due to reduced workload in managing neighbor relations. The feature increases the grade of service for the end user by maintaining well performing and robust neighbor relations (mobility procedures). Functional Description: NetAct Optimizer utilizes Flexi Multiradio BTS configuration information and performance counters (Inter-RAT HO-counters) in order to perform the analysis task. The evaluation may result in no action or blacklisting of a neighbor cell relation. Even speaking about handover: it is not restricted to handover only, but also other mobility procedure are meant, as e.g. eNACC. Here the term blacklisting is used, which is a term used to indicate that a handover shall not happen. Modelling uses allowed and forbidden entries. The following use cases are supported: Neighbour cell relations which have an insufficient handover performance (e.g. weak handover success Rate; threshold is operator configurable) may be blacklisted by an optimization mechanism or, optionally, manually by an operator. Neighbours cell relations which had been blacklisted, can be whitelisted/enabled again by the operator (e. g. if an operator wants to re-evaluate the performance of a formerly blacklisted neighbor relation due to changed environment/toplogy). Neighbours cell relations can be marked by an operator in a way that they are excluded from optimization. NOTE: In case of a neighbor cell is blacklisted any outgoing handover to the target cell is not allowed. Possible results of optimization mechanisms. - No action:


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An analyzed relation showed no suspect behavior - Blacklisting: A given relation was identified to be unreliable/weak performing. NetAct suggests a new configuration plan file with updated entries for appropriate Telecom/RRM black lists. The changes, proposed by optimization algorithms, can be taken over automatically (without any operator interaction) or after confirmation by the operator. Which one of both is configurable by O&M. HW Requirements: no specific HW requirements Interdependencies between Features: N/A RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0

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6.2.5 RACH Optimization Unique ID: 962 Short Description: The feature offers the optimization of PRACH / RACH parameters which are used in the Flexi Multiradio BTS with the Optimization by Resolution of Collisions and Inconsistencies. RACH Optimization is following TS 36.902 definition, but still considering central approach as defined with LTE581 PRACH management. Benefits for the Customer: Collisions and Inconsistencies are avoided which otherwise may lead to decreased PRACH/RACH detection probability as well as interference to and from other cells and physical channels Functional Description: This feature offers the optimization of PRACH / RACH parameters values by Resolution of Collisions and Inconsistencies. Optimization by Resolution of Collisions and Inconsistencies Definition of terms · Collisions:


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PRACH/RACH allocation of the cells of two eNBs within the PRACH reuse distance collide, as e.g. Two cells withing a PRACH reuse distance having the same PRACH parameter configuration. · Inconsistencies: PRACH/RACH allocation not in line with other own cell parameters Following situations area seen which may lead to Collisions or Inconsistencies after 1st assignment of PRACH / RACH parameter assignment with LTE581: · eNB is/was manual configured · eNB parameters relevant for PRACH/RACH allocation are changed after auto-configuration process of eNB · Change of network topology (add new eNBs with auto-configuration process, however due to LTE581 no change of already configured eNBs is performed, and therefore collision free PRACH allocation could not be performed) · Change of antenna location e.g.: use of distributed sites The impact of possible collisions can be seen as e.g.: · Decreased PRACH/RACH detection probability or increase of false detection probability · Interference to and from other cells · Decreased overall system/network performance The parameters which are optimized are: · PRACH cyclic shift · PRACH configuration index * · PRACH frequency offset · PRACH Root sequence * PRACH preamble format is also assigned in the algorithm as the PRACH configuration index is defining the PRACH format and the PRACH position time wise, as well as the RACH density. The optimization for the collision / inconsistency resolution can be applied for · Single eNB and all its subordinate cells or individual cells · Dedicated List of eNBs and all their subordinate cells · all eNBs of NetAct Region It can be executed by · Manual trigger using NetAct Optimizer user interface The optimization for the collision / inconsistency resolution can be executed in following manner:


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· Automatic Algorithms executes stepwise collision resolution. a) create new PRACH configuration set by using PRACH optimization procedure for first cell, and if collision can be solved stop optimization and download this configuration to eNB. b) If not then perform the same procedure for second cell, and download new parameter set to affected eNBs in case collision can be solved.c) If no collision free allocation can be found, inform operator. · Semi automatic Plan is proposed to the operator. When the stop point is activated, the plan provisioning takes only place when operator confirms. Change everything - perform new PRACH planning for all eNBs and subordinate cells within area of interest and all eNBs within their PRACH reuse distance (either manual using NetAct user interface, automatic or semi-automatic). The data used in this optimization algorithm are based on the configuration information of the own cells and of the surrounding cells and potentially performance feedback from network. The optimization algorithm is working centrally in NetAct. PRACH settings which shall not be changed by the optimization can be marked by operator and especially PRACH settings which are not managed by this NetAct regional cluster are taken into consideration without proposal to change. The feature is optional and can be configured by operator via NetAct Optimizer. Configuration changes applied in network are included to the SON reports. HW Requirements: no specific HW requirements Interdependencies between Features: Feature Dependencies· LTE581 - PRACH Management required. RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0

