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baseband hopping question

Viewing 10 posts - 1 through 10 (of 10 total)
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  • #47514 Reply
    rf fan
    Guest

    Hi all,
    I’ve question about small BTS configuration with two or tree TRX per sector with baseband hopping. In wich case i’ll have more advantages: cyclyc hopping (HSN=0) or pseudo random hopping (HSN=3-63) ?
    Thaks !

    #47515 Reply
    Pix
    Guest

    Keep it simple : always use pseudo random hopping, because cyclic hopping can lead to cyclic interferences ๐Ÿ™‚

    #47516 Reply
    rf fan
    Guest

    10X Pix, i’ll do that.
    But it’s intrested … when is cyclic hopping necessary ?

    #47517 Reply
    pix
    Guest

    RF Fan,

    Ok, that’s a good question… In my opinion, never… Maybe someone else has some better answer ?

    It would require that you carefully plan the MAIO and MAI, to avoid running to sets of identical frequencies using the same cyclic law, in different cells. To much trouble ๐Ÿ™‚

    #47518 Reply
    Tomar
    Guest

    Hi all,
    cyclic hopping is posible to use in case, that you have synchronized network (with GPS). Cyclic hopping has litle bit better performance, than random hopping.
    BR Tomar

    #47519 Reply
    Pix
    Guest

    Hello Tomar,

    Do you know operators that use GPS-synchro GSM networks ? I wonder if it exists or not…? It must cost a lot of money, for very little improvement in terms of performances.

    #47520 Reply
    Tomar
    Guest

    Hi Pix,
    somebody told me, that some operator in USA use this feature. I know that Siemens has this feature.
    BR
    Tomar

    #47521 Reply
    rf fan
    Guest

    Thank you boys,
    I don’t know what is principle of GPS-synchro GSM networks. Please tell me more about this (just for my studiousness) ๐Ÿ™‚ ๐Ÿ™‚

    #47522 Reply
    Jainam
    Guest

    what is the advantages and disadvantages of baseband and synthesizer hoping?

    #47523 Reply
    Masud Parvez
    Guest

    what is the advantages and disadvantages of baseband and synthesizer hoping?

Viewing 10 posts - 1 through 10 (of 10 total)
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