Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

interl_layer HO thresh

Viewing 7 posts - 1 through 7 (of 7 total)
  • Author
    Posts
  • #52248
    BSS
    Guest

    dear
    any body can help me with the deep explanation for inter-layer HO thrsh between 900 and 1800 because i have problem with the understanding for this parameter when I checked in TEMS is not as i considered fro exampe in my network put this paramter as -70dBm as I understood the mobile will camp on 1800 until Rxlevel reach -70 and then make HO but what i found is that less than this level the mobile still on 1800 let say -75dBm need help.

    #52249
    Da Architect
    Guest

    What are the following parameters for 900 cell and 1800 cell?
    layer
    layerhyst
    layerthr

    if R12 or R11?

    HCSIN and HCSOUT values if R12

    #52250
    BSS
    Guest

    dear Da Architect
    thanks alot just I want some one explain to me the procedure of working

    #52251
    pix
    Guest

    BSS, if you list down your current values, Da Architect can tell you what is happening in your network.

    #52252
    Da Architect
    Guest

    I will try a simple way to explain it.

    900 cell got layer = 2
    900 cell got layer_threshold = 80
    900 cell got layer Hyst = 5
    1800 cell got layer = 1 (implies higher priority)
    1800 cell got layer_threshold = 70
    1800 cell got layer Hyst = 5

    Procedure:
    a MS assign to 1800 cell because it has higher layer priority + Rxlevel is better than layer_thr_1800. MS HO to 900 cell only if Rxlevel is worse than (layer_thr_1800 + layer_hyst_1800)and RXlevel is better than layer_thr_900.

    so in your case you mobile stayed in 1800 until level -75 (layer_thr_1800 + layer_hyst_1800).

    #52253
    BSS
    Guest

    Da Architect
    thank you very much for the detail explanation this is what I want

    #52254
    GSM
    Guest

    Hi Da Architect,

    Plz I have the following parameters:
    (1800)
    RX_LEV_ACCESS_MIN=-90dbm
    Layer of the Cell=2
    Inter Layer HO Threshold=-70dBm
    Inter Layer HO Hyst.=5
    (900)
    RX_LEV_ACCESS_MIN=-102dBm
    Layer of he Cell=3
    Inter Layer HO Threshold=-85 dBm
    Inter Layer HO Hyst.=5

    Could u please explain me the scene of MS between 1800 & 900?

Viewing 7 posts - 1 through 7 (of 7 total)
  • The forum ‘Telecom Design’ is closed to new topics and replies.