lte cov cap case study

12
Tele Tele Cas The be re The belo ecoms Acade ecoms Acade se Study Doc following do equired to co area being s ow to assist y emy emy cument ocument cont omplete the s studied is an you with com tains details studies. n area of Lon mpleting all as of the plann don called th spects of the R R ing case stud he City of We e studies. Radio Plannin Radio Plannin dies. The fo estminster, d ng Case Stu ng Case Stu ollowing tools details are giv dy dy s will ven

Upload: witto-pere

Post on 17-Sep-2015

15 views

Category:

Documents


1 download

DESCRIPTION

descrição LTE1

TRANSCRIPT

  • Tele

    Tele

    Cas The be re The belo

    ecoms Acade

    ecoms Acade

    se Study Doc

    following doequired to co

    area being sow to assist y

    emy

    emy

    cument

    ocument contomplete the s

    studied is anyou with com

    tains details studies.

    n area of Lonmpleting all as

    of the plann

    don called thspects of the

    R

    R

    ing case stud

    he City of Wee studies.

    Radio Plannin

    Radio Plannin

    dies. The fo

    estminster, d

    ng Case Stu

    ng Case Stu

    ollowing tools

    details are giv

    dy

    dy

    s will

    ven

  • Tele

    Tele

    City The of LoLond The goveCou In 19St MIt co Dem AccoCouindic The incre198,Asia35% The

    ecoms Acade

    ecoms Acade

    y of Westmin

    City of Westondon and ndon's centra

    city containsernment, with

    urts of Justice

    965 the LondMarylebone, tovers a far gr

    mography

    ording to theuncil undertoocated that thi

    Office for Naeasing its gra,779, but soman ethnicity, 7

    % of househo

    table below

    emy

    emy

    nster

    tminster is a north of the Rl area.

    s most of Loh the Palacee.

    don boroughthe Metropolreater area th

    e 2001 censuok several stis figure was

    ational Statisant from the me estimates7% Black, 6%

    olds are occu

    is taken from

    borough of River Thames

    ndon's Weste of Westmin

    was createditan Boroughhan the origi

    us, the boroutudies, suppos too low.

    stics eventuaUnited Kingd

    s put it at 220% racially-miupied by their

    m the Greate

    London with s, and forms

    t End and is tster, Bucking

    d from the foh of Paddingnal settleme

    gh had a poorted by both

    ally added 17dom Govern0,000. 71% oxed, and 4%r owners.

    er London Au

    R

    R

    city status. Ipart of Inner

    the seat of thgham Palace

    rmer area ofton and the snt of Westm

    pulation of 1h political par

    7,500 peoplement. The ofof the popula

    % belong to o

    uthority (GLA

    Radio Plannin

    Radio Plannin

    It is located wr London and

    he United Kine, Whitehall,

    f the Metroposmaller City inster.

    81,279. Wesrties on the c

    e to Westminfficial populaation are whiother racial g

    A) 2008 Proje

    ng Case Stu

    ng Case Stu

    west of the Cd the bulk of

    ngdom's and the Roy

    olitan Borougof Westmins

    stminster Citycouncil, that

    ster's populaation is now te, 16% any roups. About

    ections

    dy

    dy

    City

    yal

    gh of ster.

