INTRODUCTION

anisesecretaryΚινητά – Ασύρματες Τεχνολογίες

12 Δεκ 2013 (πριν από 3 χρόνια και 8 μήνες)

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INTRODUCTION


With the development of networ
k

more and more
people

use the internet to transmit
data

It is
necessary

for

enhancing
the
service

quality requirements when a large of users
share

the network resources

Early wireless mobile network system

can n
ot achieve current
requirements

so internet service provider
s want the wireless mobile network technology
can have more bandwidth to transmit data and expand the coverage of broadband
network

3GPP

(Third Generation Partnership Project) proposes new standar
ds for wireless

network interface

It combines high speed

high bandwidth and large coverage

this

new
wireless technology component by the frequency and time

while
transferring

resources to
users

Therefore

it is
a
important

issue

to know how to properly allo
cate resources to
users

In this paper

because

in LTE

(Long Term Evolution)

cellular communi
cation
system

applying OFDMA (Orthogonal Frequency Division Multiplexing Access)
modulation technique

Therefore

it can divide into many small
RB (
resource blocks
) th
at
it helps to use RB to do transmission on the uplink or downlink