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GSM vs LTE-Difference between GSM and LTE

This page on GSM vs LTE describes difference between GSM and LTE systems.

Specifications GSM LTE
Full form Global System
for Mobile Communication
Long Term Evolution
Frequency Band(MHz) There are four major
frequency bands used
across the globe GSM850,
GSM900, DCS1800
and PCS1900, READ MORE
LTE supports frequency
Band 1 to 25,
band 33 to band 43,
READ MORE
Channel Bandwidth 200KHz is
supported in GSM
Release 8 supports
1.4MHz, 3MHz,
5MHz, 10MHz,
15MHz and 20MHz
Access scheme It supports
FDMA/TDMA
Supports OFDMA
in the downlink
and SC-FDMA
in the uplink
Topology FDD
(Frequency Division Duplex)
TDD
(Time Division Duplex)
and FDD both
Frame Structure/Frame Duration There are two types
26frame MF and
51frame MF.
26Frame MF is of
duration 120ms used
for traffic and
51frame MF is of
duration 235.4ms
used for control
signalling
Supports TDD and
FDD frame structures
, 10ms total frame
duration
Modulation Method GMSK QPSK,16QAM,
64QAM
Physical layer GSM Physical layer
composed of modules
which include
forward error correction
,interleaving,ciphering,
burst building,multiplexing,
differential encoding,
GMSK modulation etc. It is same on
both base station
and subscriber station
side.READ MORE
Different for both
the UE and eNodeB,
UE uses SC-FDMA
in the transmit while
eNodeB uses OFDMA
in the transmit side, READ MORE
Channel number GSM Channel number
is referred as
ARFCN
LTE channel number
is referred as
EARFCN
Protocol Stack composed of PHY,
LAPDm,RRM,MM,
CM layers at
Mobile Subscriber(MS),read gsm protocol stack article
Composed of PHY,
MAC,RLC,PDCP,
RRC, read LTE protocol stack tutorial
Channel types Divided into
logical channels
and physical channels,
Refer GSM Channels
Divided into
logical channels,
physical channels and
transport channels,
Refer LTE Channel types
Network Architecture Refer GSM Tutorial for GSM network architecture with interfaces
Refer gsm network interfaces
Refer LTE tutorial for LTE network architecture with interfaces
Application Used mainly for
voice calls,
GPRS/EGPRS needed
for data calls
Used mainly for
data calls
Advanced features Supports gsm advanced
features such as
MUROS,VAMOS,SAIC,MSRD
LTE Advanced release-10
is available
which supports
MIMO,beamforming,
Carrier Aggregation etc.
Cell search procedure Refer GSM Network Entry procedure Refer LTE UE cell search procedure
MIMO Support gsm advanced
supports 2x2 MIMO
Lte advanced
supports 4x4 and
8x8 MIMO,
supports multi user
and co-operative MIMO
Security aspects uses A3,A5 and A8
algorithms for encryption,
Refer GSM Security
Five LTE security
groups are described
in 3GPP 33.401 document
UE Categories Supports different
categories for multislot
configuration mainly
to provide GPRS support
Refer LTE UE categories
Throughput Refer GSM GPRS Throughput Refer LTE throughput
Modulation Efficiency
(b/s/Hz) or
spectral efficiency
1.35 b/s/Hz Downlink cell:
1.69 bps/Hz/user for
2x2 MIMO and 2.67 for
4x4 MIMO
(in case of LTE standard)
2.4 and 3.7
respectively for LTE-Advanced
standard
Timers GSM Timers LTE Timers
Measurements Refer GSM Measurements Refer LTE UE Measurements
and

GSM LTE Tutorials

GSM Tutorial
LTE tutorial

What is Difference between

difference between FDM and OFDM
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
Difference between 802.11 standards viz.11-a,11-b,11-g and 11-n
OFDM vs OFDMA
CDMA vs GSM
Bluetooth vs zigbee
Fixed wimax vs mobile
wibro vs mobile wimax
Microcontroller vs microprocessor
FDM vs TDM
wimax vs lte

RF and Wireless Terminologies


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