    y

    ation,

    t

  • Tele

    Tele

    ecoms Acade

    ecoms Acade

    emy

    emy

    R

    R

    Radio Plannin

    Radio Plannin

    ng Case Stu

    ng Case Stu

    dy

    dy

  • Tele

    Tele

    ecoms Acade

    ecoms Acade

    emy

    emy

    R

    R

    Radio Plannin

    Radio Plannin

    ng Case Stu

    ng Case Stu

    dy

    dy

  • Tele

    Tele

    ecoms Acade

    ecoms Acade

    emy

    emy

    R

    R

    Radio Plannin

    Radio Plannin

    ng Case Stu

    ng Case Stu

    dy

    dy

  • Telecoms Academy Radio Planning Case Study

    Telecoms Academy Radio Planning Case Study

    Marketing Data A market survey was carried out and the following information was obtained Number of Subscribers This is an estimate based on current market figures, also referred to as the penetration of the potential market. This figure is the total number of subscribers including voice and data. The expected penetration for the Westminster area is 30%. During the day the actual population grows by 70% over the base population due to commuting workers. These subscribers should also be taken in to account when calculating subscriber numbers Number of mobile voice subscribers This is the percentage of the total number of subscribers that are expected to make voice calls. 90% of the total number of subscribers will use the service to make voice calls. However it is expected that all of the voice calls will be carried initially by the existing RAN. Number of data subscribers This is the percentage of the total number of subscribers that are expected to use data services. Market survey response indicates that 70% of the subscribers are likely to use the data services. Number of mobile data subscribers This is the percentage of the total number of subscribers that are expected to make use of the data capability of their handsets. Response to marketing survey expects that 90% of the data users will make use of the data capability of their handset. Number of data dongle subscribers (laptop) This is the percentage of subscribers that have access to data dongles (USB or PCMCIA cards). The marketing survey suggests that some users will be using both their data phones and their connected laptop devices therefore the percentage of laptop users is 25% of the data users. Density of users (indigenous) and commuters This is the number of users per Km2 Average call duration The average voice call duration is 190 seconds, however the voice calls are carried by the legacy network and have no impact on the data network capacity (at least for now) Data applications/websites used Most applications are accessible on both handheld and laptop devices, the marketing survey indicates the most likely application to be used by both mobiles and laptops Application/Website Mobile Laptopemail Facebook YouTube BBC News Feed BBC News Text Google Earth/Maps VoIP other Web

  • Telecoms Academy Radio Planning Case Study

    Telecoms Academy Radio Planning Case Study

    Application activity This data gives an indication of the likely activity of the service, values range 1 5, where 1 is low and 5 is high Application/Website Mobile Laptopemail 5 5 Facebook 3 4 YouTube 3 3 BBC News Feed 2 2 BBC News Text 3 3 Google Earth/Maps 2 2 VoIP - 2 other Web 3 3 Average data session duration This data indicates the likely duration of each session, stated as high, medium and low, these values indicate the length of the data session, where high is greater than 1 hour, medium is 30 min 60 min and low is less than 30 min. Application/Website Mobile Laptopemail High High Facebook Med High YouTube Med Med BBC News Feed Med Med BBC News Text Low Med Google Earth/Maps Low Med VoIP - Med other Web Med Med Average data session data volume This data indicates the volume of data likely to be moved during 1 session. This data is based on average figures obtained from various measurements and statistical analysis of typical users. Figures shown are in Kilo-bits and Mega-bits. Application/Website Mobile Laptopemail 500KB 5MB Facebook 1MB 10MB youtube 1500KB 3MB BBC News Feed 200KB 1MB BBC News Text 1MB 10-30MB Google Earth/Maps 5MB 15MB VoIP - 20MB other Web 500KB 5MB

  • Telecoms Academy Radio Planning Case Study

    Telecoms Academy Radio Planning Case Study

    Average bit rate per session This data indicates the required data rate for each of the applications, these figures are based on a data rate which provides the minimum of delay for the application in use. Delay figures are not shown and the figures are the minimum value. Application/Website Mobile Laptopemail 100Kbps 1Mbps Facebook 500Kbps 2Mbps youtube 500Kbps 2Mbps BBC News Feed 100Kbps 1Mbps BBC News Text 2Mbps 5Mbps Google Earth/Maps 500Kbps 5Mbps VoIP - 100Kbps other Web 500Kbps 2Mbps Subscriber activity level Both mobile and laptop users may have a high, medium or low activity factor. This study defines the users as having an activity level of 1 5 where 1 is low and 5 is high. The table below indicates the level of activity expected from the different class of users. Application/Website

    Mobile LaptopHigh Med Low High Med Low

    email 5 4 2 5 4 3 Facebook 4 3 1 5 3 2 youtube 4 2 1 5 2 1 BBC News Feed 5 4 3 5 4 3 BBC News Text 3 2 1 4 2 1 Google Earth/Maps 3 2 1 3 2 1 VoIP - - - 3 2 1 other Web 3 2 1 3 2 1

