09 - SRAN On Baseband Dimensioning

 

SRANradioplanningand dimensioningtopics[SRAN16.2]

 

SRAN on baseband dimensioning

 

Section Objectives •

 At the end end of this section section you will be be able to:

- perfo perform rm baseb baseband and dime dimensio nsioning ning in SRAN deplo deploymen yments ts

 

Section Content •

Impact of SRAN on baseband dimensioning -

How baseb baseband and dimens dimension ioning ing is affec affected ted by SRAN SRAN config configura uratio tions ns

 

SRAN products and architecture What is SBTS? -

SRAN16 SRA N16.2 .2 relea release se intro introduc duce e a new Sing Single le RAN RAN BTS. BTS.

-

SBTS is is a Flexi Flexi Multiradi Multiradio o 10 Base Base Station Station that that has new operabi operability lity and SW archite architecture cture that enables enables:: 1. SBT SBTS S Syste System m Modul Module e Shar Sharing ing wi with th shar shared ed RF fiber fibers s

-

2. New OAM Arc Archit hitectu ecture re and SBT SBTS S comm common on OAM 3. SB SBTS TS Co Comm mmon on Tra rans nspo port rt The system system module module type type required required is is FSMF i.e. i.e. HW release release 3 of System System Module Module (FSMr3) (FSMr3)

RF RF

RF GSM

WCDMA TRS

TRS backhaul

OAM

LTE System Module

Netact

 

SRAN products and architecture Nokia Single RAN is designed to meet the operator needs for Multiple RATs RATs

Supporting multiple Radio Access Technologies with common or shared functionalities GSM WCDMA LTE TD-LTE

HW sharing

Common Op Operability

Common Tr Transport

Features for improving the Single RAN network performance

Nokia SRAN : key elements RF

Multiradio capable HW

> BTS RF, RF, BTS baseba baseband, nd, Control Controllers lers > Enabling flexibility in reconfigurations and resource utilization between RATs

Single RAN SW

> SRAN SW product product incl. incl. Single Single RAN features features and RAT features

Value adding functionalities

> > > >

Spectrum Spectru m refarmi refarming ng RAN shari sharing ng betwe between en CSPs CSPs Traffi Tra ffic c ste steeri ering ng Serv Se rvic ices es

GSM

RF

S B T

RF

WCDMA

LTE

BTS baseband

TRS

GSM

WCDMA Controllers

S OSS

 

SRAN products and architecture SRAN release is a new SW product including new SBTS software GSM - no change change

Dedicated GSM EX / GF

SRAN

 –

new product

SRA SR AN **

WCDMA WCDM A - no change change

FDD-L FDDLTE - no change

TD-LTE TD-L TE - no change

Dedicated WCDMA Dedicated FDD LTE Dedicated TD LTE

SBTS

WBTS

FL

TL

WCDMA application

FDD LTE application

TD LTE application

GSM application GSM application

WCDMA application FDD LTE application

GSM BTS O&M

Common O&M

WCDMA BTS O&M

LTE BTS O&M

LTE BTS O&M

GSM transport

Common Transport

WCDMA Transport

LTE BTS Transport

LTE BTS Transport

BSC / mcBSC BSC/mcBSC* BSC / mcBSC BSC3i RNC / mcRNCRNC/mcRNC*RNC / mcRNC (1000/200) OMS

OMS*

OMS

LTE iOMS*

iOMS

*) RNC OMS, BSC/mcBSC / BSC3i (1000/2000)and RNC/mcRNC RNC/mcRN C instances are re-used as such in SRAN without any change. LTE iOMS is not needed **) SRAN 16.2 targets feature parity with parallel RAT releases, i.e. GSM 16, WCDMA 16 and LTE-FDD 16

 

SRAN products and architecture SBTS brings a fundamental change to Flexi MR 10 BTS Software Architecture Architecture

GSM BB TRS

RF

RF

RF

OAM

WCDMA BB TRS

OAM

RF

RF

LTE BB

GSM

TRS

RF WCDMA

OAM TRS

TRS backhaul

GSM

OSS WCDMA

Site with traditional approach RF Unit sharing Dedicated System Modules for RATs Dedicated RF fibers per RAT Shared transport backhaul •

•

• •

TRS backhaul

LTE

OAM

LTE System Module

OSS

Site with Single RAN solution New operability and SW architecture enables Common BTS OAM System Module sharing with shared RF fibers Common Transport •

•

•

 

SRAN products and architecture SRAN 16.2 Highlights New SBTS Software

Common BTS OAM

One base station for GSM, WCDMA and LTE radio technologies

Common handling in Netact, Simplified site creation, commissioning and config.

