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

loading factor

Viewing 15 posts - 1 through 15 (of 16 total)
  • Author
    Posts
  • #48654 Reply
    verma
    Guest

    dear pix,
    can u plz tell me abt loading factor vd example.
    n tell me,hw v use loading factor in 1*3 and 1*1…

    #48655 Reply
    pix
    Guest

    i don’t have the info right now, but i’ll have a look later this week. sorry for the delay ๐Ÿ™‚

    #48656 Reply
    seth
    Guest

    #empty TCH /total TCH ==free factor…

    # ocupied TCH/ total == load factor….

    used in preferring or inhipiting cell from HO as (Cogestion releaf hand over)

    #48657 Reply
    verma
    Guest

    thanx seth,
    n pls tell me hw v use this in 1*3
    n 1*1 hfs.

    #48658 Reply
    pix
    Guest

    load factor and free factor are parameters.. but the loading factor is a calculation made to estimate the usage of the frequency carriers when using synthetized frequency hopping.

    so those are two very very different things…

    #48659 Reply
    Bhanu
    Guest

    Loading factor is:
    = (Toatal No of TRX Hopping/Total no of frequencies in MA LIST)*100

    So if u r having 3 TRX as hopping and 6 frequencies in MA List, then ur loading factor is 50%.
    In 1*1, recommended value is 16.5% and in 1*3 it is 33%.(For Manual optimization), If u r using

    #48660 Reply
    pix
    Guest

    thanks bhanu ๐Ÿ™‚

    #48661 Reply
    Naren
    Guest

    Ok can you explain what will happen if we have much load the loading factore??????????…….

    #48662 Reply
    bhanu
    Guest

    ur quality will degardes because collision frequency will increase, but if u r doing optimization through IOS(Intelligent Optimization Server, we call in Motorola)then it is possible to have 100% loading.

    #48663 Reply
    Naren
    Guest

    Hi Bhanu,
    Thanx for ur feedback now can you explain me…..if we have 15 frequencies in MA list and using 1*1 with 16.5% LF then what are the points we have to take in our mind while fqu planning.

    #48664 Reply
    pix
    Guest

    >>> Naren,

    In 1X1, you must still plan your BCCH frequencies.

    You must take into consideration cells that belongs to different layers though. In 1×1 on the macro layer, cells in other layers might use different MA list.

    And finally, with 15 frequencies in 1×1, your max rf load should be 10%, to ensure a good quality. Since RF LOAD = nb TRX per cell / nb FREQ, then :
    nb TRX per cell = 15 x 10% = 1.5.
    Meaning that you should keep an average of 1 bcch TRX + 1.5 tch TRX per cell. That is about 7 TRX per 3-sectors site.

    If you accept a poorer quality, you can increase the rf load up to 16.5%, which allows you to use 2.4 tch TRX/cell. Plus the BCCH TRX, that gives you 3.4 TRX/cell.

    >>> Bhanu,

    An optimization can lead to 100% of RF load with acceptable voice quality ? The only possibility to reach 100% rf load is to avoid overlap between two cells, isn’t it ? I really don’t understand how it is possible to get such a value… it would mean that the probability of interference is huge !!

    I’m really curious about this…

    Thanks,

    #48665 Reply
    bhanu
    Guest

    Hi Pix
    I have seen it, it is not in our network it is in our competitor’s N/W, but When u do optimisation through Server, it suggests all the changes, it do optimisation itself then u can do nothing ,It collects data from BSC and suggests changes accordingly, yaa quality degrades, but still acceptable.

    #48666 Reply
    seth
    Guest

    Dear All

    Do you know about the load factor in 3G.

    #48667 Reply
    pix
    Guest

    bhanu,

    oh ok… so you “think” your competito can achieve that ? But i doubt the RF load can reach 100%. It is impossible…!

    Even an optimization server can’t do it… don’t be afraid of machine, they are usually as good as the guy who programmed them ๐Ÿ™‚ And this guy is certainly not better than us ! :))

    #48668 Reply
    Bhanu
    Guest

    No Pix, I do not think, it is so, it can be achieved through IOS.
    One thing is very true that machine can never be intelligent than a human:)

Viewing 15 posts - 1 through 15 (of 16 total)
Reply To: loading factor
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="">