  • Tele

    Tele

    Cas Usinthe f

    Bas

    eP

    eCL

    UU

    B

    N

    Q

    1

    6 Tran

    e

    C

    U

    U

    U

    U

    U

    U

    ecoms Acade

    ecoms Acade

    se Study 1

    ng the supplifollowing LTE

    sic Link Bud

    eNB EquipmPA PWR

    eNB AntennaCable and CnLoss

    User EquipmUE Antenna G

    Bandwidth

    Noise Factor

    QPSK IM

    6QAM IM

    64QAM IM

    nsmitter and

    eNB EiRP

    Calculate UE Rx Sens

    UE Rx Sens

    UE Rx Sens

    UE Min IRL Q

    UE Min IRL 1

    UE Min IRL 6

    emy

    emy

    Coverage

    ed spreadshE system.

    dget Parame

    ent 35

    a Gain 13nctr 3

    ment VGain 0

    5

    5

    2

    3

    4

    d Receiver P

    QPSK1/2

    16QAM

    64QAM 5/6

    QPSK1/2

    16QAM 3/4

    64QAM 5/6

    heets and LT

    eters

    5 dBm

    3 dBi

    dB

    ValuedBi

    MHz

    dB

    .5 dB

    .5 dB

    dB

    Parameters

    Value

    Value

    E data deter

    R

    R

    rmine the nom

    Radio Plannin

    Radio Plannin

    minal Downl

    ng Case Stu

    ng Case Stu

    ink cell range

    dy

    dy

    e for

  • Telecoms Academy Radio Planning Case Study

    Telecoms Academy Radio Planning Case Study

    Maximum Allowable Pathloss Calculate ValueSystem Gain = EiRP Min IRL QPSK 1/2

    System Gain = EiRP Min IRL 16QAM 3/4

    System Gain = EiRP Min IRL 64QAM 5/6

    Total Margin = Shadow+Building+Foliage

    MAPL = System GainQPSK Total Margins

    MAPL = System Gain16QAM Total Margins

    MAPL = System Gain64QAM Total Margins Nominal Cell Radius Cost 231-Hata/ number of sites required for Coverage Use the spreadsheets to work out the nominal cell radius for each of the modulation schemes and determine the number of sites required to provide coverage over the case study area. Assume 16Km2 for the Westminster area. Calculate From Spreadsheet @ 900MHz @ 2600MHz Km # cells Km # cells

    QPSK Dense Urban cell radius/no required

    16QAM Dense Urban cell radius/no required

    64QAM Dense Urban cell radius/no required

    QPSK Urban cell radius/no required

    16QAM Urban cell radius/no required

    64QAM Urban cell radius/no required

    QPSK Suburban cell radius/no required

    16QAM Suburban cell radius/no required

    64QAM Suburban cell radius/no required

    QPSK Rural cell radius/no required

    16QAM Rural cell radius/no required

    64QAM Rural cell radius/no required

  • Tele

    Tele

    Cas Thes

    Usincapa

    (ass

    ecoms Acade

    ecoms Acade

    se Study 2

    se spreadsh

    ng the demogacity metrics

    a) Total bu

    b) Maximu

    c) Minimumsuming maxim

    d) How ma

    emy

    emy

    Capacity

    eets can be

    graphic data for the Wes

    usy period da

    m data dens

    m number of mum possibl

    any eNB requ

    used to help

    and market stminster area

    ata volume

    sity (Mbps/Km

    eNB requirele DL data ra

    uired to serve

    p you work ou

    research daa.

    m2)

    ed per Km2 ates)

    e the Westm

    R

    R

    ut some of th

    ata from abov

    minster area ?

    Radio Plannin

    Radio Plannin

    he requireme

    ve determine

    ? (Assume a

    ng Case Stu

    ng Case Stu

    ents below.

    e the followin

    value of 16K

    dy

    dy

    ng

    Km2)

  • Telecoms Academy Radio Planning Case Study

    Telecoms Academy Radio Planning Case Study

    Assuming the following values for expenditure and revenue and a 5MHz Channel bandwidth Site CAPEX $ 25,000 Site OPEX/month $ 3000 System OPEX/Month $ 75,000 Revenue/Month $ 50/user

    e) Can the system be profitable ?

    f) How could the project be improved i.e. shorter break even ?

    g) Compare the site numbers and break even intervals for QPSK and 64QAM, what

    causes the differences in values ?