Title: Mobile Internet 3G vs. 4G or both...
1Mobile Internet3G vs. 4G or both...
Harri Kreus Senior Consultant Harri.Kreus_at_HMV.fi
358 40 7726525
2Background
- There is a lot of discussion what 4G actually
means... - Will it be logical successor of 3G in timely
fashion? - We see at HMV that no, evolution of 3G 4G are
parallel but starting from different paradigm,
but possibly uniting in the Next Generation thus
actually 5G - 3G is evolving from Mobile Phone to Mobile
Communicator to Mobile PDA (UMTS, WCDMA, i-Mode,
WAP) - 4G is evolving from PDA to Mobile Communicator to
Mobile Phone (WLAN, GPRS, VoIP-client) - Actually, we see that there is room for both in
the market
3Background
- At the same time there are two massive
convergencies going on - All IP
- Military-Commercial
- The Main Integrator will be Software Radio
- SoThank God for SWRADIO DSIG within OMG and
Wireless CORBA (Telecom DTF) !
4eEurope 2002 Internet everywhere, anytime, for
everybody
Information Society with eEurope
Cable modem
3G (UMTS)
EDGE GPRS
xDSL
Twisted pair
2G (GSM)
Internet Protocol
Mobile
Fixed
Commissioner Erkki Liikanen European Commission
5Towards the personal Internet in EU
- Internet access increasingly based on mobile and
interactive digital TV platforms - By 2003, 65 of the EU population will have a
mobile phone - and 85 of mobile phones will be
Internet-enabled
Commissioner Erkki Liikanen European Commission
6Software radio
- Re-programmable radio of the future which can be
configured (even in real time) to function in
many radio systems and if necessary even
simultaneously - Dominant design principle in future
- All functions are to maximum extent software
defined - Includes also a smart multiband antenna system in
the future
7Main advantages of software radio
- The size, power consumption and complexity of
radio will decrease---gt also cost of production
is smaller - Shorter development time
- Bridge or gateway function between different
systems-gt makes interoperation possible - Radio interface or communication protocol can be
changed on the fly - Adaptive radio interface possible
- Future proof
- compatibility with legacy and future waveforms
8Military multiband multimode -basestation
- Basestations support both commercial and
military waveforms - Advantages
- No need for changes in terminals
- Drawbacks
- Basestation complicated and expensive
- different waveforms
- signalling
- etc
- does not support the principle of
decentralisation
HF-radio
SR
SR
VHF CNR
SR
UHF-radio
SR
Commercial radio(GSM, TETRA etc.)
9Commercial multiband multimode -basestation
- Advanced Communications Technologies released
01/2001 SDR-basestation(SpectruCell), which
includes GSM, CDMA, 3G,UMTS waveforms - coming on the market this year
- 400 MHz2,9 GHz
- No application specific circuits
- for example CDMA function without specific
circuit(like Qualcomm) - 1024-QAM radiolinks can be used also to combine
different basestations
GSM
SR BS
SR BS
UMTS
SR BS
GSM/EDGE
SR BS
IS 95
10Military multiband multimode terminal
- Terminals will support both commercial and
military waveforms - Advantages
- Parallel use of existing networks ---gt supports
the principle of decentralisation - Terminal uses at same time only one waveform---gt
implementation architecture simple - Drawbacks
- Terminal more complicated compared to
singlemode radio - Commercial application 4G(3G)
11Development of commercial mobile communication
networks
- 1G analog cellular networks
- NMT, AMPS, TACS etc
- Digital 2G networks
- GSM, through evolution path data rate increases
- HSCSD
- GPRS
- EDGE---gt over 384 kbit/s
- WAP
- wide range
- IS 95, IS-136 CDMA, IS-136 TDMA
12Development of commercial mobile communication
networks
- 3G UMTS (WCDMA-techniques)
- Two versions UMTS_1999 and UMTS_ 2000
- core networks either enhanced GPRS or
- IP-network
- Handover GSM lt--gt UMTS---gt multimode radios
- Hotspot coverage
- max theoretical data rate 2 Mbit/s
- Offers for mobile user multimedia services and
convergence between fixed, cellular and satellite
networks
13Development of commercial mobile communication
networks
- 4G
- Not a new waveform, butAs wide Integration as
possible of all existing systems based on
software radio and IP-technology - all systems, all services, at low price
- private and public networks
Picture from Dr Pereira(EU commission), PIMRC 2000
14Future All-IP network
15Development of Tactical Radios (ground forces)
- 1. Generation
- Analog radios
- analog FM-modulation
- very slow data rate using typically
FSK-modulation - 2. Generation
- Digital radios
- deltamodulated voice and for example FSK-type
modulation - slow data rate (typically under 9.6 kbit/s)
- frequency hopping as ECCM-method
- Support of packet data
- for example Tactical Internet standard
MIL-STD-188-220 - Ad Hoc type of network setup
- 3. Generation
- Multiband multimode radios
- same radio includes for instance HF, VHF and
UHF waveforms - Support of many waveforms (520)
- Enhanced packet data transfer
- Possibly includes also commercial or public
safety waveforms(GSM, TETRA etc.) - 4. Generation
16Convergence of Commercial and Military Radio
Networks
- Strong encryption-, integrity- and authentication
methods are used to guarantee secure data
transfer - Ad Hoc mode in the software radio enables
automatic network management - For longer range commu-nication the commercial
or military networks are used as soon as they are
available - European cooperation would be necessary in order
to develop 4G tactical software radio
- Both Commercial and Military Network will be
IP-based - Commercial and also tactical routers support
Mobile IP and IPsec - Untrusted Internet can be used to connect
tactical intranets VPN(Virtual Private
Network) - In principle future military multimode
software radio can be used seamlessly both in
military and commercial radio networks - core network is responsible of mobility (Mobile
IP,Wireless CORBA)
17Summary
- The convergence of commercial mobile systems (3G
and especially 4G) is based on re-configurable
radios (software radio) - Future tactical radios will also be software
radios - the need for multiband multimode radios is
obvious in future - parallel use of commercial and military radio
networks - adaptive waveforms
- gateway-function possible
- interoperability between legacy and future
waveforms - Closer cooperation between commercial-military is
needed - OMG offers an excellent forum for this