Based on Flexi Multiradio 10 Base Station System Module

Supporting single radio all radioradio- and TRS SW upgrades upgrades

Common backhaul IP transport

System module sharing

One IP host and interface

Extremely compact sites

One IP address and IP security

Lower energy consumption

No external IP transport boxes

Scalable capacity

 

SRAN products and architecture SRAN OAM architecture Support for enhanced pre-integration and off-line validation

NetAct

NE3S

Web UI

Web UI Element Management Tool

SBTS OAM

NetAct

NE3S

SBTS SBTS OAM

 Architectural improvements improvements Common BTS OAM Flat O&M architecture, no OMS Decoupling of O&M and RAT SW Web UI based common SBTS Element Manager  Manager   Adding supported BTS configurations without without dependency to SBTS SW

LTE

• •

TRS

• • •

BTS

WCDMA

GSM

BTS Platform SW

 

SRAN products and architecture SRAN comes with consolidated NetAct

Note: NetAct supports multi-RAT multi-RAT already

NetAct

NetAct NetAct

NetAct

OSS

OSS

LTE WCDMA

WCDMA GSM •

GSM

LTE

NetAct setup with single RAT RAT networks can be fragmented between RATs

SRAN network Including RNC and BSC  

•

•

SRAN network is operated with one NetAct per area Complete network view in management system

 

SRAN products and architecture Web UI for BTS element management

•

Web UI replaces BTS Site Manager for SBTS

•

Can be used both locally and remotely

•

Works with a standard Web browser 

•

No need to install additional SW on the client side

•

•

Web UI

http

New tool with modern user interface and high usability One element manager for SBTS

SBTS OAM

LTE TRS

SBTS

WCDMA

GSM

BTS Platform SW

 

SRAN baseband Before & after 

Before Befor e - Class Classical ical RF sharing sharing

SRAN introduced (SBTS 16)

RF sharing

RF sharing

900

900

RF sharing

GSM LTE System Module System Module

GSM WCDMA System Module System Module

Common System Module (LTE + WCDMA + GSM)

900

1800

GSM WCDMA System Module System Module

LTE System Module

Each RA RAT T requires dedicated System Module

One common System Module supporting up to 3 RATs and dedicated / shared RF modules

 

SRAN baseband SBTS 16 - Flex Flexii Multiradio Multiradio 10 Base Base Station Station

SRAN 16 LTE System Module

System Module sharing

+

WCDMA System Module

+

GSM System Module

FSMF System Module (plus optional capacity extension FBBA/C cards)

Common O&M

Up to 3 RATs sharing FSMF System Module. BB capacity statically distributed among RATs

Note: FSMF and future HW is foreseen to support Single RAN SW

Common Transport

 

SRAN baseband Flexi Multiradio 10 System Module (SM)  – Product highlights

Flexi Multiradio 10 BTS

Easy capacity expansion

Integrated common transport

FSMF System Module

 Add-in submodules

Common (LTE/WCDMA/LTE) transport

Share LTE/GSM WCDMA/GSM LTE/WCDMA LTE/GSM/WCDMA

FBBA/C card Optional module subexpanding SBTS BB capacity

IP/Eth backhaul

 

SRAN baseband SBTS 16/16.2 16/16.2 - Flexi BTS System Module

SBTS

SBTS 16.2 planned support: WCDMA: LTE: - FSMF - FBBA* - FBBC

- FSMF

GSM: - FSMF

- FBBA - FBBC

System Module rel.3 FSMF + FBBA/C and future HW

Note: WBTS supports FSMF and FBBA cards only SBTS 16 PT supports FSMF and FBBC cards * FBBA support for LTE planned (16.2) / please confirm with SRAN PMs before communicating to customer 

 

SRAN baseband

FBBA/C bb capacity = 6 subunits

FBBC usage in WCDMA FSMF + 2x FBBA FBBA

•

6 x OBSAI interface for Radio Modules

FSMF + 2x FBBC FBBC

 

