Presented on 05th March 2015, at the Galileo Power Hour: Location Matters! Galileo Enhances Performance of LBS Applications, (Mobile World Congress, Barcelona)

1. 1
POINT OF VIEW OF A CHIP MANUFACTURER:
BROADCOM
GSA Power Hour: GALILEO

2. 2
2
ABOUT BROADCOM
BROADCOM AT A GLANCE
Source: Gartner Top 10 Semiconductor Vendors by Revenue, Worldwide, 2013. *Excluding memory companies.
2
Fortune 300
GLOBAL
leader in
semiconductors
for wired and
wireless
communications
One of the
LARGEST
VOLUME
fabless
semiconductor
suppliers
Ships ~7M
chips a day
One of the
industry’s
broadest IP
portfolios with
>20,000
U.S. and
foreign
patents and
applications
One of
TOP 5
semiconductor
companies by
revenue*
HQ in Irvine,
California with
DESIGN
CENTERS
around the
world

3. 3
BCM4774 is the new Broadcom Location Hub chip:
o Galileo support, in addition to GPS, GLONASS, QZSS, SBAS and BeiDou
o A-Galileo support –Long Term Orbits (LTO) for non-real time connection
Assisted GNSS performance (ephemeris and time biases for all constellations)
o On-chip position computation ; no load on the main processor of the device
o Sensor management
• Sensor Fusion software runs on-chip and offloads main processor
• Direct hardware interfaces to sensors
o Customer-specific software
• Downloadable to the BCM4774
• BCM4774 can replace the microcontroller in a wearable device
• BCM4774 SDK package available
o Automotive qualified version available soon
BCM4774: LOCATION HUB CHIP SUPPORTING GALILEO
Sampling now!
4774
Production Q3 2015
In phones: early
2016

4. 4
WHICH DEVICES CAN USE BCM4774?

5. 5
BCM4774: INTERCHANGEABILITY ACCOMPLISHED
BCM4774 treats all satellite signals from any constellation equally:
any four satellites will do to compute a fix (even the first fix!)
First Fix with one GPS, one GLONASS, one Galileo,
and one BeiDou satellite

6. 6
BCM4774: A UNIQUE TRI-BAND FRONT END
A/D
A/D
A/D
1561.098 1575.42 1602
BandSeparationFilters
ToBasebandProcessing
Gain Control
and Filters
Gain Control
and Filters
Gain Control
and Filters
Three independent systems, if one system has errors, it is easy to identify and correct
1561.1 1575.4 1598.1 1602 1605.9
BeiDou (China)
GPS (USA)
Galileo (Europe)
GLONASS (Russia)

7. 7
BCM4774: GALILEO PROVIDES MORE ACCURACY
trueposition = ( 37.391198, -121.97038, -8 )
# of tests = 1015, Yield = 100%
The two larger sources of error of satellite positioning are improved by Galileo:
-1.5 -1 -0.5 0 0.5 1 1.5
0
0.5
1
1.5
Code offset in chips
Magnitude
GPS L1 C/A
BOC(1,1)
Multipath
error
Iono
error
IONO Model used Accuracy in meters (67%)
Galileo NeQuick 3.5
GPS Klobuchar 4.2
No IONO model 4.6

8. 8
+
–
5
L
Indoor
BCM4774 one of the first GNSS chips to support Galileo
BROADCOM: DRIVING INNOVATION IN LOCATION TECHNOLOGY
Outdoor
Indoor
Location
Simultaneous Support
for Multiple Constellations
Context
Awareness
Sensors
Always-on
Battery
Optimal
BCM4774