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6.3 O&M Security 6.3.1 Multi-layered Certificate Authorities Unique ID: 523 Short Description: This feature provides supports operator certificate management for multilayer hierarchical PKI and cross-certified PKI structures by Flexi Multiradio BTS. Benefits for the Customer: The customer is able - To integrate Nokia Solutions and Networks Identity Management System as sub-ordinate CA into its existing PKI - deploy an own/3rd party sub-ordinate CA to manage certificates for the Flexi Multiradio BTS Functional Description: Supported PKI models: The Flexi Multiradio BTS supports multi-layer hierarchical PKI. Multi layered hierarchies allow the operator to integrate Nokia Solutions and Networks Identity Management Solution as subordinate CA into the operators existing/own PKI infrastructure and/or allows to integrate the Flexi Multiradio BTS into any 3GPP compliant 3rd party PKI architecture. Chain of trust: The Flexi Multiradio BTS has the complete trust chain for its own operator eNB certificate stored and optionally the trust anchor of a second operator in case of RAN Sharing (multi core operator network configuration). When validating the remote peers certificate the BTS steps up the trust chain until the according trust anchor is found (a self-signed root CA certificate). If the entity certificate of the remote peer is not directly signed by a root CA then it sends the certificates of the involved subordinate CA(s) as part of the secure connection establishment. On the other hand the BTS sends the certificates of the own subordinate CA(s), if any, as well to the remote peer. eNB Operator certificate and trust anchor enrolment: The common rules for certificates and the enrolment of operator eNB certificates follow 3GPP Release 9 TS 33.310 Network Domain Security - Authentication Framework. The Flexi Multiradio BTS uses the vendor certificate for initial authentication. SHA-1 and SHA-256 are supported as hash algorithms for operator certificate signs and Signing CA key length of up to 8192 bit. The trust anchors (root certificates) are stored as a pool of valid certificates. The own trust chain is either delivered via CMP protocol exchange from the RA/CA or manually via the BTS Site Manager. The Flexi Multiradio BTS supports a chain of trust of 4 layers, i.e max. 3 sub-ordinate CA layers. Optionally a second trust anchor of a second operator in case of multi core operator network configuration can be installed with the BTS Site Manager.


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Operator certificate and trust anchor life cycle management: The Flexi Multimode BTS renews its operator certificate automatically before the lifetime expires. In addition the operator is able to use the NWI3 Mediation Fragment Configuration Tool or the BTS Site Manager to trigger the operator certificate update on demand from remote. Note: the update of the operator certificate (key update) is authenticated by the current operator certificate whilst the initial enrolment (key initialization) uses the Nokia Solutions and Networks vendor certificate or PSK/refnum for initial authentication.

When the trust anchor is close to expiring the eNB sends a notification to NetAct. The operator may now add a new trust anchor with the BTS Site Manager. Note: an expired or unneeded trust anchor can be deleted from the Flexi Multimode BTS trust pool with the NWI3 Mediation Fragment Configuration Tool or the BTS Site Manager.

Certificate revocation: Received certificates from remote peers are checked if they are revoked. Only the CRL addressed by the own BTS entity certificate is taken into account, CRL given by the received peer certificate or of any sub-ordinate CA is not followed. In case the CRL distribution point is given as FQDN the according IP address is resolved by DNS query. The list is downloaded from


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the CRL distribution point via LDAPv3. The update of stored CRLs is done regularly by the Flexi Multiradio BTS or manually triggered from NetAct on demand. Note: if in case of RAN sharing the peer certificate is signed by a 2nd operators PKI then the revocation check is not executed. HW Requirements: no specific HW requirements Interdependencies between Features: no feature interdependencies RL Software Dependencies: BTS LTE Flexi Release RL50 LBTS5.0


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6.4 OMS specific features 6.4.1 iOMS Certificate update and revocation support Unique ID: 1260 Short Description: The iOMS supports the automated certificate life cycle management by autonomous update of the operator entity certificate. This iOMS certificate can be signed by a multilayer PKI system comprising sub-ordinate CAs and the root CA on top. Revocation lists provided by the signing of the remote peers are loaded and regularly updated. Benefits for the Customer: The customer is able to use a usual Public Key Infrastructure with a Root certificate Authority on top and use case specific sub-ordinate Certificate Authorities in charge for signing the RAN nodes also now for iOMS nodes. 3GGP compliant life cycle management allows flexibility on PKI vendor selection and harmonized certificate management for iOMS in the same fashion as for BTS and Security Gateways which leads to severe OPEX reductions. Functional Description: This Certificate Management feature supports the autonomous update of the iOMS operator certificate and the provision of revocation information to the secure transport layers like TLS or HTTPS. With the help of the revocation lists the secure transport layers can check if it is allowed to establish a secure connection to a particular remote communication peer. 3GPP compliant life cycle management:


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The CMP protocol and procedures are implemented according the profiling done by 3GPP TS 33.310, in particular for trust anchor delivery to iOMS and CMP message signing by the Certificate Authority or alternatively by the Registration Authority terminating the CMP protocol session. Multilayer Support: The iOMS certificate can be signed by a trust chain, e.g. the iOMS entity certificate is signed by a sub-ordinate CA which itself is signed by the Root CA. The iOMS has the complete trust chain for its own operator certificate stored and supports a chain of trust of 4 layers, i.e. max. 3 subordinate CA beyond the Root CA. Automated iOMS operator Certificate update: The CMPv2 protocol implementation is enhanced by the key update procedure. The iOMS renews its operator certificate automatically before the lifetime expires. In addition the operator is able to use the NWI3 Mediation Fragment Configuration Tool to trigger the operator certificate update on demand remotely. Trust anchor deployment & update: The trust anchors - Root CA certificate and optional sub-ordinates CA certificates - are either delivered via the CMP protocol exchange for key signing request or key update or by manually iOMS set-up configuration (files in PKSC#12 or PEM format). When one of the trust anchors is close to expiring the iOMS sends a notification to NetAct. Local certificate enrollment: If the operator has no online PKI in service then it is possible to load the operator certificate and trust anchors manual as part of the iOMS set-up configuration procedures by files. The off-line created key-pair and the according certificate are included within a passphrase protected PKCS#12 file; in addition certificates and RSA keys are accepted as PEM formatted files. 3GPP algorithms: In addition to SHA-1 the iOMS supports SHA_256 as hash algorithm for certificates as required by 3GPP TS 33.310 chapter 6.1.1 Common rules to all certificates. Certificate Revocation check: CRL support can be activated / deactivated in common by operators configuration. If activated the iOMS performs the CRL housekeeping. CRL distribution points (CRLDP) given by certificates of the own PKI: By default the iOMS uses found CRLDP received within a peer entity certificate and all subordinate CA certificates of the peers trust chain to address and download the CRLs for the own


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PKI. The BTS downloads and updates these lists automatically from the LDAP servers. In addition the operator is able to trigger the update with the NetAct NWI3 Mediation Fragment Configuration Tool Configurable CRL distribution points: Alternatively configurable CRL sources are available (IP addresses/FQDN and path). The iOMS offers 10 additional CRL distribution points which can be configured with CRL IP addresses/FQDN and path. HW Requirements: no specific HW requirements Interdependencies between Features: "LTE524 Certificate Management for iOMS" is a precondition for LTE1260, LTE1260 can't be used on its own. RL Software Dependencies: BTS LTE Flexi Release RL50 -


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6.4.2 Remote SW-management and data backup/restore support for iOMS Unique ID: 1405 Short Description: This feature requires implementation of following functional enhancements for iOMS management. • Remote SW-management for iOMS iOMS SW incremental deliveries can be handled remotely with NetAct SW management tool/application • iOMS Data Backup and Restore Solution Backup files can be uploaded and stored remotely to NetAct. Benefits for the Customer: • OPEX-savings by introducing remote SW-management for iOMS - The SW management for iOMS can be done with same tool as for other network elements.


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- The SW management does not any more require manual element specific commaning by CLI. Many instances of iOMS can be handled at the same time. The SW - Management supports Incremental Deliveries only (minor SW-updates SW-corrections).

• Opex-savings by introducing solution for iOMS remote Data Management - Backup files can be dowloaded and stored remotely to NetAct. - Use case 1 : During the iOMS upgrade process as a pre-step. - Use Case 2: Regular backup process can utilize this support. This alleviates the scripts maintenance/development or other tasks used till today. Functional Description: • Remote SW-Management for iOMS This feature enables a NetAct user to do remote iOMS SW management supporting Incremental deliveries. Operator has possibility to perform iOMS SW downloads and activations with NetAct SW Management application. iOMS Incremental Deliveries can be remotely installed and activated. Major SW Upgrades are still done via CLI. • iOMS Data backup and restore solution The solution enables managing the iOMS configuration with NetAct (and iOMS Element Manager) by taking backups of the iOMS configuration data and transferring the backups from the iOMS local disk to a safe remote location. The remote backup storage location can be NetAct or other remote location. This feature does not change the backup procedure, all current backup variations will be supported (partial, full or custom backup). Restriction: Full Restore from remote is not supported, only partial and custom restore are supported from remote. HW Requirements: no specific HW requirements Interdependencies between Features: N/A

Nokia Solutions and Networks LTE RAN RL Software Dependencies: BTS LTE Flexi Release RL50 SW Sales Information: BSW/ASW BSW

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BTS Flexi 10

NetAct

OMS

MME

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-

SAE GW -

UE n/a


NSN-RL50 New Features

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