• •

8 x OBSAI interface for Radio Modules 1 x OBSAI cable needed between FSMF and each FBBC

FBBA and FBBC have exactly same baseband capacity i.e. 6 subunits for traffic use FBBC has 4 x OBSAI ports for Radio Modules in front panel, compared to 1 x OBSAI port in FBBA For WCDMA 1 x OBSAI cable would be needed between FSMF and FBBC if more than one dedicated WCDMA RF units connected to FBBC  each FBBC adds only one OBSAI port more in configuration compared to FBBA RF connectivity need comes in multi-RAT multi-RAT sites and RF sharing cases which which are typical SRAN cases • •

•

FBBC

will be supported in WCDMA in SRAN 16. Both in WCDMA dedicated mode and in Multi-RAT mode

 

SRAN baseband SBTS baseband resources sharing

How SBTS baseband resources are shared between RATs ?

 

SRAN baseband SBTS baseband resources sharing

SBTS supported RAT combinations: 1 RAT:

2 RATs:

3 RATs:

- GSM

- GS GSM M + WCD WCDMA MA

- GSM + WCDMA WCDMA + LTE LTE

- WC WCDM DMA A

- GSM + LTE LTE - WCDM WCDMA A + LTE LTE

- LTE

System Module sharing combinations

 

SRAN baseband SBTS baseband resources sharing •

BTS baseband capacity allocation between activated RATs RATs is statically assign with FSMF or FBBA/C card granularity, with one exception mentioned below: granularity, FSMF baseband capacity can be shared between: •

-

•

GSM and LTE

•

GSM and WCDMA

Note: In System System Module Module shari sharing ng mode mode GSM GSM is is always always allocate allocated d at FSMF (not FBBA FBBA/C /C card) card) GSM

•

WCDMA

GSM

 Additional baseband resources for WCDMA or LTE LTE can be allocated with FBBA/C cards.

GSM

WCDMA •

LTE (RCS conf)

WCDMA

GSM

WCDMA

WCDMA WCDMA

FSMF or FBBC card baseband capacity cannot be shared between LTE and WCDMA . WCDMA

WCDMA

LTE LT E

 

SRAN baseband

GSM

SBTS baseband resources sharing •

•

WCDMA

GSM and WCDMA System Module sharing mode Depending on available FBBA/C cards SBTS provides the following baseband resources for WCDMA RAT.

SBTS

GSM

WCDMA subunits

24 TRX

3,5 su

24 TRX

9,5 su

FSMF GSM

WCDMA

GSM

WCDMA

FSMF + FBBA/C WCDMA

FSMF + 2x FBBA/C 24 TRX

15,5 su

GSM

WCDMA

WCDMA WCDMA

 

SRAN baseband

LTE

SBTS baseband resources sharing

There are three LTE baseband SW allocation types, depending on LTE radio configuration (supported bandwidth / # cells / features): •

Reduced Cell Set (RCS)

•

Basic Cell Set (BCS)

•

Extended Cell Set (ECS)

Each configuration affects BB allocation (-> amount of FSMF/FBBC cards) Reduced cell set (RCS) •

•

up to 3x10MHz LTE 2x2 MIMO with CoMP in FSMF up to 4x10MHz LTE 2x2 MIMO without CoMP in FSMF  Allows to allocate LTE and GSM (up to 24 24 TRXs) in same FSMF

FSMF core baseband baseband capacity shared between LTE and GSM shared

Basic cell set (BCS) up to 6x10MHz LTE 2x2 MIMO up to 3x10MHz LTE 4TX/4RX up to 3x20MHz LTE 2x2 MIMO 4TX/4RX = 4x2MIMO, 4x4MIMO or/and 4RX diversity mode • • •

Requires whole FSMF or FBBC card for LTE processing

Extended cell set (ECS) •

3x20MHz LTE with 4TX/4RX capability

Extended cell set between 2 FBBCs is not supported. supported. Requires whole FSMF and 1x FBBC card for LTE processing

 

SRAN baseband

LTE

SBTS baseband resources sharing Reduced cell set (RCS) up to 3x10MHz LTE 2x2 MIMO with CoMP in FSMF up to 4x10MHz LTE 2x2 MIMO without CoMP in FSMF

•

•

LTE + GSM (up to 24 TRXs)

