Generic selectors
Exact matches only
Search in title
Search in content
Search in posts
Search in pages

NSEI and site GPRS Dimensioning ..

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • #69378 Reply
    Pritam
    Guest

    Hi PIX & Bijoy…
    Can u please share me how many site we can attach to one nesi(we are using 1 logical pcu2_D).Here we have to config one site with max 9 number of GTRX and EDAP for 3 channel.CDED 17%,CDEF 34%,CMAX 100%.NSEI bandwidth 640 kbps.Please teach for the calculation detail.

    #69379 Reply
    RNO
    Guest

    as you know that PCU2_d can handle 256 channels (16kbps) the utilization should be 70% that means 180 channels so your calculation as:
    =no of sites *no. of cells *CDEF*(channels support GPRS in TRXs)+EDAP channels (16kbps)

    for example in your case
    S3/3/3 :all TRXs enabled GPRS and channels =3*8-BCCH-2SDCCH=24-1-2=21
    so we have 21 channels in TRXs enabled GPRS per cell and we have 3 EDAP timeslots (64Kbps)=4 (16kbps)*3=12

    so per site
    21*.34*3+12=33
    1 pcu can handle sites
    =180/33=5 sites

    NOTE:i recommend to increase EDAP to 6 timesloats

Viewing 2 posts - 1 through 2 (of 2 total)
Reply To: NSEI and site GPRS Dimensioning ..
Your information:




<a href="" title="" rel="" target=""> <blockquote cite=""> <code> <pre class=""> <em> <strong> <del datetime="" cite=""> <ins datetime="" cite=""> <ul> <ol start=""> <li> <img src="" border="" alt="" height="" width="">