NSN-RL50 New Features

(1)

LTE RAN Release RL50

New Features

(2)

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.

(3)

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.

(6)

2 History

Version Date Comments

(7)

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

(8)

HW Requirements: no specific HW requirements Interdependencies between Features: .

RL Software Dependencies: LTE BTS Flexi BTS Flexi 10

NetAct OMS MME SAE

GW UE Release RL50 LBTS5.0 - - - 3GPP R8 UE capabilities SW Sales Information:

BSW/ASW Licence Control in Network

Element

Licence Control Attributes

BSW - -

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.

• 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

(9)

• 1/3 of DC and 2/3 of optical cabling compared to 3 sector site with Remote RF Heads (RRH)

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)

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.

Element

(10)

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:

LTE BTS Flexi

BTS Flexi 10

GW

UE

(11)

SW Sales Information:

Element

BSW - -

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

(12)

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:

GW

UE

Release RL50 LBTS5.0 - - -

Element

BSW - -

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

(13)

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

GW UE Release RL50 - OSS5.5 CD1 - - 3GPP R8 mandatory SW Sales Information:

Element

(14)

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

(15)

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

GW UE Release RL50 - OSS5.5 CD1 - - 3GPP R8 UE capabilities SW Sales Information:

Element

ASW SW Asset Monitoring -

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

(16)

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:

GW

UE

Release RL50 - - - - n/a

Element

(17)

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: LTE BTS Flexi BTS Flexi 10

Element

(18)

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.

• 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´

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

(19)

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.

RL Software Dependencies:

GW

UE

Element

BSW - -

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.

• 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´

(20)

• less visual impact

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

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.

GW

UE

Element

BSW - -

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.

(21)

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

• 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:

• typically 1/3 of DC and optical cabling compared to site with Remote RF Heads (RRH) • easier installation

• 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

(22)

Element

BSW - -

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

GW

UE

(23)

Element

ASW - -

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.

• 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)

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)

(24)

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: LTE BTS Flexi BTS Flexi 10

Element

BSW - -

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)

(25)

• IP65 with -35 to +50 °C with convection coo ling • external alarms and outputs (as with 2TX RRH)

Element

BSW - -

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

(26)

-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

(27)

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).

GW UE Release RL50 LBTS5.0 OSS5.5 CD1 - - n/a SW Sales Information:

Element

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).

(28)

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.

GW UE Release RL50 - OSS5.5 CD1 - - SW Sales Information:

Element

(29)

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.

(30)

(31)

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)

GW

UE

Release RL50 - - - - n/a

Element

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)

(32)

Element

BSW - -

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

• 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

(33)

• 0ne 3-sector Module more cost effective than 3 x RF Head in feederless installations because:

• typically 1/3 of DC and optical cabling compared to site with Remote RF Heads (RRH) • easier installation

• 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

Element

(34)

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

GW

UE

(35)

Element

BSW - -

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:

(36)

HW design is based on Rel2.3 platform (MERA ASIC).

GW

UE

Element

ASW - -

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 WCDMA-LTE 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

(37)

Interdependencies between Features: no feature interdependencies RL Software Dependencies: LTE BTS Flexi BTS Flexi 10

GW

UE

Element

(38)

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:

(39)

HW Requirements: Flexi MR10BTS

Interdependencies between Features: Requires LTE523 "Multi-layered Certificate Authorities" RL Software Dependencies:

GW

UE

Release RL50 - - - - n/a

Element

(40)

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

GW

UE

Release RL50 LBTS5.0 - - - 3GPP R9

(41)

Element

BSW - -

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.

(42)

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: LTE BTS Flexi BTS Flexi 10

Element

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.

NSN-RL50 New Features

LTE RAN Release RL50

New Features

Table of Contents

1 Introduction

2 History

3 BTS Site Solution

3.1 FRHC Flexi RF Module 6TX 2600

3.2 FRMC Flexi RF Module 6TX 800

3.3 240 W Multiradio Remote RF

3.4 GNSS Receiver FYGB

3.5 Cell Bandwidth - 3 MHz

3.6 Cell Bandwidth - 1.4 MHz

3.7 Multiradio System Module extended LTE configurations

3.8 FHEB Flexi RRH 2TX 1800

3.9 FRPA Flexi RF Module 6TX 700

3.10 FRPB Flexi RF Module 6TX 700

3.11 FXDB Flexi RF Module 3TX 900

3.12 RF sharing LTE-GSM with 3rd generation System Module for LTE

3.13 FRHF Flexi RF Module 6TX 2600

3.14 FRHE Flexi RRH 4TX 2600

3.15 RF sharing WCDMA-LTE

3.16 LTE Dual carrier operation within one RF band

3.17 4-way RX diversity

3.18 FRHD Flexi RRH 4TX 2600

3.19 FXDA Flexi RF Module 3TX 900

3.20 FBBA Flexi Capacity Extension Sub-Module

3.21 FRGT Flexi 3-sector RF Module 2100

3.22 FRGS Flexi 3-sector RF Module 2100

4 Transmission

4.1 Transport Separation for RAN Sharing

5 Radio Resource Management and Telecom

5.1 Mobility

5.1.1 RSRQ based cell reselection

5.1.2 TDD - FDD handover

5.1.3 Inter eNode B IF Load Balancing