GSM

FSMF

Basic cell set (BCS) up to 6x10MHz LTE 2x2 MIMO up to 3x10MHz LTE 4TX/4RX up to 3x20MHz LTE 2x2 MIMO

•

•

•

LTE allocation in LTE FSMF or FBBC card

or  FSMF

FBBC

4TX/4RX = 4x2MIMO, 4x4MIMO or/and 4RX diversity mode

Extended cell set (ECS) 3x20MHz LTE with 4TX/4RX capability Extended cell set between 2 FBBCs is not supported. supported. •

FSMF + FBBC

LTE allocation in FSMF and FBBC card

Note that different LTE SW allocation are poss ible in single BTS (e.g. 2x BCS or o r RCS + BCS) assuming suitable HW capacity

 

SRAN baseband

LTE

SBTS baseband resources sharing

WCDMA

LTE + WCDMA sharing case requires at least one FBBA*/C card. Basic cell set (BCS)

WCDMA: 5,5 subunits LTE: Basic cell set configuration

WCDMA LTE

up to 6x10MHz LTE 2x2 MIMO up to 3x10MHz LTE 4TX/4RX up to 3x20MHz LTE 2x2 MIMO 4TX/4RX = 4x2MIMO, 4x4MIMO or/and • • •

FSMF + FBBC

WCDMA WCDMA LTE

WCDMA: 11,5 subunits LTE: Basic cell set configuration

FSMF + 2x FBBC

4RX diversity mode Extended cell set (ECS) •

3x20MHz LTE with 4TX/4RX capability

Extended cell set between 2 FBBCs is supported supported. . not

WCDMA LTE

LTE

WCDMA: 5,5 subunits LTE: 2x Basic cell set configuration

FSMF + 2x FBBC

Exemplary configurations

 

SRAN baseband

GSM

SBTS baseband resources sharing

LTE

GSM + LTE sharing case requires in minimum FSMF baseband capacity

LTE (RCS conf)

GSM

GSM: Up to 24 TRX LTE: LTE: Reduced cell set configuration

FSMF

Reduced cell set (RCS) •

•

up to 3x10MHz LTE 2x2 MIMO with CoMP in FSMF up to 4x10MHz LTE LTE 2x2 MIMO without CoMP in FSMF

GSM

LTE(RCS conf)

LTE

GSM: Up to 24 TRX LTE: Reduced cell set configuration + Basic cell set configuration

FSMF + FBBC

GSM

LTE

WCDMA LTE

WCDMA: 5,5 subunits LTE: LTE: 2x Basic cell set configuration

Exemplary configurations

 

SRAN baseband

GSM

SBTS baseband resources sharing

LTE

GSM + LTE sharing case requires in minimum FSMF baseband capacity

WCDMA GSM

WCDMA

WCDMA LTE LT E

GSM: Up to 24 TRX LTE: LTE: Basic cell set configuration WCDMA: 11.5 subunits

FSMF + 2x FBBC

Reduced cell set (RCS) •

•

up to 3x10MHz LTE 2x2 MIMO with CoMP in FSMF up to 4x10MHz LTE LTE 2x2 MIMO without CoMP in FSMF

GSM

LTE

LTE (RCS conf) WCDMA

FSMF + FBBC

LTE (RCS conf) WCDMA WCDMA

GSM

FSMF + 2x FBBC

GSM: Up to 24 TRX LTE: LTE: Reduced cell set configuration + Basic cell set WCDMA: 5,5 subunits

Basic cell set (BCS) up to 6x10MHz LTE 2x2 MIMO up to 3x10MHz LTE 4TX/4RX up to 3x20MHz LTE 2x2 MIMO 4TX/4RX = 4x2MIMO, 4x4MIMO or/and 4RX diversity mode • • •

GSM: Up to 24 TRX LTE: LTE: Reduced cell set configuration WCDMA: 11.5 subunits

Exemplary configurations

 

SRAN baseband SBTS baseband baseband resources resources sharing sharing - Summary

•

System Module sharing functionality allows to share single BTS baseband resources between different RAT RA Ts (i.e. (i.e . GSM / WCDMA WCDM A / LTE).

•

SBTS supports also single RAT scenarios.

•

RAT baseband dimensioning rules remain unchanged as such.

•

SBTS supported configuration can be found in the following excel file describing SBTS profiles.