Intro Cellular Comm.pdf

Embed Size (px)

Citation preview

  • 8/9/2019 Intro Cellular Comm.pdf

    1/8

    !

    $%

    &

    !

    "

    #

    !$%

    !

    !

    $

    &

    '

    #

    #

    (

    ( )

    )

    * '' + , ! ' -

    ' #( )$) $ ) *

    &+ , ' , ,

    1. Mobile Communications Principles

    - % . / 0 1 0 / % . % 2 3 2/4 05 2/ 4 05 6 / . % / % 1 % % 0 / % 0 /.% 0

    Early Mobile Telephone System Architecture

    1 % % 7 / % 8 0 1 % 0 / ./ + 9. %/ 45 45. / / / % 3 3 . 45 + % 0

    2. Mobile Telephone System Using the Cellular Concept

    % %/ % : % / # % 0 % % - / . 2/ % % % / /

    - % . % % 45 ;/ %/ 8 . % )/% 0 / 0 ) %/ . %

    1 / % . %

  • 8/9/2019 Intro Cellular Comm.pdf

    2/8

    !

    > . . 2/.

    Cells

    # % / 1 /% % 9 -

  • 8/9/2019 Intro Cellular Comm.pdf

    3/8

    !

    2 . 2/ 1 . %

    Cell Splitting

    A/. / / 1 /. / # % . /. % % / / % / . . 9 %

    Handoff

    1 % 0 % %%% # : . % % : ; %. @ % 0 / % :

    ' . % . % 0 # . 2 1 / 2/ 1 0.

    4. North American Analog Cellular Systems

    7/ B / B. / % $@< # . . 2 0 45 %% 4%5 / )/ 0 / . . 2 /. % 2 %

    2/ /

  • 8/9/2019 Intro Cellular Comm.pdf

    4/8

    !

    9 2

    The Advanced Mobile Phone Service (AMPS)

    #$>) B" $@< B$@< 2/ % "0@< % / %

  • 8/9/2019 Intro Cellular Comm.pdf

    5/8

    !

    6. Digital Systems

    # % . % % 45 0 % / . % / B - 9 8 % %/ / %%/ 3 0 %0 %%/ # 2. / / 20/ % . 2/ / 1 % / 1 41'$#5. &% )/ $% 4&)$5. 4>)5 B. 4'$#5 / / / %

    + / /

    1 0 / / 1/ 1'$# '$# % / ; / #$>) . 0 #$>) % 4'#$>)5 %/ / 9 0 1'$#

    Time Division Multiple Access (TDMA)

    ? # 4?#'5 '#$>) 1'$# ; #$>) /. '#$>) #$>) 1'$#

    )D8* / #$>) // ! 8 #$>) %/ %0 $@< B $@< 1'$#+'$# " 4! 5. "

    #$>) /

    1'$# 1'$# / % - /. 0 % %/ 2 1'$# 2/ % #$>) =0 ?#$>). 1'$# 9 % #$>) A0 ?#$>). / %/ / 1'$# "0@) >) B $@< 4>) B5 ? # / 4')5 4&)$5 1 0 A) %/ BB". BB* + 4+5 % #

    BB8. + >) 2/ . C ). % 0 0 2/ 4. 8 E8$@< 0 B"$@< 05

    Code Division Multiple Access (CDMA)

    '$# . 8 / / /. . % / ; /. / 3 / 9 4=-5 ; %/ . / 2/. 2/ % #$>) '#$>) -/ '$# 8$@< %. . E 1 / 2/ / '$#

    '$# / A0 #$>)1'$#. '$# / F . % %/ 1

    / / $% 9 % + '$#. % 9

  • 8/9/2019 Intro Cellular Comm.pdf

    7/8

    !

    $ + F / % A )

    $. 2/

    $ 2/ F 2/ F 2/ %

    $ 2/ F 2 2/ %/

    $! 9

    &% )/ $% F - GF %/ % . 0

    .3 ) / %F ?#$>) #$>) / 9 /

    F . 2/ / 0 )1? 0. 9 0. 0 %

    !$ 2/F % 0@< " $@< 4 %5

    %% / F %

    20

  • 8/9/2019 Intro Cellular Comm.pdf

    8/8

    ( % ' + # 0+4 ' 56778+9::; $44 '4