Post on 12-Apr-2017
Small Cell Deployments
Martin LjungbergStrategic Product Manager, Small Cells Solutions
Ericsson Internal | 2017-02-23 | Page 2
Insulated windows
UV protection
Energy efficiency
Modern buildings provide higher
energy efficiency but also worse
indoor connectivity since cellular
signals are impeded
Weak signals
Blocked signals
Poor indoor performance
barrier to reach indoor users Driving small cells needs
Traditional building walls impose high
penetration losses to radio signal that
affect indoor user experience
Ericsson Internal | 2017-02-23 | Page 3
Constantly growing demand
@
SM
S
Provide app coverage everywhere
The challenge is to provide performance, reliable connectivity and mobility across
radio technologies, frequencies and places
Cope with the constant data traffic growth
Global mobile data traffic (monthly ExaByte)
x10
10Mbps
1Mbps
0,1Mbps
>10 Mbps
Indoor
required
performance
Network required performance
Source: Ericsson Mobility Report, June 2016
52.8
5.3
Ericsson Internal | 2017-02-23 | Page 4
› New Revenues
–Office
› Best performing network
– Airport
Target buildings with best impact
MIMO VS SIMO (20 MHz)
epa5 / 2x2MIMO (DL) epa5 / 1x2SIMO (DL)
Indoor
Macro
Weekend
42.5%
57.5%
Weekday
43.3%
56.7%
Indoor Traffic distribution
Ericsson Internal | 2017-02-23 | Page 5
› Distributed Radio Head (Radio Dot)› DRAN
› Pico Cells› DAS
Indoor and solution options
Ericsson Internal | 2017-02-23 | Page 6
Fading
Macro signal
Indoor signal
Indoor design Concepts
Fading
Min signal level
Ericsson Internal | 2017-02-23 | Page 7
Item Recommended design target
Radio Dot
Optimized
6 dB combined margin over macro
Dominance:3, Fading: 2, Body Loss:1
Item Typical design target
Traditional
DAS
16 dB combined margin over macro
Dominance:8, Fading: 5, Body Loss:3
› Distributed small cells give better performance, capacity and mobility
at lower RF signal levels than traditional indoor DAS
Indoor design evolvedExample, traditional indoor design
Distributed Small Cells design
Ericsson Internal | 2017-02-23 | Page 8
Ericsson Indoor Planner
Indoor 3GPP Design – Sleek Simple Easy
XL AXIATA Inbuilding Discussion | Commercial in confidence | © Ericsson AB 2016 | 2016-06-29 | Page 9
Airport Solution and design
1st Floor LTE
109170
E Small Cell
Existing DASAntenna Spot
36%
Ericsson Internal | 2017-02-23 | Page 10
office Planning and solution
IDF Room & Riser
DOT
Ericsson Internal | 2017-02-23 | Page 11
Installation OfficeFloor Number
Total area
per floor
Coverage
/DOT
DOTs per
Floor
DOTs per
Comb Cell
IRUs per
Comb CellBaseband
23 1 600 400 422 1 600 400 4
21 1 600 400 4
20 1 600 400 4 Baseband
19 1 600 400 4 5 IRUs
18 1 600 400 4 2 combined cells
17 1 600 400 4
16 1 600 400 4
15 1 600 400 4
14 1 800 450 4
13 1 800 450 4
12 1 800 450 4
11 1 800 450 4
10 1 800 450 4
9 1 800 450 4
8 1 800 450 4 Baseband
7 1 800 450 4 6 IRUs
6 1 800 600 3 2 combined cells
5 1 800 600 3
4 1 800 600 3
3 1 800 600 3
2 1 800 600 3
Plaza 1 800 600 3
Ground 4 000 2 000 2
Total area: 43 600 520 88 11 2
24 3
24 3
16 2
24 3
88 Radio Dots – 4 radio cells expandable to 11
Ericsson Internal | 2017-02-23 | Page 12
Airport InstallationGates Area Arc Area (Open Area)
For Gates area mostly will be covered by RDS due to some area have more partition
For Arc Area mostly will be covered by mRRUS cause open area to reduce Spot number (save OPEX)
Better user experience more users
300%
350%
4G
Ericsson Internal | 2017-02-23 | Page 14
SPEED TEST