5.2. bdays arg personal - sran cran 20150903

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1

Confidential

© Nokia 2015

Nokia C-RAN and S-RA

What are these concepts?

Demetrio Rakitin

Head of LTE Sales Development LAT

3-Sep-2015



2

Confidential

• What is Nokia C-RAN?

min)• What is Nokia S-RAN?

min)

genda



3

Confidential

Nokia C-RAN



4 © Nokia Solutions and Networks 2015

• Mobile operators providingbroadband connectivity forlarge concentrations ofpeople within a defined area

• subscribers sharing uniquemoments and generatinglarge amounts of Uplinktraffic in a dense environment

Centralized RAN Drivers & Markets

Attractions

ConcertsStadiums

Carnivals




Centralized RAN – Ultra Dense Network Deployment – Stadium Exam

enseR N Introduction100.000 Fans

watch game

at Stadium

10.000 Fans

snapshot goal

and upload to

Social media

10,000 x

1 MB Pictures

10 GB

hits uplink

Target:

clear traffic

in 60 seconds

100 cells

would be

needed in

stadium

UL interf.would

collapse ULperformance




Single Cell vs. Multi-cell Coordination CRAN can do it!

Radio1 Radio 2 Radio 3

Radio 4 Radio 5 Radio 6

UEIntra-eNBUL CoMP

Radio1 Radio 2

Radio 4 Radio 5

UE UE

CRAN

MuCCSUE

Radio1 Radio 2 Radio 3


UE

Radio2 Radio3 Radio4


UE






Cell 8 Cell 7 Cell 6 Cell 5

6A 6B 4A 4B 3A 2A3B 2B 1A 1B 12A 12B 11A 8A 8B 7A 7B

eNB 3 eNB 2

TTI 1

12Rx Receiver

Cell 4 Cell 3 Cell 2 Cell 1 Cell 12 Cell

5A 5B

Dynamic Selection of Reception Set for fixed UL CoMP Set (1/4)






eNB 3 eNB 2

TTI 2

12Rx Receiver


5A 5B







eNB 3 eNB 2

TTI 3

12Rx Receiver


5A 5B







eNB 3 eNB 2

TTI 4

12Rx Receiver


5A 5B





Centralized RAN 1-tier stadium cell layout

Cell 2

(RRH2)

Cell 1

(RRH1)

Cell 3

(RRH3)Cell 6

(RRH 6)

Cell 5

(RRH 5)

UL CoMP set 6 cells

UE

UL/DL serving cell

1 - T i e r

Reception set: up to 4 selected c

(8 best RX’s with 8-way IRC)




Nokia CRAN live Stadium Results

CRAN Efficiency

gainsUL volume per PRB

150%

UL UE powerconsumption decrease

Up to 20%

Up to 33%

UL Throughputimprovement under highload conditions

2.53x

Helsi




Nokia Centralized RANTurning interference into useful traffic

Base StatBase Station

Average cell

UL capacity

gain

2x to

3x

Average cell

edge UL

capacity gain

10x

Improved

downlink

capacity

5%

UE power

consumption

decrease

33%

Centralized RAN links together multiple base stations and turns the

interference into useful traffic, especially in dense traffic areas with

a large number of smart devices

How




Nokia S-RAN




Why is SRAN a topic today?

Exponential traffic growth

LTE: new spectrum, many bands

GSM and WCDMA will stay for s

SRAN:

• flexibility in spectrum use and in

protection

• longer life for GSM and WCDM

running costs while going for LTE




Can we make multi-radio networks simpler to operate?

4G

Baseband

2G

cabinet

900

MHz

2G

cabine

t1800

MHz

Radio Head

2100 MHz

Radio Head900 MHz

Radio Head

1800 MHz

Radio Head

800 MHz

3G

Baseband

X

X

X

X

Typical Multi-RAT site today

Cell site routers, switches,

demarcation devicesTDM/SDH

IP/Eth




Before: Classical RF sharing

Introduction

Before & after System Module sharing

SRAN introduced (SBT

For internal use

GSM

System Module

WCDMA

System Module

900

RF sharing

GSM

System Module

LTE

System Module

900

RF sharing

Each RAT requires dedicated System Module

Common

System Module (LTE + WCDMA + G

RF sh

One common System Modu

up to 3 RATs and dedicate

modules




SRAN reduces site complexity

2G/3G 900

Radio Module3G 2100 Radio

Module

2G/4G 1800

Radio Module

4G 800 Radio

Module

FSMF: Common

2G/3G/4G

Baseband

X

X

X

X

Nokia SRAN • Common/ Sh

Radio and Base

• Single SRAN

• Common O&

2 cabinets & 12 radios3 separate basebands

GSM with TDM; IP for

WCDMA and LTE

4 radios and common baseband, all-IP




SRAN simplifies networks

Less complexity: common & shared HW

Simpler operations: common SW and OAM

Lower TCO: OPEX savings




SR N summary

From single Radio Access Technology (RAT) to Single RAN

One maGSM

BTS GSM OAMGSM TRS

WCDMA

BTSWCDMA OAM

WCDMA TRS

LTE

BTS LTE OAMLTE TRS

GSM / WCDMA / LTE

SBTSOAM

TRS

Pre-SRAN SRAN

SBTS 16

• Simultaneous processing of 3R

module

• Baseband capacity shared to diffe



21

Confidential

¡Muchas gracias

[email protected]

5.2. bdays arg personal - sran cran 20150903

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